JPH065609Y2 - Flow tester - Google Patents
Flow testerInfo
- Publication number
- JPH065609Y2 JPH065609Y2 JP1987117951U JP11795187U JPH065609Y2 JP H065609 Y2 JPH065609 Y2 JP H065609Y2 JP 1987117951 U JP1987117951 U JP 1987117951U JP 11795187 U JP11795187 U JP 11795187U JP H065609 Y2 JPH065609 Y2 JP H065609Y2
- Authority
- JP
- Japan
- Prior art keywords
- die
- cylinder
- sample
- flow tester
- nozzle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
- Sampling And Sample Adjustment (AREA)
Description
【考案の詳細な説明】 Ａ．産業上の利用分野 本考案は細管押し出し方式によるフローテスタに関す
る。Detailed Description of the Invention A. TECHNICAL FIELD The present invention relates to a flow tester by a thin tube extrusion method.
Ｂ．従来の技術 この種のフローテスタは、樹脂，食品，セラミックス，
鉄粉等における所望温度条件下での流れ性，粘度等を測
定するものである。B. Conventional technology This type of flow tester is used for resin, food, ceramics,
It measures the flowability, viscosity, etc. of iron powder etc. under desired temperature conditions.
第２図のように、従来のフローテスタは、被測定試料１
を入れるシリンダ２と、このシリンダ２の外周に設けら
れたヒータ３と、シリンダ２の下面側に配設され試料通
過用のノズル４ａを有するダイ４と、シリンダ２に螺合
されてダイ４をシリンダ２に取付けるダイ押え５と、ピ
ストン６とを有する。矢印ａのようにピストン６に荷重
を加えると共に、ヒータ３により試料１を所要の一定値
に加熱保持すると、溶融した試料１がノズル４ａから押
し出される。このときのピストン６の下降速度を測定系
で検出し、その下降速度から試料１の流れ性等のデータ
を求める。なお、７は断熱板である。As shown in FIG. 2, the conventional flow tester uses the sample 1 to be measured.
A cylinder 2 for inserting a heater, a heater 3 provided on the outer periphery of the cylinder 2, a die 4 having a nozzle 4a for sample passage arranged on the lower surface side of the cylinder 2, and a die 4 screwed to the cylinder 2 to form the die 4. It has a die retainer 5 attached to the cylinder 2 and a piston 6. When a load is applied to the piston 6 as indicated by an arrow a and the sample 1 is heated and held by the heater 3 at a predetermined constant value, the melted sample 1 is extruded from the nozzle 4a. The descending speed of the piston 6 at this time is detected by a measuring system, and data such as the flowability of the sample 1 is obtained from the descending speed. In addition, 7 is a heat insulation board.
Ｃ．考案が解決しようとする問題点 しかしながら、上述のフローテスタは、ダイ押え５をシ
リンダ２に螺合してダイ４をシリンダ２に取り付ける構
成としたため、試験の途中でダイ４を着脱する際、ダイ
押えが高温に熱せられており作業がやりづらい。また、
ダイ交換作業時に低温のダイ４およびダイ押え５を高温
のシリンダ２に緊締してしまうとその後の熱膨張のため
ねじ部が必要以上に締めつけられ、取外しが極めて困難
となる。さらに、ノズル４ａから流出する試料１の直径
をレーザ等で計測して試料の残留応力を測定する場合、
ダイ４の下部にダイ押え５が位置しているので、ダイ押
え５の下面の位置で試料の流れＦＬにレーザを照射せざ
るを得ず、正確な残留応力が測定できない。更にまた、
ダイ押え５の下端が断熱板７から大気中に露出してお
り、このダイ押え５を介してダイ４が冷されるので、ノ
ズル４ａの壁面の温度を一定に保持できないおそれがあ
る。C. However, the flow tester described above has a structure in which the die retainer 5 is screwed into the cylinder 2 to attach the die 4 to the cylinder 2. Therefore, when the die 4 is attached or detached during the test, The work clamp is heated to a high temperature, making it difficult to work. Also,
If the low temperature die 4 and the die retainer 5 are tightened to the high temperature cylinder 2 during the die replacement work, the screw portion is tightened more than necessary due to the subsequent thermal expansion, and the removal becomes extremely difficult. Furthermore, when measuring the diameter of the sample 1 flowing out from the nozzle 4a with a laser or the like to measure the residual stress of the sample,
Since the die presser 5 is located below the die 4, the sample flow FL must be irradiated with the laser at the position of the lower surface of the die presser 5, and accurate residual stress cannot be measured. Furthermore,
Since the lower end of the die presser 5 is exposed to the atmosphere from the heat insulating plate 7 and the die 4 is cooled through the die presser 5, there is a possibility that the temperature of the wall surface of the nozzle 4a cannot be kept constant.
