China Umgangatho Hot Rolled Flat Bar Steel
| Amabanga | IBanga | Ukwakheka kweekhemikhali% | ||||
| C | Mn | Si | S | P | ||
| Q235 | A/B | 0.12~0.22 | 0.30~0,65 | ≤0.35 | ≤0.045 | ≤0.045 |
| Amabanga | C% (t≤16mm) | Mn% | P% | S% | N | Cu | 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 |
Iimpawu ezikhethekileyo zemveliso.Ubukhulu buyi-8-50mm, ububanzi bu-150-625mm, ubude be-5-15m, kwaye imilinganiselo yemveliso isondelelene ngokusondeleyo ukuhlangabezana neemfuno zabasebenzisi, kwaye ingasetyenziswa endaweni yepleyiti ephakathi, ngaphandle kokusika, kwaye inokudityaniswa ngokuthe ngqo.
Umphezulu wemveliso uqaqambile kwaye ucocekile.Inkqubo yokunciphisa uxinzelelo lwamanzi oluphezulu isetyenziselwa okwesibini.
Amacala amabini athe nkqo kwaye iikona zicacile.Ukugqithiswa kwesibini kwe-vertical rolling kwi-fine rolling iqinisekisa ukuma okulungileyo kwamacala omabini, iikona ezicacileyo kunye nomgangatho omhle wamacala.
Umlinganiselo wemveliso uchanekile, umahluko wamanqaku amathathu kunye nomgangatho ofanayo ungcono kunomgangatho weplate yensimbi;imveliso ithe tyaba kwaye ithe tye, kwaye imilo yepleyiti ilungile.Ukuqengqeleka okuchanekileyo kwamkela inkqubo eqhubekayo yokuqengqeleka, umkhono ozenzekelayo wokulawula ngokuzenzekelayo ukuqinisekisa ukuba akukho ntsimbi yokupakisha kwaye akukho nto itsalwayo, ukuchaneka okuphezulu kwemveliso, uluhlu lokunyamezelana, umahluko wamanqaku amathathu, umahluko webakala elifanayo, ukugoba kwerhengqa kunye nezinye iiparamitha zingcono kunomgangatho ophakathi. ipleyiti, kunye nokuthe tye kwepleyiti kulungile.Ukucheba okubandayo, ukuchaneka okuphezulu kokulinganisa ubude.
Izinto zemveliso zithatha umgangatho wesizwe, ngokufanayo nepleyiti yensimbi.Umgangatho kunye nemigangatho yobugcisa ihlelwe kwaye iveliswa ngokwemigangatho ye-YB / T4212-2010 (Q345B / Q235B ibhekisela kwi-GB / T1591-94, ngokulandelanayo.
1. I-Hot-rolled flat steel yintsimbi ende, enokuthi igqitywe kunye ne-rectangular cross-section yokusetyenziswa ngokubanzi.Iinkcukacha zayo zibonakaliswe ngeemilimitha zobukhulu* ububanzi.Intsimbi ye-Flat ingagqitywa yintsimbi, isetyenziselwa amacandelo, i-ladders, iibhulorho kunye neecingo, njl.(Izinto: Q215, Q235), umgangatho wokuphunyezwa: GB704-1988 endaweni ye-GB704-83, lo mgangatho usebenza kubukhulu be-3 ~ 60mm, ububanzi be-10 ~ 200mm, i-cross-section ye-rectangular ye-hot-rolled flat steel .Ubume bokuhanjiswa: Intsimbi yeFlat ihanjiswa ngemivalo ethe tye.Umlinganiselo: Intsimbi yentsimbi yobude obusisigxina kunye nobude babafana buhanjiswa ngobunzima bethiyori.
2. intsimbi eyakhiweyo yentsimbi yenziwe ipleyiti yentsimbi ende kunye necandelo lomnqamlezo oluxande.I-Forging ayikwazi ukufumana kuphela imilo ethile kunye nobukhulu be-forgings, kodwa inokuphucula kakhulu umbutho wentsimbi, ukuphucula ubuninzi bentsimbi;unokutshintsha ukuhanjiswa kwentlangano yefiber, ukususa i-anisotropy, ukuphucula iimpawu zomatshini zetsimbi, ukwenzela ukuba amandla kunye nokuqina kwentsimbi kuphuculwe;kwaye inokucutshungulwa iplastiki iphantsi kwintsimbi ephezulu kunye nentsimbi ephezulu ye-alloy.Intsimbi ethe tyaba eyakhiweyo iyintsimbi ekumgangatho ophezulu, esetyenziswa kakhulu kwimithombo, izixhobo kunye namacandelo abalulekileyo oomatshini.Ukucaciswa kwentsimbi eqingqiweyo eyenziwe ngentsimbi ibonakaliswe kwi-mm yobukhulu * ububanzi, kwaye inkcazo yi-20mm * 40mm ~ 160mm * 300mm.umgangatho wokwenziwa: GB/T16761-1
Intsimbi yecandelo yenye yeentlobo ezine eziphambili zentsimbi (ipleyiti, ityhubhu, uhlobo, ucingo).Ngokwemilo yecandelo, intsimbi yecandelo ihlulwe ibe yintsimbi yecandelo elilula kunye nentsimbi yecandelo eliyinkimbinkimbi (intsimbi yecandelo).Eyangaphambili ibhekisela kwintsimbi yesikwere, intsimbi ejikelezayo, intsimbi eyisicaba, intsimbi ye-angle, intsimbi ye-hexagonal, njl.;le yokugqibela ibhekisela kwi-I-beam, intsimbi yentsimbi, intsimbi yensimbi, intsimbi yefestile, intsimbi yokugoba, njl.
Intsimbi yesikwere - intsimbi yecandelo lesikwere, ishushu-eshushu kwaye ibanda;intsimbi eshushu-eqengqelekayo ubude kwicala lentsimbi 5-250mm;ubude becala lentsimbi yesikwere ebandayo 3-100mm.
Intsimbi ejikelezayo - icandelo elijikelezileyo lentsimbi, yahlulahlulwe yaba yintsimbi eshushu, ityhidiweyo kunye nebandayo emithathu, ishushu-ejikelezwe ngeenxa zonke yentsimbi 5-250mm, apho i-5-9mm isetyenziswa ngokuqhelekileyo njengezinto ezisetyenziselwa ukuzoba ucingo lwentsimbi, olubizwa ngokuba yi-wire rod. ;njengoko kunikezelo lwepleyiti ikwabizwa ngokuba yikhoyili eqengqelekayo eshushu.Intsimbi ejiyileyo engqushiweyo etyhidiweyo ijiyile, isetyenziswa njenge billet yeshaft.I-cold-drawn round iron diameter 3-100mm, ukuchaneka okuphezulu komgangatho.
Intsimbi ye-angle - yahlulwe yaba ziindidi ezimbini zentsimbi elinganayo nengalinganiyo.Inkcazo yentsimbi ye-angle ibonakaliswe ngobukhulu becala lobude kunye nobukhulu becala.Ngokuqhelekileyo iinkcukacha zentsimbi ye-angle eveliswayo ziyiNombolo ye-2-20, oko kukuthi inani leesentimitha zobude becala.Ezinje ngeNombolo ye-5 yentsimbi elinganayo yentsimbi ebhekiselele kubude becala le-5cm (50mm) yentsimbi yentsimbi.Inani elifanayo lee-engile lihlala linama-2-7 ahlukeneyo amacandelo ahlukeneyo.
Indlela yokubala ubunzima bentsimbi
Flat steel: ubunzima imitha = 0.00785 * ubukhulu * icala ububanzi
