20Cr alloy isina musono simbi pombindiyo imwe yealloy structural simbi mapaipi ane yakakura kubuda munyika yangu uye ine huwandu hwakawanda hwekushandisa.Chinese GB yakajairika simbi nhamba 20Cr;Japanese JIS yakajairika simbi nhamba SCr22;German DIN yakajairika simbi nhamba 20Cr4;British BS yakajairika simbi nhamba 590M17;French NF yakajairika simbi nhamba 18C3;American AISI/SASTM yakajairika simbi nhamba 5120;International Standards Organisation ISO yakajairika simbi No. 20Cr4.
Hunhu
20Cr chiwanikwa simbi pombiine kuomarara kwakanaka, kusimba kuri pakati nepakati uye kuomarara.Kuoma kwemafuta ekudzima kusvika kuhafu yemartensitic kuoma ndeye Φ20-Φ23mm.Mushure mekuputira uye kudzima kurapa kwekusimbisa pamusoro, yakanaka tsono-yakaita senge martensite ichawanikwa pamusoro peiyo mold nekuoma kwe58-62HRC;a low-carbon martensite structure ichawanikwa pakati nekuoma kwe35-40HRC.Iyo matrix ine simba rakawanda uye kuoma, uye inogona Kusangana nekuita zvinodiwa zvekuomarara kwepamusoro, kusimba kwepamusoro, kuomarara kwepamusoro uye kwakakodzera kusakara kwecorrosion yeanotonhora basa mold.Normalizing inogona kusimudzira spheroidization yechimiro, kunatsa iyo hombe proeutectoid ferrite, uye kunatsiridza kucheka mashandiro eiyo isina chinhu.
Usage
20Cr isina musono simbi mapaipianonyanya kushandiswa kugadzira carburized parts (mafuta ekudzima) ane akakwira musimboti simba zvinodiwa, kupfeka kwepamusoro, kuyambuka-zvikamu pazasi 30mm, kana maumbirwo akaomarara uye mitoro yakaderera, senge: muchina chishandiso giya giya giya, giya shaft, Cams, honye, piston piston. , claw clutches, nezvimwewo;kune zvikamu zvine diki kupisa kurapwa deformation uye yakakwirira kupfeka kuramba, yakakwirira-frequency pamusoro quenching inofanira kuitwa pashure carburization, akadai magiya, shafts.20Cr isina musono pombiinogona zvakare kushandiswa munzvimbo yakadzimwa uye yakapfava kugadzira zvikamu zvinoshanda nekumhanya kwakanyanya uye zvinoshingirira zvine mwero kukanganisa mitoro.Inogona zvakare kushandiswa seyakaderera kabhoni martensitic inodzima simbi kuti iwedzere kuwedzera goho simba uye kusimba kwekusimba kwesimbi.
Nguva yekutumira: Zvita-19-2023