Hoʻokumu ʻia nā composites braided 3d ma o ka ulana ʻana i nā ʻāpana maloʻo i hoʻohana ʻia me ka ʻenehana textile.Hoʻohana ʻia nā ʻāpana maloʻo maloʻo e like me ka hoʻoikaika ʻana, a hoʻohana ʻia ke kaʻina hana hoʻoheheʻe resin (RTM) a i ʻole ka resin membrane infiltration (RFI) no ka impregnate a me ka ho'ōla, e hana pololei ana i ke ʻano hui.Ma ke ʻano he mea hoʻohui kiʻekiʻe, ua lilo ia i mea hoʻolālā koʻikoʻi i ke kahua o ka mokulele a me ka aerospace, a ua hoʻohana nui ʻia i nā ʻoihana o nā kaʻa, nā moku, ke kūkulu ʻana, nā mea haʻuki a me nā mea lapaʻau.ʻAʻole hiki i ka manaʻo kuʻuna o nā laminates composite ke hoʻokō i ka loiloi waiwai mechanical, no laila ua hoʻokumu nā loea ma ka home a me nā ʻāina ʻē aʻe i ka manaʻo hou a me nā ʻano loiloi.
ʻO ka hui pūlima ʻekolu-dimensional kekahi o nā mea i ulana ʻia i hoʻohālikelike ʻia, i hoʻoikaika ʻia e ka lole i hoʻopaʻa ʻia i ka fiber (ʻike ʻia ʻo nā ʻāpana preformed ʻekolu-dimensional) i ulana ʻia e ka ʻenehana wili.Loaʻa iā ia ka ikaika kikoʻī kiʻekiʻe, ka modulus kikoʻī, ka hoʻomanawanui pōʻino kiʻekiʻe, ka paʻakikī haʻihaʻi, ka pale ʻana i ka hopena, ka pale ʻana a me ka luhi a me nā ʻano maikaʻi ʻē aʻe.
ʻO ka hoʻomohala ʻana o nā composites braided THREE-DIMENSIONAL ma muli o ka haʻahaʻa haʻahaʻa interlaminar shear ikaika a me ka maikaʻi ʻole o ka hopena o nā mea hana i hana ʻia mai nā mea hoʻoikaika unidirectional a i ʻole bi-directional, ʻaʻole hiki ke hoʻohana ʻia e like me nā ʻāpana lawe ukana nui.Ua hoʻokomo ʻo LR Sanders i ka ʻenehana braided ʻekolu-dimensional i loko o ka noi ʻenekinia ma 977. ʻO ka mea i kapa ʻia ʻo 3D braided ʻenehana he ʻekolu-dimensional unstitch-free piha piha i loaʻa ma o ka hoʻonohonoho ʻana o nā fibers lōʻihi a pōkole i ka lewa e like me kekahi mau lula a me ka interlacing. me kekahi i kekahi, kahi e hoʻopau ai i ka pilikia o ka interlayer a hoʻomaikaʻi nui i ka pale ʻino o nā mea composite.Hiki iā ia ke hana i nā ʻano ʻano maʻamau a me ke kino paʻa kūikawā, a hana i ke ʻano he multi-function, ʻo ia hoʻi, ulana multilayer integral lālā.I kēia manawa, ʻoi aku ma kahi o 20 mau ʻano o ka ulana ʻana i nā ʻano ʻekolu, akā ʻehā mau mea i hoʻohana mau ʻia, ʻo ia hoʻi ka ulana polar.
hili ʻana), ulana diagonal (diagonalbraiding a paʻi ʻana paha
ka ulana ʻana, ka ulana milo orthogonal (orthogonal braiding), a me ka wili ʻana i ka warp interlock braiding.Nui nā ʻano o ka ulana ʻana ʻekolu-DIMENSIONAL, e like me ka wili ʻana i ʻekolu mau ʻanuʻu, ʻehā mau ʻanuʻu ʻekolu-dimensional a me nā ʻanuʻu ʻekolu-dimensional braiding.
