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High-precision profiled wire rod drawing process

A drawing process and high-precision technology, applied in the field of high-precision special-shaped wire drawing process, can solve the problems of large material loss, low rolling precision, and uneven wire performance, so as to improve rolling precision and ensure rolling. Accuracy, the effect of reducing the loss of raw materials

Inactive Publication Date: 2019-10-25
浙江德立精密合金科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In recent years, the demand for special-shaped materials, especially small-section special-shaped materials, has increased significantly. Using the traditional drawing method, the loss of raw materials is large, the performance of the wire rod is uneven, and the rolling accuracy is low.

Method used

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  • High-precision profiled wire rod drawing process
  • High-precision profiled wire rod drawing process
  • High-precision profiled wire rod drawing process

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Embodiment Construction

[0031] In order to facilitate the understanding of those skilled in the art, the present invention will be further described in detail below in conjunction with embodiments, but the protection scope of the present invention is not limited to the following embodiments.

[0032] A drawing process of high-precision special-shaped wires, which sequentially includes the following steps:

[0033] A: Selection of raw materials: select wire with a diameter of 10.0±0.20mm;

[0034] C: Pre-forming: Pre-forming the pre-drawn wire obtained in step B with a forming machine to obtain figure 1 The preformed wire with H being 4.5±0.05mm and B being 10.0±0.1mm shown;

[0035] D: Forming and drawing: Use a wire drawing machine to form and draw the preformed wire obtained in step C to obtain figure 2 The H’ is 4.2±0.05mm, and B’ is 10.48±0.1mm.

[0036] E: Spheroidizing annealing: the molding wire obtained in step D is subjected to spheroidizing annealing treatment, first heating to 700°C, then holding f...

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Abstract

The invention relates to a manufacturing process for wire rods, in particular to a high-precision profiled wire rod drawing process. The process sequentially comprises the following steps that A, a raw material is selected, specifically, a wire rod is selected; B, pre-drawing is conducted, specifically, the selected wire rod is pre-drawn through a wire drawing machine; C, pre-forming is conducted,specifically, the pre-drawn wire rod is preformed through a molding machine, and a preformed wire rod is obtained; D, forming drawing is conducted, specifically, the preformed wire rod is formed anddrawn through the wire drawing machine, and a formed wire rod is obtained; E: spheroidizing annealing is conducted, specifically, the formed wire rod is subjected to spheroidizing annealing, and an annealed wire rod is obtained; and F, precise drawing is conducted, specifically, the annealed wire rod is subjected to precise drawing through the wire drawing machine, and a profiled wire rod is obtained. The procedures of pre-drawing, preforming, forming drawing, spheroidizing annealing and precise drawing are adopted, the loss of the raw material is reduced, the performance of the wire rod is uniform, and compared with traditional profiled wire rod drawing processes, the rolling precision is greatly improved.

Description

Technical field [0001] The invention relates to a manufacturing process of a wire, in particular to a drawing process of a high-precision special-shaped wire. Background technique [0002] Shaped wire usually refers to a wire with a non-circular cross-section, which has a wide range of uses and good development prospects. The main uses are: (1) Electronics and communication parts. Such as transformer winding resistance coil, fine-tuning sheet on TV picture tube. (2) Parts and components on vehicles such as automobiles and motorcycles. Such as automobile wiper DC motor commutator, electric locomotive trolley wire, automobile piston ring, tire profile, vehicle braking device, etc. (3) Watch straps and glasses frames. (4) Mechanical structural parts. Such as separators on drilling equipment, light-load bearing outer edges, mattresses, chair cushions and positioning clips in the construction industry, special steel wire ropes and strands, metal wire mesh, cloth, etc. (5) Toy pa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21C37/04
CPCB21C37/047
Inventor 不公告发明人
Owner 浙江德立精密合金科技有限公司
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