High grade hot rolled strip

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Strip is all kinds of steel rolling enterprises in order to adapt to different industrial sectors industrialized production of various kinds of metal or the needs of machinery products and the production of a narrow and long steel plate. Width of strip steel is also called the steel belt, it is within the 1300 mm, length according to the size of each roll is slightly different.

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Strip roll supply commonly, have high dimensional accuracy, good surface quality, easy to machining, saving materials, etc. With steel plate, the same strip according to the material divided into two categories, ordinary steel strip and high quality steel strip; According to the machining method cent two kinds of hot rolled strip steel, cold rolled strips.

Strip steel is widely used in the production of welded steel pipe and cold bend section steel billet, manufacturing bicycle frame, wheels, clamp, washer, spring leaf, saw blade, metal products and blades, etc.

The process flow

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Cold-rolled strip steel production process is commonly: pickling - rolling - processing lubrication to annealing, flat - shear - packaging.

Cold-rolled strip steel, pickling, rolling, annealing, rolling size synchronous lubrication, rust-proof oil - flat scale - polishing - packing

Heating furnace of hot rolled strip steel: - phosphorus removal machine, roughing mill, phosphorus removal machine, finishing mill, surface quality inspection instrument - layer of cold - reel, baling machine, injection machine - volume base slab

Inside furnace hot rolling strip production process: first, the temperature is up to the required rolling temperature, and is entered into the roughing roller on the slab of phosphorus removal machine of iron oxide, and then into the roughing rolling unit width and thickness of strip rolling, and then by the roller conveyor to finishing phosphorus removal machine to process the iron oxide on the strip surface, after entering the finishing rolling unit on the thickness and width of the strip is more precision rolling, strip steel by roller through a layer of cold surface temperature before coiling, after strict control into the reel be coil last baling, spray into the packaging volume of inventory.


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Q:How does the disc shear deal with the problem of side clips into the strip?
The disc shearing machine is a production line made up of uncoiling, feeding, shearing and coiling
Q:What's the reason for the strip after pickling?
Will it use a strong acid wash, and the temperature is too high to destroy the ductility of steel?.
Q:What gas does the shear of the strip weld require for the welder?
(1) inlet strip clamping mechanism.(2) shearing machine.(3) welding device.(4) export strip clamp mechanism.The inlet and outlet strip clamp mechanism is used to make the end of the strip to the middle and clamp to the welding position, including strip clamping, centering and positioning device.
Q:What does galvanized steel strip A6 mean?
The chemical and chemical reactions between the substrate and the molten bath of the hot galvanized steel pipe are complicated and the corrosion resistant structure is closely alloyed with zinc and iron alloy. The alloy layer is integrated with pure zinc layer and strip steel matrix. Therefore, it has strong corrosion resistance.
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:How to distinguish cold strip steel and cold rolled silicon steel sheet by simple and practical methods
First of all, from the thickness of silicon steel sheet are below 0.5MM and 0.5MM.
Q:Reasons for black side of hot strip galvanizing
The content of zinc chloride in plating bath is too low, which leads to some parts can not be plated and lead to local blackening.
Q:Is there any difference between galvanized steel strip and galvanized sheet?
Galvanized steel strip, in narrow sense, refers to strips of steel.
Q:Specification and use of cold rolled strip
Advantages of cold rolled strip:A very thin strip of steel (0.001mm), which is difficult to obtain by hot rolling method, can be obtained;It can make the product have high mechanical properties and wide range of performance;Guarantee to obtain the high precision size, the thickness deviation is small, along the strip width and the length aspect uniformity, the shape is good, the surface is bright and clean each kind of strip steel;Low cost and high efficiency;Rolling speed, with high productivity.Technological characteristics of cold rolled strip:When the strip is rolled in cold condition, because of the hardening of the strip, the intermediate annealing must be done to soften it and restore the plasticity so as to continue rolling;The surface iron oxide scales must be removed before rolling, thus ensuring the surface smoothness of the strip and reducing the wear of the roll;Adopting tension rolling to ensure good strip shape of strip, controlling the deviation of strip thickness and reducing rolling pressure, which is beneficial to rolling thin specification products.Using process cooling and lubrication, it is easy to control the temperature of roller and strip, reduce the friction between roll and strip, and reduce the rolling pressure. It is favorable to shape control and prevent the sticking roll of strip steel.

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