US3913851A - Wear resistant lining for grinding mills - Google Patents

Wear resistant lining for grinding mills Download PDF

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Publication number
US3913851A
US3913851A US441416A US44141674A US3913851A US 3913851 A US3913851 A US 3913851A US 441416 A US441416 A US 441416A US 44141674 A US44141674 A US 44141674A US 3913851 A US3913851 A US 3913851A
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United States
Prior art keywords
layer
lining
sheet
lining according
dimensions
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Expired - Lifetime
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US441416A
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English (en)
Inventor
Sven E Andersson
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Trelleborg Rubber Co Inc
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Trelleborg Rubber Co Inc
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Application filed by Trelleborg Rubber Co Inc filed Critical Trelleborg Rubber Co Inc
Priority to US441416A priority Critical patent/US3913851A/en
Publication of USB441416I5 publication Critical patent/USB441416I5/en
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Publication of US3913851A publication Critical patent/US3913851A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
    • B02C17/18—Details
    • B02C17/22—Lining for containers
    • B02C17/225—Lining for containers using rubber or elastomeric material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S241/00—Solid material comminution or disintegration
    • Y10S241/30—Rubber elements in mills

Definitions

  • Rotary mills are well known apparatus used, for example, in mixing and/or pulverizing various types of materials.
  • Such mills commonly include a metal shell or drum at least a portion of which is cylindrical and which is supportable for rotation about the longitudinal axis thereof.
  • Metal balls, or the like are placed in the drum together with the material to be treated, and rotation of the drum results in the desired grinding or mixing of the material.
  • highly abrasive materials such as metal ores are conveyed from one location to another by gravity flow along a conveyor chute having bottom and side surfaces to guide material movement.
  • Such chute walls are generally produced from metal plates such as steel.
  • the drum or chute is provided with a protective wear resistant lining of an elastomeric material, such as natural or synthetic rubber.
  • a protective wear resistant lining of an elastomeric material such as natural or synthetic rubber.
  • Such linings are generally defined by strips or segments of lining material ranging from about 1% inch to 2 inches in thickness and in hardness from about 40 to 80 on the Shore A scale.
  • a major disadvantage with regard to linings presently available for mills and chutes resides in the manner in which the linings are mounted on the device.
  • Certain linings heretofore provided have been mounted by the use of bolt arrangements in which the head of a bolt is embedded in the lining material or is disposed in a slot provided therein, the shanks of the bolts projecting through corresponding openings in a wall of the device so as to receive nuts.
  • Mounting arrangements of this nature involve steps in the production of the lining which add to the production cost and, moreover, assembly and maintenance time is increased as a result of having to manipulate mechanical fasteners. Further, such fasteners can come loose during use of the device and the resulting looseness of the lining can lead to increased wear, or damage to the lining.
  • the compressive forces enhance buckling of the lining inwardly of the drum, and over compression resulting from the lining being too large in diameter would increase the likihood of buckling, such as by the tensional stress placed on the lining material as mentioned above. If, on the other hand, the lining diameter is too small, slippage is apt to occur between the lining and drum which, if too great, could affect the tumbling desired with respect to the material being treated.
  • a grinding mill or chute liner is provided with a mounting arrangement by which the foregoing disadvantages, and others, of mounting arrangements heretofore known are advantageously avoided. More particularly, in accordance with the present invention, a mill or chute lining is removably retained in place by magnetic attraction.
  • the magnetic attraction capability can be achieved in any number of ways and, preferably, is achieved through the use of a sheet or strips of flexible permanent magnet material suitably attached to the mounting face of the lining material.
  • the lining may be provided in a continuous strip, or by several strips or segments disposed in side-by-side relationship.
  • the lining is readily mountable and/or removable from a drum or chute and, when mounted, is interengaged with the device against slip page relative thereto during use of the device, and without the necessity of separate fasteners, such as bolts or the like.
  • the desired magnetic attraction of the lining to the drum is achieved through the use of thin permanent magnet material of the character including a body of non-magnetic material having permanent magnet particles therein.