Nā hiʻohiʻona kaʻina hana RTM
ʻO kahi kuhikuhi hoʻomohala koʻikoʻi o ke kaʻina RTM ʻo ia ka hoʻoheheʻe ʻana o nā ʻāpana nui.ʻO VARTM, LIGHT-RTM a me SCRIMP nā kaʻina hana.ʻO ka noiʻi a me ka hoʻohana ʻana i nā ʻenehana RTM e pili ana i nā ʻano aʻoaʻo a me nā ʻenehana, ʻo ia kekahi o nā kahua noiʻi ikaika loa o nā composites ma ka honua.ʻO kāna mau noiʻi noiʻi: ka hoʻomākaukau ʻana, nā kinetics kemika a me nā waiwai rheological o nā ʻōnaehana resin me ka viscosity haʻahaʻa a me ka hana kiʻekiʻe;Hoʻomākaukau a me nā hiʻohiʻona permeability o ka fiber preform;ʻenehana hoʻohālikelike kamepiula o ke kaʻina hana;On-line kiaʻi 'ike loea o ka hana ana;ʻenehana hoʻolālā mold optimization;Ka hoʻomohala ʻana i kahi mea hou me kahi mea hana kūikawā In vivo;Nā ʻenehana loiloi kumu kūʻai, etc.
Me kāna hana kaʻina hana maikaʻi loa, hoʻohana nui ʻia ʻo RTM i nā moku, nā keʻena koa, ka ʻenekinia pale aupuni, ka halihali, aerospace a me ka ʻoihana kīwila.ʻO kāna mau hiʻohiʻona nui e like me kēia:
(1) Ka maʻalahi o ka hana ʻana a me ke koho ʻana i nā mea, e like me nā unahi hana like ʻole,
ʻO ka hoʻololi o nā mea hana he mea maʻalahi hoʻi, ka hoʻopuka o nā huahana ma waena o 1000 ~ 20000 mau ʻāpana / makahiki.
(2) Hiki iā ia ke hana i nā ʻāpana paʻakikī me ka maikaʻi o ka ʻili a me ka pololei kiʻekiʻe, a ʻoi aku ka maikaʻi o ka hana ʻana i nā ʻāpana nui.
(3) Maʻalahi e hoʻomaopopo i ka hoʻoikaika kūloko a me ka hoʻolālā sandwich;Hoʻololi maʻalahi o nā papa mea hoʻoikaika
ʻAno a me ka hoʻolālā i hoʻolālā ʻia e hoʻokō i nā koi hana like ʻole mai ka ʻoihana kīwila a i ka ʻoihana aerospace.
(4) Hiki i ka 60%.
(5) Aia ke kaʻina hana hoʻoheheʻe RTM i kahi kaʻina hana hoʻoheheʻe paʻa, me ka hana maʻemaʻe a me ka haʻahaʻa haʻahaʻa styrene i ka wā o ke kaʻina hana.
(6) Loaʻa i ke kaʻina hana hoʻoheheʻe RTM nā koi koʻikoʻi ma ka ʻōnaehana maka, kahi e koi ai i ka mea i hoʻoikaika ʻia e loaʻa i ke kūpaʻa maikaʻi i ka resin kahe ʻana a me ka infiltration.Pono ka resin i ka haʻahaʻa viscosity, kiʻekiʻe reactivity, medium wela curing, exothermic haʻahaʻa kiʻekiʻe waiwai o ka ho'ōla, liʻiliʻi viscosity i ka leaching kaʻina hana, a hiki gel koke ma hope o injection.
(7) Haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa, maʻamau maʻamau ʻoi <30psi (1PSI = 68.95Pa), hiki ke hoʻohana i ka FRP mold (me ka epoxy mold, FRP surface electroforming nickel mold, etc.), kiʻekiʻe kiʻekiʻe o ke kūʻokoʻa o ka hoʻolālā mold, haʻahaʻa ke kumu kūʻai. .
(8) He haʻahaʻa ka porosity o nā huahana.Ke hoʻohālikelike ʻia me ke kaʻina hana prepreg, ʻaʻole pono ke kaʻina RTM i ka hoʻomākaukau, ka lawe ʻana, ka mālama ʻana a me ka hoʻoheheʻe ʻana o ka prepreg, ʻaʻohe paʻakikī paʻakikī paʻa lima a me ka ʻeke ʻeke kaomi, ʻaʻohe manawa mālama wela, no laila maʻalahi ka hana.
Eia nō naʻe, hiki i ke kaʻina hana RTM ke hoʻopili nui i nā waiwai o ka huahana hope loa no ka mea hiki ke hoʻohālikelike ʻia ka resin a me ka fiber ma o ka impregnation i ka pae hoʻoheheʻe, a me ke kahe o ka fiber i loko o ka lua, ke kaʻina hana impregnation a me ke kaʻina hana hoʻōla o ka resin hiki ke hoʻopilikia nui i ka. nā waiwai o ka huahana hope, no laila e hoʻonui ai i ka paʻakikī a me ka hiki ʻole o ke kaʻina hana.
Ka manawa hoʻouna: Dec-31-2021