- 0086-21-58386256
- من الإثنين إلى السبت: 10:00 - 16:00 / يوم الأحد مغلق
Roll Cooling Design Design guidelines Large spray coverage on rolls and space spray bars around circumference Cool exit side unless carryover is an issue Position spray bars not too close to roll and aim near perpendicular to roll (sensitivity to roll diameter)
أكمل القراءةThe zoning of- the selective cooling nozzles is in conjunction with the shape measuring roll on the mill exit side. The relevant nozzles in the top and bottom header of the same zone are operated simultaneously, so that both top and bottom roll share the same reaction.
أكمل القراءةWhen the roll diameter reduces to less than the minimum diameter required by the mill stand after turning down, then the roll is to be discarded. Stand and roll guide set-up. The goal of mill and the roll guide setup is to get the first bar rolled when changing product, on the cooling bed within the tolerance so that it is a saleable product.
أكمل القراءةThe adjusting the intermediate rolls on a six high mill is an adjustment of mechanical crown. A simple roll coolant system is then used to satisfy the lubrication and cooling requirements. Recently, the concept has been further developed with intermediate rolls taking on "coke" bottle shapes.
أكمل القراءةrolling mill, dedicated roll cooling systems are required to fulfill the required functions. Examples are suitable roll cooling and lubricationsystems to fully utilize the advantages of HSS rolls in hot strip mills, and selective roll cooling systems as a method to control the flatness of the strip in cold rolling mills.
أكمل القراءةThe dimple jacket design as tank cooling jacket allows the temperature control of products during other process steps. This saves a separate thermal process stage and often increases productivity and product quality. Manufactured tanks out of laser-welded dimple jackets have also less weight, above all, because of less stainless steel material.
أكمل القراءةThe mill reservoir should be placed close to the mill and use larger-diameter pipe over shorter distances to provide the least change in coolant pressure from the pump to the mill. A rule of thumb with plumbing is to maintain the largest required plumbing diameter as long as possible when carrying coolant to the mill because any reduction in ...
أكمل القراءةUnited States Controls, Inc. (USC) manufactures high quality, reliable roll cooling and roll heating systems for the aluminum, steel and brass rolling industries.Patented USC roll cooling and heating systems have been installed on over 163 mill stands in aluminum, brass and steel rolling mills since 1984.
أكمل القراءةFabris Guiding Systems for rod and bar mills, including two, three and four roller entry guides, twisters, antiflutter 6-in. and 8-in., slitters, entry and delivery dummy pipe holders, delivery guides, friction guides, rest bars, flingers, sleeves, mill components, spares, and Fabris carbide roll cooling systems; patents for "DR" roller guide, sleeveless roll mounting system, and sizing …
أكمل القراءةdesign of mill roll cooling jacket; Roll Cooling Lechler. 01/12/2016 For a higher product quality and productivity of a rolling mill, the roll cooling systems are crucial when it comes to process modifications. Lechler here supports you with thermal studies. Technical data (pdf, 189.70 KB) Professional reports.
أكمل القراءةIn summary, in most mills the primary surface to target is the work roll. Which side of the mill should one be cooling? The determination of which side of the mill to cool depends upon the overall mill design and cooling strategy. In the typical hot mill, cooling is generally done on both sides for several reasons.
أكمل القراءةFor the most demanding applications! With more than 250 installations worldwide, United States Controls is the leader in the design and manufacture of selective spray bar cooling systems for rolling mills. Unlike other spray bar manufacturers, USC's innovative modular design and self-cleaning valve technology offer mill operators improved ...
أكمل القراءةThe main purpose of this section is to give all operation personnel a basic understanding of :• The engine most essential functions.• How the Jacket Cooling ...
أكمل القراءةTo minimize roll wear, roll cooling water must be applied as close to the point where the rolling stock leaves the roll. Typical pressures of cooling water are 2 kg/sq cm to 5 kg/sq cm at a flow ...
أكمل القراءةCold pipe insulation will prevent the condensation that causes these problems. Easily Removable for Servicing. Thermaxx Jackets are made to be easily removed and to replace, ensuring your energy efficiency will not get in the way of regular maintenance. Our quality jackets are made with a hook and loop straps, or 1 inch buckles and D-rings.
أكمل القراءةThe jacket structure is a design commonly applied by the oil and gas industry for supporting rigs offshore, at water depths much greater than 100 m. A jacket is made up of four legs of more than 1 m diameter connected to each other with bracings (Figure 24).It also consists of a working platform, corrosion protection system, cables, and ladders. After a thorough preparation of the …
أكمل القراءةThe cooling of work rolls is an important process in the hot rolling technology and cannot be taken as a marginal issue. The Heat Transfer and Fluid Flow Laboratory designs cooling of rolls to reach their long working life while rolled product is still well heat treated.
أكمل القراءة· Roll pass design in continuous bar mills 1 African Foundries Ltd Lagos Nigeria Presented by Rahul Kishore 2 Basics of Rolling A rolling mill consist of several at least two rolls cylindrical or nearly cylindrical bodies which are termed as roll and which rest in bearings at their ends The normal and average center distance from the center of one roll to the center of o
أكمل القراءة