Kev siv dav dav ntawm cov phab ntsa tuab seamless raj yuav 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 zoo ib yam, sib npaug thiab tsis muaj lumps thiab cua npuas. Ob sab 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 yuav ntsib transverse tawg. Muaj ntau qhov laj thawj rau qhov no. Kuv yuav muab cov lus qhia ntxaws 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. Lub sijhawm no, vim qhov tsis zoo deformation permeability, qhov nthuav dav ntawm sab nrauv yog ntau dua li ntawm cov 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 lub zog, lub hauv paus lub tensile kev nyuaj siab thiab cov ntxiv kev nyuaj siab yuav muab ntxiv ua ke, uas yuav tshaj lub compressive lub zog ntawm tuab-walled seamless steel raj, uas ua rau kab rov tav tawg ntawm lub puab. 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 kav yuav ua rau muaj kev cuam tshuam sab hauv. Yog li ntawd, nyob rau hauv zus tau tej cov tuab-walled seamless steel hlab, 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.
