Method of quality identification of ring forgings

Release time:

2023-12-12

Ring forgings are widely used in the production equipment manufacturing industry such as forging, automobile industry, railway freight, construction engineering and other production equipment manufacturing industries. Its product quality is the initial guarantee for the production and processing of manufacturers. If the quality of stainless steel castings is not good, it will cause great harm to the quality of production and processing products and even affect the personal safety of employees.

Ring forgings are widely used in the production equipment manufacturing industry such as forging, automobile industry, railway freight, construction engineering and other production equipment manufacturing industries. Its product quality is the initial guarantee for the production and processing of manufacturers. If the quality of stainless steel castings is not good, it will cause great harm to the quality of production and processing products and even affect the personal safety of employees. Ring forging manufacturers to choose reliable quality stainless steel castings as the main raw materials, in order to ensure the smooth development of production and processing. The following small series will briefly introduce the quality appraisal method of ring forgings. There are two kinds of external observation and development test method for the inspection of the quality of stainless steel castings. External observation is to observe and accurately measure the design appearance of these products, such as the appearance of stainless steel castings, graphic specifications and models, surface conditions, etc., to see if they meet the requirements and have external defects.

Chemical heat treatment of ring forgings. Induction hardening and soft high-frequency hardening of stainless steel castings differ in the composition of the internal and external structures. In addition, since the temperature of the stainless steel casting is lower than the change point, the continuous increase of deformation after the entire quenching and tempering treatment can be avoided, and stainless steel castings with demanding deformation requirements can be used.

Ultrasonic conditioning. The application of ultrasonic mechanical design for ring forgings can make the quenching and tempering treatment chemicals cause vibration, eliminate the steam film on the surface of the quenching and tempering treatment stainless steel castings, continuously improve the cooling speed, obviously improve the level of the whole process of quenching and tempering treatment, make the cooling more uniform, avoid soft spots and soft bands on the surface of the stainless steel castings, and obviously reduce the welding stress and deformation.

Rapid development heats up. Annular forgings refer to the tempering treatment method of increasing the temperature to make the surface of stainless steel castings rapidly exceed the tempering treatment temperature, and then carrying out tempering treatment. For example, the transmission gear of the transmission system rotates in the carburizing furnace to heat up the tooth part or high-frequency heating. Due to the rapid heating speed, the ferrite crystal on the surface does not grow up, and the calorific value on the surface after tempering treatment cannot be transmitted to the inside, so, thus the surface, the deformation is obviously reduced effectively.

The above is the ring forging quality appraisal method introduced by the editor, and I hope it can be helpful to you.

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