Solder ring for magnetron cathode assembly, method for producing solder ring for magnetron cathode assembly and molybdenum end cap connecting with solder ring

A magnetron cathode and manufacturing method technology, applied in the field of powder metallurgy manufacturing, can solve problems such as poor uniformity, affecting the welding quality of molybdenum end caps and magnetron coils, achieve high yield, solve welding quality problems, and reduce production costs Effect

Inactive Publication Date: 2013-04-10
XIAMEN HONGLU TUNGSTEN MOLYBDENUM IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The data show that the commonly used solder systems for magnetron components are iron-molybdenum-nickel system and ruthenium-molybdenum-nickel system. The uniformity of the molybdenum end cap is poor, which affects the welding quality of the molybdenum end cap and the magnetron coil

Method used

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  • Solder ring for magnetron cathode assembly, method for producing solder ring for magnetron cathode assembly and molybdenum end cap connecting with solder ring
  • Solder ring for magnetron cathode assembly, method for producing solder ring for magnetron cathode assembly and molybdenum end cap connecting with solder ring
  • Solder ring for magnetron cathode assembly, method for producing solder ring for magnetron cathode assembly and molybdenum end cap connecting with solder ring

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] (1) Weigh polyvinyl alcohol and polyethylene glycol in a weight ratio of 5:1, add distilled water, stir and dissolve to obtain a forming agent system, and the concentration of the forming agent system is 0.02~0.1g / mL; according to 10:60:10 Weigh ruthenium powder, molybdenum powder and nickel powder in a weight ratio to obtain a metal powder system and pour it into a ball mill jar, add grinding balls and the above-mentioned forming agent system, and carry out wet ball milling for 20 hours to obtain a slurry, wherein the grinding balls and metal The weight ratio of the powder system is 3:1, and the weight ratio of the metal powder system and the forming agent system is 7:1; the slurry is transported to a centrifugal atomizing disc for atomization, drying and granulation to obtain granulated powder, which is The scanning electron microscope image of the granulated powder is as follows figure 1 and figure 2 The above-mentioned granulated powder is respectively sieved thro...

Embodiment 2

[0041] (1) Weigh polyvinyl alcohol and polyethylene glycol in a weight ratio of 10:1, add distilled water, stir and dissolve to obtain a forming agent system solution, and the concentration of the forming agent system solution is 0.02~0.1g / mL; according to 30:40 Weigh ruthenium powder, molybdenum powder and nickel powder in a weight ratio of 40 to obtain a metal powder system and pour it into a ball-milling jar, add a grinding ball and the above-mentioned forming agent system solution, and carry out wet ball milling for 10 hours to obtain a slurry, wherein grinding The weight ratio of the ball to the metal powder system is 6:1, and the weight ratio of the metal powder system to the solution of the forming agent system is 3:1; the slurry is transported to a centrifugal atomizing disc for atomization, drying and granulation to obtain a Granular powder; pass the above-mentioned granulated powder through 80-mesh and 400-mesh sieves respectively to obtain solder powder; put the abov...

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Abstract

The invention discloses a solder ring for a magnetron cathode assembly, a method for producing the solder ring for the magnetron cathode assembly and a molybdenum end cap connecting with the solder ring. Solder powder with uniform ingredients is produced through a spray granulation mode, the solder ring for the magnetron cathode assembly is produced through mould pressing, and the molybdenum end cap connecting with the solder ring is produced through a bonding combination mode. The solder ring has good welding performance; the solder powder which is used by the solder ring comprises uniform ingredients, so that the welding quality problem which is caused by the solder ingredient uniform factor is solved; the finished product rate of the method for producing is high, and the production cost is lowered; and according to the molybdenum end cap connecting with the solder ring for the magnetron cathode assembly, subsequent welding technologies are simplified, the method for producing is simple and practicable, and the finished product rate is high.

Description

technical field [0001] The invention relates to a solder ring for a magnetron cathode assembly, a manufacturing method and a molybdenum end cap connected with the solder ring, and belongs to the field of powder metallurgy manufacturing. Background technique [0002] The magnetron coil, the core component of the magnetron cathode assembly, is made of tungsten alloy, and the molybdenum end cap is made of molybdenum. To form a closed loop, the magnetron must be welded with molybdenum end caps. However, tungsten alloy and molybdenum are both high-temperature materials, and direct welding is extremely difficult. The current method is to use an intermediate solder. The data shows that the commonly used solder systems for magnetron components include iron-molybdenum-nickel system and ruthenium-molybdenum-nickel system. The uniformity is poor, which affects the welding quality of the molybdenum end cap and the magnetron coil. SUMMARY OF THE INVENTION [0003] The purpose of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K35/02B23K35/32B22F1/00B22F9/08H01J23/05H01J9/02
Inventor 朱武江祺锋刘盈霞赖亚洲于洋
Owner XIAMEN HONGLU TUNGSTEN MOLYBDENUM IND CO LTD
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