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        Common faults and treatment of four column hydraulic press
        Hits: 253  Time: 2020-09-14 16:26:06
         
        During the operation of the four column hydraulic press, the bolt may fall and fall into the hydraulic cylinder, causing serious damage to the plunger wall. When there are problems, the traditional method can not be used for on-site maintenance. It must be disassembled and sent to the manufacturer for repair welding or waste replacement. Due to the lack of spare parts, the time to return the parts to the factory for replication or repair is out of control. Long term downtime will cause serious financial losses to enterprises, and at the same time, it needs to pay high processing or maintenance costs.
        In order to find a convenient, fast, simple and effective maintenance method to solve the four column hydraulic press equipment problems, it is necessary to reduce the company''s downtime and maintenance costs to meet your company''s continuous production needs. At present, the polymer composite method can be used for on-site maintenance. Polymer composites for in-situ repair have adhesion, pressure resistance, balanced physical and chemical properties and excellent wear resistance. After curing, it can be applied to the field and ground according to the size, and no field machining is required. Repair the scratches on the piston, avoid replacement and treatment, and prolong the service life of the equipment.
        Operation steps of four column hydraulic press:
        1. Clean the surface with absorbent cotton dipped in acetone or absolute ethanol.
        2. The scratched part was treated with angle grinder, polished to a depth of 1 mm or more, and then the groove was polished along the outer wall of the cylinder. Drill holes at both ends of the scratch to deepen and change the force.
        3. It takes 24 hours at 24 ° C to fully demonstrate its various properties. In order to save time, the temperature of tungsten halogen lamp can be increased. The curing time is reduced by half for every 11 ° increase in temperature, and the curing temperature is 70 ° C.
        4. Uniform and balanced metal repair materials were applied on the scratched surface of the four column hydraulic press. Start thinning, cover the scratched surface evenly to ensure that the material adheres to the metal surface, then apply it to the entire repaired part and repeat to fill the material to the required thickness to ensure that the target is achieved and slightly higher than the cylinder barrel outer wall surface.
        5. After the material is solidified, the fine grinding wheel or scraper is used to repair and level the material above the outer wall of the cylinder.
         
         
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