Ƙarfe Mai Kyau mai Kyau na China
| Maki | Daraja | Abubuwan sinadaran% | ||||
| C | Mn | Si | S | P | ||
| Q235 | A/B | 0.12 ~ 0.22 | 0.30 ~ 0.65 | ≤0.35 | ≤0.045 | ≤0.045 |
| Maki | C% (t≤16mm) | Mn% | P% | S% | N | Cu | CEV② (t≤40mm) |
| Saukewa: S235JR | ≤0.17 | ≤1.40 | ≤0.035 | ≤0.035 | ≤0.012 | ≤0.55 | ≤0.35 |
| Saukewa: S275JR | ≤0.21 | ≤1.50 | ≤0.035 | ≤0.035 | ≤0.012 | ≤0.55 | ≤0.40 |
| Maki | C | Mn | P | S |
| SS400 | --- | ---- | ≤0.050 | ≤0.050 |
Ƙayyadaddun samfur na musamman.Kauri shine 8-50mm, nisa 150-625mm, tsayin 5-15m, kuma ƙayyadaddun samfuran suna da nisa sosai don saduwa da bukatun masu amfani, kuma ana iya amfani da su maimakon matsakaicin farantin, ba tare da yanke ba, kuma ana iya haɗa su kai tsaye.
Samfurin yana da haske da tsabta.Ana amfani da tsari na zubar da ruwa mai girma a karo na biyu.
Bangarorin biyu suna tsaye kuma kusurwoyin a bayyane suke.Hanya na biyu na mirgina a tsaye a cikin mirgina mai kyau yana tabbatar da kyakkyawan tsayin daka na bangarorin biyu, sasanninta bayyananne da ingantaccen ingancin bangarorin.
Ma'auni na samfurin daidai ne, bambancin ma'auni uku da bambancin matakin iri ɗaya sun fi daidai da ma'auni na karfe;samfurin yana lebur kuma madaidaiciya, kuma siffar farantin yana da kyau.Madaidaicin mirgina yana ɗaukar tsarin ci gaba da mirgina, atomatik live hannun riga atomatik iko don tabbatar da babu karfe stacking kuma babu karfe ja, babban girma daidaito na samfur, kewayon haƙuri, uku maki bambanci, iri daya sa bambanci, lankwasa sickle da sauran sigogi sun fi matsakaici. farantin, kuma farantin madaidaiciya yana da kyau.Cold shear shear, high daidaito na tsawon sizing.
Kayan samfur yana ɗaukar daidaitattun ƙasa, daidai da farantin karfe.An tsara matakan inganci da fasaha da kuma samar da su bisa ga ma'aunin YB/T4212-2010 (Q345B/Q235B koma zuwa GB/T1591-94, bi da bi.
1. Ƙarfe mai zafi da aka yi birgima dogon ƙarfe ne, mai yuwuwar birgima tare da sashin giciye na rectangular don amfanin gaba ɗaya.An bayyana ƙayyadaddun sa a cikin millimeters na kauri * nisa.Flat karfe za a iya gama karfe, amfani da aka gyara, tsani, gadoji da fences, da dai sauransu Flat karfe kuma za a iya amfani da billets da slabs ga welded karfe da laminated sheet.(Material: Q215, Q235), aiwatar da misali: GB704-1988 maimakon GB704-83, wannan misali ya shafi kauri na 3 ~ 60mm, nisa na 10 ~ 200mm, rectangular giciye-seshe na general-manufa zafi-birgima lebur karfe. .Matsayin isarwa: Ana isar da ƙaramin ƙarfe a cikin sanduna madaidaiciya.Aunawa: Flat karfe mai kayyadadden tsayi da tsayin guys ana isar da shi ta hanyar ma'aunin nauyi.
2. ƙirƙira lebur karfe ne ƙirƙira dogon karfe farantin karfe tare da rectangular giciye-section.Ƙirƙirar ƙirƙira ba wai kawai ta sami wani nau'i da girman ƙirƙira ba, amma kuma tana iya haɓaka ƙungiyar ƙarfe ta simintin gyare-gyare, haɓaka ƙarancin ƙarfe;zai iya canza rarraba kungiyar fiber, cire anisotropy, inganta kayan aikin injiniya na karfe, don inganta ƙarfin da ƙarfin ƙarfe;kuma za a iya sarrafa plasticity ne m a cikin babban karfe da kuma high gami karfe.Karfe lebur karfe ne yafi ingancin gami karfe, yafi amfani ga maɓuɓɓugan ruwa, kayan aiki da kuma muhimman inji sassa.Ƙididdigar ƙirƙira lebur karfe an bayyana a cikin mm na kauri * nisa, kuma ƙayyadaddun shine 20mm * 40mm ~ 160mm * 300mm.misali na kisa: GB/T16761-1
Sashe karfe yana daya daga cikin manyan nau'ikan karfe guda hudu (faranti, bututu, nau'in, waya).Dangane da siffar sashe, an raba sashin karfe zuwa sassa na sassa na karfe da sassa na karfe (karfe sashi).Tsohon yana nufin karfe murabba'i, karfe zagaye, karfe mai lebur, karfen kusurwa, karfe hexagonal, da dai sauransu;na karshen yana nufin I-beam, tashar karfe, karfe dogo, taga frame karfe, lankwasawa karfe, da dai sauransu.
Ƙarfe na karfe - ɓangaren sashi na karfe, mai zafi mai zafi da sanyi;zafi-birgima square karfe gefen tsawon 5-250mm;sanyi-jawo square karfe gefen tsawon 3-100mm.
Round karfe - zagaye na karfe, raba zuwa zafi-birgima, ƙirƙira da sanyi-zana uku, zafi-birgima zagaye karfe diamita 5-250mm, wanda 5-9mm yawanci amfani da albarkatun kasa don zana karfe waya, kira waya sandar. ;kamar yadda a cikin faranti ake kuma kira zafi-birgima nada.Ƙarfe da aka ƙirƙira madaidaiciya madaidaiciya ya fi kauri, ana amfani da shi azaman billet ɗin shaft.Ƙarfe mai zagaye mai sanyi mai tsayi 3-100mm, daidaito mai girma.
Ƙarfe na kusurwa - ya kasu kashi biyu nau'in ƙarfe na kusurwa daidai da mara daidaituwa.Ƙayyadaddun ƙayyadaddun ƙarfe na kusurwa yana bayyana ta girman girman gefen gefen da kauri.Yawanci ƙayyadaddun ƙayyadaddun ƙarfe na kusurwar da aka samar sune No. 2-20, watau adadin centimeters na tsawon gefen.Irin su No. 5 daidaitaccen kwana karfe wanda ke nufin gefen tsawon 5cm (50mm) karfe kusurwa.Yawan kusurwoyi iri ɗaya sau da yawa suna da kauri daban-daban na 2-7.
Lebur karfe nauyi Hanyar lissafin
Flat karfe: nauyi a kowace mita = 0.00785 * kauri * fadin gefe
