Isisekelo sensimbi: ungakhetha kanjani? Sibutsetelo se-primer yensimbi: izici namanani

Ukuze kuvikelwe ngokuqinile insimbi emisebenzini emibi yokubhujiswa, kufanele kusetshenziswe isisekelo sokuqala. Lokhu kukwakhiwa kungaba nenhloso ehlukile.

Izinhlobo zokuqala

I-primer yensimbi ikhethwe kuye ngezimo zangaphandle ezizogcinwa ngenkathi kusebenza, futhi nangendlela yobuso. Ngakho-ke, i-primer ingahle yenzelwe uhlelo lokusebenza ezingxenyeni ezingensimbi noma ezivundiwe. Phakathi kwezinye izinto, lokhu kwakhiwa kungakhiwa ukuguqula ukugqwala. Kukhona i-phosphating, i-passive, i-isolation, i-inhibiting ne-protective mix.

Izingxube ze-phosphating zisekelo ezimbili ezakhiwa nge-orthophosphoric acid kanye ne-diluent. Sebenzisa le nhlanganisela kungenzeka kuzo zonke izinhlobo zensimbi. Ithuthukisa ikhwalithi ye-clutch.

I-primer yokuzivikela isalokhu i-alkyd noma i-epoxy. Yenzelwe ukuvikela ubuso emswakeni kanye ne-oxygen. Ekubunjweni kwayo - i-wax yensimbi, i- zinc emhlophe, kanye nama-fillers. Lokhu kubonakala kuvame ukusetshenziselwa izinsimbi ezifayo.

I-primer yokunciphisa insimbi

Kunganciphisa izici ze-electrochemical. Ikhuthaza ukuvimbela ukushisa. Uma sikhuluma ngenhlanganisela engavimbelayo, yakha uhlobo olusha lwezinto ezibonakalayo phezu kohlobo lwe-koqweqwe lwawo-inhlabathi, ehlanganisa izindawo zamakhemikhali amabili. I-inhibitors eyenza ukwakheka kwayo ingaba yinto enomsoco noma yamafutha.

Isivikelo sokuvikela

Yenzelwe ukusebenza ngezindawo ezilukhuni. Uma udinga i-primer yensimbi, khona-ke ungakhetha okukhulunywe ngenhla, iqukethe i-alloy magnesium nge-zinc, futhi ibuye iholele i-powder. Phezu kwesicelo ngemuva kwesicelo, ifilimu engabonakali idalwa, ekwazi ukuvikela isisekelo sensimbi ngisho nalapho kukhwabanisa kwenzeka. Lokhu kutholakala ngenxa yezinhlayiya ze-zinc, eziyingxenye ye-primer. Ngokuvamile kuyadingeka ukwelapha ubuso obusuvele buhambisana nezinqubo zokugqwala. Kunezindlela ezinjalo zokubonga, ziyasetshenziswa ngemuva kokuhlanza indawo. Emva kokuba i-base ivikelwe emanzini.

Izici zokuzikhethela nesicelo

Uma udinga i-primer yensimbi, okokuqala udinga ukuzijwayeza ngendlela okukhethwa kuyo. Kubalulekile ukucabangela hhayi kuphela izinhlobonhlobo zensimbi, kodwa futhi nemimoya kanye nemithwalo yemishini. Ngemuva kokuba inkosi kufanele ijwayele ubuchwepheshe bokusetshenziswa kwesakhiwo. Okokuqala, ubuso kufanele bukhululeke kusuka ekugqokeni okudala, kuhlanjululwe ukungcola nobumthunzi, futhi kwasulwa. Phakathi kwezinye izinto, kudingekile ukuba kunciphise, kanye nokuqeda ukugqwala.

Kumelwe kusetjenziswe amathuluzi afanele ngamapayipi ensimbi ngomshini, lokhu kungaba isibhebhe, ispirisi noma i-roller ye-pneumatic. Uma ukhetho lwesibili lisetshenzisiwe, umsebenzi ungagcwaliswa ngesikhathi esifushane, kodwa imishini enjalo ayisoloko isesigcinweni senkosi, futhi akusiluleka ukuyiqashisa ukumboza izindawo ezincane. Uma uthenga izinto zokwakha, kubalulekile ukucabangela ukusetshenziswa, ngokwesilinganiso lesi sibalo sichaza kusuka ku-120 kuya ku-140 amagremu kumitha ngayinye yekwele. Lokhu kuyiqiniso ngokusebenzisa izendlalelo ezimbili. Leli nani elinconywa ngumenzi.

