Dab tsi yog Thermal Spraying

Thermal spray yog ib pawg txheej txheem txheej txheej uas cov ntaub ntawv melted (los yog rhuab) yog txau rau ntawm qhov chaw npaj. Cov khoom siv txheej los yog "feedstock" yog rhuab los ntawm hluav taws xob (plasma los yog arc) los yog tshuaj txhais tau tias (combustion nplaim). Thermal spray coatings tuaj yeem yog tuab (thickness li ntawm 20 micrometers mus rau ob peb hli).

Thermal Spray Txheej cov ntaub ntawv rau cov tshuaj tsuag muaj xws li hlau, alloys, ceramics, plastics, thiab composites. Lawv tau noj nyob rau hauv hmoov los yog hlau daim ntawv, rhuab mus rau ib tug molten los yog semi-molten lub xeev, thiab ceev ceev ntawm substrates nyob rau hauv daim ntawv ntawm micrometer-loj hais. Combustion los yog hluav taws xob arc tawm feem ntau yog siv los ua lub zog rau thermal txau. Lub resulting coatings yog tsim los ntawm tsub zuj zuj ntawm heev heev sprayed hais. Qhov saum npoo yuav tsis kub heev, tso cai rau txheej txheej ntawm cov nplaim taws.

Thermal Spray Txheej zoo feem ntau yog ntsuas los ntawm kev ntsuas nws qhov porosity, oxide cov ntsiab lus, macro thiab micro-hardness, daim ntawv cog lus lub zog, thiab qhov roughness. Feem ntau, txheej txheej zoo nce nrog nce particle velocities.

Hom ntawm thermal spray:

1. Plasma tsuag (APS)

2. Detonation Phom

3. Hlau arc txau

4. Nplaim tshuaj tsuag

5. High-velocity oxygen roj (HVOF)

6. High-velocity air fuel (HVAF)

7. Txias tshuaj tsuag

Daim ntawv thov ntawm Thermal Spraying

Thermal spray coatings yog dav siv nyob rau hauv manufacturing gas turbines, diesel xyaw, bearings, journals, twj tso kua mis, compressors, thiab roj teb cov khoom, raws li zoo raws li nyob rau hauv txheej kho mob cog.

Thermal spraying yog ib qho kev xaiv rau arc welded coatings, txawm hais tias nws kuj yog siv los ua lwm yam txheej txheem saum npoo, xws li electroplating, lub cev thiab tshuaj vapor deposition, thiab ion implantation rau engineering daim ntaub ntawv.

Cov txiaj ntsig ntawm Thermal Spraying

1. Kev xaiv zoo ntawm cov ntaub ntawv txheej: hlau, alloys, ceramics, cermets, carbides, polymers, thiab plastics;

2. Cov coatings tuab tuaj yeem siv rau ntawm qhov tso nyiaj siab;

3. Thermal spray coatings yog mechanically bonded to the substrate - feem ntau tuaj yeem txau cov ntaub ntawv uas yog metallurgically incompatible nrog lub substrate;

4. Muaj peev xwm txau cov ntaub ntawv txheej nrog lub melting point ntau dua li substrate;

5. Feem ntau cov khoom tuaj yeem txau nrog me me lossis tsis muaj preheat lossis tom qab kev kho cua sov, thiab cov khoom sib txawv yog tsawg;

6. Cov khoom tuaj yeem rov ua dua sai sai thiab tus nqi qis, thiab feem ntau ntawm ib feem ntawm tus nqi hloov pauv;

7. Los ntawm kev siv cov khoom zoo rau cov txheej txheem thermal, lub neej ntawm cov khoom tshiab tuaj yeem txuas ntxiv mus;

8. Thermal spray coatings yuav siv tau ob qho tib si manually thiab mechanized.