AlTiN-AlCrN super hard nano multilayer composite coating hob and preparation method thereof

A composite coating and nano-multi-layer technology, which is applied in coatings, gear tooth manufacturing devices, chemical instruments and methods, etc., can solve the problems of reduced deformation resistance and reduced hardness, so as to reduce stress, increase density, and achieve good The effect of binding force and wear and temperature resistance

Inactive Publication Date: 2013-02-13
SHENZHEN YUANSIDACHENG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Once the crystalline structure of the coating changes to a hexagonal lattice, the hardness decreases due to the reduced resistance to deformation

Method used

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  • AlTiN-AlCrN super hard nano multilayer composite coating hob and preparation method thereof
  • AlTiN-AlCrN super hard nano multilayer composite coating hob and preparation method thereof
  • AlTiN-AlCrN super hard nano multilayer composite coating hob and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Example 1: At 250°C and in an argon environment, after glow cleaning the high-speed steel and hard alloy hobbing cutters, a 20-nanometer-thick transition metal Cr bonding layer was deposited at 0.01Pa and -900V; at 0.1 A 100nm thick CrN layer was deposited under Pa, -100V conditions; a nano-AlTiN / CrN support layer was deposited under the conditions of 0.5 pressure and -50V bias; the thickness of the single-layer AlTiN nano-layer was 3 nm, and the thickness of the single-layer CrN layer was 2 nm. The thickness of the AlTiN / CrN multilayer film is 500 nm. Finally, the AlTiN / AlCrN multilayer coating is deposited under the condition of 0.5Pa pressure and -50V bias; in the AlTiN / AlCrN multilayer film, the thickness of the single-layer AlTiN nanometer layer is 3 nanometers, and the thickness of the single-layer AlCrN layer is 2 nanometers. The thickness of the AlTiN / AlCrN multilayer film is 1 micron. The total thickness of the coating is controlled at 1.62 microns, and after ...

Embodiment 2

[0044] Example 2: At 350°C and in an argon environment, after glow cleaning the high-speed steel and hard alloy hobbing cutters, a 40-nanometer-thick transition metal Cr bonding layer was deposited at 0.05Pa and -950V; at 0.5 A 150nm thick CrN layer was deposited under Pa, -150V conditions; an AlTiN / CrN support layer was deposited under 1Pa pressure, -70V bias conditions; the thickness of the single-layer AlTiN nano-layer was 4 nm, and the thickness of the single-layer CrN layer was 3 nm. The thickness of the AlTiN / CrN multilayer film is 1.4 microns. Finally, the AlTiN / AlCrN multilayer coating is deposited under the condition of 1Pa pressure and -80V bias; in the AlTiN / AlCrN multilayer film, the thickness of a single layer of AlTiN nanometer layer is 4 nanometers, and the thickness of a single layer of AlCrN layer is 4 nanometers. The thickness of the AlTiN / AlCrN multilayer film is 3.2 microns. The total thickness of the coating is controlled at 4.79 microns, and after the pr...

Embodiment 3

[0045] Example 3: At 400°C and in an argon environment, after glow cleaning the high-speed steel and hard alloy hobbing cutters, deposit a 50-nanometer-thick transition metal Cr bonding layer at 0.08Pa and -1000V; at 1.5 A 200nm thick CrN layer was deposited under Pa, -200V conditions; an AlTiN / CrN support layer was deposited under 2.5Pa pressure, -100V bias conditions; the thickness of the single-layer AlTiN nano-layer was 4 nm, and the thickness of the single-layer CrN layer was 4 nm. The thickness of the AlTiN / CrN multilayer film is 3.2 microns. Finally, the AlTiN / AlCrN multilayer coating is deposited under the condition of 3Pa pressure and -150V bias; in the AlTiN / AlCrN multilayer film, the thickness of the single-layer AlTiN nano-layer is 4 nanometers, and the thickness of the single-layer AlCrN layer is 4 nanometers. The thickness of the AlTiN / AlCrN multilayer film is 4.8 microns. The total thickness of the coating is controlled at 8.25 microns, and after the preparatio...

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Abstract

The invention discloses an AlTiN-AlCrN super hard nano multilayer composite coating hob and a preparation method thereof. The hob is provided with a nano composite coating consisting of Cr, CrN, AlTiN / CrhN and AlTiN / AlCr in sequence and generated by adopting an arc ion plating technology. The coating is reasonable in structural design and has gradually changed components and gradient hardness at the same time; and the prepared AlTiN / AlCr coating has good bonding force with the high-speed steel or hard alloy hob, high hardness and excellent temperature resistance. The problems of insufficient temperature resistance and abrasion resistance of the hob are well solved, the machining performance of the hob is greatly improved, and the hob has a good industrial application prospect.

Description

technical field [0001] The invention relates to the technical field of thin film materials, in particular to an AlTiN-AlCrN superhard nanometer multilayer composite coating gear hob and a preparation method thereof. Background technique [0002] Gears and gear products are important basic parts of mechanical equipment. The main transmission components of most complete sets of mechanical equipment are gear transmissions. The gear industry is the foundation of the machinery industry. Compared with the mechanical assembly industry, the gear industry is the most technology-intensive, capital-intensive and relatively largest industry. my country's gear industry is basically composed of three parts, namely industrial gears, vehicle gears and gear equipment. Vehicle gear transmission manufacturing includes vehicle gears and vehicle transmission assemblies, mainly for automobiles, construction machinery, agricultural machinery, and motorcycle transmissions. Vehicle gears account f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23F21/16B32B15/04B32B33/00C23C14/06C23C14/16C23C14/32
Inventor 杨兵王如意陈燕鸣丁辉
Owner SHENZHEN YUANSIDACHENG TECH
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