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Coating removing method for diamond coated tool

A diamond coating and cutting tool technology, applied in metal material coating process, coating, gaseous chemical plating, etc., to achieve high production efficiency and excellent decoating quality

Inactive Publication Date: 2016-06-22
SUZHOU LEJING NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims at the deficiencies of existing methods for removing coatings from diamond-coated tools, and proposes a simple and convenient diamond-coated enhanced plasma decoating method, which is suitable for large-scale production and has high production efficiency

Method used

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  • Coating removing method for diamond coated tool

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Effect test

Embodiment 1

[0018] This embodiment takes the diamond-coated finishing end mill after wear as an example, and is applicable to all diamond-coated tools. The decoating process is carried out in plasma-enhanced chemical vapor deposition equipment. The specific decoating process is as follows:

[0019] (1) Fix the worn diamond-coated tool 2 on the sample stage of the vacuum chamber of the plasma-enhanced chemical vapor deposition equipment.

[0020] (2) Evacuate the vacuum chamber 1 of the plasma-enhanced chemical vapor deposition equipment to below 1-5×10-3Pa. The equipment adopts the plasma beam generated by 36Hz microwave, heats it to between 350-420°C, opens the gas inlet 4, and Oxygen, Cl 2 , ClO 2 The mixed gas with HCl is input into the vacuum chamber, the input speed of the gas is more than 0.6 liters / minute, the processing time is 10-15 min, and the working pressure is not lower than 100Pa when the gas is injected for processing. Simultaneously activate the plasma-enhanced plasma ...

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Abstract

The invention discloses a coating removing method for a diamond coated tool. The coating removing method comprises the steps that the abraded diamond coated tool is cleaned with acetone and ethyl alcohol; the abraded diamond coated tool is fixed to the center of a sample table of plasma enhancement chemical vapor deposition equipment, vacuumizing is conducted on the plasma enhancement chemical vapor deposition equipment till the pressure is below 1-5*10-3 Pa, plasma beams generated by 3GHz microwaves are adopted by the equipment, the heating temperature is 350-420 DEG C, gases including oxygen, Cl2, ClO2 and HCl are introduced, and the treatment time is 10-15 min; protective gas is introduced after the treatment is finished, and the tool is taken out after cooling; and microparticles on the surface of the tool are cleaned away with acetone after the tool is taken out, a tool basal body is exposed, and accordingly coating removing is finished.

Description

technical field [0001] The invention relates to the technical field of coated cutting tools, in particular to a method for decoating diamond-coated cutting tools. Background technique [0002] Diamond film is a diamond coating synthesized on a heterogeneous substrate by chemical vapor deposition (CVD for short). This technology has been applied to cutting tools, called diamond coated tools. The coating performance is close to that of natural diamond. Cutting of non-ferrous metals and their alloys such as silicon-aluminum alloys, copper alloys, ceramics, graphite, etc. During processing, the cutting speed is fast, the processing efficiency is high, and the service life of the cutting tool is long. [0003] The diamond coating is coated on the surface of the tool. The main disadvantage of such a diamond-coated tool is that compared with high-speed steel, hard alloy, and ceramic lamp tool materials, its cost is relatively high. After the diamond coating is worn or the coating ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C16/02C23C16/27C23G5/00
CPCC23C16/0245C23C16/0236C23C16/27C23G5/00
Inventor 华庆
Owner SUZHOU LEJING NEW MATERIAL TECH CO LTD
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