China ASTM A681 D7 Tool Karfe Bar Manufacturer kuma Supplier
D7 Tool Karfe ne babban carbon, high chromium iska hardening kayan aiki karfe da kyau kwarai lalacewa juriya.
Wannan juriya na lalacewa ya samo asali ne saboda yawan carbon da abun ciki na vanadium, waɗanda ke samar da adadi mai yawa na vanadium carbide barbashi a cikin ƙarfe, tare da taurin daidai da kusan 80 zuwa 85 Rockwell C.
Wannan kadarar ta sa D7 kayan aiki karfe tasiri a jure lalacewa a lokacin da a zamiya lamba tare da sauran karafa da a lamba tare da bushe da rigar slurries na wuya abrasive barbashi kamar yashi, harbi ayukan iska mai ƙarfi kafofin watsa labarai da tukwane.
D7 kayan aiki karfe ne yadu amfani, yafi ciki har da bulo mold rufi, briquetting kyawon tsayuwa, harbi ayukan iska mai ƙarfi kayan aikin rufi, yumbu extrusion da kafa kayan aikin, foda compaction kayayyakin aiki, zurfin zane ya mutu, flattening rollers da inji kayan aiki jagora rails, da dai sauransu.
A cikin waɗannan yanayin aikace-aikacen, juriya na lalacewa, tauri da taurin ƙarfe na kayan aikin D7 ana amfani da su gabaɗaya.
Dangane da maganin zafi, tsarin hardening na D7 kayan aiki karfe yana buƙatar matakai kamar preheating, austenitization (high zafin jiki) da zafin jiki.
Yawan zafin jiki na zafin jiki shine 300°F (149°C) don matsakaicin juriyar lalacewa. Har ila yau, don iyakar tauri, ana iya yin fushi sau biyu, riƙe a zafin jiki sama da 950°F (510°C) na sa'o'i biyu sannan a riƙe na tsawon sa'o'i biyu.
A cikin sharuddan yankan workability, da yankan workability na D7 kayan aiki karfe ne game da 30-35% na 1% carbon karfe. Wannan yana nufin cewa ana buƙatar kayan aiki da dabaru masu dacewa yayin aikin injin don tabbatar da ingancin injina da inganci.
Gabaɗaya, D7 kayan aiki karfe ne babban aiki lalacewa-resistant kayan aiki karfe dace da daban-daban aikace-aikace yanayin da bukatar jure lalacewa da kuma tasiri.
Its kyau kwarai lalacewa juriya, taurin da taurin, kazalika da kyau yankan processability, sa shi yadu amfani a masana'antu masana'antu.
D7 kayan aiki karfe ne high quality-carbon, high-chromium gami kayan aiki karfe cewa ya mamaye wani muhimmin matsayi a masana'antu samar domin ta m jiki da kuma sinadaran Properties. Wannan labarin yana nufin daki-daki dalla-dalla na D7 kayan aiki karfe da babban amfani.
Babban fasali na D7 Tool Karfe
Babban taurin da juriya mai ƙarfi: Bayan ingantaccen magani mai zafi, D7 karfe na iya kaiwa ga tsananin ƙarfi, yana ba shi kyakkyawan juriya.
Wannan sifa ta saD7 karfemai kyau a cikin wuraren aiki waɗanda ke ƙarƙashin manyan lodi da gogayya mai sauri.
Juriya na tasiri: Saboda tsananin ƙarfinsa da ƙaƙƙarfan ƙaƙƙarfan ƙarfi, ƙarfe na kayan aiki na D7 yana da juriya mai kyau kuma yana iya kiyaye amincin tsarin lokacin da sojojin waje suka yi tasiri.
Juriya na lalata: D7 kayan aiki karfe ya ƙunshi wani adadin chromium, wanda ya ba shi damar kiyaye kyakkyawan kwanciyar hankali da dorewa a wasu wurare masu lalata.
Menene bambance-bambance tsakanin D7 da D2 kayan aiki karfe?
D7 kayan aiki karfe da D2 kayan aiki karfe (kuma aka sani da Cr12MoV) ne biyu daban-daban kayan aiki steels, kowanne da musamman kaddarorin da aikace-aikace.
D7 Tool Karfe ne babban carbon, high chromium iska hardening kayan aiki karfe da kyau kwarai lalacewa juriya. Babban abun ciki na carbon da vanadium yana haifar da adadi mai yawa na barbashi na carbide vanadium a cikin karfe, tare da taurin daidai da kusan 80 zuwa 85 Rockwell C.
