Ikoranabuhanga ryo gusudira rya PDC

Amashanyarazi ya PDC agaragaza ubukana bwinshi, kwihanganira kwambara cyane kwa diyama, hamwe ningaruka nziza ya karbide ya sima. Yakoreshejwe cyane mubucukuzi bwa geologiya, gucukura peteroli na gaze, nibikoresho byo gutema. Ubushyuhe bwo kunanirwa bwa polycrystalline ya diyama ni 700 ° C, bityo ubushyuhe bwurwego rwa diyama bugomba kugenzurwa munsi ya 700 ° C mugihe cyo gusudira. Uburyo bwo gushyushya bugira uruhare rukomeye mubikorwa bya PDC. Ukurikije uburyo bwo gushyushya, uburyo bwo gusya burashobora kugabanywamo gucana flame, brazing vacuum, guhuza vacuum diffusion, brazing ya induction inshuro nyinshi, gusudira laser beam, nibindi.

Urumuri rwa PDC

Flame brazing nuburyo bwo gusudira bukoresha urumuri ruterwa no gutwika gaze kugirango ushushe. Ubwa mbere, koresha urumuri kugirango ushushe umubiri wibyuma, hanyuma wimure urumuri kuri PDC mugihe flux itangiye gushonga. Inzira nyamukuru yo gutwika flame ikubiyemo kuvura mbere yo gusudira, gushyushya, kubika ubushyuhe, gukonjesha, kuvura nyuma yo gusudira, nibindi.

PDC vacuum brazing

Vacuum brazing nuburyo bwo gusudira bushyushya igihangano cyumwanya wa vacu mu kirere nta okiside gaze. Vacuum brazing ni ugukoresha ubushyuhe bwo guhangana nakazi nkibikoresho byubushyuhe hagati aho bikonjesha igice cya diyama ya polycrystalline kugirango ushyire mubikorwa ubushyuhe bwo hejuru. Gukoresha amazi akomeje gukonjesha mugihe cyo gushakisha kugirango ubushyuhe bwurwego rwa diyama bugenzurwe munsi ya 700 ° C; impamyabumenyi ya vacuum muburyo bukonje bwo gukonjesha isabwa kuba munsi ya 6. 65 × 10-3 Pa, naho dogere ya vacuum muri leta ishyushye iri munsi ya 1. 33 × 10-2 Pa. Nyuma yo gusudira, shyira urupapuro. muri incubator yo kubika ubushyuhe kugirango ikureho ubushyuhe bwumuriro butangwa mugihe cyo gushakisha. Imbaraga zogosha zingingo zifata vacuum zirahagaze neza, imbaraga zifatanije ni nyinshi, kandi impuzandengo yo gukata irashobora kugera kuri 451.9 MPa.

PDC vacuum ikwirakwizwa

Guhuza Vacuum ni ugukora ubuso bwibikorwa bisukuye mu cyuho cyegeranye hagati yubushyuhe bwinshi n’umuvuduko mwinshi, atome ikwirakwira mu ntera ntoya, bityo igahuza ibice bibiri hamwe.

Ikintu cyibanze kiranga gukwirakwiza:

1. ibinyobwa bisukuye byakozwe muburyo bwo gutwika

2. ibinyobwa bisukuye bibikwa umwanya muremure mubushyuhe burenze ubushyuhe bwa solidus bwicyuma cyuzuza ibyuma kuburyo byakomejwe muburyo bwo gukora ikariso.

Ubu buryo ni ingirakamaro cyane kuri PDC ya sima ya karbide substrate na diyama, hamwe na coefficient zitandukanye zo kwaguka. Inzira ya vacuum ikwirakwiza irashobora gutsinda ikibazo PDC yoroshye kugwa kubera kugabanuka gukabije kwimbaraga zicyuma cyuzuza. (mugihe cyo gucukura, ubushyuhe buriyongera, kandi imbaraga zicyuma zishakisha zizagabanuka cyane.)

Niba ushishikajwe no gukata PDC ukaba ushaka ibisobanuro byinshi nibisobanuro birambuye, urashobora kutwandikira ukoresheje terefone cyangwa amabaruwa ibumoso, cyangwa UKOHEREZA MAIL US hepfo yurupapuro.