Composite steel yeeb nkab yog tsim los ntawm ob (lossis ntau dua) cov ntaub ntawv ua ke rau hauv ib qho los ntawm kev siv thev naus laus zis tshwj xeeb kom nws muaj cov yam ntxwv zoo sib deev cov yeeb nkab steel tshiab.Txij li thaum xyoo 1960, Nyiv, Tebchaws Meskas, Lub Tebchaws Yelemees, United Kingdom thiab lwm lub tebchaws tau txuas ntxiv qhov tseem ceeb rau kev tsim cov yeeb nkab steel sib xyaw, cov khoom siv hlau sib txuas hauv lub zog, kev tsim khoom, tshuaj lom neeg, roj av thiab tshuab thiab lwm yam kev lag luam tau dav dav. siv.
Composite steel yeeb nkab yog tsim los ntawm ob (lossis ntau dua) cov ntaub ntawv ua ke rau hauv ib qho los ntawm kev siv thev naus laus zis tshwj xeeb kom nws muaj cov yam ntxwv zoo.
Txij li thaum xyoo 1960, Nyiv, Tebchaws Meskas, Lub Tebchaws Yelemees, United Kingdom thiab lwm lub tebchaws tau txuas ntxiv qhov tseem ceeb rau kev tsim cov hlau sib xyaw.PTFE lined yeeb nkab, composite steel yeeb nkab khoom nyob rau hauv lub zog, shipbuilding, tshuaj, roj av thiab machinery thiab lwm yam teb tau lug siv.Composite steel tube ua tshuab feem ntau suav nrog dov, casting, extrusion, brazing, vuam thiab lwm yam.
- 1.Kev siv ntau yam ntawm cov yeeb nkab steel sib xyaw
Kev sib xyaw ua ke ntawm ob hom ntawm ib txheej cov ntaub ntawv ntawm cov yeeb nkab sib xyaw ua ke yog nyob ntawm daim ntawv thov thiab cov yam ntxwv ib puag ncig.Cov yeeb nkab steel yooj yim muaj lub zog siab thiab rigidity, tus nqi qis thiab kev ua haujlwm zoo.Cov yeeb nkab npog steel yuav tsum yog cov hardness siab thiab muaj peev xwm tiv thaiv corrosion ntawm ib puag ncig nruab nrab.Cov txheej no tuaj yeem nyob rau hauv txheej txheej ntawm cov yeeb nkab steel sib xyaw (sab hauv cov yeeb nkab) lossis hauv txheej txheej (cov yeeb nkab sib txuas sab nraud). zoo yeeb nkab, boiler, khib incinerator nrog ntau lub raj, yeeb nkab rau tshav kub exchanger, nrog hnav tsis kam, corrosion resistance qauv nrog ntau lub raj thiab architectural kho kom zoo nkauj yeeb nkab, thiab lwm yam. yeeb nkab yuav raug ncua mus rau ntau daim ntawv thov teb.
- 2. Ntau lawm txoj kev ntawmcomposite steel yeeb nkab
Cov kav hlau puas tuaj yeem muab faib ua ob hom, bimetallic thiab ob txheej txheej, raws li kev sib xyaw ua ke ntawm kev sib cuag ntawm ob hom steel kav.Cov yeeb nkab steel sib txuas nrog kev sib txuas ntawm sab hauv thiab txheej txheej txuas nrog metallurgical bonding degree yog hu ua bimetallic yeeb nkab, thaum qhov kev sib cuag ntawm sab hauv thiab txheej txheej tsuas yog ncav cuag cov neeg kho tshuab kev sib txuas, thiab cov yeeb nkab steel sib txuas nrog cov ntu ntev thiab txheej sib cais. yog hu ua ob txheej yeeb nkab.Muaj ntau ntau txoj hauv kev los tsim cov kav dej sib xyaw, txhua tus muaj nws tus yam ntxwv thiab daim ntawv thov.
