Castables, also known as refractory castables, are granular and powdery materials made from refractory materials with a certain amount of binder. The castable has good fluidity and has a wide range of applications. During the application and construction of the castable, the stirred castable must be vibrated and compacted with the help of equipment to increase the compactness and ensure the quality of the cast. In the past, the industry often used vibrating rods for vibrating, which was not only time-consuming and labor-intensive, but also because of the high viscosity and low self-flow of the well-stirred castables, it was prone to non-uniform vibration and honeycomb phenomenon. As a result, the pouring material overflows and the container is scattered on the surrounding ground, resulting in a poor site environment. The castable vibration platform improved this situation very well.
The vibration platform can be divided into two-dimensional vibration platform and three-dimensional vibration platform according to the different motor configuration and compaction direction. 的一种，三维振动平台是不定型浇注料施工过程中的重要设备之一。 The castable vibration platform is a kind of three-dimensional vibration platform. The three-dimensional vibration platform is one of the important equipments in the construction process of the unshaped castable. The pouring material vibration platform mainly uses a combination of rubber springs and 4-8 vibration motors. It has three-dimensional compaction effect of up, down, left and right. It has multiple structural supports during operation, solid structure, good sealing, reliable performance, easy operation, adjustable vibration frequency, low noise, high production efficiency and so on.
The application purpose of the castable vibration platform is to fully shake the castable in the mold, eliminate the bubbles that may appear in the process, and make it solidly distributed in each corner of the mold, so as to ensure the uniform thickness of the cast product. bubble. Therefore, the working principle of the vibrating table is that the horizontal vibration motor under the table generates sufficient and uniform excitation force and transmits it to the table, thereby driving the castable in the mold on the table to generate up and down under the intense vibration. The acceleration of the movement squeezes out the air bubbles between the materials and reduces the air gap between the pouring materials, so as to improve the quality of the preform.
Vibration motors provide the necessary power source for the pouring material vibrating table. The number and frequency of vibration motors need to be customized according to the bearing capacity of the equipment. (金禾机械)综合考虑振实效果和耐用性，建议台面大小在500~800左右的小型振动平台选用转速高的振动电机是因为转速越高、振幅越小，符合振动平台的使物料紧实的作用;而型号较大的、承重量较大的浇注料振捣台适合转速较低的振动电机，这主要是考虑高转速对电机轴承寿命的影响。 When selecting a vibration motor, the vibration platform manufacturer (Jinhe Machinery) comprehensively considers the compaction effect and durability. It is recommended that a small vibration platform with a table size of about 500 ~ 800 choose a high-speed vibration motor because the higher the speed and the smaller the amplitude ， It conforms to the function of compacting the material of the vibration platform; while the larger model and the larger bearing capacity of the castable vibrating table are suitable for the low-speed vibration motor, which mainly considers the impact of high speed on the bearing life of the motor.
In addition to the vibration motor, the damping spring is also one of the important accessories of the castable vibration platform. Since the working process of the vibration platform is achieved by increased excitation force, how to reduce the strong vibration of the noise generated by the severe vibration during work The damage of the force to the platform itself is the focus that vibration platform manufacturers must consider. Jinhe vibration platform is equipped with a damping spring at each of the four corners of the table as a buffer to reduce the noise and extend the service life of the vibration platform. Since the vibration motor can adjust the excitation force within a certain range by adjusting the angle between the upper and lower eccentric blocks, the excitation force of the vibration platform is also adjustable, but it needs to be adjusted by a professional after stopping to ensure safety.
From the structural point of view, the castable vibration platform is mainly composed of a support, a table, a vibration motor, and a damping spring. The vibration motor is the core accessory of the pouring material vibrating table. The number is generally an even number, such as 4, 6, 8, 10, etc. The model of the vibrating motor determines the main technical parameters of the vibrating table. Driven by high-frequency vibration motors to make three-dimensional vibrations such as horizontal, vertical and vertical, so the castable vibration platform is called a three-dimensional vibration platform.
The castable vibrating table is a non-standard product. The size and thickness of the table can be customized according to customer production requirements, mold size, and load requirements. The vibration motor power and excitation force are also selected and installed based on this. The vibration platform vibration damping spring is a device to buffer the excess excitation force and the noise it generates. Therefore, the selection of the vibration damping spring is not static, and the corresponding selection should be made according to the actual production conditions and the vibration platform parameters. . There are three common vibration platform damping springs: steel springs, rubber springs, and air springs. The materials, resilience, and scope of application of the three have their own characteristics. The selection of the three needs to be selected according to the actual load bearing capacity. Too small will not work.
1. Three-dimensional vibration, which can be independently controlled, is suitable for complex cavity castings.
2. Infinitely variable speed. During the modeling process, the best compaction effect can be obtained without harming the model.
3, Jinhe three-dimensional vibration platform (vibration platform) has a simple structure, reliable operation, light weight, small size, easy installation and maintenance.
4. Self-locking function can ensure accurate positioning on the production line.
5, high power, large table; maximum power 2.2KW (4-5), excitation force 120KN, can carry the weight of the sand box 12T, the maximum load can be designed and manufactured to 15T.
6, the height of the table is adjustable, suitable for use on the assembly line.
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