KR100264140B1 - Method of making flexible abrasive coated article - Google Patents

Abstract

PURPOSE: A manufacturing method of a polishing tool is provided to form inconsistently regular form and pattern on a fibrous membrane of excellent flexibility by electrodepositing abrasion resistant powder onto the fibrous membrane. CONSTITUTION: A desired pattern is formed by coating masking insulating resin of excellent acid resistance and alkali resistance onto the rear face of a flexible fibrous membrane(3) by silkscreen. The rear face of the fibrous membrane is attached with a stainless panel(1) and dried by air. The stainless panel is impregnated in a plating bath to immerse abrasion resistant powder to an electrodepositing position. The stainless panel and a plating metal panel are connected with an anode and a cathode to flow currents. The abrasion resistant powder and precipitated metal are fixed in the electrodepositing position. Thereafter, the stainless panel is separated from the electrodeposited fibrous membrane. The electrodeposited fibrous membrane is properly cut and attached onto the body of a polishing tool. According to inconsistent formation of the electrodeposited layers on the surface of the fibrous membrane, chips are removed when a workpiece is ground. Therefore, blinding of a polishing tool is prevented and excellent grindability is secured.

Description

Manufacturing method of abrasive tool using pattern electrodeposition in fiber network

The present invention relates to an electrodeposition method for forming abrasion resistant powder on a fibrous network, and in particular, an abrasive tool characterized by forming a discontinuous electrodeposition layer by partially electrodepositing an abrasion resistant powder on a flexible fibrous network to have a certain shape and meaninglessness. It relates to a manufacturing method of.

Generally, electrodeposition refers to a type of electroplating in which colloidal materials such as paints, metal powders, or abrasion resistant powders are suspended in a conductive solution and passed through electricity to deposit colloids on electrodes to cover metal surfaces. In particular, in an abrasive tool that uses ceramic powder or the like as an anti-wear agent to process a workpiece, the wear-resistant agent may not be attached to the cutting edge of the tool or the part contacted with the workpiece for processing, so that metals such as nickel are mixed and electrically bonded. Use the electrodeposition method.

Conventionally, such electrodeposition is performed on a metal surface, so that the electrodeposited surface loses its flexibility and thus cannot be used for polishing operations requiring high flexibility, such as processing complex shapes. Therefore, in order to solve this problem, it is possible to think of a method of electrodeposition on a cloth made of fiber or a metal mesh, but in the case of a cloth made of fiber, electricity does not pass through, so that the electrodeposition is not performed by itself. Electrodeposition was possible, but there was a problem that the plating solution was contaminated due to the cleaning solution penetrating between the metal mesh.

Accordingly, the present invention has been made to solve the above problems of the prior art, an object of the present invention is to provide a method for electrodepositing the wear-resistant powder to have a discontinuously constant shape and pattern on a highly flexible fiber network. .

One aspect of the present invention for achieving the above object is (1) a step of forming a pattern of a desired shape by coating a masking insulating resin excellent in acid resistance and alkali resistance on the back of the fiber network having flexibility by a silk screen method; (2) bonding the back side of the formed fibrous mesh to a stainless plate and bonding it, followed by drying in air for a few minutes; and (3) placing the stainless steel plate bonded to the fibrous network at the bottom of a plating bath containing a plating solution and electrodepositing abrasion resistant powder. After immersing in the site, the stainless plate and the plated metal plate are connected to the negative electrode and the positive electrode respectively to flow the current to fix the wear-resistant powder and the precipitated metal to the electrodeposition site, and (4) the electrodeposition process is completed when the electrodeposition process is completed. Separating the stainless plate from the fiber network, and (5) by appropriately cutting the fiber network in which the electrodeposition layer is formed And a step of adhering to the main body of the grinding tool.

In addition, another aspect of the present invention (1) a step of forming a pattern of a desired shape by coating a masking insulating resin excellent in acid resistance and alkali resistance on the surface of the stainless plate inferior to the plating metal by a silk screen method; 2) bonding the fiber mesh on the stainless plate coated with the insulating resin, and then bonding the fiber net and drying it for a few minutes in the air; and (3) placing the stainless steel plate bonded with the fiber net on the bottom of the plating bath containing the plating solution. Fixing the wear-resistant powder and the precipitated metal to the electrodeposition site by immersing the electrode plate and connecting the stainless steel plate and the plated metal plate to the cathode and the anode, respectively, and flowing a current, and (4) the electrodeposition process is completed. Separating the stainless plate from the electrodeposited fiber screen, and (5) applying the fiber screen on which the electrodeposition layer is formed. It is characterized by consisting of a step of cutting and bonding to the main body of the abrasive tool.

