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A kind of powder injection molding mold and using method thereof

A powder injection molding and injection molding technology, applied in the field of powder injection molding molds, can solve the problems of cumbersome steps and limited improvement in the compactness of powder molded products, and achieve the goal of improving compactness, density and compactness, and competitiveness. Effect

Active Publication Date: 2017-08-25
DONGGUAN YIHAO METAL MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The steps of this method are relatively cumbersome, and the improvement of the compactness of powder molding products is also limited.

Method used

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  • A kind of powder injection molding mold and using method thereof
  • A kind of powder injection molding mold and using method thereof
  • A kind of powder injection molding mold and using method thereof

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0032] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0033] In this embodiment, the commonly used injection molding machine and supporting system in the powder metallurgy industry are used, and the particle size of the selected powder raw material is 10 μm on average, and the mold is installed on the injection molding machine. This part is the existing technology, that is, the commonly used technology in the industry, and will not be repeated here.

[0034] As shown in the drawings, the mold includes a movable mold 111 and a fixed mold 112 . The movable mold 111 includes a movable mold core 1, an ejector pin 2, a movable mold base plate 3, an ejector plate guide column 4, an ejector plate assembly 5, and a movable mold front plate 6. The fixed mold 112 includes a fixed mold core 7, a feed nozzle 8, and a fixed mold template 9. The movable mold 111 is connected with the fixed mold 112 through the push ...

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PUM

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Abstract

The invention discloses a powder injection molding mold, which comprises a movable mold core and a fixed mold core. The movable mold core is provided with an inner cavity, and the shape of the fixed mold core is similar to the inner cavity of the movable mold core. Adaptation, characterized in that there is a gap between the movable mold core and the fixed mold core, steps are provided on the inner wall of the movable mold core, and steps are provided on the outer wall of the fixed mold core to match the inner wall of the movable mold core. Compatible steps. Using this mold to prepare powder metallurgy products before degreasing and sintering can greatly increase their density.

Description

technical field [0001] The invention relates to a mold for powder injection molding, in particular to a powder injection mold for preparing compact moldings and a method for preparing molded products using the mold. Background technique [0002] Powder injection molding technology (Powder injection molding, referred to as PIM) is a kind of metal powder mixed with organic binder, injected into the mold cavity with an injection molding machine in a heated state, and then removed by chemical solvent or thermal decomposition. Binder, a new alloy production technology that is finally sintered into a dense product. In recent years, with the development of methods for manufacturing complex-shaped metal or ceramic sintered bodies, PIM technology has been applied to more and more fields, especially MIM (Metal Injection Molding, metal injection molding) and CIM (Ceramic Injection Molding ceramics Injection molding) is used in the molding process of various structural parts and specia...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F3/105B22F3/115
Inventor 宋佳
Owner DONGGUAN YIHAO METAL MATERIAL TECH CO LTD