JPH08145356A - Flame reaction member for gas burning appliance and manufacture thereof - Google Patents

Abstract

PURPOSE: To improve the coloring property and durability of a flame reaction material on the occasion when the flame reaction material is heated by a gas flame and the gas flame is colored with bluish green by a flame reaction. CONSTITUTION: A flame reaction material 3 is constituted of a compound prepared by mixing and melting a flame material of CuO and a fusion material containing B2 O3 and Al2 O3 which are mixed with the flame material, melted and vitrified and a low-melting glass material, and it is fusion-bonded to a support base 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is arranged in a gas burning appliance such as a gas lighter for smoking equipment, an igniter, and a torch, and the color of the gas flame burning by the burner or the like is changed to blue green by a flame reaction. TECHNICAL FIELD The present invention relates to a flame-colored reaction member that is colored in the background and a method for manufacturing the same.

[0002]

2. Description of the Related Art Conventionally, in burning appliances such as candles, lighters, torches and the like, it is effective to color the burning flame with a flame-reactive material in order to enhance the value for ornamental and decorative purposes, and it is colorless. It is effective for safety to color the combustion flame to give distinctiveness.

The flame color reaction utilizes a phenomenon in which when a salt such as an alkali metal or an alkaline earth metal is strongly heated in a flame of a burner, the flame emits a color peculiar to each metal. For coloring, a metal element salt that emits a required flame color may be interposed in the flame.

For example, in the case of a candle, metal salt of stearic acid as a flame reaction material is mixed with the wax material, and the flame reaction material is mixed and volatilized at the same time as the volatilization of the molten wax material in the process of burning the candle. Color is developed by heating at.

On the other hand, in the case of a combustion instrument, an aqueous solution of a water-soluble inorganic salt is sprayed into a flame or impregnated into a carrier material and dried, and then the carrier material is placed at a high temperature portion in the flame to develop a color. I have to. In particular, in a gas lighter, a coil-shaped nichrome wire is installed near the crater, and a flame coloring material is applied to this to obtain a colored flame.

Further, the flame-colored material containing the flame-colored material is adhered to the wire-shaped support by dipping or the like, and the support to which the flame-colored material is adhered is heated to remove the binder or the like of the flame-colored material. There is known a method of producing a flame reaction member by baking the support so as to support the flame reaction product.

[0007]

However, as described above, regarding the coloring of the flame by utilizing the flame reaction, the flame reaction is constantly generated in the gas combustion instrument equipped with the burner for mixing the primary air. It is difficult to obtain a flame-color reaction member which is generated and has a stable color flame and which has high thermal durability against repeated combustion and has a long life.

Specifically, a wire-like support substrate is dipped in a viscous liquid flame-coloring material obtained by mixing a binder or the like with a flame-coloring material made of a salt such as an alkali metal or an alkaline earth metal showing a flame-coloring reaction. When this flame-colored material is attached and then baked to provide a flame-colored reaction member, and when this flame-colored reaction member is installed at the crater of a gas combustion device such as a gas lighter, the flame-colored reaction material becomes chemically unstable. If so, the flame-colored reaction material deteriorates when left for a long time, and the desired flame-colored reaction cannot be obtained, or if the heat-resistant strength is insufficient, flame-coloring occurs due to the cold heat cycle between each use by ignition combustion and extinguishing cooling. The reaction material is cracked and partially cracked to cause the problem that the entire flame cannot be colored.

Further, the flame-colored reaction material is such that the flame-colored metal is scattered and consumed in the flame in response to heating by the gas flame during color development, and the amount of the flame-colored metal scattered is reduced according to its use. There is also a problem that the color development becomes unstable or becomes thin, and it cannot be used repeatedly or for a long time, and the life is short,
Further, depending on the composition of the flame reaction material, there is a problem that the activity of the flame reaction is low and it takes time from heating to color development. In particular, in a gas lighter, the ignition time associated with its use is short, and the time from ignition to the coloring of the flame due to the flame color reaction needs to be as short as possible. Durability is required.

Further, as the characteristics of the flame reaction material,
The flame reaction material is firmly held on the supporting substrate, the flame reaction material is chemically stable even if left in the air for a long time, and the flame reaction material is consumed by repeated use. It is required to have a long life, in which a small amount of it remains continuously and always shows a flame reaction.

