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8156651 Centrifugally cast external layer for rolling roll and method for manufacture thereof  
A method for producing an outer layer for a roll having a structure having MC carbide dispersed at an area ratio of 20-60%, comprising the steps of (1) centrifugally casting a melt having a...
7766807 Roller structure and method for the manufacture thereof  
A core is provided with a coating formed by an agglomerate obtained by hardening of a mixture comprising a granulated stone material, preferably of the type having a high hardness factor and light...
7200935 Work roll  
Improved work roll, particularly for use in closed gap rolling, has a composite structure comprising a cylindrical outer layer (14) made of steel, and providing the work surface of the roll,...
6773383 Vibration damping roll  
A vibration damping roll is provided for rolling contact with a vibrating structure. The vibration damping roll incorporates a wave guide consisting of radially alternating rigid and flexible...
6685076 Roller for nipped applications and method of making roller  
A roller including an inner tubing and an outer tubing which is fixed relative to the inner tubing by welding the outer tubing to the inner tubing. The roller with weldments is particularly...
6513699 Process for the production of metal pipes  
A process for the production of metal pipes is described in which a thin-walled metal band inclined toward cold spots is gradually formed into a slotted pipe, the longitudinal edges lying flush...
6374494 Compound roll for thin cold rolled steel strip and method of manufacturing same  
The present invention provides a composite roll for cold rolling capable of rolling a cold-rolled steel strip having little edge drop, a cold-rolled stainless steel strip or a bright finish steel...
6110084 Combined roll having excellent resistance to thermal shock  
A combined roll is provided which offers excellent resistance to thermal shock. In this combined roll, an external ring portion is formed of a cemented carbide, and an internal ring portion is...
5839495 Method of manufacturing roll for hot rolling  
A roll outer layer material for hot rolling includes, as analyzed in weight percent, of 2.5-4.0% C, 6.0-20% Cr, 3.0-10.0% V, 0.6-5.0% Nb, 2.0-15% Mo, 3.0% or below Si, 3.0% or below Mn, C, V, Nb...
5823926 Caster roll core and shell assembly and method of manufacturing the same  
An improved caster roll core and shell assembly includes two overlays of stainless steel of different hardness which are deposited on the surface of the roll core, thus prolonging the life of the...
5674171 Roll outer layer material for hot rolling and method of manufacturing roll for hot rolling  
A roll outer layer material for hot rolling consists essentially, as analyzed in weight percent, of 2.5-4.0% C, 6.0-20% Cr, 3.0-10.0% V, 0.6-5.0% Nb, 2.0-15% Mo, 3.0% or below Si, 3.0% or below Mn,...
5419973 Composite roll for rolling and process for producing the same  
A composite roll for hot rolling wherein the outer layer portion of a composite roll comprises a steel comprised of, in terms of % by weight, 1.5 to 2.4% of C, 3 to 6% of V and 10 to 20% of at...
5380264 Roller for use in molten metal bath  
A molten metal plating apparatus includes a roller rotatably supported by a bearing in a molten metal bath, the roller having a shaft sliding portion, the bearing having a sliding portion, both the...
5167067 Method of making a roll with a composite roll ring of cemented carbide and cast iron  
The present invention discloses a roll for hot and/or cold rolling. The rolling track comprises one or several cemented carbide rings, which are cast into a casing made by an iron alloy. The cast...
5154074 Roll with width adjusting function  
A rolling apparatus having a width adjustment function includes a horizontal sleeve roll divided into two rolls in the axial direction and shrink-fitted over an arbor. Internal threads are formed...
5104458 Method for manufacture of a roll ring comprising cemented carbide and cast iron  
The present invention discloses a roll ring for hot and/or cold rolling. The rolling track comprises one or several cemented carbide rings, which are cast into a casing made by an iron alloy. The...
5081760 Work roll for metal rolling  
A compound roll for a metal rolling mill having both excellent resistance to a thermal shock crack and excellent wear resistance includes a core shaft made of low alloy steel and an outer layer...
5053284 Wear-resistant compound roll  
A wear-resistant compound roll having a shell portion produced by sintering a uniform mixture of alloy powder consisting essentially, by weight, of 1.2-3.5% of C, 2% or less of Si, 2% or less of...
5044056 Roll ring comprising a ring of cemented carbide metallurgically bonded to a cast iron body  
A roll ring for hot and/or cold rolling. The rolling track comprises one or several cemented carbide rings, which are cast into a casing made by an iron alloy. The cast alloy comprises a materially...
5040398 Ceramic sleeve incorporated rolling roll  
A rolling roll comprises a metal rolling roll body, a ceramic sleeve into which the roll body is inserted with a gap therebetween, thereby providing a working surface of ceramics at an outer...
4958422 Wear-resistant compound roll  
A wear-resistant compound roll comprising an outer layer made of an iron-base alloy containing such components as to precipitate at least one of carbides of W, V, Nb, Ti, Ta, Zr and Hf from an...
4941251 Rollers for rolling mills  
A roller for rolling mill comprising an entirely non-metallic sintered body composed principally of at least one material selected from silicon carbide, silicon nitride, sialon, alumina and...
4924688 Mill roll  
A mill roll with a ceramic working surface comprises an annular ceramic formation sleeved upon a hub. In preferred embodiments the ceramic formation is clamped to the hub at angled edge walls so...
4912835 Cermet sprayed coating roll with selected porosity and surface roughness  
A roll for use in rolling process is disclosed. The roll is provided with a sprayed coating of cermet in such a way that a porosity of the sprayed coating of for example a compound of tungsten...
