The high-pressure sensor sensor YN52S00027P1 e loketse SK200-6 excavator of Shengang

◆ Bakeng sa lisebelisoa tse sebelisoang ka li-valve tsa ultra-high khatello, phekolo ea mocheso le ho thatafala ha holim'a metsi hangata li sebelisoa ho ntlafatsa ho hanyetsa ha tsona le ho hanyetsa khoholeho.

1, vacuum mocheso kalafo

Phekolo ea mocheso oa vacuum e bua ka ts'ebetso ea kalafo ea mocheso eo sesebelisoa se beoang ka har'a vacuum.Phekolo ea mocheso oa vacuum ha e hlahise oxidation, decarburization le kutu tse ling nakong ea ho futhumatsa, empa hape e na le mosebetsi oa ho hloekisa bokaholimo, ho theola le ho senya.Hydrojene, naetrojene le oksijene tse monngoang ke thepa nakong ea ho qhibiliha li ka tlosoa ka har'a vacuum, 'me boleng le ts'ebetso ea thepa li ka ntlafatsoa.Ka mohlala, ka mor'a phekolo ea mocheso oa vacuum ea "ultra-high pressure needle valve" e entsoeng ka W18Cr4V, phello ea boikemisetso ba valve ea nale e eketseha ka katleho, 'me ka nako e ts'oanang, thepa ea mochine le bophelo ba tšebeletso e ntlafatsoa.

2. Kalafo e matlafatsang sefahleho

E le ho ntlafatsa ts'ebetso ea likarolo, ntle le ho fetola thepa, mekhoa e mengata ea phekolo e matlafatsang holim'a metsi e amoheloa.Joalo ka ho tima holim'a metsi (ho futhumatsa lelakabe, ho tima maqhubu a phahameng le a mahareng a ho futhumatsa holim'a metsi, ho tima motlakase o futhumatsang holim'a metsi, ho tima electrolyte ho futhumatsa holim'a metsi, ho tima mocheso oa laser electron beam, joalo-joalo), carburizing, nitriding, cyaniding, boronizing (TD mokhoa), matlafatso ea laser, deposition ea mouoane oa lik'hemik'hale (mokhoa oa CVD), deposition ea mouoane oa 'mele (mokhoa oa PVD), deposition ea mouoane oa lik'hemik'hale tsa plasma (mokhoa oa PCVD) ho fafatsa plasma, joalo-joalo.

Pokello ea 'mele ea mouoane (mokhoa oa PVD)

Ka vacuum, mekhoa ea 'mele e kang mouoane, ion plating le sputtering e sebelisoa ho hlahisa li-ion tsa tšepe.Li-ion tsena tsa tšepe li behiloe holim'a sebaka sa mosebetsi ho etsa sekontiri sa tšepe, kapa se itšoara ka sekontiri ho etsa seaparo sa motsoako.Mokhoa ona oa phekolo o bitsoa physical vapor deposition, kapa PVD ka bokhutšoanyane.Mokhoa ona o na le melemo ea mocheso o tlase oa deposition, mocheso oa kalafo oa 400 ~ 600 ℃, deformation e nyane le tšusumetso e nyane sebopehong sa matrix le thepa ea likarolo.TiN layer e ile ea kenngoa holim'a valve ea nale e entsoeng ka W18Cr4V ka mokhoa oa PVD.TiN layer e na le boima bo phahameng ka ho fetesisa (2500 ~ 3000HV) le khanyetso e phahameng ea ho roala, e ntlafatsang ho hanyetsa ho bola ha valve, ha e chesehe ka dilute hydrochloric acid, sulfuric acid le nitric acid, mme e ka boloka bokaholimo bo khanyang.Ka mor'a phekolo ea PVD, ho roala ho na le ho nepahala hantle.E ka siloa le ho belisoa, 'me bokaholimo ba eona bo thata ke Ra0.8µm, bo ka fihlang ho 0.01µm ka mor'a ho bentša.