Aluminum brass casting outlet terminal extruding casting technology

An outlet terminal and squeeze casting technology, which is applied in the field of squeeze casting technology, can solve the problems of high production cost, difficulty in wide application, simple steps, etc., and achieve the effects of high production efficiency of castings, improved service life and low production cost

Inactive Publication Date: 2012-11-28
张年生
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The traditional extrusion casting process of aluminum and brass casting outlet terminals has simple steps, high production costs, and is difficult to be widely used. It is prone to casting defects such as shrinkage cavities and shrinkage porosity. The surface finish of castings is low and the dimensions are not accurate, which affects the use of molds. life

Method used

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Embodiment Construction

[0013] In order to deepen the understanding of the present invention, the present invention will be further described below in conjunction with examples, which are only used to explain the present invention and do not constitute a limitation to the protection scope of the present invention.

[0014] A specific embodiment of the extrusion casting process of the aluminum-brass casting outlet terminal of the present invention comprises the following steps:

[0015] A. Alloy smelting: Use a coke-heated graphite crucible to melt copper water, 50kg each time, preheat the crucible to dark red before loading, then fill in electrolytic copper and recycled copper material, heat the copper material after installation Melt and heat up to 1100-1150°C, immerse the preheated pure aluminum and zinc blocks in the crucible and stir thoroughly, then continue to heat up to 1150-1200°C, add 0.3-0.5% of JDJL 2 Ternary refining agent treatment, finally with SR-T 1 The brass flux is covered to remov...

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PUM

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Abstract

The invention discloses an extruding casting technology of an aluminum brass casting outlet terminal. The technology comprises the following steps of melting alloys; manually casting the aluminum brass casting outlet terminal through a fixed-quantity casting ladle with the casting period for each casting being one minute; using 125-MPa extrusion force of a main cylinder to shape and compact the aluminum brass casting outlet terminal and subsequently using 375-MPa extrusion force of a jacking cylinder to perform forging on the castings; making the extrusion speed of male dies for the aluminum brass casting outlet terminal 12 mm/s and the extrusion speed of a push rod 65 mm/s; controlling the dwelling time of the aluminum brass casting outlet terminal within a range between 15 seconds and 20 seconds; using a 2.5-kilowatt electrothermal ring to preheat an aluminum brass casting outlet terminal die for approximately three hours each time before a casting process and controlling a casting mold temperature between 250 degrees and 350 degrees; and spraying the working faces of female dies and male dies through a PQ-1 type spraying gun. The technology provided in the invention has the advantages of simple steps, high casting production efficiency and die service lifetime prolongation.

Description

Technical field: [0001] The invention relates to a squeeze casting process for an outlet terminal of an aluminum brass casting. Background technique: [0002] The traditional extrusion casting process of aluminum and brass casting outlet terminals has simple steps, high production costs, and is difficult to be widely used. It is prone to casting defects such as shrinkage cavities and shrinkage porosity. The surface finish of castings is low and the dimensions are not accurate, which affects the use of molds. life. Invention content: [0003] The purpose of the present invention is to overcome the above disadvantages and provide a extrusion casting process for aluminum brass casting outlet terminals with simple process steps, high casting efficiency and improved service life of the mould. [0004] The purpose of the present invention is achieved through the following technical solutions: a squeeze casting process for an aluminum brass casting outlet terminal, comprising th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D17/08
Inventor 张年生
Owner 张年生
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