Vuam steel yeeb nkab slag yog ib qho seem tshuav nyob rau hauv lub weld.In theoretical analysis, lub ntsiab yog vim li cas rau qhov tsis siv neeg vuam seams ntawm faus arcs yog feem ntau cov nram qab no 3 ntsiab lus: ① Muaj ntau ntau yam khoom siv raw khoom (xws li niam cov khoom, vuam hlau. , thiab welds); ③ Cov txheej txheem vuam xaiv tsis raug yog qhov tsis tsim nyog, uas tsis tsim nyog rau qhov tshwm sim ntawm slag.
Raws li cov yam ntxwv ntawm cov pob qij txha ncaj faus arc welded steel kav, qhov laj thawj tuaj yeem txiav txim siab los ntxuav cov seams los tsim slag thaum txheej tsis ntxuav thaum txheej txheej tsis huv.
Rau cov khoom siv raw, muaj ntau ntau yam khoom thiab cov welded seams tsim residue. Tom qab qhov kev xeem ua ntej-welding ntawm niam cov khoom, qhov tshiab vuam hlau thiab vuam, thiab lwm yam. Tej yam tsis yog lub ntsiab ua rau slag.
Yog li ntawd, lub ntsiab yog vim li cas rau lub melting hlau clamping ntawm cov phab ntsa tuab nyob rau hauv ncaj phab ntsa faus arc vuam yog cov txheej txheem vuam tsis raug xaiv.Cov txheej txheem welding tsis ntawm cov phab ntsa tuab stitches faus arc welded kav feem ntau: kab zog, vuam tam sim no, welding voltage, vuam ceev, vuam hlau sib nrug, txoj kab nqes loj, thiab lwm yam.
Nyob rau hauv-depth tsom xam los ntawm nam ntawm welding metallurgical, peb yuav pom tau hais tias qhov ua rau ntawm lub vuam seam fusion kab tsim residue clamps yog tias cov melting kab kub yog tsawg heev, yog li ntawd cov kua slag yog lig dhau los ua precipitated.Low los yog txias ceev.
Txoj kev pom qhov ntev-sewing steel yeeb nkab ntawm txiav ncaj seam yog qi txiav. Qi txiav yog siv cov cua kub uas tsim los ntawm cov pa oxygen thiab acetylene combustion los ua kom cov hlau hlais melted ntawm cov hlau scum uas ua rau kub kub.Qhov ncaj seam steel yeeb nkab yog txiav tawm.
Qhov kev ua tau zoo ntawm cov kav hlau ncaj seam steel nrog cov roj txiav yog siab, thiab kev ua haujlwm ntawm qhov kev txiav yog qhov zoo, tab sis ib txheej ntawm oxide zaj duab xis yuav txuas rau saum npoo ntawm qhov incision.Yuav tsum tau muab tshem tawm ua ntej vuam. Thaum lub sij hawm installation. ntawm cov yeeb nkab steel ncaj, ntau cov kav hlau ncaj ncaj, steel phaj, thiab cov profiles nrog txoj kab uas loj dua ntawm cov kav cua txiav yog feem ntau siv.
Cov cuab yeej cua ntawm kev txiav cov kav hlau ncaj ncaj yog muab faib ua ob hom: tua thiab nqus hom thiab lwm hom kev siab raws li qhov sib txawv ntawm acetylene.Cov pa rau cov roj txiav yog muab los ntawm lub tog raj kheej oxygen, thiab acetylene yog muab los ntawm acetylene gas. cylinder lossis acetylene generator.
Vim muaj kev phom sij ntawm qi txiav, nws yog ib qho tsim nyog yuav tsum tau ua raws li cov kev cai ua haujlwm nruj me ntsis thaum txiav cov yeeb nkab steel stitched nrog roj txiav txoj kev:
1. Txawm hais tias qhov ncaj steel yeeb nkab tig los yog kho lub qhov ncauj, nws yuav tsum tau khaws cia vertically ntawm qhov ncaj seam steel yeeb nkab. Tom qab txiav, lub qhov ncauj maj mam tilted rau pem hauv ntej mus rau txoj kab txiav ntawm qhov txiav taw tes ntawm 70 degree -80 degree kaum sab xis.
2. Thaum cov roj txiav kho ncaj seam steel kav feem ntau pib nrog qhov qis ntawm cov yeeb nkab steel ncaj.
3. Kev xaiv ntawm kev txiav lub qhov ncauj thiab cov pa oxygen muaj feem xyuam nrog cov tuab ntawm cov hlau ncaj, uas tuaj yeem xaiv tau raws li qhov xwm txheej tiag tiag.
4. Qhov kev ncua deb ntawm qhov chaw ntawm lub qhov ncauj thiab cov yeeb nkab ncaj steel yuav tsum tau txiav txim siab raws li qhov ntev ntawm cov nplaim hluav taws kub thiab qhov tuab ntawm cov yeeb nkab ncaj seam steel. Feem ntau, nws raug nquahu kom ua 3--5mm ntawm qhov kawg ntawm lub plawv nplaim taws.
5. Tom qab qhov ncaj seam steel yeeb nkab raug txiav tawm, cov oxidative hlau residue ntawm qhov kev txiav ntawm riam los yog tes xuab zeb log yog siv los ua kom nws du thiab huv si.
6. Qhov kawg ntawm kev txiav cov pa roj yuav tsum ceev ceev kaw qhov txiav cov pa valve thiab acetylene valve preheating oxygen valve.