  • permanent magnet material is per se well known and includes, for example, a body of rubber, or plastic such as nylon, having particles of a magnetic material, such as barium ferrite embedded therein.
  • the material is generally produced in sheet form following which the particles are magnetized to impart desired magnetic properties to the sheet material.
  • Magnetization may be achieved in a number of different ways. For example, magnetization may provide for opposite surfaces of the sheet material to be of opposite polarity, or for adjacent areas across a face of the sheet to be of alternately opposite polarity.
  • a sheet of such permanent magnet material coextensive in area with a mounting face of a strip of lining material, is bonded or vulcanized to the mounting surface of the lining strip.
  • the lining strip may be a continuous strip coextensive with the support surface of the device or may be one of a plurality of strip segments disposed in side-by-side or end-to-end relationship. In either event, it will be appreciated that the permanent magnet material is attracted to the support surface to hold the lining strip or strips in place with respect thereto.
  • the mounting surface of the lining material is provided with such permanent magnet material in discrete areas of the mounting surface. For example, narrow elongated strips of the magnet material can be bonded or vulcanized to the mounting face in generally parallel spaced apart relationship with respect to one another.
  • a thin metal plate of magnetic material such as steel, is attached, such as by vulcanization. to the mounting face of the liner material, and the flexible permanent magnet material is mounted on the metal plate.
  • the metal plate serves to reduce the reluctance in the magnet circuit by reducing the air gap adjacent the surface of the permanent magnet material facing the mounting surface of the liner material. By reducing the reluctance in this manner, the flux in the magnetic circuit is increased to increase the holding power of magnetic attraction between the magnet material and the liner supporting surface of the device.
  • the metal sheet can be either flexible or rigid.
  • the sheet may be sufficiently flexible to enable production of the lining in the form of an elongated strip adapted to be formed into an annular configuration for introduction into a mill drum.
  • the inherent resiliency of the lining material and the metal sheet would tend to return the lining to its initial straight contour, thus increasing the retention capabilities of the lining with respect to the inner surface of the drum.
  • the metal plate could be substantially rigid or produced to have a predetermined curvature such as where a mill lining is defined by circumferentially adjacent lining segments, each of which would have a curvature corresponding to that of the inner surface of the drum.
  • the pre-formed metal plate would, of course, serve to maintain the desired curvature for the corresponding segment of the lining.
  • Another object is the provision of a lining of the foregoing character which is retained in place with respect to the surface to be protected against slippage and/or displacement relative to the surface without the use of fastening components mechanically interengaging the lining and drum.
  • Yet another object is the provision of a lining of the foregoing character which minimizes the time required to mount or remove the lining or a portion thereof with respect to a support surface for the lining.
  • Still another object is the provision of a lining of the foregoing character which is structurally simple and economical to produce, and which is readily assembled and disassembled with respect to a mill drum, whereby the costs of production and maintenance are minimized, and maintenance time is minimized to decrease down time of a given grinding mill.
  • FIG. 1 is a pictorial view of a cylindrical grinding mill drum provided with a lining made in accordance with the present invention
  • FIG. 2 is a sectional elevation view ofa portion of the drum and lining illustrated in FIG. 1, the section being along line 2-2 in FIG. 1',
  • FIG. 3 is a sectional elevation iew similar to FIG. 2 and illustrating a modification of the liner construction in accordance with the present invention
  • FIG. 4 is a perspective view of a further embodiment of a mill lining in accordance with the present invention.
  • FIG. 5 is a perspective view of a grinding mill lining segment structure in accordance with the present invention.
  • FIG. 1 A grinding mill drum 10 is illustrated in FIG. 1 which includes a cylindrical body portion 12 having apertured flanges 14 at the opposite ends thereof which provide means for mounting end plates or covers on the drum in a well known manner.
  • drum 10 is merely illustrative of one of a wide variety of drum structures employed in the rotary grinding mill field, and that the lining of the present invention can be employed with drum structures other than that illustrated.
  • Drum 10 is provided with a wear resistant lining [6 which, in the embodiment illustrated, is axially and circumferentially coextensive with respect to the corresponding dimensions of the inner surface of the drum. The circumferentially opposite ends of the lining abut along an axially extending line 18.
