Kev txhim kho lub neej ntawm titanium yeeb nkab fittings tau dhau los ua qhov teeb meem kev kawm tseem ceeb hauv kev tsim tshuab raj xa dej.
Cov txheej txheem thawb lub luj tshib yog ib lub tshuab tshiab rau kev tsim cov luj tshib steel uas tau qhia los ntawm Nyiv hauv nruab nrab thiab lig 1980s. Vim tias cov txheej txheem tuaj yeem ua tiav kev tsim khoom tas mus li thiab tsim lub luj tshib nrog cov phab ntsa tuab, nws hloov pauv cov txheej txheem ib txwm ua. Northwest Institute of Nonferrous Metals tau ua tus thawj coj hauv kev txhim kho cov thev naus laus zis tshiab no thaum ntxov xyoo 1990 los txhim kho lub luj tshib seamless titanium. Peb tau ua tiav kev tsim seamless titanium yeeb nkab fittings xws li seamless titanium tees, seamless reducers, thiab lwm yam. Qhov loj tshaj plaws txoj kab uas hla ntawm seamless yeeb nkab fittings tuaj yeem ncav cuag Φ219 thiab ua tau raws li cov cai ntawm ASTM B363-95 tus qauv.
Kev ua haujlwm ntawm lub luj tshib titanium yog raws li seamless titanium raj raws li lub billet, thiab lub billet nrog ib txoj kab uas hla me dua cov khoom tiav yog siv los thawb thiab extrude lub billet ntawm lub laub extruder. Txoj kev tuag yog tsau rau ntawm lub tshuab tseem ceeb thiab muaj lub zog txav los thawb lub raj. Lub billet nce los ntawm sab xis mus rau sab laug. Lub billet yog rhuab thiab tiv thaiv thaum tsim pwm. Lub raj khoob yog nthuav thaum lub sij hawm tsim. Kev tsom xam ntawm lub zog thaum lub sij hawm tsim cov txheej txheem qhia tau hais tias qhov kev ntxhov siab ntawm qhov sib txawv yog txawv, tab sis lawv yog tag nrho Ob-txoj kev compression, thiab ib-txoj kev nro, uas yog, axial compression, radial compression, thiab circumferential nro.
Thaum lub sij hawm tag nrho cov txheej txheem deformation, txoj kab uas hla maj mam nce, khoov, thiab qhov ntev shortens thaum lub thickness tseem tseem tsis hloov. Cov txiaj ntsig ntawm kev sim siv txoj hauv kev network paub meej tias qhov deformation ntawm lub luj tshib thaum lub sij hawm tsim feem ntau tshwm sim hauv qis dua. Kos ib daim phiaj sib npaug ntawm qhov khoob. Nws tuaj yeem pom tias daim phiaj hloov me ntsis thaum tsim lub nraub qaum ntawm lub luj tshib. Thaum lub deformation ntawm lub plab yuav loj heev, daim phiaj yog elongated nyob ib ncig ntawm thiab compressed nyob rau hauv lub axial kev taw qhia, thaum tag nrho cov cheeb tsam ntawm daim phiaj tseem unchanged. , qhia tias tsis muaj kev hloov pauv tseem ceeb hauv kev coj ua thickness.
Cov qauv thiab specifications rau titanium yeeb nkab fittings nyob rau hauv peb lub teb chaws
Titanium yeeb nkab fittings qauv thawj zaug tshwm sim nyob rau hauv American aerospace qauv. Tib tus txheej txheem thoob ntiaj teb rau titanium yeeb nkab fittings hauv kev lag luam tshuaj yog ASTMB3635, uas tseem yog cov ntaub ntawv feem ntau ua raws li kev lag luam thoob ntiaj teb ntawm titanium tus qauv. ASTMB363 tau tsim nyob rau xyoo 1961, thiab thawj qhov kev hloov kho yog Xyoo 1978, nws tau hloov kho ntau zaus tom qab (xws li xyoo 1983, 1987). Cov ntawv tshiab tshaj plaws yog xyoo 1995, uas ua rau tus qauv ua tiav.
Xyoo 1994, kuv lub teb chaws tsim tus qauv Q/XB1507-94 "Titanium Butt Welding Seamless Pipe Fittings" los ntawm Northwest Institute of Nonferrous Metals. Nws tau txais tos txais tos los ntawm lub tuam tsev tsim qauv, thiab tus qauv no sawv cev rau kev pib ua qauv ntawm titanium yeeb nkab fittings hauv kuv lub teb chaws. Nws yog cov ntaub ntawv tseem ceeb rau kev tsim khoom, kev faib tawm, tsim, thiab kev tsim cov titanium yeeb nkab fittings hauv kuv lub teb chaws.
Txhawm rau ua kom tus qauv zoo dua coj tus qauv tsim, tsim, thiab xaiv, kev yuav khoom thiab xa tawm, kev teeb tsa, thiab kev tsim cov titanium yeeb nkab fittings hauv kuv lub tebchaws, kuv lub teb chaws Petroleum thiab Chemical Industry Bureau tau tshaj tawm "Titanium Butt Vuam Seamless Pipe Fittings" Kev lag luam tus qauv thaum Lub Xya Hli 13, 1999. Tus qauv, tus qauv no tau tsim los ntawm Northwest Nonferrous Metals Research Institute, tus qauv naj npawb yog HG/T3651-1999, thiab nws tau siv txij thaum Lub Rau Hli 1, 2000. Qhov ntev ntev ntawm cov yeeb nkab fittings teev nyob rau hauv cov qauv no yog tib yam li American Standard ANSIB16.9-1986 "Forged Steel Butt Vuam Fittings" thiab cov
Suav standard GB 12459-90 "Steel Butt Vuam Seamless Pipe Fittings". Qhov zoo ntawm cov yeeb nkab fittings yog sib npaug rau American Society for Testing and Materials standard ASTMB363-95 "Seamless and Seamed Titanium and Titanium Alloy Butt Welding Pipe Fittings".
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