Ngokuvame ukwanele, ukugqoka okungenamanzi kusetjenziswa, ikakhulukazi ekuthomeni kwesimbi, okuzokwehliselwa ku-frost neqhwa. Noma yisiphi isembatho sokugqoka esetshenziswayo, kubalulekile ukugcina izimo zomswakama nokushisa. Ngokuqondene nobubanzi bokugcina, buyahlukahluka -10 kuya ku -25 degrees.

Izici ze-alkyd zokuqala zensimbi

I-Alkyd primer yensimbi yensimbi ingasetshenziswa njengesembatho esizimele. Ukuningi kokubunjwa okunjalo ukuthi akudingekile ukusebenzisa upende noma koqweqwe lwawo phezulu. Phakathi kwezinzuzo ezengeziwe, kungenzeka ukuhlukanisa ukuhlinzekwa kwezici ezinhle kakhulu zokungalingani, kanye nokuthi kungenzeka ukufaka isicelo esibusweni esiye sabhekwa izinqubo zokugqwala. Ngakho, lokhu kubonisa ukuthi i-alkyd primer yenza njengenguquko. Le nhlanganisela iyakwazi ukuhlinzeka ngokuvikeleka okuthembekile ngokumelene nezimo ezihlukahlukene zezulu, mayelana nemisebe ye-ultraviolet, kanye nezinguquko zokushisa.

Lokhu kukwakhiwa kunamandla okucasha. Ngenxa yokuthi phakathi kwezithako zokuvikeleka kwe-alkyd kukhona ukugcwaliswa kwe-aluminium, indaba echazwe inikeza ukuphika okungaphezulu kokugqoka.

Uhlolojikelele lwezinhlamvu kanye namanani abo

Uma udinga ukuthenga i-primer, kufanele uqale wazi kangcono ngamanani, kodwa futhi nabakhiqizi. Isibonelo, i-primer ye-brand LAKRA izobiza ama-ruble angu-2000, le mali oyodingeka ukhokhele u-20 kg wenhlanganisela. Inezici ezinhle kakhulu zekhwalithi futhi ikwazi ukuvikela insimbi emathonyeni angaphandle. Ukuthenga isakhiwo esiphezulu ngevolumu efanayo, umthengi kufanele akhokhe izinhlamvu ezingu-1170. Ukumboza ubuso ngale nhlanganisela, uyayivikela futhi ukhulise impilo. Uma udinga ukumboza indawo yendawo encane, ungathenga ingxube yemakethe okukhulunywe ngayo kuqala ngesamba esingu-1 kg, kulokhu kufanele unike ama-ruble angu-120 esitolo sezinto zokwakha. Okuqukethwe kwegama likaDufa kubiza ama-ruble angu-1600 ama-2.5 amalitha. Ngokuqondene nomkhiqizi u-HAMMERITE, umele ukudayiswa i-primer yama-ruble ayi-1150. Ibhange lizoba ne-0.75 amalitha.

Isiphetho

Izingoma ezichazwe zihluke ngezinhloso kanye nemibandela yokusebenza. Isibonelo, i-primer yensimbi yemoto inezici ezihambelanayo. Kodwa-ke, kunezingxube zomhlaba wonke, zifanelekile ezindaweni ezijwayelekile kanye nezindawo zenkinga. Phakathi kwezinto zokuqala, ezenziwe ngamatshe, ezenziwe ngamatshe, neminye imikhiqizo, zingahlukaniswa, ezinobunzima obuncane, ezikhulayo izimfanelo zokunamathela, okuyinto enhle kakhulu ekusebenzeni umsebenzi wokuqhafaza. Phakathi kwezinsisekelo eziyinkimbinkimbi kukhona ithusi, i-aluminium, insimbi ehlanganisiwe, kanye nanoma yiziphi ezinye izinto ezikwazi ukuhlinzeka ngamakhemikhali ebusweni nokunciphisa ukunamathela.

Uma uthenga i-primer yensimbi GF 021, kuzomele ufunde izincomo zomkhiqizi. Ngakho-ke, ibhange lingacacisa isikhathi lapho ukubunjwa kukwazi ukubamba khona ensimbi. Izici ezivelele zokubunjwa nazo zibalulekile. Kuzo zonke izici ezibalulwe ngenhla, kubalulekile ukukhokha ngokukhethekile ukuthenga izinto. Kusukela kulokhu kuzokuxhomeka ekuqineni kokugqoka okuvikelwe kanye nokuphila kwensimbi ngokwayo. Akudingekile ukuthi ulondoloze ku-mix premimer, kungcono ukuthenga izimpahla zomenzi ozibonakalise emakethe yezinto ezifanelekayo.