PTFE kiʻekiʻe-mehana lole insulating gaskets hui kiʻekiʻe dielectric ikaika (kūpaʻa ma lalo humidity), -70 ° C i 260 ° C wela welau, ke ao holoʻokoʻa kemika kū'ē (koe wale nō mekala alkali hehee wale), non-stick ili (pale creepage), anti-kolo (fiberglass reinforcement vs. pure PTFE), kiʻekiʻe tensile ikaika, haʻahaʻa μ0. μ0. helu helu. Ke hoʻohālikelike ʻia me ka mica, rubber, a me ka PTFE gaskets maʻemaʻe, hāʻawi ka lole PTFE i ka ʻoi aku ka maʻalahi, ka hana ʻana, a me ke kūpaʻa lōʻihi. He kūpono no nā mea hoʻololi, hoʻokaʻawale kaʻa, hoʻopaʻa flange kemika, a me nā lako semiconductor.

ʻO ka palahalaha o ka lole PTFE i ka wā o ka sintering e koi pono i ka ʻoluʻolu, ka mahana, a me ke kāohi ʻana. ʻO nā ʻano kumu: ka mīkini stenter (mālama ʻia nā papa pine i ka laulā, pale i ka hōʻemi ʻana o ka weft), ka ʻaoʻao wela gradient (hoʻomaʻamaʻa lohi → 380-400 ° C paʻa → hoʻomaha mālie ma lalo o 310 ° C ma mua o ka hoʻokuʻu ʻana i ka ʻāʻī), pre-shrunk substrate (wehe i ke koʻikoʻi ulana ma mua o ka uhi ʻana), a me ka mānoanoa o ka uhi ʻana like ʻole (pale). Pono e mālama ʻia ke kaohi ʻana o Stenter a hiki i ka hoʻolili ʻana ma lalo o ke kiko crystallization PTFE (ma kahi o 310°C) e pale i ka warpage.

ʻO ka hoʻohui like ʻana i ka wā PTFE emulsion impregnation o ka lole fiberglass ke ola o ka maikaʻi o ka huahana. ʻO ke kumu o ka uhi ʻole ʻana: hiki ʻole ke kau ʻia (pili i nā wahi lahilahi), nāwaliwali mechanical (koʻikoʻi koʻikoʻi, ʻāhaeha), hiki ʻole ke uila (e hāʻule ana ka uila i ka 1/10), ke komo ʻana i ke kino (pinhole corrosion), nā pilikia dimensional (warpage), a me ka hoʻoponopono ʻana i nā hemahema (ke kāʻei hele, ʻano mānoanoa). Pono ka hoʻopololei like ʻana i ka mana pololei o ka emulsion viscosity, maʻiʻo paʻa, ka haʻalulu o ka lole, ʻokiʻoki i nā āpau, a me nā ʻaoʻao hoʻomaloʻo/sintering multi-zone.

ʻO ka PTFE kiʻekiʻe-mehana lole e hana i ʻehā mau ʻanuʻu o ka hoʻololi ʻana i ka hoʻololi ʻana i ka piʻi ʻana o ka mahana: ma lalo o 260 ° C - lohi ka micro-cracking a me ke koena o ka volatilization additive; ma 327 ° C (kahi hoʻoheheʻe) - ka hoʻololi ʻana i ka crystalline-to-amorphous, palupalu ka uhi, delaminates mai fiberglass; 400-500 ° C - PTFE depolymerizes (hoʻokuʻu i nā kinoea ʻawaʻawa), nalowale ka uhi; ma luna o 500°C – palupalu ka fiberglass (840°C wahi palupalu) a nalowale ka pono o ke kino. E noho ma lalo o 260°C mau, e pale aku i ka 300°C mau piko no ka hana palekana.

PTFE kiʻekiʻe-mehana lole ili lapaʻau wawahi kemika inertness no ka hoʻopaʻa 'ana/paʻi. ʻEhā mau ʻano: etching kemika (sodium-naphthalene, ikehu ʻili 20→40-50 dyn/cm, papa ʻeleʻele mau, micro-porous structure), lapaʻau plasma (nano-roughening, grafting hui hana, puka makani pōkole), mālama corona (kiʻi ʻoniʻoni, palaho wikiwiki, palena hohonu), a me ka lāʻau laser (ka micro-patterning, controlled carbonization). ʻO nā ʻano hana a pau e hoʻopaʻa kino a hoʻokomo i nā hui polar (C=O, -OH, -COOH) e hiki ai ke hoʻopaʻa paʻa.

