Hauv ntiaj teb ntawm cov kav dej kev lag luam, cov cai thiab cov qauv tswj hwm cov ntaub ntawv siv yog qhov tseem ceeb rau kev ua kom muaj kev nyab xeeb, kev ruaj khov thiab kev ua tau zoo. Ib qho ntawm cov qauv no yogASTM A139, uas ua lub luag haujlwm tseem ceeb hauv kev tsim khoom thiab kev siv cov kav dej SAWH (spiral arc welded hollow) thiab cov kav dej welded. Hauv cov blog no, peb yuav tham txog qhov tseem ceeb ntawm ASTM A139, cov yam ntxwv ntawm cov kav dej SAWH, thiab qhov zoo ntawm Helical Welded Pipe hauv ntau yam lag luam.
ASTM A139 yog dab tsi?
ASTM A139 yog ib qho lus qhia tshwj xeeb uas tau tsim los ntawm American Society for Testing and Materials (ASTM) uas qhia txog cov kev cai rau cov yeeb nkab hlau electrofusion (arc) welded. Cov qauv no siv tshwj xeeb rau cov yeeb nkab siv los thauj cov kua thiab cov pa roj. Cov lus qhia no suav nrog ntau hom hlau thiab xyuas kom meej tias cov yeeb nkab tsim tawm ua tau raws li cov khoom siv kho tshuab thiab cov tshuaj lom neeg tshwj xeeb.
Tus qauv ASTM A139 yog qhov tseem ceeb rau cov chaw tsim khoom thiab cov kws ua vaj tse vim nws muab cov lus qhia txog cov txheej txheem tsim khoom, suav nrog cov txheej txheem vuam thiab cov kev ntsuas tswj xyuas zoo uas yuav tsum tau ua. Los ntawm kev ua raws li cov qauv no, cov chaw tsim khoom tuaj yeem ua kom ntseeg tau tias lawv cov khoom muaj kev ntseeg siab thiab haum rau ntau yam kev siv, los ntawm kev thauj mus los roj thiab roj av mus rau kev siv cov qauv tsev.
Lub luag haujlwm ntawm SAWH pipeline
Cov yeeb nkab SAWH lossis cov yeeb nkab hollow uas tau muab kauv sib txuas yog ib hom yeeb nkab uas tau muab kauv sib txuas ua los ntawm kev sib txuas cov hlau tiaj tiaj mus rau hauv cov duab cylindrical. Txoj kev tsim khoom no tso cai rau kev tsim cov yeeb nkab loj uas muaj zog thiab sib dua. Cov txheej txheem vuam kauv sib txuas siv rau hauvCov kav dej SAWH muaj ntau yam zoo, suav nrog:
1. Kev Siv Nyiaj Zoo:Cov txheej txheem tsim cov kav dej SAWH feem ntau pheej yig dua li cov txheej txheem ib txwm muaj, ua rau nws yog qhov kev xaiv zoo rau cov haujlwm loj dua.
2. KEV NTAU YAM:Cov yeeb nkab SAWH tuaj yeem tsim tau ntau qhov ntau thiab tsawg thiab tuab, ua rau nws haum rau ntau yam kev siv, suav nrog cov khoom siv dej, cov kab ke dej khib nyiab, thiab cov khoom siv hauv tsev.
3. Lub zog txhim kho:Kev tsim kho vuam sib txuas ua rau muaj zog ntxiv thiab tiv taus qhov siab sab nraud, ua rau SAWH yeeb nkab zoo tagnrho rau cov chaw muaj kev ntxhov siab siab.
Qhov zoo ntawm cov yeeb nkab vuam sib txuas
Cov yeeb nkab vuam uas muaj kauv yog lwm hom yeeb nkab vuam uas tsim los ntawm kev siv tshuab vuam kauv. Txoj kev no suav nrog kev qhwv ib daim hlau ncig lub mandrel thiab vuam nws ua ib lub kauv tas mus li.Helical Welded Yeeb Nkab muaj ntau yam zoo, suav nrog:
1. Cov yam ntxwv ntawm kev ntws zoo dua:Qhov du sab hauv ntawm Helical Welded Pipe txo qhov turbulence thiab txhim kho cov kua dej ntws, ua rau nws zoo tagnrho rau kev siv roj thiab roj av.
2. Txo qhov hnyav:Tus qauv tsim kauv ua rau cov phab ntsa nyias dua yam tsis muaj kev cuam tshuam rau lub zog, ua rau cov yeeb nkab sib dua thiab yooj yim dua rau kev tuav thiab thauj.
3. Qhov Ntev Uas Kho Tau:Cov Yeeb Nkab Helical Welded tuaj yeem tsim tau ntev dua, txo cov pob qij txha uas xav tau hauv cov yeeb nkab thiab txo qhov ua tau ntawm kev xau.
Xaus lus
Hauv kev xaus lus, ASTM A139 yog tus qauv tseem ceeb rau kev tsim cov yeeb nkab SAWH thiab cov yeeb nkab vuam sib txuas, kom ntseeg tau tias cov khoom tseem ceeb no ua tau raws li cov qauv kev nyab xeeb thiab kev ua tau zoo. Cov yam ntxwv tshwj xeeb ntawm SAWH thiab cov yeeb nkab vuam sib txuas ua rau lawv muaj txiaj ntsig zoo hauv kev lag luam xws li kev tsim kho mus rau lub zog. Raws li thev naus laus zis txuas ntxiv mus, qhov tseem ceeb ntawm kev ua raws li cov qauv tsim xws li ASTM A139 yuav tsuas yog loj hlob kom ntseeg tau tias cov khoom siv uas peb vam khom tseem muaj kev nyab xeeb thiab ua haujlwm tau zoo. Txawm hais tias koj yog tus kws ua vaj tse, tus neeg cog lus, lossis tus thawj tswj hwm qhov project, kev nkag siab txog cov qauv no thiab cov txiaj ntsig ntawm cov yeeb nkab no yog qhov tseem ceeb rau kev txiav txim siab txog koj cov haujlwm.
Lub sijhawm tshaj tawm: Kaum Ib Hlis-04-2024