Hangarau Welding of PDC

Ko nga kaitapahi PDC e whakaatu ana i te tino pakeke, te kaha o te kakahu o te taimana, me te pai o te paanga o te carbide cimented. Kua whakamahia nuitia i roto i te keri whenua, te keri hinu me te hau, me nga taputapu tapahi. Ko te pāmahana kore o te paparanga taimana polycrystalline ko te 700°C, no reira me whakahaere te pāmahana o te paparanga taimana i raro iho i te 700°C i te wa o te mahi whakapiri. Ko te tikanga whakamahana he mahi nui i roto i te mahi whakawera PDC. E ai ki te tikanga whakawera, ka taea te wehewehea te tikanga whakawera ki te mura ahi, te whakakorikori, te honohono honohono, te whakahiatotanga teitei-auau, te raima laser, me era atu.

PDC mura mura

Ko te mura o te mura he tikanga weriweri e whakamahi ana i te mura o te mura o te hau mo te whakamahana. Tuatahi, whakamahia te mura hei whakamahana i te tinana rino, katahi ka nukuhia te mura ki te PDC ina timata te rewharewha ki te rewa. Ko te tukanga matua o te mura ahi ko te maimoatanga i mua i te weld, te whakamahana, te whakamahana wera, te whakamahana, te maimoatanga i muri i te weld, etc.

PDC korehau brazing

Ko te whakawera korehau he tikanga weriweri e whakamahana ana i te mea mahi i roto i te ahua korehau i roto i te hau karekau he hauwai. Ko te whakamaarama korehau he whakamahi i te wera parenga o te mea mahi hei puna wera i tenei wa ka whakamatao i te rohe te paparanga taimana polycrystalline ki te whakatinana i te wera wera nui. Te whakamahi i te whakamahana wai tonu i te wa o te whakamaarama hei whakarite kia whakahaerea te pāmahana o te paparanga taimana i raro iho i te 700°C; te tohu korehau i roto i te ahua makariri o te brazing e hiahiatia ana kia iti ake i te 6. 65 × 10-3 Pa, me te tohu korehau i roto i te ahua wera he iti iho i te 1. 33 × 10-2 Pa. I muri i te whakapiri, hoatu te mea mahi. ki roto i te incubator mo te whakamarumaru wera hei whakakore i te ahotea waiariki i puta mai i te wa e mahi ana te whakamahana. Ko te kaha o te kutikuti o nga hononga whakahiato korehau he tino pumau, he nui te kaha o te hononga, a ko te kaha o te kutikuti toharite ka eke ki te 451.9 MPa.

PDC marua tūringiringi hononga

Ko te herenga whakamaarama korehau he hanga i nga papa o nga mea mahi ma i roto i te korehau kia tata tetahi ki tetahi i te teitei o te pāmahana me te pehanga teitei, ka marara nga ngota ki a ratau i roto i te tawhiti iti, na reira ka hono tahi nga wahanga e rua.

Ko te ahuatanga tino nui o te honohono honohono:

1. te koranu wai i hanga i roto i te tui whakawera i te wa o te whakamahana whakawera

2. ka pupurihia te koranu wai mo te wa roa i te pāmahana teitei ake i te pāmahana totoka o te whakarewa whakakī whakakī kia whakamarokehia te waiariki ki te hanga i te tui parai.

He tino whai hua tenei tikanga mo te taputapu carbide cimented a PDC me te taimana, he rereke nga whakarea roha. Ka taea e te tukanga hononga honohono maruarua te raru he ngawari te taka o te PDC na te kaha o te maturuturu o te kaha o te whakarewa whakakī whakakī. (i te wa o te keri, ka piki ake te pāmahana, ka tino heke te kaha o te whakarewa.)

Mena kei te pirangi koe ki nga kaitapahi PDC me te hiahia ki etahi atu korero me nga korero taipitopito, ka taea e koe te WHAKAPAKI ki a matou ma te waea, ma te mēra ranei i te taha maui, ka tuku mai ranei i a matou MERA kei raro o te wharangi.