TWI535536B - Buffering grinding wheel having buffering structure and manufacturing method thereof - Google Patents

Description

Buffered vermiculite with buffer structure and manufacturing method thereof

The present invention relates to the improvement of a vermiculite, and more particularly to a buffered vermiculite having a rounded elastomer inside the vermiculite body.

Generally, in the production of electrolytic copper foil, copper is electroplated on the surface of a cathode roller to form a copper foil. The cathode roller is usually a first grade pure titanium, and in order to prepare a good quality copper foil, the surface roughness of the cathode roller needs to be maintained. Within a certain range. In the manufacturing process, when the surface of the cathode roller is turned, in order to achieve the required surface roughness, it is often necessary to polish the surface; and in the process of copper foil production, the surface of the cathode roller is often caused by electrochemical corrosion. The reason is that oxidation occurs to form a thin layer of titanium oxide, which is a non-conductive substance. A trace amount of titanium oxide causes the crystal structure of the formed copper foil to be loose, which may cause uneven oxidation spots on the surface of the copper foil. It has a great influence on the intrinsic properties and appearance quality of copper foil. Therefore, the cathode roller often needs to be removed by re-polishing to restore the surface roughness required for producing high-quality copper foil, and then can be used again.

Nowadays, a polyvinyl acetal resin or a phenolic resin plus a phenolic resin binder is used to form a vermiculite (also known as a polishing wheel) for polishing the surface of the cathode roller, and the surface roughness required for recovery is started. degree.

The inventor of the present invention found that the meteorite used today is made of a hard material. Therefore, when the rock is used to polish the roller, if the surrounding environment is vibrated due to loosening of the screw after the vehicle is driven or the motor is operated for a long time, it is easy to be buffered. The roller is thus scratched.

Therefore, in order to solve the above problem, the meteorite can improve the vibration tolerance. One of the objects of the present invention is to provide a buffered vermiculite comprising: a hollow annular gasket; and a wheel-shaped vermiculite body disposed outside the hollow annular gasket. Wherein, the wheel-shaped vermiculite body has a round elastic body inside.

In a preferred embodiment, the inner diameter of the wheel-shaped elastic body and the inner diameter of the wheel-shaped vermiculite body are from 1 to 1.8.

In another preferred embodiment, the inner diameter of the wheel-shaped elastic body and the inner diameter of the wheel-shaped vermiculite body are 1.5.

In another preferred embodiment, the wheeled elastomer occupies about 1 to 50% of the wheel-shaped vermiculite body.

In another preferred embodiment, the wheel-shaped elastomer occupies about 5 to 40% of the body of the gangue.

In another preferred embodiment, the wheeled elastomer has a hardness of 15 to 35 degrees (Shore A).

In another preferred embodiment, the wheeled elastomer has a hardness of 20 degrees (Shore hardness).

In another preferred embodiment, the wheeled elastomeric system is comprised of a hafnium oxide, a polyurethane (PU), a vinyl acetate copolymer (EVA, E/VAC), and/or a rubber.

Another object of the present invention is to provide a buffered vermiculite as described above. The method comprises the following steps: (a) cutting a ring-shaped groove from one side of a meteorite-shaped vermiculite body, the annular groove depth being less than or equal to a half thickness of the wheel-shaped vermiculite body; (b) a liquid elasticity The body is injected into the annular groove to harden the elastic body; (c) the other side of the wheel-shaped vermiculite body is cut corresponding to the annular groove, and the liquid elastic body is injected to harden the elastic body The elastomers on both sides are in communication.

Another object of the present invention is to provide a use of the buffered vermiculite as described above for polishing a roller.

The buffered vermiculite according to the above invention has a wheel-shaped elastic body inside the wheel-shaped vermiculite body to improve the cushioning performance. Therefore, it is possible to solve the problem that the conventional vermiculite is susceptible to vibration of the surrounding environment when the surface of the roller is ground, resulting in scratching or uneven grinding of the roller; using the buffered vermiculite of the present invention for grinding the surface of the roller can slow down the grinding of the roller by the vermiculite A situation in which the roller is scratched or unevenly ground due to the shock generated by the sudden impact force.

