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Wire drawing die with nano diamond layer

A nano-diamond and wire drawing die technology, applied in the direction of wire drawing dies, etc., can solve the problems of reducing the service life of the die, die damage, large force, etc., and achieve the effects of prolonging the service life, improving production efficiency, and uniform force

Inactive Publication Date: 2015-01-07
沈阳北阳电缆制造有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0012] However, due to the large force in the working area of ​​the curved mold, when the wire drawing or stranding speed increases, the damage to the mold is more serious, which greatly reduces the service life of the mold

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  • Wire drawing die with nano diamond layer

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Embodiment Construction

[0044] The following describes the present invention in detail, and the features and advantages of the present invention will become more clear and definite along with these descriptions.

[0045] The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration." Any embodiment described herein as "exemplary" is not necessarily to be construed as superior or better than other embodiments. While various aspects of the embodiments are shown in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

[0046] The inventor found through research that the inner hole of the wire drawing die is designed to be linear, that is, the longitudinal section of each part of the hole shape is straight, which can reduce the drawing force of the working cone surface, and at the same time adjust each part of the inner hole of the die to achieve Appropriate angles make each part of the inner hole of the die have obvious t...

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Abstract

The invention discloses a wire drawing die with a nano diamond layer. The wire drawing die comprises a die base with a through hole and the nano diamond layer laminated on the inner surface of the through hole of the die base, wherein the through hole with the nano diamond layer is sequentially divided into a frustum cone-like inlet zone, a working zone, a sizing zone and an outlet zone from top to bottom, the zones are not in smooth transition, and the boundaries of the zones are clear, so that the die is stressed uniformly in the wire drawing process and the abrasion is reduced; meanwhile, the diamond layer laminated on the surface of the inner hole is high in hardness and low in surface roughness, so that abrasion of the surface of the inner hole of the die can be effectively reduced, then the quality of a drawn product is improved, and the service life of the die is prolonged.

Description

technical field [0001] The invention belongs to the technical field of wire drawing, and relates to a wire drawing die, in particular to a wire drawing die with a diamond nano-coating. Background technique [0002] The cable manufacturing industry has a history of 65 years from the early days of the founding of the People's Republic of China to the present. Most of the original drawing machines and stranding machines used curved alloy molds and polycrystalline molds to draw or twist wires. In the production process, especially the production of aluminum wire and aluminum alloy wire, it is difficult to guarantee the product quality. Due to the characteristics of low strength, high viscosity and hard oxide layer of metal aluminum itself, burrs are prone to appear on the surface of the conductor during the mold drawing process, and aluminum oxide is prone to appear at the die opening. Powder deposition often causes scratches on the surface of the conductor, which reduces the co...

Claims

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Application Information

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IPC IPC(8): B21C3/02B21C3/14
CPCB21C3/02B21C3/14
Inventor 王旸李明亮姜侠李志军黄继永
Owner 沈阳北阳电缆制造有限责任公司