Other objects and advantages of the invention will be described below and will be appreciated by the practice of the invention. Furthermore, the objects and advantages of the present invention can be realized by means and combinations indicated in the appended claims.

1 (a) to 1 (c) show step by step a process for producing an abrasive tool by forming an electrodeposition layer on a fiber network.

* Explanation of symbols for main parts of the drawings

1: stainless steel plate 2: silicone sealant

3: fiber network 4: diamond powder

5: not plated 6: adhesive

7: Tool body

Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings. Here, FIGS. 1 (a) to 1 (c) show step by step a process of manufacturing an abrasive tool by forming an electrodeposition layer on a fiber network.

Example 1

First, the fiber network 3 of about 100-500 mesh is prepared as an example which is not limited. The site to be electrodeposited is set on the back side of the prepared fiber mesh 3.

It will be possible to design certain shapes and patterns in setting the electrodeposition area. When the design of the electrodeposition part having a certain shape and pattern is completed, discontinuousness is applied to the back side of the fiber network by coating an insulating resin which is less reactive with acid and alkali resistant solution by the silk screen method on the parts other than the electrodeposition part as shown in Fig. 1 (a). An insulating coating layer is formed. Here, the silicone sealant 2 is preferable as the insulating resin having little reaction with the acid and alkali resistant solution. The silicone sealant 2 is a masking material excellent in acid resistance and alkali resistance having an insulating property after being reacted and hardened in air.

The fibrous mesh 3 on which the discontinuous insulating coating layer is formed is brought into close contact with the thin stainless plate 1 and bonded by the self adhesive force of the silicone sealant 2. In this case, the stainless plate 1 is better in adhesion with a plating metal such as nickel or copper. When the bonding of the fibrous net 3 and the stainless plate 1 is completed, a laminated plate having a discontinuous insulating layer interposed between the fibrous net and the stainless plate is formed as shown in FIG. 1 (a). The laminate is left to stand in air for several minutes and dried to solidify the silicone sealant 2 to increase the bonding strength.

When the joining of the fiber mesh 3 and the stainless plate 1 is completed, the laminated board of FIG. 1 (a) is immersed in the bottom surface of the plating tank of the conventional plating apparatus which has the following conditions. Here, the conventional plating apparatus refers to an apparatus including a plating bath for accommodating an electrolyte solution, a plated material metal plate (anode), a current regulator anode line and a cathode line. In the present invention, a mixture of nickel sulfate and nickel chloride is used as the electrolyte for electrodeposition. In addition, the plating material metal plate is used as an anode during electroplating, and nickel is generally used a lot, and in the case of the present invention, it is preferable to use nickel.

Electrolytic conditions for electrodeposition of the present invention is preferably a temperature of 40-50 ℃, PH 4-4.5 degree, current density of 1A / dm ² . In addition, the time for electrodeposition is not determined uniformly but is appropriately selected depending on the shape and pattern of the metal plate to be electrodeposited and the size of the wear-resistant powder to be electrodeposited.

The red worm plate is immersed in the plating bath bottom of the prepared plating apparatus, and a current is applied by connecting a positive electrode to the plated metal plate and a negative electrode to the stainless plate 1. As the current is applied, the precipitated metal is plated at the electrodeposition sites other than the coating layer on which the silicon sealant 2 is coated, thereby forming the base plating 5 as shown in FIG. 1 (b). Such underplating is a pretreatment step for forming a wear resistant electrodeposition layer to prevent excessive formation of an electrodeposition layer to reduce costs and improve electrodeposition efficiency.

The diamond powder 4 is immersed in the electrodeposition portion on which the base plating 5 is formed. Here, the diamond powder 4 may be replaced with CBN or ceramic powder, which is a wear resistant powder of the same property. After the diamond powder 4 completely sinks to the stainless plate 1 at the bottom of the plating bath, the anode is connected to the plated metal plate (nickel plate) and the cathode is connected to the stainless plate 1 to apply a current. When current is applied to the plating bath, an electrodeposition action occurs to form a discontinuous electrodeposition layer as shown in FIG. 1 (b) in which nickel and diamond powders are firmly bonded to the upper plating 5.

In this way, by removing the stainless plate 1 from the laminate of FIG. 1 (b) in which the electrodeposition layer is discontinuously, the fiber network 3 on which the electrodeposition layer is formed is separated. After the electrodeposited fibrous net is cut into the desired shape and then bonded to the outer body 7 of a tool such as an abrasive plate or an abrasive belt using an adhesive 6, an abrasive tool as shown in FIG. 1 (c) is manufactured.

The main body 7 of the tool is made of a material such as urethane or plastic to develop a light and cheap tool.

