Spiral Welded Carbon Steels Pipe Bakeng sa Metsi Line Tubing
1. Utloisisa spiral welded carbon steel pipe:
Spiral welded carbon steel pipee entsoe ka moea le ho chesetsoa ka likhoele tsa tšepe.Mokhoa o ikhethang oa tlhahiso o etsa hore liphaephe tsena li be matla le ho tšoarella, li khone ho mamella likhatello tse phahameng tsa ka hare le tsa ka ntle.Bokhoni ba ho hanela kutu le ho senyeha ho boetse ho etsa hore e tšoanelehe bakeng sa mefuta e mengata ea likopo, ho kenyeletsoa liphaephe tsa metsi le lipeipi tsa tšepe.
Standard | Kereiti ea tšepe | Sebopeho sa lik'hemik'hale | Thepa ea tensile | Teko ea Charpy Impact le Teko ea ho theola boima ba 'mele | ||||||||||||||
C | Si | Mn | P | S | V | Nb | Ti | CEV4) (%) | Rt0.5 Mpa Ho hlahisa matla | Rm Mpa Tensile Matla | Rt0.5/ Rm | (L0=5.65 √ S0 )Elongation A% | ||||||
max | max | max | max | max | max | max | max | Tse ding | max | min | max | min | max | max | min | |||
L245MB | 0.22 | 0.45 | 1.2 | 0.025 | 0.15 | 0.05 | 0.05 | 0.04 | 1) | 0.4 | 245 | 450 | 415 | 760 | 0.93 | 22 | Teko ea phello ea Charpy: Matla a ho monya matla a 'mele oa liphaephe le seam ea weld e tla lekoa joalo ka ha ho hlokahala maemong a mantlha.Bakeng sa lintlha, sheba maemo a mantlha.Teko ea ho theola boima ba 'mele: Sebaka sa boikhethelo sa ho kuta | |
GB/T9711-2011 (PSL2) | L290MB | 0.22 | 0.45 | 1.3 | 0.025 | 0.015 | 0.05 | 0.05 | 0.04 | 1) | 0.4 | 290 | 495 | 415 | 21 | |||
L320MB | 0.22 | 0.45 | 1.3 | 0.025 | 0.015 | 0.05 | 0.05 | 0.04 | 1) | 0.41 | 320 | 500 | 430 | 21 | ||||
L360MB | 0.22 | 0.45 | 1.4 | 0.025 | 0.015 | 1) | 0.41 | 360 | 530 | 460 | 20 | |||||||
L390MB | 0.22 | 0.45 | 1.4 | 0.025 | 0.15 | 1) | 0.41 | 390 | 545 | 490 | 20 | |||||||
L415MB | 0.12 | 0.45 | 1.6 | 0.025 | 0.015 | 1)2)3 | 0.42 | 415 | 565 | 520 | 18 | |||||||
L450MB | 0.12 | 0.45 | 1.6 | 0.025 | 0.015 | 1)2)3 | 0.43 | 450 | 600 | 535 | 18 | |||||||
L485MB | 0.12 | 0.45 | 1.7 | 0.025 | 0.015 | 1)2)3 | 0.43 | 485 | 635 | 570 | 18 | |||||||
L555MB | 0.12 | 0.45 | 1.85 | 0.025 | 0.015 | 1)2)3 | Puisano | 555 | 705 | 625 | 825 | 0.95 | 18 | |||||
Hlokomela: | ||||||||||||||||||
1)0.015 ≤ Altot < 0.060;N ≤ 0.012;AI—N ≥ 2—1;Cu ≤ 0.25;Ni ≤ 0.30;Cr ≤ 0.30;Mo ≤ 0.10; | ||||||||||||||||||
2)V+Nb+Ti ≤ 0.015% | ||||||||||||||||||
3) Bakeng sa limaraka tsohle tsa tšepe, Mo e ka ≤ 0.35%, tlas'a konteraka. | ||||||||||||||||||
Mong Cr+Mo+V Ke+Ni 4)CEV=C+6 + 5 + 5 |
2. Lithapo tsa metsi:
Litsamaisong tsa kabo ea metsi, phano e sireletsehileng le e sebetsang ea metsi a hloekileng e bohlokoa.Spiral welded carbon steel pipe e ipakile e le khetho e tšepahalang bakeng sa liphaephe tsa metsi ka lebaka la thepa ea eona e hananang le kutu.Sebaka se boreleli sa lipeipi tsena se fokotsa ho hohlana, ho netefatsa hore metsi a phalla kamehla le ho fokotsa moferefere.Ho feta moo, matla a tlhaho le ho tšoarella li tiisa ts'ireletso khahlanong le ho lutla, ho robeha, le ho se atlehe ha sebopeho, ho netefatsa phepelo ea metsi e tsoelang pele, e tšepahalang.
