High temperature performance testing and improvement of aluminum forgings in construction machinery is to evaluate and improve the performance and reliability of the material in high temperature environments. Here’s a look at the tests and improvements in this area:
- High temperature performance test:
- Heat resistance test: By exposing aluminum forgings to a high temperature environment, the temperature changes and material properties changes are observed. High temperature experimental equipment such as high temperature furnace or heat treatment furnace can be used for testing.
- Oxidation resistance test: used to evaluate the oxidation resistance and surface stability of aluminum forgings under high temperature oxidation environment. Common oxidation test methods can be used, such as accelerated oxidation test, thermal cycle oxidation test, etc.
Thermal expansion coefficient test: Measure the linear expansion coefficient of aluminum forgings at high temperatures to evaluate the thermal expansion characteristics of materials under temperature changes.
- Improvement method:
- Material selection: When developing new construction machinery aluminum forgings, select the appropriate aluminum alloy material, considering its high temperature strength, oxidation resistance, thermal expansion coefficient and other characteristics.
- Heat treatment and heat treatment process optimization: through appropriate heat treatment methods, such as solution treatment, aging treatment, adjust the grain structure and phase composition of aluminum forgings, optimize the high temperature strength and stability of the material.
- Surface coating and protection: By coating the surface of aluminum forgings with a protective layer or coating resistant to high temperature, improve the oxidation resistance and heat stability of the material.
- Structural optimization: By changing the structural design of aluminum forgings, such as increasing the thickness of the material, increasing the heat dissipation surface area, etc., to improve its heat dissipation performance and resistance to high temperature stress.
Testing and improving the high temperature resistance of aluminum forgings of construction machinery is to ensure good working performance and reliability in the actual working environment. This can extend the service life of aluminum forgings, reduce component failures and failures caused by high temperatures, and improve the safety and stability of construction machinery.
