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Diamond wire saw wire steel wire and connectors
Publish Date:2020-10-16
The diamond wire saw is a rope-shaped cutting tool that combination of soft and hard. Compared with the previous extremely rigid sawing products, the diamond wire saw has a processing principle of overcoming strength with softness.During cutting process, the wire saw is straightened by the wire saw machine, and the wire saw is rotated at a high speed, so that the wire saw and the cutting material form different curved shapes. The wire saw maintains the cutting pressure during the cutting process to maintain cutting efficiency.
As the carrier of diamond beads, the steel wire has a significant impact on the cutting performance of the wire saw. If the life of the steel wire is short and broken frequently, the cutting performance of the diamond wire saw cannot be reflected, and the broken steel will cause great danger. Steel wire are also particular about rigidity and flexibility. For example, if the rigidity is too high, the wire rope will easily break if the wire rope is excessively bent. If the wire rope is too flexible, too much flexibility will cause the wire rope to become thinner or deformed, resulting in the entire wire saws are can’t use. Therefore, the steel wire is very important for the diamond wire saw, which can directly determine the life and cutting efficiency of the wire saw.
The early steel wire used cable steel wire, high strength, but insufficient flexibility, such a wire saw has a small chance of breaking the rope, and the cost is also very low. However, this kind steel wiree is not flexible enough. When cutting special-shaped stone or cutting small surface stone, Deformation and bending of the wire saw will occur.
In consideration of rigidity and flexibility, the steel wire must provide a longer service life, preferably higher than the service life of the beads. After a long-term study, it is found that to increase the service life of the steel wire, the fatigue strength should be increased. Among all the mechanical properties of the steel wire, the key indicator is the fatigue strength. Take D9.5mm wire saw with for example, the length is 14.8m with cutting speed 30m/s. Every time the wire saw rotates, it changes from bend to straight, and from straight to bend alternately loops twice. The use time of a wire saw is about 500-1000h (varies depending on the cutting size the cutting object), at least 3.8 million cycles, and more than 7 million cycles of bending and straightening. What's more, when the wire saw is used, high-frequency vibration may occur due to the unstable operation of the machine. Therefore, the steel wire must have a higher fatigue strength to meet the requirements of the wire saw.
After talking about the steel wire, the connectors piece are also very important. it is related to the bead fixing technology. The common bead fixing methods include spring fixing, plastic or rubber fixing, spring + plastic or rubber composite fixing. Let's take a look at the usage of these connectors.
Spring fixed wire saws are mostly used for marble mining, and plastic wire saws are mainly used for shaped stone shaping and block cutting. Rubber rope is mainly used for granite mining, and springs and rubber are mostly used for domestic marble mining and block shaping. The spring + plastic is mostly used for the shaping of domestic blocks.
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