Kev siv roj hmab cov ntaub ntawv yuav tsum ua kom tau raws li qhov yuav tsum ua ntawm txoj kev khi. Vim tias qhov sib txawv hauv xov xwm sib khi thiab kev ua haujlwm ntawm cov cuab yeej sib txawv, cov khoom siv sib khi no yuav tsum muaj kev sib haum xeeb. Cov ntawv yuav tsum tau ua rau sealing yog:
1 Cov khoom yog tuab thiab nws tsis yog yooj yim mus xau qhov nruab nrab.
2 muaj kev sib tw tsim nyog thiab kev kho mob.
3 Sib zog thiab kev ua siab zoo yog qhov zoo, thiab rhuav tau lub suab deev me me.
4 tsis soften ntawm kev kub muaj peev xwm, tsis yog decompose, tsis nyuaj ntawm tsawg kub, tsis yog brittle.
5 Ua zoo tiv thaiv kev kub ntxhov, ua haujlwm ntev hauv acids, alkalis, roj thiab lwm yam mob. Nws qhov kev hloov ntawm qhov ntim-qhov tawv nqaij me me tsis tuaj yeem koom rau qhov hlau.
6 Cov kev sib txhuam coefficient yog me me thiab qhov kev ua haujlwm tsis kam yog qhov zoo.
7 muaj tag nrho cov yooj yooj yim nrog lub sealing nto.
8 Kev laus kev ua haujlwm zoo thiab ua haujlwm ntev.
9 yooj yim ua thiab tsim, pheej yig, yooj yim kos.
Obviously, nws yeej ua tsis tau rau cov khoom siv los ua kom tau raws li cov kev cai saum toj no, tab sis cov ntaub ntawv muaj kev sib khi zoo zoo yuav ua tau raws feem ntau ntawm cov kev cai saum toj no.
Hlau, Surfacing Alloy, Txau Hmoov Cov Roj Khaub Ncaws, Cov Fillers Hard, Cov Khoom Sib Ntsig Mechanism, Piston Rings, Gap Seals, Ntim Cov Khoom Plig, Hermetic Seals, Txoj Kev Fillers
Cemented Carbide Tungsten Cobalt Carbide, Tungsten Cobalt Titanium Carbide Neeg Kho Mob Foob
Cov khoom siv kub hnyiab Kub, nyiaj, indium, germanium Lub tshuab nqus tsev fais fab, kev kub ceev, foob kub
Kev ua tau zoo ntawm cov ntaub ntim khoom siv yog ib qho tseem ceeb hauv kev txuag tau zoo. Kev xaiv cov ntaub ntim khoom siv yog los ntawm qhov chaw ua haujlwm ntawm kev sib kis, xws li ntsuas kub, kev ua haujlwm, kev siv ua haujlwm, thiab kev txav mus los. Cov txheej txheem yooj yim rau cov ntaub ntawv kaw tseg yog raws li nram no:
1. Muaj tej yam khoom siv dag zog, xws li lub zog tensile, elongation thiab li nyob rau.
2. Kev tsim nyog thiab elasticity, me me compression.
3. Kub thiab kub tsawg, tsis txhim khu, softening ntawm kev kub muaj peevxwm, tsis muaj zog ntawm qhov kub tsawg.
4. Muab kho kom haum rau cov chaw ua haujlwm, tsis muaj o, tsis txhob qis, tawv, thiab lwm yam.
5. Cov pa oxygen tsis ua haujlwm thiab kev laus kuj ua haujlwm zoo thiab ruaj khov.
6. Coj hnyav, tsis txhuam cov hlau.
7. Yooj yim rau cov qauv thiab txheej txheem, tsis tshua muaj nqi.
