Na-aga n’ihu nkedo tundish a wụrụ awụ akụrụngwa ọkụ kpo oku

Nyochaa 1

Tundish gbazere nchara induction akụrụngwa kpo oku na-etolite site na ọganihu nke teknụzụ nkedo na-aga n’ihu, nkwalite nke mma ígwè chọrọ, mkpa nchekwa ike na mbelata oriri, yana ndakọrịta nke nnụcha mpụga na usoro nkedo na-aga n’ihu. Ogo nchara dị iche iche nwere ihe dị iche iche chọrọ na AT nke igwe a wụrụ awụ nke superheat. N’ihi na oké efere, iji belata esịtidem cracks na rụrụ center, AT kwesịrị ala (5 ~ 200T); maka efere ndị na-ekpo ọkụ na-ekpo ọkụ na-ekpo ọkụ, a chọrọ n’elu ka ọ nwee ezigbo mma. Nke dị elu (15 ~ 300 ℃). Otú ọ dị, a ga-edozirịrị nnukwu ọkụ nchara a wụrụ awụ n’ime ebe ụfọdụ iji belata ngbanwe. Nke a bụ ọnọdụ dị mkpa iji hụ na ọganihu dị mma nke mmepụta nkedo na-aga n’ihu, gbochie nkwụsị nke nozzles ma ọ bụ gbochie ihe mberede na-agbapụta, ma hụ na ọ dị mma nke nkedo. Ịkwalite ọrụ kpo oku nke tundish na-eme ka o kwe omume ijikwa ọkụ ọkụ nke ígwè a wụrụ awụ nke ọma. Okpomọkụ nke igwe a wụrụ awụ nke ladle dị iche iche na-agbanwe, nke nwere mmetụta ọjọọ na usoro nkedo na-aga n’ihu, na ikpo ọkụ nke tundish nwere ike ịkwụ ụgwọ ya ruo n’ókè ụfọdụ. Agbanyeghị, ekwesịrị ịkọwapụta na idobe nnukwu ọkụ nchara gbazere kwụsiri ike na-adabere n’ụdị okpomoku kwesịrị ekwesị na nhazi nhazi mgbe ịpịrị ahụ, na kpo oku tundish nwere ike rụọ ọrụ mgbakwunye. Ka o sina dị, ikpo ọkụ na njikwa ígwè a wụrụ awụ na tundish ka na-enweta nlebara anya site n’aka ndị obodo na-emepụta ihe. Mba ụfọdụ ndị Japan, United States, United Kingdom, na France nọchitere anya ha emewo nyocha n’ike n’ike banyere teknụzụ kpo oku igwe a wụrụ awụ site na 1970 ruo 1980. Ụlọ ọrụ Kawasaki nke Japan buru ụzọ mepụta ma nweta patent Japanese dị ka n’afọ 1982. Ka ọ dị ugbu a, teknụzụ tundish a wụrụ awụ nchara na-emepụta nke ọma ma ọ bụ na-etolite na-emekarị usoro ikpo ọkụ anụ ahụ. Na usoro kpo oku anụ ahụ, a na-eji ike eletrik eme ihe dị ka isi iyi ọkụ ma gbanwee dịka ike eletrik si dị. Enwere ike kewaa usoro dị iche iche: akụrụngwa ọkụ induction electromagnetic, kpo oku plasma, kpo oku electroslag na teknụzụ ọkụ seramiiki DC.

Ngwa kpo oku induction Tundish nwere njirimara ndị a:

(1) Ọsọ ọkụ ọkụ ngwa ngwa na arụmọrụ ọkụ eletrik dị elu;

(2) Ụfọdụ ụdị nwekwara ụfọdụ electromagnetic ịkpali mmetụta, nke na-eme ka mwepụ nke inclusions;

(3) Usoro okpomọkụ usoro dị mfe ịchịkwa, na ihe kasị mkpa bụ n’ụzọ ziri ezi ịchịkwa superheat nke a wụrụ awụ ígwè;

(4) Ike kpo oku na-ejedebe site na omimi nke ọkwa mmiri mmiri tundish. Naanị mgbe nchara a wụrụ awụ na tundish na-akwakọba n’otu omimi, ikpo ọkụ nwere ike ịga n’ihu nke ọma.

Enwere ọtụtụ ụdị nke tundish induction akụrụngwa kpo oku:

(1) Dị ka ụdị inductor si dị, enwere ike kewaa ya na akụrụngwa ikpo ọkụ induction induction na cored induction kpo oku;

(2) Dị ka ihe owuwu nke inductor si dị, ọ nwere ike kewaa n’ime ụba ụdị mmejọ na ọwara ụdị (groove, wụrụ awụ trenchi) induction kpo oku akụrụngwa;

(3) Dị ka akụkụ kpo oku si dị, enwere ike kewaa ya na kpo oku mpaghara na ikpo ọkụ n’ozuzu ya.

