Hot Galvanized Steel Strip

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Hot & Cold rolled galvanized steel strip with excellent quality and various thickness


Materail: Q195 steel sheet.

Processing technique: Hot & electric rolled galvaznized

adopt wide hot galvanized strip produced by famous company as Bao Steel which has even thickness
we introduce a new complete set of cutting technology
keep steady precision
reduce waste of material farthest
adopt physical technique in order to make the galvanized level thicker
enhance the rustproof capability
adopt non-chrome passivation technique
protect the environment against pollution
adopt level pressure technique and inert gases protect technique
make the galvanized level brighter
delay oxidation phenomenon in natural environment

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Q:What is galvanized steel strip? What's the difference between galvanized strip and cold rolled strip?
Galvanized steel strips are cold-rolled or hot-rolled, long and narrow strip steel plates coated with different layers of material called zinc. Hot galvanizing has the advantages of uniform coating, strong adhesion, long service life and so on.
Q:What is the cause of the deviation of the strip in the rolling process? How to deal with it?
Roll, roll grinding after due to severe pressure, taper, makes the school not to the operator in the rolling process of double pendulum regulation increases taper, will cause serious side light waves caused by shape defects, cause strip deviation and broken belt.
Q:What are the differences between strip steel and round steel? Where are they mainly used?
Strip steel is widely used in the production of welded steel pipe, made of cold formed steel billet, manufacturing bicycle frame, rim, clamp, gasket, spring, saw blades, hardware and blades.
Q:Pickling process of cold rolled strip
Pickling process of cold rolled strip:Strip steel must be pickled before cold rolling, in order to remove the oxide scales on the surface of the steel coil which is harmful to the cold rolling, because the iron oxide sheet will damage the roller surface in cold rolling, and lead to defects on the strip surface. The most commonly used is continuous pickling of strip steel. The advanced cold rolling mill adopts continuous pickling line or Push-pull Pickling at high speed. Taking continuous pickling as an example, pickling is carried out continuously through several pickling tanks. To make the job line process continuous, the front end of a hot strip coil and the rear end of a steel coil are welded together. After pickling, the strip is cut and rolled according to the required roll weight and reel diameter.
Q:What's the difference between strip 235 and 235b?
Q235 is Q235a, Q235 material according to the sulphur and phosphorus content from high to low is divided into ABCD four grades, grade a sulfur phosphorus was the highest relative performance (welding, plasticity) is the worst, D performance is the highest, the lowest content of parathion
Q:What's the cutting edge of cold rolling strip?
Do you mean the cutting edge is the indication of the steel roll out of the factory? When the steel factory leaves the factory, the steel coil will have the burr and the cutting edge two kinds, the rough edge is the steel strip two, the edge is not neat. The trimming is the two sides of the steel band, and the width of the strip is certain when it is trimmed.
Q:What is the meaning of C hot strip material, B material is how to distinguish between
Due to work hardening of cold rolled steel plate, a certain degree of toughness is low, but can yield better than that used to cold spring piece parts, at the same time as the yield point is close to the tensile strength, so the use of risk is not predictable, prone to accidents in the load exceeds the allowable load.
Q:The relation between hot rolled strip and cold rolled coil, hot rolled strip and cold rolled strip
Cold rolled coil (annealed): hot rolled coil obtained by pickling, cold rolling, batch annealing, flattening, and finishingThat is, the biggest difference between hot rolled coil and cold rolled coil is that the heat treatment process is different. (annealing process)Compared to the specific heat roll, the cold-rolled roll has a bright surface and a high degree of finish, but it produces more internal stress and is often annealed after cold rolling.
Q:What is the difference between galvanized steel cold base galvanized steel strip and hot galvanized steel strip?
The soaking process is mainly used in electroplating process, some appearance of repairing damaged more, a large number of plates or on the hot dip galvanizing process implementation. Cold is the use of zinc plating on the surface of the steel plate with filler replacement attached to a layer of zinc to the surface of the steel plate, the plating thickness is very small, generally between 10-50g/ square meters, anti-corrosion performance is poor, and its effect and general coating, sometimes as coated with a layer of anti rust oil in key parts this method should not be used so as not to affect the structure and properties of corrosion. The above is hot dip galvanized plate is heated to 500 DEG C into liquid zinc (zinc liquid temperature about 470 degrees Celsius), the formation of Zn Fe alloy coating and zinc layer, this method is the most commonly used, and the thickness of zinc can be controlled in more than 20 mu, ranging from 60g-275g/ square meters, even more thick, far better than cold plating process.
Q:Is there any difference between galvanized steel strip and galvanized sheet?
Galvanized steel strip, in narrow sense, refers to strips of steel.

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