Vuam tawg raws li qhov teeb meem loj tshaj plaws ntawm cov vuam tsis xws luag, cuam tshuam rau kev ua haujlwm thiab kev nyab xeeb thiab kev ntseeg siab ntawm cov qauv welded.Niaj hnub no, peb yuav coj koj los paub txog ib qho ntawm cov kab nrib pleb - laminated tawg.
01
Non-metallic inclusions, steel phaj nyob rau hauv cov txheej txheem dov yuav yog ib co non-metallic inclusions nyob rau hauv cov hlau, thiab lwm yam. (xws li sulfides, silicates) dov mus rau hauv ib tug band sib npaug zos rau cov kev taw qhia ntawm dov, uas ua rau muaj variability nyob rau hauv lub mechanical zog. steel, inclusions yog welded qauv los tsim laminar tearing ntawm tej yam tseem ceeb, tab sis kuj yog lub ntsiab yog vim li cas rau zus tau tej cov laminar tearing.
02
Kev nyuaj siab, vim lub vuam thermal voj voog, welded pob qij txha yuav tshwm sim quab yuam, rau ib tug muab dov tuab phaj T-zoo li tus thiab ntoo khaub lig pob qij txha, nyob rau hauv lub vuam tsis nyob rau hauv cov kev mob ntawm tib yam mob, muaj ib tug tseem ceeb kev nyuaj siab los yog dabtsi yog khoov. txwv tsis pub muaj zog, thaum ntau tshaj qhov nqi no yog tsim los tsim laminar tearing.
03
Diffusion ntawm hydrogen, hydrogen yog ib qho kev txhawb nqa ntawm kev tawg, vim yog diffusion ntawm hydrogen thiab ua ke rau hauv ib lub molecule kom cov kev ntxhov siab hauv zos nce siab heev, thaum hydrogen sib sau ua ke nyob rau hauv qhov kawg ntawm kev txhawb nqa ntawm non-metallic inclusions thiab hlau poob. ntawm adhesion, thiab yuav raug rub tawm cov neeg nyob sib ze inclusions nyob rau hauv cov hlau, nyob rau hauv lub puas ntawm hydrogen fracture yam ntxwv.
04
Cov khoom siv niam txiv, txawm hais tias kev sib koom ua ke yog qhov tseem ceeb ntawm laminar tearing, tab sis cov khoom siv ntawm cov hlau kuj muaj qhov cuam tshuam tseem ceeb ntawm laminar tearing.Cov yas tsis zoo ntawm cov hlau, qhov ntau dua yuav tawg nthuav dav, uas yog hais tias, tsis zoo rau laminar tearing.
Txhais nrog www.DeepL.com/Translator (dawb version)
Xinfa vuam cov cuab yeej muaj cov yam ntxwv zoo thiab tus nqi qis.Yog xav paub ntxiv, thov mus saib:Vuam & Txiav Manufacturers - Tuam Tshoj Vuam & Txiav Hoobkas & lwm tus neeg (xinfatools.com)
Txhawm rau tiv thaiv kev tsim ntawm laminar tawg, qhov tseem ceeb hauv kev tsim thiab kev tsim kho txheej txheem yog kom tsis txhob Z-kev taw qhia kev ntxhov siab thiab kev ntxhov siab, cov kev ntsuas tshwj xeeb yog raws li hauv qab no:
1. Txhim kho qhov kev sib koom ua ke kom txo tau qhov kev txwv tsis pub muaj zog.Cov kev ntsuas tshwj xeeb xws li: yuav ua rau arc phaj kawg txuas ntxiv ntawm qee qhov ntev, muaj txiaj ntsig tiv thaiv kev tawg;hloov lub vuam kev hloov pauv cov kev taw qhia ntawm lub vuam contraction kev nyuaj siab, ntsug arc phaj rau kab rov tav arc phaj, hloov txoj hauj lwm ntawm vuam, thiaj li hais tias qhov sib koom ua ke ntawm tag nrho cov kev taw qhia ntawm lub zog sib npaug zos rau cov dov txheej, tuaj yeem txhim kho zoo heev. kev ua tau zoo ntawm cov tshuaj tiv thaiv laminar tearing.
2. Kev siv cov txheej txheem vuam tsim nyog, kev siv cov txheej txheem qis hydrogen welding yog qhov zoo, xws li roj shielded vuam, submerged arc vuam txias tawg nyiam me me, yog qhov tsim nyog los txhim kho kev ua haujlwm ntawm kev tiv thaiv laminar tearing.
3. Kev siv cov khoom siv vuam tsis muaj zog, vuam hlau muaj qhov taw tes qis, siab ductility, yooj yim ua rau cov strain yog concentrated nyob rau hauv weld thiab txo qhov kub ntawm qhov chaw ntawm cov khoom siv hauv paus, tuaj yeem txhim kho kev ua haujlwm. ntawm anti-laminar tearing.
4. Hauv kev siv cov cuab yeej siv vuam, kev siv cov txheej txheem kev sib cais ntawm qhov chaw;symmetrical vuam, thiaj li hais tias cov strain faib yog sib npaug, txo cov strain concentration.
5. Txhawm rau tiv thaiv laminar tearing tshwm sim los ntawm qhov txias txias, peb yuav tsum sim peb qhov zoo tshaj plaws los siv qee yam kev ntsuas los tiv thaiv qhov txias txias, xws li kev txhim kho preheating thiab tswj qhov kub ntawm interlayer, thiab lwm yam. Tsis tas li ntawd, peb kuj tuaj yeem siv txoj kev daws kev ntxhov siab. xws li intermediate annealing.
6. Peb kuj tuaj yeem tswj tau qhov loj ntawm qhov vuam, siv cov vuam me me, cov txheej txheem vuam ntau.
Txhais nrog www.DeepL.com/Translator (dawb version)
Post lub sij hawm: Aug-24-2023
