Loj Diameter Stainless Hlau Washers

Lub attenuation ntawm txhua yam khoom ntawm Loj Diameter Stainless Hlau Washers nyob rau hauv qhov kub thiab txias yog ib qho tseem ceeb rau lawv xaiv. Lawv tus cwj pwm kub hnyiab tau cuam tshuam ncaj qha rau lub sijhawm ntev - sealing kev ua tau zoo ntawm bolted kev sib txuas hauv thermal cycles. Raws li ASTM E139 xeem txoj kev rau creep so ntawm cov ntaub ntawv hlau, nyob rau hauv tej yam kev mob ntawm 350 degrees Celsius thiab ib tug thawj compressive kev nyuaj siab ntawm 200 MPa, qhov kev ntxhov siab so tus nqi ntawm 316L stainless hlau tom qab nruam loading rau 1,000 teev yog hais txog 12% ntawm tus nqi pib, uas yog, cov residual kev nyuaj siab tseem nyob ntawm txog 7 MPa. Qhov kev ntxhov siab no yog qhov txaus los xyuas kom meej tias qhov kev sib khi tshwj xeeb ntawm lub flange kev twb kev txuas saum npoo tsis qis dua qhov tseem ceeb ntawm tus qauv tsim. Raws li qhov siab - qhov kub thiab txias tso cai rau kev ntxhov siab ntawm cov ntaub ntawv hauv Volume II, Tshooj D ntawm ASME Boiler thiab Pressure Vessel Code, qhov kev ntxhov siab tso cai ntawm 316L stainless hlau ntawm 400 degrees Celsius yog 69 MPa, uas yog kwv yees li 60% ntawm chav tsev kub ntawm 115 MPa. Yog li ntawd, qhov tsim ntawm loj-kab gaskets Lub thickness yuav tsum tau nce kom tsim nyog raws li kev khiav hauj lwm kub. Feem ntau, cov thickness yuav tsum tau nce los ntawm 10% mus rau 15% rau txhua txhua 100 degrees Celsius nce ntxiv kom them rau qhov txo qis ntawm cov khoom tawm los ntawm qhov kub thiab txias thiab xyuas kom meej tias lub gasket muaj qhov kev nyab xeeb txaus nyob rau hauv kev sib txuas ntawm siab -kub yeeb nkab flanges thiab kub exchanger hau.

Raws li kev sib koom ua ke ntawm qhov kub thiab txias ib puag ncig thiab hloov pauv, qhov cuam tshuam toughness thiab qaug zog tiv thaiv ntawm loj - txoj kab uas hla stainless hlau ntxhua khaub ncaws tau dhau los ua cov cim tseem ceeb uas txiav txim siab lawv qhov kev siv tau. Raws li ASTM E23 Charpy impact test method, qhov cuam tshuam absorbed zog ntawm 316L stainless hlau tseem tuaj yeem ncav cuag ntau tshaj 200 joules ntawm cov kua nitrogen kub ntawm rho tawm 196 degrees Celsius, qhia tau hais tias nws cov qauv austenite tsis dhau ductile - mus rau - nkig hloov nyob rau hauv cryogenic tej yam kev mob. Cov yam ntxwv no ua rau lub gasket no haum rau flange kev sib txuas ntawm liquefied natural gas cia tso tsheb hlau luam thiab cov cuab yeej cua sib cais. Raws li ASTM E466 axial fatigue xeem txoj kev, ib tug loj - txoj kab uas hla gasket nrog ib tug tuab ntawm 6 mm thiab ib tug txheej txoj kab uas hla ntawm 180 mm yog raug rau ib tug cyclic load nrog ib tug kev nyuaj siab amplitude ntawm 120 MPa. Tom qab ob lab lub voj voog, tsis muaj cov kab nrib pleb tshwm sim nyob rau saum npoo ntawm lub gasket los yog ntug ntawm lub qhov sab hauv. Nws qaug zog txwv yog kwv yees li 43% ntawm tensile zog ntawm 280 MPa. Lub tshuab ntxhua khaub ncaws yog muab nrog concentric annular grooves ntawm cov kabmob nto hauv kev sib cuag nrog lub taub hau ntsia liaj qhov rooj, nrog qhov tob ntawm 0.1 hli thiab qhov sib nrug ntawm 0.5 hli, raws li DIN 946 kev sib txhuam coefficient ntsuas txoj kev, qhov microstructure no tuaj yeem ua rau muaj kev sib txhuam coefficient ntawm cov kabmob nto nyob rau hauv cov kev sib txhuam qhuav. rotation loosening tshwm sim los ntawm lateral vibration. Nyob rau tib lub sijhawm, qhov zawj kuj tuaj yeem ua kom haum raws li cov roj av, muab kev sib txhuam ruaj khov hauv kev teeb tsa precision uas yuav tsum tau tswj cov torque coefficient. Yog li ntawd, lub tshuab ntxhua khaub ncaws no tau siv dav hauv cov txheej txheem fastening ntawm polar scientific research equipment brackets thiab sib sib zog nqus - hiav txwv submersible siab plhaub.

Tau txais cov duab kos los ntawm cov neeg siv khoom lossis tsim cov duab kos raws li lawv cov qauv lossis cov qauv tshwj xeeb.

Cov duab kos, cov khoom siv raw, kev kho deg, thiab lwm yam ntsiab lus tau lees paub los ntawm ob tog.

Muab cov lus tsocai, xyuas kom meej tias qhov kev txiav txim kom muaj nuj nqis yog qhov tseeb, thiab suav nrog tag nrho cov ntsiab lus tseem ceeb,

xws li cov nqe lus ntawm kev them nyiaj, cov nqe lus ntawm kev lag luam, hom ntim, thiab lwm yam.

Ua raws li cov duab kos thiab cov qauv raws nraim thaum tsim cov khoom.

Nws tau ua tib zoo ntim thiab xa mus rau cov neeg siv khoom tom qab kev tshuaj xyuas zaum kawg.

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