I-ASTM A179ipayipi lensimbi elingenamthungo elidonswayo elibandayoisetshenziswa ikakhulukazi emikhakheni ehlukahlukene yezakhiwo zesakhiwo sensimbi, ikakhulukazi ngemuva kokugqwala kwezingcezu zensimbi ezicwiliswe ku-440 ~ 460.℃ukuncibilika isixazululo zinc, ukuze surface steel exhunywe ungqimba zinc, okuyinto ukudlala inhloso yokulondoloza.Lena indlela ephumelelayo yokugqwala kwensimbi, ukusetshenziswa kwezici eziyinhloko yilezi ezilandelayo:

(1) Abakhiqizi bamapayipi angenamthungo be-ASTM A179 abakhaza abakhaza abanongqimba oluminyene lwezinc olumbozwe endaweni ebandayo yeshubhu engenamthungo edonswayo, ingagwema i-matrix yeshubhu elidonsayo elidonswa ngokubanda kanye nanoma yikuphi ukuthintana nesixazululo sokugqwala ukuze kuvikelwe i-matrix yensimbi ekugqwaleni.Emkhathini jikelele, i-surface ye-zinc layer yenza ungqimba oluncane futhi oluminyene lwe-zinc oxide surface, kunzima ukuhlakazeka emanzini, ngakho-ke i-matrix yensimbi idlala indima yokuvikela.Uma i-zinc oxide nezinye izingxenye zomkhathi zikhiqiza usawoti we-zinc ongancibiliki, umphumela wokulwa nokugqwala ufiseleka kakhulu.

(2) Ngensimbi - i-zinc alloy layer, ehlanganiswe nokuminyene, kanye ne-anti-corrosion eyingqayizivele emkhathini wasolwandle kanye nomkhathi womoya.

(3) Ipayipi elibandayo le-ASTM A179 elidonswayo elingenamthungo elinamandla okumelana nokugqokwa ngenxa yenhlanganisela yensimbi eqinile, i-zinc - ingxubevange.

(4) Njengoba i-zinc ine-ductility enhle, ungqimba wayo we-alloy kanye nesisekelo sensimbi esinamathele esiqinile, ngakho izingxenye ezishisayo ezishisayo zingabanda, ukugoqa, ukudweba, ukugoba nokunye ukubunjwa ngaphandle kokulimala kokumboza.

(5) Ipayipi lensimbi yesakhiwo elidiphu elishisayo, elilingana nokwelashwa kwe-annealing, lingathuthukisa ngempumelelo izakhiwo zemishini ye-matrix yensimbi ukuze kuqedwe ingcindezi yokwenza insimbi yokushisela, ihambisana nesakhiwo sensimbi ukuze sijike.

(6) Ubuso bepayipi elibandayo elidonsayo elingenamthungo ngemva kokushiswa kukathayela buyakhanya futhi buhle.

(7) Ungqimba oluhlanzekile lwezinc luwungqimba olushisa kakhulu lukathayela, imvelo yalo ngokuyisisekelo lusondelene ne-zinc ehlanzekile, ene-ductility, ngakho lugcwele ukuguquguquka.