Welding Technology na PDC

Masu yankan PDC suna da tauri mai tsayi, tsayin juriya na lu'u-lu'u, da ingantaccen tasiri tauri na siminti carbide. An yi amfani da shi sosai a aikin hako ƙasa, hako mai da iskar gas, da kayan aikin yanke. Matsakaicin gazawar Layer lu'u-lu'u polycrystalline shine 700 ° C, don haka zazzabi na lu'u-lu'u dole ne a sarrafa shi ƙasa da 700 ° C yayin aikin walda. Hanyar dumama tana taka muhimmiyar rawa a cikin tsarin brazing na PDC. Dangane da hanyar dumama, ana iya raba hanyar brazing zuwa brazing na harshen wuta, vacuum brazing, vacuum diffusion bonding, high-frequency induction brazing, Laser beam waldi, da dai sauransu.

PDC harshen wuta brazing

Harshen harshen wuta hanya ce ta walda wacce ke amfani da harshen wuta da konewar iskar gas ke haifarwa don dumama. Da fari dai, yi amfani da harshen wuta don dumama jikin karfe, sannan matsar da wutar zuwa PDC lokacin da ruwan ya fara narkewa. Babban tsari na brazing harshen wuta ya hada da pre-weld magani, dumama, adana zafi, sanyaya, bayan walda magani, da dai sauransu.

PDC vacuum brazing

Vacuum brazing hanya ce ta walƙiya wacce ke dumama kayan aikin a cikin yanayi mara kyau a cikin yanayi ba tare da iskar gas ba. Vacuum brazing shine a yi amfani da juriya na aikin aikin azaman tushen zafi yayin da a cikin gida yake sanyaya Layer lu'u-lu'u polycrystal don aiwatar da brazing mai zafin jiki. Yin amfani da ci gaba da sanyaya ruwa a lokacin aikin brazing don tabbatar da cewa ana sarrafa yawan zafin jiki na lu'u-lu'u a ƙasa 700 ° C; da injin digiri a cikin sanyi jihar brazing ake bukata ya zama ƙasa da 6. 65 × 10-3 Pa, da kuma injin digiri a cikin zafi jihar ne m fiye da 1. 33 × 10-2 Pa. Bayan waldi, saka workpiece. a cikin incubator don adana zafi don kawar da yanayin zafi da aka haifar yayin aikin brazing. Ƙarfin ƙaƙƙarfan ƙaƙƙarfan ƙaƙƙarfan ƙaƙƙarfan ƙaƙƙarfan ƙaƙƙarfan ƙaƙƙarfan ƙaƙƙarfan ƙarfi, ƙarfin haɗin gwiwa yana da girma, kuma matsakaicin ƙarfin ƙarfi zai iya kaiwa 451.9 MPa.

PDC vacuum diffusion bonding

Vacuum diffusion bonding shine sanya saman kayan aiki masu tsabta a cikin injin kusa da juna a babban zafin jiki da matsanancin matsin lamba, ƙwayoyin zarra suna yaɗuwa da juna a cikin ɗan ƙaramin nisa, don haka haɗa sassa biyu tare.

Mafi mahimmancin fasalin haɗin gwiwar yadawa:

1. da ruwa gami da aka kafa a cikin brazing kabu a lokacin da brazing dumama tsari

2. Ana adana gami da ruwa na dogon lokaci a yanayin zafi sama da zafin jiki mai ƙarfi na ƙarfe na brazing filler don ya zama mai ƙarfi da ƙarfi don samar da suturar brazing.

Wannan hanyar tana da tasiri sosai ga simintin simintin carbide na PDC da lu'u-lu'u, waɗanda ke da nau'ikan haɓakawa daban-daban. Tsarin haɗe-haɗe na vacuum na iya shawo kan matsalar da PDC ke da sauƙin faɗuwa saboda raguwar ƙarfin ƙarfen filler brazing. (lokacin hakowa, ana ƙara yawan zafin jiki, kuma ƙarfin ƙarfe na brazing zai ragu sosai.)

Idan kuna sha'awar masu yankan PDC kuma kuna son ƙarin bayani da cikakkun bayanai, kuna iya tuntuɓar mu ta waya ko wasiku a hagu, ko AIKA WASkon Amurka a kasan shafin.