The present invention has been made in view of the above circumstances, and in order to obtain a flame reaction that develops a blue-green color, a flame reaction member for a gas combustion appliance excellent in color development and durability and a method for producing the same. It is intended to provide.

[0012]

In order to achieve the above object, the flame reaction member of the present invention comprises a flame reaction material which develops a blue-green color, mixed with a flame color material made of CuO and melted. It is characterized by comprising a compound obtained by mixing and melting B ₂ O _{3 to be} vitrified and a melting material containing a low melting glass material.

It is preferable that the melting material further contains Al ₂ O ₃ , and the low melting glass material is SiO 2.
Composed of ₂ , B ₂ O ₃ and ZnO, especially S
It is preferable to use one composed of iO ₂ : 10%, B ₂ O ₃ : 25% and ZnO: 65%. Furthermore, the low melting glass material, 3 _{CuO-B 2 O 3 -Al 2} O 3
It is preferable to mix 20 to 40% by weight with respect to the original material.

CuO-B₂O₃-Al₂O₃3 yuan
As shown in the attached FIG. 1, the system material is point A (CuO: 1
0%, B₂O₃: 90%, Al₂O₃: 0%), B (C
uO: 10%, B₂O₃: 70%, Al₂O₃: 20
%), C (CuO: 20%, B₂O₃: 50%, Al₂
O₃: 30%), D (CuO: 50%, B₂O₃: 20
%, Al₂O₃: 30%), E (CuO: 65%, B₂
O₃: 20%, Al₂O ₃: 15%), F (CuO: 6)
5%, B₂O₃: 25%, Al₂O₃: 10%), G
(CuO: 50%, B₂O₃: 50%, Al₂O₃: 0
%) Is preferably blended within the range surrounded by.

It is preferable that the flame-color reaction member is formed by fusing a flame-color reaction material composed of a compound of the flame-color material and the melting material to a supporting substrate. As the supporting substrate, it is suitable to use a wire made of nickel-chromium alloy having high heat resistance.

On the other hand, the method for producing a flame reaction member of the present invention comprises a flame coloring material made of CuO, and a melting material containing B ₂ O ₃ and a low melting glass material mixed with the flame coloring material to be vitrified. After coating the mixed material into a viscous liquid by coating on a supporting substrate, the mixed material is heated to a temperature equal to or higher than its melting point to fuse the flame reaction material by the molten compound to the supporting substrate. It is preferable to mix a binder into the mixed material to form a viscous liquid, and then apply it to the supporting substrate, in which case the binder is removed before heating to the melting point or higher. Pre-heat treatment is performed.

[0017]

The flame-colored reaction member for gas combustion appliances of the present invention is C
The flame-colored material made of uO is mixed with a molten material containing B ₂ O ₃ and a low-melting glass material to form a flame-colored reaction material, and the flame-colored reaction material is chemically vitrified by vitrification. It has stable properties and is not affected by humidity, etc., and a flame-color reaction occurs steadily, a stable blue-green color is produced, and it has excellent durability.

Further, as the melting material, a material containing Al ₂ O ₃ , particularly, a mixture of a low melting glass material composed of SiO ₂ , B ₂ O ₃ and ZnO is used. the amount and CuO-B ₂ O ₃ of -Al ₂ O
_When the compounding ratio of ₃ is within the above range, heat resistance strength, mechanical strength and fusion strength to a supporting substrate are both high and good durability can be obtained together with stabilization of blue-green flame reaction and chemical properties. The low melting point facilitates color development of the flame-colored member.

In the manufacturing method of the present invention, after the flame-colored material made of CuO and the molten material containing B ₂ O ₃ and the low melting glass material are mixed to form a viscous liquid, the mixed material is applied to the supporting substrate. In addition, it is possible to manufacture by a simple process in which the flame reaction material by the compound is fused to the supporting substrate by heating, and the fused compound is gathered into a spherical shape due to its surface tension, and a good fused state can be obtained.

The color development by the flame-color reaction material is such that when the flame-color reaction material is heated by a gas flame that is burned in a substantially colorless state due to the inclusion of air, the heated compound is melted and the flame-color reaction material is melted. CuO as a flame-colored metal oxide undergoes a reduction reaction in a reducing flame, the reduced Cu metal atoms scatter in the flame, the flame-colored metal atoms move, and air is further mixed to burn at high temperature. When heated in a high-temperature combustion flame, a bright line spectrum is generated, and the gas flame develops a blue-green color.

