Aluminum Alloy Differential Pressure Casting Machine Details
There are significant differences in performance between metal molds and sand molds. For example, sand molds have air permeability, while metal molds do not; sand molds have poor thermal conductivity, metal molds have good thermal conductivity, sand molds have concessions, and metal molds do not. These characteristics of the mold determine that it has its own rules in the process of forming the casting. The influence of the change of the gas condition in the cavity on the molding of the casting: when the metal is filling, the gas in the cavity. The introduction of some reasons for the defects of gravity casting.
Primary technical indicators:
1. The pressure holding and boosting of the equipment can be continuously adjusted within 0-0.2MPa; 2. The pressure fluctuation of the holding pressure can be increased to -0.001MPa; 3. The high vacuum degree of the equipment is -80KPa
Primary function:
The melting\/holding furnace is heated by resistance wire, the heating power is 90KW, the long-term working temperature is as high as 900 degrees Celsius, the crucible capacity is 450Kg aluminum alloy\/300kg magnesium alloy, and the melting time of the full furnace is less than 5 hours. It has the advantages of easy operation, good control mode, safety, Cost-effective advantages.
Aluminum alloy casting is a common alloy casting in my country. The casting has high dimensional accuracy, high hardness, and relatively light weight; Listed out, I hope that the majority of netizens can analyze the reasons for the cracking.
The casting is mainly made of aluminum, mixed with other metals in proportion, heated to 730 degrees Celsius and melted into molten aluminum. The molten aluminum is stored in a crucible: the material of the riser is mainly silicon nitride Q, and the riser is put on the machine During production, the inside and outside of the tube is coated with water-diluted riser paint to prevent the inner wall from sticking to aluminum; after the paint is painted, put it into a heating furnace to heat, set the temperature at 200 degrees Celsius, and heat it for about 34 hours to dry the riser. Liquid pipe and riser pipe heating;
