Technique for preparing suction plate of hydrogen atom frequency marker

A process method, the technology of the getter sheet, which is applied in the direction of electrical components, discharge lamps, discharge tubes, etc., can solve the problems of small suction capacity, low suction rate, and powder drop of the suction sheet, and achieves a large suction rate, The effect of large suction surface area and simple process

Inactive Publication Date: 2012-12-05
中国航天科工集团第二研究院二〇三所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a kind of method for preparing the gas-absorbing piece of hydrogen atomic frequency standard, to solve the problem of powder dropping and damage to H 2 The problem of low inspiratory rate and small inspiratory capacity

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] The specific steps of a method for preparing a getter sheet process for a hydrogen atomic frequency standard are:

[0025] The first step is to clean the surface of the titanium rod with a lathe

[0026] Cut the titanium rod into short rods of predetermined length, and the specific length is suitable for fixing it on the chuck of the lathe. Fix the cut titanium rod on the lathe, and remove the rough skin on the titanium rod surface, so that all the titanium rods reveal a fresh and smooth surface with metallic luster.

[0027] The second step is to use a wire cutting machine to cut slits on the titanium rod

[0028] Fix the cleaned titanium rod on the wire cutting machine, cut slits along the radial direction of the cross section of the titanium rod, the interval between two slits is 20mm, the depth of the slit is 20mm, and the width of the slit is less than 0.1mm. The length of the slit is equal to the length of the titanium rod, that is, the slit is cut through the w...

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Abstract

The invention discloses a technique for preparing a suction plate of a hydrogen atom frequency marker. The suction plate is obtained by cutting a slot on a titanium rod, removing oil and cleaning, threading, cleaning, vacuum degassing, pressing and molding. The suction plate has the advantages that a large suction surface area is kept so as to ensure a high pumping rate, and the picking phenomenon of the existing non-evaporable suction plate for pressing powder in a using process is also avoided, meanwhile, the suction plate is a pure metal non-evaporable suction plate; the material source is simple, and various metal melting processes of an alloy suction plate are avoided; in addition, the process is simple and the manufacture is easy.

Description

technical field [0001] The invention relates to a process method of a getter sheet, in particular to a process method of a getter sheet for preparing a hydrogen atomic frequency standard. Background technique [0002] The getter sheet is also called getter, which is mainly used in the field of electric vacuum devices and vacuum technology. It is a material that can absorb residual miscellaneous gases, water vapor and fixed atmosphere. Its main function is to absorb vacuum electronic devices, especially sealed off The residual gas retained by the vacuum tube during or after mechanical exhaust can increase the vacuum degree in the tube to ensure a good vacuum state, prolong the service life, and improve the reliability of the device. [0003] According to different methods of obtaining a clean surface, getter sheets can be divided into two categories: evaporative getter sheets and non-evaporable getter sheets. Evaporation of evaporative getter sheets at high temperatures is li...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01J7/18B23P15/00
Inventor 陈强张继红操春燕高连山
Owner 中国航天科工集团第二研究院二〇三所
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