Saboda haka, yadda ya kamata da tsayayya lalacewa lalacewa ta hanyar zamiya lamba tare da sauran karafa da bushe da rigar slurry lamba tare da wuya abrasive barbashi kamar yashi, harbi ayukan iska mai ƙarfi kafofin watsa labarai da tukwane. Wannan ya sa D7 kayan aiki karfe dace da iri-iri na aikace-aikace, ciki har da tubali mold rufi, briquetting mutu, harbi ayukan iska mai ƙarfi kayan aikin rufi, yumbu extrusion da kafa kayan aikin, foda compaction kayayyakin aiki, zurfin zane mutu, flattening rollers da inji kayan aiki jagora dogo.
D2 kayan aiki karfe (Cr12MoV) ne kuma high-carbon, high-chromium kayan aiki karfe da kyau kwarai taurin, sa juriya, lalata juriya da nakasawa juriya. Abubuwan da ke cikin carbon ɗinsa sun kai 1.40% -1.60%, wanda ke inganta taurinsa da juriya.
A lokaci guda kuma, karfe yana da babban chromium da molybdenum abun ciki, wanda zai iya inganta juriya na lalata yadda ya kamata.
D2 kayan aiki karfe iya samun m inji Properties da taurin ta hanyar zafi magani matakai kamar quenching da tempering, kuma yana da kyau machinability saduwa daban-daban machining bukatun. Waɗannan kaddarorin suna yin ƙarfe na kayan aikin D2 da aka yi amfani da su sosai wajen kera manyan sassa irin su ƙura, yankan kayan aikin da ƙirƙira ya mutu.
D7 Tool karfe zagaye mashaya
Haɗin sinadarai (jashi mai yawa)(wt.%) na D7 kayan aikin karfe
| C(％) | Si (％) | Mn (％) | P(％) | S (％) | Cr (％) | Mo (％) | V(%) |
| 2.15 zuwa 2.50 | 0.10 ~ 0.60 | 0.10 ~ 0.60 | ≤0.030 | ≤0.030 | 11.5 zuwa 13.5 | 0.70 ~ 1.20 | 3.80 zuwa 4.40 |
ASTM A681-US
FED QQ-T-570-US
SAE J437-US
SAE J438-US
UNS T30407-US
AISI D7 Karfe-US
Zabin Narkewa daga D7
1 EAF: Tanderun Arc na Lantarki
2 EAF+LF+VD: Mai ladabi-smelting da vacuum degassing
3 EAF + ESR: Mai Rarraba Electro Slag
4 EAF + PESR: yanayi mai karewa Electro Slag Remelting
5 VIM+PESR: Vacuum induction narkewa
Samar da Zabin D7 Karfe
1 tsarin mirgina mai zafi
2 Zafafan ƙirƙira: Electro-hydraulic; High-gudun na'ura mai aiki da karfin ruwa; Oil-hydraulic; Daidaitaccen ƙirƙira
Zaɓin maganin zafi d7 karfe
1 + A: Annealed (cikakken/laushi/spheroidizing)
2 +N: An daidaita
3 +NT: Daidaitacce da fushi
4 + QT: An kashe kuma mai zafi (ruwa / mai)
Zabin Suface na Tool Karfe
1 Baƙar fata
2 Kasa: Mai haske amma m; Ba daidai ba
3 Machining don faranti: Haske da daidaito; Tabon juyi kadan
4 Bare/Juya: Mai haske da daidaito; Tabon juyi kadan
5 Goge: Girman haske da daidaito sosai; Ba juya tabo ba
KAYAN KANikanci NA KAYAN KARFE D7
| yawa Rp0.2 (MPa) | Tashin hankali Rm (MPa) | Tasiri KV/Ku (J) | Tsawaitawa A (%) | Ragewa a ɓangaren giciye akan karaya Z (%) | Halin da ake Maganin Zafi | Brinell hardness (HBW) |
| 984 (≥) | 682 (≥) | 41 | 31 | 23 | Magani da tsufa, Annealing, Ausage, Q+T, da dai sauransu | 322 |
| Kayayyaki | Diamita (mm) | Tsawon (mm) |
| Mirgine Bar | 10-95 | 3000-5700 |
| Jarrabawar Bar | 95-440 | 3000-5700 |
| Billet | 130×130,140×140,150×150,160×160 | 7000 Max |
