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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.
Problems needing attention in forging process
Forging is a very important step in steel manufacturing. A good steel worker must have a good forging skill. The forging process needs to be exposed to some high-temperature processes, so we should pay attention to some problems in forging and should not ignore these small details.
What if the piston rod breaks during machining
How to deal with the fracture of piston rod during machining?
1. Adjust the moving speed between the product and the induction switch to avoid the occurrence of heat treatment soft belt.
Rare causes and treatment of overheating of piston rod
Rare reasons for overheating of piston rod:
1. The appearance of the piston rod is too detailed.
2. Sundries are mixed in the gas and oil in the filling and evaluation.
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