9711.1 Kauv Hlau Yeeb

Cov kav dej kauv yog siv rau cov roj thiab cov kav dej ntuj, thiab lawv cov kev qhia tshwj xeeb tau qhia los ntawm sab nraud * phab ntsa thickness.Kauv cov kav dej tuaj yeem welded ntawm ib sab lossis ob sab.Cov yeeb nkab welded yuav tsum xyuas kom meej tias qhov kev ntsuas dej siab, lub zog tensile ntawm cov vuam thiab qhov txias bending ua tau raws li qhov yuav tsum tau ua.

Txoj kev kho deg:
1. Kev ntxuav
Cov kuab tshuaj thiab emulsions yog siv los ntxuav cov hlau saum npoo kom tshem tawm cov roj, roj, plua plav, tus neeg sawv cev smoothing thiab cov organic teeb meem zoo sib xws, tab sis nws tsis tuaj yeem tshem tawm xeb, oxide nplai, vuam flux, thiab lwm yam. siv los ua ib qho kev ntsuas hauv kev tiv thaiv corrosion ntau lawm.

2. Cov cuab yeej tshem tawm xeb
Ua ntej, siv cov hlau txhuam thiab lwm yam cuab yeej los polish rau saum npoo ntawm cov hlau, uas tuaj yeem tshem tawm xoob lossis warped oxide nplai, xeb, vuam slag, thiab lwm yam. Cov cuab yeej siv tes tshem tawm xeb tuaj yeem ncav cuag qib Sa2, thiab cov cuab yeej hluav taws xob tuaj yeem ncav cuag. qib sa3.

3. Pickling
Feem ntau, ob txoj kev tshuaj thiab electrolysis yog siv rau pickling.Pipeline anticorrosion tsuas yog siv cov tshuaj pickling, uas tuaj yeem tshem tawm cov nplais oxide, xeb, thiab cov txheej qub.Qee zaum nws tuaj yeem siv los ua sandblasting thiab xeb tshem tawm.Kev tu tshuaj lom neeg tuaj yeem ua rau cov tsos mob mus txog qee qhov kev huv thiab roughness, tab sis nws cov qauv thauj tog rau nkoj yog ntiav, thiab nws yooj yim los ua paug rau qhov xwm txheej.

4. Txau (pov) kom tshem tawm xeb
Txau (nthuav) tshem tawm xeb yog lub zog muaj zog tsav lub tshuab txau (thaws) cov hniav kom tig ntawm qhov kub ceev, kom cov hlau grit, steel tua, hlau hlau seem, cov ntxhia thiab lwm yam abrasives yog sprayed (them) ntawm lub nto ntawm cov yeeb nkab steel nyob rau hauv cov nyhuv ntawm centrifugal quab yuam., Tsis tsuas yog tuaj yeem tshem tawm xeb, oxides thiab av, tab sis kuj tseem tuaj yeem ua rau cov yeeb nkab steel tuaj yeem ncav cuag qhov xav tau qhov nruab nrab roughness nyob rau hauv qhov cuam tshuam ntawm kev cuam tshuam hnyav thiab kev sib txhuam ntawm cov abrasive.
Tom qab txau (thaws) kom tshem tawm cov xeb, tsis tsuas yog tuaj yeem nthuav tawm cov nyhuv adsorption ntawm cov yeeb nkab saum npoo, tab sis kuj tseem muaj cov nyhuv adhesion ntawm cov txheej txheem tiv thaiv corrosion thiab cov yeeb nkab saum npoo tuaj yeem ntxiv dag zog.Yog li ntawd, tshuaj tsuag (nthuav) tshem tawm xeb yog ib qho zoo tagnrho xeb tshem tawm txoj kev rau pipeline anticorrosion.Feem ntau hais lus, txhaj tshuaj blasting (xuab zeb) tshem tawm xeb feem ntau yog siv rau kev kho cov yeeb nkab sab hauv thiab sab nraud, thiab kev tua blasting (xuab zeb) xeb tshem tawm feem ntau yog siv rau kev kho cov yeeb nkab.