Video: Thaum twg koj yuav tsum tau ua kom sov hlau ua ntej vuam?
2024 Tus sau: Taylor Roberts | [email protected]. Kawg hloov kho: 2023-12-16 00:29
Preheating tus steel rau ua welded slows tus nqi txias nyob rau hauv lub weld cheeb tsam. Qhov no yuav tsim nyog rau zam cracking ntawm vuam hlau lossis thaj chaw cuam tshuam tshav kub Qhov xav tau preheat nce nrog hlau tuab, weld txwv, cov ntsiab lus carbon/alloy ntawm hlau , thiab diffusible hydrogen ntawm lub vuam hlau.
Raws li txoj cai, koj ua preheat steel ua ntej welding kub?
Preheating mus rau 50 ° C (122 ° F) nrog lub teeb yuav tsum txaus kom qhuav saum npoo. Feem ntau cov lej tsuas yog xav kom rov tsim nyog vuam txheej txheem yog tias preheat kub yog "poob qis" ntau dua li ib qho nyiaj (piv txwv li 100 ° F) tshaj qhov tsim nyog.
Ib yam li ntawd, lub hom phiaj ntawm preheating hauv vuam yog dab tsi? Preheating, yog kauj ruam tseem ceeb hauv ntau daim ntawv thov vuam, ua rau tus nqi qeeb cua txias nyob rau hauv ib tug tiav weld, txo tus nqi ntawm hydrogen nyob rau hauv nws, thiab txo qhov kev pheej hmoo ntawm tawg.
Ib yam nkaus, koj puas xav tau preheat stainless hlau ua ntej welding?
Preheating ntawm hlau ua kom txias txias hauv weld cheeb tsam; nws yuav yog tsim nyog kom tsis txhob tawg nyob rau hauv lub vuam hlau lossis nyob hauv thaj chaw cuam tshuam tshav kub. * cov no hlau tsis muaj peev xwm ua rau tawg ntawm hydrogen, yog li ua ntej cua sov tsis tshua xav tau, tsuas yog txo qhov kev pheej hmoo ntawm kev nyuaj siab me me hauv ntu tuab.
Dab tsi yog qhov preheating?
Preheating koom nrog ua kom sov lub hauv paus hlau, ib qho tag nrho lossis tsuas yog thaj tsam ib puag ncig sib koom ua ke, mus rau qhov tshwj xeeb xav tau kub, hu ua preheat kub, ua ntej welding.
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