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A high-temperature-resistant and corrosion-resistant compressor exhaust valve plate and its preparation process

A compressor exhaust and anti-corrosion technology, applied in the field of mechanical parts manufacturing, can solve the problems of reducing the service life of the compressor, easy damage, fatigue damage, etc., achieve good high temperature resistance, solve the problem of not being easy to process, and good mechanical strength Effect

Active Publication Date: 2019-02-12
温州市建庆实业公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for a compressor used in a high-temperature working condition (thermal power and other working conditions), its working temperature is basically between 320°C and 520°C. Vinyl valves are not suitable, and stainless steel valves will also wear or fatigue the valves as the frequency of use increases, and they are easily damaged, resulting in unstable operation of the compressor and reducing the service life of the compressor. The development of the compressor field under high-temperature conditions in my country is hindered, and it is difficult to develop

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] The invention provides a high-temperature-resistant and corrosion-resistant compressor exhaust valve plate, which is processed from heat-resistant austenitic stainless steel. The heat-resistant austenitic stainless steel includes the following element components and their mass percentages: C ≤0.02%, Si≤0.5%, Mn≤7.5%, P≤0.04%, S≤0.02%, Cu≤0.75%, Ti≤1.4%, Ni 15%, Cr 18%, Mo 4%, N0.2% , the balance is Fe, and its preparation technology comprises the steps:

[0037] 1) Intermediate frequency furnace smelting:

[0038] Put iron rods and other precious metal elements into an intermediate frequency furnace for smelting, the temperature in the intermediate frequency furnace is controlled at 1650 °C, deoxidize and remove slag, and then take samples for testing;

[0039] According to the test results, add the missing precious metals to the intermediate frequency furnace, adjust the various elements in the molten steel, and after the various element indicators meet the requiremen...

Embodiment 2

[0055]The invention provides a high-temperature-resistant and corrosion-resistant compressor exhaust valve plate, which is processed from heat-resistant austenitic stainless steel. The heat-resistant austenitic stainless steel includes the following element components and their mass percentages: C ≤0.02%, Si≤0.5%, Mn≤7.5%, P≤0.04%, S≤0.02%, Cu≤0.75%, Ti≤1.4%, Ni 16%, Cr 15%, Mo 5%, N0.25% , the balance is Fe, and its preparation technology comprises the steps:

[0056] 1) Intermediate frequency furnace smelting:

[0057] Put iron rods and other precious metal elements into the intermediate frequency furnace for smelting, the temperature in the intermediate frequency furnace is controlled at 1550 °C, deoxidize and remove slag, and then take samples for testing;

[0058] According to the test results, add the missing precious metals to the intermediate frequency furnace, adjust the various elements in the molten steel, and after the various element indicators meet the requireme...

Embodiment 3

[0074] The invention provides a high-temperature-resistant and corrosion-resistant compressor exhaust valve plate, which is processed from heat-resistant austenitic stainless steel. The heat-resistant austenitic stainless steel includes the following element components and their mass percentages: C ≤0.02%, Si≤0.5%, Mn≤7.5%, P≤0.04%, S≤0.02%, Cu≤0.75%, Ti≤1.4%, Ni 14%, Cr 20%, Mo 3.5%, N0.1% , the balance is Fe, and its preparation technology comprises the steps:

[0075] 1) Intermediate frequency furnace smelting:

[0076] Put iron rods and other precious metal elements into the intermediate frequency furnace for smelting, the temperature in the intermediate frequency furnace is controlled at 1700 °C, deoxidize and remove slag, and then take samples for testing;

[0077] According to the test results, add the missing precious metals to the intermediate frequency furnace, adjust the various elements in the molten steel, and after the various element indicators meet the require...

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PUM

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Abstract

The invention provides a compressor exhaust valve plate resistant to high temperature and corrosion and a preparation process thereof. Heat-resistant austenitic stainless steel is taken as a base material, and the compressor exhaust valve plate is formed through processes of intermediate frequency furnace smelting, casting, forging, heat treatment, surface treatment and forming and the like. The heat-resistant austenitic stainless steel comprises, by mass percentage, <=0.02% of C, <=0.5% of Si, <=7.5% of Mn, <=0.04% of P, <=0.02% of S, <=0.75% of Cu, <=1.4% of Ti, 14%-16% of Ni, 15%-20% of Cr, 3.5%-5% of Mo, 0.10%-0.25% of N, and the balance Fe. The product is excellent in high temperature resistance, abrasion resistance, fatigue resistance and base body strength.

Description

technical field [0001] The invention relates to the technical field of mechanical parts manufacturing, in particular to a high-temperature-resistant and corrosion-resistant compressor exhaust valve plate and a preparation process thereof. Background technique [0002] The exhaust valve is an important part in the compressor, which plays a vital role in the stability of the compressor, the compression effect and the service life. Now the selection of materials for the exhaust valve and the exhaust valve plate on the air compressor is basically Stainless steel, aluminum-based alloy, polyurethane, tetrafluoroethylene, etc., these materials play different roles in different working conditions. However, for a compressor used in a high-temperature working condition (thermal power and other working conditions), its working temperature is basically between 320°C and 520°C. Vinyl valves are not suitable, and stainless steel valves will also wear or fatigue the valves as the frequency...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P15/00
CPCB23P15/001
Inventor 陈备陈才王加强周振康陈明喆
Owner 温州市建庆实业公司