Mukuvaka nekuvaka, kushandiswa kwesimbi yemugero (inowanzonzi simbi yechikamu cheC) kwakajairika. Nzira idzi dzakagadzirwa nesimbi uye dzakaumbwa seC, ndosaka zita racho richinzi. Dzinowanzo shandiswa muindasitiri yekuvaka uye dzine mashandisirwo akasiyana-siyana. Kuti ive nechokwadi chekuti mhando uye zvinodiwa zvesimbi yechikamu cheC zvinochengetedzwa, American Society for Testing and Materials (ASTM) inovandudza mwero wezvigadzirwa izvi.
Mutemo weASTM weSimbi yakaita seCinonzi ASTM A36. Mutemo uyu unosanganisira maumbirwo esimbi yekabhoni yemhando yepamusoro yezvivakwa kuti ishandiswe mukuvaka mabhiriji nezvivakwa zvine rivets, mabhaudhi kana welded uye pazvinangwa zvekuvaka. Mutemo uyu unotsanangura zvinodiwa pakuumbwa, hunhu hwemakanika uye humwe hunhu hwakakosha hwesimbi yekabhoni C-sections.
Chimwe chezvinhu zvakakosha zveASTM A36 standard yeSimbi yeC-chiteshindiyo makemikari esimbi inoshandiswa mukugadzirwa kwayo. Mutemo uyu unoda kuti simbi inoshandiswa muzvikamu zveC ive nemazinga akatarwa ekabhoni, manganese, phosphorus, sarufa nemhangura. Izvi zvinovimbisa kuti simbi inoshandiswa muC-channel ine hunhu hunodiwa kuti ipe simba uye kugara kwenguva refu zvinodiwa pakushandiswa kwechivako.
Pamusoro pekuumbwa kwemakemikari, chiyero cheASTM A36 chinotsanangurawo hunhu hwesimbi inoshandiswa musimbi yechikamu cheC. Izvi zvinosanganisira zvinodiwa kuti ikure, kusimba kwekudhonza uye kureba kwesimbi. Hunhu uhwu hwakakosha kuve nechokwadi chekuti simbi yeC-channel ine simba rinodiwa uye ductility kuti ikwanise kutsungirira mitoro nematambudziko anowanikwa mukuvaka.
Mutemo weASTM A36 unosanganisirawo kushivirirana kwemativi uye zvinodiwa zvekutwasuka uye kugokora kwesimbi yechikamu cheC. Izvi zvinovimbisa kuti zvikamu zveC zvakagadzirwa zvinoenderana nechiyero ichi zvinosangana nezvinodiwa zvehukuru nechimiro zvinodiwa pakushandiswa kwazvo mumabasa ekuvaka.
Kazhinji, mwero weASTM A36 wesimbi yakaita seC unopa zvese zvinodiwa kuti simbi idzi dzive dzemhando yepamusoro uye dzishande zvakanaka. Nekutevedzera mwero uyu, vagadziri vanogona kuve nechokwadi chekuti zvikamu zveC zvavanogadzira zvinosangana nezvinodiwa pakuvaka.
Muchidimbu, chiyero cheASTM cheSimbi yeC-chiteshi, inozivikanwa seASTM A36, inotsanangura zvinodiwa pakuumbwa kwemakemikari, hunhu hwemakanika, uye kushivirira kwesimbi idzi. Nekuzadzisa zvinodiwa izvi, vagadziri vanogona kugadzira zvikamu zveC zvemhando yepamusoro zvinosangana nezvinodiwa pakushandiswa kwakasiyana-siyana kwekuvaka. Ingava mabhiriji, michina yemaindasitiri kana zvivakwa, kutevedzera mitemo yeASTM zvikamu zveC zvinovimbisa kuchengetedzeka nekuvimbika kwesimbi inoshandiswa.
Nguva yekutumira: Kurume-07-2024