API 5L cov yeeb nkab hlau qhia txog

API 5Lfeem ntau yog hais txog cov kav dej hlau (cov kav dej yeeb nkab) ntawm kev siv tus qauv, cov kav dejyeeb nkab hlausuav nrog cov yeeb nkab hlau tsis muaj seamless thiab cov yeeb nkab hlau welded ob pawg. Tam sim no hauv cov kav dej roj peb feem ntau siv cov yeeb nkab hlau welded yeeb nkab hom kauv submerged arc welded yeeb nkab (SSAW), cov yeeb nkab uas txuas nrog submerged arc welded ncaj nraim (LSAW), yeeb nkab vuam tsis kam (ERW), cov yeeb nkab hlau tsis muaj seamlessfeem ntau yog siv rau hauv cov kav dej uas txoj kab uas hla tsawg dua 152 hli.

Cov yeeb nkab hlau GB/T 9711-2011 rau kev thauj mus los hauv kev lag luam roj thiab roj av tau muab tso ua ke raws li API 5L.

GB/T 9711-2011 qhia txog cov kev cai tsim khoom rau cov kav hlau tsis muaj qhov thiab cov kav hlau vuam ntawm ob qib kev qhia tshwj xeeb (PSL1 thiab PSL2) rau cov kav dej thauj mus los hauv kev lag luam roj thiab roj. Yog li ntawd, tus qauv tsuas yog siv rau cov kav hlau tsis muaj qhov thiab cov kav hlau vuam rau kev thauj mus los roj thiab roj, thiab tsis siv rau cov kav hlau cam khwb cia.

Cov Qib Hlau

Cov qib hlau ntawm cov khoom siv raw rau cov kav hlau ntawm tus qauv API 5L no yog GR.B, X42, X46, X52, X56, X60, X70, X80, thiab lwm yam. Cov qib hlau ntawm cov kav hlau sib txawv, thiab cov kev xav tau rau cov khoom siv raw thiab kev tsim khoom kuj sib txawv, tab sis cov pa roj carbon sib npaug ntawm cov qib hlau sib txawv raug tswj hwm nruj me ntsis.

 

Cov qauv zoo

Hauv cov qauv yeeb nkab API 5L, cov qauv zoo (lossis cov kev cai) rau cov yeeb nkab hlau tau muab faib ua PSL1 thiab PSL2. PSL yog ib lo lus luv rau qib kev qhia tshwj xeeb ntawm cov khoom.

PSL1 muab cov kev cai dav dav ntawm cov yeeb nkab zoo; PSL2 ntxiv cov kev cai yuav tsum muaj rau cov tshuaj lom neeg sib xyaw, cov tawv tawv, cov khoom muaj zog, thiab cov NDEs ntxiv.