CN102995002B - Spray coating corrosion preventing method of gas channel of centrifugal air compressor - Google Patents
Spray coating corrosion preventing method of gas channel of centrifugal air compressor Download PDFInfo
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- CN102995002B CN102995002B CN201210502693.5A CN201210502693A CN102995002B CN 102995002 B CN102995002 B CN 102995002B CN 201210502693 A CN201210502693 A CN 201210502693A CN 102995002 B CN102995002 B CN 102995002B
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- air inlet
- anticorrosion
- rotor
- sealer
- air compressor
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Abstract
The invention provides a spray coating corrosion preventing method of a gas channel of a centrifugal air compressor. The gas channel of the centrifugal air compressor mainly consists of a gas inlet separating plate, an inlet gas guide separating plate, a sealer and a rotor in an enclosing way. The spray coating corrosion preventing method comprises the following steps: 1) performing spray coating corrosion prevention pretreatment, namely cleaning the surfaces of the gas inlet separating plate, the inlet gas guide separating plate, the sealer and the rotor and the surfaces, to be coated, of the parts, and preparing to coat the surface after drying; 2) spraying a metal powder anticorrosion coating, namely selecting conventional metal powder anticorrosion raw material, and spraying on the surfaces of the gas inlet separating plate, the inlet gas guide separating plate, the sealer and the rotor through a spray gun until forming a layer of coatings; 3) sintering, namely sintering the parts with coatings on the surfaces for 2 to 4 hours at 180 to 200 DEG C; and 4) cooling, and detecting to obtain the qualified products which are the finished products. By adopting the spray coating corrosion preventing method, the gas channel of the compressor comprising the parts subjected to anticorrosion coating treatment has less possibility of being rusted, and clean air can be provided.
Description
Technical field
What the present invention relates to is a kind of anticorrosion with painting method of centrifugal air compressor gas flow.
Background technology
The solidity to corrosion of centrifugal air compressor gas flow and the purity of gas are the key issues whether obtaining pure air in compressor.In the past, air was through the high speed rotating of rotor, and temperature raises, and liquid water is vaporized, and therefore component after the impeller can not adhere to liquid water.But in Ge Duan ingress because air themperature is lower, the liquid water in air just can be attached on the component of ingress, cause the component surfaces such as air inlet dividing plate, sealer, rotor to produce corrosion, the pressurized air obtained will not be pure.
Summary of the invention
The object of the invention is to overcome above-mentioned weak point, thus provide a kind of can ensure compressor under normal operating conditions gas flow can not there is the anticorrosion with painting method of the centrifugal air compressor gas flow of corrosion phenomena.
The object of the invention is to have come by following technical solution, described centrifugal air compressor gas flow encloses formation primarily of air inlet dividing plate, air inlet diaphragm, sealer, rotor, and described anticorrosion with painting method comprises the steps:
1) anticorrosion with painting pre-treatment: by air inlet dividing plate, air inlet diaphragm, sealer, these component of rotor, need to spray the surface at position and clean, wait dry after prepare to carry out sprayed surface;
2) metallize powder preservative coat: select the anticorrosion raw material of the metal-powder of existing routine, carries out spraying on the surface of described air inlet dividing plate, air inlet diaphragm, sealer, these component of rotor by spray gun and forms one deck coating;
3) sintering processes: by cated for described spraying under sintering temperature is 180 ~ 200 DEG C of conditions, sinters 2 ~ 4 hours;
4) after cooling detection is qualified, finished product is become.
The top coat thickness of air inlet dividing plate of the present invention, air inlet diaphragm, sealer, these component of rotor is 0.05 ~ 0.08mm, and is once be sprayed onto target thickness value with spray gun.
Uniform coating thickness of the present invention, surfaceness is Ra ~ 10 μm, and hardness is HV ~ 130, excellent adhesive power is had with parent, without phenomenons such as bubbling, peel off, can not there is corrosion phenomena in guarantee compressor under normal operating conditions gas flow, and can provide pure air.
, not easily there is corrosion, and pure air can be provided in the compressor gas runner that the component of the present invention according to the method described above after coated anti-corrosion layer process are formed.
