I. Kakaretso ea Sehlahisoa
GB/T9948-2013phala ea tšepe e se nang seamless ke phala ea tšepe ea boleng bo holimo e sebelisoang ka ho khetheha bakeng sa ts'ebetso ea peterole ea peterole, 'me e sebelisoa haholo lisebelisoa tsa bohlokoa tse kang li-tubes tsa sebōpi, lisebelisoa tsa mocheso le liphaephe tsa khatello libakeng tsa ho hloekisa oli. Tekanyetso ena e laola ka thata thepa, ts'ebetso ea tlhahiso le litlhoko tsa ts'ebetso ea liphaephe tsa tšepe ho netefatsa ts'ebetso ea tsona e tsitsitseng libakeng tse phahameng, mocheso o phahameng le khatello e phahameng.
2. Lisebelisoa le ts'ebetso
1. Lisebelisoa tse ka sehloohong
GB/T9948-2013liphaephe tsa tšepe tse se nang seamless li entsoe ka lisebelisoa tse fapaneng tsa boleng bo holimo, ho kenyelletsa:
Mohaho oa tšepe oa carbon:20G, 20MnG, 25MnG
Alloy structural steel:15MoG, 20MoG, 12CrMoG, 15CrMoG, 12Cr2MoG, 12CrMoVG, 12Cr3MoVSiTiB
Tšepe e sa hloekang le tšepe e sa keneleng mocheso: 1Cr18Ni9, 1Cr18Ni11Nb
2. Ts'ebetso ea mantlha
Ho hanyetsa mocheso o phahameng: E loketse mekhoa ea mocheso o phahameng joalo ka ho phunyeha ha petroleum (ho fihlela ho 600 ° C kapa ho feta).
Ho hanyetsa khatello e phahameng: Lisebelisoa tse matla tse matla li tiisa ts'ebetso e sireletsehileng ea liphaephe tlas'a maemo a khatello e phahameng.
Corrosion resistance: Likarolo tse khethehileng tsa alloy li khona ho hanela mecha ea litaba e senyang joalo ka hydrogen sulfide le carbon dioxide.
Ho tšepahala ho phahameng: Taolo e tiileng ea boleng e tiisa hore thepa ea mochine le lik'hemik'hale tsa liphaephe tsa tšepe li finyella litekanyetso tsa GB/T9948.
3. Mokhoa oa tlhahiso
Liphaephe tsa tšepe tsa GB/T9948-2013 tse se nang moroalo li hlahisoa ka ho toloka ho chesang le ho batang (ho bilika):
Ts'ebetso e chesang ea ho bilika: li-round tube billet → futhumatsang → perforation → rolling → sizeing → pholiso → ho otlolla → tlhahlobo ea boleng → polokelo.
Mokhoa oa ho taka o batang (ho bilika): ho phunya → ho penta → ho penta ka mokhoa o batang → phekolo ea mocheso → ho otlolla → ho lemoha liphoso → ho tšoaea → polokelo.
Mekhoa ena ka bobeli e netefatsa ho nepahala ha boemo bo phahameng, bokaholimo bo boreleli le thepa e ntle ea mochini oa liphaephe tsa tšepe.
4. Libaka tsa kopo
GB/T9948 petroleum cracking pipes li sebelisoa haholo ho:
Indasteri ea petrochemical: yuniti ea ho qhekella, mochini oa hydrogenation, lisebelisoa tsa ntlafatso tsa matla
Indasteri ea ho hloekisa oli: li-tubes tsa mocheso o phahameng oa sebōpi, lisebelisoa tsa mocheso, liphaephe tse phahameng tsa khatello
Lipalangoang tsa khase ea tlhaho: liphaephe tse thibelang ho bola, lipeipi tsa phetisetso ea khase e phahameng haholo
Ho etsa li-boiler: li-boiler tsa seteishene sa matla, lipeipi tsa lipeipi tsa liindasteri
5. Litebello tsa 'maraka
Ka nts'etsopele e potlakileng ea indasteri ea petrochemical ea lapeng le kholo ea tlhoko ea 'maraka ea machabeng, thekiso ea liphaephe tsa tšepe tse se nang seam ea GB/T9948 e ntse e eketseha. Ho hanyetsa mocheso o phahameng o phahameng le ho hanyetsa ha kutu ho etsa hore e be thepa e ratoang ea liphaephe masimong a peterole ea ho phunyeha le ho hloekisa.
6. Litlhokomelo bakeng sa ho reka le ho sebelisoa
Khetho ea thepa e thata: Khetha thepa e nepahetseng ea GB / T9948 (e kang 12CrMoG, 15CrMoG, joalo-joalo) ho ea ka maemo a sebetsang (mocheso, khatello, ho senya).
Setifikeiti sa boleng: Netefatsa hore phala ea tšepe e kopana le maemo a GB/T9948-2013 le ho fana ka tlaleho ea tlhahlobo ea motho oa boraro.
Ho kenya le ho hlokomela: Qoba tšenyo ea mochine nakong ea lipalangoang le ho kenya, 'me kamehla u hlahlobe ho bola ha lipeipi le maemo a khatello.
GB/T9948-2013 petroleum cracking pipe e fetohile khetho e nepahetseng bakeng sa petrochemical, ho hloekisa, khase ea tlhaho le liindasteri tse ling ka lebaka la melemo ea eona ea ho hanyetsa mocheso o phahameng, ho hanyetsa khatello e phahameng le ho hanyetsa kutu. Ho khetha thepa e nepahetseng (e kang 12CrMoG, 15CrMoG, joalo-joalo) le ho latela ka tieo litekanyetso ho ka netefatsa ts'ebetso ea nako e telele e sireletsehileng le e tsitsitseng ea pipeline.
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Nako ea poso: Phup-09-2025
