I-China Quality Hot Rolled Flat Bar Steel
| Amabanga | Ibanga | Ukwakheka kwamakhemikhali % | ||||
| 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 | I-CEV② (t≤40mm) |
| I-S235JR | ≤0.17 | ≤1.40 | ≤0.035 | ≤0.035 | ≤0.012 | ≤0.55 | ≤0.35 |
| I-S275JR | ≤0.21 | ≤1.50 | ≤0.035 | ≤0.035 | ≤0.012 | ≤0.55 | ≤0.40 |
| Amabanga | C | Mn | P | S |
| I-SS400 | --- | ---- | ≤0.050 | ≤0.050 |
Imininingwane yomkhiqizo okhethekile.Ubukhulu buyi-8-50mm, ububanzi bungu-150-625mm, ubude bungu-5-15m, futhi imininingwane yomkhiqizo ihlukaniswe eduze ukuze ihlangabezane nezidingo zabasebenzisi, futhi ingasetshenziswa esikhundleni sepuleti eliphakathi, ngaphandle kokusika, futhi ingashiswa ngokuqondile.
Ubuso bomkhiqizo bugqamile futhi buhlanzekile.Inqubo yokwehliswa kwamanzi anengcindezi ephezulu isetshenziswa okwesibili.
Izinhlangothi zombili ziqondile futhi amakhona acacile.Ukudlula kwesibili kokugoqa okuqondile ekugoqeni okuhle kuqinisekisa ukuma okuhle kwezinhlangothi zombili, amakhona acacile kanye nekhwalithi enhle yendawo yezinhlangothi.
Isikali somkhiqizo sinembile, umehluko wamaphuzu amathathu kanye nomehluko wezinga elifanayo kungcono kunendinganiso yepuleti lensimbi;umkhiqizo uyisicaba futhi uqondile, futhi ukuma kwepuleti kuhle.Ukugoqa okunembayo kusebenzisa inqubo yokugoqa eqhubekayo, isilawuli esizenzakalelayo somkhono ophilayo ukuze kuqinisekiswe ukuthi akukho ukunqwabelana kwensimbi futhi akukho ukudonsa kwensimbi, ukunemba okuphezulu komkhiqizo, uhla lokubekezelela, umehluko wamaphuzu amathathu, umehluko webanga elifanayo, ukugoba kwesikela namanye amapharamitha angcono kunomumo. ipuleti, nokuqina kwepuleti kuhle.Ukugunda okubandayo, ukunemba okuphezulu kokulinganisa ubude.
Izinto zomkhiqizo zamukela indinganiso kazwelonke, efanayo nepuleti lensimbi.Izindinganiso zekhwalithi nezobuchwepheshe zihlelwa futhi zikhiqizwa ngokuvumelana ne-YB/T4212-2010 ejwayelekile (Q345B/Q235B ibhekisela ku-GB/T1591-94, ngokulandelana.
1. Insimbi eyisicaba egoqwe ngokushisayo iyinsimbi ende, okungenzeka ukuthi igoqeke enesiphambano esingunxande ukuze isetshenziswe ngokujwayelekile.Ukucaciswa kwayo kuvezwe ngamamilimitha obukhulu* ububanzi.Insimbi eyisicaba ingaqedwa njengensimbi, isetshenziselwe izingxenye, izitebhisi, amabhuloho kanye nocingo, njll. Insimbi eyisicaba ingasetshenziswa futhi njengamabhilidi nama-slabs ensimbi eshiselwe kanye neshidi elakhiwe.(Material: Q215, Q235), indinganiso yokuqaliswa: GB704-1988 esikhundleni se-GB704-83, leli zinga lisebenza kugqinsi 3 ~ 60mm, ububanzi 10 ~ 200mm, unxande cross-section of general-purpose hot-rolled flat steel .Isimo sokulethwa: Insimbi eyisicaba ilethwa ngemigoqo eqondile.Isilinganiso: Insimbi eyisicaba yobude obungashintshi kanye nobude babafana ilethwa ngesisindo sethiyori.
