PDC, PCD rānei te pūwero? He aha te rerekētanga?
Ko te tikanga o te mata keri PDC ko te mata matua o te tapahi taimana Polycrystalline
Ko ngā puna wai tuatahi he puna wai, he poka pāpaku i keria ā-ringa i ngā wāhi e tata ana te papa wai ki te mata, he maha ngā wā he pakitara pereki, he pakitara rakau rānei e whakarārangi ana i te pakitara.
Ka hangaia ngā PDC mā te whakakotahi i ētahi paparanga o ngā taimana polycrystalline (PCD) me tētahi paparanga o te arai carbide sima i te pāmahana teitei me te pēhanga teitei.
Ko ngā PDC kei roto i ngā rauemi taputapu taimana tino pakari katoa.
Ko te tikanga o te PCD ko te Taimana Polycrystalline: Ko te tikanga ka hangaia ngā PCD mā te whakakoi i ngā tioata taimana kotahi rahi-iti i te pāmahana teitei me te pēhanga teitei. He pakari te pakaru o te PCD, he pumau hoki te pāmahana, ā, ka whakamahia hei hanga i ngā mata keri whenua.
Ko ngā painga o te PDC he ātete nui ki te kakahu o te taimana, ā, he pakari pai hoki o te carbide.
Ka tukuna e mātou ngā mata wiri PDC i hangaia ki te whānuitanga o ngā momo tapahi āhua, ngā momo tākai taimana polycrystalline (PDC) rānei i whakapakeketia ki te tinana.
He mea hanga ngā Tapahi PDC mai i te papa kāpira me te kirikiri taimana. Ko te wera nui o te 2800 nekehanga me te pēhanga nui o te 1,000,000 psi te mea e hanga ana i te kiato. Kei reira anō hoki he koranu cobalt, ā, he mea whakakorikori ki te tukanga sintering. Ka āwhina te cobalt ki te hono i te carbide me te taimana.
Ko te tikanga whānui, he kaha ake ngā kaitapahi nui (19mm ki te 25mm) i ngā kaitapahi iti. Heoi anō, ka taea e rātou te whakanui ake i ngā rerekētanga taipana.
Kua whakaatuhia he kaha ake te keri a ngā kaitapahi iti (8mm, 10mm, 13mm me te 16mm) i te ROP teitei ake i ngā kaitapahi nunui i roto i ētahi whakamahinga. Hei tauira, ko te kōhatu papatahi tētahi whakamahinga pēnei.
Hei tāpiri, he iti ake ngā tapahi ka puta mai i ngā tapahi iti, engari he nui ake ngā tapahi ka puta mai i ngā tapahi nunui. Tērā pea ka raru te horoi i ngā kōhao i ngā tapahi nunui mena kāore e taea e te wai keri te kawe i ngā tapahi ki runga.
(1) (2) Ngāwari, ngawari hoki, piri - He hanganga ka taea te keri pērā i te uku, te mārō, te gumbo me ngā onepū kāore i whakapūmautia.
(3) Ngā onepū kaha pēhi ngohengohe-waenga-iti, te kirikiri me ngā anhydrite me ngā paparanga mārō kua konatunatua.
(4) Te kaha pēhi waenga-waenga: onepu, tioka, anhydrite me te kirikiri.
(6) Pakari waenga - He kaha pēhi teitei ake me te onepū kore-koi, te kirikiri, te raima me te anhydrite.
(7) Mārō - He kaha pēhi teitei me ngā paparanga onepū, o te paru rānei.
(8) Tino mārō - He tino koi, he matotoru hoki ngā hanganga pērā i te kohatu quartzite me te toka puia.
HANGANGA TAPATAHI PDC
Kotahi te rahi matua o te tapahi PDC mō ngā momo hanga tino ngawari (1) ki te reo (4). Ka tohua te hanganga tapahi PDC penei:
2 – he 19mm te rahi o ngā tapahi o tēnei mata
3 – he 13 mm te whānui o ngā tapahi o tēnei mata
4 – he 8 mm te whānui o ngā tapahi o tēnei mata
Ngā moka PDC
Wā tuku: 31 o Ākuhata-2022