Gaz nitriding jarayoni operatsiya of well type annealing furnace

Printsiplar uchun aniqlash the preparat davolash of well type annealing o'choqlari:
1. For general structural steel parts, quenching and tempering treatment should be used. The high-temperature tempering temperature should be 20-40oC higher than the nitriding temperature, and the insulation time should not be too long
2. For components with low impact toughness requirements, normalizing be used, but the cooling speed of normalizing should fast. Components with larger cross-sectional dimensions should not normalized.
3.38CrMoAl steel be quenched and tempered, aksi igna like nitridlar ga moyil bo'lib ko'rinadi nitridda paydo bo'ladi qatlam. Nitridlashdan oldin nitridlash, vosita va qolip temir o tkazi o rilishi kerak quenching va tempering davolash, va annealing ruxsat etilmaydi.
4. Slender, nozik devorli, murakkab, va aniq komponentlar, bir yoki ko'proq stress engillashtiruvchi davolash muolajalari nitridlashdan oldin amalga oshirilishi kerak. The stress relieving harorati dan past bo'ladi quenching va tempering harorati va yuqori nitriding haroratidan yuqori harorat. Agar agar deformatsiya davolanishdan keyingi deformatsiya dan oshsa tola, u bo lishi kerak to g ildi va stress yana ta ta lashdi ga muvofiq dastlabki jarayon to g iladi 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 deformatsiya butunlay malakali
1. Tayyorlash ishi uchun quduq turi annealing o'choq:
1) Nitridlashdan oldin, tekshirish the temperature control instrument, suyuq ammiak bottle, flow metr, ammiak parchalanish analizator , va turli quvur tizimlari uchun ta'minlash uchun normal operatsiya va foydalanish uchun uskunalar. Harorat farq ichida o'choq bo'lishi kerak 10oC dan kam bo'lishi kerak 10oC dan kam bo'lishi kerak
2) Desiccants keng tarqalgan foydalanish kaltsiy oksid, kaltsiy xlorid, etc.%, while kaltsiy oksidi odatda ishlatiladi almashtirish yoki quritish tufayli yo'qotish ta'sir
3) U yaxlit to lik suyuq ammiak bilan a hajm kam 7b0.2% for nitriding media
4) ga ko'ra hangarlar tayyorlang 2c o'lchami, sifati, va mahorat talablari of the components. Oldin foydalanish, ehtiyotkorlik bilan tekshirish agar ular yaxshi holatda bo'lsa yaxshi holatda va toza ularni yaxshilab
2. Tayyorlash komponentlari uchun yaxshi turi annealing pechi
1) Surface roughness Ra1.6 of nitrided parts μ Below m, the surface must not have defects such as burrs or rust. Components that cannot be treated in a timely manner must be protected with oil to prevent rusting.
2) Distortion moyil komponentlar bo'lishi kerak bashorat qilingan va yozib qo'yilishi kerak.
3) Material va oldindan issiqlik bilan ishlov berish namuna ning bir xil qismi 2c va namuna hajmi d1� ({{1} }) mm x ({6-10}) mm, 3-5 namunalari, raqamlangan va joylashtirilgan vakil lavozimlari
4) Toza the komponentlari ehtiyotkorlik bilan, va ularni ko'tarishda ularni o'choq ichiga silash ularni toza benzin bilan tozalash uchun erishish uchun tozalash uchun tozalash uchun 1 komponentlar
5) Tozalangan komponentlarni ichiga qo'ying quduq turi annealing pechka. For slender rodlar bo'lgan ga moyil deformatsiya, ular bo'lishi kerak bo'lishi kerak vertikal bilan vertikal osilgan bilan hatto bo'shliq, va egzoz teshik teshiklari to'sib qo'yilmasligi kerak bo'lishi kerak bloklangan bo'lishi kerak. Komponentlar kerak oraliq dan oshmasligi kerak oralig'i the samarali isitish zonasi