Kua huri te hangarau keri i ngā taputapu tapahi PDC, arā, polycrystalline diamond compact, mā te whakapiki i te pai o te mahi me te whakaiti i ngā utu. Engari nō hea mai ngā taputapu tapahi PDC, ā, nā te aha i tino rongonui ai rātou?
I tīmata te hītori o ngā mīhini tapahi PDC i te tekau tau atu i 1950, i te wā i hangaia ai ngā taimana hangai. I hangaia ēnei taimana mā te tuku i te karāpiti ki ngā pēhanga me ngā pāmahana teitei, ka hangaia he rauemi he mārō ake i te taimana tūturu. I tere te rongonui o ngā taimana hangai i roto i ngā mahi ahumahi, tae atu ki te keri.
Heoi, he uaua te whakamahi i ngā taimana hangai i roto i te keri. He maha ngā wā ka whati, ka wehe rānei ngā taimana i te taputapu, ka whakaiti i tōna whai huatanga, ā, me whakakapi pinepine. Hei whakatika i tēnei raruraru, ka tīmata ngā kairangahau ki te whakamātautau i te whakakotahi i ngā taimana hangai me ētahi atu rauemi, pērā i te tungsten carbide, hei hanga i tētahi taputapu tapahi pakari ake, whai hua ake hoki.
I ngā tau 1970, i whakawhanakehia ngā mīhini tapahi PDC tuatahi, he paparanga taimana e herea ana ki tētahi papa tungsten carbide. I whakamahia tuatahitia ēnei mīhini tapahi i roto i te umanga keri, engari i tere te kitea o ō rātou painga i roto i ngā mahi keri hinu me te hau. I tere ake, i whai hua ake hoki ngā mahi keri nā ngā mīhini tapahi PDC, i whakaiti i ngā utu me te whakapiki ake i te hua.
I te whakapainga ake o te hangarau, ka tino matatau ake ngā taputapu tapahi PDC, me ngā hoahoa me ngā rauemi hou e whakanui ake ana i tō rātou pakari me te whai huatanga. I ēnei rā, e whakamahia ana ngā taputapu tapahi PDC i roto i te whānuitanga o ngā mahi keri, tae atu ki te keri waiariki, te keri maina, te hanga whare, me ētahi atu.
Nā te whakamahinga o ngā taputapu tapahi PDC kua piki ake te tere o ngā tikanga keri, pērā i te keri whakapae me te keri ahunga. Nā te pai ake o te mahi me te roa o ngā taputapu tapahi PDC i taea ai ēnei tikanga, ā, ka taea ai te keri tika ake, te whakahaeretia hoki.
Hei whakamutunga, he hītori whai kiko ngā taputapu tapahi PDC mai i te whanaketanga o ngā taimana hangai i ngā tau 1950. Nā tō rātou whanaketanga me te whanaketanga i arahi ki ngā whanaketanga nui o te hangarau keri, te whakapai ake i te whai huatanga, te whakaiti i ngā utu, me te whakawhānui ake i te whānuitanga o ngā tono. I te mea kei te tipu haere tonu te tono mō te keri tere me te whai hua ake, e mārama ana ka noho tonu ngā taputapu tapahi PDC hei wāhanga nui o te umanga keri.
Wā tuku: Maehe-04-2023
