Ka mea paa o na huila wili

He mea koʻikoʻi ka mea hoʻopaʻa paʻa i ka hoʻopaʻa paʻa ʻana i nā ʻāpana abrasive, no laila e hōʻoiaʻiʻo ai i ka pōhaku wili i loaʻa nā waiwai mechanical koʻikoʻi e like me ka ikaika, ka paʻakikī, ke kūpaʻa a me ka pale wela. Hāʻawi pū ia i ka ikaika paʻa pono i ka abrasive i ka wā o ka wili. ʻEkolu mau ʻano kumu mua o nā kaula pōhaku wili: ma muli o ka ceramic, ka mea metala, a me ka resin-based. Hoʻomaopopo ʻia nā paʻa seramika no ko lākou mau waiwai kemika paʻa a me ke kū ʻana o ka wela. Eia nō naʻe, ʻaʻole kūpono ko lākou palupalu a me ka haʻahaʻa haʻahaʻa haʻahaʻa no nā kūlana koʻikoʻi o ka wili kaʻaahi, e pili ana i nā wikiwiki kiʻekiʻe, nā ukana kaumaha, nā wela kiʻekiʻe, a me nā haʻalulu ikaika. I kēia manawa, ʻaʻohe mea i hōʻike ʻia e pili ana i nā pōhaku wili seramika i hoʻohana ʻia i ka wili kaʻa.

Hiki i nā mea i hoʻopaʻa ʻia me ka metala ke hāʻawi aku i ka ikaika kiʻekiʻe, kiʻekiʻe ka thermal conductivity, a me ke kūpaʻa ʻaʻahu kiʻekiʻe i ka wili pōhaku. ʻO Jiang et al. hoʻomākaukau ʻia nā pōhaku wili metala [1] a me ka hao [2] me ka hoʻohana ʻana i ka metallurgy pauda. Ua hōʻike ʻia nā hoʻokolohua wili ʻana he 15 mau manawa ke kiʻekiʻe o ka lākiō wili o ka pōhaku wili hao ma mua o ka 686. Eia naʻe, ʻo ka ikaika kiʻekiʻe o ka paʻa metala he mea paʻakikī i ka hoʻopaʻa ʻana i ka wā o ka wili ʻana, a laila e hōʻike ana i ka abrasive a me ka hopena o ka wili ponoʻī ʻana o ka pōhaku. Eia kekahi, no ka nele o nā kaʻa wili kaʻa i nā kūlana no ka passivation wili pōhaku, ʻaʻohe pono o nā pōhaku wili metala i nā hana wili laina. Eia kekahi, he kiʻekiʻe ka mahana sintering o nā pōhaku wili metala, paʻakikī ke kaʻina hana, kiʻekiʻe ke kumukūʻai hana, a ʻilihune ka hoʻokele waiwai o ka pōhaku wili. I kēia manawa, ʻaʻohe manawa o nā pōhaku wili metala i hoʻohana ʻia i ka wili laina. I ka wā e hiki mai ana, e kālele ana ka noiʻi ʻana i ka hoʻohālikelike ʻana i ka ikaika a me ka hoʻomaʻamaʻa ponoʻī ʻana i nā pōhaku wili metala, e ʻimi ana i nā kumu kūʻai haʻahaʻa haʻahaʻa, a me ka hoʻoponopono ʻana i ke kaʻina hana. ʻO nā mea hoʻopili Resin, nona ka ikaika kiʻekiʻe, paʻakikī, a me nā kumu kūʻai haʻahaʻa haʻahaʻa, me kahi kaʻina hana maʻalahi, hoʻohana nui ʻia i ka hana abrasive. I kēia manawa, ʻo nā pōhaku wili (ka wili ikaika a me ka wikiwiki passive grinding) i hoʻolako ʻia ma nā kaʻa wili kaʻa no nā laina transit kaʻa ma ka home a ma ka honua holoʻokoʻa he mau pōhaku wili resin-based [3,4]. ʻOʻoleʻa nā kūlana wili kaʻa, a ʻoi aku ka kiʻekiʻe o ka mahana wili i ke kūlana wili maloʻo. No laila, hoʻohana nā pōhaku wili i nā resins phenolic me ke kūpaʻa wela kiʻekiʻe, ka hoʻopili maikaʻi ʻana, a me ka hoʻoheheʻe maʻalahi, a me nā ʻano hou i hoʻololi ʻia e like me ka epoxy, polyvinyl chloride, polyamide, polyvinyl ether, bismaleimide, a me nā resins phenolic i hoʻololi ʻia [5]. Hoʻohana pinepine ʻia ka polyphenol ether resins a me ka polyimide resins me ke kūpaʻa wela kiʻekiʻe a me nā waiwai mechanical [6]. ʻO Zhang et al. Ua aʻo ʻo [4] i nā waiwai wili o nā pōhaku wili resin phenolic ʻehā a ʻike ʻo ka hōʻoia ʻana i ka ikaika, paʻakikī, a me ka pale wela o ka resin ma nā wela kiʻekiʻe he mau mea koʻikoʻi no ka hoʻomākaukau ʻana i nā pōhaku wili kiʻekiʻe. ʻO nā hopena o Zhang et al. Ua hōʻike ʻo [7] i nā pōhaku wili haʻahaʻa (haʻahaʻa haʻahaʻa haʻahaʻa) ʻoi aku ka maikaʻi o ka hoʻomaʻamaʻa ponoʻī a me ka wehe ʻana i nā mea nui akā hiki ke puhi i ke kaʻaahi a maikaʻi ʻole ke pale ʻana i ka ʻaʻahu. ʻO ka mea ʻē aʻe, ʻo ka ikaika kiʻekiʻe (maʻiʻo mea hoʻopili kiʻekiʻe) hōʻike ʻia nā pōhaku wili i ke kūpaʻa maikaʻi a me ka lakio wili kiʻekiʻe akā maikaʻi ʻole ka hoʻokala ʻana iā ia iho. ʻO Zhang et al. [8] manaʻo ʻo ka debonding o ka abrasive/binder interface ke kumu nui o ka hoʻoheheʻe ʻia ʻana o ka alumina fused ʻeleʻele wili pōhaku abrasive, e alakaʻi ana i ka nui wili a me ka ratio wili. Hōʻike kēia mau ʻike i ka ikaika, ka paʻakikī, ka pale ʻana i ka wela, a me ka pulu o ka resin ma ka ʻili o nā mea heterogeneous (abrasives, fillers, etc.) pili pono i nā waiwai piha o ka pōhaku wili. No laila, he koʻikoʻi ʻepekema nui ke koho ʻana i nā resins me ka ikaika kiʻekiʻe, ka paʻakikī, ka pale ʻana i ka palaho wela, a me ka pulu ikaika, a me ka wehewehe ʻana i ke ʻano o ka hoʻopaʻa ʻana o ka resin / abrasive, resin / filler, a me nā pilina heterogeneous i loko o ka ʻōnaehana pōhaku wili.

