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Casting method capable of effectively improving quality of aluminum alloy casting parts

An aluminum alloy casting, quality technology, applied in foundry equipment, manufacturing tools, metal processing equipment and other directions, can solve the problem of temperature drop of aluminum liquid in filling, and achieve the effect of stable filling, low static pressure, and favorable removal.

Inactive Publication Date: 2008-08-13
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, the cost of continuous adjustment in the development stage is low, but the ordinary metal mold gravity casting process has its own technical difficulties, such as: filling problems, feeding problems, temperature drop of molten aluminum during pouring, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Embodiment 1: First, computer simulation is carried out on the filling process and casting solidification of A356 aluminum alloy parts, and the optimal pouring process parameters are obtained by comparing the simulation results: the inclination rate in the range of inclination angle 0-50 degrees is 6-8 degrees / S, The rate of inclination in the range of 50-70 degrees of inclination angle is 3-5 degrees / S, and the above parameters are converted into command parameters by computer programming. According to the simulation results, the part can achieve progressive solidification without the need for a corresponding cooling system. The A356 aluminum alloy ingredients to be poured are first melted and refined, and the resulting aluminum liquid is kept at a temperature of 680-720 degrees after being deteriorated and degassed, and then transferred to the heat preservation tundish, and the device is opened for pouring. Uniform, according to the simulation results of the previous ...

Embodiment 2

[0021] Embodiment 2: Same as above, first carry out computer simulation on the A356 aluminum alloy parts for filling process and casting solidification, and compare the simulation results to obtain the optimal pouring process parameters: the inclination rate in the range of inclination angle 0-35 degrees is 7-9 degrees / S , the rate of inclination in the range of 35-50 degrees of inclination is 9-11 degrees / S, the rate of inclination in the range of 50-75 degrees of inclination is 3-5 degrees / S, and the above parameters are converted into command parameters by computer programming. According to the simulation results, cooperate with the corresponding cooling system at the hot joint, melt and refine the A356 aluminum alloy ingredients to be cast first, and the obtained aluminum liquid is kept at a temperature of 680-720 degrees after deterioration and degassing, and then transferred to heat preservation In the tundish, the opening device is used for pouring. Since the thickness o...

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PUM

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Abstract

Then invention relates to a casting method for improving aluminum alloy cast quality effectively, pertaining to metal casting technique field, comprising: analog designing product pouring with a computer software, adapted with corresponding heating, cooling solidification control system, thereby selecting optimal pouring technique to solidifying the cast gradually, so that obtaining aluminum alloy casts with little casting flaw and good surface quality. According to the invention, the pouring mould varies the tilt state of the thermal insulation pouring box and the pouring mould continuously, and the mould cavity is filled along with the variety of the tilt state to implement the pouring process according to the control instruments sent by the computer control chip. The invented method is suitable for production of vehicle aluminum alloy parts and premium castings without shrinkage cavity areosis phenomena can be obtained.

Description

technical field [0001] The invention relates to a casting method for effectively improving the quality of aluminum alloy castings, which belongs to the technical field of metal casting technology. Background technique [0002] The production of profiles by casting is a relatively traditional method in the industry, and its application in the aluminum alloy forming process for automobiles is even more extensive. [0003] The metal mold gravity casting process is one of the most widely used casting processes at present. It is characterized by simple process, short mold manufacturing cycle and low development cost. Moreover, the cost of continuous adjustment in the development stage is low, but the ordinary metal mold gravity casting process has its own technical difficulties, such as: filling problems, feeding problems, temperature drop of molten aluminum during pouring, etc. [0004] In order to overcome the above-mentioned limitations and various defects of the casting proc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D46/00B22D21/04
CPCY02T10/40
Inventor 邵光杰杨弋涛黄龙辉刘立坤胡悦高
Owner SHANGHAI UNIV
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