A rilru a buai em em a, a 0 rilru a hah em em bawk a, a rilru a buai em em bawk a. Hmun
Porosity chu stainless steel welded pipe-ah a awm a.
Porosity in stainless steel welded pipes tih hian welding process-a gas a chhuah theih loh laiin weld seam-a lo awm voids a kawk a ni. Porosity awmna hian welded pipe quality a nghawng nasa hle thei a ni. Pakhatnaah chuan porosity hian weld seam chakna leh toughness a ti tlem a. Porosity hian weld-a effective load-bearing area a tihhniam a, pawn lam thiltihtheihna hnuaia awm chuan a chhe thei zawk a ni. Chubakah, porosity chhehvela metal structure hian heng voids awmna avang hian stress concentration a tawk thei a, weld chakna leh toughness a tichak lo zual bawk.
Pahnihnaah chuan porosity hian weld sealability a nghawng thei a ni. Sealability sang tak mamawhna hmunah, petrochemical leh aerospace industry-ah te pawh, weld seam-a porosity hian media leakage a thlen thei a, chu chuan himna atana hlauhawmna nasa tak a thlen thei a ni.
A tawp berah chuan porosity hian weld aesthetic quality a nghawng a ni. Surface porosity hian weld surface chu a inthlau thei a, product hmel a nghawng tha lo a, market competitiveness a ti tlem thei bawk.
Stainless steel welded pipe-a porosity awm chhan
Base material surface treatment dik lo
Base material surface-ah hian bawlhhlawh, rust, water stains, emaw oxide scale ang chi bawlhhlawh a awm chuan heng bawlhhlawh te hian welding laiin gas a ti chhe thei a, a chhuah thei a, weld-a porosity siam theihna a tipung thei a ni.
Welding parameters-in nghawng a neih dan
Welding current, voltage, leh welding speed te hi porosity formation nghawngtu thil pawimawh tak a ni. Welding speed a slow lutuk a, current a sang lutuk chuan molten pool chuan a ti lum lutuk ang a, gas te solubility a ti sang ang. Mahse, cooling lai chuan gas chu a hun takah a tlanchhuak thei lo mai thei a, chu chuan porosity formation a thlen thei a ni. A lehlamah chuan welding speed a rang lutuk a, current a hniam lutuk a nih chuan molten pool temperature a hniam lutuk ang a, chu chuan fluidity tha lo leh gas escape harsa a thlen ang.
Stainless steel welded pipe-a porosity laka invenna tur ruahmanna siam a ni.
Weld hmain base material chunglam chu uluk taka tihfai tur a ni a, chu chuan oil, rust, moisture, oxide scale, leh thil bawlhhlawh dangte a paih chhuak tur a ni. Tin, welding current, voltage, leh welding speed dik tak thlan a pawimawh bawk. Welding quality sang tak neih theih nan a theihna hmunah welding current leh voltage tlem zawk thlan tur a ni a, chutih rualin welding speed chu a remchan dan angin gas chu a tlanchhuah theih nan hun remchang a awm theih nan, chu chuan porosity formation a veng tha hle bawk.