Kedu ihe bụ ọkpọkọ ígwè ERW? Nnukwu ihe dị iche n'etiti ọkpọkọ ígwè ERW (Electric Resistance Welding, nke a na-akpọ ERW) na ọkpọkọ nchara enweghị nkebi bụ na ERW nwere eriri weld, nke bụkwa isi ihe na-eme ka ọkpọkọ ígwè ERW dị mma. Oge a ERW ígwè ọkpọkọ mmepụta teknụzụ na akụrụngwa, n'ihi na mba Karịsịa na unremitting mgbalị nke United States na mba ndị ọzọ kemgbe ọtụtụ afọ, enweghị nkebi nke ERW ígwè ọkpọkọ e doziri na-eju afọ. Ụfọdụ ndị mmadụ na-ekewa enweghị nkebi nke ọkpọkọ ígwè ERW ka ọ bụrụ enweghị nkebi geometric na enweghị nkebi anụ ahụ. Enweghị enweghị nkebi geometric pụtara ikpochapụ ọkpọkọ ígwè ERW. Ime na mpụga burrs. N'ihi ọganihu na-aga n'ihu na nkwalite nke nhazi nke usoro nkwụsị nke ime ihe na-eme ka ọkpụkpụ dị n'ime ya na ngwá ọrụ ịkpụ, a na-edozi nke ọma n'ime burrs nke nnukwu na ọkara dayameta ígwè ọkpọkọ. Enwere ike ịchịkwa burrs dị n'ime na gburugburu -0.2mm ~ + O.5mm ma nweere onwe ya. Seamization na-ezo aka ọdịiche dị n'etiti metallographic Ọdịdị n'ime weld na isi metal, na-akpata mbelata n'ibu Njirimara nke weld ebe. Ọ dị mkpa ka e mee ihe iji mee ka ọ bụrụ otu na agbanwe agbanwe. Usoro ịgbado ọkụ dị elu nke ERW ígwè ọkpọkọ na-eme ka tube ahụ tọgbọrọ chakoo The okpomọkụ nkesa gradient dị nso na nsọtụ na-etolite a wụrụ awụ mpaghara, a ọkara gbazee mpaghara, a superheated Ọdịdị, a normalizing mpaghara, ezughị ezu normalizing mpaghara, a tempering mpaghara. , mpaghara njirimara ndị ọzọ. N'ime ha, ihe owuwu nke mpaghara a na-ekpo ọkụ bụ austenite n'ihi okpomọkụ ịgbado ọkụ n'elu 1000 ° C. Mkpụrụ ndị ahụ na-eto ngwa ngwa, a ga-emepụta usoro kristal siri ike na nke na-adịghị ike n'okpuru ọnọdụ jụrụ oyi. Na mgbakwunye, ịdị adị nke gradient okpomọkụ ga-ebute nrụgide ịgbado ọkụ. Nke a na-ebute ọnọdụ ebe akụrụngwa akụrụngwa nke mpaghara weld dị ala karịa nke ihe ndabere na enweghị ntụpọ anụ ahụ. Ọ bụ site na usoro ọgwụgwọ okpomọkụ a na-ahụkarị na mpaghara nke weld seam, ya bụ, iji igwe na-ekpo ọkụ induction ugboro ugboro na-ekpo ọkụ na mpaghara weld ruo AC3 (927 ° C), wee mee usoro ikuku jụrụ oyi na ogologo 60m. na ọsọ nke 20m / min, wee mee ka mmiri dị jụụ mgbe ọ dị mkpa. Iji usoro a nwere ike nweta iji kpochapụ nchekasị, mee ka ọ dị nro na nụchaa ihe owuwu ahụ, ma melite ihe arụ ọrụ zuru oke nke mpaghara ọkụ ịgbado ọkụ, ugbu a, nkeji ERW dị elu nke ụwa ejirila usoro a hazie welds, wee nweta ya. nti utịp. Igwe nchara ERW dị elu abụghị naanị The weld seam na-enweghị ike ịmata, na weld seam ọnụọgụ ruru 1, nweta a egwuregwu n'etiti weld ebe Ọdịdị na isi ihe. Ọkpụkpụ ígwè ERW nwere uru nke iji mkpuchi na-ekpo ọkụ na-ekpo ọkụ dị ka ihe eji eme ihe, na ọkpụkpụ mgbidi nwere ike ịchịkwa n'otu n'otu na ihe dịka ± 0.2mm. Ngwunye abụọ nke ọkpọkọ ígwè Dị ka ọkọlọtọ American APl ma ọ bụ GB/T9711.1 si dị, ọ nwere uru nke njedebe njedebe na nnyefe ogologo oge. N'afọ ndị na-adịbeghị anya, ọrụ netwọkụ ikuku gas dị iche iche na ụlọ ọrụ gas anabatala ọkpọkọ ígwè ERW dị ka ọkpọkọ nchara na netwọk pipeline mepere emepe.