Kev puas tsuaj ntawm ntau dhau weld seam qhov siab ntawm welded yeeb nkab

Nrog rau txoj kev loj hlob sai ntawm cov khoom zoo tshaj plaws nruam dov ntau lawm thiab kev nce qib ntawm vuam thiab tshuaj xyuas tshuab, qhov zoo ntawm welds tseem txhim kho, thiab muaj ntau thiab ntau hom welded kav, uas tau hloov seamless steel kav hauv ntau thiab ntau dua. teb.Nyob rau hauv cov txheej txheem ntawm cov yeeb nkab welded, lub vuam qhov cuab lub zog yog ib qho tseem ceeb nthuav dav.Kev siv vuam ntau dhau ntawm cov yeeb nkab welded muaj ntau yam phom sij, raws li hauv qab no:

Kev nyuaj siab corrosion tawg yog ib qho yooj yim rau tsim ntawm cov ntiv taw weld.Qhov kev ntxhov siab ntawm pob qij txha feem ntau yog tshwm sim los ntawm kev txhim kho weld.Rau qhov weld ntawm pob tw pob qij txha, kev ntxhov siab ntawm cov ntiv taw weld yog qhov loj.Qhov kev ntxhov siab concentration yog nyob ntawm qhov weld reinforcement h, lub weld ntiv taw suav nrog lub kaum sab xis θ thiab lub kaum sab xis r, qhov nce ntawm qhov vuam vuam h, qhov nce ntawm θ lub kaum ntse ntse, thiab qhov txo qis ntawm tus nqi r, uas yuav nce ntxiv. qhov kev nyuaj siab concentration factor.

Qhov siab dua qhov siab tshaj ntawm qhov vuam, qhov hnyav dua qhov kev ntxhov siab, thiab lub zog ntawm cov welded sib koom yuav raug txo.Tom qab vuam, qhov siab tshaj yuav tsum flattened.Tsuav qhov siab tshaj qhov siab tsis qis dua cov khoom siv hauv paus, qhov kev ntxhov siab tuaj yeem txo qis, thiab lub zog ntawm qhov sib koom ua ke tuaj yeem txhim kho qee zaum.

Qhov siab ntxiv ntawm sab nraud weld yog loj, uas cuam tshuam rau cov duab ntawm cov yeeb nkab tom qab hydraulic expansion.Thaum lub longitudinal submerged arc welded yeeb nkab yog nthuav los ntawm cov dej siab, cov yeeb nkab steel yog them los ntawm cov pwm txheej nrog tib lub puab kab noj hniav thiab qhov loj ntawm cov yeeb nkab steel.Yog li ntawd, yog hais tias lub zog ntawm cov weld loj dhau lawm, qhov kev nyuab siab shear thaum lub sij hawm nthuav dav ntawm lub vuam yuav loj heev, thiab "cov npoo me me" yog qhov yooj yim los tshwm rau ntawm ob sab ntawm cov weld.Kev paub dhau los qhia tau hais tias thaum qhov kev txhawb nqa ntawm cov weld sab nrauv yog tswj tau ntawm li 2 hli, cov dej yuav tsis muaj "me me ncaj ntug" tshwm sim thaum txoj kab uas hla tau nthuav dav, thiab lub raj zoo yuav tsis cuam tshuam.Qhov no yog vim hais tias qhov kev txhawb zog ntawm cov weld sab nraud yog me me, thiab qhov kev ntxhov siab ntawm cov welded sib koom kuj yog me me, tsuav yog qhov kev ntxhov siab ntawm cov shear yog nyob rau hauv lub elastic deformation ntau yam tom qab unloading, springback tshwm sim, thiab cov yeeb nkab yuav rov qab mus rau qhov qub. xeev.Internal weld seam yuav muaj qhov seem seem loj, uas yuav ua rau kom lub zog poob ntawm qhov nruab nrab conveying.Yog hais tias lub puab nto ntawm lub submerged arc welded yeeb nkab rau conveying yog tsis kho nrog anti-corrosion kev kho mob, thiab sab hauv weld seam muaj ib tug loj residual qhov siab, qhov kev sib txhuam tsis kam ntawm lub conveying nruab nrab kuj loj, uas yuav ua rau kom lub zog noj ntawm lub raj xa dej.

Qhov siab ntxiv ntawm sab nrauv weld seam tsis yog qhov zoo rau kev tiv thaiv corrosion.Yog tias cov ntaub iav epoxy siv los tiv thaiv corrosion thaum lub sijhawm ua haujlwm, qhov siab ntxiv ntawm cov txheej txheem weld seam yuav ua rau cov ntiv taw weld nyuaj rau nias kom ruaj khov.Nyob rau tib lub sijhawm, qhov siab dua qhov vuam seam, qhov tuab ntawm cov txheej txheem los tiv thaiv corrosion, vim hais tias Cov txheej txheem tau teev tseg tias cov thickness ntawm cov txheej txheem tiv thaiv corrosion yog ntsuas raws li qhov vertex ntawm cov txheej vuam seam, uas ua rau kom tus nqi tiv thaiv. - corrosion.Thaum lub sij hawm muab kauv submerged arc vuam, "ntses-rov qab-zoo li" txheej vuam seams feem ntau nws tshwm sim, uas ua rau nws nyuaj rau lav qhov zoo ntawm kev tiv thaiv corrosion.Yog li ntawd, kho nws kom zoo Qhov chaw ntawm lub taub hau vuam thiab vuam specifications kuj tseem ceeb heev los txo los yog tshem tawm cov "ntses-rov qab" ntawm lub vuam seam.


Post lub sij hawm: Jul-06-2021