4909059 Metal tubing bender  
A metal tubing bender forms arcs into metal tubing by engaging a swing-arm mounted roller against a clamped tubing section and rotating the roller through an arc necessary to place the desired...
4876875 Supported ceramic guide roller  
A supported ceramic roller and a method for production and use thereof is provided, particularly as a guide roller in a non-ferrous rolling mill. A ceramic roller member is attached to a backing...
4866968 High strength cemented carbide dies and mandrels for a pilgering machine  
Pilger tooling for use in a pilgering machine includes an elongated stationary mandrel for supporting a tube thereon in position for cold reduction, and a pair of roller dies positioned along...
4819471 Pilger die for tubing production  
A pilgering die for use in cold forming of tubular members is in the shape of a ring member having a groove in the outer periphery thereof and a bore therethrough, the die composed of at least two...
4802528 Hoops for continuous casting rolls  
The invention relates to hoops for rollers for the continuous casting of aluminium, characterized in that they are in the form of forged cylindrical casings which have undergone heat treatment and...
4793042 Rolling mill roll assembly  
A rolling mill roll assembly comprising an inner cylindrical mandrel and an outer cylindrical sleeve bonded thereto with glue containing grit particles. Wire is spirally wound around the outside of...
4777822 Method of hot rolling copper  
The present invention relates to a method of hot rolling copper or copper alloys such as copper wires and coppr plates. The present invention has succeeded in remarkably prolonging useful life of...
4771524 Roll having a hard envelope surface  
To increase abrasion resistance, a cast-iron roll is given a carbidic running-surface layer which has a defined depth of at least 1 mm and a fine-grained structure whose cementite dendrites have a...
4756180 Method of hot rolling for iron and iron alloy rods  
A novel method of hot rolling iron and iron alloy rods, using a hot rolling tool comprising β-Si3 N4 and a sintering aid selected from the group consisting of Al2 O3, AlN, MgO, Y2 O3 and ZrO2, and ...
4726417 Adamite compound roll  
A compound roll for rolling composed of a shell made of adamite having a carbon content of 1.4-2.5 weight % and a core made of forged or cast steel, the shell being metallurgically bonded to the...
4698884 Roll for hot forming steel rod  
Disclosed herein is a carbide roll having an improved composition for hot forming steel rod in multi-stand rolling mills. The improved composition comprises the addition of nickel as a binder...
4697320 Roll for a rolling mill, method of producing the same and the rolling mill incorporating the roll  
A method of producing a long-life roll for a rolling mill manufacturing a rolled sheet having brightness. At least the surface of the roll barrel is made of steel containing carbide, the average...
4674312 Pilgering apparatus  
Pilgering apparatus for reducing a tube particularly of zirconium alloy. The reduction is effected by grooved annular dies. Each die has a recess in its bore extending between the surfaces on which...
4609577 Method of producing weld overlay of austenitic stainless steel  
A method of producing a weld overlay on a ferrous base metal surface, by applying to the surface by electric arc welding a plurality of layers of an austenitic stainless steel filler of specific...
4548653 Cast cold rolling roll and its method of manufacture  
The composite bimetallic roll for cold rolling obtained by casting comprises a heart metal constituted by a nodular or lamellar cast iron and a case metal constituted by a steel having a chromium...
4546527 Composite sleeve for use in rolling rolls for H-section steel and channel steel  
A composite sleeve for use in a hot-rolling roll for H-section steel and channel steel comprises a working layer adapted to contact the material to be rolled and composed of two layers, i.e., a...
4507366 Rolling mill roll for a hot train of rolls  
The object of the invention is to improve the performance of the rolls of roughing and finishing stands of a hot strip train or mill and in particular to retard as far as possible the banding...
4484959 Process for the production of a composite metal part and products thus obtained  
The present invention relates to the production of metal parts whose core and surface must have different characteristics.Its subject comprises firstly a process for the production of a composite...
4436791 Cast cold rolling roll  
The composite bimetallic roll for cold rolling obtained by casting comprises a heart metal constituted by a nodular or lamellar cast iron and a case metal constituted by a steel having a chromium...
4433032 High chrome work roll  
In a high chrome work roll, between the outer layer of a cast iron containing 10.about.25 weight % Cr and the core of a ductile cast iron containing less than 1.5 weight % Cr, an intermediary layer...
4193823 Rolls for hot-rolling non-ferrous metals and method of making  
A method of and apparatus for hot-rolling non-ferrous metal bar in a plural stage rolling mill are disclosed. Each stage of the rolling mill is provided with a plurality of work rolls which have a...
4165407 Adamite roll material for a rolling mill  
Roll material which contains vanadium or similar elements able to form fine and evenly dispersed carbides which contribute to wear-resistance and in which network cementite produced is in a form...
4112564 Method of making a composite roller  
The composite roller of the invention comprises a ring of near-resistant material encircling a holding member which latter has an inner portion and two radial flanges between which said ring is...
4056873 Composite guide roller for a rolling mill  
The invention relates to a guide roller for hot-rolling mills for long metallurgical products and to the method by which it is made. The roller consists of a hollow core and an annular ring mounted...
4000010 Roll and process for producing same  
A roll and process for producing same are disclosed. This process includes the steps of: horizontally placing a core body made of a cast steel or a steel based Adamite containing from 0.5 to 2.5...
3974555 Rolls for rolling mills and method for making same  
Disclosed are improved rolls for use in elevated temperature rolling operations and a method for making said rolls. At least a portion of said rolls comprises a coated surface, said coating...
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