Hot Skin Pass Mill ＆ Tension Leveler Line for Ultra High-Strength Steel Hiroyuki Uematsu1, Ryutaro Ota1 1JP Steel Plantech Co. 2-6-23, Shinyokohama, Kohoku-ku, Yokohama, JAPAN, 222-0033 Phone: +81-45-471-3967 Email: [email protected] Summary In order to reduce CO2 generated from …
SKIN-PASS MILL Excellent flatness and a perfect finish. The advantages of skin-pass mills (temper mills) from Primetals Technologies include full compliance with tight strip …
the same for skin-pass rolling and vertical indentation at the same load. For the large work roll (R250), the skin-pass elongation corresponding to the maximum value of the peak pressure on the abscissa is approxi-mately 2%. Roughness transfer in skin-pass rolling can Fig. 3 Roughness profile model of roll surface12)
The present invention is distributed differently according to the physical properties of the material in the skin pass mill (Skin Pass Mill) and the load and production speed of the rolling rolls, by setting the elongation that varies depending on the rolling position of the rolling coil for each condition to ensure a constant elongation Regarding …
Kawasaki Steel Corp Priority date (The priority date is an assumption and is not a legal conclusion. ... Fig. 2D shows another wet skin-pass rolling mill system to which the present invention is applied. This system has a mill 11, a thickness sensor 12, a reduction ratio computing unit 13, a command sheet thickness computing unit 14, a sheet ...
To safely handle today's new materials – especially high-strength steels – the hot strip skin-pass mill (HSPM) comes with technology designed for materials with the "spring effect". Our solution for hot strip skin-passing is a mill in 4-high design – optionally with CVC® plus – complete with coil preparation station and pay-off ...
In general, the skin pass line of a hot rolling mill cools a hot rolled hot coil in a cooling station, and then supplies it to a side conveyor with a crane to correct the shape of the strip while passing through a pair of rolling rolls. To do this, hydraulic cylinders are installed at both sides of the lower side of the roll roll chocks, namely ...
The skin pass mill is the final rolling process for building quality into products. The strip is rolled at an elongation rate of a few percent in the rolling direction while predetermined tensions are set to the entry and exit sides of the mill to improve flatness, eliminate the characteristic of yield point elongation, and control mechanical ...
มาตรฐานและการรับรองคุณภาพ. คุณภาพชั้นสูง (Top Class Quality) เป็นกฏบัตรของโพสโค-ไทยน๊อคซ์ ที่ลูกค้าไม่เพียงจับต้องได้แต่เป็นที่ยอมรับทั้งในประเทศและ ...
Wet skin-pass rolling method - KAWASAKI STEEL CORPORATION. fig. 3 is a table showing the results of skin-pass rolling operations conducted starting with an extra low …
SPM의 목적. Skin Pass Mill이란 글자의 의미대로 일반적으로 적은 Reduction (4% 이내)을 실시하여 표면. 형상의 개선, 단면 형상의 개선 및 기계적 성질의 변화를 목적으로 하는데 있으며 열연 Coil. 용도의 SPM (t 1.2∼6.3)과 냉연 Coil의 SPM (일명 Temper Mill) 2가지로 나눌 수 ...
PROBLEM TO BE SOLVED: To suppress the meandering of a material to be rolled in rolling in a skin pass mill. SOLUTION: The reasonable amount of leveling is stored beforehand as a function with respect to rolling load, after measuring the rolling load at rolling, the target value of leveling is calculated using the function and set and the amount of leveling is …
4Hi skin-pass mill. Novel design features. Designed for a variety of steel grades from very low to very high strength; Used on continuous annealing and galvanizing lines, and can be coupled with a tension leveller; Up to 1,880mm wide and speeds up to 1,000 m/min; Detergent capture and filtering to minimize environment impact ; 6Hi skin-pass mill
The skin pass mill is the final rolling process for building quality into products. The strip is rolled at an elongation rate of a few ... Kawasaki-ku, Kawasaki, Kanagawa, 210-0855 Japan. 4) JFE Techno-Research Corporation, 2-7-1 Otemachi, Chiyoda-ku, Tokyo, 100-0004 Japan. (Received on March 18, 2020; accepted on April 20, 2020; originally ...
Skin-pass mill and tension leveller that achieve improved surface quality and higher-quality shape of steel sheets of various grades. Skin-pass mills improve the final strip quality, including strip surface defects and …
An object of the present invention is to provide a continuous annealing line tempering mill elongation control method for controlling a predetermined constant elongation through the control of the tension and rolling load of the steel sheet according to the elongation of the steel sheet in the SPM. . The present invention provides a method for controlling …
Optimization Technology of Roll Contours during Skin … The hot-rolled strip skin-pass mill is the important technological equipment of finishing process in the hot rolling plant, and …
A wet skin-pass rolling method for rolling a steel sheet by a mill while adjusting the hardness of said steel sheet through control of the rolling reduction. The method comprises determining an allowable range of reduction ratio from a predetermined desired range of hardness of the product, determining a command delivery-side sheet thickness to be …
The influence of skin pass rolling on tensile and microstructural properties of three industrial grade steels was investigated. Skin pass rolling was performed on a laboratory mill equipped with a device designed to reproduce the effects of sheet tension and with load cells aimed at measuring the main working parameters. Analysis on tensile …
Our solution for hot strip skin-passing is a mill in 4-high design – optionally with CVC® plus – complete with coil preparation station and pay-off reel on the entry side as well as one …
Skin-pass rolling (or temper rolling) is usually the final process in the production of cold-rolled steel sheets. One of the main objectives in skin-pass rolling is to obtain a certain surface roughness profile. When elongation is small, the effect of lubrication is not observed in elongation and roughness transfer.
The Clecim's solution range encompasses Skin-Pass Mills that cover all applications. With rolling force capacities ranging from 500 to 1,500 tons, Skin-Pass Mill stands can be of two-high or four-high design, thus …
in skin-pass rolling, these two parameters actually have the same value. e=(l1 – l0)/l0 (1) r=(t0 – t1)/t0 (2) Strip tension was also applied to samples during rolling to better reproduce the industrial skin pass process. The laboratory mill was thus modified in order to impart the desired reduction of section, • 10s-1
In-line Skin-Pass Mill for Continuous Annealing Line to produce HSS for automotive application. Technical Data: Strip Thickness: 0.30 ~ 2.6 mm. Strip Width : 800 mm～1,880 mm. Mill Type : 6-high UC-MILL. Our solution: The 6-high UC-MILL was installed to enhance the customer's product portfolio which now includes harder materials up to 1180 …
