The high-pressure forming of magnesium alloys can be divided into cold chamber die casting and hot chamber die casting. The characteristics of cold chamber die casting are:The material barrel is distributed horizontally, and the material liquid is supplied by the automatic quantitative melting furnace. Under the action of the injection punch, the magnesium liquid is rapidly pressed into the mold cavity to form.
The function of the magnesium alloy melting and insulation automatic pouring furnace is to melt the magnesium alloy liquid and keep it warm, and to regularly inject magnesium liquid into the material pipe of the die-casting machine with the cooperation of the pouring pump. The magnesium alloy melting and insulation automatic pouring furnace is composed of steel structure furnace body/cover, refractory insulation material, bimetallic composite steel plate crucible, quantitative pump, transmission pipe, resistance heating element，composition of components such as thermocouples and protective gas pipelines.
At present, countries around the world are very optimistic about the application prospects of magnesium alloy die castings, especially in the automotive, aviation, telecommunications, transportation, and machinery industries. Replacing aluminum alloy or steel components with magnesium alloy castings can effectively reduce mechanical weight, significantly save energy consumption, and reduce environmental pollution. If a car is reduced by 100kg, the fuel consumption per kilometer can be reduced by 0.4L. Therefore, developed countries such as the United States, Japan, and Europe are now expanding the application of magnesium alloy castings in cars, such as steering wheels, instrument panels, seat frames, crankcases, gearbox housings, wheel hubs, etc. The application of magnesium alloy die-casting parts in industries such as home appliances, light industry, and daily hardware is also expanding, such as laptop cases, recording and playback cases, mobile phones, power tool cases, camera cases, indoor decorations, lawn mower cases, etc. These parts are made of magnesium alloy die-casting parts, which not only greatly reduce weight, have precise and stable dimensions, but also have a smooth surface and a series of outstanding advantages.
This preheating machine is used for preheating magnesium ingots and automatically conveying preheated magnesium ingots to the furnace. The preheating machine adopts a worm gear reducer to drive the screw rod to lift upwards. After detecting the position, the magnesium ingot is sent to the preheating area for preheating by the ingot pushing cylinder. The preheated magnesium ingot is sent to the ingot feeding mechanism by the pushing cylinder, and is smoothly fed into the crucible. This preheating has high preheating efficiency, long service life of heating elements, small footprint, and can accommodate at least 120 magnesium ingots at once according to the model size.
The structural diagram is as follows:
