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A multi-stage drawing method for bendable flexible zinc-clad steel lightning protection grounding wire

A lightning protection grounding, zinc-clad steel technology, applied in metal wire drawing, process efficiency improvement, manufacturing tools, etc. layer cracking or spalling and other problems, to achieve strong practicability and economic value, improve comprehensive utilization, and improve construction efficiency.

Active Publication Date: 2022-08-09
ZHEJIANG HUADIAN LIGHTENING PROTECTION TECHCO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the main materials used in the construction of lightning protection grounding system are copper-clad steel and zinc-clad steel (zinc-clad steel, zinc-based alloy steel). When using zinc-clad steel (zinc-clad steel, zinc-based alloy steel) The physical property is brittle and lacks ductility. During the construction of zinc-clad steel products, there are often turnings due to construction needs, so that when the zinc-clad steel grounding wire is bent, the zinc layer of zinc-clad steel products cracks or peels off. , thus affecting the anti-corrosion ability of zinc-clad steel grounding wire products, and then affecting the safety of the entire lightning protection grounding system

Method used

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  • A multi-stage drawing method for bendable flexible zinc-clad steel lightning protection grounding wire
  • A multi-stage drawing method for bendable flexible zinc-clad steel lightning protection grounding wire
  • A multi-stage drawing method for bendable flexible zinc-clad steel lightning protection grounding wire

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Embodiment 1

[0029] The final finished product specification is φ16-a3 (that is, the total diameter is 16mm, the thickness of the zinc layer is 3mm, and the diameter of the steel core is 10mm).

[0030] Material requirements before processing: φ20.8mm-A3.9, the purpose is to control the cross-area change ratio of zinc-packaged steel products at 35-45 % by pulling the process. the goal of.

[0031] A multi-level pull method of bending flexible zinc-pack steel lightning protection ground line, including the following steps: select 100 meters φ20.8mm-A3.9, heat the product in the industrial return furnace for 30 minutes, heat thermal insulation for 10 minutes, temperature temperature Set to 300 ° C. After 40 minutes, remove the product from the back furnace and move it to the closing device (heated in the industrial oven, the main working principle is to prevent the product from appearing in the process of pulling up, preventing the product from appearing at straight when straight. Zinc layer bre...

Embodiment 2

[0036] The final finished product specification is φ14-a1 (that is, the total diameter is 14mm, the thickness of the zinc layer is 1mm, and the diameter of the steel core is 12mm).

[0037] Material requirements before processing: φ18.2mm-A1.3, the purpose is to control the cross-area change ratio of zinc-packaged steel products at 35-45 % by pulling the process. the goal of.

[0038]A multi-level pull method of bending flexible zinc bag steel lightning protection ground line, including the following steps: select 100 meters φ18.2mm-A1.3, heat the product in the industrial return furnace for 25 minutes, heat thermal insulation for 10 minutes, temperature temperature, temperature Set to 280 ° C. After 40 minutes, remove the product from the industrial oven and move it to the closing device (heated in the return furnace, the main working principle is to prevent the product from appearing in the process of pulling up, preventing the product from appearing in straight when straight. Z...

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Abstract

The invention provides a multi-stage drawing method for a bendable flexible zinc-clad steel lightning protection grounding wire, comprising the following steps: heating and keeping the zinc-clad steel, then straightening, and drawing the straightened zinc-clad steel It is obtained after multi-stage drawing; the reduction ratio of the cross-sectional area of ​​the zinc layer of the zinc-clad steel after drawing is greater than 35%. The multi-stage drawing method of the bendable and flexible zinc-clad steel lightning protection grounding wire of the present invention makes the crystal structure of zinc change from flaky crystal to refined granular crystal structure, improves the bonding force between atoms, so as to achieve Change the physical properties of zinc, change the crystal structure of the metal to make it have a certain ductility, so that the zinc layer on the surface of the zinc-clad steel product will not crack or peel off when it is bent during construction, and a turning radius of 20 times its own diameter can be achieved. Bend 90° in the middle.

Description

Technical field [0001] The present invention is the field of lightning protection grounding projects, especially a multi -level pull method that involves a multi -level pull -down -resistant piercing ground wire of bending flexible zinc, and the lightning protection. Background technique [0002] At present, the construction of the lightning protection grounding system is copper -covered steel, zinc -covered steel (zinc packaging steel, zinc conformal steel steel). When using zinc -covered steel (zinc packaging steel, zinc conformal steel) as the grounding line, due to zinc, zinc’s The physical properties are crispy and lack of ductility. During the construction of zinc -packaged steel products, when the construction needs are often turned, and the zinc -wrapped steel floor is bent, the zinc layer of the zinc -steel products will crack or peel off the phenomenon , Thereby affecting the resistance and corrosion capacity of zinc Baodang ground line products, which in turn affects t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21C1/04B21C19/00
CPCB21C1/04B21C19/00Y02P10/20
Inventor 刘昌恩黄会忠
Owner ZHEJIANG HUADIAN LIGHTENING PROTECTION TECHCO
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