TW201325780A - Diamond nickel-cobalt jigsaw and production method - Google Patents

Abstract

A diamond nickel-cobalt jigsaw comprises a piano wire, an empty plating layer located on the surface of the piano wire, a plurality of diamond abrasive particles distributed on the surface of the empty plating layer, and a thickening layer located between the surface of the empty plating layer and the diamond abrasive particles, and maintaining the diamond abrasive particles exposed to the outside. Accordingly, a diamond nickel cobalt jigsaw having low process costs, small wire diameter, low consumable rate, and good heat resistance and abrasion resistance can be obtained by the invention.

Description

Diamond nickel-cobalt wire saw and manufacturing method

The present invention relates to a diamond nickel-cobalt wire saw, and more particularly to a nickel-cobalt wire saw having a 70 wt% nickel-30 wt% cobalt-bonded diamond.

Commonly used wire substrates include spring steel wire, stainless steel wire, and piano wire. The spring steel wire material has high strength, but the ratio is large, and the vibration has a great influence on the cutting process, which makes the cutting plane surface shape precision difficult to control, and is easy to be cold hardened. The stainless steel wire and piano wire have high tensile strength, good wire softness, and good performance in abrasion resistance and fatigue life. However, the piano wire has the same excellent flexing resistance and fatigue resistence as the stainless steel wire.

Spring steel wire, stainless steel wire and piano wire are formed by a series of mechanical processing of steel. Before the plating or electroforming, the surface is derusted first. Therefore, the steel can be activated before electroplating or electroforming. However, since the piano wire is easily oxidized when it is temporarily exposed to the air, and the surface is formed with a loose black oxide film, this disadvantage makes the piano wire impossible to perform continuous plating in the plating apparatus, which is a great disadvantage.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a diamond nickel-cobalt wire saw which allows a piano wire to pass through a nickel-cobalt alloy electroforming solution to uniformly distribute diamond abrasive grains on a piano wire.

A second object of the present invention is to provide a diamond nickel-cobalt wire saw capable of continuously electroplating a piano wire in an electroplating apparatus.

Another object of the present invention is to provide a diamond nickel-cobalt wire saw having a low process cost, a small wire diameter, a low consumable ratio, and good heat resistance and wear resistance.

A diamond nickel-cobalt wire saw capable of achieving the above object includes: a piano wire; an empty plating layer on the surface of the piano wire; a plurality of diamond abrasive grains distributed on the surface of the empty plating layer; a thickened layer, It is located between the surface of the empty coating and the diamond abrasive grains, and the thickening layer keeps the diamond abrasive grains exposed.

The method for producing the above-mentioned diamond nickel-cobalt wire saw includes:

(A) providing a piano wire;

(B) pickling and activating the piano wire, and then washing to remove impurities on the surface of the piano wire;

(C) forming an empty plating on the surface of the piano wire by placing the piano wire into the electroforming solution of the nickel sulfonate and the cobalt sulfonate of the deposited diamond abrasive;

(D) preliminary consolidation of the diamond abrasive particles in the air plating;

(E) further forming a thickened layer in the electroforming solution of the nickel sulfonate and the cobalt sulfonate deposited on the piano wire which is fixed on the empty coating by the diamond abrasive grains. For one-half to two-thirds of the diamond abrasive particle size, the diamond abrasive particles are attached to the piano wire in the thickened layer.

Referring to FIG. 1, the diamond nickel-cobalt wire saw provided by the present invention mainly comprises:

A piano line 1 has high tensile strength, good flexibility, and good performance in wear resistance and fatigue life.

An empty plating layer 2 is located on the surface of the piano wire 1 and is composed of nickel metal ions and cobalt metal ions; the empty plating layer 2 is mainly for bringing the plating layer into full contact with the piano wire 1 to enhance the bonding force.

A plurality of diamond abrasive grains 3 are distributed on the surface of the air plating layer 2; the diamond abrasive grains 3 have wear resistance characteristics and are initially plated on the air plating layer 2.

A thickened layer 4 is located between the surface of the empty plating layer 2 and the diamond abrasive grains 3, and is composed of nickel metal ions and cobalt metal ions, and the thickened layer 4 keeps the diamond abrasive grains 3 exposed.

