Precautions for forging excavator chain piece
May 04, 2023| Forging excavator chain is one of the key parts of excavator, whose quality directly affects the service life and safety performance of excavator. The following is the precautions for forging excavator chain piece:
First, material selection
The material of forging excavator chain plate is required to have high strength, high toughness and durability. Generally, 45MnB, 40Mn2, 30CrMnSi and other high strength steels are used for forging. In the selection of materials, we should take into account the use of different environments, such as seaside, alpine, tropical and other different areas, different requirements for materials.
Two, forging process
The forging process of excavator chain has direct influence on the strength and toughness of chain. Generally, hot forging, warm forging or cold forging is used for forging. At the same time, the forging temperature and forging speed should be controlled to ensure that there are not too many defects and cracks in the chain.
Three, precision requirements
The forging excavator chain is one of the key parts of the excavator, its precision requirements are very high, especially the sprocket and the shaft hole of the chain joint and other parts of the diameter of the precision requirements are high. It is necessary to use high-precision processing equipment and instruments for precision machining and testing, to ensure that its quality meets the requirements.
Iv. Heat Treatment
After forging, the chain of the forging excavator needs to be heat treated to improve the strength and toughness of the chain, which is generally treated by normalizing, quenching and tempering. In the process of heat treatment, special attention should be paid to the control of temperature and time, and the quality of the chain after heat treatment should be tested.
Five, steel requirements
The rigidity of the forging excavator chain is one of its important mechanical performance indexes, which needs to ensure that it has good toughness and strength. When conducting steel test, attention should be paid to controlling test conditions and instruments to ensure the accuracy and reliability of test results.
Six, surface treatment
The surface of the forging excavator chain plate needs anti-corrosion treatment to prolong the service life. Generally, galvanized, spray painting and other methods for processing, the need to select and control the processing process and materials.
Seven, quality testing
In the production process of forging excavator chain pieces, quality testing needs to be carried out several times to ensure that it meets the relevant standards and requirements, including material analysis, mechanical property testing, steel testing, surface quality testing, etc. At the same time, in the process of use, it is necessary to carry out regular detection and maintenance of the chain, timely replacement and repair, to ensure the safe operation of the excavator.
In short, forging excavator chain is one of the key components of excavator, quality directly affects the service life and safety performance of the whole machine. In the process of production and use, special attention should be paid to material selection, forging process, precision requirements, heat treatment, rigidity requirements, surface treatment and quality detection, to ensure that the quality of the chain meets the requirements, and strengthen maintenance and maintenance, to extend the service life.