Stellite 21

Stellite cobalt-raws li alloys muaj complex carbides nyob rau hauv lub alloy matrix. Lawv tiv taus abrasion, abrasion thiab corrosion thiab khaws cov khoom no ntawm qhov kub thiab txias. Nws zoo heev hnav tsis kam yog feem ntau yog los ntawm cov khoom siv tshwj xeeb ntawm cov txheej txheem nyuaj carbide dispersed hauv CoCr alloy matrix.

Stellite 21 (yav tas los Stellite 8) tsim

Nws tshwm sim nyob rau hauv nruab nrab -1930s raws li ib tug corrosion-resistant CoCr alloy thiab sai sai pom daim ntawv thov raws li ib tug biocompatible hip cog thiab hniav hniav alloy. Ntau cov alloys tam sim no siv rau hauv daim ntawv thov kev kho mob yog variations ntawm tus thawj Stellite 21 muaj pes tsawg leeg. Nws kuj yog ib qho ntawm thawj cov cua sov-resistant alloys sim siv nyob rau hauv dav hlau xyaw.

Stellite 21 muaj cov CoCrMo alloy matrix uas muaj cov khoom tawg yooj yim, uas ntxiv dag zog rau cov hlau thiab ua kom nws cov tawv tawv, tab sis kuj txo cov ductility. Hom, cov duab, qhov loj me thiab kev faib tawm ntawm carbides tau cuam tshuam zoo heev

Vim yog kev ua keeb kwm ntawm cov hlau, cov khoom siv kho tshuab ntawm Stellite 21 yog nyob ntawm txoj kev tsim khoom thiab kev kho cua sov tom qab.

Vim qhov tsawg carbide ntim feem, cov cobalt-based alloy matrix dominates hnav thiab corrosion zog. Stellite 21 muaj kev tiv thaiv zoo heev rau cavitation, abrasion thiab hlau-rau-hlau zawv zawg hnav tab sis tsis pom zoo rau kev hnav hnyav hnyav. Thaum hnav thiab txawm tias thaum lub sij hawm machining, qhov saum npoo hardens ho thiab siv cov cuab yeej machining kom raug thiab cov tswv yim tseem ceeb kom tau txais cov txiaj ntsig zoo tshaj plaws.

Stellite 21 muaj kev tiv thaiv zoo heev rau thermal thiab mechanical shock. Qhov zoo tshaj plaws kub lub zog yog ua tiav los ntawm kev kho cua sov ntawm 1200-1240C (2190-2265F), tom qab ntawd quenching thiab aging nyob rau hauv qhov kub ntawm 700-1150C (1290-2100F).

Stellite 21 tuaj yeem raug cam khwb cia, hmoov metallurgically ua tiav lossis siv los ua vuam tawv tawv. Pom zoo rau cov ntawv thov uas muaj cavitation, yaig, corrosion thiab / lossis kub kub, xws li petrochemical thiab lub zog tsim hluav taws xob valve trim. Vim nws qhov kev cuam tshuam zoo, nws yog dav siv hauv kev tsim cov forging lossis kub stamping tuag. Oxyacetylene welding deposition txoj kev tsis pom zoo rau cov hlau no.

Nominal Composition (Mass %) thiab Physical Properties

Yuav siv tau nyob rau hauv ntau yam kev lag luam.

 

cev

daim ntawv

rod

OEM & ODM

OEM & ODM

OEM & ODM

Cim npe nrov: Tuam Tshoj stellite 21 manufacturers, lwm tus neeg, Hoobkas