Stainless steel welded pipe-a on-line bright heat treatment hman chhan: pakhat chu stainless steel strip chu tubular shape-a rolling-a cold working process-a lo awm leh welding process-a residual stress lo awm chu tihbo a niStainless steel welded pipe-te chu solid solution-a austenite-a an thawh theih dan tur enfiah a, chutah chuan a lum laia austenite chu precipitation emaw phase transformation emaw a awm loh nan rang taka a lum theih nan process pawimawh tak a ni.
On-Line Bright Heat Treatment-a nghawng nei thilte
1. Heat treatment temperature in nghawng a neih dan
Solution treatment hi austenitic stainless steel tan chuan softening treatment process tha ber a ni.Solution treatment hnua welded pipe hian corrosion resistance tha ber, chakna hniam zawk leh plasticity tha zawk a hmu thei a ni.Chutiang chauh chuan industrial pipe condenser pipe leh chemical pipe te mamawh a phuhruk thei a ni.
Condenser atana stainless steel pipe-a standard requirement angin austenitic stainless steel welded pipe-a heat treatment temperature chu 1050 ~ 1150 °C a tling tur a ni.Chutih rual chuan, heat treatment hnua welded pipe chhung leh pawn lam chu a var leh a hrual a, oxidation color awm lovin a awm tur a ni bawk.Chuvangin, welded pipe te tihlum leh tihlum lai hian khauh taka kalpui a ngai a ni.Temperature change range (furnace body-ah) control tur chuan steel pipe chu venhimna boruak tha takah a awm tur a ni a, traditional water quenching method hmangin temperature sang steel pipe chu oxygen a chhe lo va, pipe chunglam a oxidize loh nan hman theih a ni lo .A tlangpuiin austenitic stainless steel solution treatment temperature chu 1050 ~ 1150 °C a ni.Hetiang temperature hi a thlen loh chuan austenitic stainless steel chhungril lam chu a nghet lo va, carbide te chu a lo tla chhuak ang a, chu chuan steel pipe chunglam chu rawng eng tak a thleng lo ang a, pipe chunglam chu a dum angin a lang ang.
2. Shielding gas-in nghawng a neih dan
Stainless steel welded pipe-a heat treatment hian oxidation-free continuous heat treatment furnace hmangin protective gas a hmang a, chu chuan oxidation tel lovin surface eng tak a hmu thei a, chu chuan traditional pickling process chu a titawp thei a ni.Protective gas hman theih te chu high-purity hydrogen, decomposed ammonia leh venhimna gas dangte an ni.Stainless steel welded pipe-ah hian chromium a awm avangin, venhimna gas hman thin (hydrocarbon decomposition gas, etc.)-ah chuan bright heat treatment tih theih a ni lo va, vacuum environment-a tih a tha ber.Mahse, in-line stainless steel welded pipe-a heat treatment atan chuan vacuum environment hman theih a ni lo va, inert gas (argon ang chi) hman theih a ni.Austenitic stainless steel welded pipe-a heat treatment atana venhimna gas atana inert gas hman hian chemical reaction-a tel lo, simple operation, him leh rintlak, mahse reducing property a nei lo, chuvangin heat treatment effect a nei lo bright heat treatment quality mamawh tha ber a tlin thei lo.Silver grey a ni.Chubakah, inert gas man a to avangin lian tham siamna atan pawh a tha lo hle.Heat treatment process chungchanga zirchianna leh bright heat treatment hnua stainless steel welded pipe quality chungchanga analysis leh test nawn leh dan atanga a lan dan chuan, heat treatment furnace chhunga boruak tihthianghlim nan inert gas hmanga tihthianghlim hmasak dan a ni a, chu chu thlak leh a ni inert gas with hydrogen, chuan bright heat treatment a awm tih a tichiang ta a ni.Quality mamawh a ni. Hangao Tech (SEKO Machinery) te chuan an lar hle. heat preservation bright annealing heat treating machine hi online type hmanrua a ni a, a bik takin stainless steel welded pipe siamna line hrang hranga siam a ni.
3. Cooling temperature in nghawng a neih dan
Stainless steel welded pipe chu 1050 ~ 1150 °C thlenga tihlum hnuah welded pipe chu rang takin a lum tur a ni.oxidize lo tur temperature-ah tihhniam tur a ni.Chuvangin cooling temperature hi a pawimawh hle a, temperature range pawh khauh taka control a ngai a ni.
(Laser Welding Tube Mill Line atan Online-a Bright Annealing Furnace hmanga siam a ni)
4. Weld pipe chunglam nghawng
Furnace chhunga a luh hmaa stainless steel welded pipe chunglam dinhmun hian bright heat treatment-ah nghawng lian tak a nei a ni.Weld pipe chunglam chu furnace chhunga tui, grease leh bawlhhlawh dangin a tihbawlhhlawh chuan, bright heat treatment hnuah welded pipe chung lamah light green oxide rawng a lang ang.Chuvangin heat treatment furnace chhunga kan luh hmain stainless steel welded pipe chunglam chu a fai hle tur a ni a, welded pipe chunglam chu tui awm tir loh tur a ni.A tul chuan dryer-ah a vawt hmasa thei a, chutah chuan furnace-ah dah theih a ni.
5. Heat Treatment Furnace Sealing-in nghawng a neih dan
Heat treatment furnace chu khar tur a ni a, pawn lam boruak atanga inthiarfihlim tur a ni.A bik takin welded pipe furnace body chhunga a luhna hmun leh welded pipe furnace body atanga a chhuahna hmunah te hian heng hmuna sealing ring hi a inbel awlsam hle a, chuvangin enfiah fo tur a ni a, a hun takah thlak tur a ni.Micro-leakage ven nan furnace chhunga protective gas hian positive pressure engemaw zat a neih a ngai a ni.Hydrogen protective gas a nih chuan a tlangpuiin standard atmospheric pressure aia tam a ngai a ni.
6. Bright heat treatment-a thil dangte nghawng
Hnathawh chhung hian welding hi a kal zel tur leh a nghet em tih enfiah a ngai a ni.Weld pipe-a khur emaw, seam emaw a awm chuan heat treatment furnace hnathawh chu tihtawp a ngai a, chuti lo chuan welded pipe chu furnace chhungah a puak thei a ni.Chu bakah, welding effect a tha lo va, welding hole atanga boruak emaw, tuihna emaw spray chuan furnace chhunga venhimna boruak a tichhia ang a, bright heat treatment effect a nghawng bawk ang.
