A method and device for improving the service life of push rod components in aerospace relays

A technology for pushing rods and relays, applied in vacuum evaporation plating, coating, sputtering plating, etc., can solve the problems of affecting the working life of sealed relays, poor wear resistance, etc., achieve enhanced peel strength, improve film The effect of high hardness and atomic ionization rate

Active Publication Date: 2018-11-09
BEIJING NORMAL UNIVERSITY
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

The glass push ball on the push rod part is the main reason affecting the working life of the sealed relay due to its poor wear resistance;

Method used

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  • A method and device for improving the service life of push rod components in aerospace relays
  • A method and device for improving the service life of push rod components in aerospace relays
  • A method and device for improving the service life of push rod components in aerospace relays

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Embodiment Construction

[0043] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0044] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0045] Various preferred embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0046] method embodiment

[0047] With the rapid development and application of China's aerospace technology, the requirements for the stability and...

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Abstract

The invention discloses method and equipment for prolonging the life of a push rod component in a sealed relay. In the method, a superhard wear-resistant film layer with good insulating property is deposited on the surface of a push ball in the push rod component by a low-energy ion beam technology; and the film is prepared by the following steps: injecting a layer of metal 'pinning layer' capable of improving binding force of the film into glass surface by a metal vapor vacuum arc (MEVVA) ion source method; depositing a first metal film transition layer for releasing internal stress on the metal 'pinning layer' by a magnetic filtered cathodic vacuum arc (FVCA) deposition method; and depositing a superhard wear-resistant DLC layer on the first transition layer by the magnetic FVCA deposition method, wherein the total thickness of the film is 0.1-5 microns. Through the invention, the life of the push ball in the push rod component of the sealed relay can be obviously prolonged by depositing the superhard DLC film on the push rod component of the sealed relay.

Description

technical field [0001] The invention relates to the technical field of surface modification of ray beam materials, in particular to a method and equipment for promoting the life of rod components in sealed relays. Background technique [0002] In recent years, sealed relays have been widely used in aviation and aerospace fields. With the rapid development of aerospace and aviation industries, sealed relays are also developing in the direction of small, ultra-small, high-power, and high-reliability. Wherein, the contact switching function of the sealed relay is realized by pushing the reed by the pushing rod part. Therefore, the push rod part is an important part of the hermetic relay. The push rod part is composed of glass ball and push rod. Among them, the glass ball is generally sintered by DM305, DM308 and 7052 glass powder, and the material of the push rod is generally 4J29 Kovar alloy. This is because the ferromagnetic Kovar alloy expands in volume below the Curie po...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C14/48C23C14/32C23C14/18C23C14/06
CPCC23C14/0605C23C14/18C23C14/325C23C14/48
Inventor 廖斌欧阳晓平罗军张旭吴先映王宇东
Owner BEIJING NORMAL UNIVERSITY
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