The main function of the nozzle is to completely atomize the fuel and distribute it evenly throughout the fuel chamber and mixing it fully with the compressed air in the cylinder for good combustion. As an expert in grinding system, MORE shares the following case of Vitrified bond internal grinding wheel for Oil pump nozzle.
The Case of Vit internal grinding wheel for Oil pump nozzle
1. Needle body grinding
| Workpiece |
Nozzle body |
| Material |
18CrNi8(Low carbon alloy steel) |
| Hardness |
HRC56-60 |
| Grinding allowance |
Hole:0.02mm |
| roughness |
Hole: Ra≤0.1㎛ |
| Accuracy |
Hole: roundness ≤0.3㎛, straightness ≤0.5 ㎛, parallelism ≤0.5 ㎛ |
2. Grinding Parameter
| Vitrified bond internal grinding wheel for Oil pump nozzle |
| Specification |
4Dx6TxM2/4.1Dx10.5TxM2/3.8Dx6TxM2 |
| Bond |
Vitrified |
| Grit |
400/500 |
3. Grinding Effect
| Item |
Parameter |
| Speed-grinding wheel |
90000RPM |
| Dressing interval |
16 piece |
| Dressing allowance |
0.001mm(unilateral) |
Taper ≤±0.5㎛
|
0.3㎛ |
Roundness ≤0.4㎛
|
0.2㎛ |
Straightness ≤0.5,Roughness Ra ≤0.1
|
0.07-0.08 |
| Life |
2500 piece |
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