- 2.1 Cov txheej txheem ua haujlwm kub
Nyob rau hauv txoj kev no, zoo tib yam carbon steel billet yog siv los ua cov txheej txheem hlau, qhov chaw nruab nrab yog drilled, thiab stainless hlau los yog npib tsib xee alloy pas nrig yog siv los ua txheej sab hauv.Sab nrauv lav lub cev lub cev ntawm cov yeeb nkab sib xyaw, cov yeeb nkab sab hauv corrosion yuav tsum, thaum lub bar thiab billet nto tom qab lub puab qhov nto huv si, yuav bar embedded billet qhov ntawm cov yeeb nkab, vuam foob kawg ntawm lub raj billet, siv qib. ntawm qis zaus induction kauj los tswj cov cua sov, tom qab tau rhuab mus rau qhov kub thiab txias, nyob rau hauv 1 600 t kub punch ntawm ntsug hydraulic xuas nrig ntaus tshuab, yeeb nkab billet nyob rau hauv lub voj perforation hom thiab axial compressed ntsuas lub voj voog perforation, tom qab thermal perforated raj billet, bar. thiab cov ntaub ntawv hauv paus rau metallurgical ua ke.Cov txheej txheem no yog siv los ntawm Tubacex, lub tuam txhab Spanish extruded steel yeeb nkab, los tsim cov kav dej sib xyaw nrog cov kab sab nraud ntawm 60 · 3 thiab 219 · Imm.Qhov tuab ntawm cov yeeb nkab tiv thaiv corrosion feem ntau yog 10% mus rau 0% ntawm tag nrho cov tuab ntawm cov yeeb nkab sib txuas, feem ntau ntawm 2 cm thiab 1 cm ntawm qhov tsawg kawg nkaus.
- 2.2 Composite steel phaj vuam txoj kev
Txoj kev no tuaj yeem siv los tsim cov kav dej sib xyaw ua ke rau cov roj thiab cov kav xa hluav taws xob nrog cov kab uas loj dua 300mm.Cov hlau phaj sib xyaw tau dov rau hauv cov raj xa dej los ntawm UO txheej txheem, thiab tom qab ntawd welded rau hauv txoj kab ntev.Cov txheej txheem ntws ntawm cov yeeb nkab steel sib xyaw ua los ntawm cov qauv no yog raws li hauv qab no: longitudinal seam vuam - cov yeeb nkab nthuav dav - kev kho cua sov ntawm steel ntawv i-jo forming billet.
- 2.3 Cov txheej txheem txias diffusion annealing
Tube billets ntawm cov ntaub ntawv sib txawv yog ua rau hauv txias-dov los yog txias-draw seamless raj raws.Ib qho tshwj xeeb low-melting intermediate txheej nyias txoj siv yog qhov txhab nyob ib ncig ntawm sab nraud ntawm lub puab txheej ntawm lub raj billets.Tom qab kos duab txias, high-temperature diffusion annealing yog nqa tawm.Cov yam ntxwv ntawm kev sib xyaw steel kab yeeb nkab haum tsim los ntawm cov txheej txheem no yog qhov sib koom ua ke yog qhov pom tseeb thiab txawm tias.Vim tias qhov sib ntxiv ntawm cov hlau tsis tshua muaj melting point ntawm ob qhov kev sib txuas sib txuas, nws lub zog ruaj khov yog qhov siab, feem ntau ntau dua 300MPao.Qhov qis melting point hlau gasket khoom feem ntau yog Ni - P alloy, thiab nws melting point kub txo nrog qhov nce ntawm cov ntsiab lus ntawm P. Lwm cov gaskets yog B (1, 4Wt%), Si (txog 9Wt%), cr (txog 30Wt%) hlau - los yog ni-raws li alloys.Lub melting point ntawm cov khoom siv gasket yuav tsum qis dua li ntawm lub hauv paus txheej thiab lub raj sab hauv.Cov yeeb nkab steel sib xyaw ua los ntawm cov txheej txheem no tuaj yeem tiv thaiv kev sib tsoo, thiab nws qhov tseeb qhov tseeb thiab qhov zoo ntawm qhov chaw tuaj yeem ua tau raws li tus qauv yuav tsum tau ua.
Post lub sij hawm: Apr-21-2016