Mea hoʻopilikino NBR/EPDM/FKM/SIL Rubber O-Ring

NBR

Hoʻomākaukau ʻia ka Nitrile Rubber e ka copolymerization o ka acrylonitrile a me ka butadiene. ʻO ka ʻike o ka acrylonitrile mai 18% a 50%. ʻOi aku ka kiʻekiʻe o ka ʻike o ka acrylonitrile, ʻoi aku ka maikaʻi o ke kūʻē ʻana i ka aila wahie hydrocarbon, akā ʻoi aku ka maikaʻi o ka haʻahaʻa haʻahaʻa haʻahaʻa, ʻo ka hoʻohana maʻamau ka pae wela -40 ~ 120 ℃. ʻO Butanol kekahi o nā mea hoʻohana maʻamau no nā sila aila a me nā apo-O.

Pono:

· Ke kū'ē maikaʻi i kaʻaila, ka wai, kaʻaila a me kaʻaila kiʻekiʻe.

· ʻO ka deflection kaomi maikaʻi, ka pale ʻana a me ka elongation.

Nā hemahema:

· ʻAʻole kūpono i nā mea hoʻoheheʻe polar e like me ketones, ozone, nitro hydrocarbons, MEK a me chloroform. · Hoʻohana ʻia no ka hana ʻana i ka pahu wahie, lubricating aila pahu a me nā ʻāpana ʻāpana, ʻoi aku ka hoʻopaʻa ʻana i nā ʻāpana, hoʻohana ʻia i ka aila hydraulic petroleum, ka ʻaila, ka wai, ka momona silika, ka aila silika, ka aila lubricating diester, ka aila hydraulic ethylene glycol a me nā mea hoʻolaha wai. ʻO ia ka mea hoʻohana nui loa a haʻahaʻa loa ke kumu kūʻai.

FKM

ʻO Fluoro Carbon Rubber ʻO kēlā me kēia ʻano ʻano like ʻole e pili ana i ka maʻiʻo fluorine (ka hoʻolālā monomer) o nā molekala fluorine. ʻOi aku ka maikaʻi o ke kūpaʻa kiʻekiʻe ma mua o ka silicone rubber, maikaʻi ke kūpaʻa kemika, kūʻē i ka hapa nui o ka aila a me ka solvent (koe wale ke ketone, ester), ka pale ʻana i ka wā a me ka pale ozone; ʻAʻole maikaʻi ka pale anuanu, ʻo ka hoʻohana maʻamau o ka pae wela o -20 ~ 250 ℃. Hiki ke kū i ka wela haʻahaʻa a hiki i -40 ℃. Pono:

· Kūleʻa wela i 250 ℃

· Kūleʻa i ka hapa nui o nā aila a me nā mea hoʻoheheʻe, ʻoi aku ka nui o nā waikawa āpau, aliphatic, aromatic a me nā aila holoholona a me nā mea kanu.

Nā hemahema:

· ʻAʻole ʻōlelo ʻia no nā ketones, nā esters o ke kaumaha molekala haʻahaʻa a me nā hui pū ʻana me ka nitrate. · Nā kaʻa, nā locomotives, nā ʻenekini diesel a me nā ʻōnaehana wahie.

SIL

Hana ʻia ke kaulahao nui Silicone Rubber me ke silika (-si-O-Si) i hoʻopaʻa ʻia. ʻOi aku ka maikaʻi o ka pale ʻana i ka wela, ke kū anuanu, ke kūpaʻa ozone, ke kū ʻana o ka wā kahiko. ʻO ka hana hoʻopololei uila maikaʻi. He ʻilihune ka ikaika tensile o ka lāʻau maʻamau a ʻaʻohe ʻaila kūpaʻa. Pono:

· Ka ikaika tensile a hiki i ka 1500PSI a me ka pale ʻana i ka waimaka a hiki i 88LBS ma hope o ka hana ʻana.

· Elasticity maikaʻi a me ka distortion hoʻoemi maikaʻi

· Kūleʻa maikaʻi i nā solvents neutral

· Kūleʻa wela maikaʻi

· Kūleʻa anuanu maikaʻi loa

· Kūleʻa maikaʻi i ka ozone a me ka oxide erosion

ʻOi aku ka maikaʻi o ka hana hoʻokaʻawale uila

· ʻOi aku ka wela wela a me ka wela

Nā hemahema:

· ʻAʻole ʻōlelo ʻia no ka hoʻohana ʻana i ka hapa nui o nā solvents concentrated, nā aila, nā waikawa concentrated a me ka diluted sodium hydroxide. · Hoʻohana ʻia nā sila a i ʻole nā ​​ʻāpana ʻōpala i loko o ka ʻoihana mea hana hale, e like me nā POTS uila, hao, ʻāpana pahu i nā umu microwave.

· ʻO nā sila a i ʻole nā ​​ʻāpana lāʻau i loko o ka ʻoihana uila, e like me nā kī kelepona paʻa, nā mea hoʻopaneʻe i ka DVD, nā sila i nā hui kelepona, etc.

· Hoʻopaʻa i nā ʻano mea like ʻole e pili ana i ke kino o ke kanaka, e like me nā hue wai, nā punawai inu, etc.

Epdm

Hoʻopili ʻia ʻo Ethylene Rubber (PPO) mai ka Ethylene a me propylene i ke kaulahao nui a maikaʻi loa ka pale ʻana i ka wela, ke kūpaʻa ʻelemakule, ke kūpaʻa ozone a me ke kūpaʻa, akā ʻaʻole hiki ke hoʻohui ʻia i ka sulfur. No ka hoʻoponoponoʻana i kēia pilikia, hoʻokomoʻia kahi'āpana liʻiliʻi o ke kolu me ke kaulahao pālua i ke kaulahao nui o EP, hiki ke hanaʻia ma ka hoʻohuiʻana i ka sulfur i EPDM. ʻO ka pae wela maʻamau -50 ~ 150 ℃. Ke kū'ē maikaʻi loa i nā mea hoʻoheheʻe polar e like me ka waiʻona, ketone, glycol a me ka phosphate lipid hydraulic wai.

Pono:

· Kūleʻa maikaʻi i ka wā a me ka pale ozone

· Kūleʻa wai maikaʻi loa a me ka pale kemika

· Hiki ke hoʻohana i nā waiʻona a me nā ketone

· Kiʻekiʻe wela mahu kū'ē, maikai impermeability i kinoea

Nā hemahema:

· ʻAʻole ʻōlelo ʻia no ka hoʻohana ʻana i ka meaʻai a i ʻole ka ʻike ʻana i ka hydrogen aromatic. · Sila no ke kiʻekiʻe wela ka wai mahu.

· ʻO nā sila a i ʻole nā ​​ʻāpana no nā lako ʻauʻau.

· Nā ʻāpana Rubber i ka ʻōnaehana braking (braking).

· Sila i loko o nā radiators (nā pahu wai kaʻa).