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Preparation method of diamond coated cutting tool and application of diamond coated cutting tool in preparation of printed circuit board

A diamond coating and cutting tool technology, applied in metal material coating technology, coating, metal processing equipment and other directions, can solve the problem of not fully reflecting the high hardness and high wear resistance of diamond, poor quality stability, and unmentioned production capacity. and other problems, to achieve the effects of low cost, reduced preparation cost, improved service life and yield

Active Publication Date: 2015-06-17
CONPROFE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Practical knives include graphite milling cutters, circuit board forming cutters, and carbon fiber milling cutters, but the overall improvement is not large, and the life span is only increased by less than 10 times, which does not fully reflect the characteristics of high hardness and high wear resistance of diamond.
In addition, there is no mention of industrialization data on batch qualification rate, production capacity, etc.
[0005] To sum up, although there have been many reports on the preparation of diamond-coated cutting tools in China, they all remain at the laboratory level, with local technical improvements or improvements, and there are deficiencies such as high preparation costs and poor quality stability. The preparation of diamond-coated tools with long service life has important economic significance and social value for the large-scale production and application of diamond-coated tools

Method used

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  • Preparation method of diamond coated cutting tool and application of diamond coated cutting tool in preparation of printed circuit board
  • Preparation method of diamond coated cutting tool and application of diamond coated cutting tool in preparation of printed circuit board
  • Preparation method of diamond coated cutting tool and application of diamond coated cutting tool in preparation of printed circuit board

Examples

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preparation example Construction

[0033] Compared with the preparation method of the existing diamond-coated cutting tool, the present invention mainly improves as follows: 1. It provides a new preparation method of the intermediate transition layer with low cost and can effectively improve the service life and yield of the product; 2. A complete set of preparation process routes is provided to realize the transformation of diamond-coated tools from laboratory research to industrial scale production.

[0034] The diamond-coated cutting tool of the present invention uses tungsten carbide-cobalt cemented carbide commonly used in printed circuit boards as a substrate, applies a transitional shielding cobalt layer, and finally uses vacuum chemical vapor deposition technology to coat a diamond coating of several microns to tens of microns.

[0035] The process route for preparing the diamond-coated tool follows the process of surface cleaning→surface cobalt removal→surface roughening→formation of intermediate transi...

Embodiment 1

[0048] This example provides a kind of preparation method of diamond-coated cutter, and it comprises the steps:

[0049] (1) Surface cleaning: self-prepared cleaning solution (sodium tripolyphosphate or sodium cetyl sulfonate system cleaning solution), at a temperature of 75 ° C, ultrasonic vibration for 5 minutes, then dry at 120 ° C, rinse with absolute ethanol .

[0050] (2) Surface cobalt removal: use 10wt% sulfuric acid aqueous solution to etch the tool body at room temperature for 30 minutes.

[0051] (3) Surface roughening: using an etching solution (composed of potassium ferricyanide, potassium hydroxide, and water at a mass ratio of 1:1:8), etch the tool body at room temperature for 5 minutes; after that, the The tool is placed in absolute ethanol dispersed with diamond micropowder with a diameter of about 3 microns, and ultrasonically oscillated for 10 minutes.

[0052] (4) Form an intermediate transition layer: at room temperature, mix ethyl orthosilicate, 10wt% h...

Embodiment 2

[0055] This example provides a kind of preparation method of diamond-coated cutter, and it comprises the steps:

[0056] (1) Surface cleaning: Self-prepared cleaning solution (sodium tripolyphosphate or sodium cetyl sulfonate system cleaning solution), at a temperature of 80 ° C, ultrasonic vibration for 6 minutes, then dry at 120 ° C, rinse with absolute ethanol .

[0057] (2) Surface cobalt removal: use 14wt% sulfuric acid aqueous solution to etch the tool body at room temperature for 5 minutes.

[0058] (3) Surface roughening: use etching solution (composed of potassium ferricyanide, potassium hydroxide, and water in a mass ratio of 1:1:8), etch the tool body at room temperature, and the etching time is 6mim; after that, the The tool is placed in absolute ethanol dispersed with diamond micropowder with a diameter of about 3 microns, and ultrasonically vibrated for 16 minutes.

[0059] (4) Form an intermediate transition layer: at room temperature, mix tetraethyl orthosili...

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Abstract

The invention relates to a preparation method of a diamond coated cutting tool and an application of the diamond coated cutting tool in preparation of a printed circuit board. The diamond coated cutting tool comprises a tool body made of tungsten carbide cobalt hard alloy, an intermediate transition layer and a diamond coating that are arranged sequentially. The preparation method comprises the sequential steps of tool pretreatment, forming of the intermediate transition layer and forming of the diamond coating, and particularly, the step of forming of the intermediate transition layer comprises the specific step of forming a compact silicon dioxide membrane of 0.5-5 microns in thick on the tool body through a sol-gel method and the specific step of obtaining a silicon / silicon carbide transition layer through reduction of the silicon dioxide membrane. According to the method, the diamond coated cutting tool with long service life can be prepared at lower cost, so that the method has important economic significance and social value for realizing large scale production and application of the diamond coated cutting tool.

Description

technical field [0001] The invention relates to a method for preparing a diamond-coated cutter and the application of the diamond-coated cutter prepared by the method in the preparation of printed circuit boards. Background technique [0002] Diamond has many excellent properties, such as the highest hardness, the best wear resistance and so on. This makes diamonds useful in many ways. However, the brittleness and scarcity of diamond limit its application in many fields. People have taken a variety of methods to manufacture artificial diamonds. Such as high temperature and high pressure diamond powder, polycrystalline diamond process, electrodeposited diamond process, sintered diamond process, etc. These techniques and methods have expanded the application field of diamond to a certain extent. With the development of science and technology, chemical vapor deposition diamond technology has appeared. This process has greatly improved the use efficiency of the diamond tool...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C18/12B26D1/00B23C5/00B23B51/00
Inventor 王涛
Owner CONPROFE TECH GRP CO LTD