Insimbi Yebha Egoqekile Eshisayo Esezingeni Eliphezulu YaseShayina
| Amabanga | Ibanga | Ukwakheka kwamakhemikhali % | ||||
| C | Mn | Si | S | P | ||
| Q235 | I-A/B | 0.12~0.22 | 0.30~0.65 | ≤0.35 | ≤0.045 | ≤0.045 |
| Amabanga | I-C% (t≤16mm) | Mn% | P% | S% | N | Cu | I-CEV② (t≤40mm) |
| S235JR | ≤0.17 | ≤1.40 | ≤0.035 | ≤0.035 | ≤0.012 | ≤0.55 | ≤0.35 |
| S275JR | ≤0.21 | ≤1.50 | ≤0.035 | ≤0.035 | ≤0.012 | ≤0.55 | ≤0.40 |
| Amabanga | C | Mn | P | S |
| SS400 | --- | ---- | ≤0.050 | ≤0.050 |
Imininingwane yomkhiqizo ekhethekile. Ubukhulu bungu-8-50mm, ububanzi bungu-150-625mm, ubude bungu-5-15m, kanti imininingwane yomkhiqizo iseduze ukuze ihlangabezane nezidingo zabasebenzisi, futhi ingasetshenziswa esikhundleni sepuleti eliphakathi, ngaphandle kokusika, futhi ingashintshwa ngqo.
Ubuso bomkhiqizo bukhanya futhi buhlanzekile. Inqubo yokususa umfutho ophezulu wamanzi isetshenziswa okwesibili.
Izinhlangothi ezimbili ziqondile futhi amakhona acacile. Ukudlula kwesibili kokugoqa okuqondile ekugoqeni kahle kuqinisekisa ukuma kahle kwezinhlangothi zombili, amakhona acacile kanye nekhwalithi enhle yobuso bezinhlangothi.
Isikali somkhiqizo sinembile, umehluko wamaphuzu amathathu kanye nomehluko wezinga elifanayo kungcono kunendinganiso yepuleti lensimbi; umkhiqizo uyisicaba futhi uqondile, futhi ukuma kwepuleti kuhle. Ukugoqa ngokunemba kusebenzisa inqubo yokugoqa eqhubekayo, ukulawula okuzenzakalelayo kwesikhafu esibukhoma ukuqinisekisa ukuthi akukho ukuhlanganiswa kwensimbi kanye nokudonsa kwensimbi, ukunemba okuphezulu komkhiqizo, ububanzi bokubekezelelana, umehluko wamaphuzu amathathu, umehluko webanga elifanayo, ukugoba kwesikela kanye neminye imingcele kungcono kunepuleti eliphakathi, futhi ukunemba kwepuleti kuhle. Ukugoqa ngombala obandayo, ukunemba okuphezulu kosayizi wobude.
Izinto zomkhiqizo zamukela indinganiso kazwelonke, efana nepuleti lensimbi. Izindinganiso zekhwalithi kanye nezobuchwepheshe zihlelwe futhi zikhiqizwa ngokwendinganiso ye-YB/T4212-2010 (i-Q345B/Q235B ibhekisela ku-GB/T1591-94, ngokulandelana.
1. Insimbi eyisicaba egoqwe ngokushisa iyinsimbi ende, engase igoqwe enengxenye engunxande engasetshenziswa ngokujwayelekile. Imininingwane yayo ivezwa ngamamilimitha obukhulu*ububanzi. Insimbi eyisicaba ingaba yinsimbi eqediwe, esetshenziselwa izingxenye, amaladi, amabhuloho kanye nothango, njll. Insimbi eyisicaba ingasetshenziswa futhi njengezinsimbi kanye nama-slabs ensimbi ehlanganisiwe kanye neshidi elibekwe laminated. (Izinto: Q215, Q235), indinganiso yokusetshenziswa: GB704-1988 esikhundleni se-GB704-83, le ndinganiso isebenza ekujikeni okungu-3 ~ 60mm, ububanzi obungu-10 ~ 200mm, ingxenye engunxande ensimbi eyisicaba egoqwe ngokushisa ejwayelekile. Isimo sokulethwa: Insimbi eyisicaba ilethwa ngemigoqo eqondile. Ukulinganisa: Insimbi eyisicaba yobude obungaguquki kanye nobude obufanayo ilethwa ngesisindo somqondo.
