Lik'hemik'hale le Mechini
Motsoako oa lik'hemik'hale(wt.%) oa sehlopha sa Cr12: GB/T 1229-2000
| Lintlha |
Min. (≥) |
Max. (≤) |
| C |
2.00 |
2.30 |
| Si |
- |
0.40 |
| Mong |
- |
0.40 |
| Kr |
11.50 |
13.00 |
Thepa ea mechine ea sehlopha sa Cr12 GB/T 1229-2000
Matla a bopaki
Rp0.2 (MPa) |
Matla a tšepe
Rm (MPa) |
Matla a amang
KV (J) |
Elongation nakong ea ho robeha
A (%) |
Ho fokotseha ha karolo ea sefapano ho robeha
Z (%) |
Boemo ba ho Tšoaroa ke Mocheso |
Brinell hardness (HBW) |
| 539 (≥) |
215 (≥) |
42 |
14 |
42 |
Tharollo le botsofali, Annealing, Ausaging, Q+T, joalo-joalo |
244 |
GB Cr12 alloy tool steel e lekanang le -UNS T30403
| Kereiti |
C |
Si |
Mong |
P |
S |
Kr |
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 |
~ |
~ |
Lisebelisoa tsa lisebelisoa tsa tšepe tsa Cr12
Cr12 tšepe ke tšepe e tloaelehileng ea alloy Tool, Cr12 ke tšepe ea China Cold Work Alloy Tool. Cold work Mechanical Properties e ntle haholo. Cr12 tšepe e nang le khanyetso e phahameng ea abrasion, micro deformation ea mosebetsi o batang oa tšepe ea tšepe, tšepe e thata ea moea, lisebelisoa tsa k'habone tse phahameng joalo ka 1.5%, dikahare tsa chromium tse phahameng joalo ka 11.5%, boima ba kalafo ea mocheso bo ka fihla ho 60 HRC. Karolo ea tšepe ea Cr12 e ka sebelisoa ho:
a) silicon die e sebelisoa haholo bakeng sa maemo a manyane a dynamic loaGBg a hloka khanyetso e phahameng ea ho roala, ho taka sebopeho se bonolo le ho hloka letho.
b Sistimi ea ho etsa liforomo tsa benGBg tse hlokang ho roala holimo, sebopeho se rarahaneng sa punch, shoa, ho kenya, ho etsa punch, ha lefu le buelloa, boima ba 60 ~ 64HCR.
c) bakeng sa ho etsa setšoantšo se hlokahalang, ho kgothaletswa hore o be thata 62 ~ 64HCR.
d) bakeng sa anti-cold aluminium extrusion die punch, ho kgothaletswa ho thatafala 60 ~ 62HCR.
e) bakeng sa benGBg carbon content ea 0,65% ho 0.80% bopaki builGBg tšepe, thata 60 ~ 62HCR.
f) e ka sebelisoa bakeng sa ho koala sekheo, punch, mabili a bilikang, li-shear blades, serame sa heaGBg die, hlobo ea letsopa.
g) e ka sebelisoa bakeng sa hlobo ea polasetiki ea thermoset molGBg.
Ho theha thepa ea tšepe ea Cr12
Preheat butle ho 900 ~ 950 ° C ebe o eketsa mocheso ka potlako ho 1050-1100 °C. U se ke ua thetsa ka tlase ho 1020 ° C. Ebe u pholisa Cr12 butle ka mor'a ho qhekella.
Ho kenngoa ha thepa ea tšepe ea Cr12
GB Cr12 sesebelisoa tšepe e tlisoa boemo bo tloaelehileng ha annealing le mochine. Haeba ho hlokahala ho nchafatsoa hape. Chesa ho Cr12 steel 900 °C 'me U ina ka botlalo, ebe u pholile ka seboping. Kamora ho ts'oaroa, boima ba ho fana ka Cr12 ke 255HB Max.