[0021]

EXAMPLES Examples of a flame reaction member and a method for producing the same according to the present invention will be described below with reference to the drawings, but this example shows an example of application to a gas lighter as a gas combustion instrument. 2 is a front view showing in sequence the steps for producing a flame reaction member, FIG. 3 is a sectional view of a gas lighter equipped with a flame reaction member, and FIG. 4 is an enlarged sectional view of a combustion cylinder portion.

As shown in FIG. 2C, the flame reaction member 1
Is composed of a support base 2 made of a heat-resistant material such as nickel-chromium alloy wire (hereinafter referred to as nichrome wire), and a glass spherical flame-colored reaction material 3 made of a glass compound fused to the support base 2.

As shown in FIG. 2 (A), the support base 2 has a winding portion 2a formed by winding the central portion of a nichrome wire twice in a coil shape. The winding portion 2a has a linear shape. The portion is provided on the mounting portion 2b. As a specific example, the diameter is 0.
The diameter (outer diameter) of the winding part 2a is formed to be about 1.0 mm using a 15 mm nichrome wire.

The flame reaction material 3 is fused to the winding portion 2a of the support base 2. The flame reaction material is an oxide of copper Cu exhibiting a flame reaction, that is, a copper oxide CuO, and the flame reaction material. A mixed material of boron oxide B ₂ O ₃ which is mixed and melted to be vitrified, aluminum oxide Al ₂ O ₃ and a molten material containing a low-melting glass material is made into a viscous liquid, and then this mixed material 3 ′ is changed to FIG. 2), the flame reaction material 3 is applied to the winding portion 2a of the supporting substrate 2 and heated to a temperature equal to or higher than the melting point of the mixed material 3'and formed into a spherical shape by the surface tension of the molten compound. It is fused as shown in (C).

The molten material is B ₂ O ₃ or Al ₂ O ₃
In addition, for example, a mixture of a low-melting glass material composed of SiO ₂ —B ₂ O ₃ —ZnO is used. The specific formulation example will be described later.

Further, as the low-melting glass material, one having a low melting point that does not affect the flame reaction and a powdery glass frit for bonding or the like is appropriately selected and used. The composition thereof is as shown in Table 1 below.

[0027]

[Table 1]

The low-melting glass materials (hereinafter referred to as glass frits) in Table 1 above also show some flame reaction, and the flame colors are No. 1 light purple and No. 2 light orange. , No. 3 is orange. The flame color of the glass frit is mixed so as not to hinder the color development of the blue-green color due to the flame color material CuO, and the strength of the flame color reaction material 3 is increased to improve the practical performance. Note that glass frits having compositions other than those exemplified can also be used.

Further, the glass frit of No. 3 having a relatively high melting point has a characteristic that the flame reaction material 3 can be firmly fused to the supporting substrate 2.

On the other hand, as a method of manufacturing the flame reaction member 1, the powder of the flame coloring material and the molten material are mixed and
Mixed material 3'to which a binder is added to make it viscous
Is applied to the winding part 2a of the support base 2 in a predetermined amount, dried at room temperature, and then held at, for example, 300 ° C. for 15 minutes to remove the binder, and at a temperature higher than the melting point of the mixed material. For example, it is heated and baked at 800 ° C. for 30 minutes. In this firing process, the mixed material 3'applied to the winding portion 2a is melted and vitrified, and
The surface tension forms a spherical shape so as to cover the inside of the winding part 2a and the winding part 2a, and is cooled and solidified to fuse the glass spherical flame-colored reaction material 3 thereto.

The structure of the gas lighter having the flame reaction member 1 will be described with reference to FIGS. 3 and 4.
The gas lighter 10 is a tank body 11 in which fuel gas is stored.
At the bottom. The tank body 11 is made of synthetic resin, has a bottom lid 11a coupled to the bottom to store high-pressure fuel gas such as butane gas, and a side wall 11b is integrally formed on the upper peripheral surface of the tank body 11. ing. At the upper end of the tank body 11, a valve mechanism 12 having a nozzle 13 for ejecting fuel gas is housed and mounted in a valve housing 32. Above the nozzle 13, a combustion cylinder 18 for combusting the fuel gas ejected from the nozzle 13 is installed. In order to make the combustion flame colorless (light blue) as a gas combustion method by the combustion cylinder 18. It is of a primary air mixing internal combustion type in which primary air is sucked and mixed.

