Spiral-structure cutting steel wire and production device thereof

Abstract

The invention relates to the technical field of cutting steel wires, in particular to a spiral-structure cutting steel wire. The spiral-structure cutting steel wire comprises a steel wire body. Bent deformed parts are arranged on the steel wire body and spirally distributed in the axial direction of the steel wire body. The wave heights of the deformed parts in the radial direction of the steel wire body are the same. In addition, the invention further provides a production device of the spiral-structure cutting steel wire. The production device comprises a rotatable columnar hollow shell. Two pairs of torsion limiting wheels are arranged in the shell in the axial direction and are fixed in the shell through bearing pedestals. A deformation device is arranged between the two pairs of torsion limiting wheels. The steel wire sequentially penetrates the first torsion limiting wheel pair, the deformation device and the second torsion limiting wheel pair. After the above structure is adopted, the produced steel wire achieves a uniform and stable spiral wave shape, the defects of saw marks, steps and the like, caused by cutting steel wire fluctuation and the like, of a cut piece are thoroughly overcome, the quality of the cut piece is improved, the percent of pass of the cut piece is increased, and cost is reduced.

Description

technical field [0001] The invention relates to the technical field of cutting steel wire, in particular to a helical structure cutting steel wire and its production equipment. Background technique [0002] At present, the crystalline silicon slices mainly use straight steel wires, that is, ordinary cutting steel wires. Mortar is used for cutting on the multi-wire slicer. Steel wire came into being. At present, the deformed steel wires on the market mainly include structural lines, that is, the steel wires apply bending deformation to the steel wires on two near-vertical surfaces, and the ability to carry sand is improved. However, due to the different waveforms of the steel wires in different directions, it is easy to cause the slice surface to be non-parallel. , there is a certain difference in film thickness. [0003] Due to different processing methods, deformed steel wires with different structural characteristics are obtained, usually with structural lines and helica...

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Problems solved by technology

[0004] Structural wires in the prior art, such cutting steel wires have the following problems: due to the accuracy of the deformation wheel (including the ellipticity, eccentricity, and precision of the deformation teeth of the deformation wheel) that applies bending deformation to the cutting steel wire, the wave height generated is changing

However, this processing method, due to the addition of processing steps to eliminate residual torsion, has relatively low processing efficiency and high processing costs. Although the quality of the cut sheet is improved compared with the structural wire, the cost is also very high.

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