Accompanying drawing explanation
Fig. 1 is the structural representation of compressor gas runner of the present invention;
Fig. 2 is rotor of the present invention spraying schematic diagram;
Fig. 3 is end sealer of the present invention spraying schematic diagram;
Embodiment
Below in conjunction with accompanying drawing, the present invention will be described in detail: the present invention is mainly for a kind of Technical Solving that the single shaft isothermal air compressor machine product of certain empty dispenser sleeve existing proposes, described in Fig. 1 is the structural representation forming compressor gas runner of the present invention, wherein mainly comprise the parts thereof of compressor inlet, enclosed formed by air inlet dividing plate, air inlet diaphragm, sealer 1, rotor 2, anticorrosion with painting method of the present invention comprises the steps:
1) anticorrosion with painting pre-treatment: by air inlet dividing plate, air inlet diaphragm, sealer, these component of rotor, need to spray the surface at position and clean, wait dry after prepare to carry out sprayed surface;
2) metallize powder preservative coat: select the anticorrosion raw material of the metal-powder of existing routine, carries out spraying on the surface of described air inlet dividing plate, air inlet diaphragm, sealer, these component of rotor by spray gun and forms one deck coating;
3) sintering processes: by cated for described spraying under sintering temperature is 180 ~ 200 DEG C of conditions, sinters 2 ~ 4 hours;
4) after cooling detection is qualified, finished product is become.
The top coat thickness of air inlet dividing plate of the present invention, air inlet diaphragm, sealer, these component of rotor is 0.05 ~ 0.08mm, and is once be sprayed onto target thickness value with spray gun.
Uniform coating thickness of the present invention, surfaceness is Ra ~ 10 μm, and hardness is HV ~ 130, excellent adhesive power is had with parent, without phenomenons such as bubbling, peel off, can not there is corrosion phenomena in guarantee compressor under normal operating conditions gas flow, and can provide pure air.
Embodiment:
Fig. 2 is rotor of the present invention spraying schematic diagram; Fig. 3 is end sealer of the present invention spraying schematic diagram.
Rotor and end sealer need spraying area to deoil to clean up before spraying corrosion resistant coating, with spray gun, metal powder particles is sprayed onto spraying area 3, requires coating thickness≤0.06mm after waiting drying, only need spray and once just can reach wanted thickness.After having sprayed, component are sent in the drying room of 200 DEG C and heat 2 hours, make metal-powder solidify to form uniform protective film.After component cooling with eye confirm protective film with or without foaming, scar, the abnormal conditions such as to peel off.Should be noted that and will protect without the need to spraying area exactly, prevent from getting rusty.
Rotor wheel runner spraying area shown in Fig. 2 is empirically generally 1/3 of impeller passage.
Claims (3)
1. the anticorrosion with painting method of a centrifugal air compressor gas flow, described centrifugal air compressor gas flow encloses formation primarily of air inlet dividing plate, air inlet diaphragm, sealer, rotor, it is characterized in that described anticorrosion with painting method comprises the steps:
1) anticorrosion with painting pre-treatment: by air inlet dividing plate, air inlet diaphragm, sealer, these component of rotor, need to spray the surface at position and clean, wait dry after prepare to carry out sprayed surface;
2) metallize powder preservative coat: select the anticorrosion raw material of the metal-powder of existing routine, carries out spraying on the surface of described air inlet dividing plate, air inlet diaphragm, sealer, these component of rotor by spray gun and forms one deck coating;
3) sintering processes: by cated for described spraying under sintering temperature is 180 ~ 200 DEG C of conditions, sinters 2 ~ 4 hours;
4) after cooling detection is qualified, finished product is become.
2. the anticorrosion with painting method of centrifugal air compressor gas flow according to claim 1, the top coat thickness that it is characterized in that described air inlet dividing plate, air inlet diaphragm, sealer, these component of rotor is 0.05 ~ 0.08mm, and is once be sprayed onto target thickness value with spray gun.
3. the anticorrosion with painting method of centrifugal air compressor gas flow according to claim 1 and 2, is characterized in that described uniform coating thickness, and surface roughness Ra is 10 μm, and hardness HV is 130.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210502693.5A CN102995002B (en) | 2012-11-30 | 2012-11-30 | Spray coating corrosion preventing method of gas channel of centrifugal air compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210502693.5A CN102995002B (en) | 2012-11-30 | 2012-11-30 | Spray coating corrosion preventing method of gas channel of centrifugal air compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102995002A CN102995002A (en) | 2013-03-27 |
| CN102995002B true CN102995002B (en) | 2015-02-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210502693.5A Active CN102995002B (en) | 2012-11-30 | 2012-11-30 | Spray coating corrosion preventing method of gas channel of centrifugal air compressor |
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| CN107042314B (en) * | 2017-03-16 | 2019-01-18 | 刘俊廷 | A kind of oil field drilling, well workover clamp compoboard and preparation method thereof with no impression |
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| JP5248373B2 (en) * | 2009-03-11 | 2013-07-31 | 株式会社日立産機システム | Water jet air compressor |
| US9023423B2 (en) * | 2009-10-07 | 2015-05-05 | General Electric Company | Method of deposition of metallic coatings using atomized spray |
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