Comparison between vacuum preloading equipment and traditional presses?

Comparison between vacuum preloading equipment and traditional presses?

Vacuum preloading equipment and traditional presses are two different industrial equipment mainly used for pressing various materials. Below is a comparison and comparison between these two devices.

From the perspective of working principle, vacuum preloading equipment utilizes vacuum technology to form negative pressure on the surface of the material, thereby reducing the internal voids and gas content of the material and achieving the effect of preloading. Traditional presses, on the other hand, apply pressure to materials through the action of mechanical force to form the desired shape and density.

Secondly, in terms of effectiveness, vacuum preloading equipment can better control the density and shape of materials. Due to the elimination of gas in the vacuum environment, the shrinkage rate of the material will decrease, resulting in a more compact and uniform product. However, traditional presses may not achieve the same density and shape as vacuum preloading equipment due to the inability to expel gas and the high shrinkage rate of the material.

Again, from the perspective of applicability, vacuum preloading equipment is suitable for various materials that are prone to gasification and moisture absorption, such as rubber, plastic, ceramics, etc. In a vacuum environment, the gas and water on the surface of the material can be removed, resulting in better compression results. Traditional presses are suitable for materials that are not easy to gasify and absorb moisture, such as metal, glass, etc.

In addition, from the perspective of operation and maintenance, vacuum preloading equipment is relatively complex. Maintenance and upkeep of the vacuum system are required, as well as precise control of vacuum degree and pressure. Traditional presses, on the other hand, are relatively simple, requiring only pressure control and mechanical operation of the equipment.

From a cost perspective, the price of vacuum preloading equipment is relatively high, mainly due to the need to equip complex vacuum systems. However, traditional press machines are relatively inexpensive and suitable for some fields that do not require high product quality.