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High pressure casting method with broken speed injection

A high-pressure casting and slow-speed injection technology, which is applied in the field of aluminum alloy castings, can solve the problems of many pores and high defective rate of products

Active Publication Date: 2022-02-11
CHONGQING BAIJI SIXING DIE CASTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional die-casting process is to perform high-speed injection immediately after slow-speed injection, but this process has the defect of high defect rate due to many pores in the product

Method used

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  • High pressure casting method with broken speed injection
  • High pressure casting method with broken speed injection
  • High pressure casting method with broken speed injection

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Experimental program
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Effect test

Embodiment 1

[0027] Broken speed, high pressure casting method, on the die casting machine, including two processes of slow embossed and high speed, and then pause TS after the slow-voltage process is completed, and then high-speed irradiation. T ≤ 1s in this embodiment, specifically, according to different cast products, T = 0.1-0.4s. The distance between the slow-embjsmine is 0-650 mm, and the present embodiment is 650 mm. During the high-speed injection process, the distance is 0-100 mm, and the present embodiment is 100 mm, which is thus passed by slow embossed and rapidly, the total distance of the embossed is 750 mm. The slow-embedded time is 0-6s, and the present embodiment is 6 s.

[0028]It is easy to understand that for the setting of the pause time, the PLC program can be modified on the die-casting machine to reach the slow-rotating, and then the rapid embure is performed after a period of time.

[0029] The die-casting process in this embodiment increases the pressure suspension t...

Embodiment 2

[0037] Embodiment 1 is a break-up pressure high pressure casting by changing the die casting machine PLC program. In this embodiment, the purpose of changing the mechanical structure of the die-casting machine reaches the breakage of the high pressure casting.

[0038] Combine figure 1 As shown, the die-casting machine includes a compartment 1 and a cavity in which the row chamber 1 and the lower left end and the mold of the press chamber 1 are slidably connected to the punch 2, the right side of the punch 2. The soldering push rod 4 is welded, and the feed port 3 on the left side of the press chamber 1 is provided, and the aluminum alloy liquid can be entered into the compartment 1 by the feed port 3.

[0039] The inside of the driving case 5 is provided with a chamber. The right end of the driving case 5 is provided with an oil supply opening 11 for enterting the hydraulic oil into the driving case 5, and the inside of the driving case 5 has a first piston 7, the driver box 5 Th...

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Abstract

The invention relates to the field of aluminum alloy castings, in particular to a high-pressure casting method with broken-speed injection, which includes two processes of slow-speed injection and high-speed injection. shot; T≤1s. This solution reduces the number of pores in the casting and improves the mechanical properties.

Description

Technical field [0001] The present invention relates to the field of aluminum alloy castings, and more particularly to a method of breaking the high voltage casting. Background technique [0002] Most of the aluminum alloy castings are cast by die casting machines. The die-casting machine is a series of industrial casting machines that collect the molten metal hydraulic to the mold under pressure. The die-casting machine typically includes a compartment, a mold and a punch, and one end of the compartment is in communication with the cavity of the mold, and the other end of the press chamber is provided with a metal solution into the pressing port, and the punch is slidably connected in the compartment, A push rod is connected to the punch, and the push push the punch is moved in the pressing chamber, and the punch is pressed into the cavity of the metal chamber to the mold, and then the metal solution in the mold is cooled to form a casting. [0003] The traditional die-casting p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D17/20
CPCB22D17/2053
Inventor 冉志刚张超
Owner CHONGQING BAIJI SIXING DIE CASTING