Amakhemikhali kanye Mechanical
Ukwakheka kwamakhemikhali(wt.%) kwebanga le-Cr12: GB/T 1229-2000
| Izinto |
Okuncane. (≥) |
Ubukhulu (≤) |
| C |
2.00 |
2.30 |
| Si |
- |
0.40 |
| UMn |
- |
0.40 |
| Cr |
11.50 |
13.00 |
Izakhiwo zikamshini zebanga le-Cr12 GB/T 1229-2000
Amandla obufakazi
I-Rp0.2 (MPa) |
Amandla aqinile
Rm (MPa) |
Amandla okuthinta
I-KV (J) |
Ubude ngesikhathi sokuphuka
A (%) |
Ukwehliswa kwesigaba esiphambene ekuqhekekeni
Z (%) |
Isimo Sokuphathwa Kokushisa |
Ukuqina kwe-Brinell (HBW) |
| 539 (≥) |
215 (≥) |
42 |
14 |
42 |
Isixazululo kanye Nokuguga, Annealing, Ausaging, Q+T, njll |
244 |
I-GB Cr12 alloy tool steel material okulingana -UNS T30403
| Ibanga |
C |
Si |
UMn |
P |
S |
Cr |
Mo |
V |
| D3 |
2.00～2.35 |
0.10～0.60 |
0.20～0.60 |
0.030 MAX |
0.030 MAX |
11.0～13.5 |
~ |
1.00 MAX |
| SKD1 |
1.90～2.20 |
0.10～0.60 |
0.20～0.60 |
0.030 MAX |
0.030 MAX |
11.0～13.0 |
~ |
0.30 MAX |
| Cr12 |
2.00～2.30 |
0.40 MAX |
0.40 MAX |
0.030 MAX |
0.030 MAX |
11.50～13.00 |
~ |
~ |
| 1.2080/ X210Cr12 |
1.90～2.20 |
0.10～0.40 |
0.15～0.45 |
0.030 MAX |
0.030 MAX |
11.00～12.00 |
~ |
~ |
Izicelo zezinto zensimbi ze-Cr12
Insimbi ye-Cr12 iyinsimbi evamile ye-alloy Tool, i-Cr12 iyinsimbi yaseShayina Cold Work Alloy Tool. I-Cold work Mechanical Properties yayo yinhle kakhulu. Insimbi ye-Cr12 enokumelana ne-abrasion ephezulu, ukuwohloka okuncane komsebenzi obandayo we-die steel, insimbi yensimbi eqinile yomoya, okuqukethwe kwekhabhoni ephakeme njengo-1.5%, okuqukethwe kwe-chromium okuphakeme njengo-11.5%, ubulukhuni bokwelapha ukushisa bungafinyelela ku-60 HRC. Insimbi yesigaba se-Cr12 ingasetshenziselwa:
a) I-silicon die isetshenziselwa kakhulu izimo ezincane ze-loaGBg ezishintshayo zidinga ukumelana nokugqokwa okuphezulu, umdwebo womumo olula kanye nokungasho lutho kuyafa.
b Uhlelo lokukhiqiza isikhunta se-benGBg esidinga ukuguga okuphezulu, ukwakheka okuyinkimbinkimbi kwe-punch, kufa, ukufaka, ukwenza i-punch, lapho kufa kunconywa, ubulukhuni 60 ~ 64HCR.
c) ukwakhiwa komdwebo wokufa ukugqoka okudingekayo, kunconywa ubulukhuni 62 ~ 64HCR.
d) nge-anti-cold aluminium extrusion die punch, kunconywa ubulukhuni obungama-60 ~ 62HCR.
e) kokuqukethwe kwekhabhoni ye-benGBg ka-0.65% kuya ku-0.80% yensimbi yobufakazi be-builGBg, ubulukhuni 60 ~ 62HCR.
f) ingasetshenziselwa ukufa okungenalutho, i-punch, amasondo aginqikayo, ama-shear blades, ukufa kwe-heaGBg ebandayo, isikhunta sobumba.
g) ingasetshenziselwa isikhunta sepulasitiki se-thermoset molGBg.
Ukwakhiwa kwensimbi ye-Cr12
Shisisa kancane uye ku-900~950°C bese ukhuphula izinga lokushisa ngokushesha kakhulu liye ku-1050-1100 °C. Ungafoji ngaphansi kuka-1020°C. Bese upholisa i-Cr12 kancane ngemva kokufoja.
