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    201 Hard Stainless Steel Strip

    'Atomizing water into atomized spray with a certain pressure of air and spraying it onto the surface of hot rolled steel to control cooling. This cooling method is called spray cooling, or fog cooling. Spray cooling has the following characteristics: the cooling of national steel is relatively uniform; the range of adjustable cooling rate is relatively large, which can be adjusted from air-cooled to water-cooled; the circle can save cooling water; due to the two systems of water supply and gas supply, the investment of equipment is relatively high, the inherent noise is bigger, and the solid fog is larger. The device for removing haemorrhoids. The form of spray nozzle can be divided into two types: internal mixing and external mixing. The principle is: domestic mixed nozzle means air and water are mixed atomized in the atomizing chamber and then ejected together. The external mixing nozzle of cold garden means that air and water are ejected from the nozzles and mixed atomized outside the nozzle to make hot rolled materials. The surface is cooled rapidly.
    What are the characteristics of the coiler of the cold rolled strip mill?
    Common cold rolled strip coilers have solid drum type, quadripyramid type, octagonal type, quadrilateral wedge type, bow block type and other structures.
    (1) Solid drum coiler is generally supported at both ends. It has simple structure, high strength and rigidity, and is used for human tension coiling. The disadvantage of this method is that rewinding method is needed for coil unloading, which affects the production capacity of the rolling mill. In order to reduce the assistant time of unloading and improve the operation rate, the rotary double drum structure is often used. When the solid drum is coiled under human tension, the strip will produce high radial pressure on the drum. In order to prevent the plastic deformation of the drum, the material of the drum is usually made of alloy forged steel and heat treated uniformly.
    (2) In order to overcome the difficulty of unloading solid drum, a quadripyramid drum is designed for the quadripyramid coiler. When the diameter of the quadripyramid drum expands, 304 soft mirror stainless steel strip directly pushes the pyramid axis by expanding and contracting cylinder, so that the sector block generates radial displacement. Because of the absence of intermediate parts, the pyramid shaft has large diameter and high strength, and can withstand large tension (up to 400-600 kN). It is commonly used in large tension coilers of multi-roll reversible cold rolling mills and coilers of cold rolling mills. The pyramidal axis of the drum has a positive and an inverted pyramidal type. The coiler drum of the square pyramid coiler of the roll mill is mainly composed of pyramid shaft, sector block, clamp and expansion cylinder, and its structure is relatively simple.


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    联系美亿冷暖Zhenjiang Jinhuasheng Stainless Steel Co., Ltd.
    Consultation hotline: 0511-80857836
    Mobile phone number: 18852803956
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    Address: No. 50 Zhenju Road, Zhenjiang City, Jiangsu Province
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    Consultation hotline: 0510-66927617
    Mobile phone number: 13182066718
    Company Fax: 0510-66927618
    Company Address: No. C5-330, Phase II, Dongfang Steel City, Xishan District, Wuxi City

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