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Process for manufacturing powder metallurgy pump shell

A manufacturing process, powder metallurgy technology, applied in the manufacturing process of powder metallurgy pump shells, can solve the problems of high cost, low shell efficiency, high pollution, etc., and achieve the effect of reduced production cost, reduced cost, and slight pollution

Inactive Publication Date: 2011-04-06
SUZHOU NETABHAPE COMPOSITE MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the existing manufacturing methods of various pump casings, cast iron is usually used as the rough material, and the parts are completed through rough machining, finishing and other processes. This process produces this type of casing with low efficiency, high cost, high energy consumption, and high pollution.

Method used

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Embodiment Construction

[0016] The preferred embodiments of the present invention will be described in detail below.

[0017] A manufacturing process for a powder metallurgy pump housing, the specific steps of which are:

[0018] 1) Mixing powder, cold pressing forming: mixing powder of iron, copper and carbon, cold forming the blank of the hydraulic pump shell through the powder metallurgy forming process;

[0019] 2) Sintering treatment: using the powder metallurgy sintering process, put the above-mentioned blank into a sintering furnace with an ambient temperature of 1100°C-1150°C, and perform sintering treatment for 30-40 minutes;

[0020] 3) steam treatment: put the blank after the treatment in step 2) into a closed steam treatment furnace with an ambient temperature of 450°C-650°C, and feed water vapor;

[0021] 4) Machining treatment: After sintering, the blank piece treated in step 3) is subjected to subsequent machining.

[0022] Adopting the manufacturing process of the present invention ...

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PUM

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Abstract

The invention discloses a process for manufacturing a powder metallurgy pump shell. The process for manufacturing the powder metallurgy pump shell specifically comprises the following steps of: 1) mixing powder and performing cold molding; 2) sintering; 3) performing steam processing; and 4) machining. The process for manufacturing the powder metallurgy pump shell provided by the invention is used for manufacturing cylinder shells of various pumps, the characteristic that a high-accuracy complex shape can be formed by a powder metallurgy mould at one time is utilized, the amount of machining is greatly reduced, the production efficiency is improved, and the energy consumption is reduced so as to fulfill the aim of producing products of the type by replacing the conventional casting mode.

Description

technical field [0001] The invention relates to the field of mechanical molds, in particular to a manufacturing process of a powder metallurgy pump housing. Background technique [0002] In the existing manufacturing methods of various pump casings, cast iron is usually used as the blank material, and the parts are completed through rough machining and finishing processes. This process produces this type of casing with low efficiency, high cost, high energy consumption and high pollution. Contents of the invention [0003] In order to overcome the deficiencies in the prior art, the purpose of the present invention is to provide a powder metallurgy manufacturing process for the pump casing. This invention utilizes the characteristics that the powder metallurgy mold can form high-precision complex shapes at one time, and greatly reduces the amount of machining. Improve production efficiency and reduce energy consumption. [0004] In order to solve the above-mentioned techni...

Claims

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Application Information

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IPC IPC(8): B22F3/16B22F3/24
Inventor 周进军
Owner SUZHOU NETABHAPE COMPOSITE MATERIALS
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