JB/T 9730-2011
Diesel injection nozzle,plunger and delivery valve of fuel injection pump.Metallographic examination (English Version)
- Standard No.
- JB/T 9730-2011
- Language
- Chinese, Available in English version
- Release Date
- 2011
- Published By
- Professional Standard - Machinery
- Latest
- JB/T 9730-2011
- Replace
- JB/T 9730-1999
- Scope
- This standard specifies the fuel injection nozzle components of the diesel engine injection system, the plunger components for the fuel injection pump or high-pressure fuel supply pump, and the oil delivery valve components for the fuel injection pump or high-pressure fuel supply pump (the effective thickness of the parts is less than or equal to 12 mm) after heat treatment. Inspection of metallographic structure. This standard is applicable to the metallographic inspection of GCr15 steel precision couplings; the metallographic inspection of carburization and heat treatment of alloy structural steel needle valve bodies; the metallographic inspection of W6Mo5Cr4V2 and W18Cr4V steel needle valves.
JB/T 9730-2011 Referenced Document
- GB/T 18254 High carbon chromium bearing steel*， 2016-08-29 Update
- GB/T 3077 Alloy structure steels*， 2015-12-10 Update
- GB/T 5264 Plunger of diesel fuel injection pump—Specifications*， 2022-10-12 Update
- GB/T 5771 Delivery valve of diesel fuel injection pump.Specifications
- GB/T 5772 Injector nozzle of diesel .Specifications
- YB/T 5302 Steel wire for high-speed tool
JB/T 9730-2011 history
- 2011 JB/T 9730-2011 Diesel injection nozzle,plunger and delivery valve of fuel injection pump.Metallographic examination
- 1999 JB/T 9730-1999 Metallographic examination of diesel injector nozzle plunger and delivry valve of diesel fuel injection pump
