3 Zvinhu Zvaunofanira Kuziva nezvePDC Brazing

PDC cutters yakashongedzwa kune simbi kana matrix muviri wePDC drill bit. Maererano nenzira yekupisa, nzira yekugadzira inogona kugoverwa mumoto wemoto, vacuum brazing, vacuum diffusion bonding, high-frequency induction brazing, laser beam welding, etc. The Flame brazing iri nyore kushanda uye inoshandiswa zvakanyanya. Nhasi tinoda kugovera zvishoma nezvePDC flame brazing.

Chii chinonzi kupisa moto?

Flame brazing inzira yewelding inoshandisa murazvo unogadzirwa negasi kupisa. Iyo huru nzira yekupisa moto inosanganisira pre-weld kurapwa, kupisa, kuchengetedza kupisa, kutonhora, post-weld kurapwa, nezvimwe.

Ndeipi maitiro ePDC flame brazing?

1. Pre-weld kurapwa

(1) sandblast uye chenesa PDC cutter uye PDC drill bit body. PDC cutter uye drill bit haifanirwe kusvibiswa nemafuta.

(2) gadzira solder uye flux. Isu tinowanzo shandisa 40% ~ 45% sirivha solder yePDC brazing. Iyo flux inoshandiswa kudzivirira oxidation panguva yekubhuroka.

2. Kupisa uye kuchengetedza kupisa

(1) Preheat iyo PDC drill bit body muchoto chepakati frequency kusvika ku530 ℃.

(2) Mushure mekupisa, shandisa pfuti yemoto kupisa bhiti muviri uye PDC cutter. Tichada pfuti mbiri dzemoto, imwe yekudziya kwemuviri wekuchera uye imwe yekudziya kwePDC cutter.

(3) Dissolve solder muPDC recess uye kupisa kusvika iyo solder yanyunguduka. Isa iyo PDC mugomba re concave, ramba uchipisa chibooreso chemuviri kusvikira solder yanyunguduka uye yayerera nekupfachukira, uye zvishoma nezvishoma jog uye kutenderedza PDC panguva yekushambadzira. Isa flux kunzvimbo uko PDC cutter inoda kugarwa kudzivirira oxidation.

3. Kutonhora uye post-weld kurapwa

(1). Mushure mekunge vacheki vePDC vaiswa brazed, isa PDC drill bit munzvimbo inochengetedza kupisa munguva, uye zvishoma nezvishoma kutonhorera tembiricha ye drill bit.

(2) Mushure mekutonhodza chibooreso kusvika pa50-60 °, tinogona kutora chibooreso, sandblast tochipukuta. Nyatsotarisa kana iyo PDC welding nzvimbo yakasungwa zvakasimba uye kana iyo PDC yakasvibiswa yakakuvadzwa.

Chii chinonzi kupisa kwekushisa?

Kutadza tembiricha yepolycrystalline diamond layer yakatenderedza 700 ° C, saka tembiricha yedhaimani layer inofanirwa kudzorwa pazasi 700 ° C panguva yewelding process, kazhinji 630 ~ 650 ℃.

Kana iwe uchifarira tungsten carbide rods uye uchida rumwe ruzivo uye ruzivo, unogona KUBATA NESU nerunhare kana tsamba kuruboshwe, kana kuti TUMUMA MAIL pazasi peji.