Laho maoliHe kūpono ia no ka wai, ka wai kai, ka ea, ke kinoea inert, ka alkali, ka wai paʻakai a me nā mea hana ʻē aʻe, akā ʻaʻole kūpaʻa i ka ʻaila mineral a me nā mea hoʻoheheʻe non-polar, ʻaʻole ʻoi aku ka mahana o ka hoʻohana lōʻihi ma mua o 90 ℃, maikaʻi loa ka hana wela haʻahaʻa, hiki ke hoʻohana ʻia ma luna o -60 ℃.

  ʻŌpala nitrileHe kūpono no nā huahana petroleum, e like me ka petroleum, ka ʻaila lubricating, ka ʻaila wahie, a pēlā aku. ʻO ka mahana hoʻohana lōʻihi he 120 ℃, e like me ka ʻaila wela e hiki ke kū i 150 ℃, ʻo ka mahana haʻahaʻa he -10~-20 ℃.

  ʻŌpala NeopreneHe kūpono no ka wai kai, ka waikawa nāwaliwali, ka alkali nāwaliwali, ka hopena paʻakai, ke kūpaʻa maikaʻi loa i ka oxygen a me ka ʻelemakule ozone, ʻoi aku ka maikaʻi o ke kūpaʻa ʻana o ka aila ma mua o ka nitrile rubber a ʻoi aku ka maikaʻi ma mua o nā rubber laulā ʻē aʻe, ʻoi aku ka mahana o ka hoʻohana lōʻihi ma lalo o 90 ℃, ʻaʻole iʻoi aku ka mahana o ka hoʻohana kiʻekiʻe ma mua o 130 ℃, a ʻo ka mahana haʻahaʻa he -30 ~ -50 ℃.

Nui nā ʻano like ʻole olaholio fluorine, loaʻa iā lākou ke kūpaʻa maikaʻi i ka waikawa, ke kūpaʻa oxidation a me ke kūpaʻa aila, ke kūpaʻa solvent. Hiki ke hoʻohana ʻia ma aneane nā media waikawa āpau a me kekahi mau aila a me nā solvents, ka mahana hoʻohana lōʻihi ma lalo o 200 ℃.

ʻO ka pepa laholio e like me ka gasket flange, i hoʻohana nui ʻia no nā pipelines a i ʻole nā ​​​​​​lua manhole i wehe pinepine ʻia, nā lua lima, ʻaʻole iʻoi aku ke kaomi ma mua o 1.568MPa. No ka mea, i nā ʻano gaskets āpau, ʻo nā gaskets laholio ka palupalu loa, ka hana hoʻopili maikaʻi, a hiki ke pāʻani i kahi hopena sila ma lalo o kahi ikaika pre-loading liʻiliʻi. Ma muli o kēia, i ka wā e kau ʻia ai ke kaomi kūloko, maʻalahi ke kaomi ʻia i waho ma muli o ka mānoanoa a i ʻole ka paʻakikī haʻahaʻa o ka gasket.

ʻO ka pepa laholio i hoʻohana ʻia i loko o ka benzene, ketone, ether a me nā mea hoʻoheheʻe organik ʻē aʻe, maʻalahi ke ʻike ʻia ka pehu ʻana, ka piʻi ʻana o ke kaumaha, palupalu, a me nā mea pipili, e hopena ana i ka hāʻule ʻana o ka sila. Ma keʻano laulā, inā ʻoi aku ka nui o ka pehu ʻana ma mua o 30%, ʻaʻole hiki ke hoʻohana ʻia.

I ke ʻano o ke kaomi haʻahaʻa (ʻoi aku ma lalo o 0.6MPa) a me ka vacuum, ʻoi aku ka kūpono o ka hoʻohana ʻana i nā pads rubber. He maikaʻi ka density o ka mea rubber a me ka permeability haʻahaʻa. No ka laʻana, ʻoi aku ka kūpono o ka rubber fluorine no ka sila ʻana i nā gaskets o nā pahu vacuum, a ʻo ke kekelē vacuum a hiki i ka 1.3 × 10-7Pa. Ke hoʻohana ʻia ka pad rubber ma ka pae kekelē vacuum o 10-1 ~ 10-7Pa, pono e hoʻomoʻa a hoʻomoʻa ʻia.