Kauv hlau raj yog tsim los ntawm sawb steel coils raws li raw cov ntaub ntawv, uas yog nias ntawm chav tsev kub thiab khoov rau hauv ib tug kauv zoo. Lawv ces welded nrog tsis siv neeg ob-xaim ob-sided submerged arc vuam txheej txheem los tsim cov kauv seam ob sab hauv thiab sab nraud. Cov khoom siv raw siv xws li strip steel coils, vuam hlau, thiab fluxes.
Kev kho decarburization ntawm kauv raj ncaj qha cuam tshuam rau lawv lub neej kev pabcuam, uas yog qhov tseem ceeb ntawm kev xav txog lawv qhov zoo. Qhov cuam tshuam ntawm kev kho decarburization ntawm kauv raj yog qhov tseem ceeb; Yog hais tias qhov saum npoo yog decarburized, lub zog thiab hnav tsis kam ntawm cov kauv raj yuav txo qis, yog li cuam tshuam ncaj qha rau nws lub neej kev pab cuam. Tsis tas li ntawd, yog tias muaj txheej txheej decarburized nyob rau ntawm cov kav raj, qhov nyuaj ntawm txheej txheej yuav txo qis, thiab thaum lub sij hawm quenching, cov kab nrib pleb tuaj yeem tsim rau ntawm qhov chaw ntawm lub workpiece vim qhov sib txawv ntawm qhov sib txawv ntawm sab hauv thiab txheej txheej.
Cov xov xwm tseem ceeb uas ua rau decarburization ntawm qhov chaw ntawm cov kav raj yog oxidizing gases xws li oxygen, dej vapor, thiab carbon dioxide. Thaum cov roj no nkag mus rau hauv kev sib cuag nrog cov kav raj kub, oxidation thiab decarburization ntawm cov hlab ntsha tshwm sim. Yog li ntawd, tswj qhov piv ntawm carbon dioxide rau carbon monoxide nyob rau hauv lub cub tawg kuj tseem ceeb heev.
Lub hauv paus mus kom ze rau kev hais txog decarburization ntawm qhov chaw ntawm cov kav raj txuas nrog ua cov txheej txheem kho cua sov tsim nyog. Txij li thaum decarburization tshwm sim concurrently nrog kev kho cua sov ntawm kauv raj, nws yog ib qho tseem ceeb kom txo tau qhov kev sib cuag ntawm cov kauv raj thiab cua thaum lub sij hawm kho cua sov txheej txheem. Qhov no tuaj yeem pab txhim kho cov tsos ntawm decarburization thiab txo nws cov teebmeem.
