The Cold Pressing Process Advantages Of Helical Blade

The screw conveyor is widely used in power plant, cement, mining, chemical and other industries for transporting the materials. Sometimes, the screw conveyor will be used in automated warehouse with stacker reclaimer, pipe conveyor, stone crusher and other equipment. The processing difficulty of helical blade is large, which greatly influences the performance and costs. There are three common manufacture methods of helical blade. The first one is to use special rolling brake, which is suitable for volume-production but has high requirements on equipment. The second one is cold-forming with low efficiency and bad quality of blade. The third one is hot rolling method with complex process and high labor intensity.
As a professional conveying equipment manufacture, our company has obtained a new process(cold pressing method) after many years' exploring. This method is efficient and simple, which could produce the blades with high quality.
The Principle of Pressing
The sheet metals produce the tensile plastic deformation in axial and size contraction in radial under control of the mould, which could guarantee the precision and forming of the blades.
Mold Design
The key of cold pressing method is the mold design. The mold structure should meet the requirements of accuracy and guarantee that the unfolded material could smoothly slip into the mould cavity. Besides, the tensile plastic deformation in axial and size contraction in radial could be completed without any errors.
There are many advantages as follows. The efficiency and workplaces precision are greatly increased. The working environment is improved and the labour intensity is reduced. The helical blade has better quality. The energy consumption is reduced, which saves costs.
In following blogs, the technology of pipe conveyor will be referred to.

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