Gas vuam thiab nws daim ntawv thov hauv kev xyaum

Gas vuam thiab nws daim ntawv thov hauv kev xyaum
Gas vuam thiab nws daim ntawv thov hauv kev xyaum

Video: Gas vuam thiab nws daim ntawv thov hauv kev xyaum

Video: Gas vuam thiab nws daim ntawv thov hauv kev xyaum
Video: Zaj Dub - Yog Ntuj Tsis Tig 2024, Lub peb hlis ntuj
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Ib txoj hauv kev ntawm kev sib txuas cov hlau rau ib leeg yog cov roj vuam, uas cov txheej txheem vuam yog ua los ntawm cua sov thiab yaj cov npoo ntawm cov hlau txuas. Nws yog tsim los ntawm kev siv lub vuam nplaim tsim los ntawm kev sib txuas ntawm acetylene nyob rau hauv cov kwj ntawm oxygen. Hydrogen, kerosene, roj av thiab lwm yam combustible gases kuj siv rau cov hom phiaj no. Qhov kub ntawm cov nplaim taws los ntawm kev sib tsoo ntawm cov roj no nce mus txog qhov kub ntawm 3050-3150 ° C. Nyob rau hauv cov roj welding, qhov sib txawv ntawm cov npoo ntawm cov khoom yuav tsum tau muab sau nrog ib tug muab tub lim, uas, thaum melted nyob rau hauv ib tug nplaim hluav taws, sau qhov sib txawv.

gas vuam
gas vuam

Gas welding yog ua los ntawm cov khoom siv tshwj xeeb, muaj cov thooj voos kheej kheej rau khaws cov pa roj, lub reducer nrog ob lub ntsuas siab (siab thiab siab), tsim los tswj cov khoom siv roj thaum lub sijhawm vuam, nrog rau lub teeb thiab hoses rau muab gases rau burner los ntawm cov iav tswj.

gas welding ntawm hlau
gas welding ntawm hlau

Gas welding yog siv hauv kev lag luam los txuas (weld) cov qauv ua los ntawm cov hlau thiab qee cov hlau tsis muaj hlau, suav nrog tooj dag thiabcam khwb cia hlau, muaj ib tug tuab ntawm tsis ntau tshaj tsib millimeters. Tsis tas li ntawd, roj vuam siv tau rau saum npoo, soldering thiab lwm yam kev kho. Vuam ntawm hlau ntawm ntau dua thickness yog nqa tawm siv hluav taws xob arc vuam. Nws yuav tsum tau muab sau tseg tias roj welding ntawm cov hlau tsis zoo nyob rau hauv kev sib piv nrog hluav taws xob arc vuam.

Txiav cov hlau yog ua nrog lub dav hlau oxygen siv cov cutters lossis cov kub kub tshwj xeeb. Lawv lub ntsiab sib txawv ntawm cov roj vuam torches yog tias lawv muaj ob lub dav hlau oxygen - ib qho rau cua sov cov hlau, lwm qhov rau tshuab tawm cov hlau molten ntawm cov ntsiab lus txiav. Cov cutters txawv nyob rau hauv tus tsim ntawm lub nozzle (lub qhov ncauj), uas yog sib cais nyob rau hauv kev sib raug zoo rau qhov chaw ntawm lub cua sov nplaim hluav taws xob thiab lub dav hlau txiav los ntawm ib tug stepped txheej txheem ntawm nozzles, raws li zoo raws li cov tom ntej thiab concentric sawv daws yuav. Lawv kuj raug faib raws li hom roj siv. Muaj cov cutters rau hydrogen, acetylene, lub teeb roj, hydrogen, thiab lwm yam.

Cov txheej txheem ntawm kev txiav hlau yog raws li hauv qab no: nyob rau ntawm qhov chaw pib txiav, cov hlau tau rhuab los ntawm lub dav hlau cua sov mus rau xim dawb, uas sib haum rau kwv yees li 1000 ° C, tom qab ntawd cov hlau yog ib nrab hlawv. los yog tshuab tawm ntawm qhov chaw txiav. Nws yog ib qho tseem ceeb heev thaum txiav mus rau "kua" qhov kub ntawm cov hlau, uas qhov kev xaiv zoo tshaj plaws rau kev muab lub dav hlau txiav yog xaiv. Haum rau kev txiav hlau, qis carbon thiab qis alloy steels.

gas welding thiab hlau txiav
gas welding thiab hlau txiav

Vim qhov tseeb tias cov roj vuam thiab txiav cov hlau yog cov txheej txheem tsim khoom uas xav tau qee yam kev txawj hauv kev ua haujlwm nrog cov khoom siv roj vuam thiab kev paub txog kev ntsuas kev nyab xeebthaum ua haujlwm kub, rau hom haujlwm no nws yog ib qho tsim nyog yuav tsum koom nrog cov neeg ua haujlwm tsim nyog uas tau txais kev cob qhia tshwj xeeb. Kev tuav cov cuab yeej tsis tu ncua, nrog rau kev tsis saib xyuas kev ntsuas kev nyab xeeb, tuaj yeem ua rau muaj qhov tshwm sim loj.

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