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A kind of diamond grinding tool and its production process

A production process and diamond technology, applied in metal processing equipment, wheels and abrasives of flexible working parts, etc., can solve the problems of complicated disassembly and assembly of graphite molds, scrapped diamond abrasive tools, and falling off of diamond segments. Good toughness and wear resistance, no need to disassemble, prevent cracking

Active Publication Date: 2019-02-01
泉州金山石材工具科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing diamond abrasive tools usually consist of a diamond segment as a cutter head and a matrix for fixing the diamond segment. Due to its excellent mechanical properties, insulation, cohesiveness and forming process properties, phenolic resin makes it more suitable for use in the matrix. It has been widely used in structural materials, but because the diamond segment and the matrix are usually connected by welding or bonding, and the expansion coefficients between the diamond segment and the matrix are different, the connection strength is low, and the abrasive grinding During the process, with the wear and tear of the diamond segments, this connection method is prone to loosening, causing the remaining diamond segments to fall off the substrate directly, resulting in the scrapping of the entire diamond abrasive tool and waste
[0003] The cutter head of the traditional diamond grinding tool is to put the diamond powder in the graphite mold, and the graphite mold is placed between the upper and lower platens of the hot press, and the hydraulic mechanism of the hot press exerts a certain pressure on the graphite mold, so that The disadvantage of the above-mentioned process is that the disassembly and assembly of the graphite mold is complicated, and the placement of the graphite mold needs to be accurately positioned by a positioning plate. Before compression molding, a mold frame must be set outside the graphite mold, and the graphite mold is fastened together by the mold frame. The process is very cumbersome and time-consuming, which is not conducive to improving production efficiency. powder composition, the production cost is also higher

Method used

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  • A kind of diamond grinding tool and its production process
  • A kind of diamond grinding tool and its production process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] The production process of the diamond abrasive tool, such as Figure 1-Figure 2 As shown, the following process steps are included:

[0052] (1) First, 5% phenolic resin and 95% phenolic plastic are evenly mixed in proportion to form the base material of the abrasive tool matrix 1, and the phenolic resin is a phenolic resin with a hardness of 115 to 125 hardness units;

[0053] (2) The bottoms of the screws 3 and each diamond segment 2 are welded together to form the diamond segment 2 with the screw 3, and the diamond segment 2 is a strip segment 21 or a square segment 22;

[0054] (3) Clean the diamond segment 2 with the screw 3 and apply temperature-resistant glue evenly on the surface of the screw 3;

[0055] (4) Put a plurality of diamond segments 2 with screws 3 coated with temperature-resistant glue together into a square steel mold 4. The material of the steel mold 4 is Cr12 mold steel with a hardness ≥ 55HRC. There are four grooves 41 adapted to the shape of t...

Embodiment 2

[0060] The production process of the diamond abrasive tool, such as Figure 1-Figure 2 As shown, the following process steps are included:

[0061] (1) First, 10% phenolic resin and 90% phenolic plastic are evenly mixed in proportion to form the base material of the abrasive tool base 1, and the phenolic resin is a phenolic resin with a hardness of 115 to 125 hardness units;

[0062] (2) The bottoms of the screws 3 and each diamond segment 2 are welded together to form the diamond segment 2 with the screw 3, and the diamond segment 2 is a strip segment 21 or a square segment 22;

[0063] (3) Clean the diamond segment 2 with the screw 3 and apply temperature-resistant glue evenly on the surface of the screw 3;

[0064] (4) Put a plurality of diamond segments 2 with screws 3 coated with temperature-resistant glue together into a square steel mold 4. The material of the steel mold 4 is Cr12 mold steel with a hardness ≥ 55HRC. There are four grooves 41 adapted to the shape of th...

Embodiment 3

[0069] The production process of the diamond abrasive tool, such as Figure 1-Figure 2 As shown, the following process steps are included:

[0070] (1) First, 8% phenolic resin and 92% phenolic plastic are uniformly mixed in proportion to form the base material of the abrasive tool matrix 1, and the phenolic resin is a phenolic resin with a hardness of 115 to 125 hardness units;

[0071] (2) The bottoms of the screws 3 and each diamond segment 2 are welded together to form the diamond segment 2 with the screw 3, and the diamond segment 2 is a strip segment 21 or a square segment 22;

[0072] (3) Clean the diamond segment 2 with the screw 3 and apply temperature-resistant glue evenly on the surface of the screw 3;

[0073] (4) Put a plurality of diamond segments 2 with screws 3 coated with temperature-resistant glue together into a square steel mold 4. The material of the steel mold 4 is Cr12 mold steel with a hardness ≥ 55HRC. There are four grooves 41 adapted to the shape o...

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Abstract

The invention discloses a diamond grinding tool. The diamond grinding tool comprises a grinding tool substrate and a plurality of diamond blocks, wherein the plurality of diamond blocks are embedded into the grinding tool substrate, parts, which respectively correspond to the diamond blocks in position, of the grinding tool substrate are bulged upwards so as to form elevation stands, so that a plurality of strip-shaped grooves are formed in the grinding tool substrate, screws which are fixedly welded to the bottoms of the corresponding diamond blocks are respectively embedded into the parts, which respectively correspond to the diamond blocks in position, of the grinding tool substrate, and the screws are closely bonded with the grinding tool substrate by glue, so that the grinding tool substrate is firmly fixed to the diamond blocks. The diamond grinding tool has the advantages that the binding strength between the diamond blocks and the grinding tool substrate is high, the manufacturing cost of the grinding tool is low, and the service life is long. The invention further discloses a production process of the diamond grinding tool, the production cost is low, the production process is simple, and the production efficiency of the diamond grinding tool is high.

Description

technical field [0001] The invention relates to the technical field of abrasive tools for grinding and polishing, in particular to a diamond abrasive tool and a production process thereof. Background technique [0002] With the increasingly wide application of diamond abrasive tools in the stone processing industry, more and more diamond abrasive tools are used in the process of stone grinding and polishing. Existing diamond abrasive tools usually consist of a diamond segment as a cutter head and a matrix for fixing the diamond segment. Due to its excellent mechanical properties, insulation, cohesiveness and forming process properties, phenolic resin makes it more suitable for use in the matrix. It has been widely used in structural materials, but because the diamond segment and the matrix are usually connected by welding or bonding, and the expansion coefficients between the diamond segment and the matrix are different, the connection strength is low, and the abrasive grind...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B24D3/00B24D3/34B24D13/14B24D13/18B24D18/00
CPCB24D3/002B24D3/34B24D13/14B24D13/18B24D18/0009B24D18/0072
Inventor 林志韧
Owner 泉州金山石材工具科技有限公司