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09/24

2021

Color-coated steel plate

Color-coated steel plate

Color-coated steel sheets are produced on continuous lines using cold-rolled strips and galvanized strips (electro-galvanized and hot-dip galvanized) as substrates. After surface pre-treatment (degreasing and chemical treatment), one or more layers of liquid coating are applied using a roller coating method, followed by baking and cooling to obtain the sheets.

04/07

2020

Hongbo Company Waste Gas Monitoring Report

Hongbo Company Waste Gas Monitoring Report

Hongbo Company Waste Gas Monitoring Report

10/18

2018

Analysis of the Color Coated Steel Market

Analysis of the Color Coated Steel Market

According to the market monitoring by the Iron and Steel Information Research Center, the price of galvanized sheets in the Boxing market has generally increased this week (4.19-4.23). The price of Baogang produced 1.0*1250*C galvanized sheet is 5500 yuan (per ton, tax excluded, same below), which is the same as last week's price. The price of 1.5*1250*C galvanized sheet is 5500 yuan, unchanged from last week; the price of Bensteel produced 0.7*1000*C galvanized sheet is 5500 yuan, unchanged from last week, and the price of 1.0*1000*C galvanized sheet is 5450 yuan, unchanged from last week; the price of Hengtong produced 1.0*1000*C galvanized sheet is

10/18

2018

Trends in the Development of Coated Steel Sheet Production Technology

Trends in the Development of Coated Steel Sheet Production Technology

1) The use of high-quality substrates: The requirements for the surface, flatness, and dimensional accuracy of substrates are becoming increasingly stringent. For outdoor use, small zinc flower flat hot-dip galvanized steel coils are generally used, and it is best to use flat hot-dip galvanized steel coils without zinc flowers; in recent years, the trend of zinc alloy hot-dip coils is increasing. For indoor use, electro-galvanized steel coils can be used. Film-coated color plates use cold-rolled plates, and sanitary ware uses aluminum plate coils. 2) Improve the pretreatment process and pretreatment solution. A small number of devices and low costs have become mainstream processes, continuously improving the stability and corrosion resistance of the pretreatment solution. South Korea has used Cr+3 pretreatment solutions, and Japan has developed Cr+6-free pretreatment solutions.

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