Construction machinery industry as one of the important pillars of the modern industrial field, the demand for high-quality, high-performance parts is growing. Under this background, magnesium forgings of construction machinery, as a kind of lightweight and high-strength material, have gradually attracted wide attention.
First of all, let’s take a look at the manufacturing process of magnesium forgings for construction machinery. Manufacturing process is one of the key factors to ensure the quality and performance of parts.
- Raw material preparation: The manufacturing process of magnesium forgings of construction machinery begins with the preparation of raw materials. Select high purity magnesium alloy materials, and according to the need for reasonable dosing and mixing. In order to improve the mechanical properties of the material, an appropriate amount of alloying elements can be added, such as aluminum, zinc, manganese, etc.
- Preheating treatment: Before entering forging, raw materials need to be preheated. By preheating, the plasticity and malleability of the material can be improved for subsequent forging operations.
- Magnesium forging: Magnesium forging is an important step in the manufacture of magnesium forgings for construction machinery. Magnesium forging can be divided into hot forging and cold forging two ways. Hot forging is suitable for parts with complex shapes. By heating to a suitable temperature for forging, magnesium alloy can produce a predetermined shape in the mold while maintaining a certain forging force. Cold forging is suitable for simple shaped parts, forming the desired shape directly by pressure or impact.
- Heat treatment: Parts formed by magnesium forging need to be heat treated to improve their internal organization and properties. Common heat treatment methods include solution treatment and aging treatment. Solution treatment can eliminate segregation and grain boundary structure in the material and improve the strength and hardness of the material. Aging treatment can further stabilize the properties of the material and improve the tensile strength and heat resistance.
- Machining: The heat-treated magnesium forgings of construction machinery need some machining to meet the requirements of part size and surface accuracy. Common machining methods include milling, drilling, turning and so on.
Magnesium forgings of construction machinery have a wide range of application fields, mainly reflected in the following aspects:
First of all, magnesium forgings of construction machinery can be used to manufacture important bearing structures. Due to its high specific strength and stiffness, magnesium alloy can be used as an important bearing structure in construction machinery such as engine base and suspension system parts to ensure the stable operation of machinery.
Secondly, construction machinery magnesium forgings can achieve lightweight design. Compared with traditional materials, magnesium alloy has a lower density, which can reduce the weight of the whole machine under the premise of maintaining sufficient strength, improve the operation efficiency of the machine and the effect of energy saving and emission reduction.
In addition, construction machinery magnesium forgings also have good high-temperature durability. Some magnesium alloy materials have excellent stability and oxidation resistance under high temperature environment, and are suitable for manufacturing some parts working under high temperature working conditions, such as exhaust pipes, turbine blades, etc.
Finally, construction machinery magnesium forgings have excellent corrosion resistance. The corrosion resistance of magnesium alloy is very good, and it can be used in harsh working environment for a long time, such as Marine environment, chemical factory and so on.
In general, the manufacturing process and application of magnesium forgings in construction machinery is a complex and diverse field. By selecting the appropriate manufacturing process and high-quality magnesium alloy materials, we can meet the requirements of the construction machinery industry for strength, lightweight, durability and corrosion resistance, and provide reliable support for the development of construction machinery.
