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A continuous sintering furnace for metal injection molding

A technology of injection molding and sintering furnace, which is applied in the field of powder metallurgy, can solve problems such as equipment sealing and unreasonable air flow, and achieve the effect of solving equipment sealing

Active Publication Date: 2014-10-08
ZHEJIANG YIHUO TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a metal injection molding continuous sintering furnace, which can effectively solve the problems of equipment sealing and unreasonable air flow

Method used

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  • A continuous sintering furnace for metal injection molding
  • A continuous sintering furnace for metal injection molding
  • A continuous sintering furnace for metal injection molding

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0028] Such as figure 1 Shown is the metal injection molding continuous sintering furnace of the present invention, which includes a combined furnace body, the furnace head of the furnace body is provided with a liftable furnace door and a feed port 6, and the furnace tail is provided with a liftable furnace door and a discharge port 60, the furnace body is sequentially provided with a degreasing section 1, a sintering section 2, a slow cooling section 3, and a cooling section 4 from the furnace head to the furnace tail. The furnace body structure is a mesh belt furnace or a walking beam continuous furnace; when a pusher boat structure sintering furnace is adopted, the size of the material boat is in an integer multiple relationship with the furnace temperature.

[0029] An external circulation mechanism is used between the feed port 6 and the discharge port 60 . The outer circulation mechanism is realized by a chain wheel, a belt or a gear transmission mechanism.

[0030] T...

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PUM

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Abstract

The invention discloses a metal injection molded continuous sintering furnace. The sintering furnace comprises a combined furnace body, wherein a liftable furnace door and a material inlet are arranged at the furnace head part of the furnace body; another liftable furnace door and a material outlet are arranged at the furnace tail part of the furnace body; the furnace body is provided with a degreasing section, a sintering section, a slow cooling section and a cooling section from the furnace head part to the furnace tail part; the degreasing section is provided with at least one inert gas pipeline; the gas outlets of the inert gas pipelines are sectionally arranged in a degreasing-section furnace cavity; the degreasing section is provided with at least one carbon control gas pipeline at the same time; and the gas outlets of the carbon control gas pipelines are sectionally arranged in the degreasing-section furnace cavity. According to the sintering furnace, the inert gas pipelines are sectionally arranged in the degreasing section and can adjust the flow quantities and the gas flow directions in different temperature areas according to the needs, so that the problems of equipment sealing and unreasonable gas flow can be effectively solved.

Description

technical field [0001] The invention relates to powder metallurgy technology, in particular to a sintering furnace for metal injection molding. Background technique [0002] Metal injection molding is a new component processing technology introduced by plastic injection molding technology to the field of powder metallurgy. Powder injection molding can mold very complex parts at one time, just like plastics. Powder injection molding is a revolution in the molding and processing of small and complex parts. [0003] At present, metal powder injection molding manufacturers use traditional thermoplastic bonding systems (polyester paraffin, polyester oil, polyester compounds, etc.), polyoxymethylene systems, etc. Different systems have different degreasing processes. Currently, solvent degreasing and catalytic degreasing are being popularized and promoted. Different systems have great differences in sintering equipment. At present, the more popular sintering equipment is vacu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F3/22B22F3/10
Inventor 申建中
Owner ZHEJIANG YIHUO TECH