2 Na-aga n’ihu nkedo tundish a wụrụ awụ igwe elektrọn magnetik induction ngwaọrụ kpo oku

2. 1 Tundish electromagnetic induction akụrụngwa kpo oku dakọtara na kehoraizin na-aga n’ihu nkedo igwe

Akụrụngwa ọkụ induction tundish electromagnetic dabara na igwe nkedo kwụ ọtọ na-aga n’ihu ka egosiri na eserese 10-7.

A na-akọwa usoro mmepụta nke igwe anaghị agba nchara.

Ọgụgụ 10-7 Tundish electromagnetic induction akụrụngwa kpo oku dabara na igwe nkedo na-aga n’ihu na kwụ ọtọ

Ka agbachara ụdị igwe anaghị agba nchara niile, a na-ebunye ha n’ime ọkụ induction atọ 5t site na tank nri nwere cranes. Mgbe agbazechara nchara ahụ ka ọ bụrụ okpomọkụ achọrọ (ihe dị ka 1650 Celsius), a na-awụsa nchara a wụrụ awụ n’ime ọkụ induction n’ime ladle, wee jiri gwongworo ahụ na-awụsa nchara a wụrụ awụ n’ime ọkụ 8t AOD, ebe ọ na-enweta decarburization. slagging, dephosphorization na sulfur mwepụ, na nhazi nke ihe mejupụtara alloy (karịsịa Cr, Ni), na mgbe ahụ, nchara a wụrụ awụ (ihe mejupụtara na okpomọkụ na-emezu ihe ndị a chọrọ) Tinye nchara a wụrụ awụ na ladle n’ime ladle ma jiri kreenu wụsa. igwe a wụrụ awụ na ladle n’ime oghere nke 8t electromagnetic induction akụrụngwa kpo oku. A na-adọta mmiri mmiri igwe anaghị agba nchara na-ekpo ọkụ site na nchekwa ọkụ wee tụba ya n’ogwe okirikiri site na igwe nkedo na-aga n’ihu na-aga n’ihu wee tinye ya n’ihe ndina jụrụ oyi site n’ịkpụ na ịkpụ. .

Ihe anụ ahụ nke 8t electromagnetic induction kpo oku ladle ka egosiri na eserese 10-8.

8t na 14t tundish electromagnetic induction kpo oku akụrụngwa, tundish induction kpo oku akụrụngwa nwere ike ịchịkwa okpomọkụ nke nchara a wụrụ awụ (njọ njehie bụ naanị ± 5 ~ 6 ℃), si otú a na-ahụ na ịdịmma nke billet. Na mgbakwunye, oge mgbanwe okpomọkụ nke tundish nwekwara ike ịgbatị n’ụzọ kwesịrị ekwesị, na-egosi mmetụta dị mma nke induction ngwa kpo oku.

2. 2 Ngwa Tundish nke induction kpo oku akụrụngwa nke arc na-aga n’ihu nkedo igwe

Ngwa tundish nke akụrụngwa kpo oku induction nke igwe nkedo arc na-aga n’ihu ka egosiri na eserese 10-9.

Mgbe arc billet na-aga n’ihu na-anakwere ngwa ọkụ ọkụ ọkụ ọkụ ọkụ tundish, enwere ike ibelata okpomọkụ nke ịkụ ọkpọ (dịka ọmụmaatụ, ọ nwere ike ịbụ.

Ọgụgụ 10-9 Ngwa Tundish nke induction akụrụngwa kpo oku nke arc na-aga n’ihu nkedo igwe

Site na 1700 ° C ruo 1650 Celsius C), nke a abụghị naanị na-enyere aka melite ndụ nke mkpuchi ọkụ nchara (onye ntụgharị, ọkụ ọkụ eletrik ma ọ bụ ọkụ induction), kamakwa na-eme ka ọnọdụ okpomọkụ nke igwe gbazere sie ike na nkedo na-aga n’ihu ma na-ekwe nkwa ịdị mma nke na-aga n’ihu. nkedo mpempe akwụkwọ.

Dabere na okwu mmeghe a dị n’elu, enwere ike ịtụle na ihe nkedo na-aga n’ihu na tundish magnetik induction akụrụngwa kpo oku bụ teknụzụ na-echekwa ume ọhụrụ na gburugburu ebe obibi. Nkwenye nke ngwaọrụ a bụ ọrụ mgbanwe teknụzụ dịtụ mma maka ụlọ ọrụ igwe, ọ tozurukwa nkwalite na iji ya.

Ọgụgụ 10-10 na-egosi 16t tundish electromagnetic induction akụrụngwa kpo oku.

Ọgụgụ 10-10 16t tundish electromagnetic induction akụrụngwa kpo oku

Onyonyo 10-11 bụ schematic eserese nke tundish nke 14t induction akụrụngwa kpo oku.

Ọgụgụ 10-11 Eserese atụmatụ nke tundish nke 14t induction akụrụngwa kpo oku