How is aluminum casting made?
The cost of cast aluminum parts is low, the process is good, the remelting regeneration saves resources and energy, and the application and development are enduring. Aluminium castings are preferred to use sand casting, the main reason is that sand casting has lower cost, simple production process and shorter production cycle than other casting methods. The cast aluminum parts are prepared by using pure aluminum or aluminum alloy ingots according to the standard composition ratio, and after being manually heated to be turned into an aluminum alloy liquid or molten state, the aluminum liquid or the molten aluminum alloy is poured through a professional mold or a corresponding process. A process for cooling a cavity into a desired shape. Commonly used cast aluminum methods are: sand casting, Die casting, low pressure casting, precision casting, permanent mold, lost foam casting, and the like.
Aluminum castings are available in a wide range of weights and casting sizes. The lightest weight is only a few grams, the heaviest is 400 tons, the thinnest wall thickness is only 1 mm, the thickest can be more than 1 meter, and the length can range from a few millimeters to ten. A few meters to meet the requirements of different industrial sectors. Generally, for the appearance quality of aluminum castings, the comparative sample can be used to judge the surface roughness of the aluminum casting; the fine cracks on the surface can be inspected by the coloring method and the magnetic powder method. The internal quality of aluminum castings can be checked and judged by means of audio, ultrasound, eddy current, X-ray and gamma rays.
Aluminum castings have excellent mechanical and physical properties. They can have a variety of strength, hardness, and toughness properties. They can also have one or more special properties, such as wear resistance, high temperature resistance, low temperature, and corrosion resistance. Wait.
The quality of aluminum castings has a major impact on the performance of mechanical products. For example, the wear resistance and dimensional stability of machine tool aluminum castings directly affect the accuracy of the machine tool to maintain the life; the impeller, shell and hydraulic chamber internal cavity dimensions, profile accuracy and surface roughness of various types of pumps directly affect The working efficiency of the pump and hydraulic system, the development of energy consumption and cavitation, etc.; the strength and chilling heat resistance of aluminum castings such as cylinder block, cylinder head, cylinder liner, piston ring and exhaust pipe of the internal combustion engine directly affect the work of the engine. life.
Deshengrui Machinery is a professional CNC manufacturing and Sheet metal fabrication company, including CNC machining services, CNC turning service, CNC milling services, CNC drilling services, laser cutting services, stamping services, Die casting service, iron casting service and Steel Forging service.