Bolt Torque ની ગણતરી કેવી રીતે કરવી
Bolt Torque શું છે?
Bolt torque relates to clamp force, preventing loosening and joint slippage. Proper torque specification is critical for safety.
સૂત્ર
Calculate: T = K × d × F where K is coefficient (0.15-0.2), d is diameter, F is clamp force
- T
- K × d × F where K is coefficient (0 — K × d × F where K is coefficient (0
- K
- K value — Variable used in the calculation
- F
- T / (K × d) — T / (K × d)
પગલું દ્વારા પગલું માર્ગદર્શિકા
- 1Calculate: T = K × d × F where K is coefficient (0.15-0.2), d is diameter, F is clamp force
- 2Or inverse: F = T / (K × d)
- 3Standard torque specifications follow ASME or ISO standards
Worked Examples
ઇનપુટ
M20 bolt (d=20mm), desired clamp F=100 kN, K=0.17
પરિણામ
Torque ≈ 340 N·m required
Use calibrated wrench
Common Mistakes to Avoid
- ✕Using dry bolt torque for lubricated conditions
- ✕Over-torquing and yielding bolts
Frequently Asked Questions
Why does torque vary by material?
Higher strength steel allows greater clamp force without yielding; coefficient K also varies with surface.
What happens with inadequate torque?
Joint relaxation and slippage; vibration causes eventual failure.
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