Gabatarwa naYashi

Kalmar sandblasting tana bayyana abubuwan fashewar abubuwa a saman sama ta amfani da matsewar iska. Ko da yake ana yawan amfani da fashewar yashi azaman kalmar laima don duk hanyoyin fashewar abrasive, ya bambanta da fashewar fashewar abubuwa inda ake motsa kafofin watsa labaru ta hanyar juyi.

Ana amfani da fashewar yashi don cire fenti, tsatsa, tarkace, tarkace da alamomin simintin gyare-gyare daga saman amma kuma yana iya cimma akasin sakamako ta hanyar ƙyanƙyashe filaye don ƙara rubutu ko ƙira.

Ba kasafai ake amfani da yashi a cikin yashi ba a yau saboda kasadar lafiya da matsalolin da ke da alaka da danshi. Zaɓuɓɓuka kamar grit na karfe, beads na gilashi da aluminum oxide yanzu an fi son su a tsakanin sauran nau'ikan kafofin watsa labaru masu yawa.

Sandblasting yana amfani da matsewar iska don tada kayan goge-goge, sabanin harbin fashewar bama-bamai, wanda ke amfani da tsarin fashewar dabaran da karfi na tsakiya don motsawa.

Menene Sandblasting?

Sandblasting, sau da yawa kuma ake kira abrasive blasting, hanya ce da ake amfani da ita don cire gurɓatar ƙasa, santsi m saman, da kuma roughen m saman. Wannan wata dabara ce mai rahusa ta godiya ga kayan aikin sa marasa tsada, kuma yana da sauƙi yayin ba da sakamako mai inganci.

Ana ɗaukar sandblasting dabarar fashewar iska mai sauƙi idan aka kwatanta da harbin iska mai ƙarfi. Duk da haka, ƙarfin zai iya bambanta dangane da nau'in kayan aikin yashi, da matsa lamba na iska, da kuma nau'in kafofin watsa labaru da aka yi amfani da su.

Sandblasting yana ba da ɗimbin zaɓi na kayan abrasive waɗanda ke da tasiri a aikace-aikace daban-daban, kamar cire fenti da gurɓataccen ƙasa wanda ya fi sauƙi a cikin ƙarfi. Hakanan tsarin yana da kyau don tsaftace kayan aikin lantarki masu mahimmanci da lalata masu haɗawa da daɗi. Sauran aikace-aikacen fashewar yashi waɗanda ke buƙatar mafi girman ƙarfin fashewar ƙararrawa na iya amfani da saitin matsi mai ƙarfi da kuma ƙarin kafofin watsa labarai masu ɓarna.

Ta Yaya Tsarin Sandblasting Yayi Aiki?

Tsarin fashewar yashi yana aiki ta hanyar tura kafofin watsa labarai mai fashewa zuwa saman ta hanyar amfani da yashi. Sandblaster yana da manyan abubuwa guda biyu: tukunyar fashewa da abin sha. Tushen fashewar yana riƙe da kafofin watsa labarai masu fashewa kuma yana jujjuya barbashi ta hanyar bawul. Ana yin amfani da iskar iska ta hanyar kwampreso na iska wanda ke matsa lamba ga kafofin watsa labarai a cikin ɗakin. Yana fita daga bututun ƙarfe a babban gudu, yana tasiri saman da ƙarfi.

Yashin yashi na iya cire tarkace, tsaftataccen filaye, cire fenti, da inganta yanayin gamawar kayan. Sakamakonsa ya dogara sosai akan nau'in abrasive da kaddarorin sa.

Kayan aikin yashi na zamani yana da tsarin farfadowa wanda ke tattara kafofin watsa labarai da aka yi amfani da su kuma ya sake cika tukunyar fashewar.

Kayan aikin Yashi

Kwamfuta - Kwamfuta (90-100 PSI) yana samar da iskar iska mai matsa lamba wanda ke motsa kafofin watsa labarai masu lalata zuwa saman kayan. Matsi, ƙara, da ƙarfin dawakai galibi sune mahimman abubuwan da za a yi la'akari da su lokacin zabar kwampreshin fashewar yashi mai dacewa.

Sandblaster – Sandblasters (18-35 CFM – cubic feet a minti daya) suna isar da kafofin watsa labarai masu ɓarna akan kayan ta amfani da iska mai matsewa. Sandblasters masana'antu suna buƙatar mafi girman ƙimar kwararar girma (50-100 CFM) saboda suna da yanki mafi girma na aikace-aikace. Akwai nau'ikan sandblasters iri uku: ciyar da nauyi, masu fashewar matsa lamba (matsi mai kyau), da siphon sandblasters (matsi mara kyau).

Blast Cabinet - Majalisar ƙararrawa tashar fashewa ce mai ɗaukuwa wacce ƙaramin tsari ne da aka rufe. Yawanci yana da abubuwa guda huɗu: majalisar ministoci, tsarin fashewar fashewar abubuwa, sake yin amfani da su, da tarin ƙura. Ana gudanar da kabad ɗin fashewa ta hanyar amfani da ramukan safar hannu don hannayen mai aiki da fedar ƙafa don sarrafa fashewar.

Fashewadakin - Dakin fashewa wani kayan aiki ne wanda zai iya ɗaukar kayan aiki iri-iri waɗanda galibi ana amfani da su don kasuwanci. Sassan jirgin sama, kayan aikin gini, da sassan mota ana iya fashewa da yashi cikin kwanciyar hankali a cikin daki mai fashewa.

