CA2480674C CA002480674A CA2480674A CA2480674C CA 2480674 C CA2480674 C CA 2480674C CA 002480674 A CA002480674 A CA 002480674A CA 2480674 A …

A method of measuring a roll diameter of a roll is provided. At first, a step-shaped conical master roll consisting of a plurality of diametrical parts is prepared and then, the diameters of the diametrical parts under predetermined standard temperature are measured.

Grinding of mill rolls is carried out with chatter resistant abrasive grinding wheels having relatively low elastic modulus values and relatively high burst speed values. Grinding operations may be carried out at high efficiency with controlled wheel vibration, thus generating optimum …

B — PERFORMING OPERATIONS; TRANSPORTING; B24 — GRINDING; POLISHING; B24B — MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SU

METHOD OF ROLL GRINDING . European Patent EP1494834 . Kind Code: B1 . Abstract: Bonded abrasive tools, having novel porous structures that are permeable to fluid flow, comprise a relatively low volume percentage of abrasive grain and bond, and a relatively low hardness grade, but are characterized by excellent mechanical strength and grinding ...

Consistent grinding and balancing of rolls is necessary for efficient operation and optimum paper quality. As an integral part of a modern roll maintenance program, roll grinding and balancing uses machinery with accurate inspection and measurement equipment. This paper provides practical tips on roll inspections, balancing, grinding and grooving.

SUBSTANCE: grinding wheels resistant against vibration and having up to 54 vol. % of porosity, maximum density after curing 2.0 g/cm 3, comparatively high values of breaking speed and relatively small values of elasticity modulus are used for grinding rolling rolls while providing mutual motion of grinding wheel and rolling roll.

Method Of Roll Grinding. FOB Reference Price:Get Latest Price The moveable roll is forced up against the material by a hydraulic oil cylinder system. Depending on the manufacturer this oil pressure transmits either through two or four pistons the grinding force over the crosssection of the diameter of the rolls where the bed of particles is formed.

METHOD OF ROLL GRINDING . European Patent EP1494834 . Kind Code: B1 . Abstract: Bonded abrasive tools, having novel porous structures that are permeable to fluid flow, comprise a relatively low volume percentage of abrasive grain and bond, and a relatively low hardness grade, but are characterized by excellent mechanical strength and grinding ...

A method according to claim 1 in which the belt contact surface for the inside of the belt is a rotating roll. 5. A method according to claim 4 in which the belt wrap around said workpiece is after it leaves the rotating roll. ... This invention relates to a method of grinding non-uniform workpieces and more particular to belt grinding of such ...

The grinding wheel consists essentially of a superabrasive material selected from the group of natural diamond, synthetic diamond, cubic boron nitride, and mixtures thereof, in a bond system, for a grinding wheel with extended wheel life, and which removes minimum amount of stock off the roll to achieve desired roll geometry.

The method relates to the grinding surfaces and is intended for the manufacture of the roll centerless superfinishing machine. Roller device, being one of the most difficult parts centerless superfinishing machine, provides hosting, circular and longitudinal feed …

1. Introduction. Compared to the more traditional crushing and grinding technologies, many of which in use for more than a century, High Pressure Grinding Rolls (HPGR) may be regarded as a recent development, given its patent from the 1980s by Professor Klaus Schönert (Schönert, 1988).Since their introduction, HPGRs have been widely used in cement industry which still has the majority of the ...

[0003] Roll grinding is a cylindrical grinding process wherein a bonded abrasive wheel grinds and smoothes the surface of a mill roll. A mill roll is a large (e.g., 7 feet in length, 2 feet in diameter) metal roller, typically made of forged steel, designed for use in …

Grinding roll and method and device for processing a grinding roll. tmClass. Tools for the aforesaid goods, in particular cutting-off, grinding, polishing and glazing wheels, grinding, polishing and glazing rolls, grinding, polishing and glazing belts. Common crawl.

Grinding roller that is regenerated by the method of agreement is but the invention (in contrast to the grinding roll according to DE 196 18 143 A1), not used in mode grinding until then, until you wear out completely and/or does not fall out of body roll and a …

Such a complicated situation was very suitable for applying the Taguchi experimental design method to optimize roll grinding process parameters. In this work, the grain size was #36, #46 and #60. The workpiece speed was 160, 200 and 300 r/min. The depth of grinding was 0.01, 0.02 and 0.03 mm. The wheel speed (1760 r/min) was maintained. ...

roll or slide across the cloth and specimen. A book edited by Marinescu et ... and polishing methods. Automatic Grinding The pressure, time, and starting abrasive size depend on the number of mounts being ground, the abrasion resistance of the ceramic, the amount CHAPTER 4 04_Ceramography_ASM 10/11/02 1:23 PM Page 35

Grinding path optimization for a roll grinding machine Abstract: In the steel industry the roll grinding machine has become important for maintenance. The rolls always have surface or shape errors after plastically deforming steel slabs to the steel plate.

The Pacer Method of . Paper Mill - Roll Grinding - a system approach to easier grinding and better finishes - This is a summary of the Pacer four page "Operating Instructions" booklet for roll grinding wheels. These recommendations are for PM or cork wheel use mainly on chilled iron. For more details, refer to the Operating Instructions booklet.

A method of grinding a ferrous roll may include: rotating a grinding wheel on a machine spindle to form a rotating grinding wheel; rotating a ferrous roll to form a rotating roll surface; bringing the rotating grinding wheel into contact with the rotating roll surface; traversing the rotating grinding wheel across an axial roll length of the rotating roll surface; and grinding the roll surface ...

Method of roll grinding . Dec 24, 2002 - Saint-Gobain Abrasives Technology Company. Grinding of mill rolls is carried out with chatter resistant abrasive grinding wheels having relatively low elastic modulus values and relatively high burst speed values. Grinding operations may be carried out at high efficiency with controlled wheel vibration ...

The high grinding capacity, less maintenance cost and ease of operations also makes the hammer mill a preferred grinding method. In addition, in feed manufacturing, the hammer mill is highly suitable for grinding fibrous materials such as hulls (oat, barley, wheat bran) compared to the roller mill and multicracker system.

The roll grinding process can be accomplished using multiple passes with fast traverse across the roll (traverse grinding) or in a single pass with large depth of cut using slow traverse rates (creep-feed grinding). Substantial reduction in cycle time can be obtained by using creep-feed grinding method for roll grinding.

A new predictive 3D grinding method has been developed to improve roll behaviour in the paper production environment. It consists of a measuring system, which can verify the rotational and geometry errors of the roll at running speed, and a 3D grinding system, which controls the grinding process according to the information gained by these

Thread rolling is the preferred method for producing strong, smooth, precise, and uniform external thread forms. Outsourced thread rolling processes are often more efficient than producing threads by cutting or grinding, especially on parts made from difficult metals.

CN1652897B CN038109646A CN03810964A CN1652897B CN 1652897 B CN1652897 B CN 1652897B CN 038109646 A CN038109646 A CN 038109646A CN 03810964 A CN03810964 A CN 03810964A ...

The web must be "in traction" with all machine idler rolls and driven rolls to ensure proper web handling and control. • The web handling principal states a web will seek to align itself perpendicular to an idler or driven roll. This web handling principal is applied to route webs through processes with parallel idler rolls and driven rolls.

1. A method of grinding a ferrous roll having a rotating roll surface with a rotating grinding wheel, the ferrous roll having a hardness greater than 65 SHC and a minimum diameter of at leas 254 mm (10 inches) and a length of at least 609.6 mm (2 feet) the method comprising: a) mounting a grinding wheel on a machine spindle and setting the angle between the grinding wheel rotational axis and ...