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Directed air flow device for metal powder injection molding vacuum degreasing sintering furnace

A technology of directional air flow and injection molding, which is applied in the field of metal powder injection molding vacuum degreasing sintering furnace, and can solve problems such as different performance

Active Publication Date: 2016-08-17
NINGBO HIPER VACUUM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims at the problem in the prior art that the airflow passing through each layer of the material board inside the material box cannot be guaranteed to be uniform, resulting in the binder still settling on the parts, so that the properties obtained after sintering of the products of the same furnace are different, and provides A directional airflow device for metal powder injection molding vacuum degreasing sintering furnace that can make the airflow passing through each layer of material in the material box uniform and completely remove the binder

Method used

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  • Directed air flow device for metal powder injection molding vacuum degreasing sintering furnace
  • Directed air flow device for metal powder injection molding vacuum degreasing sintering furnace
  • Directed air flow device for metal powder injection molding vacuum degreasing sintering furnace

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Effect test

Embodiment 1

[0029] Metal powder injection molding vacuum degreasing sintering furnace directional airflow device, such as Figure 2 to Figure 3 As shown, the material box 1 is included, and the material box 1 is provided with several directional airflow devices.

[0030] In this embodiment, the material box 1 includes two front and rear door panels 2, two left and right side panels and two upper and lower bottom panels. The directional airflow device is arranged symmetrically on the door panels 2 at both ends of the material box 1 . Several material plates 18 are arranged in the material box 1, and the material plates 18 are inserted into the material box 1 through slots on the side plates of the material box 1.

[0031] The directional air flow device includes a valve seat assembly and a valve core balance weight 3 , and the valve seat assembly includes a valve cap 4 and a valve seat 5 .

[0032] The valve seat 5 is provided with a first hole 6 , and the valve core balance weight 3 is ...

Embodiment 2

[0037] Such as Figure 5 to Figure 6 As shown, its basic structure is the same as that of Embodiment 1, except that the directional air flow device includes a valve seat assembly and a valve core 10 , and the valve seat assembly includes a valve cap 4 and a valve seat 5 .

[0038] The valve core 10 is porous graphite.

[0039] The door panel 2 of the material box 1 is provided with a third hole 8 , and one end of the valve seat 5 is embedded in the third hole 8 .

[0040] A fourth hole 9 is provided on the valve seat 5 , and the fourth hole 9 communicates with the inside of the material box 1 .

[0041] The valve core 10 is fixed in front of the fourth hole 9 through the valve cap 4 .

[0042] The valve core 4 made of porous graphite can make the protective gas pass through easily, so there will be fresh protective gas entering the inside of the material box 1 in a predictable manner, but at the same time, because the pores of the porous graphite are extremely small, the ins...

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Abstract

The invention relates to a vacuum debinding sintering furnace for metal powder injection molding, and discloses a directional airflow device of the vacuum debinding sintering furnace for metal powder injection molding. The directional airflow device comprises a feed box (1). A plurality of directional airflow device bodies are arranged on the feed box (1) and symmetrically arranged on door plates (2) at two ends of the feed box (1). Since the directional airflow device bodies are arranged on the door plates of the feed box, a main air intake direction from door cracks and safety valves is changed into an air intake direction form pore passages on the door plates of the feed box; by the structure, wide air intake can be achieved, airflow is distributed evenly, and passes each layer of feed plate inside the feed box; and binding agents in the feed box cannot flow outside the feed box to contaminate heating elements, heat insulating materials and the inner wall of the furnace.

Description

technical field [0001] The invention relates to a metal powder injection molding vacuum degreasing sintering furnace, in particular to a directional air flow device for a metal powder injection molding vacuum degreasing sintering furnace. Background technique [0002] Metal powder injection molding is a new technology combining traditional powder metallurgy technology and plastic molding technology. Injection molding, the rapid manufacture of high-density, high-precision, and complex-shaped structural parts, can quickly and accurately transform design ideas into products with certain structural and functional characteristics, and can directly mass-produce parts. It is a new breakthrough in the manufacturing technology industry. change. The injection mechanism is: the mixture of metal powder and binder is injected into the mold cavity at a certain temperature, speed and pressure through the injection machine, and the preform of a certain shape and size is obtained after cool...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F3/22B22F3/10
Inventor 刘鹏徐文立陈可杰
Owner NINGBO HIPER VACUUM TECH CO LTD