Sehlopha sa mantlha sa sebōpi sa induction

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.

Sebōpi sa ho qhibiliha se arotsoe ka maqhubu a phahameng, maqhubu a mahareng le maqhubu a matla.

(1) Sebōpi se qhibilihang ka maqhubu a phahameng

Bokhoni ba sebōpi se nang le maqhubu a phahameng hangata bo ka tlase ho lik’hilograma tse 50, tse loketseng ho qhibilihisa tšepe e khethehileng le li-alloys tse khethehileng lilaboratori le tlhahiso e nyenyane.

(2) Sebōpi sa ho qhibiliha sa maqhubu a mahareng

Bokhoni le matla a sebōpi sa ho qhibilihisa maqhubu a mahareng a maholo ho feta a sebōpi se phahameng sa maqhubu. Haholo-holo e sebelisetsoa ho qhibilihisa litšepe tse khethehileng, li-alloys tsa makenete le lisebelisoa tsa koporo. Hobane mofuta ona oa sebōpi o hloka lisebelisoa tse turang tsa ho fetolela maqhubu, o fetotsoe ho sebopi sa motlakase se se nang motlakase ka linako tse ling tse kholoanyane. Leha ho le joalo, ha ho bapisoa le sebōpi sa maqhubu a indasteri, sebōpi sa maqhubu a mahareng se boetse se na le likarolo tsa sona tse ikhethang. Ka mohlala, bakeng sa sebōpi sa matla a tšoanang, matla a ho kenya letsoho a sebōpi sa maqhubu a mahareng a maholo ho feta a sebōpi sa maqhubu a indasteri, kahoo lebelo la ho qhibiliha le potlakile. Sebōpi sa maqhubu a mahareng ha se hloke ho phahamisa boloko ba sebōpi ha sebōpi se batang se qala ho qhibiliha. Tšepe e qhibilihisitsoeng e ka tšolloa, kahoo tšebeliso e ngata Sebōpi sa maqhubu a matla sea fetoha ebile se bonolo; ho phaella moo, tharollo ka har’a sebopi sa ho qhibilihisa maqhubu a mahareng se na le sebopi se bobebe holim’a crucible, e leng molemo ho lesela la sebōpi. Ka hona, ka mor’a ho nts’etsopele ea matla a phahameng le a theko e tlaase a motlakase oa maqhubu a mahareng, libono tsa maqhubu a mahareng li ntse li tšepisa.

(3) Sebōpi sa ho qhibiliha ha motlakase

Sebōpi sa ho qhibilihisa matla ke sa morao-rao ebile se ntse se tsoela pele ka potlako har’a libopi tse ‘maloa tsa ho qhibilihisa. E sebelisoa haholo-holo bakeng sa ho qhibiliha ha tšepe e entsoeng ka tšepe le tšepe, haholo-holo matla a phahameng a tšepe le tšepe ea alloy cast, hammoho le ho futhumatsa, ho boloka mocheso le ho lokisa motsoako oa tharollo ea tšepe; Ho phaella moo, e boetse e sebelisoa bakeng sa ho qhibiliha ha litšepe tse se nang ferrous tse kang koporo le aluminium le lisebelisoa tsa tsona. Haeba matla a sebōpi a le monyenyane, ha ho na chelete ho sebelisa maqhubu a matla. Nka mohlala oa tšepe ea tšepe. Ha matla a ka tlase ho 750 kg, matla a motlakase a tla fokotseha haholo. Vacuum induction melting sebōpi se sebelisetsoa ho qhibilihisa li-alloys tse sa keneleng mocheso, li-alloys tsa makenete, li-alloys tsa motlakase le litšepe tse matla haholo. Tšobotsi ea mofuta ona oa sebōpi ke hore ho bonolo ho laola mocheso oa sebōpi, tekanyo ea vacuum le nako ea ho qhibiliha nakong ea ho qhibiliha, kahoo degassing ea tefiso e ka ba e lekaneng haholo. Ntle le moo, palo ea tlatsetso ea lisebelisoa tsa alloy le eona e ka laoloa ka nepo, ka hona ke sebōpi se loketseng haholoanyane bakeng sa ho qhibilihisa li-alloys tse sa keneleng mocheso le li-alloys tse nepahetseng tse nang le likarolo tse sebetsang joalo ka aluminium le titanium.

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