Method for ion plating of graphite-like self-lubrication film on rigid gear for harmonic reducer

A harmonic reducer and self-lubricating film technology, applied in the field of material manufacturing, can solve the problems of wear and damage between the friction pairs of the harmonic reducer gear, insufficient durability, etc., to improve market competitiveness, reduce friction coefficient, and improve hardness Effect

Inactive Publication Date: 2016-12-14
725TH RES INST OF CHINA SHIPBUILDING INDAL CORP
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Problems solved by technology

[0004] The purpose of the present invention is to solve the problems of wear and tear between the gear friction pairs of the harmonic reducer and

Method used

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  • Method for ion plating of graphite-like self-lubrication film on rigid gear for harmonic reducer

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Embodiment Construction

[0015] The specific implementation is as follows:

[0016] A method for ion-plating a graphite-like self-lubricating film layer on a rigid wheel for a harmonic reducer, comprising the steps of:

[0017] Step 1. First, carry out ultrasonic dewaxing and degreasing cleaning on the steel wheel to be plated. After blowing dry with a compressed air dryer, put the steel wheel into the vacuum chamber of the four-target micro-arc ion plating equipment. There are chromium targets and pure graphite targets, and the vacuum chamber is evacuated so that the vacuum degree of the vacuum chamber is less than 6.0×10 -3 Pa, and argon gas is passed into the vacuum chamber, the gas flow rate is 7sccm~100sccm, and the working pressure in the vacuum chamber is kept at 1.0×10 -3 Pa~8.0×10 -3 ;

[0018] Step 2. Carry out ion bombardment cleaning to the steel wheel in the vacuum chamber of step 1, and keep the working air pressure in the vacuum chamber at 1.0×10 -3 Pa~8.0×10 -3 , the control param...

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Abstract

A method for ion plating of a graphite-like self-lubrication film on a rigid gear for a harmonic reducer comprises the following implementation steps that firstly, the rigid gear is cleaned, the rigid gear is placed in a four-target micro arc ion plating device vacuum chamber after being dried, and the four-target micro arc ion plating device vacuum chamber is inflated with argon after being subjected to vacuum pumping; and after cleaning is finished through ion bombardment, film coating is conducted, a plurality of chromium targets and a plurality of graphite targets are started, and a pure-chromium bottom coating, a transition layer and a graphite-like working layer are sequentially deposited. The rigid gear treated through the method has a self-lubricating function, the rigid gear is used for the harmonic reducer, the characters of high speed, high load bearing and low friction are obtained, and accordingly the effects of reducing abrasion and prolonging the service life are achieved.

Description

technical field [0001] The invention belongs to the field of material manufacturing, and in particular relates to a method for ion-plating a graphite-like self-lubricating film layer on a rigid wheel for a harmonic reducer. Background technique [0002] As an important basic part of precision machinery, harmonic reducers are widely used in precision mechanical drive control fields such as industrial robots, CNC machine tools, and aerospace. However, the service life of domestic harmonic reducers is far lower than that of foreign products, and is almost Monopoly of imported products. The main failure mode of the domestic harmonic reducer is the fatigue wear damage of the rigid wheel and flexible wheel teeth. Applying modern surface treatment technology to deposit a layer of low friction coefficient and high hardness solid self-lubricating film on the surface of the rigid wheel can prevent the direct contact of parts under the condition of discontinuous oil film and achieve g...

Claims

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Application Information

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IPC IPC(8): C23C14/32C23C14/02C23C14/16C23C14/06
CPCC23C14/325C23C14/022C23C14/025C23C14/0605C23C14/16
Inventor 范国栋程欢欢叶晓慧
Owner 725TH RES INST OF CHINA SHIPBUILDING INDAL CORP
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