Recently, precision mold maker Sanjing Technology Research has purchased one large and medium-sized mold processing machine in a remote city factory, including a total of 35 die-casting machines, including existing equipment. Increasing production orders by casting magnesium alloys Components. In late August, we plan to add another medium-sized machine to increase production capacity by 20% over the previous year.
"The current trend in the world for resin parts to be magnesiumized is expanding. In the future, demand will also expand in many areas of the domestic market," said Mr. Hoshima, president of Sanjing Research Corporation.
Die casting machine is a machine that puts melted metal into a mold and produces metal products in large quantities. Magnesium is widely used because it has less deformation when removed from a mold than aluminum. Because the accuracy after completion is high, it is possible to save the part of reducing the deformation in the numerical control machine tool, which has the advantage of simplifying the manufacturing process. In particular, magnesium weighs two-thirds of aluminum, and is the lightest among practical metals and has sufficient strength. From the perspective of reuse, it is able to meet the needs of the era of pursuit of lightweighting, and has attracted attention as a material with the smallest environmental load.
60% of the fuel used by the car is consumed by the weight of the car. For every 10% reduction in the weight of the car, the fuel efficiency can be improved by more than 5%. For every 100 kg of the weight of the car, the fuel consumption can be reduced by about 0.7 L per 100 kilometers and every 1 L of fuel saved It can reduce CO2 emissions by 2.5 g, and reduce annual emissions by more than 30%. Therefore, reducing the weight of cars has a great impact on the environment and energy, and the weight reduction of cars has become an inevitable trend.
Magnesium alloys are the lightest metallic structural materials used in the aircraft, spacecraft and rocket missile manufacturing industries, and are mainly used to make low-load-bearing parts. Although the specific gravity of the magnesium alloy is heavier than that of plastic, the strength and elastic modulus per unit weight are higher than that of plastic. Therefore, with the same strength parts, magnesium alloy parts can be made thinner and lighter than plastic. In addition, because the specific strength of magnesium alloys is also higher than that of aluminum alloys and iron, the weight of aluminum or iron components can be reduced without reducing the strength of the components. Magnesium alloy has the highest specific strength, the specific rigidity is close to that of aluminum alloy and steel, and much higher than that of engineering plastics.