3. Ho cheselletsa lipeipi tsa tšepe:
Indasteri ea tjheseletsa e itšetlehile haholo ka spiral welded carbon steel pipe bakeng sa lisebelisoa tse fapaneng.Matla a ikhethang le ho feto-fetoha ha liphaephe tsena li etsa hore e be tse loketseng bakeng sa ho cheselletsa lipeipi tsa tšepe.Hore na ho aha litanka tse kholo tsa polokelo, lipeipi tse tsamaisang oli le khase, kapa likarolo tsa meralo maemong a indasteri, lipeipi tsa tšepe tsa spiral welded carbon li bapala karolo ea bohlokoa.Ho tšoana ha manonyeletso a cheselitsoeng ho tiisa ho ts'epahala le polokeho ea sebopeho, ho fokotsa tlhoko ea ho lokisoa khafetsa kapa ho lokisoa.
4. Melemo le melemo:
4.1 Tharollo e theko e boima: Pipe ea tšepe ea Spiral welded carbon e fana ka tharollo e theko e boima bakeng sa phala ea metsi le tjheseletsa ea lipeipi tsa tšepe.Ho tšoarella ha bona le ho hanyetsa ha kutu ho netefatsa bophelo bo bolelele ba ts'ebeletso, ka hona ho fokotsa litšenyehelo tsa ho nchafatsa le ho li lokisa.
4.2 Ho bonolo ho kenya: Theknoloji ea spiral welding e sebelisoang ha ho etsoa tlhahiso e ka hlahisa liphaephe tse telele le tse tsoelang pele, ho fokotsa tlhokahalo ea ho kopanya khafetsa.Moralo ona o bonolo o nolofatsa mokhoa oa ho kenya, o boloka nako le boiteko.
4.3 Mefuta-futa: Liphaephe tsa tšepe tsa Spiral welded carbon li fumaneha ka mefuta e fapaneng ea li-diameter le botenya, tse li lumellang hore li ikamahanye le lisebelisoa tse fapaneng.Li ka etsoa ho latela litlhoko tse khethehileng tsa morero, ho ikamahanya le mefuta e fapaneng ea maro, likhatello le mocheso.
4.4 Tšireletso ea tikoloho: Tšepe ea carbon ke thepa e ka sebelisoang hape e tlatsetsang ho boloka tikoloho.Spiral welded carbon steel pipes e ka sebelisoa hape le ho sebelisoa hape, ho fokotsa litšila le ho sireletsa mehloli ea tlhaho.
Ha re phethela:
Bokhoni le melemo ea spiral welded carbon tšepe liphaephe ka phala ea metsi letjheseletsa peipi ya tšepee ke ke ya nyenyefatsa.Phetiso e sebetsang hantle le e tšepahalang ea metsi le maro a indasteri a itšetlehile haholo ka ho tšoarella ha tsona, ho hanyetsa kutu le boiketlo ba ho kenya.Ha tlhokahalo ea meralo ea motheo e matla le e baballang chelete e ntse e eketseha, lipeipi tsa tšepe tsa spiral welded carbon li tla lula e le karolo ea bohlokoa ho netefatsa hore tsamaiso ea metsi le mekhoa ea indasteri e sebetsa ka thelelo lefatšeng ka bophara.