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HSM Surfacing Method of Roller Surface of Roller Crusher
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HSM Surfacing Method of Roller Surface of Roller Crusher

Origin:未知    Date:2017-04-05 05:07    Size:Small Medium Big

A roller crusher, a crushed ore mechanical device, also known as a roller crusher. Mainly used for crushing ores, pebbles, river pebbles, quartz stone, glass, marble, weathering sand, granite, basalt and so on. The roller crusher has the advantages of large crushing ratio, small volume, simple structure, low noise, easy maintenance and long service life. The material of the crushed material is uniform, the crushing rate is low, the maintenance is convenient, the overload protection is sensitive, safe and reliable. Applicable to coal, mining, metallurgy, chemical, ceramics, building materials, refractories and other industries, the roller crusher crushing capacity, motor and reducer with a limited distance between the hydraulic coupling to prevent power overload, sensor overload protection, safe and reliable. Two roller spacing spring adjustment, roller bearing concentrated lubrication.

What are the key points for the roll crusher?

1. The choice of electrode: use D-65, D-667 and 506 electrode, before welding, according to the electrode instructions, the electrode drying, placed in the incubator in reserve. The choice of surfacing material is not only good wear resistance, but also have a high toughness and fatigue resistance.
2. Roller surface treatment: with carbon arc gouging on the roller surface for thorough cleaning, remove the roller surface residual hard layer, cracks, dust, rust, so that exposed metallic luster. And then use the wear-resistant repair electrode directly repair welding. Before welding, the electrode for drying, preheating of the weld, after welding slow cooling.
3. Choose AC electric machine: the choice of power for more than 20 kVA AC welding machine. When welding, the current to the electrode and the base material is fully soluble. So as to form the desired wear-resistant tissue.
4. Surfacing sequence and thickness: roll surface preheat, the first to use 506 electrode surfacing 1-3 layer, the roller to find round. And then evenly surfacing several layers of D-667, to achieve the thickness should be. D-667 welding layer after welding, and then surfacing a layer of D-65, surfacing thickness of 3-5mm. D-65 welding layer after welding, and then D-65 surfacing layer

of Ling pattern. Ling-shaped pattern can reduce the material in the extrusion process with the roller surface relative sliding, reduce wear. The thickness of each wear layer should be uniform and uniform so that the squeeze roller will remain circular throughout the course of use.