Dab tsi yog qhov xwm txheej tam sim no ntawm cov kav dej?
Tam sim no, ntau yam khoom siv dej yog ntau ntau. Peb lub hom phiaj yog los ua kom paub cov kav dej tshiab sab hauv tsev thiab sab nraud, thiab qhia txog cov ntsiab lus ntawm cov ntawv thov uas yav dhau los. Cov hauv qab no yog cov ntsiab lus ntawm ob lub ntsiab lus loj ntawm cov chaw siv cov kav dej:
(1) Dej ciav dej sab nraud
Cov kav dej tawm sab nraud tuaj yeem faib ua ob pawg: cov kav hlau thiab cov kav hlau tsis yog hlau.
1, hlau raj
Tam sim no, cov kav dej tawm sab nrauv uas siv dav dav thiab siv los ua cov hlau xa thiab cov kav dej xa cov kav dej.
1.1 hlau yeeb nkab
Cov yeeb nkab muaj cov ntsiab lus ntawm cov hlua hlau txuas thiab cov yeeb nkab tsis muaj hlua; nyob rau hauv cov nqe lus ntawm anti-corrosion kev ua tau zoo, nws muaj peev xwm raug muab faib ua hom txheej tiv thaiv, kev tiv thaiv hom txheej txheem thiab kev ntxhib los mos; raws li phab ntsa thickness, muaj cov zoo tib yam steel yeeb thiab tuab hlau yeeb nkab.
Welded steel kav tau muab faib ua cov kab hauv hlua khi thiab welded steel hlau. Muab cov hlua khi hlua khi hlua khi rau cov khoom siv hauv cov kav dej thiab cov veled hlau txuas. Txoj hlua hlau txuas ncaj nraim yuav muab faib ua txuas ntxiv rau cov kav hlau txuas ncaj nraim thiab cov kav hlau tsis muaj hlua khi. Cov hlab ntsha seamless raug muab faib ua cov kub kub thiab kos xim (kos) raws li txoj kev raug tsim, thiab qhov tseeb ntawm nws yog muab faib ua cov zoo tib yam. Qhov txias-dov (rub) cov yeeb nkab muaj ib txoj kab diameter ntawm 200 hli thiab cov hlua kub kub muaj ib daim npav ntawm 600 mm. Seamless steel yeeb nkab kuj muaj steel hlau seamless steel yeeb nkab. Stainless hlau seamless steel yeeb nkab muab faib ua kub kub, kub extruded steel hlau seamless steel yeeb thiab txias heev (kos) stainless hlau seamless steel yeeb.
Yog tsis muaj kev tiv thaiv txheej txheem los yog tsis muaj kev sib tiv thaiv yeeb nkab, uas tau siv hu ua non-galvanized steel yeeb nkab (dub hlau yeeb nkab). Cov kev ntxhib los mos qauv yeeb nkab tsuas yog hais txog cov hlau tsis ruaj seamless yeeb nkab yeeb nkab thiab hlau tsis muaj fais fab hlau txuas. Nws tsis tau raug txhawb thiab siv los ntawm tus nqi thiab kev txuas hauv cov kav dej loj thiab nruab nrab.
Cov txheej txheem tiv thaiv (feem ntau yog hais txog sab hauv phab ntsa ntawm cov yeeb nkab) tam sim no muaj nyob hauv ib hom hlau tiv thaiv txheej txheem thiab ib hom kab uas tsis yog hlau thaiv. Cov hlau tiv thaiv txheej txheem feem ntau yog siv los ua ib txheej plating tiv thaiv txheej txheem thiab ib qho chaw siab tiv thaiv txheej txheem. Feem ntau siv nyob rau hauv txheej txheej txheej tiv thaiv txheej txheem yog cov raj yeeb nkab. Cov yeeb nkab kuj tseem muaj cov yeeb nkab tsis sib haum thiab cov yeeb nkab uas kub qis. Cov kub yeeb nkab uas tseem siv tau yog tseem dav siv vim nws txoj kev tiv thaiv ntom ntom ntom ntom ntom, kev ruaj khov thiab kev ruaj ntseg zoo. . Cov yeeb nkab-txias yog tsis ntom txaus thiab zoo li tsis muaj zog, thiab nws txoj kev ruaj ntseg yog pluag. Feem ntau, lub neej ua haujlwm tsawg dua 5 xyoos, nws yog xeb, thiab muaj "dej dawb" thiab "dej dub". Qhov tsis hnov tsw ntawm hlau yog loj heev, thiab txhua yam kab mob phem tshaj cov dej haus hauv lub teb chaws. Cov txheej txheem dej tau raug txwv nyob rau hauv cov dej hauv cov kav dej. Qhov txheej txheem tiv thaiv txheej txheem tiv thaiv txheej txheem dej kuj tseem muab faib ua ib qho kev sib txuas ntawm lub yeeb nkab thiab ib cov tshuaj tua blasting uas yog cov yeeb nkab uas muaj hlau txuas raws li cov khoom sib txawv, steel composite steel yeeb nkab thiab ib lub tooj liab-hlau sib xyaw hlau yeeb nkab. Lub cev txoj kev nplua yuav raug siv los mus nias rau cov cua sov uas muag los ntawm cov thawv cua sov los yog cov yeeb nkab-lossis-ntsa-phab ntsa tooj liab rau sab hauv cov phab ntsa ntawm steel hlau yeeb nkab los ntawm ib txoj kev. Cov kev qhia ntawm cov kav dej no yog DNl5-DN300 thiab DNl5-DNl50 feem. Lub cev npog hom sib xyaw hlau txuas yeeb nkab yog feem ntau txuas nrog tshwj xeeb accessories. Cov tshuaj blasting uas them cov yeeb nkab steel yeeb nkab muaj ib cov yeeb nkab sib txuas bimetallic.
