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Pump machining technology

A processing technology and pump body technology, applied in metal processing equipment, manufacturing tools, casting molding equipment, etc., can solve the problems of low casting quality, pollution, high energy consumption, etc., achieve the effect of improving production efficiency and overcoming many processes

Inactive Publication Date: 2015-11-04
JIANGSU YAOYAO CASTING IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the high level of domestic foundry production technology is limited to a few backbone enterprises, the overall technical level of the industry is backward, the quality of castings is low, the consumption of materials and energy is high, the economic benefit is poor, the working conditions are harsh, the pollution is serious, and the degree of mechanization is not high. For the production technology level of the foundry production department, it has become an urgent task to adopt and develop advanced, efficient, economical and environmentally friendly casting technology to improve the production efficiency of the enterprise, the yield of casting products and production efficiency, and to reduce energy consumption and waste emissions. An important proposition related to the survival of enterprises

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A pump body processing technology is characterized in that: its production method is as follows:

[0017] 1) The fixed mold and the movable mold keep in contact to form a cavity, and lock the closed mold;

[0018] 2) There is a channel connected to the vacuum pump on the fixed mold, and the vacuum pump pumps out the air in the cavity to form a vacuum in the cavity;

[0019] 3) The molten metal is poured into the cavity, and the poured molten metal enters the runner, the inner runner in turn through the sprue, and then enters the cavity for bottom pouring;

[0020] 4) When the poured molten metal reaches the top of the riser from bottom to top, the pouring is completed, and the heating agent is added to the riser;

[0021] 5) After the casting is completely cooled, open the mold;

[0022] 6) Heat treatment after cleaning the sand and removing the riser.

Embodiment 2

[0024] A pump body processing technology is characterized in that: its production method is as follows:

[0025] 1) The fixed mold and the movable mold keep in contact to form a cavity, and lock the closed mold;

[0026] 2) There is a channel connected to the vacuum pump on the fixed mold, and the vacuum pump pumps out the air in the cavity to form a vacuum in the cavity;

[0027] 3) The molten metal is poured into the cavity, and the poured molten metal enters the runner, the inner runner in turn through the sprue, and then enters the cavity for bottom pouring;

[0028] 4) When the poured molten metal reaches the top of the riser from bottom to top, the pouring is completed, and the heating agent is added to the riser;

[0029] 5) After the casting is completely cooled, open the mold;

[0030] 6) Heat treatment after killing and removing the riser.

[0031] The injection speed of the molten metal in the step 3) is 2.4-3.0m / s, and the rest of the steps...

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Abstract

The invention relates to a pump machining technology. The production method of the pump machining technology comprises the steps that a fixed mold and a movable mold keep in contact with each other to form a cavity, and a combined mold is locked; the fixed mold is provided with a channel connected with a vacuum pump, the vacuum pump pumps air in the cavity out, and then the cavity is vacuum; molten metal is poured into the cavity, and the poured molten metal sequentially enters a horizontal runner and an inner runner from a sprue and then enters the cavity for bottom pouring; when the poured molten metal reaches the top of a riser from bottom to top, pouring is completed, and then an exothermic compound is added into the riser; after a casting is completely cooled, the mold is opened; after cleaning and de-gating, heat treatment is conducted. The pump machining technology is simple, practicable and reliable, and the quality of the pumps produced according to the pump machining technology is substantially improved.

Description

technical field [0001] The invention relates to the field of pump body processing, in particular to a pump body processing technology. Background technique [0002] At present, the high level of domestic foundry production technology is limited to a few backbone enterprises, the overall technical level of the industry is backward, the quality of castings is low, the consumption of materials and energy is high, the economic benefit is poor, the working conditions are harsh, the pollution is serious, and the degree of mechanization is not high. For the production technology level of the foundry production department, it has become an urgent task to adopt and develop advanced, efficient, economical and environmentally friendly casting technology to improve the production efficiency of the enterprise, the yield of casting products and production efficiency, and to reduce energy consumption and waste emissions. An important proposition related to the survival of the enterpris...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C9/24B22C9/08
Inventor 李建成
Owner JIANGSU YAOYAO CASTING IND
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