- 11
- Dec
Muffle pechini qanday qilib to’g’ri sotib olish mumkin?
Muffle pechini qanday qilib to’g’ri sotib olish mumkin?
Elementlarni tanlash
1. Harorat Haqiqiy foydalanish haroratiga ko’ra, mufel pechining eng yuqori haroratini tanlang. Odatda, foydalanish paytida muffle pechining maksimal harorati ish haroratidan 100 ~ 200 ℃ yuqori bo’lishi kerak.
2. Furnace size
Olovga qo’yiladigan namunaning og’irligi va hajmiga qarab mos keladigan o’choq hajmini tanlang. Odatda, o’choq hajmi namunaning umumiy hajmidan 3 baravar ko’p bo’lishi kerak.
3. Olovli material
Furnace materials are roughly divided into two types: fiber materials and refractory brick materials;
Fiber characteristics: light weight, soft texture, good heat preservation;
The characteristics of refractory bricks: heavy weight, hard texture, general heat preservation.
4. Quvvat manbai kuchlanishi
Ishlatishdan oldin, noto’g’ri o’chirmaslik uchun muffle o’chog’ining ish kuchlanishi 380V yoki 220V ekanligini aniqlash kerak.
5. Isitish elementi
Olovli namunalarning turli talablariga ko’ra, har xil isitish elementlari asosan qanday o’choq korpusini tanlashni aniqlash uchun ishlatiladi. Odatda, qarshilik simlari 1200 ℃ dan pastda ishlatiladi, silikon karbid tayog’i asosan 1300 ~ 1400 ℃ uchun ishlatiladi va silikon molibden tayog’i asosan 1400 ~ 1700 ℃ uchun ishlatiladi.