ʻO ka hoʻomaʻemaʻe waiwai kumu ke kumu kumu o ka maikaʻi o ka lole kiʻekiʻe o ka PTFE. ʻO nā mea haumia (nā mea hoʻomaka, surfactants, nā ion metala, nā mea hoʻomāinoino ʻia) ke kumu o ka hoʻohaʻahaʻa ʻana i ka wela (bubbles, blistering ma luna o 260°C), nā ʻaoʻao lāʻau ʻole (adhesion anchor point), hoʻemi ʻia ka insulation uila (dielectric loss, haʻahaʻa haʻahaʻa voltage), nāwaliwali ka ikaika mechanical (stress concentration, māwae), ʻO nā mea maka maʻemaʻe kiʻekiʻe e hōʻoia i ka FDA-compliant, lōʻihi ke ola, kiʻekiʻe-hana PTFE lole.

Pono ka hoʻopaʻa ʻana o ka lole fiberglass PTFE-coated i ka manawa paʻa ma 370-400°C. Nā kapuahi mau: 30-90s (ka lahilahi) a 3-5+ min (mānoanoa). Nā kapuahi pahu: 5-15 min. ʻO ka hoʻoheheʻe ʻana ma lalo o ka hoʻoheheʻe ʻana e hoʻoulu ai i nā ʻili opaque a ʻeleʻele; ʻO ka nui o ka sintering ke kumu o ka melemele, brittleness, a me ka hoʻokuʻu kinoea fluoride ʻona. Kaʻina hana: hoʻohana i nā mea nānā wela o ka umu ahi, hana i ka nānā maka (semi-transparent, flexible), a hana i nā hoʻokolohua huki lipine. E hōʻoia mau i ka piha-mānoanoa like like.

Pono ka lole wela PTFE e mālama pono i ka palekana a me ka lōʻihi. ʻO nā mea nui: ʻaʻole ma mua o 260°C (ma luna o 320°C e hoʻokuʻu i nā ʻawaʻawa ʻawaʻawa), e pale i nā peʻe ʻoi (ka uhi ʻia nā māwae, e hōʻike ana i ka fiberglass), ʻaʻohe hoʻomaʻemaʻe abrasive (hoʻopōʻino ka huluhulu kila i ka ʻili lāʻau ʻole), mālama i ka hoʻonui ʻana i ka wela (pale i ka haehae ʻana), a hoʻololi i ka wā i pohu a ihi ʻia. E kūʻai i ʻōwili ʻia, mamao mai UV. E hoʻohana i nā mīkina lima pale wela i ka wā e lawelawe ai.

ʻO ka PTFE kiʻekiʻe-mehana lole he coefficient o ka hoʻonui wela (CTE) o 30-60 ppm / ° C (warp / weft) - ʻoi aku ka kiʻekiʻe ma mua o ka fiberglass wale nō akā haʻahaʻa loa ma mua o ka PTFE maʻemaʻe (100-200 ppm / ° C). Loaʻa ka PTFE i nā loli nui (1-2%) ma 19°C a me 30°C. No ka pale ʻana i ka hoʻopaʻa ʻana, ka uhae ʻana, a me ka delamination: hoʻolālā i nā ʻae no ka hoʻonui manuahi, pale i ka hoʻopaʻapaʻa ʻana ma o ka hoʻololi ʻana o ka pae, hoʻohana i nā tensioners ʻakomi ma nā kāʻei conveyor, a kau i ka hoʻolālā overlap anti-buckling. Pono ka nānā mau ʻana no ke kahe anu.

ʻO ka PTFE kiʻekiʻe-mehana lole moena bakena hāʻawi i ʻehā mau pōmaikaʻi: hana ʻole (ʻaʻohe aila a palaoa paha, hoʻokuʻu maʻemaʻe nā pastries palupalu), ākea ākea ākea (-70 ° C a 260 ° C, palekana no ka umu i ka paʻukū), hiki ke hoʻohana hou ʻia (nā kaukani o nā pōʻai, maʻalahi e hoʻomaʻemaʻe), a hiki i ka hoʻokele wela (pale i ke ahi, kaulike browning). ʻOi aku ka maikaʻi o nā moena silicone me ka hoʻololi wela a ʻoi aku ka maikaʻi o ka ʻili.