本考案の目的は、上述の問題点を解決したフローテスタ
を提供することにある。An object of the present invention is to provide a flow tester that solves the above problems.
Ｄ．問題点を解決するための手段 本考案は、シリンダ内部に充填された試料をヒータにて
加熱溶融してピストンで加圧し、ダイに穿設されたノズ
ルから溶融試料を流出せしめるフローテスタに実施さ
れ、ダイを下部に至ほど細くなる錐状に形成し、シリン
ダ下部にダイと相補形の錐状孔を形成し、この錐状孔に
ダイをシリンダ上部から挿入して嵌設するものである。D. Means for Solving the Problems The present invention is implemented in a flow tester in which a sample filled in a cylinder is heated and melted by a heater and pressurized by a piston, and the molten sample is flowed out from a nozzle formed in a die. The die is formed in an extremely thin cone shape in the lower portion, a cone-shaped hole complementary to the die is formed in the lower portion of the cylinder, and the die is inserted from the upper portion of the cylinder and fitted therein.
Ｅ．作用 下部に至ほど細くなる錐状に形成されたダイをシリンダ
下部に形成されたダイと相補形の錐状孔にシリンダ上部
から挿入して嵌設する。ダイが高温に熱せられてもダイ
の取付け，取外しが簡単に行なえる。また、従来、ダイ
の下部に位置していたダイ押えが不要となり、これによ
りノズルから流出した直後の試料の径をレーザ等で測定
することが可能となる。E. Operation A cone-shaped die that becomes extremely thin in the lower part is inserted from the upper part of the cylinder into a conical hole complementary to the die formed in the lower part of the cylinder. Even if the die is heated to high temperature, the die can be easily attached and detached. In addition, the die presser that has been conventionally located at the bottom of the die is no longer necessary, which makes it possible to measure the diameter of the sample immediately after flowing out from the nozzle with a laser or the like.
Ｆ．実施例 第１図に基づいて一実施例を説明する。F. Embodiment An embodiment will be described with reference to FIG.
第１図において、シリンダ２０は、試料挿入用の孔２１
ａが穿設された上部シリンダ２１と、ダイ１１が取付け
られる下部シリンダ２２とから成る。各シリンダ２１，
２２には、位置決め用の環状孔２１ｂ，２２ｂおよび環
状突起部２１ｃ，２２ｃがそれぞれ形成され、各シリン
ダ２１，２２の孔２１ｂ，２２ｂに他方のシリンダ２
２，２１の突起部２２ｃ，２１ｃをそれぞれ嵌合し、両
者間にシール材２３を介在させて一体化される。そして
下部シリンダ２２には、下部に至るほど細くなる円錐台
状の孔２２ａが穿設されている。ダイ１１は、下部シリ
ンダ２２の孔２２ａと同じ割り合いで下部に至るほど細
くなる円錐台状に加工され、中心に試料が通過するノズ
ル１１ａが穿設されている。ダイ１１はシリンダ２０の
上部から挿入して下部シリンダ２２の孔２２ａに嵌設さ
れる。また、下部シリンダ２２の下面には、外気による
ダイ１１下部の温度低下を防止するために断熱材２４が
接着され、これによりダイ１１の温度が均一に保たれ
る。なお、３はヒータ、６はピストンである。In FIG. 1, the cylinder 20 has a hole 21 for inserting a sample.
