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Special aluminum alloy for automobile transmission pump bodies and preparation method thereof

An automobile transmission, aluminum alloy technology, applied in the field of aluminum alloy and its preparation, aluminum alloy for automobile transmission pump body and its preparation, can solve the problems of wear resistance, tensile strength, thermal crack resistance, poor filling ability, etc. problem, to achieve clear outline, fine distribution of crystalline silicon, and improve the effect of tensile strength

Inactive Publication Date: 2015-02-18
GUANGZHOU LIZHONG JINSHAN ALLOY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing aluminum alloy materials used for casting automotive transmission pump bodies have deficiencies in wear resistance, tensile strength, thermal crack resistance, and poor filling ability

Method used

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  • Special aluminum alloy for automobile transmission pump bodies and preparation method thereof

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Effect test

Embodiment 1

[0023] Embodiment 1 takes the raw materials of the following weight ratio: 70% of the original aluminum ingot, 17% of silicon, 3.8% of pure metal copper, 0.6% of pure metal magnesium, 5.8% of AlFe10 master alloy, 1% of zinc parts, 1.2% of aluminum-phosphorus alloy, Phosphorus-rich alloy 0.6%; the primary aluminum ingot is Al 99.70, that is, the A00 aluminum ingot containing 99.70% purity of aluminum, and the following steps are adopted to realize the present invention:

[0024] (1) Smelting: first put the silicon on the bottom of the melting furnace, then cover the silicon with the original aluminum ingot, then put in the rest of the raw materials except pure magnesium in turn, and then heat up the melting furnace, when the temperature reaches 850~ At 860°C, use a stirring device to stir the melt evenly to make aluminum alloy melt;

[0025] (2) Refining and standing: Introduce the aluminum alloy melt in the melting furnace into the alloy furnace, use high-purity nitrogen to sp...

Embodiment 2

[0028]Embodiment 2 gets the raw material of following weight ratio: 70% of primary aluminum ingot, 17% of silicon, 3.8% of pure metal copper, 0.6% of pure metal magnesium, 5.8% of AlFe10 master alloy, 1% of zinc part, aluminum-phosphorus alloy 1.2%, Phosphorus-rich alloy 0.6%; the primary aluminum ingot is Al 99.70, that is, the A00 aluminum ingot containing 99.70% purity of aluminum, and the following steps are adopted to realize the present invention:

[0029] (1) Smelting: first put the silicon on the bottom of the melting furnace, then cover the silicon with the original aluminum ingot, then put in the rest of the raw materials except pure magnesium in turn, and then heat up the melting furnace, when the temperature reaches 850~ At 860°C, use a stirring device to stir the melt evenly to make aluminum alloy melt;

[0030] (2) Refining and standing: Introduce the aluminum alloy melt in the melting furnace into the alloy furnace, use high-purity nitrogen to spray the refining...

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Abstract

The invention discloses a special aluminum alloy for automobile transmission pump bodies and a preparation method thereof. The aluminum alloy is composed of the following components in percentage by mass: 16.50-17.00% of Si, at most 1.00% of Fe, 0.55-0.60% of Mg, 4.30-4.60% of Cu, at most 0.45% of Mn, 0.50-1.30% of Zn, at most 0.09% of Ni, at most 0.09% of Ti, at most 0.09% of Pb, at most 0.003% of Ca, at most 0.002% of Na, 0.006-0.015% of P and the balance of Al. The preparation method comprises the following steps: smelting primary aluminum ingot, silicon, pure metal copper, pure metal magnesium, AlFe10 interalloy, zinc part, aluminum-phosphorus alloy and phosphorus-rich alloy, refining, standing and casting. The aluminum alloy material is specially used for preparing automobile transmission pump bodies, has the advantages of higher wear resistance, higher tensile strength, higher thermal cracking resistance and high mold-filling capacity, and can prolong the service life of the automobile transmission pump bodies.

Description

technical field [0001] The invention relates to an aluminum alloy and a preparation method thereof, in particular to an aluminum alloy specially used for an automobile transmission pump body and a preparation method thereof, and belongs to the technical field of aluminum alloy material production. Background technique [0002] Aluminum alloy materials are the most widely used non-ferrous metal structural materials in the industry, and have been widely used in aviation, aerospace, automobiles, machinery manufacturing, shipbuilding and chemical industries. According to the processing method, aluminum alloy can be divided into two categories: deformed aluminum alloy and cast aluminum alloy. Aluminum alloy has low density, but relatively high strength, which is close to or exceeds high-quality steel. It has good plasticity and can be processed into various profiles. It has excellent electrical conductivity, thermal conductivity and corrosion resistance. It is widely used in indu...

Claims

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Application Information

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IPC IPC(8): C22C21/02C22C1/03
Inventor 臧立根
Owner GUANGZHOU LIZHONG JINSHAN ALLOY
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