1,Menene nau'ikan karfe
1. 40Cr, 42CrMo, da dai sauransu: Yana nufin gami da tsarin karfe, wanda ke da kyakkyawan ƙarfin zafin jiki da juriya na gajiya, kuma ana amfani da shi don kera mahimman abubuwan manyan kayan aikin injiniya.Samfuran daidaitaccen ƙarfe na duniya ASTM A3 daidaitaccen tsarin ƙarfe ne na Amurka na yau da kullun, wanda ke da matsakaicin kaddarorin inji kuma galibi ana amfani da shi wajen kera kayan aikin yau da kullun.
2. Babban nau'in karfe sun haɗa da ƙarfe na musamman na carbon, carbon kayan aiki karfe, carbon spring karfe, gami spring karfe, gami tsarin karfe, ball hali karfe, gami kayan aiki karfe, high gami kayan aiki karfe, high-gudun kayan aiki karfe, bakin karfe. , Karfe mai jure zafi, da kuma gawa mai zafin jiki, madaidaicin allurai, da alluran lantarki.
3. darajar E: 26 ga samfuran gabaɗaya da waɗanda ke da a, 44 ga waɗanda ke da b, da 24 ga waɗanda ke da c.Kowane ɗayan tsayi yana cikin millimeters.Girman tsayin ƙarfe yana nufin mafi girman ma'auni na nau'ikan ƙarfe daban-daban, gami da tsayi, faɗi, tsayi, diamita, radius, diamita na ciki, diamita na waje, da kaurin bango.
4. Karfe gabaɗaya ya kasu kashi huɗu: bayanan martaba, faranti, kayan gini, da bututu.Kayayyakin bayanan martaba da faranti an rarraba su da Q235B, Q345B, da Q355B, yayin da babban kayan gini shine HRB400E, kayan bututu kuma galibi Q235B ne.
Nau'o'in bayanan martaba sun haɗa da ƙarfe mai siffar H, ƙarfe mai siffar I, ƙarfe na tashar, da ƙarfe na kusurwa.
5. Ƙarfe na musamman: yana nufin ƙarfe na musamman da ake amfani da shi a sassa daban-daban na masana'antu, irin su karfen mota, kayan aikin noma, karfen jirgin sama, karfe na masana'antu, karfen dumama karfe, karfen lantarki, waya walda, da dai sauransu A lokaci guda, da masana'anta. ƙayyadaddun samfuran bututun welded daban-daban suma sun bambanta, yawanci ana bayyana su a diamita na ƙima.
2. Yadda za a bambanta iri da kuma model na karfe
1. Bisa ga daban-daban amfani da bukatun, karfe za a iya raba daban-daban iri da kuma model.Carbon karfe classified ta hanyar sinadaran abun ciki: Karfe tare da carbon abun ciki tsakanin 008% da 11%, yafi amfani da masana'antu sassa na inji, ƙafafun, waƙoƙi, da dai sauransu.
2. Bayanin rarrabuwa na hanyar wakilcin matakin karfe a kasar Sin: 1. Carbon tsarin karfe yana kunshe da alamar Q + lamba + ingancin darajar darajar + alamar hanyar deoxygenation.Ƙarfensa an riga an tsara shi da “Q”, yana wakiltar ma’aunin ƙarfin ƙarfe, kuma lambobi masu zuwa suna wakiltar ƙimar ƙimar amfanin ƙasa, a cikin MPa.Alal misali, Q235 yana wakiltar ma'anar yawan amfanin ƙasa (σ s) 23 MPa carbon tsarin karfe.
3. Karfe ya kasu kashi hudu: bayanan martaba, faranti, kayan gini, da bututu.Daga cikin su, ana iya rarraba bayanan martaba da faranti zuwa Q235B, Q345B, da Q355B, yayin da kayan gini HRB400E kuma bututu sune Q235B.Ana iya raba nau'ikan bayanan martaba zuwa ƙarfe mai siffar H, ƙarfe mai siffar I, da sauransu.
4. Karfe na jabu;Simintin ƙarfe;Hot birgima karfe;Ƙarfe mai sanyi.Karfe da aka rarraba ta hanyar tsarin ƙarfe a cikin yanayin da aka rufe: ① karfe hypoeutectoid (ferrite + pearlite);② Eutectoid karfe (pearlite);③ Karfe hazo daga eutectic karfe (pearlite+cementite);④ Lainitic karfe (pearlite + cementite).
5. Ƙarfe mai sanyi: nau'in ƙarfe ne da aka samar da ƙarfe mai lanƙwasa sanyi ko ɗigon ƙarfe.High quality profiles: high quality zagaye karfe, square karfe, lebur karfe, hexagonal karfe, da dai sauransu b.Karfe na takarda;Bakin karfe farantin karfe: Farantin karfe mai kauri na milimita 4 ko ƙasa da haka.Matsakaici da kauri faranti: Karfe faranti mai kauri fiye da milimita 4.
6. Lambar tana wakiltar ƙimar ma'aunin ƙima, misali, Q275 tana wakiltar ma'aunin yawan amfanin ƙasa na 275Mpa.Idan harafin A, B, C, da D aka yi alama bayan matakin, yana nuna cewa ingancin karfen ya bambanta, kuma adadin S da P yana raguwa a jere, yayin da ingancin karfe ya karu a jere.
Lokacin aikawa: Fabrairu-27-2024