Ho fokotsa khatello ea maikutlo ka thepa ea tšepe ea Cr12
Lisebelisoa tse entsoeng ka tšepe ea Cr12 alloy tool li tlameha ho etsoa ka mochini o matla kapa li fatše, ho bohlokoa hore ho fokotsoe mathata a ka hare pele ho thatafala ho fokotsa monyetla oa ho sotha. Ho fokotsa khatello ea maikutlo hoa hlokahala, ho fokotsa khatello ea kelello ho lokela ho etsoa ka mor'a ho sebetsa ka thata. Ho imeloa kelellong ho imolla, futhumatsa karolo ka hloko ho 600-650 ° C, lumella nako e ntle ea ho noa (lihora tse peli ka 25mm ea karolo e busang). Pholisa ka seboping kapa moeeng. Lisebelisoa li phethoe ka mochine pele li thatafala.
Ho thatafala ha thepa ea tšepe ea Cr12
GB Cr12 boemo ba thomello hangata ke Annealing, kahoo ho thatafatsa ho hlokahala. Chesa lisebelisoa tsa Cr12 ka seboping se laoloang sa sepakapaka, haeba se se na sebōpi se laoloang, ho khothaletsoa ho thatafatsa pakete ka matla. Pre-heat Cr12 tool steel ho 750 ~ 800 ° C, inela nako e lekaneng ho fihlela mocheso o feta. Ebe e tlisoa ho 1000-1040 °C, ho pholile moeeng kapa ho tima oli.
Ho futhumatsa thepa ea tšepe ea Cr12
Chesa GB Cr12, futhumatsa ka mokhoa o ts'oanang ho mocheso o hlokahalang ho lumella nako ea ho koloba ea lihora tse peli ho 25mm ea karolo e busang. Tloha sebōping 'me u lumelle ho pholile moeeng. Mocheso o fapaneng oa mocheso o tla fumana boima bo fapaneng. Ho futhumatsa ho tloaelehileng ke 204 ° C, ka mor'a ho halefisa ho thatafala 61HRc Min.
Welding ea thepa ea tšepe ea Cr12
Ka kakaretso, ha re eletse welGBg ea tšepe ea tšepe ea alloy, empa ka linako tse ling basebelisi ba khetha ho tjheseletsa e le ho qoba litšenyehelo tsa ho nchafatsa lisebelisoa. Ho lokela ho hopoloa hore sehlopha sena ke tšepe e thatafatsang moea le hore ho welGBg sebaka sa weld se fumana mocheso o ka bang 1000 ° C. Ho petsoha ho ka etsahala nakong ea ho pholile ntle le haeba ho nkoa mehato e nepahetseng. Mekhoa e tsebahalang ea welGBg ke atomic hydrogen le argon arc. Re khothaletsa hore o ikopanye le morekisi oa hau oa lisebelisoa tsa welGBg ea tla u fa thuso e felletseng le leseli mabapi le litšepe tsa lisebelisoa tsa welGBg.
Nitriding ea lisebelisoa tsa tšepe tsa Cr12
Cr12 alloy tool steel e ka ba nitrided ho fana ka nyeoe e thata ea holim'a metsi. Kamora kalafo ea mocheso oa nitriGBg, Cr12 e hanana haholo le ho roala le ho khoholeha. NitriGBg e boetse e eketsa khanyetso ho kutu.
Ho Qetela ho Sila ha thepa ea tšepe ea Cr12
GrinGBg the GB Cr12 Steel. Khetha sehlopha se nepahetseng sa lebili ka ho buisana le moetsi oa mabili a grinGBg. Netefatsa hore lebili la gringGBg le maemong a matle ka ho sebelisa sesebelisoa se loketseng sa ho roala. Wet grinGBg ke khetho e ntle ka ho fetisisa ho sebelisa phepelo e ngata ea sepholisa. Haeba gringGBg e omileng e sebelisoa joale sebelisa lebili le bonolo haholo.
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