Referring to FIG. 2, the diamond nickel cobalt wire saw manufacturing method comprises the following steps:

(A) providing a piano wire 1 (piano wire);

(B) pickling activates the piano wire 1, and then washing to remove impurities on the surface of the piano wire 1;

(C) Piano wire 1 is placed in the electroforming liquid upper layer 51 of the deposited nickel oxide sulfonate of the diamond abrasive grain 3 and the cobalt sulfonate to form an empty plating layer 2 (70 wt% nickel-30 wt% cobalt empty plating layer 2) On the surface of the piano line 1;

(D) moving the piano wire 1 to the electroforming liquid lower layer 52, so that the diamond abrasive particles 3 are initially consolidated in the empty plating layer 2;

(E) moving the piano wire 1 to the upper layer 51 of the electroforming liquid to form a thickened layer 4 (70 wt% nickel--30 wt% thick layer 4 of cobalt) between the diamond abrasive grains 3 and the void plating layer 2, The thickness of the thickened layer 4 is from one-half to two-thirds of the particle size of the diamond abrasive grain 3, and the diamond abrasive grains 3 are attached to the piano wire 1 to the thickened layer 4.

Referring to FIG. 3, the steps of the piano wire 1 before applying electroforming are as follows:

(1) pickling activates the piano wire 1, which can help the empty plating layer 2 (also the electroforming starting layer) to be tightly bonded to the thickened layer 4 (also an electroformed metal);

(2) Re-washing removes impurities on the surface of the piano wire 1, and the purpose of pure water rinsing is to remove impurities on the surface of the piano wire 1 and to remove other residual chemicals. The most important thing is that the piano line 1 after the pre-treatment should immediately enter the electroforming slot 5 to avoid oxidation of the piano line 1.

(3) Next, a nickel-cobalt alloy electroforming solution comprising diamond abrasive grains 3, Nickel Sulfamate (Ni(NH ₂ SO ₃ ) ₂ ), cobalt sulfamate (Cobal Sulfamate, Co) is provided. (NH ₂ SO ₃ ) ₂ ), boric acid, nickel chloride, hydrophilic additives and water. The pickled and washed piano wire 1 and a nickel-cobalt alloy are immersed in an electroforming solution to which a nickel sulfonate and a cobalt sulfonate are added (to form a positively charged nickel metal ion (Ni ^{2 ) +} ) electroforming in electroforming tank 5 with cobalt metal ions (Co ²⁺ );

(4) Thereafter, the piano wire 1 is placed on the electroforming liquid upper layer 51 of the electroforming tank 5, and the piano wire 1 is connected to the negative electrode 6 and the nickel metal is connected to the positive electrode 7, and then With current. At this time, the nickel metal will begin to dissociate the nickel ions so that the nickel ions in the solution are sufficient, so that nickel metal ions and cobalt metal ions of different potentials in the electroforming liquid are reached, and the piano wire 1 connected to the negative electrode is moved, and deposited on the piano wire 1 An air plating layer 2 of 70 wt% nickel-30 wt% cobalt is formed on the piano wire 1. Where wt is expressed as the weight percent of the metal ion contained in the unit weight of the solution.

(5) Next, the piano wire 1 is moved to the electroforming liquid lower layer 52 to provide a plurality of diamond abrasive grains 3 which are initially consolidated on the empty plating layer 2. Each of the diamond abrasive grains 3 is a micro-nano-grade high wear-resistant particle, and the material thereof is a diamond powder;

(6) At this time, the piano wire 1 covering the empty plating layer 2 is moved to the lower electroforming liquid layer 52, and the diamond abrasive grains 3 are added to the empty plating layer 2 for composite electroforming. However, depending on the electroforming material required, electroforming Liquid formulations and methods of operation are also different. Taking electroforming nickel-cobalt as an example, the electroforming solution of electroforming tank 5 uses nickel sulfamate and cobalt sulfonate, and the temperature is about 50 ° C, and a constant current source, a constant voltage current source or a pulse current source is used. . The deposition process of the diamond abrasive grain 3 of the invention is performed by ultrasonic vibration so that the diamond powder can be uniformly and uniformly dispersed in the electroforming liquid by diffusion and convection, and the purpose of the ultrasonic oscillation is to avoid the diamond powder knot. A block phenomenon occurs. The electroforming tank 5 of the present invention performs the composite electroforming, that is, the length of the working time to achieve the optimum control of the deposition rate of the diamond abrasive grains 3.