Further, a piezoelectric unit 14 is disposed on the side of the valve mechanism 12, and the valve mechanism 12 is operated on the upper end of the piezoelectric unit 14 to eject fuel gas and operate the piezoelectric unit 14. An operating member 15 for igniting is provided. The piezoelectric unit 14 and the operating member 15
The combustion cylinder 18 is held by the inner housing 16 and assembled to the tank body 11. Further, a tiltable lid 17 for opening and closing the upper portions of the combustion cylinder 18 and the operating member 15 is provided. A fulcrum member 17a is fixed to the lid 17, the fulcrum member 17a is pivotally supported by the tank body 11 by a pin 21, and the fulcrum member 17a is provided on two surfaces of the lid 17 to hold the lid 17 in the open position and the closed position. The push-up member 22 that abuts is installed while being biased upward.

The valve mechanism 12 has a passage opened by upward movement of the nozzle 13 and ejects gas from the tip thereof. An L-shaped operating lever 19 having one end engaged with the nozzle 13 is arranged. The operating lever 19 is rotatably pivoted at an intermediate fulcrum, and the operation portion at the other end is rotated by contact with a lever push 15a provided on the operation member 15, and is operated by the nozzle 13. Open and close the gas jet. A nozzle plate 20 (see FIG. 4) having a hole of a predetermined diameter (for example, 50 μm) is installed at the tip of the nozzle 13 and is fitted into the bottom of the combustion cylinder 18 so that gas is ejected into the combustion cylinder 18 at high speed. To do.

Further, the valve mechanism 12 is provided with a gas flow rate adjusting filter 23 for adjusting the injection amount of the fuel gas to a substantially constant amount with respect to the temperature change. The gas flow rate adjusting filter
23 is installed in a compressed state on the bottom of the valve mechanism 12 by a nail-shaped stator 24. The liquefied fuel gas that has moved from the tank through the porous core 33 flows through the filter 23 from the outer periphery to the center in the radial direction and is vaporized.
The microstructure of 23 is formed by a microcell polymer foam having bubbles that form gas passages in which contacts communicate with each other through fine holes and closed cells that expand or contract due to temperature change to compress or expand the gas passages. The gas flow rate is automatically adjusted with respect to the temperature change.

On the other hand, as shown in FIG. 4, the combustion cylinder 18 is composed of a base member 25 at the base and a combustion pipe 26 fixed to the base member 25 and extending upward. A gas passage extends through the center of the base member 25, the tip of the nozzle 13 is fitted into the lower end of the base member 25, and primary air holes 25a are formed on both sides above the lower end of the base member 25 so as to penetrate therethrough in the radial direction. There is. Further, a swirl plate 27 is provided on the upper end of the base member 25.
And a metal mesh member 28 are placed. Swirl plate 27
Is to form an opening in a metal disk to generate a turbulent flow in a gas flow, thereby improving mixing between fuel gas and primary air. Further, the metal mesh member 28 is formed of a circular wire mesh and prevents the flame from moving backward.

The operation member 15 is held slidably downward by being assembled with the piezoelectric unit 14, and the discharge electrode 29 connected to the piezoelectric unit 14 is provided on the side of the operation member 15.
However, it is disposed so as to face the inside by an electrode holder 30 which is disposed so as to penetrate the side surface of the combustion tube 26 of the combustion cylinder 18.

In the base member 25 of the combustion cylinder 18, the upper outer peripheral portion of the primary air hole 25a is engaged and supported by the inner housing 16, is held together with the combustion pipe 26, and the electrode 29 and the electrode holder 30 are assembled. A cover 31 is arranged on the outer side of the inner casing 16 to fix the combustion cylinder 18.
Since the piezoelectric unit 14 and the operating member 15 are assembled into an assembly and assembled to the tank body 11, the assembly process can be simplified.

The flame reaction member 1 is disposed near the upper end of the combustion pipe 26 of the combustion tube 18. The flame-colored reaction member 1 has a mounting portion 2b extending at both ends of the winding portion 2a fixed to a ring body 6 having the same shape as the combustion tube 26, and is installed in the radial direction. The ring 6 is installed on the upper end of the combustion pipe 26, the cap 34 is attached to the outer periphery thereof, and the flame reaction member 1 is disposed on the upper end crater opening of the combustion pipe 26.

