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What should we do if the diamond wire saw is eccentrically worn?
Publish Date:2020-12-14
Wire saw eccentric wear refers to the diamond wire saw during cutting process, the beads are not evenly worn along the circumference, but only one side of the bead is worn, resulting in serious wear on the side of the bead or even to the steel wire rope, but the other side has a relatively thick working layer, it result the diamond wire saw life is greatly shortened and it is scrapped in advance. This situation is very common, especially for operators who are not familiar with wire saw products. (Because the diamond wire saw must be pre-twisted 1.5-4 turns/m before connecting the diamond wire saw. When working, the wire saw is moving around the axis Rotation drives the transfer of the beads, so as to achieve uniform wear. This process is called diamond wire saw winding. People who do not have rich experience in wire saw processing cannot accurately grasp the number of winding turns, which leads to the eccentric wear of the wire saw.)
Reasons for diamond wire saw eccentric wear
1. There is no twisting or not enough twisting turns before using. According to experience: For the wire saw used in the Chinese market, if it is used for block dressing or profile cutting process, 61 structural steel wire ropes are used, and the number of twisting is set at 1.5-2 turns/m; while the wire saw for mining uses 133 structural steel wire ropes , Because the internal force of the pre-twisting of the same number of twisting turns is small, the number of twisting turns is 3-4 turns/m. When using it, you are used to the large amount of feeding depth, and the number of twisting turns should be increased. In the middle and late stages of use, the number of twisting turns should be appropriately increased due to fatigue of the wire rope.
2. The amount feeding depth is too large, and the beads exert too much pressure on the cutting object, resulting in excessive friction between the beads and the cutting object, which prevents the beads from rotating around the steel wire rope axis.
Diamond wire saw solution
1. Standard usage, according to the requirements, and distinguish the usage, pre-twist the wire saw before the wire saw is connected.
2. Check the wire saw regularly during use. Once eccentric wear is found, increase the number of twisting turns. Depending on the eccentric wear, the increase can vary from 20% to 100%.
3. Reduce the amount of feeding depth.
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