Quality requirements for gray cast iron of brake drum
Release time:
Jan 22,2024
Brake drum is an important part of automobile braking system, which is very important for driving safety. The quality of the brake drum has a direct impact on driving safety and braking performance.
Brake drum is an important part of automobile braking system, which is very important for driving safety. The quality of the brake drum has a direct impact on driving safety and braking performance. The following are some requirements for the quality of gray cast iron for brake drums:
1. Strength requirements: The brake drum needs to have sufficient strength to withstand high temperature and high speed braking force. The strength requirements of gray cast iron generally require tensile strength not less than 200MPa, yield strength not less than 140MPa, and elongation not less than 1%.
2. Acoustic performance: The brake drum will produce friction noise during braking, so gray cast iron is required to have better shock absorption and noise reduction performance to reduce noise interference to vehicles and drivers.
3. Thermal conductivity: The brake drum will be affected by high temperature heat during braking. Therefore, gray cast iron is required to have better thermal conductivity, which can dissipate the heat in the braking process in time to avoid overheating of the braking system.
4. Abrasion resistance: The brake drum will be greatly worn during the braking process, so gray cast iron is required to have good wear resistance, and it is not prone to cracks, wear and deformation to ensure long-term service life.
5. No defects: the brake drum has no defects on the quality requirements of gray cast iron, and there can be no defects such as pores, inclusions, shrinkage cavities, etc. to ensure the overall performance and reliability of the brake drum.
6. Dimensional accuracy: The brake drum has high requirements for the dimensional accuracy of gray cast iron, and needs to meet the design requirements of the automobile brake system to ensure the cooperation and normal operation with other brake components.
All in all, the brake drum has high requirements for the quality of gray cast iron. It needs to have sufficient strength, good acoustic performance, good thermal conductivity, good wear resistance, and no defects to ensure the safety of the brake drum. Reliability and long service life.
Key words:
Learn More About Industry Dynamics
Contact Info
Focus on providing quality services for our customers
Add: Gucheng Town Industrial Development Zone, Longyao County, Xingtai City, Hebei Province
More Info
Official Website