Daim ntawv puas ntawm LSAW steel yeeb nkab nto

LSAW steel yeeb nkabyog tsim los ntawm txheej txheej txheej ntawm nyias thiab muaj zog ruaj khov ntawm nplua chromium-nplua nuj oxide zaj duab xis (tiv thaiv zaj duab xis), los tiv thaiv kev nkag mus txuas ntxiv ntawm oxygen atoms, rau oxidation, thiab nkag mus rau kev tiv thaiv corrosion.Yog tias muaj qee qhov laj thawj, zaj duab xis no yog qhov kev puas tsuaj tas mus li, huab cua lossis kua oxygen lossis hlau atoms yuav txuas ntxiv nkag mus rau cov hlau atom tawm ntawm qhov kev soj ntsuam tas li ntawm kev tsim cov hlau oxide, hlau nto corrosion yuav tas li.Qhov no nto zaj duab xis nyob rau hauv daim ntawv ntawm ntau yam kev puas tsuaj, ntau ntau nyob rau hauv lub neej txhua hnub yog summarized raws li nram no:

1 LSAW steel yeeb nkab nto deposit khoom nrog rau lwm cov hlau uas muaj plua plav hais los yog heterogeneous hlau fixtures nyob rau hauv cov huab cua ntub, thiab stainless hlau fixtures ntawm condensate, ob qho tib si ua ke rau hauv lub micro-roj teeb, ua rau hluav taws xob tshuaj tiv thaiv, tiv thaiv zaj duab xis puas, hu nws tias electrochemical corrosion.

2 Cov yeeb nkab ncaj saum npoo adhesion organic kua txiv (xws li zaub, kua zaub, hnoos qeev, thiab lwm yam), oxygen nyob rau hauv cov ntaub ntawv dej, tsim cov organic acids, organic acids ntev yog corrosion ntawm hlau nto.

3 LSAW steel yeeb nkab nto adhesion nrog acid, alkali, ntsev (xws li phab ntsa kho kom zoo nkauj lye, txiv qaub splash), ua rau lub zos corrosion.

4 nyob rau hauv ib tug muaj kuab paug (uas muaj ib tug loj tus naj npawb ntawm sulfide, carbon dioxide, nitrogen oxide cua), cov ntaub ntawv ntawm condensed dej los tsim sulfuric acid, nitric acid, acetic acid tov point, ua rau cov tshuaj corrosion.

Daim ntawv thov ntau yam ntawm LSAW

covLSAW steel yeeb nkab txoj kab uas hla nyob rau hauv thaj tsam ntawm 406 ~ 1600mm, nyob rau hauv exceptional mob txawm ntau, qhov ratio ntawm phab ntsa thickness thiab txoj kab uas hla ntawm 0.06 mus rau 0.08.Niaj hnub nimno txawv teb chaws tshuab tuaj yeem tsim cov yeeb nkab mus txog 100mm phab ntsa tuab ntawm cov yeeb nkab.

Kev tsim khoom ntawm steel phaj lossis LSAW steel yeeb nkab tsuas yog ob peb txoj hauv kev, lub hauv paus ntsiab lus sib txawv yog txoj hauv kev ntawm kev tsim cov yeeb nkab steel, cov yeeb nkab steel tom qab tsim cov txheej txheem ua raws li qhov tseem ceeb.Cov txheej txheem txheej txheem ntawm kev tsim cov vuam yog nyob ntawm kev faib cov hlau, raws li kev faib cov kav dej rau vuam ob hom qauv: ncaj seam thiab kauv seam steel yeeb nkab.Raws li qhov no, ncaj seam welded yeeb nkab ntau lawm rau hauv kev tsim khoom thiab kev tsim cov kauv seam yeeb nkab.Ncaj seam thiab kauv seam steel yeeb nkab feem ntau siv txoj kev yog submerged arc vuam (SAW), nws zoo zoo, siab productivity, technology yog mature thiab ruaj khov.Tam sim no, ncaj seam steel yeeb nkab dav siv txawv teb chaws raws li nram no: huab cua av thiab hiav txwv thauj, dej thiab roj trunk pipelines;thauj cov tshuaj thiab cov khoom siv tshuaj lom neeg ntawm cov hlau tsis muaj steel raj;marine industrial qauv nrog lub raj;boiler manufacturing thiab tshwj xeeb lub hom phiaj yeeb nkab structural raj.