He aha nā pōmaikaʻi o ka pepa graphite maʻalahi ma ke ʻano he mea hoʻopaʻa?

He aha nā pōmaikaʻi o ka pepa graphite maʻalahi ma ke ʻano he mea hoʻopaʻa?

    Pepa graphitei kēia manawa ua hoʻohana nui ʻia i ka ʻoihana uila uila kiʻekiʻe. Me ka hoʻomohala ʻana o ka mākeke, ua loaʻa ka pepa graphite i nā noi hou, e like mepepa graphite maʻalahihiki ke hoʻohana ʻia e like me nā mea hoʻopaʻa. No laila he aha nā mea maikaʻi o ka pepa graphite maʻalahi e like me ka mea e hoʻopaʻa ai? E hāʻawi mākou iā ʻoe i kahi hōʻike kikoʻī:
I kēia manawa, ʻo nā huahana pepa graphite hiki ke loaʻa i ke apo packing,kāʻei, ka paʻi maʻamau, ka pā i hoʻopaʻa ʻia e ka pā metala, nā gaskets like ʻole i hana ʻia me ka laminated (bonded) composite plate, etc. pale wela kiʻekiʻe, hōʻemi a me ka hoʻihoʻi ʻana.
Hana ʻia nā mea hoʻopaʻa kuʻuna maʻamau i asbestos, rubber, cellulose a me kā lākou composites. Eia nō naʻe, me ka hoʻomohala ʻana i ka ʻoihana, ua hoʻomaka ka hoʻohana nui ʻana o ka pepa graphite maʻalahi e like me nā mea hoʻopaʻa. He ākea ka pālākiō wela o ka pepa graphite maʻalahi, hiki ke piʻi i ka 200 ~ 450 ℃ i ka ea a me 3000 ℃ i ka vacuum a i ʻole ka hoʻohaʻahaʻa ʻana i ka lewa, a he liʻiliʻi ka coefficient o ka hoʻonui wela. ʻAʻole ia he brittleness a pohā ma ka wela haʻahaʻa a palupalu i ka wela kiʻekiʻe. ʻO kēia nā kūlana i loaʻa ʻole i nā mea hili kuʻuna. No laila, ua wehewehe ʻia ka pepa graphite maʻalahi ma ke ʻano he "sealing King".