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Method for die casting magnesium alloy through improving normal die casting machine to magnesium alloy die casting machine

A die-casting machine and magnesium alloy technology, applied in the field of die-casting of magnesium alloys, can solve the problems of increased production cost, unsatisfactory, high price, and achieve the effect of low production cost and full casting.

Inactive Publication Date: 2009-07-22
SHENYANG POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But the price is much higher than that of ordinary die-casting machines, which increases the production cost, which is not ideal

Method used

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  • Method for die casting magnesium alloy through improving normal die casting machine to magnesium alloy die casting machine
  • Method for die casting magnesium alloy through improving normal die casting machine to magnesium alloy die casting machine
  • Method for die casting magnesium alloy through improving normal die casting machine to magnesium alloy die casting machine

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Embodiment Construction

[0022] The diameter of the punch of the ordinary die casting machine is

[0023] d 2 = n V d 1 , n = 2.5 ~ 3.1 - - - ( 1 )

[0024] Carry out transformation, where: d 1 Is the original punch diameter of die casting machine; d 2 Is the punch diameter of the die-casting machine after transformation; V is the injection speed of the die-casting machine.

[0025] In the production of magnesium alloy die castings, the pouring temperature is 650°C to 690°C, and the mold preheating temperature is 180°C to 240°C.

[0026] The specific example is Example 1: When the diameter of the ordinary die-casting punch is increased by XXXmm compared with the punch before transformation, the magnesium alloy grade is AM60B, and its c...

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Abstract

A method for transforming an ordinary die-casting machine into a magnesium alloy die-casting machine for die-casting magnesium alloy, the punch diameter is calculated according to formula (1), d2=vd1 n=2.5~3.1 where d1 is the original punch diameter of the die-casting machine; d2 is The punch diameter of the modified die-casting machine; V is the injection speed of the die-casting machine, and its use method is determined according to formula (2): t=0.0346((tm-tf+2.5S) / (tf-td))δ, formula Middle: t filling time, tm pouring temperature, tf minimum flow temperature, td mold preheating temperature, S maximum uninterrupted pouring solid block content, δ casting average wall thickness, where the pouring temperature is selected as 650℃~690℃ , The mold preheating temperature is selected as 180°C to 240°C, the invention has low production cost and is easy to operate.

Description

Technical field [0001] The invention relates to a magnesium alloy die-casting technology, and in particular provides a method for transforming an ordinary die-casting machine into a magnesium alloy die-casting machine to die-cast magnesium alloy. Background technique [0002] Die casting is the abbreviation of pressure casting, and its essence is to fill the die-casting cavity with liquid or semi-liquid metal at a higher speed under the action of high pressure, and solidify under pressure to obtain castings. [0003] Die casting is one of the most advanced metal forming methods. It is an effective way to achieve less chips and no chips. It is widely used and developed rapidly. The die casting process is not only suitable for non-ferrous metals such as zinc, aluminum, magnesium and copper, but also for die casting iron and steel castings. The size and weight of the die casting depends on the power of the die casting machine. As the power of the die casting machine continues to inc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D17/04
Inventor 毛萍莉刘正王峰林立
Owner SHENYANG POLYTECHNIC UNIV