PDC kudzidzira

Background

Polycrystalline diamond compacts (PDC) yakashandiswa mumaindasitiri ekushandisa, kusanganisira kudhirowa kwedombo uye simbi machining application. Makompakiti akadaro aratidza mabhenefiti pamusoro pemamwe marudzi ekucheka zvinhu, senge nani kupfeka kuramba uye kukanganisa kuramba. Iyo PDC inogona kuumbwa nekunyudza madhaimani ega ega zvidimbu pamwe chete pasi pekumanikidzwa kwepamusoro uye tembiricha yepamusoro (HPHT) mamiriro, pamberi peiyo catalyst/solvent inosimudzira diamond-diamond bonding. Mimwe mienzaniso ye catalyst/solvents for sintered diamond compacts icobalt, nickel, iron, uye mamwe masimbi eBoka VIII. MaPDC anowanzo kuve nedhaimondi rinodarika makumi manomwe kubva muzana nehuwandu, uye zvikamu makumi masere kubva muzana kusvika makumi mapfumbamwe nesere kubva muzana ndizvo zvakajairika. PDC inosungirirwa kune substrate, nekudaro ichigadzira PDC cutter, iyo inowanzoiswa mukati, kana kuisirwa kune, mudziyo wepasi senge dhiri kana reamer.

PDC kudzidzira

PDC cutters inogadzirwa ne tungsten carbide substrate uye dhaimondi poda pasi pekupisa kwakanyanya uye kudzvanywa kwakanyanya. Cobalt inosungira. Leaching process inobvisa cobalt catalyst inosanganisira polycrystalline chimiro. Mhedzisiro itafura yedhaimondi ine yakagadziridzwa kuramba kusvibiswa kwemafuta uye kupfeka kweabrasive, zvichikonzera hupenyu hurefu hunobatsira hwekucheka.. Izvi zvinowanzopedzwa mumaawa anopfuura gumi pasi pemazana mashanu kusvika kumazana matanhatu nechoto chevacuum. Chinangwa cheleached ndechekusimudzira kuomarara kwePDC. Kazhinji ingori munda wemafuta PDC inotora tekinoroji iyi, nekuti nharaunda yekushanda yemunda wemafuta yakanyanya kuoma.

MuchidimbuNhoroondo

Mumakore ekuma1980, zvose GE Company (USA) uye Sumitomo Company (Japan) vakadzidza kubviswa kwecobalt kubva panzvimbo yekushanda yePDC mazino kuvandudza kushanda kwemazino. Asi havana kubudirira mune zvekutengeserana. Tekinoroji yakazogadziridzwa zvakare uye patented neHycalog（USA）. Zvakaratidzwa kuti kana zvinhu zvesimbi zvinogona kubviswa kubva pagomba rezviyo, kugadzikana kwekupisa kwemazino ePDC kuchavandudzwa zvikuru kuitira kuti bhiti rikwanise kudhiraivha zviri nani mumhando dzakaoma uye dzinokuvadza. Iyi tekinoroji yekubvisa cobalt inovandudza kusapfeka kwemeno ePDC mune yakanyanya abrasive hard rock formations uye inowedzera kuwedzera huwandu hwekushandisa kwePDC bits.