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What are the uses of galvanized steel coils?
Galvanized coils are very important in our daily lives, such as construction, home appliances, automobiles, transportation, and household industries. The galvanized coil is a thin steel plate that is immersed in a molten zinc bath so that a layer of zinc adheres to the surface. Galvanized coils can be divided into hot-rolled galvanized coils and cold-rolled hot-dip galvanized coils. They are mainly used in construction, home appliances, automobiles, containers, transportation, and household industries. Especially industries such as steel structure construction, automobile manufacturing, and steel warehouse manufacturing. Demand from the construction industry and light industry is the main market for galvanized coils, accounting for about 30% of galvanized sheets. Also, judging from the consumption of galvanized steel sheets in the home appliance industry, air conditioners are the main product that consumes galvanized steel sheets. The back panel of the indoor unit of the air conditioner, the back panel of the cabinet unit, the internal components, the casing, and the interior of the outdoor unit are all made of galvanized sheets. On average, an air conditioner consumes 22 kilograms of galvanized sheets. In addition, each washing machine consumes 8 kilograms of galvanized sheets and each refrigerator consumes 3 kilograms of galvanized sheets. The automobile industry is also a major industry in the consumption of galvanized coils, and its weight is much heavier than that of the home appliance industry.
What are the processing flow of Zn-Al-Mg steel coil?
The production process of zinc-aluminum-magnesium steel coil can be divided into raw material preparation, surface treatment, forming and processing, quality inspection, packaging and transport.
1.Raw material preparation
Steel coil: Choose the steel coil that meets the requirements as raw material, the thickness is generally between 1-3 mm.
Zinc-aluminum-magnesium alloy: as the surface treatment material, it is used to improve the corrosion resistance and decorative performance of steel coil.
2. Surface treatment
Pickling: Remove the oxide film and impurities on the surface of steel coils to ensure a clean surface.
Galvanized: A layer of zinc is plated on the surface of steel coils to form a protective layer and improve corrosion resistance.
Aluminium-magnesium coating: Coating a layer of aluminium-magnesium alloy on top of the galvanized layer to further enhance the corrosion resistance and decorative properties.
3. Forming process
Straightening: Unroll and straighten the steel coil to ensure the flatness of the plate.
Cutting: Cut the steel coils into different lengths and widths according to requirements.
Forming: Use the forming machine to process the cut coils into the required shapes and sizes.
4. Quality inspection
Appearance test: Check the surface quality of the steel coil, such as whether the zinc-aluminium-magnesium alloy coating is uniform, whether there are scratches and so on.
Dimension test: Measure the length, width, thickness and other dimensions of the steel coil to see if they meet the requirements.
Mechanical properties test: carry out tensile, bending, impact and other tests on steel coils to check whether their mechanical properties meet the standards.
5. Packaging and Transportation
Packing: Use protective film, cardboard box and other materials to pack the steel coil to prevent damage during transport.
Marking: Mark the product name, specification model, production date and other information on the package.
Transportation: Use forklift or lorry to transport the packed steel coil to the designated place.
Q1: How can I get a quotation from you ?
A1:You can leave us message, and we will reply every message in time. Or we may talk on line by We Chat / Whats app/Email.
Q2:Can I get samples before order ?
A2:Yes, of course. Usually our samples are free. we can produce by your samples or technical drawings. But the customer will pay the freight.
Q3:What product information must I provide before making a purchase ?
A3:Please provide the grade,width,thickness,and surface treatment requirement,as well as the quantities you require.
Q4:What about product pricing information?
A4:Prices vary due to changes in raw materials on a regular basis.
Q5:Can I have a visit to your factory?
A5: Of course.Our factory located at No.1,Hengtong Road,Daqiuzhuang Industrial Zone,Tianjin,China.Customers that from all over the world are welcomed to our factory.
Q6:How long is your lead time?
A6:If it is in stock, it is usually 5-10 days. Or, if there is no inventory, 15-30 days, depending on the quantity.
Q7:What are your payment terms?
A7:Payment<=1000USD, 100% in advance. Payment>=1000USD 30% T/T in advance ,balance before shippment.If you have another question, please feel free to contact us as below.
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