(7) Next, the piano wire 1 consolidated with the diamond abrasive grains 3 on the empty plating layer 2 is moved to the upper layer 51 of the electroforming liquid, so that the gap between the diamond abrasive grains 3 and the empty plating layer 2 forms a thickened layer 4, that is, The nickel metal is connected to the positive electrode 7, and the piano wire 1 is connected to the negative electrode 6, and a current is applied to both of them. At this point, the nickel metal will begin to dissociate the nickel metal ions so that the nickel ions in the solution are sufficient to achieve nickel metal ions and cobalt metal ions of different potentials in the electroforming solution, together with the nickel metal ions and cobalt contained in the electroforming solution. The metal ions move toward the gap between the diamond abrasive grains 3 and the empty plating layer 2 of the piano wire 1 connected to the negative electrode, and are deposited in the gap between the diamond abrasive grains 3 and the empty plating layer 2; when these nickel and cobalt metal ions receive the electrons When formed, it will form nickel or cobalt metal. Finally, the nickel and cobalt metal are deposited to a suitable thickness to form a thickened layer 4 of nickel-cobalt metal.

The diamond nickel-cobalt wire saw provided by the invention has the following advantages when compared with other conventional techniques:

1. The piano wire passes through the nickel-cobalt alloy electroforming solution, so that the diamond abrasive grain is covered with a diamond nickel-cobalt wire saw with a better covering force on the piano wire.

2. The electroplating equipment can continuously electroplate the piano wire to reduce the cost.

3. The process cost is low, the wire diameter is small, the consumable rate is low, and the heat resistance and wear resistance are good.

The detailed description of the preferred embodiments of the present invention is intended to be limited to the scope of the invention, and is not intended to limit the scope of the invention. The patent scope of this case.

In summary, this case is not only innovative in terms of space type, but also can enhance the above-mentioned multiple functions compared with the customary items. It should fully meet the statutory invention patent requirements of novelty and progressiveness, and apply for it according to law. This invention patent application, in order to invent invention, to the sense of virtue.

1. . . Piano line

2. . . Empty plating

3. . . Diamond abrasive

4. . . Thickened layer

5. . . Electroforming groove

51. . . Upper layer of electroforming solution

52. . . Electroforming fluid lower layer

6. . . Negative electrode

7. . . Positive electrode

Figure 1 is a schematic view showing the structure of a diamond nickel-cobalt wire saw of the present invention;

Figure 2 is a schematic view of the diamond nickel-cobalt wire saw manufacturing apparatus;

Figure 3 is a block diagram showing the production process of the diamond nickel-cobalt wire saw.

1. . . Piano line

2. . . Empty plating

3. . . Diamond abrasive

4. . . Thickened layer

Claims (4)

A method for manufacturing a diamond nickel-cobalt wire saw, comprising the steps of: (A) providing a piano wire; (B) pickling and activating the piano wire, and then washing to remove impurities on the surface of the piano wire; (C) placing the piano wire into the deposited diamond mill Forming an empty plating layer on the surface of the piano wire in the electroforming solution of the granular nickel sulfonate and cobalt sulfonate; (D) initially fixing the diamond abrasive grains in the air plating layer; (E) grinding the diamond The piano wire entangled on the empty plating layer is placed in an electroforming solution of nickel aurethane sulfonate and cobalt sulfonate deposited with diamond abrasive grains to form a thick layer, which is a diamond abrasive grain size. One-half to two-thirds of the diamond abrasive particles are attached to the piano wire in the thickened layer. The diamond nickel-cobalt wire saw according to claim 1 , wherein the electroforming liquid has a temperature of about 50 ° C, a constant current source, a constant voltage current source or a pulse current source. The diamond nickel-cobalt wire saw according to claim 1 , wherein the diamond abrasive grains are further ultrasonically oscillated such that the diamond abrasive grains are sufficiently uniformly dispersed in the electroforming liquid by diffusion and convection. A diamond nickel-cobalt wire saw, comprising: a piano wire; an empty plating layer on the surface of the piano wire, which is composed of nickel metal ions and cobalt metal ions; a plurality of diamond abrasive grains are distributed on the surface of the empty plating layer; A thickened layer is disposed between the surface of the void coating and the diamond abrasive particles, and is composed of nickel metal ions and cobalt metal ions, and the thickened layer keeps the diamond abrasive grains exposed.