GB / T 3452-1 FPM 70 Shore O Ring

XLONG SEAL muab cov kev lag luam foob qhov kev lag luam ntau tshaj plaws ntawm o-rings, uas muaj txhua qib AS568 thiab ISO 3601 loj, thiab cov hauv qab no:

• ID: .029 nyob rau hauv (0.74 hli) mus rau 26.0 (658.88 hli)

• CS: .040 nyob rau hauv (1.02 hli) rau .275 nyob rau hauv (6.99 hli)

Ntxiv nrog rau qhov ntau thiab tsawg ntawm imperial thiab metric, XLONG kuj muaj ntau yam uas tsis yog tus qauv. Muaj li ntawm 8,000 qhov sib txawv ntawm cov o-nplhaib hauv qhov-Tshuag, peb muaj raws nraim li koj tab tom nrhiav thiab peb tuaj yeem paub meej tam sim ntawd ntawm tus me nyuam loj los me me.

Khoom siv los ntawm lwm tus neeg

Peb cov ntaub ntawv los ntawm DuPont, Dow Corning, Nippon Zeon thiab Bayer-Polysar.

Kev Kub Hlwb Range Chart

Qhov sib txawv ntawm qhov kev pab no yog rau kev siv xwb.
Hauv qhov chaw ib puag ncig, qee lub tebchaw muaj peev xwm tsis ncav lub siab tshaj plaws raws li qhia hauv daim phiaj xwm no. Txawm li cas los xij, qhov kub siab dua tuaj yeem raug tau yog tias raug kis tau luv luv los yog sib quas ntus.

Roj Thiab Kub Tshav Kub Sib Piv Sib Peem

FKM qhov ua tau zoo

• Kev kub cev tsis txaus

• Muaj tshuaj lom neeg siab

• Cov huab cua zoo, kev laus thiab kev nyab xeeb ntawm oxygen

• Yav zoo ua hauj hauv cov roj ntxhia thiab cov rog

• Cov roj tsawg permeability

• Zoo heev tsis kam nyob hauv cov xov xwm tsis-qab rog

• Kub muaj li ntawm -40 ° C rau +225 ° C

Taw qhia FKM

Tus thawj fluoroelastomer yog tsim los ntawm lub tuam txhab DuPont xyoo 1957 los ntawm kev ua haujlwm rau kev ua haujlwm siab tshaj plaws hauv kev lag luam aerospace. Muab cov thermal stability thiab solvent ntau, tetrafluoroethylene (TFE) uas muaj fluoroelastomer terpolymers tau pib rau xyoo 1959. Qhov tseeb FKM polymers muaj ntau dua cov kua roj ntsha tsis tshua zoo dua li cov fluoroelastomers, thiab muaj peev xwm tiv taus cov hauv paus muaj zog thiab ketones thiab cov ntxhuav hydrocarbons, roj, acids, thiab chav. Hauv xyoo 1975 ib tug neeg tshiab fluoroelastomer tsev neeg tau pib los ntawm Asahi Glass Co., FEPM, raws li lwm cov qauv luam yeeb ntawm TFE thiab propylene. Nws yog kev ua lag luam nyob hauv lub npe AFLAS®.

FPM yog lub npe thoob ntiaj teb raws li DIN / ISO, whereas FKM yog daim ntawv luv rau cov fluoroelastomer qeb raws li American Standard ASTM. Viton® yog tus kos npe ntawm DuPont Performance Elastomers, xws li Tecnoflon® rau Solvay Specialty Polymers, Dyneon ™ rau 3M Dyneon thiab DAI-EL ™ rau cov tshuaj Polymers tau los ntawm Daikin.

Tshuaj Tiv Thaiv thiab Kev Ruaj Ntseg

Cov tshuaj tiv thaiv thiab kev nyab xeeb kub yog qhov vim lub zog ntawm cov tshuaj fluorine, tiv thaiv polymer pob txaij thiab cov kab mob carbon-fluor los tua, thiab lub siab sib txuas ntawm cov kab mob carbon-fluor, raws li tau qhia hauv cov duab nram qab no.

FKMs nquag siv tau thaum kub txog 200 ° C rau lub sijhawm ntev. Nyob rau hauv cov kev cai tsheb feem ntau lub neej ntawm tsawg kawg yog 5000 h. Saib ntxiv "Kub tshav kub thiab thermal stability".

Cim npe nrov: gb / t 3452-1 fpm 70 ntug dej nplhaib, tuam txhab lag luam, neeg siv khoom, chaw ua hauj lwm, hloov kho, khw muag khoom