Loj Diameter Brass Washers

Cov txheej txheem tsim khoom ntawm Loj Diameter Brass Washers yog raws li qhov yuav tsum tau muaj qhov tseeb thiab feem ntau siv strip stamping lossis bar tig. Rau cov lus qhia tshwj xeeb nrog lub taub sab nraud tsawg dua 150 hli, siab - nrawm nrawm stamping tuaj yeem ua kom cov npoo zoo thiab siv cov khoom siv ntau dua 85%, hos cov gaskets nrog ib txoj kab uas hla ntawm ntau tshaj 200 mm yog ua tiav los ntawm CNC tig. Txawm hais tias qhov kev siv cov khoom siv tau txo qis rau li 60%, qhov siab dua qhov sib xws thiab qhov chaw tiav tuaj yeem tau txais. Raws li ASTM E18 Rockwell hardness test, lub hardness ntawm lub stamping ntug tuaj yeem ncav cuag HRB 75 txog 82 vim kev ua haujlwm txias txias, uas yog kwv yees li 12% siab dua HRB 68 txog 72 hauv nruab nrab cheeb tsam. Qhov hardness gradient no tso cai rau thaj tsam ntawm ntug kom muaj kev tiv thaiv ntau dua rau kev nkag mus thaum lub loj- txoj kab uas hla gasket raug rau cov loads tsis sib xws, zoo tiv thaiv ntug ntawm lub taub hau ntsia liaj qhov rooj los ntawm kos rau ntawm qhov chaw ntawm gasket thiab ua rau preload so.

Nyob rau hauv siab -kev siv kub, cov khoom siv hluav taws xob ntawm tooj dag gaskets maj mam txo qis thaum qhov kub nce, tab sis qhov sib txawv ntawm thermal expansion cov yam ntxwv ntawm lawv thiab cov hlau flanges uas nyob ib sab yuav tsum tau xav txog hauv kev tsim. Raws li ASTM E228 thermal expansion coefficient ntsuas txoj kev, qhov nruab nrab linear expansion coefficient ntawm C27000 tooj dag nyob rau hauv thaj tsam ntawm 20 mus rau 200 degrees Celsius yog 20.4 microns ib meter ib Kelvin, thaum zoo tib yam carbon steel tsuas yog 11.7 microns ib meter ib Kelvin. Thaum qhov kev khiav hauj lwm kub nce los ntawm chav tsev kub mus rau 150 degrees Celsius, lub radial expansion ntawm tooj dag ntxhua khaub ncaws nrog ib tug txheej txoj kab uas hla ntawm 100 millimeters yog kwv yees li 0.26 millimeters. Qhov kev nthuav dav no tuaj yeem them rov qab ib feem rau qhov poob ntawm qhov ua ntej-tightening quab yuam los ntawm thermal elongation ntawm lub bolt.

Raws li ASTM E9 kub compression test, tom qab siv lub compressive kev nyuaj siab ntawm 200 MPa thiab tuav lub load rau 100 teev ntawm 200 degrees Celsius, lub creep strain ntawm lub gasket yog kwv yees li 0.2%, uas yog tsawg tshaj li 0.6% ntawm industrial ntshiab tooj liab nyob rau tib lub kub, qhia tau hais tias tooj dag muaj zoo creep kuj. Yog li ntawd, loj- txoj kab uas hla tooj dag ntxhua tuaj yeem tswj xyuas thiab tswj kev sib khi los ntawm lawv tus kheej thermal deformation nyob rau hauv cov xwm txheej ntawm qhov kub thiab txias, xws li cov yeeb nkab flanges thiab cov roj kub twj tso kua mis. Nyob rau tib lub sijhawm, lawv cov thermal conductivity tsawg yog li 110 watts ib 'meter' ib Kelvin ntsuas raws li ASTM E1461 laser flash txoj kev, uas tuaj yeem txo qis bolt kub conduction thiab tiv thaiv cov xov xov los ntawm kev laus thermal ntau dhau.

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 loj txoj kab uas hla brass washers, Tuam Tshoj loj txoj kab uas hla tooj dag washers manufacturers, lwm tus neeg, Hoobkas