Compression permanent deformation rate no ne safoa a ɛho hia sen biara a wɔde bɛkyerɛ nsɔano no nkwa, anaasɛ mpo "veto" indicator.
Yebetumi de mfatoho a emu da hɔ adi dwuma de ate ase: Nsɔano te sɛ spring a ɛyɛ nokware.Ne titiriw asɛmpatrɛw ne sɛ ɛbɛkɔ so na ayɛ nea ɛyɛ den sɛ ɛde ahoɔden a ɛsan ba (adwennwen a ɛkɔ so di nkitaho) bɛba abɔnten so bere a wɔahyɛ no ma (wɔahyɛ no ma akɔ abura no mu). Saa ahoɔden a ɛsan ba yi mia nea wɔde hyɛ mu no so denneennen, na ɛmma nsu a ɛwɔ nsu no mu (ngo, nsu, mframa, ne nea ɛkeka ho) no ntumi nkɔ mu.
Nea ɛde huammɔdi ba tẽẽ: Sɛ "spring" no brɛ na ɛkyɛ a, entumi nsan nkɔ akyi bio, na nhyɛso a wɔde di dwuma no kɔ fam wɔ beae a ɛho hia no ase no, nsɔano no di nkogu.
Compression permanent deformation rate no yɛ sɛnkyerɛnne a ɛkyerɛ "spring" rebound tumi no a ɛyera no tẽẽ.
Adɛn nti na ɛyɛ "Master Key" no?
1. Nnyinasosɛm titiriw a ɛne sɛ wɔbɛsɔ ano tẽẽ .
Nsɔano no mu ade titiriw ne sɛ contact stress no boro nhyɛso a medium no de ba no so. Sɛ daa deformation rate of compression no yɛ kɛse dodo a, sealing member no ntumi nsan nnya ne mfitiase nsusuwii bere a wɔayɛ no petee akyi, na contact stress a efi mu ba no bɛkɔ fam kɛse. Sɛ saa adwennwen yi sua sen nhyɛso a ɛwɔ nsu a wɔatoto mu a ɛwɔ ntam no mu a, nsu a ɛtwetwe no bɛba.
2. Ɛyɛ "honam fam nhwehwɛmu amanneɛbɔ a ɛkɔ akyiri" a ɛfa honam fam onyin ho .
Permanent deformation rate compression nyɛ adwumayɛ a atew ne ho, na mmom ɛyɛ nea ɛyɛ den a ɛda adi wɔ nneɛma a ɛwɔ mu no mu nneɛma a asɛe daa wɔ ɔhyew, oxygen, mfinimfini, bere ne nneɛma afoforo ase. Nea enti a deformation rate no kɔ soro no nso ne ade titiriw a ɛma obi nya akwakoraa ne aberewa:
Polymer chain breakage and crosslinking: Wɔ ɔhyew a ɛkorɔn ne oxygen dwumadi ase no, molecule nkɔnsɔnkɔnsɔn a ɛwɔ rɔba mu no bɛpaapae (ɛbɛma ayɛ mmerɛw na ɛde abata ho) anaasɛ crosslinking a ɛboro so (a nea efi mu ba wɔ hardening ne brittleness mu) no, ne nyinaa bɛsɛe ne nkitahodi a ɛyɛ den no na ama wahwere ne tumi a ɔde bɛbɔ n’akyi.
Plasticizers/softeners a ɛyɛ vaporization anaa leaching: Sɛ wɔde nsɔano to ngo anaa nnuru a wɔde yɛ nneɛma mu bere tenten a, wobetumi de plasticizers nketewa apete anaasɛ ɛbɛyow. Eyi te sɛ mmɔre a ɛma nsu fi mu ba, na ɛma ɛyɛ den, ɛtew, na ɛma ɛyɛ den sɛ ɛbɛtew.
Nnuru mu nsakrae a wontumi nsakra no: Rɔba binom bɛyɛ nnuru a ɛyɛ adwuma a wontumi nsakra no wɔ tebea horow bi mu (te sɛ silicone rɔba "san ba" wɔ ɔhyew a ɛkɔ soro mu), a ɛsɛe wɔn ahoɔden a ɛyɛ den no koraa.
Enti, susudua a ɛwɔ daa compression deformation rate no yɛ nokwarem no simulation ne acceleration a ɛfa onyin nhyehyɛe a ɛwɔ nsɔano no mu wɔ adwumayɛ tebea ankasa mu, na ɛkyerɛ dodow a ɛyera wɔ ne core performance (elasticity) no mu.
3. Ɛkyerɛ sɛ nsɔano nkwa no bɛba awiei .
Wɔ aduruyɛdan mu nhyehyɛe mu no, yebetumi ayɛ bere{0}}temperature curves of materials ho mfonini denam wɔn compression daa deformation rates a yɛbɛsusuw wɔ ɔhyew ne bere tenten a egu ahorow ase no so. Sɛ yɛde nhwɛsoɔ te sɛ Arrhenius equation di dwuma a, yɛbɛtumi de bere a ɛhia ama compression permanent deformation rate no akɔ akyiri na ama yɛadu huammɔdi ahwehwɛdeɛ no ho wɔ adwumayɛ hyeɛ a ɛyɛ daa no mu, na yɛnam so ahyɛ nkɔm wɔ nsusuiɛ som nkwa nna a ɛwɔ nsɔano.