Kov pwm yog ib yam khoom siv kho tshuab tsim nyog rau kev tsim khoom thiab tsim qee yam khoom siv tes ua. Nyob rau hauv tus txheej txheem ntawm kev siv, vim muaj kev cuam tshuam ntawm lwm yam, welding marks yuav inevitably tshwm sim. Yog tias muaj cov cim vuam uas twb muaj lawm, yuav ua li cas nrog lawv?
1. Teem cov txheej txheem dhau los ua qhov chaw uas cov kab vuam yog tsim, thiab txiav nws tawm thiab tshem tawm tom qab tsim.
2. Ntxiv ib lub qhov tso pa tawm rau cov pwm tuav, thiab teeb tsa lub pas nrig ntawm qhov chaw uas muaj cov cim vuam tsim, uas yog qhov tsim nyog rau kev tso pa tawm.
3. Kho cov txheej txheem tsim thiab txhim kho fluidity. Xws li ua kom cov resin kub, ua kom cov pwm pwm kub, ua kom lub zog txhaj tshuaj thiab ceev, thiab lwm yam.
4. Yog tias tsuas yog cov tsos ntawm tus kov pwm raug cuam tshuam, txoj hauj lwm ntawm plaub lub qhov cub tuaj yeem hloov pauv hloov txoj hauj lwm ntawm cov kab vuam. Los yog qhov chaw uas cov kab weld tsim yog kho raws li qhov tsaus nti glossy nto thiab hloov kho.
5. Teem cov txheej txheem dhau los ua qhov chaw uas cov kab vuam yog tsim, thiab tom qab ntawd txiav nws tawm thiab tshem tawm tom qab tsim.
