Standard No.:	JB/T 5175-2020
English Name:	Diesel fuel injection pump and fuel injector assemblyAssembly metallographic examination
Chinese Name:	柴油机喷油泵、喷油器总成 主要零件金相检验
Professional Classification:	JB    Professional Standard - Machinery
Issued by:	MIIT
Issued on:	2020-4-16
Implemented on:	2021-1-1
Status:	valid
Superseding:	JB/T 5175-2006 Metallographic examination of diesel fuel injection pump and assemblies of nozzle and holder
Language:	English
File Format:	PDF
Word Count:	9500 words
Price(USD):	285.00
Delivery:	via email in 1~3 business day

本标准规定了中、小功率柴油机喷油泵、喷油器总成主要零件凸轮轴渗碳淬火回火金相检验、喷油器体器渗碳淬火回火金相检验和喷油器体高频（或火焰）淬火回火金相检验。
本标准适用于20、20Cr等钢制成的凸轮轴渗碳淬火回火金相检验；适用于20、20Cr、20CrMo、16MnCr5等钢制成的喷油器体渗碳淬火回火金相检验；适用于40Cr、42CrMo、45、55、60等钢制成的喷油器体高频（或火焰）淬火回火金相检验。