Nā Pōmaikaʻi Kūikawā o ka Green Silicon Carbide Micropowder i nā Mea Uhi
Inā ua hana mua ʻoe me nā mea hana ʻoihana, ua lohe maoli nō ʻoe icarbide silicon ʻōmaʻomaʻoHe mea paʻakikī loa kēia mea i ka honua o ka abrasive, ʻo ka lua wale nō ia o ka daimana a me ka boron carbide i ka paʻakikī, i hoʻohana nui ʻia no ka wili ʻana a me ka ʻoki ʻana. Akā, ʻaʻole paha ʻoe i noʻonoʻo i ka wā e hana ʻia ai i pauka maikaʻi micron a hoʻohui ʻia i nā mea uhi, hiki ke lilo i mea kūpono loa, e lawe mai ana i nā hopena he nui i manaʻo ʻole ʻia a kupaianaha. I kēia lā, e wāwahi kākou iā ia a kūkākūkā i kona mau pono nui ma ke kahua uhi.
Pōmaikaʻi Mua: Paʻakikī! Paʻakikī Loa!—Ke Kū'ē ʻAʻahu Kūlike ʻole
ʻO kēia ke kumu o kona ʻano kūlohelohe. He paʻakikī maoli ka silicon carbide ʻōmaʻomaʻo; ʻo ka hoʻohui ʻana i nā uhi e like me ka hāʻawi ʻana i ka uhi i kahi "pālule hao." E noʻonoʻo e pili ana, he aha ka mea e makaʻu nui ai nā uhi? ʻO ka ʻānai ʻana. No ka laʻana, ua hoʻopilikia mau ʻia nā papahele hale hana i ka wili ʻana a me ke kahakaha ʻana o nā forklifts a me nā kāmaʻa kaumaha; ke hana mau nei nā mīkini eli me ka ore a me ke one.
I kēia manawa, hiki ke lilo koke nā uhi maʻamau i mea ʻino a ʻili ʻia, akā ʻo nā uhi me nā microparticles silicon carbide ʻōmaʻomaʻo i hoʻohui ʻia e hōʻike ana i ka paʻakikī i hoʻonui nui ʻia. ʻO kēlā mau ʻāpana abrasive waho e hoʻāʻo nei e ʻoki i kahi papa pena? E kala mai, pono lākou e hala i kēia mau microparticles paʻakikī loa. Hana lākou e like me nā "pale liʻiliʻi" paʻakikī, i hoʻolaha like ʻia ma loko o ka uhi ʻana, e pale pololei ana i ka ʻaʻahu a me ka haehae. No laila, ma nā wahi a pau e pono ai ke kū'ē ʻana i ka ʻaʻahu, e like me nā papahele, nā laina hōʻuluʻulu, nā silos, a me nā conveyors screw, ʻo ka hoʻohana ʻana iā ia hiki ke hoʻolōʻihi i ke ola o ka uhi ʻana i nā manawa he nui, e mālama ana i nā kumukūʻai mālama nui a me nā hoʻololi.
ʻO ka lua o ka pono: Paʻa e like me ka pōhaku—kūpaʻa maikaʻi loa i ka mahana kiʻekiʻe a me ke kūpaʻa wela
He mea kēia i hiki ʻole i nā mea hoʻopihapiha ʻē aʻe ke hoʻohālikelike.ʻO ka carbide silicon ʻōmaʻomaʻoua hana ʻia i loko o kahi umu uila wela kiʻekiʻe ma luna o 2000 degere Celsius, no laila he kūpaʻa ia i ke ahi. Ke hoʻohui ʻoe iā ia i nā uhi pale wela kiʻekiʻe, ʻoiai inā hiki ka mahana ambient i 500-600 degere Celsius a ʻoi aku paha, e mau ana ia me ka ʻole o ka loli, e mālama ana i kahi ʻano paʻa loa a ʻaʻole e pala a wili paha i ka wā e hoʻomehana ai.