Tsarin dawo da fashewar fashewar - Kayan aikin fashewar yashi na zamani yana da tsarin dawo da fashewa wanda ke dawo da kafofin watsa labarai masu fashewa. Hakanan yana kawar da ƙazanta waɗanda zasu iya haifar da gurɓatawar kafofin watsa labarai.

Cryogenic deflashing tsarin - Low yanayin zafi daga cryogenic deflashing tsarin ba da damar don aminci deflashing na kayan, kamar diecast, magnesium, filastik, roba, da zinc.

Kayayyakin fashewar rigar - Rigar iska tana haɗa ruwa a cikin kafofin watsa labarai masu fashewa don rage zafi daga gogayya. Hakanan hanya ce mafi sauƙi idan aka kwatanta da busassun busassun iska tun lokacin da kawai yake goge yankin da aka yi niyya a cikin kayan aikin.

Kafofin watsa labarai masu fashewa

Kamar yadda sunan ya nuna, farkon nau'ikan fashewar yashi da farko ana amfani da yashi ne saboda samuwarsa, amma yana da nasa kura-kurai a cikin nau'in abun ciki na danshi da gurbacewa. Babban damuwa tare da yashi a matsayin abin ƙyama shine haɗarin lafiyarsa. Shakar ƙurar ƙurar siliki daga yashi na iya haifar da munanan cututtuka na numfashi, gami da silicosis da kansar huhu. Don haka, a zamanin yau ba kasafai ake amfani da yashi ba kuma an maye gurbinsa da yawa na kayan gogewa na zamani.

Kafofin watsa labarai masu fashewa sun bambanta dangane da ƙarewar saman da ake so ko aikace-aikace. Wasu kafofin watsa labaru gama-gari sun haɗa da:

Aluminum oxide grit (8-9 MH - Mohs hardness sikelin) - Wannan abu mai fashewa yana da kaifi sosai wanda yake cikakke don shirye-shirye da jiyya na sama. Yana da tsada kamar yadda za'a iya sake amfani dashi sau da yawa.

Aluminum silicate (kwal slag) (6-7 MH) - Wannan samfurin na masana'antar wutar lantarki mai arha ne kuma mai watsawa. Masana'antar mai da na jiragen ruwa suna amfani da shi wajen ayyukan fashewa, amma yana da guba idan an fallasa shi ga muhalli.

Gilashin Gilashin da aka murƙushe (5-6 MH) - Gilashin grit yana amfani da beads ɗin gilashin da aka sake yin fa'ida waɗanda ba su da guba kuma ba su da lafiya. Ana amfani da wannan kafofin watsa labarai mai fashewa da yashi don cire sutura da gurɓatawa daga saman. Gilashin da aka murƙushe kuma za a iya amfani da shi yadda ya kamata da ruwa.

Soda (2.5 MH) - Bicarbonate soda fashewa yana da tasiri a hankali cire tsatsa na ƙarfe da tsaftacewa ba tare da lalata karfen da ke ƙasa ba. Sodium bicarbonate (baking soda) ana motsa shi a ƙananan matsa lamba na 20 psi idan aka kwatanta da sandblasting na yau da kullum a 70 zuwa 120 psi.

Karfe grit & karfe harbi (40-65 HRC) - Karfe abrasives Ana amfani da surface shirye-shirye matakai, kamar tsaftacewa da etching, saboda su m tube iya aiki.

Staurolite (7 MH) - Wannan watsawa mai fashewa shine silicate na ƙarfe da yashi na siliki wanda ya dace don cire saman bakin ciki tare da tsatsa ko sutura. Gabaɗaya ana amfani da shi don kera ƙarfe, ginin hasumiya, da tasoshin ajiya na bakin ciki.

Baya ga kafofin watsa labarai da aka ambata, akwai ƙarin samuwa. Yana yiwuwa a yi amfani da silicon carbide, wanda shine mafi wuyar kafofin watsa labaru da ake samu, da kuma harbe-harbe, irin su bawo na goro da masara. A wasu ƙasashe, har yanzu ana amfani da yashi har zuwa yau, amma wannan al'ada tana da shakku saboda haɗarin kiwon lafiya bai dace ba.

Shot Media Properties

Kowane nau'in kafofin watsa labaru na harbi yana da waɗannan manyan kaddarorin guda 4 waɗanda masu aiki zasu iya la'akari da su yayin zaɓar abin da za a yi amfani da su:

Siffar - Mai watsa labarai na kusurwa yana da kaifi, gefuna marasa daidaituwa, yana sa ya zama mai tasiri wajen cire fenti, alal misali. Kafofin watsa labarai na zagaye suna da laushi mai laushi fiye da kafofin watsa labarai na kusurwa kuma suna barin kyan gani mai gogewa.

Girman - Girman raga na gama gari don fashewar yashi sune 20/40, 40/70, da 60/100. Ana amfani da manyan bayanan raga don aikace-aikace mai ƙarfi yayin da ƙananan bayanan bayanan raga don tsaftacewa ko goge don samar da samfurin da aka gama.

Yawai – Mai jarida mai girma mai yawa zai sami ƙarin ƙarfi akan saman ƙarfe yayin da ake motsa shi da bututun fashewa a ƙayyadaddun gudu.

Hardness - Abrasi mai wuyaves suna haifar da tasiri mai girma a kan bayanin martaba idan aka kwatanta da abrasives masu laushi. Sau da yawa ana auna taurin kafofin watsa labarai don abubuwan fashewar yashi ta wurin ma'aunin taurin Mohs (1-10). Mohs yana auna taurin ma'adanai da kayan haɗin gwiwar, yana nuna juriya na ma'adanai daban-daban ta hanyar iyawar kayan aiki masu wuya don tayar da kayan laushi.