Roughing mill rolling of reheated slab The roughing mill usually consists of one or two roughing stands in which the slab is hot rolled back and forth 5 or 7 times repeatedly to reach the minimum thickness requirement Work roll chock mounted scratch brushes 122 Rough Rolling Before the rolling process begins the scale is removed
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Great energy conservation, wide adjustment range, low noise and little dust
1.5 times or even 2 times larger crushing cavity than that of other crushers, large feeding mouth
With features of reliable structure, high working efficiency and easy adjustment
VSI sand maker, also called VSI crusher, is the major machine for sand making plant.
Ball mill is the key machine to grind the crushed materials. Ball mill machine is widely used to process cement, silicate product, building material, refractory material, fertilizer, ceramics and glass, etc.
On the basis of domestic mills, fote raymond mill is produced. The raymond roller mill enjoys the features of high working efficiency, low energy consumption, small floor space and small cost.
Chrome deposit corporation provides expert bearing and chock inspection and maintenance services to keep your rolling mills online and productive our skilled technicians can conduct regularly scheduled preventive bearing and chock inspection investigate areas of concern or perform needed maintenance
The bearing chock is an important component to fixed bearing also called roll chock it is the core unit for the weightsupporting and rolling bearing it acts as a support in the bearing component bearing chock works continuously under the circumstance of low speed and heavy duty along with the impact so it is important to have a good quality guarantee for the components
Apr 01 2018nbsp018332dechockers support mill backup or work rolls on the od or at the neck of the roll bearing chock support stands are raised to support the roll chocks allowing removal of the retaining rings and bearing containment components once disassembled the bearing chocks are separated from the roll journals features operator safety is always 1
Keywords cold rolling mill work roll and backup roll chock mill housing 3d modeling 1 introduction rolling mill chocks are the maximum stressed bearing component in a manufactured item and so are most liable to consistent the financial losses incurred as a result of chock failure will be far greater than the actual value of the chock
Apr 06 2020nbsp018332mill hot strip mill work roll and back up roll chock bearing design improvements and value add features glunt industries was able to significantly lower the customers maintenance spend and improve production uptime by adopting a total cost of ownership philosophy to regularly maintain the assets identify innovative means to redesign chock components and introduce new
Jul 30 1997nbsp018332universal rolling mill stand 10 as in any claim hereinbefore in which said chock adjustment means 41 comprises a unit 61 for mechanical rough adjustment and a unit 62 for hydraulic fine adjustment these units 6162 being coaxial with the pressure screw 63
Roll chocks as well as roller bearing chocks and work roll chocks for many of the major metals producers globally we also build new chocks and chock components to oem and customer specifications our products and services help steel and aluminum producers bronze and brass mills achieve their quality and productivity goals and reduce
With and without chocks cold amp hot mill work intermediate and backup rolls 216 max 1800mm with and without chocks plate amp hot mill work rolls backup rolls 216 max 2400mm with and without chocks paper mill roll makers other special applications for all roll and mill sizes cnc roll grinders steel aluminium copper special alloys
Cylindrical roller bearings 5 axial bearings 6 tapered roller bearings 7 spherical roller bearings 9 axial tapered roller bearings for screwdown mechanisms 9 calculation of bearing load 10 selfaligning chocks 10 strip rolling 10 groove rolling 11 rigid chocks 12 calculation of roll deflection 13 calculation of load conditions and pressures 14
Reduced potential for roll neck damage due to spiral bore grooves with blended radii that provide lubricant access to the roll neck fewer components to handle due to advanced integrated design with no center spacers or seal carriers more effective exclusion of contaminants from the chock bore due to sealing at cup outer diameter
Roll crusher an overview sciencedirect topics figure 64 is a typical setup where ores crushed in primary and secondary crushers are further reduced in sie by a rough roll crusher in an open circuit followed by finer sie reduction in a closed circuit by a roll crushersuch circuits are chosen as the feed sie to standard roll crushers
Roll y is the plain strain yield strength of the strip and 0 is the viscosity of the lubricant at ambient pressure the pressure viscosity coefficient in the barus equation 0 expp is used to describe the variation of viscosity with pressure p in practice both the roll and the strip surfaces are rough in many rolling
