Iintsimbi eziphakathi neziphantsi liqela elikhulu leentsimbi zealloyi ezinezinto zokuxutywa (ikakhulu iikhemikhali ezifana nesilicon, manganese, chromium, molybdenum, nickel, copper kunye nevanadium) umxholo ongaphantsi kwe-8%. Intsimbi ephakathi kunye nephantsi i-alloy castings inokuqina okulungileyo, kunye neempawu ezilungileyo zoomatshini ezibanzi zinokufumaneka emva konyango olufanelekileyo lobushushu.
IiNgcaciso zoNyango loBubushushu beNsimbi yentsimbi ePhantsi kunye nePhakathi
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| IBanga | Steel Category | Iinkcukacha zoNyango loBubushushu | |||
| Indlela yoNyango | Ubushushu / ℃ | Indlela yokupholisa | Ukuqina / HBW | ||
| ZG16Mn | Intsimbi yeManganese | Ukuqheleka | 900 | Ukupholisa emoyeni | / |
| Ukufudumeza | 600 | ||||
| ZG22Mn | Intsimbi yeManganese | Ukuqheleka | 880 - 900 | Ukupholisa emoyeni | 155 |
| Ukufudumeza | 680 - 700 | ||||
| ZG25Mn | Intsimbi yeManganese | Ukuhlamba okanye ukufudumala | / | / | 155 - 170 |
| ZG25Mn2 | Intsimbi yeManganese | 200 - 250 | |||
| ZG30Mn | Intsimbi yeManganese | 160 - 170 | |||
| ZG35Mn | Intsimbi yeManganese | Ukuqheleka | 850 - 860 | Ukupholisa emoyeni | / |
| Ukufudumeza | 560 - 600 | ||||
| ZG40Mn | Intsimbi yeManganese | Ukuqheleka | 850 - 860 | Ukupholisa emoyeni | 163 |
| Ukufudumeza | 550 - 600 | Ukupholisa kwiziko | |||
| ZG40Mn2 | Intsimbi yeManganese | Ukuhlaziya | 870 - 890 | Ukupholisa kwiziko | 187 - 255 |
| Ukucima | 830 - 850 | Ukupholisa kwioli | |||
| Ukufudumeza | 350 - 450 | Ukupholisa emoyeni | |||
| ZG45Mn | Intsimbi yeManganese | Ukuqheleka | 840 - 860 | Ukupholisa emoyeni | 196 - 235 |
| Ukufudumeza | 550 - 600 | Ukupholisa kwiziko | |||
| ZG45Mn2 | Intsimbi yeManganese | Ukuqheleka | 840 - 860 | Ukupholisa emoyeni | ≥ 179 |
| Ukufudumeza | 550 - 600 | Ukupholisa kwiziko | |||
| ZG50Mn | Intsimbi yeManganese | Ukuqheleka | 860 - 880 | Ukupholisa emoyeni | 180 - 220 |
| Ukufudumeza | 570 - 640 | Ukupholisa kwiziko | |||
| ZG50Mn2 | Intsimbi yeManganese | Ukuqheleka | 850 - 880 | Ukupholisa emoyeni | / |
| Ukufudumeza | 550 - 650 | Ukupholisa kwiziko | |||
| ZG65Mn | Intsimbi yeManganese | Ukuqheleka | 840 - 860 | / | 187 - 241 |
| Ukufudumeza | 600 - 650 | ||||
| ZG20SiMn | Intsimbi yeSilico-Manganese | Ukuqheleka | 900 - 920 | Ukupholisa emoyeni | 156 |
| Ukufudumeza | 570 - 600 | Ukupholisa kwiziko | |||
| ZG30SiMn | Intsimbi yeSilico-Manganese | Ukuqheleka | 870 - 890 | Ukupholisa emoyeni | / |
| Ukufudumeza | 570 - 600 | Ukupholisa kwiziko | |||
| Ukucima | 840 - 880 | Ukupholisa kwioli / emanzini | / | ||
| Ukufudumeza | 550 - 600 | Ukupholisa kwiziko | |||
