AISI 4140 1.7225 42CrMo4 SCM440 B7 Zitsulo zachitsulo
Kufotokozera Kwachidule:
AISI SAE 4140 alloy steel ndi chromium molybdenum alloy steel specification omwe amagwiritsidwa ntchito kwambiri popanga zitsulo zazikulu zamakomedwe azinthu, monga ma axles, shafts, bolts, magiya ndi ntchito zina.
Mipiringidzo ya Zitsulo za Carbon:
AISI 4140, 1.7225 (42CrMo4), SCM440, ndi B7 Steel Bar ndi mayina osiyanasiyana amtundu womwewo wachitsulo cha alloy.Amadziwika ndi mphamvu zambiri komanso kulimba mtima, komwe amagwiritsidwa ntchito kwambiri ngati magiya ndi mabawuti.AISI 4140 ndi dzina la ku America, 1.7225 ndi muyezo wa European EN, SCM440 ndi dzina la Japan JIS, ndipo B7 imatanthawuza msonkhano wamakalasi a ASTM A193.Matchulidwewa akuyimira chitsulo cha chromium-molybdenum alloy chokhala ndi zinthu zofanana, ndipo kusankha kungadalire kumadera kapena mafakitale.
Zambiri za 4140 1.7225 42CrMo4 SCM440 B7:
| Gulu | 4140 1.7225 42CrMo4 SCM440 B7 |
| Standard | ASTM A29,ASTM A193 |
| Pamwamba | Wakuda, Wopanga Makina, Wotembenuka |
| Diameter Range | 1.0 ~ 300.0mm |
| Utali | 1 mpaka 6 mita |
| Kukonza | Cold Drawn & Pulished Cold Drawn, Centerless Ground & Pulitsidwa |
| Zofunika Kwambiri | POSCO, Baosteel, TISCO, Saky Steel, Outokumpu |
Mawonekedwe & Ubwino:
•Kulimba Kwambiri: Mipiringidzo yachitsulo iyi imawonetsa kulimba kwamphamvu kwambiri, kuwapangitsa kukhala oyenera kugwiritsa ntchito pomwe mphamvu ndi kulimba ndizofunikira.
•Kulimba: Amapereka kulimba kwabwino komanso kukana mphamvu, kuwapangitsa kukhala okhoza kupirira katundu wolemetsa komanso kupsinjika kwamphamvu.
•Zosiyanasiyana: AISI 4140, 1.7225, 42CrMo4, SCM440, ndi B7 ndi ma aloyi osunthika oyenera kugwiritsa ntchito zosiyanasiyana, kuphatikiza magiya, mabawuti, shafts, ndi zida zamapangidwe.
•Valani Kukaniza: Zinthu zophatikizika, monga chromium ndi molybdenum, zimathandizira kuti musavalidwe bwino, zomwe zimapangitsa kuti zitsulo izi zikhale zoyenera kugwiritsa ntchito potengera zovuta.
•Kuthekera: Zitsulo izi zimakhala ndi makina abwino zikatenthedwa bwino, zomwe zimapangitsa kuti makina azigwira bwino ntchito popanga.
•Weldability: Atha kuwotcherera, ngakhale kutentha ndi kutentha pambuyo pa weld kumatha kufunikira kuti mukhalebe ndi zomwe mukufuna ndikupewa zovuta monga brittleness.
Chemical Composition:
| Gulu | C | Mn | P | S | Si | Cr | Mo |
| 4140 | 0.38-0.43 | 0.75-1.0 | 0.035 | 0.040 | 0.15-0.35 | 0.8-1.10 | 0.15-0.25 |
| 42CrMo4/ 1.7225 | 0.38-0.45 | 0.6-0.90 | 0.035 | 0.035 | 0.40 | 0.9-1.20 | 0.15-0.30 |
| Chithunzi cha SCM440 | 0.38-0.43 | 0.60-0.85 | 0.03 | 0.030 | 0.15-0.35 | 0.9-1.20 | 0.15-0.30 |
| B7 | 0.37-0.49 | 0.65-1.10 | 0.035 | 0.040 | 0.15-0.35 | 0.75-1.20 | 0.15-0.25 |
Mechanical properties:
| Gulu | Mphamvu Yamphamvu [MPa] | Yiled Strengtu [MPa] | Elongation % |
| 4140 | 655 | 415 | 25.7 |
| 1.7225/42CrMo4 | 1080 | 930 | 12 |
| Chithunzi cha SCM440 | 1080 | 930 | 17 |
| B7 | 125 | 105 | 16 |
FAQ Guide:
Chifukwa Chiyani Mutisankhe?
•Mutha kupeza zinthu zabwino kwambiri malinga ndi zomwe mukufuna pamtengo wotsika kwambiri.
•Timaperekanso Reworks, FOB, CFR, CIF, ndi mitengo yoperekera khomo ndi khomo.Tikukulangizani kuti mugwiritse ntchito zotumiza zomwe zingakhale zotsika mtengo.