2. Insimbi eyisicaba eyenziwe ngobumba iyipuleti lensimbi elide elenziwe ngobumba elinengxenye engunxande. Insimbi eyisicaba ayikwazi ukuthola nje kuphela ukuma nobukhulu obuthile bensimbi ehlanganisiwe, kodwa futhi ingathuthukisa kakhulu inhlangano yensimbi ehlanganisiwe, ithuthukise ubuningi bensimbi; ingashintsha ukusatshalaliswa kwenhlangano yefayibha, isuse i-anisotropy, ithuthukise izakhiwo zemishini zensimbi, ukuze amandla nokuqina kwensimbi kuthuthukiswe; futhi ingacutshungulwa. I-plasticity iphansi ensimbini ephezulu kanye nensimbi ehlanganisiwe. Insimbi eyisicaba eyenziwe ngobumba ikakhulukazi iyinsimbi ehlanganisiwe esezingeni eliphezulu, esetshenziswa kakhulu eziphethwini, amathuluzi kanye nezingxenye ezibalulekile zemishini. Imininingwane yensimbi eyisicaba eyenziwe ngobumba ivezwa ngobubanzi obungu-mm, kanti imininingwane ingu-20mm*40mm~160mm*300mm. indinganiso yokusebenza: GB/T16761-1
Insimbi yesigaba ingenye yezinhlobo ezine ezinkulu zensimbi (ipuleti, ithubhu, uhlobo, ucingo). Ngokwesimo sesigaba, insimbi yesigaba ihlukaniswe yaba insimbi yesigaba esilula kanye nensimbi yesigaba esiyinkimbinkimbi (insimbi yesigaba). Eyokuqala ibhekisela ensimbini eyisikwele, insimbi eyindilinga, insimbi eyisicaba, insimbi engela, insimbi enezinhlangothi eziyisithupha, njll.; eyesibili ibhekisela ku-I-beam, insimbi yesiteshi, isitimela sensimbi, insimbi yohlaka lwefasitela, insimbi egobile, njll.
Insimbi eyisikwele - insimbi enesigaba esiyisikwele, egoqwe ngokushisa kanye negoqwe ngokubandayo; ubude becala lensimbi eyisikwele egoqwe ngokushisa 5-250mm; ubude becala lensimbi eyisikwele egoqwe ngokubandayo 3-100mm.
Insimbi eyindilinga - ingxenye eyindilinga yensimbi, ehlukaniswe yaba yinsimbi eyindilinga egoqwe ngokushisa, eyenziwe ngobumba kanye nedonswa ngokubandayo, ububanzi obuyi-5-250mm, okungu-5-9mm kuyo buvame ukusetshenziswa njengezinto zokusetshenziswa zokudweba ucingo lwensimbi, olubizwa ngokuthi induku yocingo; njengoba kufakwe epuletini, okuphakelwayo kubizwa nangokuthi ikhoyili egoqwe ngokushisa. Insimbi eyindilinga eyenziwe ngobumba iqondile, isetshenziswa njenge-shaft billet. Ububanzi bensimbi eyindilinga edonswa ngokubandayo buyi-3-100mm, ukunemba okuphezulu.
Insimbi engela - ihlukaniswe izinhlobo ezimbili zensimbi engela elinganayo nengalingani. Ukucaciswa kwensimbi engela kuvezwa ngobukhulu bobude becala kanye nobukhulu becala. Ngokuvamile ukucaciswa kwensimbi engela ekhiqizwayo kuyiNombolo 2-20, okungukuthi inani lamasentimitha obude becala. Njengensimbi engela elinganayo enguNombolo 5 ebhekisela kubude becala bensimbi engela engu-5cm (50mm). Inani elifanayo lama-engeli livame ukuba nobukhulu obuhlukene obungu-2-7 becala.
Indlela yokubala isisindo sensimbi eyisicaba
Insimbi eyisicaba: isisindo ngemitha = 0.00785 * ubukhulu * ububanzi becala
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