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Hpb63-2 lead-brass wire rod production technology

A production process, lead brass technology, applied in the field of Hpb63-2 lead brass wire production process, to achieve the effect of easy control, smooth surface and convenient operation

Inactive Publication Date: 2015-05-20
QINGDAO HONGTAI COPPER IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The domestic production process has not yet formed

Method used

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Experimental program
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Effect test

Embodiment

[0013] The process flow is: extrusion to 12.3mm→acid washing→drawing to 9.5mm→semi-finished product annealing→drawing to 7.6mm→semi-finished product annealing→drawing to 5.8mm→semi-finished product annealing→drawing to 4.5mm→semi-finished product annealing→drawing to 3.2mm→ Annealing of semi-finished products → drawing to 2.2mm → annealing of finished products → drawing of finished products to 2.032±0.0254mm → inspection → trapped materials → storage. Among them, acid washing is at normal temperature, washing in 15% to 25% sulfuric acid aqueous solution for 10 to 30 minutes, controlling acid for 5 minutes, rinsing with high-pressure water, and drying after washing; the annealing temperature of semi-finished products is 650 to 670 ° C, and the temperature is kept for 65 to 75 minutes. Oxidation is carried out; the annealing temperature of the finished product is 630°C, and the temperature is kept for 2.5h, and the oxidation is carried out.

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Abstract

The invention discloses a Hpb63-2 lead-brass wire rod production technology. The technology comprises the following steps: extruding a wire rod to a length of 12.3 mm, performing acid-water washing, drawing the wire rod to a length of 9.5 mm, annealing semi-finished product, drawing the wire rod to a length of 7.6 mm, annealing semi-finished product, drawing the wire rod to a length of 5.8 mm, annealing semi-finished product, drawing the wire rod to a length of 4.5 mm, annealing semi-finished product, drawing the wire rod to a length of 3.2 mm, annealing semi-finished product, drawing the wire rod to a length of 2.2 mm, annealing finished product, drawing the finished product to a length of 2.0066 to 2.0574, examining, aging, and storing in a warehouse. The technology is simple, the operation is convenient and is easy to control, and the production period is short. Middle annealing is adopted to eliminate processing hardening, the processing is carried on after the plasticity is recovered, the mechanical performance of the wire rod is guaranteed, and the product surface is smooth and clean.

Description

[0001] technical field [0002] The invention belongs to the production process of wire rods, in particular to a H pb63-2 Lead brass wire production process. [0003] Background technique [0004] h pb63-2 Lead brass is complex brass, its copper content is 61.0%-64.5%, lead content is 1.3%-2.3%, iron impurity is less than 0.1%, other impurity content meets ASTM standard, and the balance is zinc. The domestic production process has not yet formed. [0005] Contents of the invention [0006] In order to overcome the above-mentioned defects existing in the prior art, the object of the present invention is to provide a H pb63-2 The production process of lead brass wire is simple and easy to control. [0007] H provided by the present invention pb63-2 Lead brass wire production process, the process is: extrusion to 12.3mm→acid washing→drawing to 9.5mm→semi-finished product annealing→drawing to 7.6mm→semi-finished product annealing→drawing to 5.8mm→semi-finished product a...

Claims

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Application Information

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IPC IPC(8): B21C37/04C22F1/08
CPCB21C37/04C22F1/08
Inventor 李保成
Owner QINGDAO HONGTAI COPPER IND