Imichiza kunye neMechanical
Ukwakheka kweekhemikhali (wt.%) yebakala le-Cr12: GB/T 1229-2000
| Izinto |
umz. (≥) |
Ubuninzi. (≤) |
| C |
2.00 |
2.30 |
| Si |
- |
0.40 |
| Mnu |
- |
0.40 |
| Cr |
11.50 |
13.00 |
Iimpawu zoomatshini zebakala Cr12 GB/T 1229-2000
Amandla obungqina
Rp0.2 (MPa) |
Tensile strength
Rm (MPa) |
Amandla empembelelo
I-KV (J) |
Ubude ekuqhekekeni
A (%) |
Ukunciphisa icandelo lomnqamlezo kwi-fracture
Z (%) |
Imeko enyangwa ngobushushu |
Ukuqina kweBrinell (HBW) |
| 539 (≥) |
215 (≥) |
42 |
14 |
42 |
Isisombululo kunye nokuguga, ukuHlanganisa, ukuSebenza, i-Q + T, njl |
244 |
GB Cr12 ingxubevange isixhobo intsimbi imathiriyeli elingana -UNS T30403
| IBanga |
C |
Si |
Mnu |
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 |
~ |
~ |
Ukusetyenziswa kwemathiriyeli yentsimbi ye-Cr12
Intsimbi ye-Cr12 sisiXhobo sentsimbi eqhelekileyo, i-Cr12 sisiXhobo saseTshayina seCold Work Alloy Tool. Umsebenzi wayo obandayo weMechanical Properties ulungile kakhulu. Intsimbi ye-Cr12 enokumelana ne-abrasion ephezulu, i-micro deformation yomsebenzi obandayo wentsimbi yokufa, intsimbi yensimbi yomoya enzima, umxholo wekhabhoni ophezulu njenge-1.5%, umxholo we-chromium ophezulu njenge-11.5%, ukuqina konyango lobushushu kunokufikelela kwi-60 HRC. Intsimbi yecandelo le-Cr12 ingasetyenziselwa:
a) I-silicon die isetyenziswa ikakhulu kwiimeko ezincinci ze-loaGBg ezifuna ukumelana nokunxiba okuphezulu, umzobo olula wemilo kunye nokufa okungenanto.
b Inkqubo yokuvelisa i-benGBg molds efuna ukunxiba okuphezulu, imilo eyinkimbinkimbi ye-punch, ifa, ifake, yenza i-punch, xa ukufa kunconywa, ubunzima 60 ~ 64HCR.
c) ukwenza umzobo die die die banxibe efunekayo, kucetyiswa ubunzima 62 ~ 64HCR.
d) kuba anti-aluminiyam extrusion kufa punch, kuyacetyiswa ukuba ubulukhuni 60 ~ 62HCR.
e) kumxholo wekhabhoni ye-benGBg ye-0.65% ukuya kwi-0.80% yobungqina be-builGBg steel, ukuqina kwe-60 ~ 62HCR.
f) ingasetyenziselwa ukufakela into engenanto, ipunch, amavili aqengqelekayo, iibhleyidi zokucheba, ukufa kweheaGBg ebandayo, ukungunda kodongwe.
g) ingasetyenziselwa i-thermoset yeplastiki ye-molGBg molds.
Ukwenziwa kwemathiriyeli yentsimbi ye-Cr12
Preheat kancinane ukuya ku-900~950°C wandule ukwandisa ubushushu ngokukhawuleza ukuya ku-1050-1100 °C. Musa ukugalela ngaphantsi kwe-1020°C. Emva koko pholisa i-Cr12 kancinane emva kokufoja.
Ukufakwa kwesixhobo sentsimbi ye-Cr12
Isixhobo sensimbi se-GB Cr12 sihanjiswa kwimeko yesiqhelo kwi-annealing kunye nomatshini. Ukuba kufuneka kuhlaziywe kwakhona. Fudumeza kwintsimbi ye-Cr12 900 °C kwaye Ufunxe ngokucokisekileyo, emva koko uphole eziko. Emva kokufakwa kwe-anneal, ubunzima bokuhanjiswa kwe-Cr12 yi-255HB Max.
Ukunciphisa uxinzelelo lwemathiriyeli yentsimbi ye-Cr12
Xa kufuneka izixhobo ezenziwe kwi-Cr12 i-alloy tool yentsimbi zenziwe ngoomatshini kakhulu okanye ziphantsi, ukukhululeka koxinzelelo lwangaphakathi kuyacetyiswa ngaphambi kokuqina ukuze kuncitshiswe ukugqwetheka okunokwenzeka. Ukunciphisa uxinzelelo kubaluleke kakhulu, ukunciphisa uxinzelelo kufuneka kwenziwe emva komatshini okhohlakeleyo. Ukunciphisa uxinzelelo, ukushisa icandelo ngokucophelela kwi-600-650 ° C, vumela ixesha elihle lokucwina (iiyure ezimbini kwi-25mm yecandelo elilawulayo). Ukupholisa esithandweni okanye emoyeni. Izixhobo mazigqitywe ngoomatshini phambi kokuba ziqiniswe.
Ukuqina kwemathiriyeli yentsimbi ye-Cr12
I-GB Cr12 Ukuhanjiswa kwemeko idla ngokuba yi-Annealing, ngoko ke ukuqina kuyafuneka. Fudumeza izixhobo ze-Cr12 kwisithando somlilo esilawulwayo, ukuba asikho isithando somlilo esilawulwayo, ukuqiniswa kwepakethi kucetyiswa ngamandla. Pre-heat Cr12 isixhobo intsimbi ukuya 750 ~ 800 ° C, cwilisa ixesha elaneleyo de ubushushu. Emva koko unyuswe ukuya kuthi ga kwi-1000-1040 °C, ukupholisa emoyeni okanye ukucima ioli.
Ukufudumeza kwemathiriyeli yentsimbi ye-Cr12
Fudumeza i-GB Cr12, Fudumeza ngokufanayo kwiqondo lobushushu elifunekayo ukuvumela ixesha lokufunxa iiyure ezimbini nge-25mm yecandelo elilawulayo. Ukuhoxisa kwisithando somlilo kwaye uvumele ukupholisa emoyeni. Ubushushu obahlukeneyo bobushushu bufumana ubulukhuni obahlukileyo. Ubushushu obuqhelekileyo bungama-204°C, emva kokuqina kobushushu 61HRc Min.
Ukuwelda kwemathiriyeli yentsimbi ye-Cr12
Ngokubanzi, asicebisi i-welGBg yensimbi yensimbi ye-alloy kodwa abasebenzisi ngamanye amaxesha bakhetha ukudibanisa ukuze baphephe iindleko zokuphinda zenziwe kwakhona. Kufuneka kukhunjulwe ukuba eli bakala liyintsimbi yokuqinisa umoya kwaye kwi-welGBg indawo ye-weld ifumana ubushushu obumalunga ne-1000 ° C. Ukuqhekeka kunokwenzeka ngexesha lokupholisa ngaphandle kokuba kuthathwe amanyathelo okhuseleko afanelekileyo. Iindlela ezidumileyo ze-welGBg zi-atomic hydrogen kunye ne-argon arc. Sicebisa ukuba uqhagamshelane nomthengisi wakho we-welGBg onokuthi akunike uncedo olupheleleyo nolwazi malunga neentsimbi ze-alloy ze-welGBg.
I-Nitriding yezinto zentsimbi ze-Cr12
Isixhobo sentsimbi ye-Cr12 ye-alloy sinokufakwa nitrided ukunika imeko enzima. Emva konyango lobushushu lwe-nitriGBg, i-Cr12 ke iyaxhathisa kakhulu ukunxiba kunye nokhukuliseko. I-NitriGBg ikwanyusa ukuxhathisa ukubola.
UkuGqiba okuGqibela kwezinto zentsimbi ze-Cr12
GrinGBg iGB Cr12 Steel. Khetha ibakala elichanekileyo levili ngokubonisana nomenzi wevili wegrinGBg. Qinisekisa ukuba ivili legringGBg likwimeko entle ngokusebenzisa isixhobo esifanelekileyo sokunxiba. I-Wet grinGBg yindlela ekhethwayo ekhethwayo usebenzisa unikezelo oluninzi lwesipholisi. Ukuba i-gringGBg eyomileyo ibhengezwa kuyo ke sebenzisa ivili elithambileyo kakhulu.
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