Induksion pechning asosiy tasnifi

Induction furnaces can be divided into high frequency furnaces, intermediate frequency furnaces and industrial frequency furnaces according to the power frequency; according to the process purpose, they can be divided into melting furnaces, heating furnaces, heat treatment equipment and welding equipment; according to their structure, transmission mode, etc. sort. Commonly used induction furnaces are habitually grouped into hearted induction melting furnaces, induction melting furnaces, vacuum induction melting furnaces, induction hardening equipment and induction head thermal equipment, etc. The name of the smelting furnace is relative to the induction smelting furnace. The molten metal is contained in a crucible, so it is also called a crucible furnace. This type of furnace is mainly used for smelting and heat preservation of special steel, cast iron, non-ferrous metals and their alloys. The coreless furnace has many advantages such as high melting temperature, less impurity pollution, uniform alloy composition, and good working conditions. Compared with the cored furnace, the coreless furnace is easier to start and change the metal varieties, and it is more flexible to use, but its electric and thermal efficiency is far lower than that of the cored furnace. Due to the low surface temperature of the coreless furnace, it is not conducive to smelting that requires high-temperature slagging processes.

Eritma pechi yuqori chastotali, oraliq chastotali va quvvat chastotasiga bo’linadi.

(1) Yuqori chastotali eritish pechi

Yuqori chastotali pechning quvvati odatda 50 kg dan past bo’lib, laboratoriyalarda va kichik ishlab chiqarishda maxsus po’lat va maxsus qotishmalarni eritish uchun javob beradi.

(2) Oraliq chastotali erituvchi pech

Oraliq chastotali eritish pechining quvvati va quvvati yuqori chastotali pechdan kattaroqdir. Asosan maxsus po’latlarni, magnit qotishmalarni va mis qotishmalarini eritish uchun ishlatiladi. Bunday o’choq qimmat chastotali konvertatsiya uskunasini talab qilganligi sababli, u ba’zi katta quvvatli holatlarda quvvat chastotasi yadrosiz pechga o’tkazildi. Biroq, sanoat chastotali pech bilan solishtirganda, oraliq chastotali pech ham o’ziga xos xususiyatlarga ega. Misol uchun, bir xil quvvatdagi pech uchun oraliq chastotali pechning kirish quvvati sanoat chastotali pechdan kattaroqdir, shuning uchun erish tezligi tezroq bo’ladi. Sovuq pech eriy boshlaganda, oraliq chastotali pechka o’choq blokini ko’tarishga hojat yo’q. Eritilgan metallni to’kib tashlash mumkin, shuning uchun foydalanish ko’proq Quvvat chastotasi o’chog’i moslashuvchan va qulay; bundan tashqari, oraliq chastotali eritish o’choqidagi eritma o’choq qoplamasi uchun foydali bo’lgan tigel ustida engilroq tozalanadi. Shu sababli, yuqori quvvatli va arzon oraliq chastotali quvvat manbalari ishlab chiqilgandan so’ng, oraliq chastotali pechlar hali ham istiqbolli.

(3) Quvvat chastotasi erituvchi pech

Quvvat chastotali eritish pechi bir nechta eritish pechlari orasida eng yangi va eng tez rivojlanayotgan hisoblanadi. U asosan quyma temir va po’latni, ayniqsa, yuqori quvvatli quyma temir va qotishma quyma temirni eritish, shuningdek, quyma temir eritmasini isitish, issiqlikni saqlash va tarkibini sozlash uchun ishlatiladi; Bundan tashqari, mis va alyuminiy va ularning qotishmalari kabi rangli metallarni eritish uchun ham ishlatiladi. Agar o’choq hajmi kichik bo’lsa, quvvat chastotasini ishlatish iqtisodiy emas. Misol tariqasida quyma temirni oling. Imkoniyatlar 750 kg dan kam bo’lsa, elektr samaradorligi sezilarli darajada kamayadi. Vakuumli induksion eritish pechi issiqlikka chidamli qotishmalarni, magnit qotishmalarni, elektr qotishmalarini va yuqori quvvatli po’latlarni eritish uchun ishlatiladi. Ushbu turdagi pechning o’ziga xos xususiyati shundaki, eritish jarayonida o’choq harorati, vakuum darajasi va erish vaqtini nazorat qilish osonroq, shuning uchun zaryadning gazsizlanishi juda etarli bo’lishi mumkin. Bundan tashqari, qotishma materialining qo’shilishi miqdori ham aniq nazorat qilinishi mumkin, shuning uchun u alyuminiy va titan kabi faol elementlarni o’z ichiga olgan issiqlikka bardoshli qotishmalar va nozik qotishmalarni eritish uchun ko’proq mos keladigan pechdir.

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