Ukuqhathaniswa kwenqubo ye-frosting yebhodlela lengilazi kanye nenqubo ye-sandblasting

I-Sandblasting ingumsebenzi osebenzisa umoya ocindezelwe njengamandla okusunduza ama-abrasive ebusweni bomsebenzi ukuze acutshungulwe. Lokhu kubizwa ngokuthi i-sandblasting, okuyilokho esivame ukukubiza ngokuthi i-shot blasting. Ngoba ekuqaleni kokuqhunyiswa kwesibhamu, isihlabathi sasiwukuphela kwesiqhumane esasingasetshenziswa, ngakho ukuqhunyiswa kwesibhamu kwakubizwa ngokuthi ukuqhunyiswa kwesihlabathi ngaleso sikhathi futhi isikhathi eside ngemva kwalokho. I-sandblasting ingenza ingaphezulu elizohlanzwa lithole ukuhlanzeka okudingekayo kanye nokubangwa okuthile, futhi kuthuthukise ukunamathela kokunamathela endaweni eyisisekelo. Kungakhathaliseki ukuthi ukugqoka kuhle kangakanani, akukwazi ukuxhunyaniswa ebusweni bomsebenzi ngaphandle kokwelashwa okuhlala isikhathi eside. Inhloso ye-surface pretreatment ukuhlanza indawo engaphezulu futhi kukhiqizwe ukuhwalala okudingekayo "ukukhiya" okunamathelayo ngaphezulu. Ngemuva kokuthi ingaphezulu le-sandblasted workpiece lihlanganiswe ne-coating yezimboni ezisebenza kahle, impilo yesevisi ye-coating iphindwe izikhathi ezingu-3.5 kunenkonzo yesevisi yekhwalithi efanayo ebusweni ephathwa ngezinye izindlela. Enye inzuzo ye-sandblasting (i-shot blasting) ukuthi ukugoqa kwamanzi kunganqunywa kusengaphambili ngokwezidingo futhi kungafinyelelwa ngesikhathi sokuhlanza.

Ukwenza isithwathwa, isibonelo, inqubo lapho aibhodlela lengilazi yezimonyoiba bushelelezi futhi iba matte. Ukukhanya kukhanyisela indawo engaphezulu ukuze kwakheke ukubonakaliswa okusabalalisayo. Kumakhaza amakhemikhali, ingilazi igaywa ngomshini noma igaywe ngesandla nge-emery, isihlabathi se-silica, impushana yehalananda nezinye izinto zokulunywa ukuze kwakhiwe indawo emagebhugebhu efanayo, noma ingilazi nezinye izinto zingaphathwa ngesisombululo se-hydrofluoric acid ukwenza ingilazi eyisithwathwa.

Kokubili i-frosting ne-sandblasting isetshenziselwa ukumboza indawo yengilazi, ukuze ukukhanya kuzohlakazeka ngokulinganayo ngemva kokudlula emthunzini wesibani. Kunzima kubasebenzisi abajwayelekile ukuhlukanisa phakathi kwalezi zindlela ezimbili zobuchwepheshe. Okulandelayo kuchaza izindlela zokukhiqiza zalezi zindlela ezimbili zobuchwepheshe kanye nendlela yokuzibona.

1. Inqubo yesithwathwa

I-Frosting isho ukucwilisa ingilazi oketshezini olune-asidi olulungisiwe (noma ukufaka i-asidi enamathiselwe), ukugqwala indawo yengilazi nge-asidi eqinile, kanye ne-hydrogen fluoride ammonia exazululweni le-asidi eqinile ibangela ukuthi indawo yengilazi yakhe amakristalu. Ngakho-ke, uma inqubo ye-frosting yenziwa kahle, ubuso bengilazi efriziwe bushelelezi kakhulu, futhi amakristalu ahlakazekile akhiqiza umphumela olimazayo. Uma indawo engaphezulu ilukhuni, lokhu kubonisa ukuthi i-asidi iguguleka kakhulu ingilazi, noma amanye awo asenawo amakristalu. Isici sale nqubo ukubonakala kwamakristalu acwebezelayo endaweni engilazi eyenziwe ngaphansi kwezimo ezibucayi. Isizathu esiyinhloko ukuthi i-hydrogen fluoride ammonia cishe isidliwe. Ukuze kuzuzwe lesi simo, abakhiqizi abaningi baye benza imizamo eminingi kanye nezifundo, kodwa abazange bakwazi ukunqoba lobu bunzima.

2. Ubuchwepheshe be-Sandblasting

Isebenzisa izinhlayiya zesihlabathi ezikhishwa isibhamu sokufutha ngesivinini esikhulu ukuze ishaye indawo yengilazi ukuze yakhe indawo ekahle engalingani, ngaleyo ndlela izuze umphumela wokukhanya okuhlakazayo, futhi yakhe umuzwa obumnyama lapho ukukhanya kudlula. Ubuso bemikhiqizo yengilazi ekhiqizwa inqubo ye-sandblasting bunzima. Ngenxa yokuthi indawo engaphezulu yengilazi yonakele, ibukeka njengengilazi emhlophe ngokwesithombe se-photosensitivity yengilazi esobala yasekuqaleni.

Lezi zinqubo ezimbili zihluke ngokuphelele. Ingilazi eyisithwathwa ibiza kakhulu kunengilazi efakwe esihlabathini, futhi umphumela uncike kakhulu ezidingweni zabasebenzisi. Ezinye izibuko eziyingqayizivele azifaneleki ukuqhwa. Ngokusekelwe ekufuneni okuhle, i-matte kufanele ikhethwe. Inqubo ye-sandblasting ingenziwa ezimbonini ezijwayelekile, kodwa inqubo ye-sandblasting akulula ukwenza kahle.

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