Non-metallic tiv thaiv txheej hom muaj ob pawg: non-hlau coated hom thiab tsis-hlau meem hom. "Cov Kev Cai Tsim Kev Siv Dej Siv Khoom Siv Hlau-Plastics Pipeline Engineering" (CECSL25: 2001) (hu ua "Kev Cai Cov Khoom Uas Siv Hlau") Cov kav hlau muaj npe ua cov npe ntawm steel hlau, thiab cov ntaub ntawv yooj yim ntawm cov kav hlau uas kav hlau txuas nrog cov kav hlau txuas nrog cov yas hlau uas muab txuas nrog muab faib ua cov hlua khi hlua yas thiab cov nplaum yas rau hauv cov kav hlau. Raws li cov khoom sib txawv ntawm cov khoom siv hlau tsis sib haum, kev lag luam tam sim no cov qauv "dej-coated yas composite steel yeeb" (CJ / T120-2000) faib cov dej coated yas yeeb nkab rau polyethylene (PE) steel-composite yeeb nkab thiab epoxy resin. (EP) steel hlau yas yeeb nkab, qee lub tuam txhab kuj tsim tau ethylene-acrylic acid copolymer (EAA) steel-plastic composite yeeb nkab, "dej ntim yas hlua yas yeeb nkab yeeb nkab" (CJ / T136-2001) yeeb nkab ua rau polyethylene (PE), polyvinyl chloride nyuaj (PVC-U), cross-linked polyethylene (PEX), chlorinated polyvinyl chloride (CPVC) thiab polypropylene (PP) steel yeeb yas yeeb nkab. Cov khw ua cov hlau cais cov yeeb nkab cais rau peb hom: hom flange, groove type thiab thread hom ntawm cov yeeb nkab sib txuas sib txuas thiab cov khoom siv. Raws li cov cua kub ntawm lub txheej (sab hauv) txheej, nws muab faib ua dej kub-yas txig yeeb nkab thiab hluavtaws zoo tib yam hlau-yeeb nkab rau dej txias lossis dej txias. Tsis tas li ntawd, nyob ntawm txoj kev txheej txheem, muaj ntau hom kev sab nraud sab nrauv thiab puab txheej (grooved water-supply steel-plastic composite yeeb nkab, threaded water-supply steel-plastic composite yeeb nkab, thiab lwm yam) thiab sab hauv thiab sab nraud tag nrho- coated steel-plastic composite yeeb (flange) Hom dej muab hluav taws xob yas yeeb-yas sib txuas) qhov txawv. Raws li cov khoom siv hlau ntawm txheej txheej, cov hlua yas-txheej txheem cov yeeb nkab uas tau muab faib ua ib hom txheej sab nrauv, ib txheej txheej txheej thiab ib txheej sab galvanized aluminium alloy hom hlua yas yas yeeb nkab yas (cov chaw tsim tshuaj paus tseem hu ua hlau hlau alloy -cua sib txuas yeeb-tshuaj). Tsis tas li ntawd xwb, muaj ntau hom kev hnav cov plhaub hlaus. Tam sim no, polypropylene (PP) thiab polyvinyl chloride (PVC) kav dej muaj npe, tab sis lawv tsis paub tseeb hauv Cov Kev Qhia Specification rau Hlau Plastics. Hlau yeeb nkab kab yeeb nkab yog ib qho yeeb nkab zoo los tiv thaiv corrosion. Cov yeeb nkab hlais loj ntawm cov yeeb nkab steel hlau no yog DNl25-DN300, uas tsuas yog siv cov kav dej loj thiab nruab nrab.
Lub welded steel yeeb nkab rau kev thauj mus los low-pressure fluid thiab cov yeeb nkab uas tsis muaj hlua nrog galvanized kuj muaj qhov sib txawv ntawm cov yeeb nkab steel hlau thiab cov yeeb nkab tuab tuab. Rau cov kav hlau txuas cov hlau, qhov siab-txo lub peev xwm ntawm lub yeeb nkab phab ntsa yog tsim nyog nce, thiab tus nqi tseem yog tus nqi qis rau cov yeeb nkab yeeb nkab rau cov yeeb nkab yeeb nkab. Seamless steel yeeb nkab feem ntau yog pom nyob rau hauv phab ntsa thickness txawv nrog ntau cov qhab nia thiab cov khoom.
Peb paub hais tias lub zog ntawm cov hlau kav tau tuaj yeem ua rau siab sab hauv thiab sab nraud. Lub weldability ntawm lub yeeb nkab lub cev tswj kev tsim khoom ntawm ntau yeeb nkab fittings, thiab yog tshwj xeeb yog tsim rau pipelines nrog nyuaj terrain thiab high kev xav tau. Corrosion yog nws txoj kev poob haujlwm. Txawm li cas los xij, txoj kev tiv thaiv cov yeeb nkab ntawm sab hauv thiab sab nrauv yog siv kom zoo thiab lub neej kev pab kuj ntev heev. Raws li cov lus ceeb toom, ib lub taub ntim ntawm 1m ntawm Shanghai Yangshupu Dej Cog tau siv rau 60 xyoo thiab tseem zoo heev.
SHANDONG KANGYU YEEB NKAB MUAJ CO., LTD
Hu rau: Eillen
Email: kangyupipes@kangyugy.com
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