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русский EMT yeeb nkab bender chaw tsim tshuaj paus' s yeeb nkab zoo thiab kev pab cuam lub neej yog thib ob rau qhov tsis muaj, qhov no yog vim hais tias nyob rau hauv cov txheej txheem ua, nws txuas ntau qhov tseem ceeb rau kev pab cuam lub neej ntawm cov yeeb nkab fittings. Piv txwv li, cov roj tiv thaiv vuam: thaum vuam, nyob rau hauv kev tiv thaiv ntawm cov roj, cov chromium thiab npib tsib xee saum nplaim hlau yuav tsis muaj tshuaj lom neeg, uas tuaj yeem ua kom muaj tus yam ntxwv qub thiab tiv thaiv corrosion ntawm stainless hlau.
Raws li EMT yeeb nkab bender chaw tsim tshuaj paus hais nyob rau hauv tus txheej txheem ntawm pickling passivation: tuaj yeem ua rau sab nrauv phab ntsa ntawm cov kav dej thiab cov yeeb nkab fittings muaj nyias thiab ntom, nyuaj passivation zaj duab xis, yog qhov laj thawj los tiv thaiv xeb. Thiab cov khoom ci ci fusion: tom qab tsim thiab vuam cov txheej txheem, stainless hlau yeeb fittings yuav tsum yauv 1050 degree khoom fusion kho, uas yog siv los tshem tawm qhov kev nyuaj siab sab hauv los ntawm deformation ntawm stainless hlau yeeb fittings, txo kev nyuaj siab corrosion, rov qab pauv hloov pauv nyob rau vuam cov txheej txheem ntawm cov yeeb nkab fittings, thiab yaj carbides hauv austenite kom tiv thaiv kev cuam tshuam tsis zoo.
Txawm hais tias lawv muaj ntau cov txheej txheem ua cov txheej txheem, tab sis qhov no yog txhawm rau txhawm rau muab kev pab lub neej ntawm stainless hlau yeeb fittings. EMT yeeb nkab bender chaw tsim tshuaj paus' s tswj thiab ua cov khoom ntim: cov khoom sib khi yog lub ntsiab lus tseem ceeb ntawm kev pab cuam lub neej ntawm cov kav raj xaib, thiab lub neej kev pab cuam ntawm sealing cov khoom txiav txim siab kev pab cuam lub neej ntawm cov kav raj xa dej.
