Ukuhlukaniswa okuyisisekelo kwesithando somlilo sokungeniswa

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.

Isithando somlilo esincibilikayo sihlukaniswe imvamisa ephezulu, imvamisa ephakathi nendawo kanye nemvamisa yamandla.

(1) Isithando somlilo esincibilika kakhulu

Umthamo wesithando somlilo we-high-frequency ngokuvamile ungaphansi kwama-50 kg, ofanele ukuncibilikisa insimbi ekhethekile nama-alloys akhethekile kuma-laboratories kanye nokukhiqizwa okuncane.

(2) Isithando somlilo esincibilikisa imvamisa emaphakathi

Amandla kanye namandla esithando somlilo esincibilikisa i-intermediate frequency makhulu kunaleso lesithando somlilo esiyifrikhwensi ephezulu. Isetshenziselwa ikakhulukazi ukuncibilikisa izinsimbi ezikhethekile, ama-alloys kazibuthe nama-alloys ethusi. Ngenxa yokuthi lolu hlobo lwesithando somlilo ludinga okokusebenza ezibizayo zokuguqula imvamisa, lushintshelwe kwisithando somlilo esingenasici samandla kwezinye izikhathi ezinkulu. Kodwa-ke, uma kuqhathaniswa nesithando somlilo sezimboni, isithando somlilo esiphakathi nendawo sinezici zayo eziyingqayizivele. Isibonelo, ngesithando somlilo somthamo ofanayo, amandla okufaka wesithando somlilo esiphakathi sikhulu kunesithando somlilo wezimboni, ngakho-ke isivinini sokuncibilika siyashesha. Isithando somlilo esiphakathi nendawo asidingi ukuphakamisa ibhulokhi yesithando somlilo lapho isithando somlilo esibandayo siqala ukuncibilika. Insimbi encibilikisiwe ingathululwa, ngakho-ke ukusetshenziswa kungaphezulu. ngaphezu kwalokho, isixazululo esithandweni sokuncibilikisa imvamisa esimaphakathi sine-scour elula ku-crucible, okuzuzisa ulwelwesi lwesithando somlilo. Ngakho-ke, ngemva kokuthuthukiswa kwamandla aphezulu futhi ashibhile amandla kagesi aphakathi nendawo, izithando zomlilo ezimaphakathi zisathembisa.

(3) Isithando somlilo esincibilikisa ifrikhwensi yamandla

Isithando somlilo sokuncibilikisa amandla singesakamuva futhi esathuthuka ngokushesha phakathi kweziko lokuncibilikisa amaningana. Ngokuyinhloko isetshenziselwa ukuncibilika kwensimbi ensimbi nensimbi, ikakhulukazi insimbi enamandla amakhulu kanye ne-alloy cast iron, kanye nokushisa, ukugcinwa kokushisa nokulungiswa kokwakheka kwesisombululo sensimbi; ngaphezu kwalokho, iphinde isetshenziselwe ukuncibilika kwezinsimbi ezingezona ayoni njengethusi ne-aluminium nama-alloys azo. Uma umthamo wesithando somlilo mncane, akukhona ukonga ukusebenzisa imvamisa yamandla. Thatha insimbi eyinsimbi njengesibonelo. Uma umthamo ungaphansi kuka-750 kg, ukusebenza kahle kukagesi kuzokwehla kakhulu. Isithando somlilo esincibilikisa ivacuum sisetshenziselwa ukuncibilikisa ama-alloys angavimbeli ukushisa, ama-alloys kazibuthe, ama-alloys kagesi nezinsimbi ezinamandla aphezulu. Isici salolu hlobo lwesithando somlilo ukuthi kulula ukulawula izinga lokushisa lesithando somlilo, i-vacuum degree kanye nesikhathi sokuncibilika ngesikhathi sokuncibilika, ngakho-ke ukuchithwa kwe-degassing kwecala kunganele kakhulu. Ngaphezu kwalokho, inani elingeziwe le-alloy material lingalawulwa ngokunembile, ngakho liyisithando somlilo esilungele ukuncibilikisa ama-alloys angashisi nama-alloys anembayo aqukethe izinto ezisebenzayo ezifana ne-aluminium ne-titanium.

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