In the field of mold manufacturing, aluminum alloy can gradually replace mold steel is a major trend in the current market. Now let’s analyze the five advantages of aluminum alloy materials in mold manufacturing specifically:
First advantage: using aluminum alloy to make molds can significantly improve mold production efficiency
It is generally known that the thermal conductivity of aluminum alloy is 4-5 times that of steel, which can be heated or cooled more effectively, reduce energy consumption, and greatly shorten the demolding time, thereby significantly improving the production efficiency of the mold.
Second advantage: using aluminum alloy to make molds can greatly reduce production time
The aluminum alloy has excellent machining performance and can be cut at a high speed. The cutting speed is 40% higher than that of die steel such as P20, thus greatly reducing the machining cycle of the die. After machining, the mold surface is smooth and shiny, which makes demolding easier. At the same time, the superior fine machining performance and good welding performance make it easier and faster to make subtle mold designs and repair machining errors or worn molds. If the actual needs of production are fully taken into account, and the production tools suitable for aluminum alloy are specifically used, the machining speed can also be increased. Because of the special heat treatment during production, the residual stress of aluminum is very small, so the machining deformation of aluminum alloy is very small. Aluminum is suitable for cutting and EDM.
Third big advantage using aluminum alloy to improve mold resistance
After the mold steel is used for a period of time, it will produce pits, stains and discoloration. This is because during the production process, certain plastics will produce corrosive substances, such as PVC will generate chloride ions, which easily react with iron to make plastics. The mold surface is damaged, but it will not have any corrosive effect on aluminum alloy products. The mold surface can be kept bright and clean, which prolongs the service life of the mold and improves the grade of the product.
Fourth advantage: using aluminum alloy to improve mold quality and efficiency
The polishing cost of a steel mold accounts for about 30% of the total cost of the mold. This is because polishing is a time-consuming and costly process. The effect depends on the polishing technology, the compactness and uniformity of the material, and the strength of the aluminum alloy. High and stable, dense tissue is better than no defects, polishing is easier, and the mirror effect can be achieved quickly.
Fifth advantage: using aluminum alloy to make molds can reduce costs and increase benefits
The price / efficiency / quality ratio is the best. From the perspective of current mold steel prices, the price of imported materials is 25-60 yuan / kg, while the price of mold aluminum alloy materials is generally 50-85 yuan / kg, considering the unit volume The weight is only 1/3 of the mold steel, compared with the mold steel and aluminum alloy materials of the same volume. The material cost of the former is greater than that of the latter. In addition, the recycling price of the latter’s residual materials is generally not less than 12 yuan, while the former is basically used for scrap steel treatment, which varies greatly. The most important thing is that the aluminum alloy market is relatively more stable than the mold steel market, which is more conducive to the implementation of cost budget control. Aluminum molds are about 50% lighter than steel molds. Therefore, aluminum molds are superior to steel molds in manufacturing, assembly, and installation and adjustment of injection molding workshops. The use of light molds eliminates the need for expensive lifting equipment (such as cranes and crane trucks), thereby reducing manufacturing costs.
At the same time, because the aluminum alloy material is light in weight and has good machining performance, it can greatly reduce the wear of the machine and the wear of the tool, reduce the maintenance time and prolong the service life of the machine. The use of aluminum alloy molds can reduce energy consumption and labor intensity of workers, which is conducive to improving the operating environment.
Based on the above advantages, the use of aluminum molds is of great significance to improve corporate efficiency and implement national energy-saving and environmental protection industry policies. At the same time, aluminum alloys are used from abroad to produce automotive industry molds, blow molds, foam molding molds, low-pressure injection molds, and inspection tools. Judging from the practice of tools and fixtures, it also indicates that the development prospect of such molds is broad.
Compared with steel molds, aluminum alloy-based molds have the advantages of light weight, high thermal conductivity, good welding performance and good machinability, and short production cycles. Therefore, high-speed cutting of aluminum alloys to produce molds has been used worldwide. Has been widely used. However, due to the different manufacturing technology requirements of aluminum molds and steel molds, they are not widely used in China. However, it is believed that with the increasingly fierce market competition, the acceleration of product cycles, and the demand for quality, the Higher and higher, there will be more room for development of molds made of aluminum alloy.