Welding Technology yePDC

PDC cutters inoratidzira kuomarara kwepamusoro, kupfeka kwakanyanya kuramba kwedhaimondi, uye kunaka kusimba kwekuoma kwe simende carbide. Yakave ichishandiswa zvakanyanya mukuchera geological, kuchera mafuta uye gasi, uye maturusi ekucheka. Kutadza tembiricha yepolycrystalline diamond layer ndeye 700 ° C, saka tembiricha yedhaimani layer inofanirwa kudzorwa pazasi 700 ° C panguva yekushongedza. Iyo yekudziya nzira inoita basa rakasarudzika muPDC brazing process. Zvinoenderana neiyo nzira yekudziya, iyo nzira yekushongedza inogona kukamurwa kuita murazvo wemoto, vacuum brazing, vacuum diffusion bonding, yakakwirira-frequency induction brazing, laser beam welding, nezvimwe.

PDC murazvo wemoto

Flame brazing inzira yewelding inoshandisa murazvo unogadzirwa negasi kupisa. Chekutanga, shandisa murazvo kupisa muviri wesimbi, wozofambisa murazvo kuPDC kana flux ikatanga kunyungudika. Iyo huru nzira yekupisa moto inosanganisira pre-weld kurapwa, kupisa, kuchengetedza kupisa, kutonhora, post-weld kurapwa, nezvimwe.

PDC vacuum brazing

Vacuum brazing inzira yewelding inopisa iyo workpiece muvacuum state mumhepo isina oxidizing gasi. Vacuum brazing ndeye kushandisa kupisa kwekupisa kweiyo workpiece senzvimbo yekupisa panguva ino inotonhorera iyo polycrystalline diamond layer kuti iite yakakwirira-tembiricha brazing. Kushandisa kuenderera kutonhora kwemvura panguva yekugadzira brazing kuve nechokwadi chekuti tembiricha yedhaimani layer inodzorwa pasi pe700 ° C; iyo vacuum dhigirii munzvimbo inotonhora yebrazing inodiwa kuti ive yakaderera kupfuura 6. 65 × 10-3 Pa, uye dhigirii rekutsvaira munzvimbo inopisa yakaderera kupfuura 1. 33 × 10-2 Pa. Mushure mekuputika, isa workpiece mune incubator yekuchengetedza kupisa kuti ibvise kushushikana kwekushisa kunogadzirwa panguva yekugadzira. Simba rekugera revacuum brazing joints rakagadzikana, simba rekubatana rakakwira, uye avhareji simba rekugera rinogona kusvika 451.9 MPa.

PDC vacuum diffusion bonding

Vacuum diffusion bonding ndeyekuita iyo nzvimbo yeakachena workpieces mune vacuum padhuze kune imwe neimwe pane yakanyanya tembiricha uye yakanyanya kudzvanywa, maatomu anopararira kune rimwe nerimwe mukati mechinhambwe chidiki, nekudaro achibatanidza zvikamu zviviri pamwechete.

Chinhu chakanyanya kukosha chekupararira bonding:

1. iyo alloy yemvura yakaumbwa mumusono webrazing panguva yekudziya kupisa

2. iyo alloy yemvura inochengetwa kwenguva yakareba pane tembiricha yakakwira kupfuura solidus tembiricha yebrazing filler simbi kuitira kuti isothermally solidified kuti iite brazing seam.

Iyi nzira inoshanda zvakanyanya kuPDC's cemented carbide substrate nedhaimondi, idzo dzine akasiyana akasiyana ekuwedzera coefficients. Iyo vacuum diffusion bonding process inogona kukunda dambudziko rekuti PDC iri nyore kudonha nekuda kwekudonha kwakapinza musimba rebrazing filler simbi. (panguva yekuchera, tembiricha inowedzera, uye kusimba kwesimbi yesimbi inodonha zvakanyanya.)

Kana iwe uchifarira PDC cutters uye uchida rumwe ruzivo uye ruzivo, unogona KUTITA NEI runhare kana tsamba kuruboshwe, kana kuti TUMUMA MAIL pazasi pepeji.