Steel alloy, compressor slide sheet and preparation method of compressor slide sheet

A steel alloy and compressor technology, applied in the field of compressors, can solve problems such as tip wear, high process cost, and high raw material cost

Active Publication Date: 2014-01-15
ANHUI MEIZHI PRECISION MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the sliding vane is one of the important components of the compressor. The two sides of the sliding vane need to bear the load P generated by the pressure difference, and the R surface of the tip must be in close contact with the high-speed rotating rolling piston, and the contact is a line contact, which is in a state of boundary lubrication. , causing the tip to be prone to wear
Especially with the use of new refrigerants at present, the working pressure of the compressor has been greatly increased, such as CO 2 Its working pressure is higher than that of R410A refrigerant compressors, and it has further higher requirements on the strength, wear resistance, fatigue resistance and service life of the sliding vanes. The stainless steel-based sliding vanes can no longer meet the requirements of high-load compressors. Wear resistance requirements, need to use high-speed steel as the base material to meet the use requirements, currently the most widely used M2 high-speed steel, the content of precious alloy elements is high, the cost of raw materials is high, and the quenching temperature reaches 1200-1400 degrees Celsius, the process cost is relatively high high

Method used

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  • Steel alloy, compressor slide sheet and preparation method of compressor slide sheet
  • Steel alloy, compressor slide sheet and preparation method of compressor slide sheet
  • Steel alloy, compressor slide sheet and preparation method of compressor slide sheet

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] 1. Carry out smelting and casting according to the following composition to obtain a steel ingot: 1.0% by weight of C, 0.8% by weight of Si, 1.0% by weight of Mn, 1.2% by weight of Mo, 7.0% by weight of Cr, 2.3% by weight of W, 0.6% by weight % of V, 0.8% by weight of Al, of which P≤0.03% by weight, S≤0.03% by weight, and the rest is Fe;

[0039] 2. Anneal the obtained smelted product (steel ingot) before hot rolling, wherein the annealing furnace temperature is 910 degrees Celsius, the annealing speed is 30 degrees Celsius per minute, and the hardness is 255HB;

[0040] 3. According to the precision required by the width and height of the slide, the annealed steel ingot is forged and then hot-rolled into a strip plate;

[0041] 4. Cut into sliding pieces according to the size requirements, and mill grooves;

[0042] 5. Quenching and tempering the cut slides in turn;

[0043] Quenching treatment: furnace temperature 1100 degrees Celsius, holding time 8 minutes; temper...

Embodiment 2

[0049] 1. The sliding sheet of this embodiment is smelted and cast according to the following composition to obtain a steel ingot: 0.9% by weight C, 1.6% by weight Si, 1.3% by weight Mn, 1.0% by weight Mo, 7.0% by weight Cr, 2.2% by weight W, 0.6% by weight V, 0.9% by weight Al, 0.01% by weight Re, wherein P≤0.03% by weight, S≤0.03% by weight, and the rest is Fe.

[0050] 2. Anneal the obtained smelted product (steel ingot) before hot rolling, wherein the annealing furnace temperature is 890 degrees Celsius, the annealing speed is 16 degrees Celsius per minute, and the hardness is 260HB;

[0051] 3. According to the precision required by the width and height of the slide, the annealed steel ingot is forged and then hot-rolled into a strip plate;

[0052] 4. Cut into sliding pieces according to the size requirements, and mill grooves;

[0053] 5. Quenching and tempering the cut slides in turn;

[0054] Quenching treatment: furnace temperature 1090 degrees Celsius, holding tim...

Embodiment 3

[0057] 1. The sliding sheet of this embodiment is smelted and cast according to the following composition to obtain a steel ingot: 0.9% by weight C, 1.5% by weight Si, 1.0% by weight Mn, 1.0% by weight Mo, 6.0% by weight Cr, 2.2% by weight W, 0.6% by weight V, 0.4% by weight Al, 0.08% by weight B, 0.3% by weight Ti, wherein P≤0.03% by weight, S≤0.03% by weight, and the rest is Fe.

[0058] Steps 2-5 are the same as steps 2-5 in Example 1.

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Abstract

The invention provides steel alloy, a compressor slide sheet and a preparation method of the compressor slide sheet, a compressor, and refrigeration equipment. The steel alloy comprises 0.8 to 1.5wt% of C, 0.2 to 2.0 wt% of Si, 0.2 to 2.2 wt% of Mn, 0.5 to 3wt% of Mo, 3.5 to 8 wt% of Cr, 1.0 to 3 wt% of W, 0.4 to 1.6 wt% of V, 0.2 to 1.2wt% of Al, and the balance Fe. The steel alloy possesses advantages such as high strength, high wear resistance, high fatigue durability and long service life.

Description

technical field [0001] The invention relates to the technical field of compressors. In particular, the invention relates to steel alloys, compressor vanes and methods of making the same. Background technique [0002] Rotary compressors are widely used due to their high efficiency, small size and light weight. Among them, the sliding vane is one of the important components of the compressor. The two sides of the sliding vane need to bear the load P generated by the pressure difference, and the R surface of the tip must be in close contact with the high-speed rotating rolling piston, and the contact is a line contact, which is in a state of boundary lubrication. , causing the tip to be extremely prone to wear. Especially with the use of new refrigerants at present, the working pressure of the compressor has been greatly increased, such as CO 2 Its working pressure is higher than that of R410A refrigerant compressors, and it has higher requirements on the strength, wear resi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/38C22C38/34C22C38/24C22C38/28C22C38/32C21D1/18F04C29/00
Inventor 夏小鸽
Owner ANHUI MEIZHI PRECISION MFG
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