Welding Technology nke PDC

Ndị na-egbutu PDC na-egosipụta isi ike dị elu, nkwụsi ike dị elu nke diamond, yana ezigbo mmetụta siri ike nke carbide cimented. A na-eji ya eme ihe n'ọtụtụ ebe n'ịgba ala ala, mmanụ na gas, na ngwá ọrụ ịkpụ. Okpomọkụ ọdịda nke polycrystalline diamond oyi akwa bụ 700C, yabụ, a ga-achịkwa okpomọkụ nke oyi akwa diamond n'okpuru 700C n'oge usoro ịgbado ọkụ. Usoro kpo oku na-arụ ọrụ dị mkpa na usoro brazing PDC. Dị ka usoro kpo oku si dị, usoro brazing nwere ike kewaa n'ime ọkụ brazing, vacuum brazing, vacuum diffusion bonding, elu-frequency induction brazing, laser beam welding, wdg.

PDC ire ọkụ brazing

Ịgba ọkụ n'ọkụ bụ usoro ịgbado ọkụ nke na-eji ire ọkụ sitere n'ọkụ gas na-emepụta maka ikpo ọkụ. Nke mbụ, jiri ire ọkụ na-ekpo ọkụ ahụ nchara, wee bugharịa ire ọkụ na PDC mgbe mmiri na-amalite ịgbaze. Isi usoro nke ire ọkụ brazing gụnyere ọgwụgwọ tupu weld, kpo oku, nchekwa ọkụ, oyi, ọgwụgwọ weld, wdg.

PDC vacuum brazing

Vacuum brazing bụ usoro ịgbado ọkụ na-ekpo ọkụ na-arụ ọrụ na ọnọdụ agụụ na ikuku na-enweghị oxidizing gas. Vacuum brazing bụ iji okpomọkụ na-eguzogide nke workpiece dị ka isi iyi ọkụ ka ọ dị na mpaghara na-eme ka oyi akwa polycrystalline dị jụụ iji mejuputa brazing na-ekpo ọkụ. Iji mmiri jụrụ oyi na-aga n'ihu n'oge usoro brazing iji hụ na a na-achịkwa okpomọkụ nke oyi akwa diamond n'okpuru 700 Celsius; na agụụ ogo na oyi na-atụ steeti brazing a chọrọ na-ala karịa 6. 65 × 10-3 Pa, na agụụ ogo na-ekpo ọkụ ala bụ ala karịa 1. 33 × 10-2 Pa. Mgbe ịgbado ọkụ, tinye workpiece. n'ime incubator maka ichekwa okpomọkụ iji kpochapụ nrụgide okpomọkụ na-emepụta n'oge usoro brazing. Ike shiee nke oghere brazing nkwonkwo kwụsiri ike, ike nkwonkwo dị elu, na nkezi ike shiee nwere ike iru 451.9 MPa.

PDC agụụ mgbasa njikọ

Vacuum mgbasa bonding bụ ime ka elu nke dị ọcha workpieces na agụụ nso onye ọ bụla ọzọ na elu okpomọkụ na elu nrụgide, atọm mgbasa nke ọ bụla ọzọ n'ime a dịtụ obere anya, si otú ejikọta abụọ akụkụ ọnụ.

Akụkụ kachasị mkpa nke njikọ mgbasa ozi:

1. ihe mmiri mmiri na-emepụta na brazing seam n'oge usoro ikpo ọkụ brazing

2. A na-edobe alloy mmiri mmiri ruo ogologo oge na okpomọkụ dị elu karịa okpomọkụ siri ike nke brazing filler metal nke mere na ọ na-esiwanye ike iji mee ka ọkpụkpụ brazing.

Usoro a dị irè nke ukwuu maka mkpụrụ osisi carbide cemented PDC na diamond, nke nwere ọnụọgụ mgbasawanye dị iche iche. Usoro njikọ mgbasa ozi oghere nwere ike imeri nsogbu ahụ nke PDC dị mfe ịdapụ n'ihi ọdịda dị nkọ na ike nke metal brazing filler. (n'oge mkpọpu mmiri, okpomọkụ na-abawanye, na ike nke brazing metal ga-ada nke ọma.)

Ọ bụrụ na ị nwere mmasị na ndị cutters PDC ma chọọ ozi ndị ọzọ na nkọwapụta, ị nwere ike ịkpọtụrụ anyị site na ekwentị ma ọ bụ mail n'aka ekpe, ma ọ bụ zipu ozi US na ala nke ibe ahụ.