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Machining process of directly pulling steel round rope into flat rope

A processing method and technology of flat wires, which are applied in the processing field of copper and copper alloy materials, can solve problems such as broken wires, high loss of copper materials, and low production efficiency, so as to reduce the number of knots, reduce copper consumption, and improve production efficiency Effect

Inactive Publication Date: 2011-06-22
ANHUI XINKE NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the pre-flattening process, the round wire is pressed by a flattening machine into an initial flat wire coil with a size of 1.25-1.49mm×3.45-4.20mm. In order to ensure the performance of the product and the quality of the wire surface, it is also convenient for the operator to set it up manually. The weight of each roll is usually 15-20kg. Excessive weight will increase the labor intensity of the subsequent process, but the weight of each finished product is usually 40kg. Joints are more frequent in the final flattening process; The oxidation-annealed primary flat wire coils are placed in strong acid solution, weak acid solution, neutral solution, and lye acid in sequence to wash off the oxide layer on the surface of the copper flat wire. The above-mentioned pickling process takes a long time and has low output. large, and the loss of copper is also high; in the final flattening process, the way of unwinding is free unwinding, so the initial flattened wire after the pickling process needs to be rearranged before it can be used, and it is often broken due to poor wire management. Production efficiency is not high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Take No. 3 copper flat wire as an example:

[0014] 1. Pre-flattening process:

[0015] 1.1 Flattening process:

[0016] φ2.74, tensile 460-490N / mm 2 After the copper round wire is actively paid off by the pay-off frame, it enters the flattening machine and is flattened into a flat wire of 1.49mm×3.45mm.

[0017] 1.2 Drawing process:

[0018] After adjusting the tension, the flattened flat wire enters the 11-die wire drawing machine, and is drawn into a 0.82mm×3.35mm flat wire through 8 dies. The matching die table is die 1: die 2: die 3: die 4: die 5:module 6:module 7:module 8=1.02:1.04:1.06:1.08:1.06:1.04:1.02.

[0019] 2. Annealing process: Send the flat wire produced in the wire drawing process into the annealing machine for online water seal annealing. After the tension control of the annealed flat wire, the wire take-up machine uses the I-shaped wheel to take up the wire into a coil with a weight of 600kg. flat line.

[0020] The annealing machine controls t...

Embodiment 2

[0023] Take No. 4 copper flat wire as an example:

[0024] 1. Pre-flattening process:

[0025] 1.1 Flattening process:

[0026] φ2.74, tensile 460-490N / mm 2 After the copper round wire is actively paid off by the pay-off frame, it enters the flattening machine and is flattened into a flat wire of 1.38mm×3.80mm.

[0027] 1.2 Drawing process:

[0028] After adjusting the tension, the flattened flat wire enters the 11-die wire drawing machine, and is drawn into a 1.00mm×3.70mm flat wire through 6 dies. The matching die table is die 1: die 2: die 3: die 4: die 5: Modulo 6: = 1.02: 1.06: 1.08: 1.06: 1.02.

[0029] 2. Annealing process: Send the flat wire produced in the wire drawing process into the annealing machine for online water seal annealing. After the tension control of the annealed flat wire, the wire take-up machine uses the I-shaped wheel to take up the wire into a coil with a weight of 700kg. flat line.

[0030] 3. Final flattening process: The finished machine pr...

Embodiment 3

[0032] Take No. 5 copper flat wire as an example:

[0033] 1. Pre-flattening process:

[0034] 1.1 Flattening process:

[0035] φ2.74, tensile 460-490N / mm 2 After the copper round wire is actively paid off by the pay-off rack, it enters the flattening machine and is flattened into a flat wire of 1.25mm×4.20mm.

[0036] 1.2 Drawing process:

[0037] After adjusting the tension, the flattened flat wire enters the 11-die wire drawing machine, and is drawn into a 1.00mm×4.10mm flat wire through 4 dies. The matching die table is die 1: die 2: die 3: die 4 = 1.03 : 1.07: 1.05.

[0038] 2. Annealing process: Send the flat wire produced in the wire drawing process into the annealing machine for online water seal annealing. After the tension control of the annealed flat wire, the wire take-up machine uses the I-shaped wheel to take up the wire into a coil with a weight of 800kg. flat line.

[0039] 3. Final flattening process: The finished machine processes the I-wheel take-up in...

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PUM

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Abstract

The invention discloses a machining process of directly pulling steel round wire into flattened wire, including a pre-flattening step, an annealing step, a finishing step. The pre-flattening step includes a flattening step and a filament pulling step. Comparing with the prior art, the pickling step is eliminated, copper consumption is lowered; the pre-flattening step is continuous on-line production, the coil weight of the flattened wire is enhanced to 400-1000kg, joint number of the finishing step is reduced, so that the entire production rate is enhanced.

Description

technical field [0001] The invention belongs to a processing method for copper and copper alloy materials, in particular to a processing method for straight-drawing flat wires of copper and copper alloy round wires. Background technique [0002] The existing processing method of flattened copper round wire is as follows: copper and copper alloy round wires of different specifications are melted and drawn, and the finished product is finally obtained through pre-flattening process, oxidation annealing process, pickling process and final flattening process. . In the pre-flattening process, the round wire is pressed by a flattening machine into an initial flat wire coil with a size of 1.25-1.49mm×3.45-4.20mm. In order to ensure the performance of the product and the quality of the wire surface, it is also convenient for the operator to set it up manually. The weight of each roll is usually 15-20kg. Excessive weight will increase the labor intensity of the subsequent process, b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21C37/04B21C1/00B21D41/04C21D1/26C21D9/52
Inventor 温道训周胜黄平王禹发
Owner ANHUI XINKE NEW MATERIALS
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