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Aluminium alloy material for manufacturing cylinder block of refrigerator compressor

An aluminum alloy material and technology for refrigerator compressors, which are applied in the field of aluminum alloy materials for manufacturing refrigerator compressor cylinder blocks, can solve problems such as unsatisfactory corrosion resistance, improve corrosion resistance and welding performance, and refine recrystallization structure. , the effect of reducing the secondary crystal spacing

Inactive Publication Date: 2017-08-22
HEFEI JINTONGWEI LOW TEMPERATURE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the defects in the prior art, the object of the present invention is to provide an aluminum alloy material for manufacturing refrigerator compressor cylinder blocks, so as to overcome the unsatisfactory corrosion resistance of the existing refrigeration equipment lining materials

Method used

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Examples

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Effect test

preparation example Construction

[0081] Preferably, the preparation method of the aluminum alloy material used to manufacture the cylinder block of a refrigerator compressor comprises the following steps:

[0082] Step (1): Add industrially pure manganese, industrially pure antimony, industrially pure silicon, industrially pure niobium, industrially pure molybdenum, industrially pure nickel, industrially pure vanadium, and industrially pure magnesium into the boiler for melting at 450-470°C. Keep it for 35-40 minutes to remove impurities and deoxidize, then raise the furnace temperature to 550-600°C, add rare earth, then heat to 600-610°C, and keep it for 2-3h;

[0083] Step (2): Refining again, the temperature is controlled at 680-750°C, and the time is kept at 2-4h. Nitrogen is blown and stirred throughout the process to make the chemical composition meet the component requirements. Degassing with a vacuum degassing furnace. The degassing temperature is 650-710℃, pumping time is 5-6h;

[0084] Step (3): Ca...

Embodiment 1

[0091] This embodiment provides an aluminum alloy material for manufacturing a refrigerator compressor cylinder block, including the following raw materials in parts by weight:

[0092] Manganese 30 parts,

[0093] Antimony 33 parts,

[0094] Silicon 2 parts,

[0095] Niobium 8 parts,

[0096] Molybdenum 1 part,

[0097] Nickel 11 parts,

[0098] Vanadium 7 parts,

[0099] The balance is magnesium.

[0100] The manganese is industrial pure manganese, the antimony is industrial pure antimony, the silicon is industrial pure silicon, the niobium is industrial pure niobium, the molybdenum is industrial pure molybdenum, the nickel is industrial pure nickel, the Vanadium is industrial pure vanadium, and the magnesium is industrial pure magnesium.

[0101] The preparation method of the aluminum alloy material used to manufacture the cylinder block of the refrigerator compressor, the method comprises the following steps:

[0102] Step (1): Add industrial pure manganese, indust...

Embodiment 2

[0110] This embodiment provides an aluminum alloy material for manufacturing a refrigerator compressor cylinder block, including the following raw materials in parts by weight:

[0111] Manganese 40 parts,

[0112] Antimony 20 parts,

[0113] Silicon 7 parts,

[0114] Niobium 4 parts,

[0115] Molybdenum 4 parts,

[0116] Nickel 6 parts,

[0117] Vanadium 14 parts,

[0118] The balance is magnesium.

[0119] The balance is magnesium.

[0120] The manganese is industrial pure manganese, the antimony is industrial pure antimony, the silicon is industrial pure silicon, the niobium is industrial pure niobium, the molybdenum is industrial pure molybdenum, the nickel is industrial pure nickel, the Vanadium is industrial pure vanadium, and the magnesium is industrial pure magnesium.

[0121] The preparation method of the aluminum alloy material used to manufacture the cylinder block of the refrigerator compressor, the method comprises the following steps:

[0122] Step (1): ...

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PUM

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Abstract

The invention belongs to the technical field of refrigeration equipment materials and provides an aluminium alloy material for manufacturing a cylinder block of a refrigerator compressor. The aluminium alloy material comprises the following raw materials in parts by weight: 30-40 parts of manganese, 20-33 parts of antimony, 2-9 parts of silicon, 3-8 parts of niobium, 1-5 parts of molybdenum, 5-11 parts of nickel, 7-15 parts of vanadium and the balance of magnesium. Through the scientific formula design of manganese, antimony, silicon, niobium, molybdenum, nickel, vanadium and magnesium, the corrosion resistance of the aluminium alloy material is greatly improved at a relatively low cost. The aluminium alloy material has a high price-to-performance ratio. Through a salt spray test, the aluminium alloy material has the corrosion rate of smaller than 0.1 mg / cm<2> / h<1>.

Description

technical field [0001] The invention belongs to the technical field of refrigeration equipment materials, and in particular relates to an aluminum alloy material used for manufacturing a refrigerator compressor cylinder seat. Background technique [0002] Aluminum alloy is the most widely used non-ferrous metal structural material in industry, and has been widely used in aviation, aerospace, automobile, machinery manufacturing, shipbuilding and chemical industry. With the rapid development of industrial economy, the demand for welded structural parts of aluminum alloy is increasing day by day, so that the research on weldability of aluminum alloy is also in-depth. Aluminum alloy is currently the most widely used 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 resi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C30/00C22C1/02
CPCC22C30/00C22C1/02
Inventor 武行峰
Owner HEFEI JINTONGWEI LOW TEMPERATURE TECH CO LTD
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