Ma muli o ka plasticization o ka uila, nā ʻāpana kaʻa, a me nā ʻāpana kaʻa, ua kau ʻia nā koi kiʻekiʻe ma ka hana nylon a me ke kūpaʻa wela kiʻekiʻe.Ua wehe kēia i ka prelude i ka noiʻi a me ka hoʻomohala ʻana a me ka hoʻohana ʻana i ka nylon wela kiʻekiʻe.
ʻO ke kīʻaha aniani kiʻekiʻe i hoʻoikaika ʻia i ka nylon PPA kiʻekiʻe ʻo ia kekahi o nā ʻano hou i hoʻokipa nui ʻia, a ʻo ia kekahi o nā mea hou e ulu wikiwiki a maikaʻi loa.ʻO ka fiber aniani i hoʻoikaika ʻia i ke kiʻekiʻe wela o ka nylon composite material e pili ana i ke kiʻekiʻe kiʻekiʻe o ka nylon PPA he maʻalahi ke hana kiʻekiʻe kiʻekiʻe, kiʻekiʻe wela a me nā huahana ikaika kiʻekiʻe.ʻOi loa no nā huahana peripheral automotive engine, pono e hoʻokō i nā koi o ka wā kahiko, ua lilo ka nylon kiʻekiʻe i ke koho maikaʻi loa no nā mea peripheral automotive engine.He ahakū hoʻokahie pili ana i ka nylon wela kiʻekiʻe?
1, Ka ikaika mechanical maikaʻi
Ke hoʻohālikelike ʻia me ka nylon aliphatic kuʻuna (PA6/PA66), loaʻa nā pōmaikaʻi o ka nylon wela kiʻekiʻe, ʻo ia ka mea i hōʻike nui ʻia i nā waiwai mechanical kumu o ka huahana a me kona kūpaʻa wela.Hoʻohālikelike ʻia me ka ikaika mechanical maʻamau, loaʻa ka nylon wela kiʻekiʻe i ka maʻiʻo fiber aniani ma ka papa.He 20% kiʻekiʻe ma mua o ka aliphatic nylon kuʻuna, hiki ke hāʻawi i nā hopena māmā no nā kaʻa.
ʻO ka hale thermostatic automotive i hana ʻia me ka nylon wela kiʻekiʻe.
2, Ultra-kiʻekiʻe wela elemakule hana
Ma lalo o ka manaʻo o ka wela deformation wela o 1.82MPa, ke kiʻekiʻe wela nylon 30% aniani fiber hoʻoikaika ʻia hiki ke hiki i 280 °C, aʻo ka aliphatic aliphatic PA66 30% GF ma kahi o 255 °C.Ke piʻi aʻe nā koi huahana i 200 °C, paʻakikī i nā nylon aliphatic kuʻuna e hoʻokō i nā koi o ka huahana, ʻoi aku ka nui o nā huahana peripheral engine i kahi wela kiʻekiʻe a kiʻekiʻe no ka manawa lōʻihi.I loko o ka pulu kaiapuni, a me ka mea e ku i ka corrosion o mechanical aila.
3, Ke kūpaʻa dimensional maikaʻi loa
He kiʻekiʻe ke kiʻekiʻe o ka wai absorption rate o aliphatic nylon, a hiki i ka saturated water absorption rate ke hiki i 5%, ka hopena i ka haʻahaʻa haʻahaʻa haʻahaʻa o ka huahana, ʻaʻole kūpono no kekahi mau huahana kiʻekiʻe.Hoʻemi ʻia ka hapa o nā pūʻulu amide i ka nylon wela kiʻekiʻe, ʻoi aku ka hapalua o ka hoʻoheheʻe wai o ka nylon aliphatic maʻamau, a ʻoi aku ka maikaʻi o ke kūpaʻa.
4, Paipai kemika maikaʻi
Ma muli o ka pili pinepine ʻana o nā huahana peripheral o nā mīkini kaʻa me nā mea kemika, ua kau ʻia nā koi kiʻekiʻe ma luna o ke kūpaʻa kemika o nā mea, ʻoi aku ka maikaʻi o ka ʻaila, refrigerant a me nā mea kemika ʻē aʻe he hopena corrosive i ka polyamide aliphatic, ʻoiai ke kiʻekiʻe kiʻekiʻe. ʻO ke ʻano o ka nylon ka mea i hana i kēia hemahema, no laila ua hoʻonui ke ʻano o ka nylon wela kiʻekiʻe i ka hoʻohana ʻana o ka mīkini i kahi pae hou.
ʻO nā uhi poʻo cylinder automotive i hana ʻia me ka nylon wela kiʻekiʻe.
Nā noi ʻoihana kaʻa
No ka mea hiki i ka PPA ke hāʻawi i kahi wela hoʻoheheʻe wela ma luna o 270 ° C, he plastic engineering kūpono ia no nā ʻāpana pale wela i nā ʻoihana automotive, mechanical, a me nā ʻoihana uila / uila.I ka manawa like, kūpono hoʻi ʻo PPA no nā ʻāpana e pono e mālama i ka kūpaʻa i ka wā pōkole.
ʻO ka puʻupuʻu kaʻa i hana ʻia me ka nylon wela kiʻekiʻe
I ka manawa like, ua hoʻololi ʻia ka plasticization o nā ʻāpana metala e like me nā ʻōnaehana wahie, nā ʻōnaehana exhaust, a me nā ʻōnaehana hoʻomaha kokoke i ka mīkini e nā resins thermosetting no ka hana hou ʻana, a ʻoi aku ka paʻakikī o nā koi no nā mea.ʻAʻole hiki ke hoʻokō hou i nā koi o ke kūpaʻa wela, ka lōʻihi, a me ke kūʻē kemika o nā plastics ʻenekinia mua.
Eia kekahi, mālama ka moʻo nylon wela kiʻekiʻe i nā pono kaulana o nā plastics, ʻo ia hoʻi ka maʻalahi o ka hana ʻana, ka ʻoki ʻana, ka maʻalahi o ka hoʻolālā manuahi o nā ʻāpana hana paʻakikī, a me ka hoʻemi ʻana i ke kaumaha a me ka walaʻau a me ka pale ʻana i ka corrosion.
No ka mea hiki i ka nylon wela ke kū i ka ikaika kiʻekiʻe, ka wela kiʻekiʻe a me nā wahi ʻino ʻē aʻe, kūpono loa ia no ka enā wahi ngine (e like me nā uhi ʻenekini, nā hoʻololi a me nā mea hoʻohui) a me nā ʻōnaehana hoʻouna (e like me ka bearing cages), nā ʻōnaehana ea (e like me ka ʻōnaehana hoʻokele ea hoʻopau) a me nā mea lawe ea.
Eia nō naʻe, hiki i nā waiwai maikaʻi o ka nylon wela ke lawe mai i nā pono he nui i nā mea hoʻohana, a i ka hoʻololi ʻana mai PA6, PA66 a i ʻole PET / PBT mea i PPA, ʻaʻohe pono e hoʻololi i nā mold, etc., no laila ua kūpono ia no nā noi like ʻole. e koi ana i ka pale wela kiʻekiʻe.Loaʻa nā manaʻo ākea.
Ka manawa hoʻouna: 18-08-22