High-quality strip continuous rolling production leh electric welding leh testing technology hmasawnna chak tak a awm mek hnuah, welding quality tihchangtlun zel a nih avangin 316L stainless steel industrial welded pipe chi hrang hrang pawh a pung zel a, industry tam takah stainless steel a thlak tawh bawk. Tube chu sew rawh. Welded pipe siam chhuahnaah chuan weld reinforcement hi harsatna lian tak a ni tih theih a ni.
A rilru a buai em em a, a rilru a hah em em bawk a, a rilru a buai em em bawk a, a rilru a hah em em bawk a.
(1) Stress corrosion crack te hi weld toe ah hian a awm awlsam hle.
Butt joint-a stress awm chhan ber chu welding height atanga siam a ni a, butt joint weld toe-a in-situ stress hi a lian hle bawk.
Stress index dimension chu weld san zawng h, weld toe-a intersection angle θ leh corner semi-warp r te an ni. Welding height h a san chuan angle θ a tisang a, a value tlahniam chuan stress index a ti sang ang.
Weld reinforcement a tam poh leh stress level a na zawk a, mahse butt welding compressive strength erawh a tlahniam thung ang. Weld hnuah, a san zawng tam lutuk chu flatten la, butt weld aia sang a nih chuan stress tihziaawm rawh. A châng chuan butt welding-a compressive strength a tipung thei bawk. External weld hian residual height lian tak a nei a, chu chuan pressure expansion hnua tube shape a tichhe thei ang.
Straight arc welded pipe chu pressure hnuaia tihzauh a nih chuan, seamless steel pipe chu veilam leh dinglama outer mold, a chhung lam bang inang leh steel pipe expansion specification nei lo angin an khuh a ni. Chuvangin, weld tihchakna chu a lian lutuk a nih chuan, diameter a zau chuan, weld-in a ngaihtuah shear stress chu weld lian tak sir lehlamah 'small straight edges' a ni tlangpui.
Mahse, hnathawh tawhna chuan external weld reinforcement chu 2mm emaw a aia tlem emaw a manipulate a nih chuan pressure a zau hunah 'small straight edges' neih a awlsam lo tih a finfiah a ni. Pipe type hi chhiatna tuar awlsam a ni lo. Hei hi a chhan chu pawn lam weld tihchakna a tlem vang a ni a, butt weld-in a phur shear stress pawh a tlem avangin a ni. Hetiang shear stress hi ductile deformation range chhunga awm a nih chuan, unloading hnuah resilience a lo awm a, chu chu tui pipe chu a pangngaiin a lo kir leh ang.
(2) Internal weld seam hian residual height lian tak a nei a, chu chuan transport materials te power leh energy a tisang a ni.
Arc welded pipe pawn lam chu transportation atana hman a nih loh chuan anti-corrosion solution hmanga khuh a nih loh chuan welding seam hian residual height lian tak a nei a, transportation material laka frictional resistance pawh a lian hle a, chu chuan transportation pipeline-a energy hman zat a tipung ang.
(3) Pawn lam welding thickness a lian a, chu chu corrosion venna atan a tha lo.
Hnathawh laiin epoxy resin laminated glass cloth chu anti-corrosion atan hman a nih chuan, outer weld seam-a extra height chuan weld toe-ah nghet taka press a ti harsa ang. Chu bakah, welding seam a sang a, anti-corrosion layer a thim tam poh leh standard anti-corrosion layer thickness chu weld seam tawp atanga chhut a ni a, hei hian anti-corrosion man a tisang a ni.
Internal scraper type internal weld removal equipment nen khaikhin chuan, . HAGAO Tech (Seko Machinery) te chuan an rawn ti a. Air-cooled internal weld flattening equipment hian stainless steel pipe chhung lam bang chungah scratch a nei tlem zawk. A hnathawh dan chu built-in mandrel hmanga rolling die nena inzawmna siam a, inner weld seam-a vawi 30/min-a rolling repeated tih a ni a, chutiang chuan weld seam leh base metal chu a inzawm khawm zawk a, stress a tlahniam zawk a ni.
Chutiang harsatna i neih chuan min rawn zawt thei ang. Kan chhang thei che hi kan lawm hle a ni.