100‧‧‧buffered meteorite

10‧‧‧Rotary meteorite body

20‧‧‧Rolled elastomer

30‧‧‧Hollow annular gasket

A‧‧‧ Wheeled elastomer inner diameter

B‧‧‧Wheeled vermiculite body inner diameter

C‧‧‧Rod elastic width

D‧‧‧Wheeled vermiculite body width

Figure 1 is a schematic view of a buffered vermiculite of the present invention.

The term "a" or "an" as used in this document may be used in the scope of the patent application or in the specification, but may also mean one or more or at least one.

Please refer to FIG. 1 , which is a schematic view of the appearance of the buffered vermiculite 100 of the present invention, as shown in the figure: the buffered meteorite of the present invention.

An object of the present invention is to provide a buffered vermiculite 100 comprising: a hollow annular gasket 30; and a wheeled vermiculite body 10 disposed outside the hollow annular gasket 30, The wheel-shaped vermiculite body 10 has a wheel-shaped elastic body 20 inside. As can be seen from the figure, the hollow annular gasket 30, the wheel-shaped vermiculite body 10 and the wheel-shaped elastic body 20 are all circular and have the same center (ie, the three exhibit concentric circles of different radii).

According to the above buffered vermiculite 100, wherein the material of the hollow annular gasket 30 is not Restricted, it can be a general-purpose material, such as stainless steel, aluminum, rubber, and other metals or plastics.

According to the buffer meteorite 100 described above, wherein the material of the wheel-shaped vermiculite body 10 is It is not limited, and it is conventionally possible to use the material of the wheel-shaped vermiculite body 10, preferably but not limited to polyvinyl alcohol (PVA) resin or phenol resin plus a binder thereof.

According to the above buffered vermiculite 100, wherein the wheeled elastic body 20 is used as a kind The buffer material can greatly reduce the degree of scratching or uneven grinding of the abrasive (such as the roller) when the vermiculite is rubbed on the surface of the roller, and the material is preferably but not limited to the oxygen tree. Ester, polyurethane (PU), vinyl acetate copolymer (EVA, E/VAC) and/or rubber have elasticity as a buffering substance.

According to the above buffered vermiculite 100, wherein the inner diameter of the wheel-shaped elastic body 20 1, A shows a ratio of the inner diameter of the wheel-shaped vermiculite body 10 (as shown in FIG. 1, B) is preferably from 1 to 1.8, more preferably 1.5, and the ratio is defined as the inner edge of the wheel-shaped elastic body 20. The diameter / the diameter of the inner edge of the wheel-shaped vermiculite body 10; if the ratio is larger, the closer the wheel-shaped elastic body 20 is to the outer side of the wheel-shaped vermiculite body 10, the ratio is too large, the wheel-shaped elastic body 20 is too close to the wheel-shaped vermiculite body On the outer side of the 10, the grinding life of the buffered vermiculite 100 is lowered (the grinding life represents that the wheel-shaped vermiculite body 10 is initial from the start of grinding, and when the wheel-shaped vermiculite body 10 is worn to hit the inner wheel-shaped elastic body 20 due to the grinding loss, When it is not possible to grind).

According to the above buffered vermiculite 100, wherein the wheeled elastic body 20 occupies a wheeled vermiculite The proportion of the body 10 is preferably from about 1 to 50%, more preferably from 5 to 40%, and the ratio is defined as (the width of the wheel-shaped elastic body 20 (as shown in Fig. 1, C) / the width of the wheel-shaped vermiculite body 10 (as shown in the figure) 1, D is shown)) * 100%; if the ratio of the wheel-shaped elastic body 20 to the wheel-shaped vermiculite body 10 is too small, the buffering effect cannot be exerted; if the wheel-shaped elastic body 20 accounts for the excessive proportion of the wheel-shaped vermiculite body 10, the buffer is reduced. Vermiculite 100 has a reduced grinding life.

