Nickel Washers

Cov khoom siv tsev neeg ntawm nickel washers tsis txwv rau cov nickel ntshiab. Nickel- tooj liab alloys xws li Monel 400 thiab nickel-chromium alloys xws li Inconel 600 kuj tau siv dav hauv cov xov xwm tshwj xeeb. Raws li ASTM B164 cov cai rau Monel 400 rods, nws qhov nruab nrab linear expansion coefficient nyob rau hauv thaj tsam ntawm 20 mus rau 300 degrees Celsius yog 13.9 microns ib meter ib Kelvin. Piv nrog rau 12.5 microns ib 'meter' ntawm cov pa roj carbon zoo tib yam, qhov siab dua thermal expansion tus nqi tso cai rau lub gasket kom ua raws li cov flange nto thaum nws heats, yog li them nyiaj rau qhov poob ntawm pre{13}}tightening quab yuam los ntawm thermal elongation ntawm lub ntsia liaj qhov rooj. Nyob rau tib lub sijhawm, raws li NACE MR0175 tus qauv kev ntsuas qhov tsim nyog rau hydrogen sulfide- muaj ib puag ncig, Monel Cov kev ntxhov siab corrosion tawg qhov pib ntawm 400 nyob rau hauv cov roj qaub thiab cov roj av yog siab li 240 MPa, uas yog ntau dua li 150 MPa ntawm austenitic stainless hlau. Yog li ntawd, hom gasket no nyiam siv rau hauv cov khoom siv roj ua kua qaub thiab submarine manifold sib txuas. Nws zoo heev pitting corrosion kuj kuj tau raug txheeb xyuas hauv simulated seawater tag nrho immersion xeem, thiab txhua xyoo corrosion tus nqi yog tsawg dua 0.005 hli.

Hais txog kev coj tus cwj pwm thiab kev sib dhos, cov yam ntxwv ntawm kev sib txhuam thiab elastic rov qab muaj peev xwm ntawm cov nickel washers ncaj qha cuam tshuam rau qhov ntev - lub sij hawm stability ntawm fastening system. Raws li DIN 946 tus qauv txheej txheem rau kev ntsuas qhov sib txhuam coefficient ntawm fasteners, tus nqi ntawm kev sib txhuam coefficient ntawm cov kabmob nto ua ke nrog cov nickel ntxhua khaub ncaws thiab stainless hlau ntsia liaj qhov rooj yog los ntawm 0.15 txog 0.22. Qhov qis qis no tso cai rau ntau dua ua ntej- nruj zog kom tau raws li tib lub zog. Piv txwv li, thaum M16 ntsia liaj qhov rooj yog nruj rau 200 Nm, lub pre- zawm quab yuam tuaj yeem ncav cuag 65,000 N, uas yog kwv yees li 12% siab dua li ntawm carbon steel ntxhua khaub ncaws. Tsis tas li ntawd, raws li ASTM E9 compression test, cov nickel gasket ua rau elastic deformation ntawm 0.01 hli nyob rau hauv thawj preload quab yuam, thiab lub deformation mus tas li tom qab unloading tsuas yog 0.01 hli, qhia tau hais tias nws muaj zoo heev resilience thiab muaj peev xwm them rau xov so los ntawm cyclic loads. Lub sij hawm ntev - kev soj ntsuam qaug zog kuj pom tau tias nyob rau hauv ib qho kev sib hloov load nrog axial kev nyuab siab amplitude ntawm 120 MPa, qhov txhawb nto ntawm cov nickel gasket tseem tsis muaj hnav thiab tev tawm tom qab peb lab mus. Qhov kev ua haujlwm ntev no ua rau nws tswj hwm qhov kev sib khi tshwj xeeb thiab txo cov naj npawb ntawm cov kev sib txuas tsis tu ncua hauv kev sib txuas ntawm compressor piston pas nrig thiab lub turbine casing, yog li txhim kho lub voj voog kev nyab xeeb ntawm cov khoom siv tseem ceeb.

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.

Cim npe nrov: Tuam Tshoj npib tsib xee washers manufacturers, lwm tus neeg, Hoobkas