1. Kev faib tawm los ntawm kev tsim khoom:
(1) Seamless tubes - txias drawn tubes, extruded raj, txias dov raj.
(2) Welded yeeb nkab:
(a) Kev faib tawm los ntawm cov txheej txheem - gas shielded welded yeeb nkab, arc welded yeeb nkab, tsis kam welded yeeb nkab (siab zaus, tsawg zaus).
(b) Raws li vuam seam - ncaj seam welded yeeb nkab, kauv welded yeeb nkab.
2. Kev faib tawm los ntawm phab ntsa thickness - nyias-walled steel kav, tuab-walled steel kav
3. Kev faib tawm los ntawm cov khoom siv:
(1) 304 stainless hlau dej yeeb nkab
(2) 304L stainless hlau dej yeeb nkab
(3) 316 stainless hlau dej yeeb nkab
(4) 316L stainless hlau dej yeeb nkab
Txoj kev sib txuas
1. Clamping hom kev sib txuas ---------Nws muab faib ua ib qho clamping thiab ob chav clamping. Ob chav clamping yog txoj kev sib txuas ruaj khov tshaj plaws. Siv radial shrinkage sab nraud quab yuam (hydraulic clamp) kom clamp cov yeeb nkab fittings ntawm cov yeeb nkab, thiab ua tiav cov txiaj ntsig kev sib txuas los ntawm dej nres ntawm O-ring. Yooj yim rau kev khiav lag luam, zoo sealing, thiab tsis tuaj yeem disassembled.
2. Kev sib txuas ntawm lub nplhaib nthuav dav ---------Siv radial contraction sab nraud quab yuam (hydraulic clamp) los tuav cov yeeb nkab fittings ntawm cov yeeb nkab, thiab ua tiav cov txiaj ntsig kev sib txuas los ntawm cov dej nres ntawm lub nplhaib roj hmab dav. Cov yeeb nkab yog detachable. Cov txheej txheem kev teeb tsa ntxiv lub nplhaib dov convex ntawm cov yeeb nkab kawg; sealing kev ua tau zoo yog qhov nruab nrab thiab tus nqi ntawm cov yeeb nkab fittings yog siab.
3. Vuam kev sib txuas---------Siv cov txheej txheem kub yaj los txuas ob qhov txuas kom ua tiav qhov kev sib txuas. Kev sib txuas lub zog yog siab, thiab kev tiv thaiv cov roj welding ntawm qhov chaw vuam sib txuas yog qhov nyuaj kom ua tau raws li tus qauv, ua rau cov vuam xeb yooj yim, ncaj qha txo cov kev pab cuam lub neej ntawm cov kav dej; qhov kev txhim kho zoo yog nyob ntawm tus welder cov kev txawj ntse, thiab qhov zoo yog qhov nyuaj kom ruaj khov.
4. Kev sib txuas ntawm tus kheej - thawj zaug siv rau kev sib txuas me me ntawm cov yas hose, tsis muaj cov cuab yeej xav tau, kev teeb tsa ceev. Sab hauv ntawm lub interface yog yooj yim rau loosen thiab xau, thiab sealing kev ua tau zoo tsis zoo.
