1.Welded steel kavrau kev thauj mus los ntawm cov dej tsis tshua muaj siab (GB / T3092-1993) kuj hu ua cov kav dej dav dav, feem ntau hu ua cov kav dej dub.

Nws yog ib qho welded steel yeeb nkab rau kev xa cov dej qis qis xws li dej, roj, cua, roj thiab cua sov chav thiab lwm yam. Cov kav hlau tau muab faib ua cov kav hlau zoo tib yam thiab cov kav hlau tuab raws li phab ntsa tuab; Raws li daim ntawv ntawm cov yeeb nkab kawg, lawv tau muab faib ua cov kav hlau tsis muaj hlau (cov kav dej du) thiab cov kav hlau threaded. Qhov tshwj xeeb ntawm cov yeeb nkab steel yog qhia los ntawm nominal txoj kab uas hla (mm), uas yog kwv yees ntawm lub puab kab. Nws yog kev cai los nthuav tawm hauv nti, xws li 11/2. Ntxiv nrog rau kev siv ncaj qha los thauj cov kua dej, welded steel kav rau kev thauj mus los ntawm cov dej tsis tshua muaj siab kuj tau siv dav raws li cov kav dej qub ntawm cov kav dej galvanized welded steel kav rau kev thauj cov kua dej tsawg.

2. Galvanized welded steel yeeb nkab rau kev thauj mus los ntawm cov kua dej qis (GB/T3091-1993) tseem hu ua galvanized electric welded steel yeeb nkab, feem ntau hu ua cov yeeb nkab dawb.

Kub-dip galvanized welded (lub qhov cub welded los yog hluav taws xob welded) steel kav rau kev xa dej, roj, roj cua, cua sov chav dej, dej sov thiab lwm yam dej ntws los yog lwm lub hom phiaj. Cov kav hlau hlau tau muab faib ua cov kav dej zoo tib yam galvanized steel kav thiab cov kav dej tuab galvanized raws li phab ntsa tuab; Raws li daim ntawv ntawm cov yeeb nkab kawg, lawv tau muab faib ua cov yeeb nkab uas tsis yog threaded galvanized steel thiab threaded galvanized steel kav. Qhov tshwj xeeb ntawm cov yeeb nkab steel yog qhia los ntawm nominal txoj kab uas hla (mm), uas yog kwv yees tus nqi ntawm lub puab kab.

3. Ordinary carbon steel hlau casing (GB3640-88) yog cov yeeb nkab steel siv los tiv thaiv cov xov hlau hauv cov khoom siv hluav taws xob xws li cov tsev lag luam thiab pej xeem, kev teeb tsa ntawm cov tshuab thiab cov khoom siv.

4. Ncaj seam hluav taws xob welded steel yeeb nkab (YB242-63) yog cov yeeb nkab steel nrog cov vuam seam thaum uas tig mus rau txoj kab ntev ntawm cov yeeb nkab steel. Feem ntau muab faib ua metric fais welded steel yeeb nkab, hluav taws xob welded nyias-walled yeeb nkab, transformer txias roj yeeb nkab thiab lwm yam.

5.Kauv seam submerged arc welded steel yeeb nkabrau kev thauj mus los ntawm cov kua dej (SY5036-83) yog ua los ntawm kub dov steel strip coils raws li lub raj blanks, feem ntau muab kauv tsim ntawm qhov kub thiab txias, thiab welded los ntawm ob sab submerged arc vuam. Nws yog siv rau kev thauj mus los ntawm cov kua dej. Kauv seam steel yeeb nkab. Cov yeeb nkab steel muaj lub zog siab bearing muaj peev xwm thiab zoo vuam kev ua tau zoo. Tom qab ntau yam kev soj ntsuam nruj thiab kev sim, nws muaj kev nyab xeeb thiab txhim khu kev ntseeg siv. Txoj kab uas hla ntawm cov yeeb nkab steel yog loj, kev thauj mus los efficiency siab, thiab kev nqis peev hauv kev tso cov kav dej tuaj yeem txuag tau. Feem ntau yog siv rau cov kav dej rau kev thauj cov roj thiab cov nkev.

6. Kauv seam high-frequency welded steel yeeb nkab rau pressurized fluid thauj mus los (SY5038-83) yog ua los ntawm kub dov steel kauj raws li ib tug raj dawb paug, feem ntau spirally tsim nyob rau hauv kub, thiab welded los ntawm high-frequency lap welding. Nws yog siv rau kev thauj mus los ntawm cov kua dej. Kauv seam siab zaus welded steel yeeb nkab. Cov yeeb nkab steel muaj lub zog siab muaj peev xwm thiab cov yas zoo, uas yooj yim rau vuam thiab ua haujlwm. Tom qab ntau yam kev soj ntsuam nruj thiab kev tshawb fawb thiab kev sim, nws muaj kev nyab xeeb thiab txhim khu kev qha siv. Feem ntau yog siv rau kev tso cov kav dej rau kev thauj cov roj, cov pa roj, thiab lwm yam.

7. Feem ntau, cov spiral seam submerged arc welded steel yeeb nkab (SY5037-83) rau cov dej tsis tshua muaj siab conveying yog ua los ntawm kub dov steel kauj raws li lub raj dawb paug, uas yog feem ntau spirally tsim, thiab yog ua los ntawm ob-sided tsis siv neeg. submerged arc vuam los yog ib sab welding. Submerged arc welded steel kav rau kev thauj mus los tsis tshua muaj siab xws li dej, roj, cua thiab chav.

8. Kauv seam high-frequency welded steel yeeb nkab (SY5039-83) rau kev siv cov dej tsis tshua muaj siab conveying yog ua los ntawm kub dov steel coil raws li lub raj dawb paug, feem ntau spirally tsim ntawm qhov kub thiab txias, thiab welded los ntawm high-frequency lap welding. rau kev siv cov kua dej uas tsis tshua muaj siab. Seam siab zaus welded steel yeeb nkab.

9. Kauv welded steel kav rau pawg (SY5040-83) yog ua los ntawm kub dov steel coils raws li lub raj blanks, feem ntau tsim los ntawm sov spirals, thiab ua los ntawm ob-sided submerged arc vuam los yog high-frequency welding. Lawv yog siv rau kev tsim kho vaj tse, wharfs, choj thiab lwm yam hauv paus pawg nrog cov kav hlau.