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Screening device for pure high-temperature alloy powder

A screening device and high temperature alloy technology, applied in the field of powder metallurgy, can solve the problems of secondary pollution and high level, and achieve the effects of avoiding strong impact, simple device structure and good sealing

Inactive Publication Date: 2019-03-26
AVIC BEIJING INST OF AERONAUTICAL MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention designs a pure screening device for the problems of high powder oxygen and water content and secondary pollution caused by screening in the existing screening technology

Method used

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  • Screening device for pure high-temperature alloy powder

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] 150kgGH4169 alloy powder was used for sieving test, the sieving device was vacuumed until the vacuum degree was 6.0Pa, and argon gas was filled at a rate of 30L / min, and the high-temperature alloy metal powder powder collection tank prepared by vacuum induction was fed into the electromagnetic feeding tank. The upper end of the system is connected, the feeding speed is selected as 2kg / min, and the vibrating screening system is turned on. After the continuous screening is completed, the classified powder storage tank is sealed and stored for later use.

Embodiment 2

[0034] 240kgGH3536 alloy powder was used for screening test, the screening device was vacuumed until the vacuum degree was 7.5Pa, filled with argon gas at a rate of 50L / min, and the superalloy metal powder powder collection tank prepared by vacuum induction was fed into the electromagnetic feeding tank. The upper end of the system is connected, the feeding speed is selected to be 4kg / min, and the vibrating screening system is turned on. After the continuous screening is completed, the classified powder storage tank is sealed and stored for later use.

Embodiment 3

[0036] The sieving test was carried out with 180kg of FGH95 alloy powder, and the sieving device was vacuumed until the vacuum degree was 8.0Pa, and argon gas was filled at a rate of 90L / min, and the high-temperature alloy metal powder powder collection tank prepared by vacuum induction and electromagnetic feeding The upper end of the system is connected, the feeding speed is selected as 6kg / min, and the vibrating screening system is turned on. After the continuous screening is completed, the classified powder storage tank is sealed and stored for later use.

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Abstract

The invention belongs to the field of powder metallurgy, and relates to a screening device for pure high-temperature alloy powder. The screening device comprises four parts: a screening system, a vacuum system, an inflation system and an electromagnetic feeding system, wherein the vacuum system is connected with the top part of the screening system through a pipeline; the inflation system is arranged on the lower part of the screening system; the electromagnetic feeding system is arranged on the top part of the screening system and comprises an electromagnetic vibrator and a horizontal pipeline; one end of the horizontal pipeline is connected with the top part of the screening system; the other end of the horizontal pipeline is connected with one powder tank; three powder tanks are locatedon the upper part of the electromagnetic feeding system, the lower part of a screen of the screening system, and the upper part of the screen of the screening system; and various connecting parts ofthe screening device are sealed through O-shaped seal rings. In order to solve the problems that the requirement on the screening purity of gas atomization high temperature alloy powder is high and the like, the oxygen content and the water content of high-temperature alloy powder are reduced through the system integration screening device, and the powder quality of the high-temperature alloy after screening is improved.

Description

technical field [0001] The invention provides a screening device for pure superalloy powder, which belongs to the field of powder metallurgy. Background technique [0002] Powdered superalloy materials and their advanced manufacturing technology provide an important foundation and guarantee for the development of advanced aero-engine turbine disks, and are essential materials for the manufacture of high-reliability and long-life turbine disks for modern advanced large aircraft. Powder superalloy discs have been applied maturely and reliably in foreign high-performance engines. At present, three generations of powder superalloys have been successfully developed, the first generation of 650°C high-strength powder superalloys René95, IN100, etc., the second generation of 750°C damage-tolerant powder superalloys René88DT, RR1000, etc., the third generation of high-strength damage-tolerant powder superalloys René104 Wait. The first generation of powdered superalloys has been us...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B07B1/28B07B1/46
CPCB07B1/28B07B1/46
Inventor 袁华李周许文勇刘玉峰刘杨
Owner AVIC BEIJING INST OF AERONAUTICAL MATERIALS
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