Engine Valve Bar Material Chamfering Machine
High quality materials, sturdy and durable, fully upgraded, professional quality, Light weight, high strength, low cost, and good performance
Product Details
1. Processing range (the original state of the workpiece):
|
Workpiece status |
Processing conditions |
Remarks |
|
Valve head diameter |
70-----550 |
|
|
Stem diameter |
φ 5～14㎜ |
|
|
Length |
70～550㎜ |
|
|
Material quality |
21-4N+4Cr10Si2Mo |
|
|
Hardness |
30—60HRc |
|
|
Stem run-out |
|
|
|
Valve head surface run-out |
|
|
2. Processing accuracy and cycle time:
|
Position |
Accuracy |
Test methods and tools |
|
Run-out accuracy |
Continuously process and measure 50 pieces within 0.10 mm. |
Special measuring tool |
|
Dimensional accuracy |
Continuously process and measure 50 pieces within ± 0.05 mm. |
Vernier calipers |
|
Surface roughness |
Continuously process and measure 50 pieces within Ra 1.6 μ m. |
Roughness gauge |
|
Cycle time |
Take the processing stem diameter 6.2 as the standard - 7s/pc. |
|
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