In the structure of the gas lighter 10 as described above, when the operating member 15 is pushed down, the lever push 15a rotates the actuating lever 19 to lift the nozzle 13 and eject the fuel gas. Primary air hole 25a opened to the side by negative pressure generated by the flow velocity and flow rate of gas flowing out of the nozzle 13.
The primary air is sucked from the air, mixed with the ejected gas, passed through the mesh member 28 for flashback prevention, and then mixed with the gas in the swirl plate 27.
Next air is agitated and mixed, and rises in the combustion pipe 26.

Then, by further pushing down the operating member 15, the piezoelectric unit 14 is actuated and a high voltage for discharge is applied to the electrode 29 to discharge, and the mixed gas is ignited, and the mixed gas with air is mixed. Rises while burning, passes through the flame reaction member 1, and exits from the combustion cylinder 18. Combustion cylinder 18
Secondary air is mixed in the upper end edge of the combustion cylinder 18 in the mixed gas that comes out, and complete combustion occurs.

The combustion of the mixed gas at this time has a rising velocity of the mixed gas flow with respect to the combustion speed of the mixed gas.
Combustion is being performed inside the upper end of 18, but mixed with the unburned gas flow, and the temperature of the flame reaction member 1 rises due to combustion heat, but it becomes an incomplete combustion region and a reducing atmosphere. . When the mixed gas reaches the upper end of the combustion cylinder 18, the combustion gas flow is diffused into the outside air, and at the same time, the secondary air is mixed and the mixed gas is completely combusted. It rises more rapidly and combustion continues.

Flame reaction material 3 in the flame reaction member 1
Is a compound of a low melting point material of around 600 ° C. to 1200 ° C., and when the gas lighter 10 is ignited, the flame reaction material 3
Melts with increasing temperature. In this flame-colored reaction material 3,
As described above, copper oxide CuO as a flame colorant, at least B ₂ O ₃ forming a compound, and a low-melting glass frit are contained, and the molecular activity becomes active as the temperature rises.
CuO is reduced by the reducing atmosphere of the gas flame, and Cu, which is a flame color metal, dissociates and scatters. Then, as it rises along with the gas flow and is carried into a complete combustion flame, where it is heated to a high temperature, flame-colored metal atoms are excited and emit a bright line spectrum of a wavelength peculiar to Cu to develop a blue-green color, and the gas flame Will be colored.

It is preferable to dispose the flame-color reaction member 1 at a relatively inner portion of the combustion cylinder 18 from the viewpoint of preventing damage, but in a region where the reducing atmosphere corresponds to the temperature distribution of the gas flame. In addition, the flame reaction member 1 is arranged in a portion where the temperature rises quickly.

As described above, the flame reaction member 1 is specifically copper oxide CuO as the flame colorant, and boron oxide B ₂ O ₃ and aluminum oxide A as a part of the melting material.
l ₂ O ₃ is selected and these are contained in a predetermined composition range (described later).
Obtaining a ternary material _{CuO-B 2 O 3 -Al 2} O 3 which in mixed.

Further, a low-melting glass material is added as a melting material. As the low-melting glass material, a glass frit of No. ₂ having the SiO ₂ —ZnO—B ₂ O ₃ composition shown in Table 1 ( A melting point of 750 ° C.) is selected, and 30% by weight of this glass frit is mixed with the ternary material. A 5% aqueous solution of polyvinyl alcohol is added as a binder to the mixed powder and kneaded to prepare a viscous liquid mixed material, which is applied to the winding portion 2a of the support base 2 in a predetermined amount.

After being dried at room temperature, it is put in a heating furnace for 30 minutes.
The temperature is kept at 0 ° C. for 15 minutes to thermally remove the binder. After that, further raise the temperature to 800 ° C for 3
Since the melting point of the mixed material is about 750 ° C., it is melted by heating at a temperature higher than this, and becomes spherical due to its surface tension, and becomes a glass compound in a cooled state. Then, the flame reaction material 3 is fused.

