DALIAN TECH MACHINERY CO.LTD
How to deal with abnormal wear of Polyester Conveyor Belt?
- Lay the conveyor belt evenly on the workbench, and clean up the parts that need joints;
- According to the size line shown in the figure above, cut off and peel off diagonally, and cannot damage the lower canvas;
- Clean the residual glue with an electric steel wire brush, and do not cause scorching, lighting, etc. due to excessive temperature;
- Stack the two sides of the cut conveyor belt, pay attention to leaving a gap of 5-15mm between the same cloth layer, and check whether the joints are accurately matched with each other, if not, make corrections;
- Use gasoline to clean the cut glass layer of the conveyor belt, start to apply glue, and then apply glue again after it is dry. After the second glue dries out, start to paste the buffer tape at the gap of the same cloth layer;
- After the glue solvent is completely evaporated and dried, the tightness of the two sides of the adhesive tape is the same. The steps of the joints are aligned, the center line is aligned, and the tape is attached to the two sides from the middle of the tape to facilitate air escape from both sides. out;
- Vulcanization, the upper side pad iron on both sides of the conveyor belt, width 40-50mm, thickness 0.5-1mm thinner than the belt body of the conveyor belt, length 300mm longer than the length of the joint, and then clamp the joint part of the tape with a splint. Before bonding the two joints, place the lower frame of the vulcanizer, the water pressure plate pressurization device, the lower heating plate, and the white cloth in order. Spread the white cloth on the joint part of the tape and then cover the upper electric heating plate of the vulcanizer. The hot plate, the upper frame, and the lower frame are aligned, aligned, and evenly tightened. During vulcanization, some process parameters need to be controlled. It is necessary to press while heating. When the temperature reaches about 70 degrees, the pressure must reach 10kg/cm; when the temperature reaches about 100 degrees, the pressure must reach 16kg/cm. When the temperature reaches 100 degrees, stop pressing and continue to heat the temperature. When the temperature reaches 145 degrees, stop heating and start counting the vulcanization time. The vulcanization is over after 35 minutes of heat preservation, and the vulcanizer can be removed when it is naturally cooled to 75 degrees;
- After dismantling the vulcanizer, remove the burrs and spilled glue at the joints of the conveyor belt, and trim the conveyor belt clean and smooth.