Kuyini Ukufutha kwe-Thermal

I-Thermal spray iyiqembu lezinqubo zokumboza lapho izinto ezincibilikisiwe (noma ezishisiwe) zifafazwa endaweni elungiselelwe. Izinto zokugqoka noma  "i-feedstock" ishisisa ngogesi (i-plasma noma i-arc) noma izindlela zamakhemikhali (ilangabi elivuthayo). Izingubo zokufutha ezishisayo zingaba wugqinsi (ubukhulu busukela kuma-micrometer angu-20 kuya kumamilimitha amaningana).

Thermal Spray Coating materials for thermal spray zihlanganisa izinsimbi, alloys, ceramics, plastics, and composite. Aphakelwa ngendlela eyimpushana noma yocingo, ashiselwe esimweni esincibilikisiwe noma esincibilikisiwe kancane, futhi asheshiselwe kuma-substrates ngesimo sezinhlayiya ezinosayizi we-micrometer. Ukushiswa noma ukukhipha i-arc kagesi kuvame ukusetshenziswa njengomthombo wamandla wokufafaza okushisayo. Izingubo eziwumphumela zenziwa ngokuqoqwa kwezinhlayiya eziningi ezifuthwe. Ingaphezulu lingase lingashisi kakhulu, livumele ukumbozwa kwezinto ezivuthayo.

Izinga le-Thermal Spray Coating ngokuvamile lihlolwa ngokulinganisa ukujula kwayo, okuqukethwe kwe-oxide, ubulukhuni obukhulu kanye nokuqina okuncane, amandla ebhondi, kanye nokuqina kwendawo. Ngokuvamile, ikhwalithi yokumboza ikhuphuka ngokwanda kwe-particle velocities.

Izinhlobo ze-thermal spray:

1. I-Plasma spray (APS)

2. Ukuqhunyiswa kwesibhamu

3. Ukufafaza nge-arc yocingo

4. Isifutho somlilo

5. I-High-velocity oxygen fuel (HVOF)

6. I-High-velocity air fuel (HVAF)

7. Isifutho esibandayo

Izicelo Zokufutha Okushisayo

Izingubo zokufutha ezishisayo zisetshenziswa kakhulu ekwenzeni izinjini zegesi, izinjini zikadizili, ama-bearings, amajenali, amaphampu, ama-compressor, kanye nemishini yasensimini kawoyela, kanye nasekuhlanganiseni izimila zezokwelapha.

Ukufafaza okushisayo ngokuyinhloko kuyindlela ehlukile kuneyokuhlanganisa i-arc eshiselwe, nakuba iphinde isetshenziswe njengenye indlela yezinye izinqubo zokuvela phezulu, njengokufakwa kwe-electroplating, ukufakwa komhwamuko obonakalayo namakhemikhali, kanye nokufakwa kwe-ion kokusetshenziswa kobunjiniyela.

Izinzuzo Zokufutha Okushisayo

1. Ukukhetha okuphelele kwezinto zokugqoka: izinsimbi, ama-alloys, izitsha zobumba, ama-cermets, ama-carbides, ama-polymers, namapulasitiki;

2. Izingubo eziwugqinsi zingasetshenziswa ngamazinga aphezulu okubekwa;

3. Izingubo zokufutha ezishisayo ziboshwe ngomshini ku-substrate - ngokuvamile zingafafaza izinto zokumboza ezingahambisani ne-substrate;

4. Ingakwazi ukufafaza izinto zokumboza ngephuzu elincibilikayo eliphakeme kune-substrate;

5. Izingxenye eziningi zingafuthwa ngokushisa okuncane noma kungabi nhlobo noma ukwelashwa kwangemuva kokushisa, futhi ukuhlanekezela kwengxenye kuncane;

6. Izingxenye zingakhiwa kabusha ngokushesha nangezindleko eziphansi, futhi ngokuvamile ngenani elincane lentengo yokushintshwa;

7. Ngokusebenzisa impahla ye-premium yokugcoba isifutho esishisayo, isikhathi sokuphila sezingxenye ezintsha singanwetshwa;

8. Izingubo zokufutha ezishisayo zingasetshenziswa kokubili ngesandla nangomshini.