(1)Yuvish: Issiqlikdagi issiqlik pechida metallning tanqidiy haroratidan yuqori bo'lib, uning mikroekteti fazani o'zgartirish yoki qisman fazani o'zgartirishdan o'tadi.Masalan, po'lat ushbu haroratga qizdirilganda, pirarit tinchlikka aylanadi.Keyin uni vaqt davomida iliq saqlang, shunda u xona haroratida chiqarilguncha (odatda o'choqni sovutish bilan).Ushbu jarayonni davolash deb ataladi.Erishish maqsadi issiq ishlash paytida hosil bo'lgan ichki stressni olib tashlash, metall mikroektoni (taxminan, taxminan qattiqlik, tsiflika va kuchni oshirish kabi) mexanik xususiyatlarini yaxshilash va kesishni yaxshilash. ishlash.
(2): Issiqlikdagi issiqlik pechida mikroektemasi mutlaqo bir xil kasalliklarga mutlaqo o'zgarib turadi (masalan, ushbu haroratda, ferrit butunlay o'zgarishi uchun). po'latdagi Ostenitga yoki ikkilamchi tmementite anestenitda butunlay erigan), so'ngra u tabiiy sovutish uchun havoga joylashtiriladi Tinch havoda sovutish) va butun jarayon normallantirish deb nomlanadi.Normallashtirish - bu yumshatilishdan ko'ra tezroq sovutish darajasi tufayli eng nozik dona va bir xil mikroektemani, metallning kuchini va qattiqligini yaxshilashi va yaxshi mexanik xususiyatlarga ega bo'lishi mumkin.
After holding it for a period of time, it is quickly cooled (cooling medium includes water, oil, salt water, alkaline water, etc.) to obtain martensitic structure, which can significantly improve the strength, hardness, and wear resistance of the metal .
(4) Surface quenching: This is a special method of quenching treatment that utilizes various heating methods such as flame heating, high-frequency induction heating, power frequency induction heating, electric contact heating, electrolyte heating, etc. to quickly heat the surface of Tanqidiy haroratdan yuqori metall, issiqlik metall ichki qismiga kirishi (ya'ni qon ketishi)
Xabar vaqti: 2023-yil 08-oktabr