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Die casting method of dry aluminium alloy double-clutch valve body

A double-clutch, aluminum alloy technology, applied in the field of die-casting, can solve the problems of high cost and high scrap rate, achieve the effects of fine purity, improve production efficiency, and reduce internal slag inclusions and pore defects

Inactive Publication Date: 2016-09-28
苏州梅克卡斯汽车科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] This kind of casting is the first research and development in China. Before this product was cast and processed abroad, the main problems of foreign products are as follows: 1. The internal quality defect of the product is the internal pores of the product, the scrap rate is high, and the pass rate is about 30% % or so; 2. High cost

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  • Die casting method of dry aluminium alloy double-clutch valve body

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] A die-casting method for an aluminum alloy dry double clutch valve body, comprising the following steps:

[0044] (1) The weight ratio is 8% Si, 0.05% Mg, 1.0% Fe, 2.0% Cu, 0.25% Mn, 0.25% Ni, 0.6% Zn, 0.15% Pb, 0.1% Sn; 0.1% Ti, 0.05% Cr, and the rest being Al are added to the die-casting melting furnace;

[0045] (2) The melting temperature of the die-casting melting furnace is set to 710°C, and the die-casting melting furnace starts to heat up, and when the temperature of the die-casting melting furnace rises to 710°C, add Huasheng block non-toxic refining with an amount of 0.2% of the total weight of the material Modifiers for refining;

[0046] (3) While adding the refining modificator in step (2), use a degasser to carry out a degassing operation with 99.99% argon for 3 minutes, take a sample, and use a spectral analysis device to detect the composition of the sample, if the composition is qualified Stand still for 8 minutes to prepare for die casting;

[0047]...

Embodiment 2

[0053] A die-casting method for an aluminum alloy dry double clutch valve body, comprising the following steps:

[0054] (1) 11% of Si, 0.55% of Mg, 1.5% of Fe, 4.0% of Cu, 0.55% of Mn, 0.55% of Ni, 1.2% of Zn, 0.35% of Pb, 0.25% of Sn; 0.25% Ti, 0.15% Cr, and the rest being Al are added to the die-casting melting furnace;

[0055] (2) The melting temperature of the die-casting melting furnace is set to 740°C, and the die-casting melting furnace starts to heat up, and when the temperature of the die-casting melting furnace rises to 730°C, add Huasheng block non-toxic refining with an amount of 0.6% of the total weight of the material Modifiers for refining;

[0056] (3) While adding the refining modificator in step (2), use a degasser to carry out a degassing operation with 99.99% argon for 15 minutes, take a sample, and use a spectral analysis device to detect the composition of the sample, if the composition is qualified Stand still for 15 minutes to prepare for die castin...

Embodiment 3

[0063] A die-casting method for an aluminum alloy dry double clutch valve body, comprising the following steps:

[0064] (1) The weight ratio is 10% Si, 0.25% Mg, 1.0% Fe, 1.5% Cu, 0.50% Mn, 0.50% Ni, 0.8% Zn, 0.25% Pb, 0.15% Sn; 0.15% Ti, 0.1% Cr, and the rest being Al are added to the die-casting melting furnace;

[0065] (2) The melting temperature of the die-casting melting furnace is set to 720°C, and the die-casting melting furnace starts to heat up, and when the temperature of the die-casting melting furnace rises to 710°C, add Huasheng block non-toxic refining with an amount of 0.3% of the total weight of the material Modifiers for refining;

[0066] (3) While adding the refining modificator in step (2), use a degasser to carry out a degassing operation with 99.99% argon for 20 minutes, take a sample, and use a spectral analysis device to detect the composition of the sample, if the composition is qualified Stand still for 10 minutes to prepare for die casting;

[0...

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Abstract

The invention relates to a die casting method of a dry aluminium alloy double-clutch valve body. The die casting method comprises the steps of fusing materials; conducting die casting; automatically taking out semi-finished products from a die casting machine; conducting cutting, cleaning, shot blasting, machining, high-pressure cleaning, deburring, ECM deburring and ultrasonic cleaning after cooling; conducting leak detection on the semi-finished products; conducting final cleaning and drying after detection is qualified; and conducting final examination to obtain a product. According to the die casting method of the dry aluminium alloy double-clutch valve body, through a modern simulation means (mold flow analysis), the development cost is greatly lowered; the percent of pass of products is high; the porosity is better than that of common process design, the filling process of the products is stable; the quality is improved, and the service life of molds is greatly prolonged at the same time; the first-time percent of pass of the products is 92% which is far higher than the 30% developed in the foreign countries; and automatic peripheral equipment solves the problem of low production efficiency, about 20% of capacity is improved, and meanwhile the labor intensity is lowered.

Description

technical field [0001] The invention relates to the field of die-casting, and more specifically, relates to a die-casting method of an aluminum alloy dry double clutch valve body. Background technique [0002] The dual-clutch valve body is the key component of the most advanced AT dual-clutch automatic transmission in the world today. This design is energy-saving and environmentally friendly, and can save 10% of fuel compared with ordinary structures. The latest 7-speed DSG (dual-clutch) gearbox has guiding significance for the development of future automotive dual-clutch systems. It brings a flexible, sporty and comfortable driving experience. Since Volkswagen launched the 6-speed DSG dual-clutch automatic transmission on the market in 2003, it has opened a new era of transmissions. This achievement is not only achieved by Volkswagen’s great investment in new technologies, but also with the vigorous efforts of parts manufacturers in the field of new technologies. Expansion...

Claims

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Application Information

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IPC IPC(8): C22C21/02C22C1/02C22C1/06B22D17/22B22D17/20
CPCC22C21/02B22D17/2007B22D17/2218C22C1/026C22C1/06
Inventor 张晓
Owner 苏州梅克卡斯汽车科技有限公司
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