Alloy die-casting process

A die-casting process and alloy technology, applied in the field of alloy die-casting process, can solve the problems of insufficient control of pressure, temperature and time, low qualified rate of finished products, rough products, etc. Effect

Inactive Publication Date: 2017-12-22
东莞市鸿威精密五金制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The main defects of the die-casting process in the prior art are: the qualified rate of finished products is low, mainly because the control of pressure, temperature and time is not good enough, the products produced are rough and of low quality

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0020] The invention provides an alloy die-casting process, specifically comprising the following steps:

[0021] (1). Alloy smelting: Add the following materials into an electric furnace and heat them to 600°C for annealing. The composition of the materials is (in parts by weight):

[0022] 2.5 parts of carbon; 0.032 parts of vanadium; 2.2 parts of silicon; 0.065 parts of phosphorus; 0.015 parts of nitrogen; 0.015 parts of sulfur; 2.0 parts of magnesium; 0.05 parts of titanium; share;

[0023] (2). Electromagnetic stirring: move the alloy melt in step (1) into the holding furnace, apply an electromagnetic field to the alloy melt, make the alloy melt generate an induced eddy current, implement electromagnetic stirring, and keep the temperature in the holding furnace at 700 ℃;

[0024] (3). Mold closing and oxygen injection: the mold is closed to form a cavity and runner, inject oxygen into the injection chamber and cavity of the die-casting mold through the air injection hol...

Embodiment approach 2

[0029] The invention provides an alloy die-casting process, specifically comprising the following steps:

[0030] (1). Alloy smelting: Add the following materials into an electric furnace and heat them to 670°C for annealing. The composition of the materials is (in parts by weight): 2.85 parts of carbon; 0.042 parts of vanadium; 2.35 parts of silicon; 0.07 parts of phosphorus ; 0.018 parts of nitrogen; 0.0165 parts of sulfur; 2.5 parts of magnesium; 0.075 parts of titanium; 0.2 parts of manganese; 0.27 parts of bismuth; 0.5 parts of gadolinium;

[0031] (2). Electromagnetic stirring: move the alloy melt in step (1) into the holding furnace, apply an electromagnetic field to the alloy melt, make the alloy melt generate an induced eddy current, implement electromagnetic stirring, and keep the temperature in the holding furnace at 715 ℃;

[0032] (3). Mold closing and oxygen injection: the mold is closed to form a cavity and runner, inject oxygen into the injection chamber and c...

Embodiment approach 3

[0037] The invention provides an alloy die-casting process, specifically comprising the following steps:

[0038] (1). Alloy smelting: Add the following materials into an electric furnace and heat them to 750°C for annealing. The composition of the materials is (in parts by weight):

[0039] 3 parts carbon; 0.052 parts vanadium; 2.5 parts silicon; 0.075 parts phosphorus; 0.02 parts nitrogen; 0.018 parts sulfur; 3.0 parts magnesium; 0.1 parts titanium; 0.25 parts manganese; share;

[0040] (2). Electromagnetic stirring: move the alloy melt in step (1) into the holding furnace, apply an electromagnetic field to the alloy melt, make the alloy melt generate an induced eddy current, implement electromagnetic stirring, and keep the temperature in the holding furnace at 720 ℃;

[0041] (3). Mold closing and oxygen injection: the mold is closed to form a cavity and runner, inject oxygen into the injection chamber and cavity of the die-casting mold through the air injection hole, and...

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PUM

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Abstract

The invention provides an alloy die-casting process, which specifically includes the following process steps: alloy smelting, electromagnetic stirring, mold clamping, oxygen injection, die-casting, mold opening, and part delivery. Temperature of machine is 180°C, mold preheating time is 50min, injection low speed is 92%, booster position is 300mm, booster speed is 60%, injection stop is 150min, injection time is 5s, cooling time is 10s, booster pressure is 60MPa and mold adjustment The pressure is 21 MPa, and the die-casting machine is started for die-casting under the above-mentioned setting die-casting process parameters. In the present invention, different elements are combined and smelted into an alloy, and then die-cast according to the set pressure, temperature and time, which not only improves the qualified rate of finished products, but also improves the quality of the product.

Description

technical field [0001] The invention relates to the technical field of die-casting technology, in particular to an alloy die-casting technology. Background technique [0002] The die-casting process is a process of organically combining the three major elements of die-casting machine, die-casting mold and alloy and using them comprehensively. The process of metal filling the cavity during die casting is a process of unifying process factors such as pressure, speed, temperature and time. At the same time, these technological factors influence each other, restrict each other, and complement each other. Only by correctly selecting and adjusting these factors to make them coordinated can the expected results be obtained. Therefore, in the process of die-casting, not only attention should be paid to the manufacturability of the casting structure, the advanced nature of the die-casting mold, the performance and structure of the die-casting machine, the adaptability of the die-ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D17/00C22C37/10
CPCB22D17/00C22C37/10
Inventor 张作坚
Owner 东莞市鸿威精密五金制品有限公司
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