The coating blender role is to stir the certain proportion of dry coating powder and water into uniform and conformable to use coating. The coating performance will directly affect product quality. Except for the coating’s proportion factor, the mixing degree of the coating dry powder and water is the important factor of affecting coating performance. For example, the coating stirred contains air bubble, which will directly result in burnt-on sand in the casting process, because the iron liquid penetrates into the air bubble and wear out the coating layer. Therefore, the coating blender has the important role of lost foam production.
The coating blender performance depends on many factors. The main factors are blade type, rotation speed, relative relation of barrel and blade size and so on. Every performance will directly affect stirring effect. Therefore, our blender is mainly classified based on blade type and rotation effect, which have important impacts on stirring effect. According to blade type, it is mainly classified into: standard paddle blender, scattered disk blender, spiral ribbon type blender and axial direction votex shedding blender and so on. Based on rotation speed, it is divided into: constant rotation speed blender, variable speed blender and unlimited speed regulating blender and so on.
Although the blender types are various, the final purpose is to produce coating confirming to production process requirement. Therefore, the blender choice is very important. Next, we make a specific introduction about all kinds of coating blenders.
The constant speed blender picture is as follows: