a) Mutuwar silicon galibi ana amfani dashi don ƙananan yanayin loaGBg mai ƙarfi yana buƙatar juriya mai ƙarfi, zane mai sauƙi da mutuƙar ɓarna.
b Tsarin don kera benGBg gyare-gyaren da ke buƙatar babban lalacewa, hadadden siffar naushi, mutu, sakawa, yin naushi, lokacin da aka ba da shawarar mutu, taurin 60 ~ 64HCR.
c) don yin zanen mutuƙar lalacewa da ake buƙata, ana ba da shawarar taurin 62 ~ 64HCR.
d) don anti-sanyi aluminum extrusion mutu naushi, an bada shawarar taurin 60 ~ 62HCR.
e) don benGBg carbon abun ciki na 0.65% zuwa 0.80% hujja builGBg karfe, taurin 60 ~ 62HCR.
f) ana iya amfani da shi don mutuƙar ɓarna, naushi, mirgina ƙafafu, ruwan wuƙaƙƙiya, mutuƙar sanyiGBg, yumbu mai yumbu.
g) za a iya amfani da thermoset roba molGBg molds.
| Abubuwa | Min (≥) | Max. (≤) |
|---|---|---|
| C | 2.00 | 2.30 |
| Si | - | 0.40 |
| Mn | - | 0.40 |
| Cr | 11.50 | 13.00 |
| Tabbatar da ƙarfi Rp0.2 (MPa) |
Ƙarfin ƙarfi Rm (MPa) |
Tasirin kuzari KV (J) |
Tsawaitawa a karaya A (%) |
Rage sashin giciye akan karaya Z (%) |
Halin da ake Maganin Zafi | Brinell hardness (HBW) |
|---|---|---|---|---|---|---|
| 539 (≥) | 215 (≥) | 42 | 14 | 42 | Magani da tsufa, Annealing, Ausage, Q+T, da dai sauransu | 244 |
| Daraja | C | Si | Mn | 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 | ~ | ~ |
Cr12 karfe ne na al'ada gami kayan aiki karfe, Cr12 ne na kasar Sin Cold Work Alloy Tool Tool Karfe. Kayan aikin sa na sanyi yana da kyau sosai. Cr12 karfe da high abrasion juriya, micro nakasawa na sanyi aikin mutu karfe, da iska wuya kayan aiki karfe, carbon abun ciki har zuwa 1.5%, chromium abun ciki kamar yadda high as 11.5%, zafi magani taurin iya isa 60 HRC. Ana iya amfani da sashin karfe na Cr12 don:
a) Mutuwar silicon galibi ana amfani dashi don ƙananan yanayin loaGBg mai ƙarfi yana buƙatar juriya mai ƙarfi, zane mai sauƙi da mutuƙar ɓarna.
b Tsarin don kera benGBg gyare-gyaren da ke buƙatar babban lalacewa, hadadden siffar naushi, mutu, sakawa, yin naushi, lokacin da aka ba da shawarar mutu, taurin 60 ~ 64HCR.
c) don yin zanen mutuƙar lalacewa da ake buƙata, ana ba da shawarar taurin 62 ~ 64HCR.
d) don anti-sanyi aluminum extrusion mutu naushi, an bada shawarar taurin 60 ~ 62HCR.
e) don benGBg carbon abun ciki na 0.65% zuwa 0.80% hujja builGBg karfe, taurin 60 ~ 62HCR.
f) ana iya amfani da shi don mutuƙar ɓarna, naushi, mirgina ƙafafu, ruwan wuƙaƙƙiya, mutuƙar sanyiGBg, yumbu mai yumbu.
g) za a iya amfani da thermoset roba molGBg molds.
Yi zafi a hankali zuwa 900 ~ 950 ° C sannan ƙara yawan zafin jiki da sauri zuwa 1050-1100 ° C. Kada ku yi sanyi a ƙasa da 1020 ° C. Sa'an nan kuma kwantar da Cr12 a hankali bayan yin ƙirƙira.
GB Cr12 kayan aiki karfe ana isar da yanayi na yau da kullun a annealing da na'ura. Idan bukatar sake sabuntawa. Yi zafi zuwa karfe Cr12 900 ° C kuma jiƙa sosai, sannan kwantar da shi a cikin tanderun. Bayan annealing, taurin isar da Cr12 shine 255HB Max.
Lokacin da dole ne kayan aikin da aka yi daga Cr12 alloy Tool karfe suna da injina da yawa ko ƙasa, ana ba da taimako na matsalolin ciki kafin taurin kai don rage yiwuwar murdiya. Rage damuwa yana da matukar mahimmanci, ya kamata a yi tausasawa bayan yin aiki mai tsanani. Don damuwa da damuwa, zafi bangaren a hankali zuwa 600-650 ° C, ba da izinin lokaci mai kyau (sa'o'i biyu a kowace 25mm na sashin mulki). Cool a cikin tanderu ko cikin iska. Za a gama aikin injin kafin taurin.
GB Cr12 Yanayin isarwa yawanci shine Annealing, don haka taurin ya zama dole. Yi zafi kayan aikin Cr12 a cikin tanderun yanayi mai sarrafawa, idan ba su da tanderun da aka sarrafa ba, ana ba da shawarar tauri mai ƙarfi. Pre-zafi Cr12 kayan aiki karfe zuwa 750 ~ 800C, jiƙa isasshen lokaci har sai zafi ta hanyar. Sa'an nan kuma kawo har zuwa 1000-1040 ° C, sanyaya a cikin iska ko mai quenching.
Yi zafi da GB Cr12, Yi zafi iri ɗaya zuwa zafin da ake buƙata yana ba da damar lokacin jiƙa na sa'o'i biyu a cikin 25mm na sashin mulki. Janye daga tanderun kuma ba da damar yin sanyi a cikin iska. Yanayin zafin jiki daban-daban zai sami taurin daban-daban. Yawan zafin jiki shine 204 ° C, bayan zafin zafin jiki 61HRc Min.
Gabaɗaya, ba ma ba da shawara ga welGBg na kayan aikin alloy ɗin ƙarfe ba amma masu amfani wani lokacin sun fi son walda don guje wa farashin sake sarrafa kayan aiki. Ya kamata a tuna cewa wannan matakin karfe ne mai taurin iska kuma a cikin welGBg yankin walda yana kaiwa zazzabi na kusan 1000 ° C. Ana iya samun fashewa yayin sanyaya sai dai idan ba a ɗauki matakan da suka dace ba. Shahararrun hanyoyin welGBg sune hydrogen atomic da argon arc. Muna ba da shawarar ku tuntuɓi mai siyar da kayan masarufi na welGBg wanda ya kamata ya ba ku cikakken taimako da bayani kan welGBg gami da karafa.
Cr12 alloy kayan aiki karfe za a iya nitrided don ba da wani akwati mai wuya. Bayan maganin zafi na nitriGBg, Cr12 yana da juriya ga lalacewa da zaizayewa. NitriGBg kuma yana ƙara juriya ga lalata.
GringGBg da GB Cr12 Karfe. Zaɓi madaidaicin matakin dabaran a cikin shawarwari tare da masana'anta na gringGBg. Tabbatar cewa ƙafafun grinGBg yana cikin yanayi mai kyau ta hanyar kayan aikin sutura masu dacewa. Wet gringGBg zaɓi ne da aka fi so ta amfani da tarin kayan sanyaya. Idan busassun grinGBg ya koma to yi amfani da dabaran mai laushi sosai.
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