  • Lining I6 is comprised of a layer 20 of a resilient wear resistant material, such as natural or synthetic rubber, and an outer sheet 22 of flexible permanent magnet material as described more fully hereinafter.
  • the surface of layer 20 facing inwardly of the drum may be smooth or, as illustrated, may be provided with axially extending lifters 24 for elevating the material being treated in the drum as well as the ball, tube or rod elements employed to achieve mixing or pulverizing of the material.
  • Lifters 24 are illustrated as radially inwardly projecting ribs integral with the material of layer 20, but it will be appreciated that other lifter constructions integral with or separate from layer 20 and suitably interengaged therewith can be employed.
  • the radial thickness of layer 20 in the areas between lifters 24 can vary from one lining to another depending on the particular mill design, but generally the thickness is between V: to 2 inches.
  • Grinding mill drums are generally produced from steel which, of course, is a magnetic material, and the following description of the lining constructions of the present invention will be described in conjunction with a steel drum having a cylindrical inner surface on which the lining is mounted. It will be appreciated, however, that the inner surface ofa particular drum on which the lining is mounted may be defined other than by the inner surface of the drum shell and that it is only necessary that the means defining the inner surface of the drum on which the lining is to be mounted be ofa magnetic material.
  • the permanent magnet material designated by flexible sheet .22 in FIG. 1, is a product commercially available from Minnesota Mining and Manufacturing Co. under the trademark PLASTIFORM.
  • This material includes a body portion of rubber having particles of barium ferrite embedded therein during the production of the sheet or strip material.
  • the magnet material is available in thicknesses of about 1/32 and 1/16 inch and in widths of A inch to 12 inches.
  • the particles are magnetized to provide the sheet with desired magnetic properties on the faces thereof.
  • the particles are magnetized to provide alternate areas of opposite polarity along the plane of the sheet. It will be appreciated, however, that this particular polar relationship is not essential to the principles of the present invention, and that the particles in the body may be magnetized to provide, for example, for the opposite faces of the material to be of opposite polarity.
  • sheet 22 of permanent magnet material is illustrated in FIG. 2 as having alternate north and south poles with respect to the longitudinal axis of the milling drum, as indicated by the letters N and S, respectively.
  • Layer of resilient wear resistant lining material has an outer or mounting surface 26 facing cylindrical inner surface 28 of the drum.
  • Sheet 22 is bonded, such as by a suitable adhesive or by vulcanization, to mounting surface 26 of layer 20.
  • permanent magnet material 22 is magnetically attracted to inner surface 28 of body portion I2 of the drum, whereby the lining is held in place with respect thereto.
  • the alternate polarity along sheet 22 provides a plurality of magnetic circuits having flux paths including portions 30 through steel body 12 and portions 32 extending radially inwardly of the inner face of sheet 22.
  • magnet material 22 is longitudinally and circumferentially coextensive with liner 20. Since the particular magnet material described is available in 12 inch widths, it will be appreciated that, in the longitudinal direction of the liner for example, separate sheets of the magnet material may be required to cover the liner surface depending on the longitudinal dimension of the liner. It will be understood, therefore, that coextensive as used herein with respect to the magnetic sheet material is inclusive of an arrangement requiring two or more sheets in side-by-side relationship which together cover the surface on which they are mounted.
  • FIG. 3 of the drawing illustrates a modification of the lining of FIG. 2 and by which an increase in holding power or magnetic attraction between the lining and mill drum is achieved.
  • the lining in FIG. 3 is similar in many respects to lining 16 in FIG. 2, and accordingly, like numerals are employed in FIG. 3 to designate corresponding components of the two lining structures.
  • a thin metal plate 34 of magnetic material such as steel is interposed between mounting surface 26 of layer 20 and the sheet of per manent magnet material 22.
  • Plate 34 is bonded to layer 20 such as by vulcanization, and sheet 22 is attached to the exposed outer surface of the metal plate.
  • sheet 22 is bonded to plate 34 such as by vulcanization, or by a suitable adhesive.
