3 Izinto ekufuneka uzazi malunga nePDC Brazing

Abasiki bePDC bagxininiswe kumzimba wentsimbi okanye we-matrix we-drill bit yePDC. Ngokwendlela yokufudumala, indlela yokutshisa iyakwazi ukwahlula kwi-flame brazing, i-vacuum brazing, i-vacuum diffusion bonding, i-high-frequency induction brazing, i-laser beam welding, njl. Namhlanje singathanda ukwabelana kancinci malunga nokuvutha komlilo wePDC.

Yintoni ukuvutha komlilo?

I-Flame brazing yindlela ye-welding esebenzisa ilangatye eliveliswa yigesi yokutshisa ukufudumeza. Inkqubo ephambili yokutshisa i-flame ibandakanya unyango lwangaphambili lwe-weld, ukufudumeza, ukugcinwa kobushushu, ukupholisa, unyango lwe-post-weld, njl.

Yintoni inkqubo yokuvutha komlilo wePDC?

1. Unyango lwangaphambili lwe-weld

(1) i-sandblast kwaye ucoce i-PDC cutter kunye ne-PDC drill bit body. I-PDC cutter kunye ne-drill bit kufuneka ingangcoliswa ngeoli.

(2) lungisa i-solder kunye ne-flux. Ngokuqhelekileyo sisebenzisa i-40% ~ 45% i-solder yesilivere ye-PDC yokuqhayisa. I-flux isetyenziselwa ukuthintela i-oxidation ngexesha lokugcoba.

2. Ukufudumeza kunye nokugcinwa kobushushu

(1) Tshisa i-PDC drill bit body kwisithando somlilo esiphakathi ukuya kuma-530℃.

(2) Emva kokufudumeza kwangaphambili, sebenzisa umpu wedangatye ukutshisa i-bit body kunye ne-PDC cutter. Siza kufuna imipu emibini yomlilo, enye yeyokufudumeza i-drill bit body kunye neyokufudumeza i-PDC cutter.

(3) Dissolve solder kwi-PDC recess kwaye uyifudumeze de i-solder inyibilike. Beka i-PDC kumngxuma we-concave, qhubeka ufudumeza i-drill bit body de i-solder iyanyibilika kwaye iqhume kwaye iphuphume, kwaye ngokukhawuleza ubaleke kwaye ujikeleze i-PDC ngexesha lenkqubo ye-soldering. Faka i-flux kwindawo apho i-PDC cutter idinga ukunyanyiswa ukuze ithintele i-oxidation.

3. Ukupholisa kunye nonyango lwasemva kwe-weld

(1). Emva kokuba ii-PDC cutters zicwilisiwe, beka i-PDC drill bit kwindawo yokugcina ubushushu ngexesha, kwaye upholise kancinci ubushushu be-drill bit.

(2) Emva kokupholisa i-drill bit ukuya kwi-50-60 °, sinokukhupha i-drill bit, i-sandblast kwaye ipholise. Khangela ngononophelo ukuba indawo ye-welding ye-PDC ifakwe ngokuqinileyo kwaye ingaba i-PDC idityanisiwe yonakele.

Yintoni iqondo lobushushu?

Iqondo lokushisa lokungaphumeleli kwe-polycrystalline diamond layer lijikeleze i-700 ° C, ngoko ubushushu bomgangatho wedayimane kufuneka ilawulwe ngaphantsi kwe-700 ° C ngexesha lenkqubo ye-welding, ngokuqhelekileyo i-630 ~ 650 ℃.

Ukuba unomdla kwiintonga ze-tungsten carbide kwaye ufuna ulwazi oluthe kratya kunye neenkcukacha, ungaQHAGAMSHELANA NATHI ngefowuni okanye ngeposi ekhohlo, okanye SITHUMELE MAIL emazantsi ephepha.