| ZG35SiMn | Intsimbi yeSilico-Manganese | Ukuqheleka | 860 - 880 | Ukupholisa emoyeni | 163 - 207 |
| Ukufudumeza | 550 - 650 | Ukupholisa kwiziko | |||
| Ukucima | 840 - 860 | Ukupholisa kwioli | 196 - 255 | ||
| Ukufudumeza | 550 - 650 | Ukupholisa kwiziko | |||
| ZG45SiMn | Intsimbi yeSilico-Manganese | Ukuqheleka | 860 - 880 | Ukupholisa emoyeni | / |
| Ukufudumeza | 520 - 650 | Ukupholisa kwiziko | |||
| ZG20MnMo | Intsimbi yeManganese Molybdenum | Ukuqheleka | 860 - 880 | / | / |
| Ukufudumeza | 520 - 680 | ||||
| ZG30CrMnSi | Chromium Manganese Silicon Steel | Ukuqheleka | 800 - 900 | Ukupholisa emoyeni | 202 |
| Ukufudumeza | 400 - 450 | Ukupholisa kwiziko | |||
| I-ZG35CrMnSi | Chromium Manganese Silicon Steel | Ukuqheleka | 800 - 900 | Ukupholisa emoyeni | ≤ 217 |
| Ukufudumeza | 400 - 450 | Ukupholisa kwiziko | |||
| Ukuqheleka | 830 - 860 | Ukupholisa emoyeni | / | ||
| 830 - 860 | Ukupholisa kwioli | ||||
| Ukufudumeza | 520 - 680 | Ukupholisa emoyeni/eziko | |||
| ZG35SiMnMo | Silico-manganese-molybdenum intsimbi | Ukuqheleka | 880 - 900 | Ukupholisa emoyeni | / |
| Ukufudumeza | 550 - 650 | Ukupholisa emoyeni/eziko | |||
| Ukucima | 840 - 860 | Ukupholisa kwioli | / | ||
| Ukufudumeza | 550 - 650 | Ukupholisa kwiziko | |||
| I-ZG30Cr | Intsimbi yeChrome | Ukucima | 840 - 860 | Ukupholisa kwioli | ≤ 212 |
| Ukufudumeza | 540 - 680 | Ukupholisa kwiziko | |||
| I-ZG40Cr | Intsimbi yeChrome | Ukuqheleka | 860 - 880 | Ukupholisa emoyeni | ≤ 212 |
| Ukufudumeza | 520 - 680 | Ukupholisa kwiziko | |||
| Ukuqheleka | 830 - 860 | Ukupholisa emoyeni | 229 - 321 | ||
| Ukucima | 830 - 860 | Ukupholisa kwioli | |||
| Ukufudumeza | 525 - 680 | Ukupholisa kwiziko | |||
| I-ZG50Cr | Intsimbi yeChrome | Ukucima | 825 - 850 | Ukupholisa kwioli | ≥ 248 |
| Ukufudumeza | 540 - 680 | Ukupholisa kwiziko | |||
| I-ZG70Cr | Intsimbi yeChrome | Ukuqheleka | 840 - 860 | Ukupholisa emoyeni | ≥ 217 |
| Ukufudumeza | 630 - 650 | Ukupholisa kwiziko | |||
| ZG35SiMo | Intsimbi yeSilicon Molybdenum | Ukuqheleka | 880 - 900 | / | / |
| Ukufudumeza | 560 - 580 | ||||
| ZG20Mo | Intsimbi yeMolybdenum | Ukuqheleka | 900 - 920 | Ukupholisa emoyeni | 135 |
| Ukufudumeza | 600 - 650 | Ukupholisa kwiziko | |||
| ZG20CrMo | Intsimbi ye-Chrome-molybdenum | Ukuqheleka | 880 - 900 | Ukupholisa emoyeni | 135 |
| Ukufudumeza | 600 - 650 | Ukupholisa kwiziko | |||
| ZG35CrMo | Intsimbi ye-Chrome-molybdenum | Ukuqheleka | 880 - 900 | Ukupholisa emoyeni | / |
| Ukufudumeza | 550 - 600 | Ukupholisa kwiziko | |||
| Ukucima | 850 | Ukupholisa kwioli | 217 | ||
| Ukufudumeza | 600 | Ukupholisa kwiziko | |||
Iimpawu zoNyango loBushushu lwentsimbi ePhakathi kunye nePhantsi:
