Strengthen aluminum forgings, optimizing steel and secondary heat treatment of steel, the overall structural strength is improved by 15% compared with the original product in all aspects (mainly shear resistance, tensile, swing fatigue test, pull-off force test, long-term high-intensity test in extreme environments such as saline-alkali mud)
The bushing mainly consists of an inner tube, an outer tube and a middle rubber part, which can be divided into oil-bearing bushing and full rubber bushing; the inner tube of the bushing is made of 6061 material, the ultimate tensile strength of 6061 is above 205MPa, the compressive yield strength is 55.2 MPa, the elastic modulus is 68.9 GPa, and the bending ultimate strength is 228 MPa; at the same time, a small amount of zinc is added to improve the strength of the aluminum alloy, and the colloid content of the outer ring is increased by 5% to improve the strength and life of the rubber.
The outer tube is zinc-nickel alloy.
