Eyona ndawo ibalulekileyo yesitywina sevalve sisihlalo sokutywina sevalve, ekwabizwa ngokuba yiringi yokutywina.Iyinxalenye ebalulekileyo yeperi yevalve yokutywina, enxibelelana ngokuthe ngqo nendawo ekumbhobho.Imithombo yeendaba ekwimibhobho ibandakanya amanzi, igesi, i-particle, i-asidi kunye nezinto zealkaline, njl njl.Ngoko ke ngawaphi amanyathelo okhuseleko ekukhetheni izitywina zevalvu?

1. Iimpawu zokuqina.Iimpawu zokuqina zizinto zokuqala eziqwalaselwe izixhobo zokutywina, ezibandakanya: amandla okuqina, uxinzelelo lokuqina, ubude ngexesha lekhefu kunye noguquko olusisigxina ngexesha lokuphumla.EPDMkunye ne-NBR, njl.

2. Ukuqina.Ibonisa ukukwazi kwezinto zokutywinwa ukuchasana nokungena kwamandla angaphandle, okuyenye yezinto ezisisiseko zokutywinwa.Ubunzima bezinto eziphathekayo buhambelana nezinye iipropati ukuya kwinqanaba elithile.Ukuphakama kobunzima, amandla amakhulu, amancinci amancinci, kunye nokumelana nokunxiba.Okungcono, kwaye kubi kakhulu ukumelana nobushushu obuphantsi.
3. Uxinzelelo loxinzelelo.Iimpawu zerabha zihlala zikwimeko ecinezelweyo, kwaye le propati inxulumene ngokuthe ngqo nokuqina kwesakhono sokutywinwa kwenqaku elitywiniweyo. 4. Izixhobo ezikwaziyo ukubola.I-oyile-resistant okanye i-medium-resistant-resistant materialation yokutywina, ngamanye amaxesha idibana nemithombo yeendaba ezonakalisayo ezifana ne-asidi kunye ne-alkali kwishishini lemichiza.Ukongeza kokutyalwa kula majelo eendaba, oko kubangela ukwanda kunye nokuncipha kwamandla kumaqondo obushushu aphezulu.PTFE.

5. Ukuchasa ukuguga.Izinto zokutywina zokumelana nokuguga ziya kubangela ukuwohloka kokusebenza emva kokuchatshazelwa yioksijini, i-ozone, ubushushu, ukukhanya, ukufuma kunye noxinzelelo lomatshini, okubizwa ngokuba kukuguga kwezinto zokutywina.

Ukuba unomdla kulo mxholo ungasentla okanye ufuna ukuqonda ngakumbi malunga nezitywina zevalvu, ncedaQhagamshelana nathiUkubonisana ngakumbi