I-Welding Technology yePDC

Abasiki bePDC babonisa ubunzima obuphezulu, ukuxhathisa okuphezulu kwedayimani, kunye nefuthe elihle lokuqina kwekhabhide enesamente. Isetyenziswe ngokubanzi kwi-geological drilling, i-oyile kunye negesi yokwemba, kunye nezixhobo zokusika. Iqondo lokushisa lokungaphumeleli kwe-polycrystalline diamond layer yi-700 ° C, ngoko ubushushu bomgangatho wedayimane kufuneka ilawulwe ngaphantsi kwe-700 ° C ngexesha lenkqubo ye-welding. Indlela yokufudumeza idlala indima eqinisekileyo kwinkqubo yokuqhafaza kwePDC. Ngokwendlela yokufudumeza, indlela yokutshisa inokwahlulwa ibe yi-flame brazing, i-vacuum brazing, i-vacuum diffusion bonding, i-high-frequency induction brazing, i-laser beam welding, njl.

Ukuvutha komlilo wePDC

I-Flame brazing yindlela ye-welding esebenzisa ilangatye eliveliswa yigesi yokutshisa ukufudumeza. Okokuqala, sebenzisa ilangatye ukutshisa umzimba wentsimbi, emva koko uhambise ilangatye kwi-PDC xa i-flux iqala ukunyibilika. Inkqubo ephambili yokutshisa i-flame ibandakanya unyango lwangaphambili lwe-weld, ukufudumeza, ukugcinwa kobushushu, ukupholisa, unyango lwe-post-weld, njl.

PDC vacuum brazing

I-vacuum brazing yindlela ye-welding etshisa i-workpiece kwindawo yokufunxa kwi-atmosfera ngaphandle kwe-oxidizing gas. Ivacuum brazing kukusebenzisa ubushushu obuxhathisayo bomsebenzi njengomthombo wobushushu ngeli xesha ekuhlaleni kupholisa umaleko wedayimani wepolycrystalline ukuphumeza ubushushu obuphezulu. Ukusebenzisa ukupholisa kwamanzi okuqhubekayo ngexesha lenkqubo yokuqhayisa ukuqinisekisa ukuba ubushushu bomgangatho wedayimane bulawulwa ngaphantsi kwe-700 ° C; isidanga vacuum kwimeko ebandayo yokubrazing kufuneka ibe ngaphantsi kwe 6. 65 × 10-3 Pa, kunye isidanga vacuum kwimeko eshushu lingaphantsi 1. 33 × 10-2 Pa. Emva welding, beka workpiece kwi-incubator yokugcina ubushushu ukuphelisa uxinzelelo lwe-thermal oluveliswa ngexesha lenkqubo yokuqhaqha. Amandla okucheba amajoyinti okucheba okufunxayo azinzile, amandla adibeneyo aphezulu, kwaye umyinge wamandla wokucheba unokufikelela kwi-451.9 MPa.

PDC vacuum diffusion bonding

Ukudityaniswa kwe-vacuum kukwenza umphezulu wezixhobo zokusebenza ezicocekileyo kwindawo yokucoca ekufutshane enye kwenye kubushushu obuphezulu kunye noxinzelelo oluphezulu, iiathomu zisasazeke enye kwenye kumgama omncinci ngokwentelekiso, ngaloo ndlela zidibanisa iindawo ezimbini kunye.

Olona phawu lubalulekileyo lwe-diffusion bonding:

1. i-alloy ye-liquid eyenziwe kwi-brazing seam ngexesha lokufudumala kwenkqubo yokufudumala

2. i-alloy ye-liquid igcinwe ixesha elide kwiqondo lokushisa elingaphezulu kwe-solidus ye-brazing filler metal ukwenzela ukuba i-isothermally iqiniswe ukwenza i-brazing seam.

Le ndlela iyasebenza kakhulu kwi-PDC's cemented carbide substrate kunye nedayimani, ene-coefficients yokwandiswa eyahlukileyo kakhulu. Inkqubo ye-vacuum diffusion bonding inokoyisa ingxaki yokuba i-PDC ilula ukuwa ngenxa yokuhla okubukhali kumandla esinyithi sokuqhafaza. (ngexesha lokubhoboza, iqondo lokushisa liyenyuka, kwaye amandla ensimbi yokuqhafaza aya kuhla ngokukhawuleza.)

Ukuba unomdla kwi PDC cutters kwaye ufuna ulwazi oluthe vetshe kunye neenkcukacha, UNGAQHAGAMSHELANA NATHI ngefowuni okanye ngeposi ekhohlo, okanye SITHUMELE MAIL emazantsi ephepha.