Ukufakwa kwensimbi ye-Cr12
Insimbi yamathuluzi ye-GB Cr12 ilethwa isimo esivamile lapho ifakwa khona futhi iyashintshwa. Uma kudingeka kabusha. Shisisa ku-Cr12 steel 900 °C bese Ucwilisa kahle, bese upholisa esithandweni. Ngemuva kokufakwa kwe-anneal, ukuqina kokulethwa kwe-Cr12 kungu-255HB Max.
Ukunciphisa Ukucindezeleka kwensimbi ye-Cr12
Kunini lapho amathuluzi enziwe ngensimbi yensimbi ye-Cr12 alloy alloy enziwa kakhulu noma agaywe phansi, ukukhululeka kwezinkinga zangaphakathi kuyancomeka ngaphambi kokuqina ukuze kuncishiswe amathuba okuhlanekezela. Ukunciphisa ingcindezi kuyadingeka kakhulu, ukudambisa ingcindezi kufanele kwenziwe ngemuva komshini onzima. Ukunciphisa ukucindezeleka, ukushisa ingxenye ngokucophelela ku-600-650 ° C, vumela isikhathi esihle sokucwiliswa (amahora amabili nge-25mm yesigaba esibusayo). Kuphole esithandweni noma emoyeni. Amathuluzi kufanele aqedwe ngomshini ngaphambi kokuqina.
Ukuqina kwensimbi ye-Cr12
Isimo sokulethwa kwe-GB Cr12 ngokuvamile si-Annealing, ngakho ukuqina kuyadingeka. Shisisa amathuluzi e-Cr12 esithandweni somlilo esilawulwayo, uma ungenaso isithando somlilo esilawulwayo, ukuqiniswa kwephakethe kunconywa kakhulu. Shisisa ngaphambili ithuluzi lensimbi ye-Cr12 ukuya ku-750~800°C, cwilisa isikhathi esanele kuze kudlule ukushisa. Bese kulethwe kufika ku-1000-1040 °C, ukupholisa emoyeni noma ekucimeni kwamafutha.
Ukushisa kwensimbi ye-Cr12
Shisisa i-GB Cr12, Shisisa ngendlela efanayo ezingeni lokushisa elidingekayo okuvumela isikhathi sokucwilisa amahora amabili ngo-25mm wesigaba esibusayo. Khipha esithandweni futhi uvumele ukupholisa emoyeni. Izinga lokushisa elihlukile lizothola ubulukhuni obuhlukile. Ukushisa okujwayelekile kungu-204°C, ngemva kokuqina kokushisa okungu-61HRc Min.
Welding of Cr12 steel impahla
Ngokuvamile, asiyeki i-welGBg yensimbi yensimbi ye-alloy kodwa abasebenzisi ngezinye izikhathi bakhetha ukushisela ukuze bagweme izindleko zokuphinda zisetshenziswe. Kufanele kukhunjulwe ukuthi leli banga liyinsimbi eqinisa umoya futhi ku-welGBg indawo ye-weld ifinyelela izinga lokushisa elingaba ngu-1000°C. Ukuqhekeka kungenzeka ngesikhathi sokupholisa ngaphandle uma kuthathwa izinyathelo ezifanele. Izindlela ezidumile ze-welGBg i-atomic hydrogen ne-argon arc. Sincoma ukuthi uxhumane nomphakeli wakho wezinto ezisetshenziswayo ze-welGBg okufanele akunikeze usizo olugcwele nolwazi ngezinsimbi zamathuluzi e-welGBg alloy.
I-Nitriding yezinto zensimbi ze-Cr12
Insimbi yensimbi ye-Cr12 alloy ingafakwa nitrided ukunikeza ikesi elingaphezulu eliqinile. Ngemuva kokwelashwa kokushisa kwe-nitriGBg, i-Cr12 bese imelana kakhulu nokuguga nokuguguleka. I-NitriGBg inyusa ukumelana nokugqwala.
Ukugaya Okokugcina kwensimbi ye-Cr12
I-GringGBg i-GB Cr12 Steel. Khetha ibanga elilungile lesondo ngokubonisana nomkhiqizi wamasondo e-grinGBg. Qinisekisa ukuthi isondo le-gringGBg lisesimweni esihle ngokusebenzisa ithuluzi elifanele lokugqoka. I-Wet grinGBg inketho ekhethwayo usebenzisa inqwaba yokupholisa. Uma i-gringGBg eyomile kusetshenziswa isondo elithambile kakhulu.
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