I. Nānā Huahana
GB/T9948-2013ʻO ka paipu kila maʻemaʻe he kiʻekiʻe kiʻekiʻe ka maikaʻi o ka paipu kila maʻemaʻe i hoʻohana kūikawāʻia no ka hanaʻana i kaʻaila, a ua hoʻohana nuiʻia i nā mea nui e like me nā puʻupuʻu umu, nā mea hoʻololi wela a me nā paipu puʻupuʻu i loko o nāʻaila hinu. Hoʻoponopono koʻikoʻi kēia maʻamau i nā mea, ka hana hana a me nā koi o ka hana o nā paipu kila e hōʻoia i kā lākou hana paʻa ma nā wahi kiʻekiʻe-corrosion, kiʻekiʻe-mehana a me ke kiʻekiʻe.
2. Nā mea hana a me ka hana
1. Nā mea nui
GB/T9948-2013hana ʻia nā paipu kila maʻemaʻe ʻole me nā ʻano mea hoʻonaninani kiʻekiʻe, me:
Ke kila kila kila:20G, 20MnG, 25MnG
Ke kila kila:15MoG, 20MoG, 12CrMoG, 15CrMoG, 12Cr2MoG, 12CrMoVG, 12Cr3MoVSiTiB
Ke kila kila a me ke kila wela: 1Cr18Ni9, 1Cr18Ni11Nb
2. Hana nui
Kūleʻa wela kiʻekiʻe: He kūpono no nā kaʻina hana kiʻekiʻe e like me ka petroleum cracking (a hiki i 600 ° C a i ʻole).
ʻO ke kūpaʻa kiʻekiʻe: ʻO nā mea ikaika kiʻekiʻe e hōʻoia i ka hana palekana o nā pipeline ma lalo o nā kaiapuni kiʻekiʻe.
Ka pale ʻana i ka ʻino: ʻO nā ʻāpana huila kūikawā e pale pono i ka media corrosive e like me ka hydrogen sulfide a me carbon dioxide.
ʻO ka hilinaʻi kiʻekiʻe: ʻO ka mana koʻikoʻi koʻikoʻi e hōʻoia i ka hoʻokō ʻana o nā waiwai mechanical a me ka hui kemika o nā paipu kila i ka maʻamau GB / T9948.
3. Kaʻina hana
ʻO GB/T9948-2013 nā paipu kila maʻemaʻe ʻole e hana ʻia e ka ʻōwili wela a me ke kiʻi anu (rolling):
ʻO ke kaʻina hana ʻōwili wela: puʻupuʻu puʻupuʻu billet → hoʻomehana → perforation → kaʻa ʻana → ka nui ʻana → hoʻoluʻu → hoʻopololei → nānā maikaʻi → mālama.
Kaʻina hana kiʻi anu (kaʻa ʻana): ʻāʻī → pickling → kiʻi anu → mālama wela → hoʻopololei → ʻike hewa → māka → waiho.
ʻO nā kaʻina hana ʻelua e hōʻoia i ka pololei o ka dimensional kiʻekiʻe, ka ʻili laulima a me nā waiwai mechanical maikaʻi o nā paipu kila.
4. Nā kahua noi
Hoʻohana nui ʻia nā paipu ʻaila ʻaila GB/T9948 i:
ʻO ka ʻoihana Petrochemical: ʻāpana hakihaki, hydrogenation reactor, catalytic reforming equipment
ʻOihana hoʻomaʻemaʻe aila: nā paipu umu wela kiʻekiʻe, nā mea hoʻololi wela, nā pipeline kiʻekiʻe
ʻO ka lawe ʻana i ke kinoea kūlohelohe: pale i ka corrosion, kiʻekiʻe-pressure kinoea hoʻouna pipeline
ʻO ka hana ʻana i ka paila: nā pahu pahu mana, nā ʻōnaehana paila paila ʻoihana
5. Nā manaʻo kūʻai
Me ka hoʻomohala wikiwiki ʻana o ka ʻoihana petrochemical home a me ka ulu ʻana o ka noi mākeke honua, ke piʻi mau nei ka nui o ke kūʻai aku ʻana o GB / T9948 seamless steel pipes. ʻO kona kūpaʻa wela kiʻekiʻe maikaʻi loa a me ka pale ʻana i ka corrosion e lilo ia i mea paipu i makemake ʻia ma nā kula o ka ʻaila ʻaila a me ka hoʻomaʻemaʻe.
6. Hoʻomalu no ke kūʻai ʻana a me ka hoʻohana ʻana
Ke koho mea koʻikoʻi: E koho i ka mea kūpono GB/T9948 (e like me 12CrMoG, 15CrMoG, a me nā mea ʻē aʻe) e like me nā kūlana hana (ka mahana, kaomi, corrosiveness).
ʻO ka hōʻoia maikaʻi: E hōʻoia i ka hoʻokō ʻana o ka paipu kila i ka maʻamau GB / T9948-2013 a hāʻawi i kahi hōʻike nānā ʻekolu.
Ka hoʻouka ʻana a me ka mālama ʻana: E hōʻalo i ka pōʻino mechanical i ka wā o ka lawe ʻana a me ka hoʻokomo ʻana, a nānā mau i ka ʻino o ka pipeline a me nā kūlana paʻi.
ʻO GB / T9948-2013 paipu hoʻoheheʻe ʻaila i lilo i mea koho maikaʻi loa no ka petrochemical, hoʻomaʻemaʻe, kinoea maoli a me nā ʻoihana ʻē aʻe ma muli o kona mau pono o ke kūpaʻa wela kiʻekiʻe, ke kūpaʻa kiʻekiʻe a me ka pale ʻana i ka corrosion. ʻO ke kohoʻana i nā mea kūpono (e like me 12CrMoG, 15CrMoG, a me nā mea'ē aʻe) a me ka hahai pono i nā kūlana e hiki ai ke hōʻoia i ka hana palekana a paʻa o ka pipeline.
Hua'ōlelo:#Pula pohā ʻaila, #GB/T9948, #GB/T9948-2013 paipu kila ʻole, #Pipu kila māhā ʻaila, #12CrMoG, #15CrMoG, #Pūnaehana kiʻekiʻe a me ka paipu kila puʻe kiʻekiʻe, #Petrochemical pipeline
Ka manawa hoʻouna: Jun-09-2025
