Kuyerekeza njira yachisanu ya botolo la galasi ndi njira ya sandblasting

Sandblasting ndi ntchito yomwe imagwiritsa ntchito mpweya woponderezedwa ngati mphamvu yokankhira ma abrasives pamwamba pa workpiece kuti akonze. Izi ndizomwe zimatchedwa sandblasting, zomwe nthawi zambiri timazitcha kuti kuwombera. Chifukwa chakuti m’masiku oyambilira a kuphulika kwa mfuti, mchenga ndi umene unkagwiritsidwa ntchito kokha, motero kuphulika kwa mfuti kunali kutchedwa kuphulika kwa mchenga panthaŵiyo ndipo kwanthaŵi yaitali pambuyo pake. Kuphulika kwa mchenga kungapangitse kuti pamwamba patsukidwe kupeza ukhondo wofunikira ndi kuuma kwina, ndikuwongolera kumamatira kwa zokutira pamtunda. Ziribe kanthu momwe zokutira zilili zabwino, sizingagwirizane ndi pamwamba pa workpiece popanda chithandizo cha nthawi yaitali. Cholinga cha pretreatment pamwamba ndi kuyeretsa pamwamba ndi kutulutsa roughness chofunika "kutseka" zokutira pamwamba. Pambuyo pamwamba pa workpiece sandblasted yokutidwa ndi ❖ kuyanika bwino ntchito mafakitale, moyo utumiki ❖ kuyanika ndi nthawi 3.5 nthawi yaitali kuposa moyo utumiki wa ❖ kuyanika khalidwe lomwelo pamwamba kuchitidwa ndi njira zina. Ubwino wina wa sandblasting (kuwombera kuwombera) ndikuti kuuma kwapamwamba kumatha kudziwikiratu molingana ndi zofunikira ndipo kutha kupezedwa panthawi yoyeretsa.

Kuzizira ndi, mwachitsanzo, njira yomwe azodzikongoletsera galasi botoloimakhala yosalala ndikukhala matte. Kuwala kumawalitsa pamwamba kuti apange kuwala kosiyana. Mu mankhwala chisanu, galasi ndi umakaniko pansi kapena pamanja pansi ndi emery, silika mchenga, makangaza ufa ndi abrasives ena kuti apange yunifolomu akhakula pamwamba, kapena galasi ndi zinthu zina akhoza kupakidwa ndi hydrofluoric acid njira kupanga galasi frosted.

Onse chisanu ndi sandblasting amagwiritsidwa ntchito kuphimba galasi pamwamba, kotero kuti kuwala kumafalikira mofanana ndi kudutsa mu lampshade. Ndizovuta kwa ogwiritsa ntchito wamba kusiyanitsa pakati pa matekinoloje awiriwa. Zotsatirazi zikufotokoza njira zopangira matekinoloje awiriwa komanso momwe angadziwire.

1. Njira yachisanu

Frosting amatanthauza kumiza galasi mu madzi okonzeka asidi (kapena kupaka asidi phala), corroding galasi pamwamba ndi asidi wamphamvu, ndi wa hydrogen fluoride ammonia mu amphamvu asidi njira kumapangitsa galasi pamwamba kupanga makhiristo. Choncho, ngati chisanu chikuchitika bwino, pamwamba pa galasi lachisanu ndi losalala kwambiri, ndipo makhiristo obalalika amatulutsa chisokonezo. Ngati pamwamba ndi movuta, izi zimasonyeza kuti asidi akuwononga kwambiri galasi, kapena ena a iwo alibe makhiristo. Makhalidwe a ndondomekoyi ndi maonekedwe a makhiristo owala pa galasi pamwamba omwe amapangidwa pansi pa zovuta. Chifukwa chachikulu ndikuti hydrogen fluoride ammonia yatsala pang'ono kudyedwa. Kuti akwaniritse dziko lino, opanga ambiri ayesa zambiri ndi maphunziro, koma sanathe kuthana ndi vutoli.

2. Sandblasting luso

Amagwiritsa ntchito particles za mchenga zomwe zimatulutsidwa ndi mfuti yopopera pa liwiro lalikulu kuti igunde pamwamba pa galasi kuti ipange malo abwino osagwirizana, potero amakwaniritsa zotsatira za kuwala kobalalitsa, ndi kupanga kumverera kwamdima pamene kuwala kumadutsa. Pamwamba pa magalasi opangidwa ndi sandblasting ndondomeko ndi ovuta. Chifukwa pamwamba pa galasi lawonongeka, limawoneka ngati galasi loyera potengera chithunzithunzi cha galasi loyambirira lowonekera.

Njira ziwirizi ndizosiyana kotheratu. Galasi yozizira ndiyokwera mtengo kuposa galasi lopangidwa ndi mchenga, ndipo zotsatira zake zimatengera zosowa za ogwiritsa ntchito. Magalasi ena apadera sali oyenera kuzizira. Kutengera kufunafuna kwabwino, matte ayenera kusankhidwa. Njira yopangira mchenga imatha kuchitika m'mafakitole ambiri, koma kukonza mchenga sikophweka kuchita bwino.

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