Hot mills generally need more cooling and it is an advantage to have exit sprays as well as entry sprays. However, the exit sprays have more effect because the roll surface temperature is higher on the exit side. As a rule of thumb, the exit side cooling
Because of the current demands on mills to process much lighter exit gauges from increased incoming hot strip thickness, much larger reductions are necessary on individual mill stands, such high reductions at a nominal width result in a larger area of contact with corresponding higher rolling force, friction and heat generation (see Fig 1
Hot Strip Mill, Panzhihua Iron and Steel (Group) Co, Panzhihua 617062, Sichuan, China] Main cooling velocity section F6 Abstract: The structure of laminar cooling control system for hot rolling was introduced and the control mode, cooling strategy, segment tracking and …
Dunkirk hot strip mill. This modernization measure ensures the operational reliability of the drive train, prepares the mill for a future extension and reduces mill maintenance. The rougher R5 is the last of four non-reversing stands in the five-stand roughing mill …
Inter Stand Cooling possibilities were determined by measurements and mathematical simulations in three different hot strip mills (2000 mm). The scheme of finishing mill with the cooling headers is shown in Figure 4. The ultimate possible temperature drop due to interstand cooling varies from 80°C - 65°C for the thick strip
white paperSuccessful Execution of Roll Cooling Strategies rev3. In today's hot rolling mill, realizing the promised longevity of high speed steel rolls depends on one's ability to develop successful roll cooling strategies that successfully manage heat transfer issues. Moreover, effective cooling in both hot and cold rolling mills. Get Price
type of pyrometer to measure the strip temperature stably during cooling on the hot run ta-ble of a hot strip mill and a control process for precise cooling of the strips using the pyrom-eter. The new strip cooling process was developed and put into commercial practice at Kashima Works and is being expanded to other mills of the company.
Spray impingement cooling is the major method currently used to cool steel after the hot-rolling process. In this study, dual nozzles are used to investigate the cooling character of the flat ...
AGC, edger, finishing mill, hot strip mill, Laminar cooling, rolling speed, scale breaker, slab. roughing mill, tension, Rolling of steel in Hot Strip Mill. Hot strip mills in these days are either conventional hot strip mills or strip mills for rolling thin slabs. The …
CSI's Hot Strip Mill includes six finishing mills, which reduce the thickness of the transfer bar down to the gauge required by the customer or the next process. The rolling speed is set to allow the last stand to perform the final reduction at the finishing temperature, between 1500° to 1650°F, specified to reach certain mechanical properties.
Primetals Technologies has received an order from SSAB Europe Oy to modernize the cooling section automation in the hot rolling mill in its steel plant in Raahe, Finland. The scope of supply includes the the process automation (level 2) hardware …
Temperature Monitoring. Temperature Control in Hot Rolling Mills. Hot Rolling Mills are used to reheat shapes of steel to soften them enough so that they can be rolled …
the initial cooling rate, achieving and maintaining target temperature at an intermediate location, and providing air cooling time for interrupted cooling. Fig. 2. Multiple CTC targets In addition coiling temperature can be specified as variable target alongside the length of the strip, e.g. catenary curve or "U" shap ed temperature profile.
Furthermore, when combined with in-line accelerated cooling, hot leveling and a shearing line, the Steckel process makes it possible to produce large quantities of discrete plates economically, achieving the tight geometrical tolerances and high yield typical of hot …
Report on Best Available Techniques (BAT) in the German Ferrous Metals Processing Industry FINAL DRAFT Deutsch-Französisches Institut für Umweltforschung (DFIU)
Hot strip mill cooling system . United States Patent 4899547 . Abstract: An apparatus and method for cooling a strip of moving metal in a hot strip mill, or the like, is disclosed. The apparatus utilizes an infrared sensor for measuring a temperature profile across a transverse section of the strip. A coolant manifold is utilized to apply ...
Alibaba offers 24 Hot Roll Mill Cooling Bed Suppliers, and Hot Roll Mill Cooling Bed Manufacturers, Distributors, Factories, Companies. There are 16 OEM, 16 ODM, 1 Self Patent. Find high quality Hot Roll Mill Cooling Bed Suppliers on Alibaba.
considered boundary conditions are based on real measured data from hot rolling mills. The results of the performed analyses are focused on the description of the assessing methodology of the work rolls cooling on the stresses, deformations and service life of the rolls. INTroduCTIoN Work roll surfaces for hot strip rolling suffer from consi-
Cooling Efficiency vs Surface Temperature Using final node temperatures at the end of the zone time step, a revised average piece temperature is calculated to determine the amount of components for steel phase transformation. 7.2 Latent Heat Transfer Calculations In a conventional Hot Strip Mill a temperature span on ROT covers the range where ...
The Steckel Mill occupies a special niche in hot flat rolling, operating at a lower economic volume than tandem hot strip mills but capable of greater widths and especially suitable for particular alloys, including stainless steels. Its metallurgical and process control complexity is comparable to the Plate Mill, and its design, operation and ...
The Hot Strip Mill represents the most productive solution for flat rolled products. It provides the highest level of productivity together with a large product mix and outstanding quality. Yearly productivity of Hot Strip Mills can vary from 2 to 6 Mtpy, depending on the configuration that is selected.
Cooling beds are crucial to the steel manufacturing process, carefully moving and cooling the hot steel after the rolling process. As this is an integral part of a Steel Mill's manufacturing process, any mechanical problems or failures to the cooling bed will …
You are guaranteed to benefit from SMS groups long-standing technological expertise in hot rolling processes for the aluminum industry. Out of this comes highly developed technology, automation and service packages that feature custom-designed solutions for all your wants and needs.
Strip cooling is an important metallurgical process in hot strip mills. That's why SMS group systems come with high cooling rates, flexible cooling strategies, and a powerful cooling model. To achieve a wide range of cooling rates, SMS group established different strip …
hot rolling mill cooling bed manufacturer/supplier, China hot rolling mill cooling bed manufacturer & factory list, find qualified Chinese hot rolling mill cooling bed manufacturers, suppliers, factories, exporters & wholesalers quickly on Made-in-China.
cooling water, but the temperature is also increased during deformation. Cooling on the run out table is also not a continuous action. Therefore neither an isothermal nor continuous TTT-diagrams are able to describe exactly the transformation during rolling and cooling in a hot strip mill.
Hot rolling mill cooling bed Description: Cooling bed is an important equipment in the field of steel rolling. It used to receiving, transmissing and cooling the rolled piece. After sizing or reducing, the temperature of pipe is generally above 700 °C. It must be cooled to below 150 °C for subsequent finishing process.
We propose a new method for finishing mill delivery temperature control (FDTC) of a hot strip mill using inter stand strip coolant (ISC). FDTC consists of initial setting (before threading) values ...
Hot strip cooling temperature and its cooling rate is get by strip cooling system and coiling temperature of hot rolled strip is an important parameter on its performance index. It presents laminar cooling system of the 700 mm hot strip mill and the mill rolling …