Nā ʻokoʻa o ka PTFE a me ka PFA Butterfly Valve Material

(Ka wehewehe hōʻuluʻulu manaʻo)PTFE EPDM butterfly valve noho

ʻO Teflon PTFE ka mea i ʻike ʻia he polytetrafluoroethylene.Teflon PFA i ʻike ʻia he soluble polytetrafluoroethylene.Many kiwi kūʻai ʻaʻole maopopo loa i ʻoi aku ka maikaʻi o ka corrosion kū'ē no nā kiwi lele e hoʻohana ana i ka PTFE a me ka PFA? He aha nā pōmaikaʻi a me nā pōʻino o kēlā me kēia? ʻO ka ʻokoʻa o ka pale wela, ʻo wai ka mea ʻoi aku ka maikaʻi?
ʻOkoʻa ke ʻano
1.PFA: he copolymer o kahi liʻiliʻi o ka perfluoropropyl perfluorovinyl ether a me ka polytetrafluoroethylene.2.PTFE: he hui polymer i hana ʻia e ka polymerization o tetrafluoroethylene.
ʻO nā hiʻohiʻona likeʻole
Nā hiʻohiʻona PFA
(1) ʻO nā mea kristal, haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa.
([2)Porfuitity, oluolu e decompose a corrosive kinoea hana i ka wā decomposition. ʻAʻole ʻoi aku ka mahana o ka hoʻoheheʻe ʻana ma mua o 475 ° C, ua hoʻomehana ʻia ka mold i 150 - 200 ° C, a ʻaʻole liʻiliʻi ke kūʻē ʻana o ka ʻōnaehana ninini i ka kahe waiwai.
(3 Trasucent pelles, ijection molding a extrusion molding. Molding temperature is 350-400C, 475 ℃ a ma luna aʻe he maʻalahi ke kumu i ka ʻulaʻula a i ʻole blistering. E nānā i ka paʻakikī o ka demolding.

(4) Ma muli o ka hopena ʻino o ka mea hoʻoheheʻe ʻia ma luna o ke metala, pono ka hana lōʻihi i ka chrome plating ma nā ʻano mold.PTFE.

ʻO ke ʻano o ka PTFE

(1) Kūlana wela kiʻekiʻe: lōʻihi-hoʻohana wela wela 200~260 ℃;

(2) Ke pale wela haʻahaʻa: ʻoi aku ka palupalu ma -100 ℃;

(3) Ke kū'ē i ka corrosion: kū'ē i ka aqua regia a me nā mea hoʻoheheʻe organik a pau;

(4) Kūleʻa i ka wā: ke ola ʻelemakule maikaʻi loa o nā plastics;
(5) Lubrication kiʻekiʻe: me ka liʻiliʻi liʻiliʻi o ka friction (0.04) ma waena o nā plastics;
(6) Non-sticky: Loaʻa iā ia ka liʻiliʻi liʻiliʻi ma waena o nā mea paʻa me ka ʻole e pili ana i kekahi mea. Summary
ʻO ka ʻokoʻa nui loa, ʻoi aku ka maʻalahi o ka PFA i ka hana a ʻoi aku ka pipiʻi ma mua o ka PTFE, akā i ka hoʻomaʻamaʻa ʻana, ʻoi aku ka maikaʻi o ka PTFE i ka corrosion resistaran a ʻoi aku ka kūʻē i nā wela kiʻekiʻe.
ʻO Sansheng Fluorine Plastics Technology kahi mea hana industial a me ka mea hoʻolako i nā kīwaha butterfly ma Kina, e hana ana i ka PTFE a me ka PFAlined butterfly valves, inā he mau nīnau kāu e pili ana i nā valves butterfly a i ʻole noi no ka ʻōlelo, e ʻoluʻolu e kelepona mai iā mākou.+8615067244404