Wɔ nkɔso a ɛkɔ so ntɛmntɛm a ɛfa strip a ɛkorɔn a ɛkɔ so rolling production ne nkɔso a ɛba wɔ anyinam ahoɔden welding ne sɔhwɛ mfiridwuma, nkɔso a ɛkɔ so wɔ welding su, 316L stainless dade mfiridwuma welded pipes nso rekɔ soro, na asesa stainless dade wɔ nnwuma pii mu. Sew tube no. Wɔ welded pipe a wɔyɛ no mu no, wobetumi aka sɛ weld reinforcement no yɛ ɔhaw a ɛho hia yiye.
Weld seam a ɛboro so a ɛyɛ 316L dade a ɛnyɛ den Industrial welded paipu no wɔ asiane ahorow pii a ahintaw, sɛnea edidi so yi:
(1) Adwennwen a ɛma nsu no mu paapae no taa ba wɔ weld toe no so .
Ade titiriw a ɛma adwennwen a ɛwɔ butt nkwaa no mu no fi welding no sorokɔ, ne in-situ stress a ɛwɔ weld toe a ɛwɔ butt joint no mu no yɛ kɛse kakra.
Nsusuiɛ a ɛwɔ stress index no mu ne weld height h, intersection angle θ a ɛwɔ weld toe no so ne ntwea so semi-warp r. Welding height H a ɛkɔ soro no ma angle θ no yɛ kɛse, na bo a ɛso tew no bɛma stress index no akɔ soro.
Dodow a weld no mu den no yɛ kɛse no, dodow no ara na adwennwen dodow no yɛ kɛse, nanso ahoɔden a ɛwɔ butt welding mu no so bɛtew. Sɛ welding wie a, fa ɔsorokɔ a ɛboro so no yɛ petee, sɛ ɛkorɔn sen butt weld no a, brɛ adwennwen no ase. Ɛtɔ mmere bi a ebetumi ama ahoɔden a ɛwɔ butt welding mu no ayɛ kɛse. Abɔnten so weld no wɔ sorokɔ kɛse a aka, a ɛde tube nsusuwii no bɛto asiane mu wɔ nhyɛso ntrɛwmu akyi.
Sɛ wɔtrɛw arc welded paipu a ɛyɛ tẽẽ no mu wɔ nhyɛso ase a, wɔde dade paipu a enni ano no kyekyere ho sɛnea benkum ne nifa akyi nkuku a ɛwɔ afã abien a ɛwɔ mu ɔfasu koro no ara ne dade paipu ntrɛwmu ho nkyerɛkyerɛmu biara nni hɔ. Enti, sɛ weld no mu den no sõ dodo, sɛ wɔtrɛw ne ntwemu mu a, shear stress a weld no fa no sɛ ɛyɛ mmerɛw sɛ 'small straight edges' wɔ weld kɛse no afã abien no nyinaa.
Nanso, adwuma mu osuahu ada no adi sɛ sɛ wɔde abɔnten weld reinforcement no di dwuma wɔ 2mm anaa nea ennu saa a, ɛnyɛ mmerɛw sɛ wobenya 'small straight edges' bere a wɔtrɛw nhyɛso no mu no. Pipe type no nyɛ mmerɛw sɛ wobɛhu amane. Eyi te saa efisɛ akyi weld no mu den no sua, na shear stress a butt weld no soa no nso sua. Sɛ saa shear stress yi wɔ ductile deformation no mu a, bere a wɔayi afi mu awie no, wɔyɛ resilience, na nsu paipu no bɛsan ayɛ nea ɛfata.
(2) weld seam a ɛwɔ mu no wɔ sorokɔ kɛse a aka, na ɛma ahoɔden ne ahoɔden a ɛsɛe wɔ nneɛma a wɔde fa nneɛma mu no yɛ kɛse.
Sɛ arc welded paipu a wɔde fa so no akyi no amfa anti-corrosion solution akata so a, welding seam no wɔ sorokɔ kɛse a aka, na frictional resistance a ɛwɔ transportation material no nso yɛ kɛse, a ɛbɛma ahoɔden a wɔde di dwuma wɔ transportation pipeline no mu no ayɛ kɛse.
(3) Abɔnten so welding no mu duru yɛ kɛse, na ɛnyɛ papa na amma nsu antɔ.
Sɛ wɔde epoxy resin laminated glass ntama no di dwuma ma anti-corrosion bere a wɔreyɛ adwuma no a, akyi weld seam no sorokɔ a ɛboro so no bɛma ayɛ den sɛ wobɛmia so denneennen wɔ weld toe no so. Bio nso, dodow a welding seam no kɔ soro na ɛsɛ sɛ wɔde anti-corrosion layer no yɛ kɛse no, dodow no ara na wɔde standard anti-corrosion layer no mu duru gyina weld seam no awiei so bu ho akontaa, na ɛma ɛka a wɔbɔ wɔ anti-corrosion ho no yɛ kɛse.
Sɛ wɔde toto mfiri a wɔde yi weld a ɛwɔ mu no ho a, ɛyɛ scraper type a ɛwɔ mu no ho a, . Hangao Tech (Seko Mfiri) no . Nneɛma a wɔde weld ayɛ a ɛyɛ petee a mframa ma ɛyɛ nwini no nni nsensanee pii wɔ dade paipu a ɛnyɛ den no mu fasu no so. Ne nnyinasosɛm a ɛyɛ adwuma ne sɛ wɔde mandrel a wɔasisi no bedi dwuma de ne rolling die no adi nkitaho de ayɛ rolling mpɛn pii mpɛn 30/min wɔ inner weld seam no so, sɛnea ɛbɛyɛ a weld seam ne base metal no bɛka abom kɛse na adwennwen no so atew.
Sɛ wowɔ ɔhaw ahorow a ɛte saa ara a, yɛsrɛ wo, kɔhwehwɛ mu. Yɛn ani gye paa sɛ yɛbɛbua ama wo.
