Udongwe Metal: iintlobo kunye nemithetho zokusebenza

Enyanisweni nayiphi na ngcina ngenxa metal, nto leyo inokufunyanwa ezivenkileni, na amandla aphezulu. Amaxesha amaninzi adherend isakhiwo liwela ngaphakathi umaleko ngcina, kwaye lokujikeleza ekhohlo kwi imida sentsimbi. Ngenxa yoko, amandla iqhina ngcina ngokuyintloko kuxhomekeke kwamalungiselelo ephindwe.

Kudla coating iyasuleleka ngeoli ezahlukeneyo, isikali lokusila, iintsalela ipeyinti, imizila nokumelana. Vala konke oku kunokuba zombini iikhemikhali yaye zoomatshini.

Phambi ukusetyenziswa ngcina for metal ezingcolisekileyo umphezulu waphathwa nezisombululo ze asidi okanye alkalis, kunye nokwenziwa ezizodwa kokususa namhlwa kunye ukusulungekiswa. Isenzo asidi okanye alkalis isekelwe kwinto yokuba oxides utshabalale ngokukhawuleza ngaphezu izinto isiseko. Ukucoca kunye nezinto zokwenza ngokutsha imichiza ngokukhawuleza kwaye sitshiphu ngaphezu machining. Kwakhona kwakheka kwi phezu kwensimbi maleko enganyangekiyo, nto leyo eyandisa amandla ukuqina iqhina ngcina.

ukucocwa Mechanical kumphezulu kwakhona kwenziwa phambi kokuba nokusebenzisa le ngcina for metal. Kule meko unyango imveliso usebenzisa abrasives (iibhrashi ucingo, wadubula xa kuthe kwakho imbabala ukufakelwa, sandblasting okanye sandpaper). Umphezulu obubangela iba rougher, nto leyo eyandisa indawo intsebenziswano kunye nopume metal enamathelayo kwandisa amandla bond.

Namhlanje imakethi inika ezahlukeneyo yokuncamathelisa ngenxa metal, ezo mpawu zabo kunye nokwakheka.

Enye into eqhelekileyo i Polyvinyl acetate ngcina (PVA). Uvumela ukusebenza ngamaplanga, iglasi, intsimbi, isikhumba, amalaphu aqhelekileyo kunye nabanye. Le ntlama lisetyenziswe umaleko obhityileyo pre-degreased imiphezulu ukuba ngqongqo zixinaniswe. bamba iglu kwenzeka emva kwemizuzu engama-20, ngetshaneli esipheleleyo waphawula ngosuku kamva.

Bathi ke loo ngcina waziwa ngokuba intsimbi, irabha, njenge "Moment". Kwakhona nako ukudibanisa iinkuni, iiseramikhi, iplastiki, waziva, PVC nzima, njl Le nto yityhefu zivuthe. Ngayo inokusebenza kwiindawo kakuhle umoya okanye ezivulekileyo kuphela, kude emithonjeni ucinezelo. Iindlela isicelo thinly phezu uzilungiselele, avunyelwe ukuba eme ngeenyawo imizuzu elishumi elinesihlanu, yaye emva koko compress izinto ukusukelwa imizuzwana embalwa.

Phantse wonke umntu uyazi malunga iglu epoxy, nayo leyo ivumela uqhagamshelwano ngesinyithi, iglasi, umthi kunye nezinye izinto. Ukongeza, indlela esetyenziswayo ngenxa yokuvalwa neentanda kunye nemingxuma, singasebenza njenge ukutyabeka lacquer.

Le metal enamathelayo enokumelana oyile namanzi, kwaye lisebenza yokwambathisa elungileyo. Le into yityhefu. Emva zidibene nesikhumba, kuyimfuneko ukuba pula ngokukhawuleza ngamanzi ashushu nesepha. Iindlela ayikwazi ingasetyenziswa lib lweemveliso zokutya. Self ngcina walungisa usebenzisa intlaka enikeziwe hardener kwindawo umlinganiselo we-10 ukuya 1. Emva ukukhwezela imizuzu eli-10, i-isisombululo kufuneka kusetyenziswe phezu umaleko obhityileyo, uze ukudibanisa kuwo. Partial isisombululo polymerization kwenzeka ngokusebenzisa iyure 4 Ukuqinisa epheleleyo lwenzeka kwiintsuku.