Kev siv dav dav ntawmtuab-walled seamless rajyuav tsum ua raws li kev tiv thaiv corrosion thiab tiv thaiv xeb ua haujlwm. General anti-corrosion ua hauj lwm yog muab faib ua peb txheej txheem:

1. Kev tiv thaiv xeb ntawm cov kav dej.

Ua ntej pleev xim, qhov saum npoo ntawm cov kav dej yuav tsum tau ntxuav cov roj, slag, xeb, thiab zinc plua plav. Cov khoom lag luam tus qauv yog Sa2.5.

2. Tom qab kev kho los tiv thaiv xeb rau ntawm qhov chaw ntawm lub raj xa dej, thov pleev xim rau sab saum toj, thiab lub sijhawm nruab nrab ntawm lawv yuav tsum tsis pub tshaj 8 teev. Thaum siv lub topcoat, lub hauv paus saum npoo yuav tsum qhuav thiab lub topcoat yuav tsum yog ib yam, sib npaug thiab tsis muaj lumps thiab cua npuas. Ob tog ntawm cov yeeb nkab yuav tsum tsis txhob txhuam hauv qhov ntau ntawm 150 ~ 250mm.

3. Tom qab lub topcoat tau qhuav thiab solidified, siv cov xim thiab ntim cov ntaub fiberglass, thiab lub sij hawm ntawm lub topcoat thiab cov xim yuav tsum tsis txhob ntau tshaj 24 teev.

Cracking ntawm tuab-walled seamless steel raj:

Nyob rau hauv tag nrho daim ntawv thov txheej txheem ntawm tuab-walled seamless steel raj, nto tej zaum ntsib transverse tawg. Muaj ntau qhov laj thawj rau qhov no. Kuv yuav muab cov ncauj lus kom ntxaws rau koj hauv qab no.

Yog hais tias lub tuab-walled seamless raj yog tsawg deformed thaum lub sij hawm tag nrho cov txheej txheem, lub puab thiab sab nrauv yuav ua rau muaj kev nyuaj siab ntxiv nyob rau hauv lub compressive puab rub. Nyob rau lub sijhawm no, vim qhov tsis zoo deformation permeability, qhov nthuav dav ntawm sab nrauv yog ntau dua li ntawm txheej sab hauv, yog li cov txheej sab nrauv yuav ua rau muaj kev ntxhov siab ntxiv, thiab sab hauv sab hauv yuav ua rau muaj kev ntxhov siab ntxiv. Yog hais tias qhov ntxiv tensile kev nyuaj siab nyob rau hauv lub puab nto muaj ib tug zoo kawg nkaus lub zog, lub hauv paus ntawm tensile kev nyuaj siab thiab ntxiv zuj zus kev nyuaj siab tuaj yeem muab ntxiv ua ke, uas yuav dhau lub zog compressive ntawm tuab-walled seamless steel raj, uas ua rau kab rov tav tawg ntawm sab hauv. nto.

Raws li cov qauv kev sib txuas ntawm cov qauv siv tshuab, txo ntau yam ntawm cov yas deformation thaum lub sij hawm tsim khoom thiab ua cov yeeb nkab tuab-walled seamless steel yeeb nkab yuav ua rau muaj kev cuam tshuam sab hauv cov kab nrib pleb. Yog li ntawd, nyob rau hauv zus tau tej cov tuab-walled seamless steel raj, quenching zoo. Nws yog ib qho tseem ceeb heev kom tshem tawm alkaline brittleness.

Ntxiv nrog rau qhov kev ntxhov siab ntxiv radial, muaj kev ntxhov siab ntxiv radial thaum lub sij hawm tag nrho cov txheej txheem de-lifting. Cov kab nrib pleb ntev yog tshwm sim los ntawm kev ntxhov siab ntxiv radial tensile induced thaum lub sij hawm nchuav.