Ihe mmetụta nrụgide nrụgide dị elu YN52S00027P1 dabara maka SK200-6 excavator nke Shengang.

◆ Maka ihe ndị a na-eji na valvụ ultra-high pressure, a na-ejikarị ọgwụgwọ okpomọkụ na ihe ike elu mee ihe iji meziwanye nkwụsị extrusion ha na nkwụsị nke mbuze.

1, ọgwụgwọ okpomọkụ ikuku

Ngwọta ikpo ọkụ na-ezo aka na usoro ọgwụgwọ okpomọkụ nke etinyere workpiece na oghere. Ngwọta na-ekpo ọkụ na-ekpo ọkụ adịghị emepụta oxidation, decarburization na corrosion ndị ọzọ n'oge okpomọkụ, kamakwa ọ na-arụ ọrụ nke ime ka elu dị ọcha, nkwụsị na nkwụsị. Enwere ike iwepụ hydrogen, nitrogen na oxygen nke ihe ahụ na-etinye n'oge a na-agbaze n'ime oghere, a pụkwara imeziwanye àgwà na arụmọrụ nke ihe ahụ. Dịka ọmụmaatụ, mgbe ọgwụgwọ okpomọkụ na-ekpo ọkụ nke valvụ agịga ultra-high pressure mere nke W18Cr4V, mmetụta uche nke valvụ agịga na-abawanye nke ọma, ma n'otu oge ahụ, a na-emeziwanye ihe eji arụ ọrụ na ndụ ọrụ.

2. ọgwụgwọ na-ewusi elu elu

Iji meziwanye arụmọrụ nke akụkụ, na mgbakwunye na ịgbanwe ihe, a na-anabata usoro ọgwụgwọ ndị ọzọ na-ewusi elu. Dị ka elu quenching (ọkụ ọkụ, elu na ọkara ugboro kpo oku elu quenching, kọntaktị eletriki kpo oku elu quenching, electrolyte kpo oku elu quenching, laser electron beam kpo oku elu quenching, wdg), carburizing, nitriding, cyaniding, boronizing (TD usoro), Laser ike ike, kemịkalụ vepor ntinye (CVD usoro), anụ ahụ vepor ntinye (PVD usoro), plasma chemical vapor deposition (PCVD usoro) plasma spraying, wdg.

Ntụnye uzuoku anụ ahụ (usoro PVD)

Na oghere, a na-eji ụzọ anụ ahụ dị ka evaporation, ion plating na sputtering na-emepụta ion ígwè. Ndị a metal ion na-edebe n'elu nke workpiece na-etolite a metal mkpuchi, ma ọ bụ meghachi omume na chernobyl na-etolite a compound mkpuchi. A na-akpọ usoro ọgwụgwọ a n'ihe gbasara ikuku anụ ahụ, ma ọ bụ PVD maka mkpụmkpụ. Usoro a nwere uru nke ala deposition okpomọkụ, 400 ~ 600 ℃ ọgwụgwọ okpomọkụ, obere deformation na obere mmetụta na matriks Ọdịdị na Njirimara nke akụkụ. Etinyere akwa TiN na valvụ agịga nke W18Cr4V mere site na usoro PVD. Okpokoro TiN nwere isi ike dị oke elu (2500 ~ 3000HV) yana nguzogide dị elu, nke na-eme ka mgbochi corrosion nke valvụ ahụ dịkwuo mma, anaghị emebi emebi na hydrochloric acid, sulfuric acid na nitric acid, ma nwee ike idobe elu na-egbuke egbuke. Mgbe ọgwụgwọ PVD gasịrị, mkpuchi ahụ nwere ezi ziri ezi. Enwere ike ịla ala ma na-egbu maramara, na ịdị nro ya dị elu bụ Ra0.8µm, nke nwere ike iru 0.01µm mgbe emechara ya.