Ngaphambi kokukhulumaisikhuntaizinto zokwakha, kufanele siqale siqonde ezinye izinto eziyisisekelo ngomjovoisikhunta.Okokuqala ukuhlukaniswa kweisikhunta.Ngokuvamile, isikhunta sihlukaniswe ngamaleveli amahlanu ngokuya ngobude bempilo yenkonzo.Izinga lokuqala izikhathi ezingaphezu kwesigidi, kanti izinga lesibili 500,000- — 1 million izikhathi, izinga lesithathu phakathi 300,000 futhi 500,000 izikhathi, izinga lesine liphakathi 100,000 futhi 300,000 izikhathi, futhi izinga lesihlanu ingaphansi izikhathi 100,000 .Kokubili eyokuqala neyesibiliisikhuntaKudingeka ukuthi kusetshenziswe Ukwelashwa ngokushisa kwensimbi ngobulukhuni obungaba ngu-HRC50, ngaphandle kwalokho kulula ukukugqoka, kanye nomjovobunjiweumkhiqizo kulula ukuphuma ekubekezeleleni.Ngakho-ke, insimbi ekhethiwe kufanele ibe nokusebenza okuhle kokwelashwa kokushisa nokusebenza okuhle kokusika ngaphansi kobunzima obuphezulu.Yiqiniso, kuphinde Kukhona ezinye izinto.Ngoba akuvamile ukuthi ngihlangane nopulasitiki wasekhayaisikhuntasteel, ngingethula kuphela izinto ezingenisiwe ezivame ukusetshenziswa e-Pearl River Delta.Ngokuvamile khetha 8407, S136 e-Sweden, 420, H13 e-United States, 2316, 2344, 083 eYurophu, noma SKD61, DC53 e-Japan (okwakuyizinto zokubunjwa zensimbi phambilini, ezazisetshenziswa ngaphansi kwezimo ezikhethekile).Ngaphezu kwalokho, izinto zokusetshenziswa zokubumba umjovo kanye nezigcwalisi ezengeziwe zinethonya elikhulu ekukhethweni, ikakhulukazi i-fiber yengilazi igqoka kakhuluisikhunta.
Ezinye izinto zepulasitiki ziyagqwalisa i-asidi, kanti ezinye zengezwa nama-ejenti aqinisayo noma ezinye izilungisi.Isibonelo, i-glass fiber ingabangela umonakalo omkhulu esikhunjeni.Ngakho-ke, kufanele kucatshangelwe kabanzi ekukhethweni kwezinto zokwakha.Kumapulasitiki agqwala kakhulu, ngokuvamile khetha insimbi yohlobo lwe-S136, 2316, 420, kanye namapulasitiki agqwalile abuthaka, ngaphezu kwe-S136, 2316, 420, kukhona i-SKD61, NAK80, PAK90, 718M.Izinto zepulasitiki ezine-acidic kakhulu zifaka: i-PVC, i-POM, i-PBT.Izinto zepulasitiki ezine-acidic ezibuthakathaka zihlanganisa: i-PC, i-PP, i-PMMA, i-PA,
Izidingo zokubukeka komkhiqizo nazo zinethonya elikhulu ekukhethweni kwezinto zokubumba.Ezingxenyeni ezisobala nemikhiqizo enendawo efana nesibuko, izinto ezitholakalayo yi-s136, 2316, 718S, NAK80, PAK90, 420, kanyeisikhuntangokusobala okuphezulu kakhulu kufanele kukhethwe.I-S136, ilandelwa yi-420.
Lokhu okungenhla kumayelana nokuhlangabezana nezidingo zomkhiqizo, kodwa njengomklami, uma ucabangela lezi kuphela, ngeke nje ukwazi ukuba umklami omuhle, ungase ube nezinkinga ngomsebenzi wakho, kanye nezindlekoisikhuntaubandakanya kubalulekile.Okubaluleke kakhulu ukuthi kufanele ucabangele intengo.Qhathanisa u-s136 no-2316. Umehluko ngamayuan angama-55-60 ngekhilogremu.Uma ukhetha ngendlela engafanele, umphathi wakho uzohluleka ukuthola i-oda noma ashone.
Ziningi izinto eziqinisiwe ngaphambilini zokubumba zezinga lesithathu, amabanga yilawa: S136H, 2316H, 718H, 083H, ubulukhuni buyi-HB270—-340, isikhunta sezinga lesine nelesihlanu sisebenzisa i-P20, 718, 738, 618, 2311, 2711, ngezidingo eziphansi kakhulu Ukuzeisikhunta,kungenzeka ukusebenzisa S50C, 45# steel, okungukuthi, ukwenza umgodi ngqo phezuisikhuntaisisekelo.Iglue yengilazi engenanhlamvu)