Cherry wood edge tape ironon 2quot x 25 roll 2299 roll 3 ratings snapshot 4333 out of 5 would recommend this product cherry cutting board strips 1000 ea 2 ratings snapshot 5 out of 5 would recommend this product cherry turning squares 134quot x 134quot x 12quot 600 ea 3 ratings snapshot
Sms group inc expertly maintains and repairs rolling mill oil film bearing back up roll bur chocks as well as roller bearing bur chocks amp work roll wr chocks for many of the major steel producers globally as part of our fleet management process we provide turnkey maintenance solutions for entire rolling mill chock fleets
Aug 08 2019nbsp018332chock is the basic part of a rolling mill it is mounted in the window of the roll stand housing between the posts with a small clearness the roll stand housing encloses and supports the chock assembly the chock also prevents scale getting into the roll neck bearing
Product description the steel roughing rolling mill stand is used to reduce the thickness of the steel while at the same time extending the overall length steel roughing rolling mill stand is an important part of a work stand roll bearing chock and roller adjustment device is installed on the frame
Chocks for rolling mill application are small in capacity so the overall size of chock is very small and components are critical from manufacturing point of view as these chocks are fitted in a roiling mill it should have minimum noise and vibration
A rolling mill stand has upper and lower work rolls supported in chocks which include liner plates on their side faces for bearing against the side faces of the mill stand housing with the side
Roughing end mills are made from a variety of materials that are chosen according to the degree of precision hardness durability and wear resistance required by your application cobalt 2104
Precision bearing housings amp chocks we build new rolling mill chocks chock components and small bearing housings to oem and customer specifications to improve chock performance we also offer a chroming program that has been proven to extend housing bore life by as much as 400 more shear blades for hot amp cold applications
The problem of failure of rolling mill housing was there in industry which can be efficiently solved by using cae the present work involves the design optimization of work roll chock and backup roll chock in cold rolling mill to control the failure of choke in the cold rolling mill for retain the material cost and longer life of the roll chock
Xteks roll reconditioning and repair services extend into the specialty roll area as well periodic or routine maintenance programs on hot strip mill edger rolls and downcoiler pinch rolls are a part of the services conducted xtek these programs often include the machining of a passline profile or the regrinding of the body diameters
4hi mill backup rolls as a consequence the market is demanding a rolling mills revamp to mitigate roll neck breakage in the fillet ring area under severe loading conditions the choice of bearing selection can play an important and beneficial role in establishing a successful revamp
May 30 2013nbsp018332roll changing device this is a special device designed to attach to the neck of the roll to be removed or inserted into the rolling mills mill protection devices these are to ensure that the forces applied to the roll chocks are not of such a magnitude to fracture the roll
Mill head roller carrier gyratory crusher con crusher doosan imgb also supports the metallurgical industry through its products such as large mill housing and other rolling equipment with cast components for presses manufactured from various steel grades at the highest quality level and delivered as roughmachined or as ready to install
With the support of our experienced professionals we are offering exclusive quality rolling mill chock quality is our main concern for this we manufacture and exporter this mill chock using quality checked raw material and modern technology the chock provided by us is highly admired in the market for its tolerance capacity high efficiency
Pdf on jul 17 2014 santosh shelke and others published structural analysis of work roll chock and backup roll chock in cold rolling mill find read and cite all the research you need on
Find here roll chocks rolling chocks manufacturers suppliers amp exporters in india get contact details amp address of companies manufacturing and supplying roll chocks rolling chocks
Dec 13 2013nbsp018332work roll latches in the closed position the latches are connecting the work roll chocks with the cvcshifting cylinder in roll change the latches must be opened so that the work rolls wr can be removed from the mill stand the top and bottom latches are
Rolling mills can be achieved then in some cases cold rolling is not even required both sides of the mill stand the screws provide only a rough positioning without cylinders are used to apply a counteracting force on the work roll chocks to reduce the roll