As the flame reaction member 1 incorporated in the actual gas lighter 10, specifically, CuO: 0.3 g, B
₂ O ₃ : 0.28 g and Al ₂ O ₃ : 0.12 g were mixed, and 0.4 g of the SiO ₂ —ZnO—B ₂ O ₃ glass frit was mixed with this, and the mixed powder was mixed with 5 parts of polyvinyl alcohol. % Aqueous solution is added and stirred to form a viscous liquid, which is applied to the winding portion 2a of the supporting substrate 2 shown in FIG. After drying at room temperature, the polyvinyl alcohol is removed by heating at 300 ° C. for 15 minutes and the fusion is performed at 800 ° C. for 30 minutes.

The above compounding ratio is the optimum condition,
The -B ₂ O ₃ -Al ₂ O flame reaction member 1 obtained by variously changing the ternary blend ratio of material _3, lighter shown in FIG. 3
Various experiments were conducted to obtain the characteristics of the flame-color reaction member 1 by incorporating it in the sample No. 10, and the results of the experiments for obtaining the appropriate range of the composition are shown below. The characteristics required for the flame reaction member 1 to be installed in the gas lighter 10 are that it develops a color in a short time after ignition to color the gas flame, and that it has strength and durability to withstand thermal changes due to repeated ignition and coloring. The tests corresponding to such required characteristics are as follows.

1. Vitrification test It is required to vitrify easily at low temperature, and the compounding amount of the ternary material is variously changed.
A sample of 30% of the glass frit of (1) was made into a viscous liquid with a binder, and the sample was applied to the supporting substrate 2 at 800 ° C. × 3.
The results of visually observing the welded state of the sample after the 0 minute heat treatment are shown in FIG. It was determined that the spherically fused support substrate 2 was completely vitrified, and that in the solid state was almost vitrified.

In the figure showing the mixture ratio of FIG. 5 (the same applies to the later-described diagram and FIG. 1), the mixture ratio of the substances at each vertex is 0% at the opposite side and 100% at the vertex, which is parallel to the opposite side. The line shows the scale every 10%.

2. Compressive Strength Test This is required to have high compressive strength of the fused flame reaction material 3, and the sample prepared in the vitrification test is loaded on the flame reaction material in the compression direction using a compression tester. Was added, and the load value when the load was gradually increased and the sample cracked was read as the compressive strength. The measurement results are shown in FIG. The flame-colored reaction material 3 for a gas lighter may have a compressive strength of 5 kg or more, preferably 10 kg or more before a durability test described later.

An example of actually measured values of compressive strength is as follows: CuO: 20%, B ₂ O ₃ : 70%, Al ₂ O ₃ : 10% ...... 15.3Kg CuO: 10%, B ₂ O ₃ : 90% , Al ₂ O ₃ : 0% 8.9 kg CuO 30%, B ₂ O ₃ 20%, Al ₂ O ₃ 50% ...... 3.6 kg.

3. Coloring test This is to test that the initially desired blue-green coloration has been obtained, and the flame-coloring reaction member 1 created in the vitrification test is attached to the gas lighter 10 and ignited to produce a degree of coloration. FIG. 7 shows the result of visual discrimination. The optimal state is to develop a dark color beautifully, good results can be obtained in a normally colored area, and it can be sufficiently used in a light area.

4. Durability test It is a test to test the durability of the gas lighter more than necessary times according to the use of the gas lighter by repeating ignition and coloration. The result of measuring the number of times is shown in FIG.

5. Continuous ignition test This test is to test that the flame color state does not change by continuing the gas combustion continuously for a long time.
FIG. 9 shows the result of the visual determination of the change in coloration when the product was mounted on and was continuously burned for 30 seconds.

6. Moisture absorption test This is a test to check that there is no change in moisture absorption when left in the air. As a result of being left for 24 hours in an atmosphere of a temperature of 50 ° C and a humidity of 80%, the test shows that it is particularly vitrified. No abnormality was found.

According to the results of the various tests described above, the vitrification region has a high compressive strength, and the coloring region and the durability region are similar to each other. These regions contain CuO to a certain extent or more and B ₂ O. A large amount of ₃ is mixed, A
It was found that the amount of 1 ₂ O ₃ blended was relatively small, and the composition range and the optimum composition range that are totally suitable are the areas shown in FIG. 10.

