1,Ziziphi iintlobo zentsimbi
I-1. I-40Cr, i-42CrMo, njl.: Ibhekisela kwi-alloy structural steel, enamandla obushushu obuphezulu kunye nokumelana nokukhathala, kwaye isetyenziswa ngokuqhelekileyo ukwenza amacandelo abalulekileyo ezixhobo ezinkulu zoomatshini.Imodeli yentsimbi esemgangathweni yezizwe ngezizwe ye-ASTM A3 ngumgangatho waseMelika oqhelekileyo wentsimbi yolwakhiwo lwekhabhoni, eneempawu zoomatshini eziphakathi kwaye isetyenziswa ngokuqhelekileyo ekwenzeni amacandelo aqhelekileyo olwakhiwo.
2. Iindidi eziphambili zentsimbi ziquka intsimbi ekhethekileyo ye-carbon structural, i-carbon tool steel, i-carbon spring steel, i-alloy spring steel, i-alloy structural steel, i-ball bearing steel, i-alloy tool steel, i-high-speed tool steel, insimbi engenasici. , intsimbi ekwazi ukumelana nokushisa, kunye ne-alloys ephezulu yokushisa, i-alloys echanekileyo, kunye ne-electrothermal alloys.
3. Ixabiso lika-E: 26 kwiimodeli eziqhelekileyo kunye nezo ezino-a, 44 zezo ezino-b, kunye nama-24 zezo zine-c.Ubude beyunithi nganye buzimilimitha.Imilinganiselo yobude bentsimbi ibhekisa kwezona milinganiselo zisisiseko zeentlobo ngeentlobo zentsimbi, kubandakanywa ubude, ububanzi, ukuphakama, ububanzi, iradiyasi, idiamitha yangaphakathi, idiameter yangaphandle, kunye nobukhulu bodonga.
4. Intsimbi ngokuqhelekileyo yahlulahlulwe yangamacandelo amane: iiprofayili, iipleyiti, izinto zokwakha, kunye nemibhobho.Izinto zeprofayili kunye namacwecwe zihlelwa ngokukodwa njenge-Q235B, i-Q345B, kunye ne-Q355B, ngelixa izinto eziphambili zezinto zokwakha yi-HRB400E, kunye nezixhobo zemibhobho nazo kakhulu ziyi-Q235B.
Iindidi zeeprofayili ziquka i-H-shaped steel, i-I-shaped steel, i-channel steel, kunye nentsimbi ye-angle.
5. Intsimbi ekhethekileyo: ibhekisa kwintsimbi ekhethekileyo esetyenziswa kumacandelo ahlukeneyo oshishino, njengentsimbi yeemoto, intsimbi yoomatshini bezolimo, intsimbi yeenqwelomoya, intsimbi yokuvelisa oomatshini, intsimbi yokufudumeza iziko, intsimbi yombane, intambo yokuwelda, njl. iinkcukacha zeemveliso zemibhobho edityanisiweyo ezahlukeneyo nazo ziyahluka, ngokuqhelekileyo zibonakaliswa ngedayamitha yegama.
2, Indlela yokwahlula iintlobo kunye neemodeli zentsimbi
1. Ngokutsho kokusetyenziswa kunye neemfuno ezahlukeneyo, insimbi inokwahlulwa ibe ziindidi ezahlukeneyo kunye neemodeli.Intsimbi yeCarbon ehlelwe ngokubunjwa kweekhemikhali: Intsimbi enomxholo wekhabhoni phakathi kwe-008% kunye ne-11%, isetyenziselwa ukuvelisa iindawo zomatshini, amavili, iingoma, njl.
2. Inkcazo yokuhlelwa kwendlela yokumela ibakala lensimbi eChina: 1. Intsimbi ye-Carbon structural yenziwe nge-Q + inombolo + yesimboli yebakala lomgangatho + isimboli sendlela ye-deoxygenation.Inqanaba layo lensimbi lifakwe kwi-"Q", emele isivuno sentsimbi, kwaye amanani alandelayo abonisa ixabiso lexabiso lesivuno, kwi-MPa.Umzekelo, i-Q235 imele inqaku lesivuno ( σ s) 23 MPa carbon structural steel.
3. Intsimbi yahlulwe yaba ziindidi ezine: iiprofayili, iipleyiti, izinto zokwakha, kunye nemibhobho.Phakathi kwazo, iiprofayili kunye namacwecwe anokuthi ahlelwe kwi-Q235B, Q345B, kunye ne-Q355B, ngelixa izinto zokwakha ziyi-HRB400E kunye nemibhobho yi-Q235B.Iindidi zeeprofayili zinokwahlulwa zibe yintsimbi emise okwe-H, intsimbi emile okwe-I, njalo njalo.
4. Intsimbi eyenziweyo;Intsimbi yokuphosa;Intsimbi eshushu eqengqelekayo;Intsimbi ebandayo.Intsimbi ehlelwe ngesakhiwo se-metallographic kwimo edibeneyo: ① intsimbi ye-hypoeutectoid (i-ferrite+pearlite);② Intsimbi ye-Eutectoid (pearlite);③ Imvula yentsimbi evela kwintsimbi ye-eutectic (pearlite+samente);④ Intsimbi ye-lainitic (pearlite+cementite).
5. Intsimbi ebunjiweyo ebandayo: uhlobo lwentsimbi eyenziwe yintsimbi egobayo ebandayo okanye imicu yentsimbi.Iiprofayili ezikumgangatho ophezulu: Umgangatho ophezulu wentsimbi engqukuva, intsimbi yesikwere, intsimbi ecaba, intsimbi enehexagonal, njl. b.Iphepha lesinyithi;Ipleyiti yentsimbi ebhityileyo: Ipleyiti yentsimbi enobukhulu obuziimilimitha ezi-4 okanye ngaphantsi.Iipleyiti zentsimbi eziphakathi nezishinyeneyo: Iipleyiti zentsimbi ezinobukhulu obungaphezu kweemilimitha ezi-4.
6. Inombolo imele ixabiso lexabiso lesivuno, umzekelo, i-Q275 imele inqaku lesivuno se-275Mpa.Ukuba iileta A, B, C, kunye no-D ziphawulwe emva kwebanga, kubonisa ukuba umgangatho womgangatho wensimbi uhlukile, kwaye inani le-S kunye ne-P liyancipha ngokulandelelana, ngelixa umgangatho wensimbi ukhula ngokulandelelana.
Ixesha lokuposa: Feb-27-2024