2. insimbi eyisicaba engumgunyathi yenziwe ngensimbi ende ene-cross-section engunxande.I-Forging ayikwazi nje ukuthola isimo esithile kanye nosayizi we-forgings, kodwa futhi ingathuthukisa kakhulu inhlangano yensimbi yensimbi, ithuthukise ukuminyana kwensimbi;ingashintsha ukusabalalisa kwenhlangano ye-fiber, isuse i-anisotropy, ithuthukise izakhiwo zemishini yensimbi, ukuze amandla nokuqina kwensimbi kuthuthukiswe;futhi ingacutshungulwa ipulasitiki iphansi ensimbi ephezulu nensimbi ephezulu ye-alloy.Forged flat steel ngokuyinhloko izinga okusezingeni eliphezulu ingxubevange steel, ikakhulukazi ezisetshenziselwa iziphethu, amathuluzi kanye nezingxenye ezibalulekile mechanical.Ukucaciswa kwensimbi eyisicaba eyenziwe ngomgunyathi kuvezwa ngobukhulu * ububanzi, futhi ukucaciswa kungu-20mm*40mm~160mm*300mm.izinga lokukhishwa: GB/T16761-1
Insimbi yesigaba ingenye yezinhlobo ezine ezinkulu zensimbi (ipuleti, ishubhu, uhlobo, ucingo).Ngokusho kokuma kwesigaba, insimbi yesigaba ihlukaniswe ngensimbi yesigaba esilula kanye nensimbi yesigaba esiyinkimbinkimbi (insimbi yesigaba).Owokuqala ubhekisela ensimbi yesikwele, insimbi eyindilinga, insimbi eyisicaba, insimbi ye-engeli, insimbi ene-hexagonal, njll.;lokhu kokugcina kubhekisela ku-I-beam, insimbi yesiteshi, isitimela sensimbi, insimbi yohlaka lwamafasitela, insimbi egobayo, njll.
Insimbi yesikwele - insimbi yesigaba sesikwele, i-hot-rolled and cold-rolled;insimbi eshisayo igingqiwe ubude ohlangothini lwensimbi 5-250mm;ubude obuhlangothini bensimbi yesikwele edonswa ngokubanda 3-100mm.
Insimbi eyindilinga - ingxenye eyindilinga yensimbi, ihlukaniswe yaba yizinsimbi ezintathu ezigoqiwe ezishisayo, ezakha futhi ezidonswa ngokubanda, ububanzi obuyindilinga obuyindilinga obushisayo obuyindilinga obungu-5-250mm, obungu-5-9mm obuvame ukusetshenziswa njengezinto ezingavuthiwe zokudweba ucingo lwensimbi, olubizwa ngokuthi i-wire rod. ;njengoba ukunikezwa kwepuleti kubizwa nangokuthi ikhoyili egoqelwe eshisayo.Insimbi eyakhiwe eyindilinga eqondile ijiyile, isetshenziswa njenge-shaft billet.Ububanzi bensimbi obuyindilinga obudonswe ngokubanda obungu-3-100mm, ukunemba kobukhulu obuphezulu.
I-Angle steel - ihlukaniswe yaba izinhlobo ezimbili zensimbi ye-engeli elinganayo nengalingani.Ukucaciswa kwensimbi ye-engeli kuvezwa ubukhulu bobude obuhlangothini kanye nokuqina kwezinhlangothi.Ngokuvamile imininingwane yensimbi ye-angle ekhiqizwayo inguNo. 2-20, okungukuthi inani lamasentimitha obude obuhlangothini.Njengensimbi ye-engeli engu-5 ye-equilateral ebhekisela kubude obuseceleni bensimbi ye-engeli engu-5cm (50mm).Inombolo efanayo yama-engeli ngokuvamile inobukhulu obuyi-2-7 obuhlukene.
Indlela yokubala isisindo sensimbi eyisicaba
Insimbi flat: isisindo imitha = 0.00785 * ukujiya * side ububanzi