When the optimum range of FIG. 10 is approximated,
As shown in FIG. 1, point A (CuO: 10%, B ₂ O ₃ :
90%, Al ₂ O ₃ : 0%), B (CuO: 10%, B
₂ O ₃ : 70%, Al ₂ O ₃ : 20%), C (CuO:
20%, B ₂ O ₃ : 50%, Al ₂ O ₃ : 30%), D
_{(CuO: 50%, B 2} O 3: 20%, Al 2 O 3: 3
0%), E (CuO: 65%, B ₂ O ₃ : 20%, Al
₂ O ₃ : 15%), F (CuO: 65%, B ₂ O ₃ : 2)
5%, Al ₂ O ₃ : 10%), G (CuO: 50%, B
_{2 O 3: 50%, Al} 2 O 3: be in the range surrounded by the 0%), it is preferable to blend the _{CuO-B 2 O 3 -Al 2} O 3 within this range.

Next, the results of measuring the influence of the glass frit content will be shown. In this test, as an example of the optimum ternary composition, CuO: 20%, B ₂ O ₃ : 70%,
Al ₂ O ₃ : 10% was selected, which is the P ₁ point in FIG. 10, and the compounding ratio of the NO.2 low melting glass frit having the SiO ₂ —ZnO—B ₂ O ₃ composition in Table 1 was 0. % -100%
FIG. 11 shows the results of measuring the compressive strength of the sample prepared by the same procedure as in the above vitrification test. Further, FIG. 11 also shows the results of measuring the compressive strength after the sample was mounted on the gas lighter 10 and after 600 ignition durability tests.

Regarding the compounding amount of the above glass frit,
In the region where the amount of low-melting glass frit is less than 5%, the strength before the durability test is low, and the decrease in the compressive strength after the durability test is particularly large at less than 20%. Further, when the low-melting glass frit amount exceeds 40%, the color changes from green to green + orange, and when it exceeds 60%, it changes to orange, and as the blue-green color which is the flame reaction color of Cu, The glass frit content is limited to 40% or less.

The phenomenon that the flame color changes is N
This is because the flame color of the glass frit of O.2 is a light orange color, and the influence of the flame color of the glass frit increases as the compounding amount of the glass frit increases. Also, a large amount of B ₂ O ₃ is mixed in the glass frit of No. ₂ ,
The flame reaction color of B ₂ O ₃ itself is light green, and Cu
Even if it is mixed to some extent with the green flame color, it does not affect the green color, and since B ₂ O ₃ has an effect as a coloring aid, it is preferable that the amount is as large as possible. Will develop color if mixed in a small amount, so B ₂
When the content of O ₃ is large, it has a characteristic that color development is stable.

Further, the amount of the ternary material was set to 0.01 g, and a sample in which the compounding amount of the low-melting glass frit was changed was attached to the gas lighter 10, and after ignition, until a gas flame was developed. The result of measuring the time is shown in FIG. When the content of glass frit is 40% or more,
The time required for color development increases.

Further, similarly to the above, a sample in which the compounding amount of the low melting glass frit with respect to 0.01 g of the ternary material was changed was mounted on a gas lighter, and the result of obtaining the durable life of the number of colorings by ignition was obtained. It shows in FIG. In the compounding range of 40% or less where the flame color of Cu, that is, blue-green, is obtained,
When the blending amount of the glass frit is reduced, the number of times of durability tends to be reduced.

According to the above results, the SiO ₂
The glass frit having a composition of —ZnO—B ₂ O ₃ is the Cu
O-B ₂ O ₃ with respect -Al ₂ O ₃ ternary material 20-4
It is preferable to add 0% by weight.

Although the glass frit having the composition of No. 2 is superior in durability to the glass frit having the other composition, it is used for the ternary material of this example. Depending on the gas combustion equipment used, it may be preferable to blend another glass frit.

[0066]

According to the present invention as described above, the flame reaction material contains the flame coloring material made of CuO, B ₂ O _{3 which} is mixed and melted with the flame coloring material to be vitrified, and the low melting glass material. Composed of a compound made by mixing and melting a molten material, the chemical properties are stable and the flame-color reaction of blue-green is constantly generated without being affected by humidity, etc., and color development and durability are improved. Is what you can do.

Further, according to the production method of the present invention, the flame reaction member excellent in color development and durability can be obtained by a simple process of applying a mixed material of a flame coloring material and a melting material and applying heat treatment. In addition, the flame-color reaction material can be formed into a spherical shape due to the surface tension at the time of melting, and a good fused state can be obtained.

