Puku-weli flangeʻO ke anawaena o ka paipu a me ka mānoanoa o ka paia o ka hopena o ka interface, ua like ia me ka paipu e wili ʻia, a ua wili pū ʻia nā paipu ʻelua.Puku-weli flangemaʻalahi ka hoʻohana ʻana i ka pilina, hiki ke kū i ke kaomi nui. No ka meanā lepa i hoʻopaʻa ʻia, ʻaʻole like nā mea e like me nā pae like ʻole o ke kaomi. Mai nā pads asbestos puʻupuʻu haʻahaʻa, loaʻa nā pads asbestos kiʻekiʻe a hiki i nā pad metala. Ka hoʻomohala ʻana i ka wili kīflangei ka hana maoli a hoʻohana ʻia i nā ʻano like ʻole a me ke kaʻina hana a me ka hana ʻana, e like me ke ʻano ʻenehana a me ka loina, no nā ʻano like ʻole hiki ke loaʻa i ka waiwai nui a me ke kuleana o kekahi mea i hoʻohui ʻia i ka hana maoli, a laila e hoʻonui ai i nā hiʻohiʻona a me ka waiwai. o ke kalapona kila flange, hana maikaʻi i ka hoʻohana ʻana i nā ʻano a me ka waiwai. I ka pipeline ʻoihana, ʻoi aku ka nui o ka hoʻohana ʻana i ka pilina flange butt-welded ma Chengdu. I loko o ka hale, ua liʻiliʻi ke anawaena paipu, a ʻaʻole ʻike ʻia ka haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa e hoʻopili ana i nā flange. Inā ʻoe i loko o kahi lumi paila a i ʻole kahi kahua hana, aia nā paipu flanged a me nā huahana ma nā wahi āpau. Ma ke kaʻina hana maoli onā lepa i hoʻopaʻa ʻia, Hoʻohana ʻia kekahi mau palena ʻenehana a me nā koi no ka hana ʻana a me ka hoʻohana ʻana e hōʻoia i ka hoʻohana pono a me ka hoʻolaha ʻana e like me kekahi mau ʻano a me nā loina. Hoʻohana ko mākou mau hoa hana i kekahi mau ʻano ʻenehana a me nā loina no ka hana ʻana a me ka welding e hōʻoia i ka maikaʻi o ka pononā lepa i hoʻopaʻa ʻiai ka hoohana ana.

ʻO ka papa huahana a me nā koi ʻenehana onā lepa i hoʻopaʻa ʻiae hoʻokō me nā koi kūpono ma JB4726-4728. ʻO kanā kalaiwao ke kila kalapona a i ʻole austenitic stainless steel me ke kaomi nominal o 0.25MP-1.0MPa i kuhikuhi ʻia, a ua ʻae ʻia e hana ʻia me ka pae Ⅰnā kalaiwa. ʻO kanā kalaiwame ke kaomi nominal ma waena o 1.6Mpa a me 6.3Mpa e kūlike me nā koi maʻamau o ka forgings grade Ⅱ a i luna. No ka pale ʻana i ka flange me ke kaomi nominal ʻaʻole i emi iho ma mua o 10.0MPa, chromium molybdenum steel forgings me ka nominal pressure ma mua o 4.0MPa, ferrite steel forgings me ka nominal pressure i ʻoi aku ma mua o 1.6MPa a me ka mahana hana ʻaʻole iʻoi aku ma mua o -20 ℃, pono e hoʻokō ʻia kēlā mau flange forgings flat-welded. nā koi kūpono o ka papa Ⅲ forgings. Ma lalo o nā kūlana maʻamau, hana ʻia nā flanges butt-welded e ka forging a forging rolling technology. A inā ʻo ka hoʻohana ʻana i ka pā kila a i ʻole nā ​​​​mea kila ʻāpana no ka hana ʻana, pono ia e hoʻokō i kēia mau koi.
Puku-weli flangePono e hele ka hale hana i ka nānā ʻana i ka ultrasonic, ʻaʻole pono ka nānā ʻana i nā stratified defects. Ma ka ʻaoʻao o ka ʻōwili o ke kila e ʻoki ʻia i loko o nā ʻāpana, ma o ke kaʻina kulou e hoʻopili ʻia i loko o ke apo pōʻai, akā e hana pū i ka ʻili o ke kila e hana i ke apo cylinder, ʻaʻole hiki ke hoʻohana i ka mīkini paʻa kila. he ʻāʻī wiliwili ʻāʻī. No nā welds o ke apo, e lawe ʻia ke ʻano o ka weld komo piha. E hoʻokau ʻia nā welds o ke apo i ka mālama ʻana i ka wela ma hope o ka weld, a ma ka manawa like, e mālama ʻia ka 100% radio-inspection a i ʻole ultrasonic inspection, a ʻo nā hopena nānā radio-inspection e kūlike me nā koi kūpono o ka Papa II ma JB4730. E loaʻa nā hopena o ka nānā ʻana i ke kani ultrasonic o ka flange butt-welded. Pono e hoʻokō i nā koi o ka papa I maʻamau ma JB4730. ʻO nā ʻāʻī i hoʻopaʻa ʻia ma ka ʻāʻī, ʻoiai ʻaʻole nā ​​flanges palahalaha. Inā no nā kumu palekana, ʻoi aku ka maikaʻi o ka hoʻohana ʻana i ka welding butt. Inā he maʻamau maʻamau, ʻaʻole kiʻekiʻe ke kaomi, a ʻaʻole e hoʻopilikia ka leakage, hiki iā ʻoe ke noʻonoʻo e hoʻohana i ka welding flat.flange.