Cov yeeb nkab hlau tsis muaj qhov sib txuas yog ib yam khoom tseem ceeb uas siv dav hauv ntau qhov chaw. Nws cov txheej txheem tsim khoom tshwj xeeb ua rau cov yeeb nkab hlau tsis muaj vuam, muaj cov khoom siv kho tshuab zoo dua thiab tiv taus compressive, tsim nyog rau cov chaw muaj kev kub siab thiab kub siab.

Hais txog cov xwm txheej siv, cov kav hlau tsis muaj seamless feem ntau siv rau hauv cov teb xws li kev thauj mus los roj thiab roj, kev lag luam tshuaj lom neeg, kev tsim kho, kev tsim nkoj thiab kev lag luam tsheb. Tshwj xeeb tshaj yog nyob rau hauv kev lag luam roj thiab roj, cov kav hlau tsis muaj seamless feem ntau siv rau cov kav dej thiab cov khoom siv downhole, thiab tuaj yeem tiv taus cov xwm txheej ib puag ncig hnyav.

Hais txog cov qauv, cov kav hlau seamless feem ntau yog tsim thiab kuaj raws li cov qauv hauv tebchaws (xws li GB, ASTM, API, thiab lwm yam).GB/T 8162siv tau rau cov kav hlau tsis muaj seamless rau cov qauv, thaumASTM A106feem ntau yog siv rau cov kav dej carbon steel seamless rau kev pabcuam kub siab. Rau cov kav dej hlau alloy seamless, cov qauv feem ntau suav nrogASTM A335, thiab cov qib sawv cev yog P5 thiab P9 kom ntseeg tau tias cov kav hlau ua haujlwm ntawm qhov kub thiab txias tshwj xeeb.

Hais txog cov ntaub ntawv, cov yeeb nkab hlau tsis sib xyaw feem ntau siv cov hlau tsis sib xyaw thiab cov hlau tsis sib xyaw siab, nrog kev tiv thaiv corrosion zoo heev, tiv thaiv kub siab thiab tiv thaiv oxidation. Piv txwv li, cov ntaub ntawv siv feem ntau rau cov yeeb nkab hlau sib xyaw suav nrog Cr-Mo hlau sib xyaw (xws li 12Cr1MoG thiab lwm yam), uas tsim nyog rau cov khoom siv kub thiab siab xws li boilers thiab cov khoom hloov pauv cua sov. Cov ntaub ntawv no tau dhau los ntawm kev kho cua sov thiab kev tshuaj xyuas kom ntseeg tau tias lawv ruaj khov thiab muaj kev nyab xeeb nyob rau hauv cov xwm txheej hnyav.

Cov kav hlau tsis muaj qhov sib txuas, tshwj xeeb yog cov kav hlau tsis muaj qhov sib txuas, ua lub luag haujlwm tseem ceeb hauv kev lag luam niaj hnub no. Lawv cov khoom tsim tawm raws li tus qauv thiab cov ntaub ntawv zoo ua rau lawv yog qhov kev xaiv zoo tshaj plaws rau ntau yam kev siv engineering.