No ka hoʻohālikelike ʻana, ua like kekahi mau mea hoʻopihapiha me ka hau, e heheʻe ana i nā mahana kiʻekiʻe; ʻoiai ʻo ka silicon carbide micropowder ʻōmaʻomaʻo e like me ka pōhaku, e lilo ana i mea ikaika me ka wela. ʻO kēia ʻano e kūpono loa ia no ka hoʻohana ʻana i nā wahi wela kiʻekiʻe e like me nā paipu hoʻopau mīkini, nā paila ʻoihana, nā mea hoʻololi wela, a me nā lua ahi. Noho paʻa ka uhi ʻana i kahi manawa lōʻihi, me ka ʻole o ka haki a i ʻole ka pehu ʻana, e pale pono ana i ka substrate—he pono koʻikoʻi.
ʻO ke kolu o ka pono: Paʻa maikaʻi loa—pili maikaʻi loa a me ka ikaika o ka uhi ʻana
Me he mea lā he kū'ē kēia i ka manaʻo maʻamau: pehea lā e hiki ai i kēlā mau ʻāpana laumania a paʻakikī ke hoʻoikaika i ka hoʻopili ʻana? Aia ka mea huna i ko lākou ʻano kihi a me ka hoʻolaha like ʻana.
Ma lalo o kahi microscope,pauka micropoda silicon carbide ʻōmaʻomaʻoʻaʻole ia he poepoe kūpono, akā he polygon me nā ʻaoʻao ʻoi. Ke hui pū ʻia me ka resin coating, hana kēia mau ʻaoʻao ʻoi e like me nā maiʻuu liʻiliʻi he nui ʻole, e paʻa pono ana i ka substrate a i ka manawa like e hana ana i kahi pilina mechanical ikaika me ka matrix resin. Ua like kēia me ke kū ʻana ma luna o ka hau laumania; ʻaʻole paʻa nā kāmaʻa pālahalaha, akā hiki i nā kāmaʻa me nā kui he nui ma ke kapuaʻi ke komo pono.
No laila, ʻo nā uhi e hoʻohana ana i kēia mea e hōʻike pinepine ana i ka pipili ikaika a ʻaʻole i maʻalahi i ka ʻili ʻana. Eia kekahi, hoʻomaikaʻi nui ia i ka ikaika holoʻokoʻa a me ka ikaika compressive o ka uhi, e hoʻolilo ana i mea palupalu a ʻoi aku ka pale ʻana i ka hopena.
ʻO ka pono ʻehā: ʻO ka hoʻokele uila a me ka wela maikaʻi loa - hana kū hoʻokahi
Ma waho aʻe o ka "pale kino" i ʻōlelo ʻia ma luna, ʻoi aku hoʻi ia i ka "hana." Loaʻa i ka silicon carbide ʻōmaʻomaʻo kekahi ʻano o ka conductivity thermal. ʻO ka hoʻohui ʻana i nā uhi hiki ke hoʻomaikaʻi i ka hopena hoʻoheheʻe wela. No ka laʻana, i ka wā e hoʻopili ʻia ai i nā lako e pono ai ka hoʻoheheʻe wela, hiki ke hoʻokele like ʻia ka wela, e pale ana i ka wela nui kūloko.
Eia kekahi, ma ka kaohi ʻana i kona nui i hoʻohui ʻia a me ka nui o ka ʻāpana, hiki ke hoʻololi ʻia ka conductivity uila o ka uhi ʻana i kekahi ʻano. He mea waiwai nui kēia no nā noi kūikawā e pono ai nā waiwai anti-static, e like me ka papahele epoxy i nā hale hana uila, no ka mea, pale ia i nā pilikia e pili ana i ka hōʻiliʻili uila static.
ʻO ka Pōmaikaʻi ʻElima: Ke Aliʻi o ke Kumukūʻai Kūpono - Hoʻokele Waiwai a me ka Pono
I ke kamaʻilio ʻana no ke kālā, ʻoi aku ka pono. Manaʻo paha ʻoe he pipiʻi loa kēlā huahana ikaika, ʻeā? ʻAʻole loa. Ke hoʻohālikelike ʻia me kekahi mau nanomaterials kiʻekiʻe a i ʻole nā mea hoʻohui kūikawā, ʻo ka silicon carbide micropowder ʻōmaʻomaʻo kahi laʻana maikaʻi loa o ka "kiʻekiʻe kiʻekiʻe ma ke kumu kūʻai haʻahaʻa."