In addition, according to the manufacturing method of the present embodiment by forming a variety of electrodepositions, such as a polishing pad or belt having a equilateral shape on the surface of the fiber network it is possible to develop a new electrode tool of the desired shape according to the type of workpiece.

Example 2

First, the fiber network 3 of about 100-500 mesh is prepared as an example which is not limited.

After preparing a stainless plate 1 having poor adhesion to a plated metal such as nickel or copper, a portion to be electrodeposited is set on the surface of the stainless plate 1.

It would be possible to design certain shapes and intentions in setting up the entire area. When the design of the electrodeposition region having a predetermined shape and pattern is completed, the resin other than the electrodeposition region set on the stainless plate 1 is coated by the silk screen method with less acid and alkali-resistant solution. Here, the silicone sealant 2 is preferable as the resin having less reaction with the acid and alkali resistant solutions. The silicone sealant 2 is a masking material excellent in acid resistance and alkali resistance having insulation after reacting and hardening in air.

When the silk screen is completed, the prepared fiber mesh 3 is closely adhered on the stainless plate 1 coated with the silicone sealant 2 and bonded by the self-adhesive force of the silicone sealant 2. When the bonding of the fiber mesh 3 and the stainless plate 1 is completed, a laminated plate as shown in FIG. 1 (a) is formed. The laminate is left in air for several minutes and dried to solidify the silicone sealant 2. After the process of the inspection is the same as in Example 1.

The above-described embodiments are not limited to the scope of the present invention, and various modifications or changes are possible within the equivalent scope of the present invention from the technical spirit of the present invention and the claims to be described below.

In the abrasive tool of the present invention, since the electrodeposition layer is discontinuously formed on the surface of the fiber network, the chips generated during the grinding of the workpiece can easily escape to the outside, thereby preventing the clogging phenomenon occurring in the general abrasive tool, thereby ensuring excellent cutting properties. can do.

In addition, in general electrodeposition, the main body of the tool to be electrodeposited may be heavy and expensive, but in the case of using a fiber network as in the present invention, it is possible to develop a light and cheap tool by manufacturing the main body of the tool with urethane or plastic. .

In addition, the present invention can be electrodeposition in the form of a pattern on a highly flexible fiber network can be used to develop a polishing tool that can be processed in a complex shape using the properties of the fiber mesh that can be bent freely.

Claims (7)

(1) a first step of forming a discontinuous insulating coating layer of a desired form by coating a masking insulating resin on the back of the flexible fiber network by a silk screen method; (2) Bonding the fiber network on the stainless substrate using the insulating coating layer as an adhesive layer Combining and drying in air for several minutes; (3) a third step of forming a wear-resistant electrodeposition layer by placing a stainless steel plate bonded with a fiber network on the bottom of a plating bath containing a plating solution, immersing the wear-resistant powder in an electrodeposition region, and then flowing an electric current through the stainless plate and the metal plated material; ; (4) a fourth step of separating the stainless plate from the fiber network in which the electrodeposition layer is formed when the electrodeposition process of (3) is completed; And (5) a fifth step of adhering the electrodeposited fiber network from which the stainless plate is separated and removed to the main body of the abrasive tool. (1) a first step of forming a discontinuous insulating coating layer of a desired form by coating a masking insulating resin on the surface of a stainless substrate having low adhesion with a plating metal by a silk screen method; (2) a second step of closely bonding the fiber network on the stainless substrate having the insulation coating layer formed thereon and then drying it for a few minutes in air; (3) a third step of forming a wear-resistant electrodeposition layer by placing a stainless steel plate bonded to a fiber network at the bottom of a plating bath containing a plating solution, immersing the wear-resistant powder in an electrodeposition region, and then flowing an electric current through the stainless plate and the metal plated material; ; (4) a fourth step of separating and removing the stainless plate from the fiber network in which the electrodeposition layer is formed when the electrodeposition process of (3) is completed; And (5) a fifth step of adhering the electrodeposited fiber network from which the stainless plate is separated and removed to the main body of the abrasive tool. The method for manufacturing an abrasive tool according to claim 1 or 2, wherein the masking insulating resin is a silicone sealant. The method of claim 3, wherein the fiber mesh and the stainless plate are bonded by the self-adhesive force of the silicone sealant. The method of claim 1, wherein the wear resistant powder is any one of diamond, CBN, and ceramic powder. The method for manufacturing an abrasive tool according to claim 1 or 2, wherein the main body of the abrasive tool is any one of urethane and plastic. The method for manufacturing an abrasive tool according to claim 1 or 2, wherein a base plating is formed on the electrodeposition part as a pretreatment step for the electrodeposition step of the third step.

Images