Vim li cas cov pa roj carbon steel kav siv cov roj thiab roj kev lag luam?
Cov roj carbon cov roj steel yog tsuas yog siv rau hauv cov roj thiab roj kev lag luam kom thauj cov roj av, cov roj roj thiab ua kom huv, siab tsis kam thiab kev lag luam. API 5L tus qauv Pipeline kav tuaj yeem tiv thaiv kom muaj kev kub siab thiab cuam tshuam ntawm kev thauj mus los ntev. Cov pa roj carbon kav hlau muaj kev ua tau zoo heev vuam thiab yog ib qho yooj yim tsim thiab txuas rau ntawm qhov chaw. Ib qho ntxiv, los ntawm kev ntxiv cov tshuaj tiv thaiv corrosion (xws li 3PE) lossis Cathodic tiv thaiv, lawv lub neej pabcuam hauv cov chaw hnyav tuaj yeem txuas ntxiv. Piv nrog stainless hlau lossis alloy kav dej, carbon hlau kav yog pheej yig dua thiab haum rau kev tso cai loj.
Cov neeg siv lub ntsiab siv cov pa roj carbon hlau yog dab tsi hauv kev tsim kho?
Hauv kev tsim kho, Carbon Cov kav hlau feem ntau siv rau cov qauv kev txhawb nqa (xws li cov qauv hlau), scaffolding thiab dej siv thiab dej nqus. Q235b welded kav yog dav siv nyob rau hauv cov chaw ua haujlwm ib ntus (vim yog lawv tus nqi qis thiab kev ua tau yooj yim. Galvanized cov pa roj carbon steel kav yog siv nyob rau hauv cov hluav taws sprinkler system thiab sab nraum zoov tus saib xyuas kom tiv thaiv xeb. Lig-inch muab kauv kav hlau welded tuaj yeem siv rau tsev pawg lossis cov yeeb nkab hauv av. Qhov ntau yam ntawm cov kev qhia tshwj xeeb ntawm cov kav dej steel hlau (xws li cov kav dej steel thiab cov kav dej) tseem ua rau lawv haum rau cov laj thawj zoo nkauj.
Cov ntaub ntawv thov ntawm cov pa roj carbon cov pa hluav taws xob dab tsi rau kev tsim tshuab?
Cov kev lag luam tshuab siv cov roj hlau steel tsim ua cov phuam ua hluav taws xob, kheej kheej kheej kheej, cov hau ris thiab lwm qhov chaw. Cov kav dej seamless ntawm 20 # lossis 45 # steel muaj cov khoom lag luam siab tom qab ua kom txias txias. Kev lag luam automotive siv carbon cov kav hlau ua kom tso cov kav dej tso tawm) thiab cov chassis txheej txheem. Tshuab cov lus qhia kev sibntsuam thiab kis tau tus kab mob yuav tsum muaj kev kub siab, thiab cov xaim hluav taws xob nruab nrab-cov kav dej kub feem ntau siv. Tsis tas li ntawd, conveyor rollers thiab sprocket nkhaus kuj cia siab rau ntawm kev coj tsis kam thiab vag roj carbon steel.
Dab tsi yog qhov tshwj xeeb yuav tsum muaj rau cov roj steel hlau hauv cov rwj thiab siab?
Cov kav boiler hais tias yuav tsum tau tiv thaiv kub thiab kub siab, thiab tus qauv steelless steel ntawm AT106 lossis GB 5310 cov qauv feem ntau raug xaiv, nrog cov khoom ntawm 20G lossis 16mn. Kev tswj nruj thiab cov ntsiab lus phosphorus yog qhov yuav tsum tau los tiv thaiv kev kub ntxhov siab, thiab kev sim ultrasonic yuav tsum ua kom ntseeg tau tias tsis muaj qhov tsis xws luag. Cov kav dej rau cov hlab ntsha siab yuav tsum tau ua raws li cov asme sa {5}} qauv, hais txog kev ntsuas vuam. Qee qhov xwm txheej xav tau sab hauv phab ntsa polishing kom txo cov nruab nrab hauv nruab nrab.
Yuav ua li cas xaiv cov pa roj teeb steel nyob rau hauv kev ua liaj ua teb?
Galvanized welded kav (xws li dn 15- dn200) feem ntau yog siv hauv kev ua liaj ua teb vim tias lawv tus nqi qis thiab tiv taus me corrosion. Thin-walled erw kav tuaj yeem siv rau lub tshuab tsis muaj zog, thaum thickened seamless kav dej yuav tsum muaj rau sprinkler cov tshuab siab siab. Rau cov kav dej faus, nws raug nquahu kom siv cov kav dej dub (Ungalvanized) nrog kev tiv thaiv asphalt rau kev tiv thaiv corrosion, lossis pe hawm nyuj sib tiv thaiv. Qhov rigidity ntawm cov pupbon hlau yog tsim rau kev txhawb nqa hauv av thiab kev teeb tsa, tab sis kev tshuaj ntsuam puas yuav tsum tau los tiv thaiv xeb thiab perforation.
