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Production technology of high-strength steel-plastic composite binding tape

A technology of steel-plastic composite and production process, which is applied in the direction of metal material coating process, device for coating liquid on the surface, coating, etc., can solve the problem of low strength and performance of strapping steel, and achieve high adhesion and high quality High, high production efficiency effect

Inactive Publication Date: 2014-12-24
WUXI FANGZHENG METAL LIGATURE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to propose a production process of high-strength steel-plastic composite strapping, to solve the problem of low strength performance of strapping steel in the prior art, and to overcome the defects of bluing, galvanizing and galvanizing, In order to realize the production of high-strength strapping steel with a tensile strength above 1100MPa and an elongation above 10%

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A production process for high-strength steel-plastic composite strapping, the chemical composition of the steel is: C: 0.13%, Mn: 2.0%, Si: 0.50%, S: ≤0.04%, P: ≤0.04 %, Cr: 0.5%, B: 0.004%, others are Fe and unavoidable impurities; the production process described is to use the cold-rolled coil of the steel as the raw material, and the production steps are: uncoiling of the cold-rolled coil, slitting and slitting, surface Bluing, cooling, spraying, cooling and shaping, coiling; the bluing of the surface is carried out by means of intermediate frequency heating of electromagnetic induction coils, the bluing temperature is controlled at 460°C, the holding time is 35 seconds, and cooled to 165°C , carry out plastic spraying; described plastic spraying adopts high-voltage electrostatic plastic spraying device, and static voltage is 100kV, and described plastic spraying raw material is counted as polypropylene powder 90 parts by weight, titanium dioxide 12 parts, polyvinyl b...

Embodiment 2

[0021] A production process for high-strength steel-plastic composite strapping, the chemical composition of the steel is: C: 0.17%, Mn: 1.0%, Si: 0.70%, S: ≤0.04%, P: ≤0.04 %, Cr: 0.3%, B: 0.006%, others are Fe and unavoidable impurities; the production process described is to use the cold-rolled coil of the steel as the raw material, and the production steps are: uncoiling of the cold-rolled coil, slitting and slitting, surface Bluing, cooling, spraying, cooling and shaping, coiling; the bluing of the surface is carried out by means of intermediate frequency heating of electromagnetic induction coils, the bluing temperature is controlled at 480°C, the holding time is 25 seconds, and cooled to 175°C , carry out plastic spraying; described plastic spraying adopts high-voltage electrostatic plastic spraying device, and static voltage is 80kV, and described plastic spraying raw material is calculated as polypropylene powder 94 parts by weight, titanium dioxide 8 parts, polyvinyl ...

Embodiment 3

[0023] A production process for high-strength steel-plastic composite strapping, the chemical composition of the steel is: C: 0.15%, Mn: 1.5%, Si: 0.60%, S: ≤0.04%, P: ≤0.04 %, Cr: 0.4%, B: 0.005%, others are Fe and unavoidable impurities; the production process described is to use the cold-rolled coil of the steel as the raw material, and the production steps are: uncoiling of the cold-rolled coil, slitting and slitting, surface Bluing, cooling, spraying, cooling and shaping, coiling; the bluing of the surface is carried out by means of intermediate frequency heating of electromagnetic induction coils, the bluing temperature is controlled at 470°C, the holding time is 30 seconds, and cooled to 170°C , carry out plastic spraying; described plastic spraying adopts high-voltage electrostatic plastic spraying device, and static voltage is 90kV, and described plastic spraying raw material is calculated as polypropylene powder 92 parts by weight, titanium dioxide 10 parts, polyvinyl...

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Abstract

The invention discloses a production technology of a high-strength steel-plastic composite binding tape. The production technology comprises the following steps: by taking cold-rolled reels of steel as a raw material, unreeling the cold-rolled reels, slitting-shearing and splitting, performing surface bluing, cooling, spraying plastics, cooling and sizing, and reeling, wherein the surface bluing is conducted in a manner of carrying out medium-frequency heating by adopting an electromagnetic induction coil, the bluing temperature is controlled at 460DEG C-480DEG C, and the holding time is 25-35 seconds, the plastic spraying is carried out when cooling to 165-175DEG C; during the plastic spraying, a high-pressure static plastic spraying device is adopted, the static pressure is at 80-110kV, and the plastic spraying raw materials are as follows in parts by weight: 90-94 parts of polypropylene powder, 8-12 parts of titanium dioxide, 2-3 parts of polyvinyl butyral, and the plastic sprayed layer is double-sided, and one side is 0.1-0.3mm thick.

Description

technical field [0001] The invention relates to the technical field of metal packaging straps, in particular to a production process for high-strength steel-plastic composite straps. Background technique [0002] Strapping steel is a thin strip steel product to ensure the safe loading, unloading and transportation of goods. It is mainly used to pack goods such as steel, non-ferrous metals, light textile products, building materials, paper rolls (boards) and wool. Strapping steel requires high tensile strength and certain elongation, so it has the advantages of high strength, good ductility, firm binding and not easy to loose during transportation and loading and unloading. In addition, due to the long-term work in the outdoor environment, the strapping steel is required to have certain corrosion resistance. In strapping steel, high-strength strapping steel is mainly used for packaging and bundling of steel products (hot-rolled coils, cold-rolled coils, steel pipes, wire rod...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/32C22C38/38C23C8/10B05D7/24
Inventor 宋志方
Owner WUXI FANGZHENG METAL LIGATURE