According to the above buffered vermiculite 100, wherein the hardness of the wheel-shaped elastic body 20 is good However, it is not limited to 15 to 35 degrees, more preferably 20 degrees (Shore A); the preferred hardness range of the wheeled elastic body 20 is the scraping of the object to be polished by the buffered vermiculite. The number of injuries (or the degree of uneven grinding) is defined.

Method for producing buffered vermiculite of the present invention

Another object of the present invention is to provide a method for manufacturing a buffered vermiculite 100, comprising: (a) cutting one side of a vermiculite-shaped vermiculite body 10 into a ring-shaped groove having a depth less than or equal to the The wheel-shaped vermiculite body 10 has a half thickness; (b) injects a liquid elastomer into the annular groove to harden the elastomer; (c) the other side of the wheel-shaped vermiculite body 10 corresponds to the annular groove The groove is cut and injected into the liquid elastomer to cause the elastomer to harden the elastomer on both sides to form a wheel-shaped elastic body 20.

In the above method, the meteorite used is not limited, and any conventional meteorite may be used.

According to the above method for manufacturing the buffered vermiculite 100, wherein the step (a) cuts a ring-shaped groove on one side of the wheel-shaped vermiculite, the cutting position is preferably the inner diameter of the annular groove and the wheel-shaped vermiculite body 10 The ratio of the inner diameter is from 1 to 1.8, more preferably 1.5, and the ratio is defined as the diameter of the inner edge of the annular groove / the diameter of the inner edge of the vermiculite body 10; wherein the annular groove occupies the wheeled vermiculite The proportion of the body 10 is preferably from about 1 to 50%, more preferably from 5 to 40%, and the ratio is defined as (annular groove/rotor body 10 width) *100%.

According to the above method for manufacturing the buffered vermiculite 100, wherein the annular groove is cut into one side of the vermiculite to fill the liquid elastomer solution, so the depth is preferably but not limited to one and a half of the wheeled vermiculite body 10. The thickness, if the depth is too deep, may cause the wheel-shaped vermiculite body 10 to collapse.

The buffered vermiculite of the invention is used for grinding a roller

It is an object of the present invention to provide a buffered vermiculite 100 for use in grinding a roller.

The above-mentioned roller can be a roller for various purposes, but is preferably used for the roller used for the preparation of the electrolytic copper foil. The electrolytic copper foil is produced by dissolving the copper raw material in the electrolytic device (in the electrolytic cell) for high-density current. Electrolysis is carried out by analyzing and adhering copper in the plating solution to the surface (cathode) of the large-sized rotating roller. The thickness of the attached copper foil is increased in the rotation of the roller, and after reaching the predetermined thickness, it is sequentially wound onto the roller to become a product. In the process of electroplating, the surface of the cathode roller often generates an oxidation layer due to oxidation by electrochemical corrosion or the like, and the oxide layer (usually titanium oxide) is a non-conductive substance, which causes the formed copper foil crystal. The looseness of the structure causes severe oxidized spots on the surface of the copper foil, which has a great influence on the intrinsic properties and appearance quality of the copper foil. Therefore, the cathode roller can be reused by removing the surface oxide layer by re-polishing the buffered vermiculite 100 of the present invention and returning it to the surface roughness required for producing a high-quality copper foil.

The roller described above may be, but not limited to, a titanium alloy, a lead, and a stainless steel material, and is preferably, but not limited to, a copper foil manufacturing machine for a printed circuit or a lithium battery.

The present invention will be described in detail in the following embodiments, but the embodiments are merely illustrative. The purpose is not intended to limit the scope of the invention.

Example

Example 1

Please refer to Table 1 for explanation.

