Qianchen Metal Materials
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A steel product manufactured using a cold-rolling process, it offers superior surface quality, featuring a bright finish, greater dimensional accuracy and improved thickness uniformity. This is achieved through multiple passes and precise control during the cold-rolling process, which reduces the surface roughness of the steel coil and enhances its smoothness.
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Metal materials produced by applying a layer of zinc to the surface of thin steel sheets using a continuous galvanising process combine the mechanical strength of steel with the corrosion resistance of the zinc coating; they are widely used in sectors such as construction, household appliances and automotive manufacturing.
Phase I 1.4 million ton project
The first phase of investment is 1 billion yuan, mainly constructing 2 850mm acid rolling production lines, 1 0.5mm-2.5mm galvanizing production line, 2 1.0mm-3.0mm galvanizing production lines, 1 2.0mm-4.0mm galvanizing production line, 2 raw material longitudinal cutting production lines, and 4 galvanizing longitudinal cutting production lines, which can achieve an annual production scale of 1.4 million tons
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Phase II 1.7 million ton project
The second phase investment is 920 million yuan, mainly constructing one 1150mm acid rolling production line, one 0.4mm-1.2mm galvanizing production line, two 0.7mm-2.5mm galvanizing production lines, two galvanizing longitudinal cutting production lines, three black belt welded pipe production lines, and six metal hanging plating production lines, with an annual production scale of 1.7 million tons. At the same time, supporting facilities such as circulating water pump station, desalination station, acid regeneration, wastewater treatment station, air and nitrogen station, boiler room, galvanizing line flue gas denitrification system, substation, etc. will be built.
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The Manufacturing Process for Cold-Rolled Steel Strip
The production of cold-rolled strip steel begins with the hot rolling process, whose primary function is to roll the steel billet into strip steel of the desired thickness while eliminating defects in the steel. This process consists of several stages, including billet heating, hot rolling, cooling, and dust removal and temperature reduction.
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Application Characteristics and Precautions for Cold-Rolled Coils
As a key category within the cold-rolled product line, cold-rolled hard-rolled coils play an irreplaceable role in numerous industries due to their unique application characteristics. However, there are specific precautions to follow during their use to ensure processing quality and product stability.
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How to judge the rust resistance of galvanized steel strip
Galvanized steel strip, like other types of steel, can be cold-rolled or hot-rolled. Due to the complexity of hot-dip coating and the physical and chemical changes involved in engineering, the coating texture will be more uniform and stable, resulting in stronger adhesion
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