It is composed of an upper cylinder 21 having a formed therein and a lower cylinder 22 to which the die 11 is attached. Each cylinder 21,
Positioning annular holes 21b, 22b and annular protrusions 21c, 22c are formed in the cylinder 22, respectively.
The projecting portions 22c and 21c of 2 and 21 are fitted respectively, and the sealing material 23 is interposed between them to be integrated. The lower cylinder 22 is provided with a truncated cone-shaped hole 22a that becomes thinner toward the lower part. The die 11 is processed into a truncated cone shape that becomes thinner toward the lower part at the same ratio as the hole 22a of the lower cylinder 22, and a nozzle 11a through which the sample passes is formed at the center. The die 11 is inserted from above the cylinder 20 and fitted into the hole 22a of the lower cylinder 22. Further, a heat insulating material 24 is adhered to the lower surface of the lower cylinder 22 in order to prevent the temperature of the lower portion of the die 11 from lowering due to the outside air, whereby the temperature of the die 11 is kept uniform. In addition, 3 is a heater and 6 is a piston.
以上の構成において、シリンダ２０内に試料１を装填し
てヒータ３により一定の温度に加熱保持しつつピストン
６に図示ａ方向の荷重を加えると、溶融した試料１がノ
ズル１１ａから押し出される。このときのピストン６の
下降速度から試料１の流れ性，粘度等のデータを求め
る。また、ノズル１１ａから流出した直後の試料にレー
ザ光を照射してその径を測定し、試料の残留応力などを
求める。ダイ１１を取り外す際、ダイ１１の下面を棒等
で上方に押せば簡単に取り外せる。In the above configuration, when the sample 1 is loaded into the cylinder 20 and the load is applied to the piston 6 in the direction a in the figure while heating and maintaining the heater 3 at a constant temperature, the molten sample 1 is extruded from the nozzle 11a. From the descending speed of the piston 6 at this time, data such as flowability and viscosity of the sample 1 is obtained. Further, the sample immediately after flowing out from the nozzle 11a is irradiated with laser light to measure its diameter, and the residual stress of the sample is obtained. When removing the die 11, it can be easily removed by pushing the lower surface of the die 11 upward with a stick or the like.
以上のように、下部シリンダ２２に設けられた円錐台状
の孔２２ａにほぼ同じ径の同じ傾斜角をもつ円錐台状の
ダイ１１を挿入する構成としたので、ダイ１１が高温に
熱せられていてもダイ１１の取付け，取外しが極めて簡
単に行なえる。また、ピストン６の押圧力が高まるほど
下部シリンダ２２とダイ１１との密着度が高まり、これ
により試料の漏れが防止される。さらに、ダイ１１の下
部を下部シリンダ２２、さらには断熱材２４の下面から
ある程度突出させた構造にすれば、ノズル１１ａから流
出した直後の試料にレーザーを照射してその径を測定す
ることが可能となり、精度の高いデータが得られる。更
にまた、断熱材２４から露出する部分が少なくダイ１１
を所望の温度に安定保持できる。As described above, since the frustoconical die 11 having substantially the same diameter and the same inclination angle is inserted into the frustoconical hole 22a provided in the lower cylinder 22, the die 11 is heated to a high temperature. However, the die 11 can be attached and detached very easily. Further, as the pressing force of the piston 6 increases, the degree of contact between the lower cylinder 22 and the die 11 increases, which prevents leakage of the sample. Furthermore, if the lower part of the die 11 is made to project to a certain extent from the lower cylinder 22 and further from the lower surface of the heat insulating material 24, it is possible to irradiate the sample immediately after flowing out from the nozzle 11a with a laser and measure its diameter. Therefore, highly accurate data can be obtained. Furthermore, the die 11 is less exposed from the heat insulating material 24.
Can be stably maintained at a desired temperature.
なお、本実施例ではダイ１１を円錐台状としたが、三角
錐状や四角錐状、またはその他の多角錐状でもよい。ま
た、シリンダを２分割したが一体シリンダでもよい。Although the die 11 has a truncated cone shape in this embodiment, it may have a triangular pyramid shape, a quadrangular pyramid shape, or another polygonal pyramid shape. Further, although the cylinder is divided into two, it may be an integral cylinder.