Take a commercial product meteorite (Japan Special Research Co., Ltd., model PBW 1-8) using a tungsten steel forming knife with a width of 4.5 mm on one side of the vermiculite, at a distance from the center of the vermiculite to the inner diameter of the elastic body of Table 1, with a 50 rpm lathe Cut a 4.5mm groove, the depth is controlled at half the depth of the vermiculite (25mm), then inject the silicone (Shinjuku SEALANT N) into the groove, scrape it with a spatula, and let it stand at 25 °C for 72 hours. The oxy-resin is hardened, and then grooves are formed on the opposite side, and the epoxy resin is injected to harden and the both sides of the oxirane resin are connected. The electroplating roller is hoisted in the grinding zone, the rotation speed is set at 1 rpm, and the appropriate water is continuously sprayed on the surface, and then the grinding stone is placed on the rotating device, the surface of the vermiculite is placed on the surface of the electroplating roller, the pressure is set to 1.0 kg/cm ² , and the rotation speed is set at 400 rpm. The traverse grinding was carried out at a speed of 50 mm/min for a total of 60 minutes to observe the scratching of the surface of the roller. Among them, the number of scratches is defined as the pattern produced by uneven grinding.

Compared with the current vermiculite of the comparative example, the number of scratches caused by the buffered vermiculite of the present invention on the roller is remarkably reduced.

Summarizing the above description, the structural improvement of the meteorite with the buffer structure of the present invention is to avoid the problem that the grinding wheel is scratched due to the external environment vibration caused by the meteorite in the grinding wheel, so that the polishing operation efficiency is improved. And the quality can be improved, solving the problem of structural problems and missing.

The above examples should not be construed as limiting the invention excessively. Modifications and variations of the embodiments discussed herein may be made without departing from the spirit and scope of the invention, and still fall within the scope of the invention.

100‧‧‧buffered meteorite

10‧‧‧Rotary meteorite body

20‧‧‧Rolled elastomer

30‧‧‧Hollow annular gasket

A‧‧‧ Wheeled elastomer inner diameter

B‧‧‧Wheeled vermiculite body inner diameter

C‧‧‧Rod elastic width

D‧‧‧Wheeled vermiculite body width

Claims (9)

A buffered vermiculite comprising: a hollow annular gasket; and a wheeled vermiculite body disposed outside the hollow annular gasket, wherein the wheeled vermiculite body has a wheel-shaped elastic body therein, wherein the wheel-shaped elastic body The ratio of the inner diameter to the inner diameter of the wheel-shaped vermiculite body is 1.5 to 1.8. The buffered vermiculite of claim 1, wherein the inner diameter of the wheel-shaped elastic body and the inner diameter of the wheel-shaped vermiculite body are 1.5. The buffered vermiculite of claim 1, wherein the width of the wheel-shaped elastic body in the diametrical direction is about 1 to 50% of the width of the chondrite body in the diameter direction. The buffered vermiculite according to claim 1, wherein a ratio of a diameter of the wheel-shaped elastic body in a diameter direction to a width in a diameter direction of the chosonite body is about 5 to 40%. The buffered vermiculite of claim 1, wherein the wheeled elastomer has a hardness of 15 to 35 degrees (Shore A). The buffered vermiculite of claim 5, wherein the wheeled elastomer has a hardness of 20 degrees (Shore hardness). The buffered vermiculite of claim 1, wherein the wheeled elastic system is composed of a siloxane resin, a polyurethane (PU), a vinyl acetate copolymer (EVA, E/VAC), and/or a rubber. A method for manufacturing a buffered vermiculite according to claim 1, comprising: (a) cutting one side of a vermiculite-shaped vermiculite body to form a ring-shaped groove having a depth less than or equal to half of the wheel-shaped vermiculite body a thickness; (b) injecting a liquid elastomer into the annular groove to harden the elastomer; (c) cutting the other side of the wheel-shaped vermiculite body corresponding to the annular groove, and injecting the same Liquid The elastomer is such that the elastomer hardens the elastomer on both sides to communicate. A use of the buffered vermiculite of claim 1 for grinding a roller.