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Nano composite titanium silicon nitride tool coating and preparation method thereof

A nano-composite and nitride technology, applied in coating, metal material coating process, ion implantation plating, etc., can solve the problem of not meeting the better performance of the tool, and achieve practical use value, mechanical wear resistance and resistance. The effect of improved abrasive wear performance and huge market potential

Inactive Publication Date: 2010-10-06
DONGGUAN HANJING NANO MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

The previous cemented carbide, high-speed steel cutting tools and the widely used TiCN and TiAlN coating cutting tools have effectively improved the mechanical wear resistance and abrasive wear resistance of the cutting tools, but still cannot meet the requirements of modern industry for better performance of cutting tools.

Method used

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Embodiment Construction

[0018] The present invention uses physical vapor deposition technology to coat a layer of titanium / titanium nitride transition layer on the concrete surface of WC / Co cemented carbide cutter, and then coats a layer of titanium silicon nitride coating material, wherein the thickness of the transition layer is 0.1 -0.5 microns, the thickness of the titanium silicon oxide coating is 1-4 microns. Its coating formula is as follows: Titanium 50at.%

[0019] Silicon 6at.%

[0020] Nitrogen 44at.%

[0021] The cutting tool substrate pretreatment process involved in the invention is as follows: the uncoated cutting tool is ultrasonically cleaned with metal cleaning liquid, rinsed with deionized water, ultrasonically cleaned with alcohol, and dehydrated with acetone.

[0022] The coating step of the present invention is: uniformly fix the pretreated uncoated tool on the support with a distance of 10mm, put it into the coating machine, adjust the ...

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Abstract

The invention discloses a nano composite titanium silicon nitride tool coating. The coating formulation is as follows: 30-68at.% of titanium, 2-20at.% of Si and 30-50at.% of nitrogen. The titanium silicon nitride coating prepared by the formulation comprises the components the sum of which is 100%. The tool manufactured by the invention has significantly improved mechanical wear resistant performance and abrasion wear resistant performance, can meet the requirement on better performance of alloy tools of modern industry, and has huge market potential and practical use value.

Description

technical field [0001] A nano-composite titanium-silicon nitride tool coating coated by physical vapor deposition technology and a preparation method thereof. Background technique [0002] The hard tool coating is to coat a layer of several microns of high hardness and high wear resistance on the surface of the cemented carbide and high-speed steel tool substrate with good strength and toughness by physical or chemical vapor deposition method. Non-toxic metal or non-metallic compounds to reduce the diffusion and chemical reaction between the tool and the workpiece, protect the tool matrix material, and improve the wear resistance and cutting hardness of the tool. [0003] The hard coating materials prepared by physical vapor deposition technology in the early days are usually simple TiN and TiC coatings. The microhardness is about HV 2300, and the application temperature is 500-600 ° C. Compared with high-speed steel or hard alloy materials, It has high resistance to mechan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C14/06C23C14/02
Inventor 袁安素王成勇余东海
Owner DONGGUAN HANJING NANO MATERIAL
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