Babban firikwensin matsa lamba YN52S00027P1 ya dace da SK200-6 excavator na Shengang

◆ Domin kayan da ake amfani da su a cikin matsananci-high matsa lamba bawuloli, zafi magani da surface hardening yawanci amfani da su inganta extrusion juriya da kuma yashwa juriya.

1, maganin zafin jiki

Vacuum zafi magani yana nufin tsarin maganin zafi wanda aka sanya kayan aikin a cikin injin. Vacuum zafi magani ba ya haifar da iskar shaka, decarburization da sauran lalata a lokacin dumama, amma kuma yana da aikin tsarkakewa surface, ragewa da kuma ragewa. Ana iya cire hydrogen, nitrogen da oxygen da kayan ke sha yayin narkewa a cikin injin, kuma ana iya inganta inganci da aikin kayan. Misali, bayan injin zafi mai zafi na bawul ɗin allura mai matsananciyar matsa lamba da aka yi da W18Cr4V, tasirin bawul ɗin allurar yana ƙaruwa sosai, kuma a lokaci guda, kayan aikin injiniya da rayuwar sabis sun inganta.

2. Magani mai ƙarfi na saman

Don inganta aikin sassa, ban da canza kayan aiki, ana amfani da ƙarin hanyoyin jiyya na ƙarfafawa. Kamar quenching surface (huduwar harshen wuta, high da matsakaici mita dumama surface quenching, lamba lantarki dumama surface quenching, electrolyte dumama surface quenching, Laser lantarki katako dumama surface quenching, da dai sauransu), carburizing, nitriding, cyaniding, boronizing (TD hanya), Laser ƙarfafawa, sinadaran tururi jijiya (CVD hanya), jiki tururi jijiya (PVD hanya), plasma sinadaran tururi ajiya (PCVD hanya) plasma spraying, da dai sauransu.

Zubar da tururi ta jiki (hanyar PVD)

A cikin vacuum, ana amfani da hanyoyin jiki kamar evaporation, ion plating da sputtering don samar da ions karfe. Wadannan karfe ions ana ajiye a saman da workpiece samar da wani karfe shafi, ko amsa tare da reactor don samar da fili shafi. Ana kiran wannan tsarin jiyya jigon tururin jiki, ko PVD a takaice. Wannan hanya yana da abũbuwan amfãni daga low ajiya zazzabi, 400 ~ 600 ℃ magani zazzabi, kananan nakasawa da kadan tasiri a kan matrix tsarin da kaddarorin sassa. An ajiye Layer TiN akan bawul ɗin allura da aka yi da W18Cr4V ta hanyar PVD. Layer na TiN yana da tsayin daka sosai (2500 ~ 3000HV) da juriya mai girma, wanda ke inganta juriya na bawul, ba a lalata shi a cikin dilute hydrochloric acid, sulfuric acid da nitric acid, kuma yana iya kiyaye farfajiya mai haske. Bayan jiyya na PVD, murfin yana da daidaito mai kyau. Yana iya zama ƙasa kuma a goge shi, kuma ƙarancin saman sa shine Ra0.8µm, wanda zai iya kaiwa 0.01µm bayan gogewa.