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No-pickling cold drawing processing method of steel wire

A processing method, no pickling technology, used in metal processing equipment, manufacturing tools, grinding machines, etc., can solve problems such as operator injury and environmental pollution, and achieve the effect of eliminating pollution and eliminating bodily harm.

Active Publication Date: 2015-07-22
NINGBO ZHONGHE AUTO PATS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The first pickling is to remove the oxide scale on the steel wire billet, and the second pickling is to remove the oxide scale on the steel wire after annealing. Relying on hydrochloric acid or sulfuric acid solution to remove it will cause serious pollution to the environment and cause physical harm to the operators. harm
Moreover, after pickling, it is necessary to carry out electrolytic phosphating or chemical phosphating, and coat a layer of phosphate film on the surface of the steel wire rope. s damage

Method used

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  • No-pickling cold drawing processing method of steel wire
  • No-pickling cold drawing processing method of steel wire

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Embodiment Construction

[0014] The following specific examples further illustrate the present invention.

[0015] Steel wire of the present invention does not have pickling cold drawing processing method, it comprises the following steps:

[0016] (1) Select a steel wire rope with an outer diameter of φ5.50mm and first spheroidize and anneal;

[0017] (2) The first cold drawing: cold drawing is carried out through a joint drawing machine, and the steel wire rope passes through a set of guide wheels for straightening the steel wire rope after entering. Steel brush 2, a group of rollers 3, another group of steel brushes 2 with a dislocation distribution up and down and at 45 degrees to the horizontal plane, and another group of rollers 3; then pass through four groups of inner holes with sizes of φ4.70mm and φ4 .16mm, φ3.66mm, φ3.26mm rolling head through the mold, so that the final steel wire rope with an outer diameter of φ3.26mm; the wire speed of the steel wire rope passing through the puller is 1...

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Abstract

The invention discloses a no-pickling cold drawing processing method of a steel wire, which comprises the following steps of: (1) selecting a steel wire blank with the external diameter of 5.50 for spheroidizing annealing, (2) performing cold drawing for the first time, (3) performing annealing treatment: annealing temperature at 680-700 degrees and heat preservation period for 5h, then shutting down a furnace, cooling a steel wire rope to below 250 degrees, discharging, naturally cooling in air, (4) performing cold drawing for the second time, and (5) oiling and packaging. The method does not adopt any chemical method, but adopts a pure mechanical method, thereby greatly lowering a pollution level.

Description

technical field [0001] The invention relates to a method for processing steel wire without pickling and cold drawing. Background technique [0002] The purpose of steel wire cold drawing processing is to shrink the steel wire rope with a larger outer diameter into a steel wire rope with a smaller outer diameter. The steps of the current steel wire cold drawing processing method are roughly as follows: steel wire billet, spheroidizing annealing, pickling for the first time, cleaning, neutralization, drying, cold drawing for the first time, annealing, pickling for the second time, cleaning, neutralizing Blending, drying, second cold drawing, oiling, packing. The first pickling is to remove the oxide scale on the steel wire billet, and the second pickling is to remove the oxide scale on the steel wire after annealing. Relying on hydrochloric acid or sulfuric acid solution to remove it will cause serious pollution to the environment and cause physical harm to the operators. ha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21C1/04B24B27/033
Inventor 鲍德夫
Owner NINGBO ZHONGHE AUTO PATS
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