AISI 4140 Karfe 1.7225 42CrMo4 SCM440

AISI 4140 Alloy Karfe  karfe ne na chromium-molybdenum na kowa wanda yawanci ana amfani dashi bayan an kashe shi da zafin rai, tare da babban ƙarfi, ƙarfin ƙarfi. Har ila yau, farantin alloy 4140 yana da ƙarfin gajiya mai ƙarfi da ƙarancin ƙarancin zafi mai ƙarfi.

Gnee yana da fa'ida sosai akan farantin karfe 4140:

• 1500+ tons yau da kullun na 4140 alloy farantin ko mashaya lebur.
• Hot rolled / annealed / Q+T (PH prehardened) yanayin akwai.
• Kauri 4-300mm yana samuwa don jigilar kwanaki 1-3.
• Kauri 1-10mm sanyi birgima takardar don kwanaki 30 gubar lokaci.
• Yanke zuwa faɗi & yanke zuwa tsayin sabis akwai.
• Machined zuwa haƙuri & roughness guda sabis akwai.

Lokacin tattaunawa game da AISI 4140, yana da mahimmanci a fahimci abin da lambar daraja ke nufi:

AISI 4140 ana yin ta ne ta hanyar sanya ƙarfe, carbon, da sauran abubuwa masu haɗawa cikin tanderun lantarki ko tanderun oxygen. Manyan abubuwan da aka haɗa zuwa AISI 4140 sune:

• Chromium
• Manganese
• Molybdenum

Da zarar an haɗa baƙin ƙarfe, carbon, da sauran abubuwan haɗin gwiwa tare a cikin sigar ruwa, ana barin shi ya yi sanyi. Ana iya goge karfen; mai yiwuwa sau da yawa.

Bayan an gama shafewa, za a sake mai zafi da narkakkar karfen ta yadda za a iya zuba shi a cikin nau'in da ake so kuma ana iya yin aiki mai zafi ko sanyi ta hanyar rollers ko wasu kayan aiki don isa kauri da ake so. Tabbas, akwai wasu ayyuka na musamman waɗanda za a iya ƙarawa a cikin wannan don rage sikelin niƙa ko haɓaka kayan aikin injiniya.

AISI 4140 ƙaramin ƙarfe ne. Ƙananan karafa sun dogara da wasu abubuwa banda ƙarfe da carbon kawai don haɓaka kayan aikin injin su. A cikin AISI 4140, ana amfani da ƙarin chromium, molybdenum, da manganese don ƙara ƙarfi da ƙarfin ƙarfe. Ƙarin chromium da molybdenum shine dalilin da ya sa AISI 4140 ake daukarsa a matsayin "chromoly" karfe.

Akwai mahimman kaddarorin injiniya da yawa na AISI 4140, gami da:

• Ƙarfin Ƙarfin Ƙarfi: AISI 4140 karfe yawanci yana da maƙasudin ƙarfi na ƙarshe na kusan 95,000 psi.
• Tauri
• Halittu
• Tauri

Teburin da ke ƙasa yana ba da haske game da sinadarai na AISI 4140:

Ƙarin chromium da molybdenum yana inganta juriya na lalata. Molybdenum na iya zama da amfani musamman lokacin ƙoƙarin tsayayya da lalata saboda chlorides. Ana amfani da manganese a cikin AISI 4140 don ƙara ƙarfin ƙarfi kuma azaman deoxidizer. A cikin ƙarfe na ƙarfe, manganese kuma na iya haɗuwa tare da sulfur don haɓaka injina da kuma sa tsarin carburizing ya fi tasiri.