[1] SUN Daming, JIANG Xiaosong, SUN Hongliang, a me al. ʻO ka Microstructure a me ka Mechanical Properties o Cu-ZTA Cermet i hoʻomākaukau ʻia e Vacuum Hot Pressing Sintering [J]. Hōʻike Noiʻi Mea Hana, 2020, 7(2): 26530.

[2] SUN Daming, JIANG Xiaosong, SUN Hongliang, a me al. ʻO ka Microstructure a me ka Mechanical Properties o Fe-ZTA Cermet i hoʻomākaukau ʻia e ka Vacuum Hot-pressed Sintering [J]. Hōʻike Noiʻi Mea Hana, 2020, 7(2): 26518.

[3] Hui Kaaahi Kina. Q/CR 1-2014. ʻO China Railway Corporation Enterprise Standard: Nā kikoʻī kikoʻī no ke kūʻai ʻana i ka huila wili no ke kaʻaahi wili kaʻaahi [S]. Pekina: China Railway Publishing House Co, LTD, 2014: 1-13.

[4]JI Yuan. Ka Haʻawina Pūnaehana i ka ʻenehana loiloi o ka huila wili no ka wili kaʻaahi [D]. Beijing: Ke Kula Kaiapuni ʻo Kina, 2019.

[5]ZHANG Guowen, HE Chunjiang, PEI Dingfeng. E aʻo i ka hopena o ka Phenolic Resin ma ka hana wili ʻana o ka huila wili kaʻaahi[J]. Ka Mana Kaaahi, 2015, 43(02): 21-24.

[6]WU Leitao. E aʻo e pili ana i ka hopena o ka Copper-Tin Alloy Powder ma nā Mechanical Properties a me ka hana wili o ka Resin Bond Superhard Products [D]. Zhengzhou: Henan University of Technology, 2011.

[7]ZHANG Wulin, FAN Xiaoqiang, ZHANG Pengfei, a me al. Ke ho'āʻo nei i ka hopena o ka ikaika o ka pōhaku wili ma ka hana wili kaʻaahi[J]. Tribology, 40(03): 385-394

[8]ZHANG Wulin, LIU Changbao, YUAN Yongjie, et al. Ke ʻimi nei i ka hopena o ka ʻaʻahu abrasive i ka hana wili o nā pōhaku wili kaʻaahi[J]. Nūpepa o nā Kaʻina Hana Hana, 2021, 64: 493-507.