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zhengzhou , chinaCharging slabs at an elevated temperature into the reheating furnace of the hot rolling mill will save energy. In addition hot charging improves material quality, reduces material losses, enhances productivity (by up to 6%), and may reduce slab stocking. The layout of the plant will affect the feasibility of hot charging because the caster and reheating furnace should be located in proximity
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In the wire rod mill RM2, which mainly focuses on hot charging, the average hot charging rate was kept for the third time on a constant level of 85 %. This corresponds to an average natural gas consumption of less than 200 kWh/t for both rolling mills at a total hot charging rate of 76 %
May 07, 2012 Direct hot charging of billet and billet hot charging of the slab into the furnace temperature is divided into two forms. (1) direct billet hot charge rolling, referred to as the CC-DHCR. Billet temperature is below A3, A1, above the slab directly sent to the furnace heating and rolling. Furnace in the casting and rolling mill to have a
hot rolling. Kneppe17) reviewed the progress and proposed tasks for the new century in hot rolling technology. Joseph 18) compared the process and equipment options for hot mill upgrades. This paper reviews and compares contemporary equip-ment and technologies for hot charging and direct rolling, and their effects on energy consumption, product
The Hot Rolling Process The primary function of the Hot Strip Mill is to reheat semi-finished steel slabs of steel nearly to their melting point, then roll them thinner and longer through 12 successive rolling mill stands driven by motors totaling 77,000 hp, and finally coiling up the lengthened steel sheet for transport to the next process
Originally a long steel products manufacturer, Isdemir plant started producing flat steel in 2008, with the acquisition of two continuous slab casters and a hot strip mill with a 3.5 million tons/year hot rolling capacity. In 2010, one year before Go-Live of the new Advanced Planning
Mar 18, 2014 manufacturing processes [5]. The hot charging system is a way to obtain optimum quality by optimum rolling temperature, optimum speed and tension and finally by optimum reduction [9]. The Fig.1 represents a common hot charging system for a steel rolling plant [8]. Fig.1 Hot charging system for steel plant [8] IV
At present, continuous casting hot charging and regenerative heating furnaces are widely used. (3) Controlled rolling and controlled cooling super steel technology. China’s “973” research project when producing high-strength (400Mpa) reinforced steel bars with low-cost materials. ... Foreign rolling mills, especially the bar and wire rod
hot rolling mills to heat the steel stock. To temperatures of around 1200 deg C which is suitable for plastic deformation of steel and hence for rolling in the mill. The heat source for a ... charging temperature of the steel stock may range from ambient temperature to 800 deg C. The target exit
Both rolling mills will be directly connected to the conticasters in order to operate in hot charging mode. The high-speed bar mill #2 is fitted with 16 housingless stands plus two, 4-pass high-speed twist-free finishing blocks and a QTB process for high-tensile deformed bars
Rolling Mill with Hot Charging Facility P a g e | 2 Nandan Steels and Power Limited Village-Sondra, Siltara Industrial Growth Centre, Raipur (CG) 1.4 Brief of Proposal The proposal is for an existing unit which was initially set up as a steel re-rolling mill to produce special steel rerolled structures for railways, in the year 2004
Feb 20, 2017 Hot charging promises significant cost savings as less energy is needed to reheat the slabs to the temperature required for hot rolling. ... When the
Apr 13, 2013 Reheating furnaces are used in hot rolling mills to heat the steel stock (Billets, blooms or slabs) to the rolling temperatures of around 1200 deg C which is suitable for plastic deformation of steel and hence for rolling in the mill. The heating process in a reheating furnace is a continuous process where the steel stock is charged at the
Welcome To Aman Machine Tools Private Limited. Incorporated in 1991, Aman Machine Tools is an ISO 9001:2000 certified company, engaged in production and supply of steel re-rolling plants in different types and capacities and E.O.T. Cranes. Besides this, we are also capable of manufacturing machinery and equipment for cement plants, tube mills
Compared with the traditional continuous casting-cold charging rolling (CC-CCR), charging slabs at an elevated temperature into the reheating furnace of the hot rolling mill is commonly considered to save energy, reduce CO 2 emission, improve material quality, reduce material losses, enhance productivity (by up to 6%), and reduce slab stocking. 7) Figure 1 shows the flow of equipment for hot charging and
minimised by loading the slabs at high temperature (= hot charging) and keeping the necessary reheating temperature as low as possible. The latter is done by reducing the heat loss in the line
Aug 06, 2019 The Advantages of the Hot Charging Process Used in a Hot Rolled Wire Rod Mill are as Follows: 1. Reduce the fuel consumption of the reheating furnace and increase the output of the reheating furnace. 2. Reduce heating time, and then reduce metal consumption. 3
Dec 03, 2015 The primary function of the conventional hot strip mill (HSM) is to reheat the semi-finished steel slabs (rolled or continuously cast) to the rolling temperatures and then to roll them thinner and longer through a series of rolling mill stands driven by large motors and finally coiling up the lengthened steel sheet for its easy handling and transport
In the hot charge technique for round rolling, the billets are delivered for hot rolling in the wire rod or bar mill after they exit the casting unit but before they lose all their heat [15]. In practical life it is very difficult to achieve rigid input and other boundary conditions [2]
continuous casting and the hot rolling mill to save billet and process heat by direct hot charging. The mini-steel plant is now considered as backbone in the industrial growth of any nation. Hot continuously cast steel billets can be directly hot rolled through a hot charging in mini-steel-rolling plant to form reinforcement bar products
Good Supplier Plant Price Aluminum Foil Cold Rolling Mill Product name Hot Rolling Mill Condition New Service Turnkey Project, Machinery Supply, Old Plant Modernization Final Product Yield 98% rolling type full/semi continuous rolling Raw material spec All size of continuous casting billets Billets supply way cold billets reheating and continuous casting billets hot-charging Final product spec
Jan 05, 2013 We offer Hot Rolling Mill at most affordable prices. Company Details Gongyi Hengxu Machinery Manufacture Co., Ltd. , Established in 2006 at Zhengzhou in Henan, is leading Exporter, Manufacturer, Trading Company of Rolling Mill Machinery in China
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