Diesel Injector Fuel Injector 0445120397 compatible with Bosch injector FAW J6 CA6DM2 /XICHAI

After EDM machining of pressure chamber, the diameter of pressure chamber is expanded from 0.8 to 1mm, and the depth of pressure chamber is increased by 0.02~ 0.11mm. The table lists the flow pair ratio of this batch of nozzle couple before and after EDM. The average flow rate increases by 16.9%, and the flow dispersion decreases from 21% to 8%. In the engine test, the fuel consumption and smoke of the nozzle after EDM machining are reduced.

Instead of rough and semi - finishing, we use a spark - driven wire cutting machine. During processing, the outer circle and end face of the workpiece are positioned, and the productivity is 15min/ piece. The machining precision of the hole can reach: the size error is 0.01mm; Roundness 0.002mm; Prime line parallelism 0.0025mm; Surface roughness Ra0.4. Equivalent to precision grinding. In this way, it is easy to meet the requirements of the follow-up processing process.

Electric spark slow wire cutting machine to replace rough grinding, semi-finishing or grinding processing, from the point of production efficiency, only suitable for small batch of precision hole machining.

5 Other applications of EDM machine tools

Edm machines have other applications in the oil pump nozzle industry. For example, the EDM needle valve body seat machine developed by Shandong Heze Oil pump Nozzle factory can be applied to S, JP series needle valve body seat processing; AMCHEM in the UK and POSALUX in Switzerland have introduced EDM hole machining machines for the processing of needle body holes, both of which can control the flow rate of the holes. POSALUX is famous for the production of hole drilling machines. With the development of technology and the improvement of nozzle requirements, the company has also launched the EDM hole drilling machine, which shows the advantages and market of EDM machine tools.