Unlock instant, AI-driven research and patent intelligence for your innovation.

A method for manufacturing hot-dip galvanized sheet with high surface conductivity

A technology of hot-dip galvanized sheet and manufacturing method, which is applied in the direction of hot-dip galvanizing process, coating, metal material coating process, etc., can solve the problems of high surface non-conductivity, high surface resistance, and small spare space, and achieve Effect of improving surface quality, low resistance, and high conductivity

Active Publication Date: 2017-01-04
MAGANG (GROUP) HOLDING CO LTD +1
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Various coated galvanized products currently produced, after 16 points / side, double-sided 32-point detection, the surface conductivity cannot fully meet the requirements
On the one hand, the overall surface conductivity is poor, the surface resistance is high, and the surface non-conductivity rate is high, which cannot meet the user's requirements; on the other hand, the overall surface conductivity meets the user's requirements but is close to the upper limit. Uneven weight may exceed the upper limit and cannot meet user requirements

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment

[0022] Specific embodiment: surface roughness peak value RPc ( / cm) influences on surface conductivity, and surface resistance and surface non-conductivity rate are to adopt general-purpose detection equipment in this embodiment, to galvanized sheet positive and negative two sides 32 points detections obtain . In the embodiment, two aspects are mainly implemented: the control of the surface roughness and peak value of the substrate, and the control of the film weight and uniformity of the surface coating.

[0023] Substrate surface roughness Ra: 1.0μm, peak RPc( / cm): 75, coating film weight 1.1g / m 2 , The surface resistance is 0.052mΩ, and the non-conduction rate is 0%.

[0024] Substrate surface roughness Ra: 1.0μm, peak value RPc( / cm): 90, coating film weight 1.1g / m 2 , The surface resistance is 0.040mΩ, and the non-conduction rate is 0%.

[0025] Substrate surface roughness Ra: 1.0μm, peak value RPc( / cm): 115, coating film weight 1.1g / m 2 , The surface resistance is 0.02...

Embodiment 2

[0026] Embodiment 2: Effect of coating film weight and uniformity on surface conductivity.

[0027] Substrate surface roughness Ra: 1.0μm, peak value RPc( / cm): 90, coating film weight 1.1g / m 2 , The surface resistance is 0.040mΩ, and the non-conduction rate is 0%.

[0028] Substrate surface roughness Ra: 1.0μm, peak value RPc( / cm): 90, coating film weight 1.3g / m 2 , The surface resistance is 0.052mΩ, and the non-conduction rate is 50%.

[0029] Substrate surface roughness Ra: 1.0μm, peak value RPc( / cm): 90, coating film weight 1.45g / m 2 , The surface resistance is 0.058mΩ, and the non-conduction rate is 80%.

[0030] After the verification of the above examples, the surface roughness of the galvanized sheet is controlled at 2.0-2.5 μm, and the film weight of the surface coating is controlled at 1.1g / m 2 , the surface resistance value of the hot-dip galvanized sheet manufactured by the manufacturing method of the hot-dip galvanized sheet is less than 0.2MΩ, and the surface ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
surface roughnessaaaaaaaaaa
surface roughnessaaaaaaaaaa
film densityaaaaaaaaaa
Login to View More

Abstract

The invention discloses a method for manufacturing a hot-dip galvanized sheet with high surface conductivity. ‑‑‑surface coating treatment; among them, in the skin-passing and straightening process, the work rolls of the skin-pass mill work in the capacitive mode for roughening, and the surface roughness of the work rolls is controlled at 2.0-2.5 μm; the surface is highly conductive hot-plated The manufacturing method of galvanized sheet is to treat the galvanized steel strip and improve the surface treatment process of galvanized sheet to obtain a hot-dip galvanized sheet with extremely low surface resistance, high orientation and extremely low non-conductivity rate; it can ensure data Warehouse data security, to meet customer needs.

Description

technical field [0001] The invention relates to the field of hot-dip galvanized sheet manufacturing, in particular to a method for manufacturing a hot-dip galvanized sheet with high surface conductivity. Background technique [0002] Hot-dip galvanized sheets with high surface conductivity are generally used in the manufacture of data warehouse equipment for "big data" storage, which is very important for data security. All kinds of coated galvanized products currently produced, after 16 points per side, 32 points on both sides, the surface conductivity cannot fully meet the requirements. On the one hand, the overall surface conductivity is poor, the surface resistance is high, and the surface non-conductivity rate is high, which cannot meet the user's requirements; on the other hand, the overall surface conductivity meets the user's requirements but is close to the upper limit. If the weight is uneven, it may exceed the upper limit and cannot meet the user's requirements. ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C23C2/06C23C2/26
Inventor 刘茂林赵云龙严开龙陈德春王卫远章一樊
Owner MAGANG (GROUP) HOLDING CO LTD