•Zipangizo zomwe timapereka ndizotsimikizika kotheratu, kuyambira pa satifiketi yoyeserera ya zinthu zosaphika mpaka pachiwonetsero chomaliza. (Malipoti awonetsedwa pakufunika)
•Timatsimikizira kuti tipereka yankho mkati mwa 24hours (nthawi zambiri mu ola lomwelo)
•Perekani lipoti la SGS TUV.
•Ndife odzipereka kwathunthu kwa makasitomala athu.Ngati sizingatheke kukwaniritsa zomwe mukufuna mutapenda zonse zomwe mungasankhe, sitidzakusocheretsani popanga malonjezo abodza omwe angapangitse ubale wabwino ndi makasitomala.
•Perekani ntchito yoyimitsa kamodzi.
4140 vs 42CRMO4 - Kusiyana kwake ndi chiyani?
AISI 4140 ndi 42CrMo4 kwenikweni ndi mtundu womwewo wa chitsulo, ndi AISI 4140 kukhala dzina la America ndi 42CrMo4 kukhala dzina la ku Europe.Amagawana zopanga zamakemikolo zofanana, kulimba kwambiri, komanso kulimba, zomwe zimawapangitsa kukhala oyenera kugwiritsa ntchito ngati magiya ndi mabawuti.Ngakhale kutchulidwa kosiyana ndi miyezo yachigawo, nthawi zambiri amaonedwa kuti ndi osinthika chifukwa cha katundu wofanana.
Kodi chitsulo 42CrMo4 ndi chiyani?
42CrMo4 ndi chitsulo cha chromium-molybdenum alloy chopangidwa ndi European standard EN 10083. Imadziwika chifukwa cha mphamvu zake zapamwamba, zolimba, komanso kuuma bwino.Ndi mpweya wa 0.38% mpaka 0.45%, umagwiritsidwa ntchito nthawi zambiri pamapulogalamu omwe amafunikira zida zolimba, monga magiya, ma crankshafts, ndi ndodo zolumikizira m'mafakitale monga zamagalimoto ndi zakuthambo.Chitsulocho chimayankhidwa bwino ndi chithandizo cha kutentha, kupereka mphamvu yosinthira makina, ndipo amaonedwa kuti ndi ofanana ndi mayiko ena monga AISI 4140 ndi SCM440.
Kodi kalasi B7 zitsulo ndi chiyani?
Gulu la B7 ndizomwe zili mkati mwa muyezo wa ASTM A193, womwe umakwirira zida zomangira zamphamvu kwambiri kuti zigwiritsidwe ntchito potentha kwambiri kapena kupanikizika kwambiri.ASTM A193 ndi muyezo wopangidwa ndi ASTM International (omwe kale ankadziwika kuti American Society for Testing and Materials) ndipo amagwiritsidwa ntchito kwambiri m'mafakitale opangira mafuta ndi gasi, petrochemical, ndi magetsi. zomwe zimazimitsidwa ndi kutenthedwa (kutenthedwa kutentha) kuti zikwaniritse zofunikira zamakina.Ndikofunikira kuzindikira kuti zitsulo za Gulu B7 zimagwiritsidwa ntchito nthawi zambiri pamodzi ndi mtedza wa Grade 2H kuti zitsimikizire kuti zimagwirizana ndi ntchito zomwe zimafuna.Zikanenedwa, zida ziyenera kukwaniritsa zofunikira zomwe zafotokozedwa mumiyezo ya ASTM A193 ndi A194 kuti zitsimikizire mphamvu yoyenera, ductility, ndi makina ena.
Makasitomala Athu
Ndemanga Zochokera kwa Makasitomala Athu
AISI 4140, 1.7225, 42CrMo4, SCM440, ndi B7 zitsulo mipiringidzo amayankha bwino kutentha kutentha, kulola kusintha kwa makina katundu monga kuuma ndi toughness.These zitsulo mipiringidzo amasonyeza mkulu kumakoka mphamvu, kuwapanga kukhala oyenera ntchito pamene mphamvu ndi yovuta kwambiri. factor.Amapereka kulimba kwabwino komanso kukana mphamvu, kuwapangitsa kukhala okhoza kupirira katundu wolemetsa komanso kupsinjika kwamphamvu.Mipiringidzo yazitsulo imakhala yosunthika ndipo imapezeka m'mafakitale osiyanasiyana, kuphatikizapo magalimoto, malo opangira ndege, zomangamanga, ndi kupanga. ndi molybdenum, zimathandiza kuti avale kukana bwino, kupanga mipiringidzo zitsulo izi zoyenera ntchito pansi abrasive mikhalidwe.
Kulongedza:
1. Kulongedza ndi kofunika kwambiri makamaka pankhani ya katundu wapadziko lonse lapansi momwe katundu amadutsa munjira zosiyanasiyana kuti akafike komwe akupita, kotero timayika chidwi chapadera chokhudza kulongedza.
2. Saky Steel's amanyamula katundu wathu m'njira zambiri kutengera zomwe timapanga.Timanyamula katundu wathu m'njira zingapo, monga,
