Longitudinal submerged arc vuam (LSAW) cov kav dej tau dav siv hauv kev tsim cov roj thiab cov kav dej, cov nroj tsuag petrochemical, thiab lwm yam kev siv hauv kev lag luam. Cov kav dej no yog tsim los siv cov hlau zoo thiab muaj nyob hauv ntau qib thiab cov qauv nyob ntawm lawv qhov kev siv tshwj xeeb.
Nov yog cov qib thiab cov qauv ntawm LSAW cov kav dej ntau tshaj plaws:
1. API 5L: Qhov no yog tus qauv siv dav tshaj plaws rau LSAW kav dej hauv kev lag luam roj thiab roj. Tus txheej txheem qhia txog qhov yuav tsum tau ua rau kev tsim khoom ntawm ob theem kev qhia tshwj xeeb (PSL 1 thiab PSL 2) ntawm seamless thiab welded steel kav siv rau hauv cov kav dej thauj mus los hauv kev lag luam roj av thiab roj av.
2. ASTM A252, ASTM A252: Cov qauv no suav nrog seamless thiab welded steel kav siv hauv kev tsim cov piling thiab sib sib zog nqus hauv paus daim ntaub ntawv. Cov kav dej no yog siv rau hauv kev tsim vaj tsev thiab txuas hniav, nrog rau kev siv hauv kev sib sib zog nqus, xws li drilling platforms thiab subsea pipelines.
3. ASTM A139 Cov khoom lag luam: Cov qauv no suav nrog seamless thiab welded steel kav siv nyob rau hauv high-temperature applications, xws li chav boilers, siab hlab ntsha, thiab petrochemical nroj tsuag. Cov kav dej no tseem siv tau rau hauv cov ntawv thov kub qis, xws li cryogenic thiab tub yees tshuab.
4. TIAB SA 2458: Qhov no yog tus qauv German rau LSAW cov kav dej siv hauv kev siv engineering. Tus txheej txheem qhia txog cov txheej txheem kev xa khoom rau cov kav hlau welded ua los ntawm cov hlau tsis muaj hlau nrog cov khoom tshwj xeeb.
5. TS EN 10025: Qhov no yog European tus qauv rau LSAW cov kav dej siv hauv kev tsim cov tsev thiab cov qauv. Tus txheej txheem qhia txog qhov yuav tsum tau ua rau kub-kuav los tiag steel khoom ua los ntawm non-alloyed steels.
