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Continuous variable-diameter metal wire and machining method thereof

A processing method and metal wire technology, applied in the direction of wire drawing dies, slender components, building components, etc., can solve the problems of large deformation rate, etc., and achieve the effect of increasing work efficiency and simple and easy control of processing methods

Active Publication Date: 2020-06-02
周鑫 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This patent document relates to a wire material processing method with a large deformation rate, which is suitable for the processing method of metal wire materials with uniform length and diameter, but not suitable for processing metal wire materials with variable diameters.

Method used

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  • Continuous variable-diameter metal wire and machining method thereof
  • Continuous variable-diameter metal wire and machining method thereof
  • Continuous variable-diameter metal wire and machining method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] This embodiment relates to a metal wire with two kinds of diameter specifications, and its processing method is as follows

[0029] S1: Select 300m of 72A steel wire with a diameter of 5.0mm, pickling, phosphating, and heat treatment.

[0030] S2: Forward drawing forming, using a bidirectional drawing system to draw the pretreated 72A steel wire forward into a continuously variable diameter steel wire with a length of 200 m, a diameter of 4.2 mm, and a remaining length of 5.0 mm in diameter. The diameter of the take-up reel is 0.8m, and after 79 rotations, the forward drawing stops.

[0031] S3: Reverse extraction, the 72A steel wire was extracted from the mold in reverse direction using a bidirectional drawing die to prepare continuous 72A steel wires with diameters of 5.0mm and 4.2mm. The strengths of the two sections of steel wire were 1380.3MPa and 1493.7MPa respectively.

Embodiment 2

[0033] This embodiment relates to a kind of wire material with three kinds of diameter specifications, and its processing method is as follows

[0034] S1: Select 7xxx series aluminum alloy wires with a length of 300m and a diameter of 5.0mm, and the aluminum alloy wires are heat-treated at 420°C.

[0035] S2: Combining with the bidirectional drawing system, the pretreated 7xxx series aluminum alloy wire is forward drawn into a continuously variable diameter aluminum alloy wire with a length of 200 m, a diameter of 4.4 mm, and a remaining length of 5.0 mm in diameter.

[0036] S3: Reverse extraction, and then use a bidirectional drawing system to reversely extract the 7xxx series aluminum alloy wires from the mold to prepare continuous 7xxx series aluminum alloy wires with a diameter of 5.0mm and 4.4mm, with strengths of 263.6MPa and 4.4mm respectively. 285.4 MPa.

[0037] S4: Replace the two-way drawing die with a diameter of 3.9 mm for the sizing belt, repeat step S2, and d...

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Abstract

The invention relates to a continuous variable-diameter metal wire. The metal wire is provided with a variable-diameter section, wherein the variable-diameter section comprises multiple wire sectionswith different diameters, the diameters of the multiple wire sections are gradually increased or decreased according to one direction, and the lengths of the multiple wire sections are the same or different. A machining method of the metal wire comprises the following steps of (1) preparing a wire rod, and pretreating the wire rod; (2) preparing a bidirectional drawing die according to variable diameter drawing of each wire section of the wire; and (3) sequentially performing drawing forming on wire sections of the wire rod according to the sequence of the forming diameters from small to largeor from large to small. According to the continuous variable-diameter metal wire and the machining method thereof, variable-diameter metal wires with different diameters and bearing capacities can bemachined.

Description

technical field [0001] The invention relates to a diameter-reducing metal wire and a forming processing method thereof. Background technique [0002] After decades of development, metal wires have formed various types such as structural wires, spring wires, and rope wires, and are widely used in national defense, military, transportation, and building structures. However, due to the limitations of structural size and performance, steel wires or wire ropes of different diameters are often required in the same structure or part. At present, steel wires or wire ropes of different diameters are often used to connect through welding, winding, etc. to realize the application. However, the welding and winding operations of metal wire are complex and difficult, and also have an important impact on the static and dynamic strength and life of the wire or rope, which cannot ensure the repeatability of product performance in each production batch. [0003] Therefore, the development o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21C3/14B21C3/06B21C1/02B21C1/14F16S3/00
CPCB21C1/02B21C1/14B21C3/06B21C3/14F16S3/00
Inventor 周鑫郑锐侯文达
Owner 周鑫
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