Sandblasting aiki ne da ke amfani da matsewar iska azaman iko don tura abrasives zuwa saman kayan aikin don sarrafawa. Wannan shine abin da ake kira sandblasting, wanda shine abin da muke kira da fashewar harbi. Domin a farkon lokacin harbe-harbe, yashi ne kawai abin da za a iya amfani da shi, don haka fashewar fashewar ana kiransa fashewar yashi a wancan lokacin kuma na dogon lokaci bayan haka. Sandblasting zai iya sa saman da za a tsaftace ya sami tsaftar da ake buƙata da wasu ƙaƙƙarfan ƙazanta, da kuma inganta mannewar rufi a saman tushe. Komai kyaun rufin yana da kyau, ba za a iya haɗa shi zuwa saman kayan aikin ba tare da magani na dogon lokaci ba. Manufar pretreatment na saman shine don tsaftace farfajiyar da kuma samar da ƙarancin da ake buƙata don "kulle" shafi a saman. Bayan saman aikin aikin yashi mai yashi tare da kayan aikin masana'antu mai kyau, rayuwar sabis na rufin shine sau 3.5 ya fi tsayi fiye da rayuwar sabis na nau'in inganci iri ɗaya akan farfajiyar da wasu hanyoyin ke bi. Wani fa'idar yashi mai fashewa (harbin fashewa) shine cewa za'a iya ƙaddara ƙayyadaddun yanayin ƙasa bisa ga buƙatu kuma ana iya samun su yayin aikin tsaftacewa.
Frosting, misali, tsari ne wanda akwalban gilashin kwaskwarimaya zama santsi kuma ya zama matte. Hasken yana haskaka saman don samar da haske mai yaduwa. A cikin sanyin sinadarai, gilashin ana yin ƙasa da injina ko ƙasa da hannu tare da emery, yashi silica, foda na rumman da sauran abrasives don samar da ƙasa mara kyau, ko gilashin da sauran abubuwa ana iya bi da su tare da maganin hydrofluoric acid don samar da gilashin sanyi.
Ana amfani da dusar ƙanƙara da yashi don rufe saman gilashin, ta yadda hasken zai bazu ko'ina bayan wucewa ta cikin fitilar. Yana da wahala ga talakawa masu amfani su bambanta tsakanin waɗannan fasahohin biyu. Mai zuwa yana bayyana hanyoyin kera waɗannan fasahohin biyu da yadda ake gane su.
1. Tsarin sanyi
Frosting yana nufin nutsar da gilashin a cikin ruwan acid da aka shirya (ko amfani da manna acid), lalata saman gilashin tare da acid mai ƙarfi, da hydrogen fluoride ammonia a cikin maganin acid mai ƙarfi yana haifar da gilashin gilashin don samar da lu'ulu'u. Sabili da haka, idan tsarin sanyi ya yi kyau, saman gilashin sanyi yana da santsi sosai, kuma lu'ulu'u masu tarwatsa suna haifar da sakamako mai haɗari. Idan saman yana da ɗan ƙanƙara, wannan yana nuna cewa acid ɗin yana lalata gilashin sosai, ko kuma wasu daga cikinsu har yanzu ba su da lu'ulu'u. Halin wannan tsari shine bayyanar lu'ulu'u masu haske a kan gilashin gilashin da aka kafa a karkashin yanayi mai mahimmanci. Babban dalili shi ne cewa hydrogen fluoride ammonia ya kusan cinyewa. Don cimma wannan jiha, masana'antun da yawa sun yi ƙoƙari da karatu da yawa, amma ba su iya shawo kan wannan wahala ba.
2. Fasahar fashewar yashi
Yana amfani da ɓangarorin yashi da bindigar fesa ke fitarwa da sauri don buga saman gilashin don samar da kyakkyawan saman da bai dace ba, ta yadda zai sami tasirin watsa haske, da kuma haifar da hatsaniya lokacin da haske ke wucewa. Fuskar samfuran gilashin da aka samar ta hanyar fashewar yashi yana da wahala. Domin saman gilashin ya lalace, yana kama da farin gilashin dangane da ɗaukar hoto na ainihin gilashin bayyananne.
Hanyoyin biyu sun bambanta gaba daya. Gilashin da aka daskare ya fi tsada fiye da gilashin yashi, kuma tasirin ya dogara ne akan bukatun masu amfani. Wasu tabarau na musamman ba su dace da sanyi ba. Yin la'akari daga biyan kuɗi mai daraja, ya kamata a zabi matte. Ana iya yin aikin fashewar yashi a cikin masana'antu gabaɗaya, amma tsarin fashewar yashi ba shi da sauƙi don yin kyau.
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Lokacin aikawa: Agusta-25-2021