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Exhaust method for powder pressing formation

A technology of press molding and exhaust method, applied in the field of mold parts, can solve the problems of short service life of mandrels and connecting rods, and achieve the effect of long service life and ensuring uniformity

Inactive Publication Date: 2017-04-05
夏树伟
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a kind of exhaust method of powder compaction, to solve the problem of short service life of mandrel and connecting rod in the stamping process of powder products

Method used

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  • Exhaust method for powder pressing formation

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Embodiment 1

[0017] Such as figure 1 As shown, the exhaust method of powder compaction molding in the present invention includes a base 1, the base 1 is a part connected to the punching machine, driven by the punching machine, the base 1 is used to connect the punch 2 and the punching machine, the base The seat 1 is a cylinder as a whole, and its interior is a cylindrical cavity. A punch 2 is connected to the base 1. The punch 2 is a hollow cylinder, and its interior is a cavity structure. There is an exhaust hole 3 communicating with the inner cavity of the punch 2, a protective ring 4 is provided between the punch 2 and the base 1, the protective ring 4 is set on the punch 2, and the punch 2 and the base 1 A buffer zone is formed between the connecting parts to prevent the metal from flying around and hurting the human body after the explosion of the punch caused by excessive pressure when the product is pressed. Preferably, a plastic sleeve with certain elasticity is used as a protectiv...

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Abstract

The invention discloses an exhaust method for powder pressing formation. The exhaust method for powder pressing formation comprises a base; the base is connected with a convex mold; the convex mold is a hollow cylinder; and the base is provided with an exhaust hole communicated with an internal cavity of the convex mold. In the exhaust method for powder pressing formation, air between a concave mold and the convex mold is exhausted from the exhaust hole in the base after passing through the internal cavity of the convex mold; the air in powder can be exhausted without drilling a hole in the concave mold, so that the convex mold can be directly connected to the base, the procedure of opening the convex mold is saved, meanwhile, the uniformity of the convex mold is guaranteed, and the life of the convex mold is longer; and a protecting ring is arranged between the convex mold and the base for coating the convex mold to prevent human body injury caused by metal splashing after explosion of the convex mold due to excessive pressure in product pressing.

Description

technical field [0001] The invention relates to a mold part of a fully automatic powder product hydraulic press, in particular to an exhaust method for powder press molding. Background technique [0002] Powder metallurgy is a process technology for producing metal or using metal powder (or a mixture of metal powder and non-metal powder) as raw material, forming and sintering to manufacture metal materials, composites and various types of products. Powder metallurgy has unique chemical composition and mechanical and physical properties, which cannot be obtained by traditional casting methods. The use of powder metallurgy technology can directly make porous, semi-dense or fully dense materials and products, such as oil bearings, gears, cams, guide rods, knives, etc., which is a less cutting process. 1 Powder metallurgy technology can minimize the segregation of alloy components and eliminate coarse and uneven casting structures. In the preparation of high-performance rare e...

Claims

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Application Information

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IPC IPC(8): B22F3/03
Inventor 夏树伟
Owner 夏树伟
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