Graphite packing, sɛ ade a ɛho hia a wɔde hyɛ mu, na wɔde di dwuma kɛse wɔ mfiridwuma mu ma nnua a ɛkyinkyini, nneɛma a wɔde hyɛ mu, ne nneɛma a wɔde hyɛ mu a ɛnyɛ adwuma. Ne nnyinasosɛm a ɛyɛ adwuma no gyina graphite no honam fam ne nnuru su soronko so. Ɛnam structure design ne adapability a ɛwɔ adwumayɛ tebea mu no, ɛma ɛkari pɛ wɔ sealing a etu mpɔn ne wear resistance ntam. Saa asɛm yi bɛka nneɛma a ɛwɔ graphite packing mu, ne sealing mechanism, nneɛma a ɛka adwumayɛ tebea horow, ne application scenarios a ɛtaa ba no ho asɛm.
Nneɛma a ɛwɔ mu ne dwumadi atitiriw a ɛwɔ graphite packing mu .
Nneɛma titiriw a ɛwɔ graphite packing mu no taa yɛ graphite a wɔatrɛw mu anaasɛ graphite a ɛyɛ mmerɛw. Wɔnam abɔde mu graphite a wɔde nnuru yɛ (te sɛ intercalation) so na afei wɔtrɛw mu wɔ ɔhyew a ɛkɔ soro mu na ɛyɛ. Saa adeyɛ yi ma abusuabɔ a ɛda graphite ntoatoaso no ntam no yɛ mmerɛw, na ɛyɛ graphite nwansena a wɔatrɛw mu a ɛwɔ nhyehyɛe a ɛyɛ mmerɛw na ɛyɛ porous. Afei wɔde saa nwansena yi mia anaasɛ wɔpam no ma ɛyɛ nhama anaa nhama a ɛyɛ mmerɛw sɛ ɛbɛdannan ne ho.
Adwumayɛ su atitiriw no bi ne:
1. Self-Lubrication: Graphite crystal layers no hwe ase ntɛmntɛm, na ɛde friction coefficient a ɛba fam ba (mpɛn pii no 0.05-0.15), ɛtew seal surface wear a ɛho nhia sɛ wɔde srade foforo ba no so.
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3. Nnuru a ɛnyɛ adwuma: Graphite yɛ adwuma a ɛnyɛ adwuma wɔ acid, bases, ne organic solvents dodow no ara mu, ɛyɛ nea ɛtumi nwura mu wɔ media a ɛyɛ oxidizing a ɛyɛ den (te sɛ sulfuric acid a ɛyɛ den ne nitric acid nkutoo mu), na ɛma ɛfata ma tebea a ɛyɛ adwuma a ɛyɛ adwuma.
4. Nhyɛso ne ahoɔden a wɔde gyina ano: Ɛdenam nhyɛso no a wɔhwɛ so (mpɛn pii no 20%-30%) so no, filler no betumi asɛe radially wɔ axial pressure ase, ahyɛ sealing gap no ma na ama initial sealing force no aba.