He paʻa kona kumu, ua oʻo kāna hana hana, a ʻoi aku ka maʻalahi o ke kumukūʻai. Eia nō naʻe, ʻo ka hoʻomaikaʻi ʻana e lawe mai ai iuhi ʻana he hana maoli a koke ka hana. Ke hoʻolilo nei i kahi kālā liʻiliʻi e hoʻokō i nā hopena maikaʻi loa, e hoʻomaikaʻi nui ana i ka hana huahana koʻikoʻi ma ke kumu kūʻai haʻahaʻa - ʻo wai ka ʻenekinia a i ʻole ka luna kūʻai e mahalo ʻole i kēia ʻano "kūʻai kūpono"?
Ma hope o ke kūkākūkā ʻana i kona mau pono, e kamaʻilio kākou e pili ana i ka hoʻohana pono ʻana iā ia, kahi mea e pono ai ka noʻonoʻo ʻana:
He mea nui ke koho ʻana i ka nui o nā ʻāpana: Pono ʻoe e "koho i ka nui kūpono o nā ʻāpana no ka huahana kūpono." No kahi uhi laumania a lahilahi, koho i kahi pauka maikaʻi (e laʻa, F800 a ʻoi aku paha); no kahi uhi mānoanoa kahi i ʻae ʻia ai kahi ʻili ʻoi aku ka paʻakikī a makemake ʻia ke kūpaʻa ʻana i ka ʻaʻahu, ʻoi aku ka maikaʻi o ka nui o nā ʻāpana waena a paʻakikī (e laʻa, F180-F400).
He mea koʻikoʻi ka hoʻopuehu ʻana: he ʻano "paʻakikī" kēia pauka a ke ʻano nei e hui pū. Pono ʻoe e ʻimi i kahi ala e hōʻoia ai ua hoʻopuehu like ʻia ma loko o ka uhi. Inā ʻaʻole i hui like ʻia a hana i nā puʻupuʻu, e lilo ia i nāwaliwali i ka uhi ʻana. No laila, he mea nui nā lako a me nā kaʻina hana hoʻopuehu maikaʻi.
He mea nui ka hui like ʻana: pono ia e "hoʻokō" i ka resin a me nā mea hoʻohui. ʻAʻole pono kona hoʻohui ʻana e hoʻopilikia i nā waiwai ʻē aʻe o ka uhi ʻana, e like me ke kūpaʻa ʻana i ka pala a i ʻole ka palupalu.
I ka pōkole,pauka micropoda silicon carbide ʻōmaʻomaʻoUa like ia me kahi hale mana haʻahaʻa i nā mea uhi. ʻAʻole ia e hōʻike iā ia iho, akā mālama mālie i ka hae o ke kūpaʻa ʻana i ka ʻaʻahu me kona paʻakikī kiʻekiʻe loa, pale i ka hana wela kiʻekiʻe me kona kūpaʻa wela, a hoʻonui i ka "paʻa" o ka uhi me kona mau ʻaoʻao ʻoi. I hui pū ʻia me kāna hana maikaʻi loa a me ka uku kūpono, ua lilo ia i "mea kaua" koʻikoʻi i loko o ka arsenal o nā ʻenekinia i ka wā e hoʻolālā ai i nā uhi hana kiʻekiʻe.
I ka manawa aʻe e hālāwai ai ʻoe me kahi pilikia uhi e pono ai ke kūpaʻa i ka ʻaʻahu, ke kūpaʻa i ka mahana kiʻekiʻe, a i ʻole ka ikaika kiʻekiʻe, e noʻonoʻo i kēia "kanaka paʻakikī" ʻōmaʻomaʻo - ka silicon carbide micropowder ʻōmaʻomaʻo; ʻo ia paha ka pane āu e ʻimi nei.