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Precautions for equipment installation of piston rod
Piston rod is often used in almost all mechanical equipment, so we must pay attention to its installation. Otherwise, if the installation is incorrect, the equipment may not operate normally. In order to effectively improve the assembly quality of the equipment for better work.
What are the disadvantages of flame surface quenching of Dalian forgings?
What are the disadvantages of flame surface quenching of Dalian forgings?
The method of spraying the high-temperature flame generated by the mixing of combustible gas and oxygen onto the surface of the forging to quickly heat it to the quenching temperature, and then spraying a certain quenching medium on the heating surface for quenching and cooling is called flame surface quenching method.
What are the main inspection methods for forgings?
The main inspection methods of Dalian forgings include chemical composition analysis, mechanical property test, low magnification inspection, metallographic high magnification inspection and nondestructive testing.
What are the advantages of forging heat quenching of Dalian forgings?
Dalian forging heat quenching can improve the properties of forgings.Forging heat quenching can significantly improve the strength and hardness on the premise of maintaining plasticity and toughness.
Four stages of tempering of forgings in Dalian
With the increase of tempering temperature, the quenching structure of Dalian forgings will change a series. According to the structure transformation, tempering is generally divided into four stages: martensite decomposition, residual austenite decomposition, carbide transformation, carbide aggregation and growth and ferrite recrystallization.
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