[Brief description of drawings]

FIG. 1 is a diagram showing an optimum blending range of a ternary material of the present invention.

FIG. 2 is a front view showing the steps of producing a flame reaction member of the present invention in order.

FIG. 3 is a vertical cross-sectional view showing a gas lighter as a gas combustion instrument having a flame reaction member of the present invention.

FIG. 4 is an enlarged cross-sectional view of a main part of the gas lighter shown in FIG.

FIG. 5 is a diagram showing the relationship between the mixing ratio of ternary materials and the vitrification range.

FIG. 6 is a diagram showing the relationship between the compounding ratio of ternary materials and compressive strength.

FIG. 7 is a diagram showing the relationship between the mixing ratio of ternary materials and color development.

FIG. 8 is a diagram showing the relationship between the compounding ratio of ternary materials and durability.

FIG. 9 is a diagram showing the relationship between the mixture ratio of ternary materials and the results of continuous ignition test.

FIG. 10 is a diagram showing an appropriate compounding range of a ternary material.

FIG. 11 is a graph showing the relationship between the compounding amount of glass frit and the compressive strength.

FIG. 12 is a graph showing the relationship between the amount of glass frit compounded and the time until color development.

FIG. 13 is a graph showing the relationship between the compounding amount of glass frit and the number of durable color developments.

[Explanation of symbols]

 1 flame-color reaction member 2 support base 2a winding part 3 flame-color reaction material 10 gas lighter (gas combustion instrument) 18 combustion cylinder F flame

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Satoshi Omiyama 3-4 Subashiri Shimohara, Oyama Town, Sunto-gun, Shizuoka Prefecture Tokai Headquarters Factory

Claims (8)

[Claims] 1. A flame-colored reaction member for a gas combustion instrument, which heats a flame-colored reaction material with a gas flame and colors the gas flame with a blue-green color by the flame-colored reaction, wherein the flame-colored reaction material is CuO. A gas combustion instrument comprising a compound obtained by mixing and melting a flame coloring material according to 1. and a melting material containing B ₂ O ₃ and a low-melting glass material mixed and melted to be vitrified. Flame reaction member. 2. The flame reaction member for a gas combustion appliance according to claim 1, wherein the molten material contains Al ₂ O ₃ . 3. The low melting glass material is SiO ₂ , B ₂ O.
_The flame reaction member for a gas combustion appliance according to claim 1, wherein the flame reaction member is composed of ₃ and ZnO. 4. The low melting glass material is SiO ₂ : 10.
_{%, B 2 O 3: 25} %, ZnO: claim 3 gas combustion appliances for flame color reaction member, wherein that it is a composition of 65%. 5. The low melting glass material is CuO—B ₂ O ₃
The flame-color reaction member for a gas combustion appliance according to claim 2, wherein the ternary material of -Al ₂ O ₃ is mixed in an amount of 20 to 40% by weight. 6. The CuO, B ₂ O ₃ and Al ₂ O ₃
However, as shown in the attached FIG. 1, the point A (CuO: 10%,
_{B 2 O 3: 90%,} Al 2 O 3: 0%), B (CuO:
10%, B ₂ O ₃ : 70%, Al ₂ O ₃ : 20%), C
_{(CuO: 20%, B 2} O 3: 50%, Al 2 O 3: 3
0%), D (CuO: 50%, B ₂ O ₃ : 20%, Al
₂ O ₃ : 30%), E (CuO: 65%, B ₂ O ₃ : 2
0%, Al ₂ O ₃ : 15%), F (CuO: 65%, B
₂ O ₃ : 25%, Al ₂ O ₃ : 10%), G (CuO:
50%, B ₂ O ₃ : 50%, Al ₂ O ₃ : 0%) are mixed in a range surrounded by the flame reaction member for a gas combustion instrument according to claim 1. 7. The flame reaction member for a gas combustion appliance according to claim 1, wherein the flame reaction material is fused to a supporting substrate. 8. A mixed material which is made into a viscous liquid by mixing a flame coloring material made of CuO with a melting material containing B ₂ O ₃ and a low melting glass material mixed and fused with the flame coloring material to be vitrified. After being applied to a supporting substrate, the mixed raw material is heated to a temperature equal to or higher than its melting point to fuse the flame-coloring reactive material of the molten compound to the supporting substrate, the flame-coloring reaction member for a gas combustion instrument. Manufacturing method.