Ｇ．考案の効果 本考案は上述のように構成したから、ダイが高温に熱せ
られてもその取付け，取外しが簡単に行なえる。また、
ダイの下部に位置していたダイ押えが不要となり、これ
によりノズルから流出した直後の試料の径をレーザー等
で測定することが可能となる。また、従来のようにダイ
押えを介してダイ４が冷されることが防止れ、ノズルの
壁面を一定の温度に保持できる。G. Effect of the Invention Since the present invention is configured as described above, even if the die is heated to a high temperature, it can be easily attached and detached. Also,
The die presser located at the bottom of the die is not necessary, which makes it possible to measure the diameter of the sample immediately after flowing out from the nozzle with a laser or the like. Further, it is possible to prevent the die 4 from being cooled through the die retainer as in the conventional case, and the wall surface of the nozzle can be maintained at a constant temperature.
さらに、ダイおよびシリンダのダイ嵌合孔を錐状形とし
たので、孔壁面とダイとの間隙に試料が入り込んで固ま
った場合でも、以下の（イ），（ロ）に示す理由からダ
イを容易に取外すことができる。Furthermore, since the die fitting holes of the die and the cylinder have a conical shape, even if the sample enters the gap between the hole wall surface and the die and hardens, the die is It can be easily removed.
（イ）錐状孔壁面とダイとの間隙に入り込んだ試料の殆
どが孔の壁面を伝わって落下するから、上記間隙に残留
する試料は極僅かである。(A) Since most of the sample that has entered the gap between the wall surface of the conical hole and the die falls along the wall surface of the hole, very few samples remain in the gap.
（ロ）錐状孔に嵌設されたダイを下方から押圧したと
き、その押圧力がダイの周面を孔の壁面に沿って摺動さ
せる方向に働くので、固まった試料に剪断力が働いて試
料が剥がれ易くなる。(B) When the die fitted in the conical hole is pressed from below, the pressing force acts in the direction to slide the peripheral surface of the die along the wall surface of the hole, so shearing force acts on the solidified sample. The sample is easily peeled off.
第１図は本考案に係るフローテスタの正面断面図、第２
図は従来のフローテスタの正面断面図である。 ３：ヒータ、６：ピストン １１：ダイ、１１ａ：ノズル ２０：シリンダ、２１：上部シリンダ ２２：下部シリンダ、２４：断熱材FIG. 1 is a front sectional view of a flow tester according to the present invention, and FIG.
The figure is a front sectional view of a conventional flow tester. 3: heater, 6: piston 11: die, 11a: nozzle 20: cylinder, 21: upper cylinder 22: lower cylinder, 24: heat insulating material
Claims (1)
て加熱溶融してピストンで加圧し、ダイに穿設されたノ
ズルから溶融試料を流出せしめるフローテスタにおい
て、前記ダイを下部に至るほど細くなる錐状に形成し、
前記シリンダ下部にダイと相補形の錐状孔を形成し、こ
の錐状孔にダイをシリンダ上部から挿入して嵌設したこ
とを特徴とするフローテスタ。1. A flow tester in which a sample filled in a cylinder is heated and melted by a heater and pressurized by a piston, and a molten sample is caused to flow out from a nozzle formed in a die. Formed into a conical shape,
A flow tester characterized in that a conical hole which is complementary to the die is formed in the lower portion of the cylinder, and the die is inserted and fitted into the conical hole from the upper portion of the cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987117951U JPH065609Y2 (en) | 1987-07-30 | 1987-07-30 | Flow tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987117951U JPH065609Y2 (en) | 1987-07-30 | 1987-07-30 | Flow tester |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6423653U JPS6423653U (en) | 1989-02-08 |
| JPH065609Y2 true JPH065609Y2 (en) | 1994-02-09 |
Family
ID=31361872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987117951U Expired - Lifetime JPH065609Y2 (en) | 1987-07-30 | 1987-07-30 | Flow tester |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH065609Y2 (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS561727Y2 (en) * | 1977-06-10 | 1981-01-16 |
-
1987
- 1987-07-30 JP JP1987117951U patent/JPH065609Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6423653U (en) | 1989-02-08 |
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