1. Iintsimbi zentsimbi ephakathi nezisezantsi zisetyenziswa ikakhulu kumashishini oomatshini anjengeemoto, iitrektara, oololiwe, oomatshini bokwakha, kunye neenkqubo zamanzi. Le mizi-mveliso ifuna ukuphoswa ngamandla amahle kunye nokuqina. Ukuphosa okudinga amandla okuqina angaphantsi kwe-650 MPa, i-normalizing + ukufudumeza unyango lobushushu lusetyenziswa ngokubanzi; kwintsimbi yentsimbi ephakathi kunye nesezantsi ezifuna amandla okuqina angaphezu kwama-650 MPa, ukucima + unyango lobushushu obuphezulu kusetyenziswa. Emva kokucima kunye nokufudumala, isakhiwo se-metallurgical ye-casting casting yi-sorbite epholileyo, ukuze ufumane amandla aphezulu kunye nokuqina okulungileyo. Nangona kunjalo, xa imilo kunye nobukhulu bokuphosa akufanelekanga ukucima, i-normalizing + tempering kufuneka isetyenziswe endaweni yokucima kunye nokufudumala.
2. Kungcono ukwenza i-normalization okanye i-normalization + i-temperature pretreatment ngaphambi kokucima kunye nokutshisa i-alloy steel castings ephakathi kunye nephantsi. Ngale ndlela, i-crystal grain of casting casting iyakwazi ukucocwa kunye neyunifomu yesakhiwo, ngaloo ndlela iphucula umphumo wokugqibela wokucinywa kunye nokunyangwa, kunye nokunceda ukuphepha imiphumo emibi yokuxinzezeleka koxinzelelo ngaphakathi kokuphosa.
3. Emva kokuba unyango lokucima, i-alloy iron castings ephakathi kunye nephantsi kufuneka ifumane isakhiwo se-martensite kangangoko kunokwenzeka. Ukuze ufezekise le njongo, ubushushu bokucima kunye nokupholisa kufuneka kukhethwe ngokwenqanaba lentsimbi, ukuqina, ukuphosa udonga, imilo kunye nezinye izinto.
4. Ukuze ulungelelanise isakhiwo sokucima intsimbi etyhidiweyo kunye nokuphelisa uxinzelelo lokucima, i-medium and low alloy iron castings kufuneka ihlanjululwe ngokukhawuleza emva kokucima.
5. Ngaphantsi kwesiseko sokunganciphisi amandla ensimbi yensimbi, i-medium-carbon low-alloy high-high-foring steel castings ingaba nzima. Ukunyangwa kwe-toughening kunokuphucula iplastiki kunye nokuqina kweentsimbi zentsimbi.
Ubushushu kunye noBulukhuni beNsimbi ye-Alloy ephantsi emva kwe-QT yoNyango lwe-Heat
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| IBanga leNsimbi yeNsimbi ePhantsi kunye neliPhakathi | Ukucima Ubushushu / ℃ | Ubushushu bobushushu / ℃ | Ukuqina / HBW |
| ZG40Mn2 | 830 - 850 | 530 - 600 | 269 - 302 |
| ZG35Mn | 870 - 890 | 580 - 600 | ≥ 195 |
| ZG35SiMnMo | 880 - 920 | 550 - 650 | / |
| I-ZG40Cr1 | 830 - 850 | 520 - 680 | / |
| I-ZG35Cr1Mo | 850 - 880 | 590 - 610 | / |
| ZG42Cr1Mo | 850 - 860 | 550 - 600 | 200 - 250 |
| I-ZG50Cr1Mo | 830 - 860 | 540 - 680 | 200 - 270 |
| ZG30CrNiMo | 860 - 870 | 600 - 650 | ≥ 220 |
| ZG34Cr2Ni2Mo | 840 - 860 | 550 -600 | 241 - 341 |
Ixesha lokuposa: Jul-31-2021