Kuli misyobo myiingi yamavalvu, pesi mulimo mupati nguwenya, nkokuti, kuswaanganya naa kuchesya kweenda kwamaanzi. Aboobo, penzi lyakujala kwavalvu lilaampindu kapati.
Kuchitila kuti vvalavu ikonzye kugonka maanzi aakati-akati kakunyina kuvwundauka, nkuko kuyandika kubona kuti vvalavu ili kabotu. Kuli twaambo tunji tupa kuti vvalavu izwe, ikuswanizya abwaanda butakwe maanu, busena bwakujala butali kabotu, zibeela zyakujatilila zitabeleki kabotu, kutamvwana aakati ka vvalavu a bonet, azimwi. Mapenzi aaya woonse alakonzya kuleta kutajala kabotu kwa vvalavu. Ee, aboobo kuleta penzi lyakuvwundauka. Aboobo, nzila yakujala mavwili ninzila iiyandika kapati iijatikizya kubeleka kabotu kwamavwili, alimwi iyandika buvwuntauzi buli kabotu alimwi buzulide.
Zibelesyo zyakujala zibelesyegwa kapati mumavalvu zibikkilizya misyobo eeyi:
1. NBR
Kukazya mafuta kubotu, kukaka kusama, kukaka kupya, kukakatila changuzu. Bubi bwayo mbwakuti taikonzyi kukazya kupya kusyoonto, taikonzyi kukazya ozone, taikonzyi kubelesya magesi kabotu, alimwi taikonzyi kweenda kabotu pe.
2. EPDM
Chintu chipati loko cha EPDM nchakuti ilakonzya kukazya kubola, kukwabilila ozone akukazya kubola. Mbwaanga EPDM ili mumpuli ya polyolefin, ilijisi bube bubotu bwakupanga vulcanization.
3. PTFE
PTFE ilaa nguzu zyakukazya misamu, ilakonzya kukazya mafuta manji azintu zipa kuti zintu zibe kabotu (kunze lyama ketones a esters), ilakonzya kukazya muchiindi chilamfu akukazya ozone, pesi ilakonzya kukazya kutontola.
4. Butale bupangwa
chidziwiso: Butale bubelesyegwa mumaanzi, muya amafuta aajisi kupya kwa≤100°C antoomwe akusinikizyigwa kwa≤1.6mpa.
5. Musanganisyo uuzwa ku nickel
chiyanza: Zibeela zya nickel zibelesyegwa mumapayipi aajisi kupya kwa -70~150°C antoomwe akusinikizyigwa kwabunjiniyela PN≤20.5mpa.
6. Mukuba uusanganizidwe
Mukuba wamukuba ulakonzya kukazya kubola mpawo uleelela kubelesyegwa mumapayipi aameenda amuwo aapya≤200℃antoomwe akusinikizyigwa kwa PN≤1.6mpa.
Chiindi chakutumizya: Dec-02-2022