  • steel plate 34 which shortens the air gap between adjacent north and south poles. Accordingly, flux paths 32 extend through plate 34, whereby an increase in flux is achieved in the magnetic circuits to increase the holding power between the lining and steel body 12 of the drum.
  • steel plate 34 is of a thickness which will enable a flat lining sheet of the foregoing structure to be manually displaced into circular form for insertion into a drum.
  • a thickness of about 1/64 to 1/32 inch will enable such manipulation, but other thicknesses can be employed.
  • the thickness of the steel plate will depend in part on the thickness of the lining sheet and the overall flexibility desired. Generally, steel plate thicknesses of between about l/64 to 1% inch will provide the desired results.
  • plate 34 is coextensive in length and width with lining sheet 20, but it will be appreciated that the holding power provided by plate 34 can be achieved by other structural arrangements.
  • the resilience of the rubber lining and steel plate together advantageously add to the holding power provided by the magnet material.
  • the lining includes a layer 36 of resilient wear resistant material such as natural or synthetic rubber shown in circular form with the opposite ends abutting along axially extending line 37.
  • Layer 36 has a mounting surface 38 which faces the inner surface ofa drum when the lining is disposed therein.
  • Mounting surface 38 is provided with a plurality of strips 40 of flexible permanent magnet material such as that described hereinabove in conjunction with the preceeding embodiments. strips 40 are bonded to surface 38 such as by vulcanization and, in FIG. 4, define circumferentially continuous bands which are axially spaced apart along the length of layer 36.
  • the strips may, for example, be about one inch wide and may be spaced apart about one inch.
  • the retention capability provided by strips of permanent mag net material as opposed to continuous sheets is suff
  • strips 40 are illustrated as extending circumferentially of layer 36, it will be appreciated that the strips can extend longitudinally of layer 36 in circumferentially spaced apart relationship with respect to one another. Further, it will be appreciated that metal strips of magnetic material, such as steel, or a plate of such magnetic material can be interposed between strips 40 and mounting surface 38 of layer 36 in the manner and for the purpose described hereinabove in conjunction with steel plate 34 of the embodiment in FIG. 3. Moreover, it will be appreciated that other arrangements of flexible permanent magnet material relative to the mounting surface of layer 36 can be employed in place of strips to provide for the permanent magnet material to be disposed in spaced apart locations longitudinally and/or circumferentially of layer 36. Still further, in the strip arrangement illustrated in FIG. 4, or in other arrangements of magnet material in spaced apart locations on layer 36, the magnet material can be placed in corresponding recesses in mounting surface 38 so that the outer surfaces of the magnet material are coplanar with surface 38.
  • FIG. of the drawing Another embodiment of the present invention is illustrated in FIG. of the drawing.
  • a drum lining segment 42 which has longitudinal and circumferential dimensions L and C with respect to the longitudinal and circumferential dimensions of a given mill drum.
  • Dimension L may correspond to the longitudinal dimension of the drum, or a portion of the latter dimension, and the circumferential dimension of the drum would be a multiple of dimension C by any integer other than one.
  • two or more segments 42 disposed side-by-side circumferentially of the drum would be required to completely line the drum circumferentially.
  • one, two or more of the segments would be required to provide a lining longitudinally coextensive with the inner surface of the drum.
  • Each segment 42 includes a layer 44 of resilient wear resistant material such as natural or synthetic rubber and which if desired, can be provided on its inner surface with a lifting element 46.
  • Layer 44 has a mounting surface 48 which faces the inner surface of a drum when the segment is mounted therein.
  • a thin metal plate 50 of magnetic material such as steel
  • a sheet 52 of permanent magnet material of the character described hereinabove is attached to the exposed outer surface of metal plate 50.
  • plate 50 and layer 44 are formed with a curvature which conforms with the curvature of the inner surface of a drum with which the segment is to be used.
  • plate 50 is preferably longitudinally and circumferentially coextensive with mounting surface 48 of layer 44, and permanent magnet material 52 is likewise coextensive with the corresponding dimensions of plate 52.
  • Segments 42 are, of course, individually mounted within the drum in circumferentially adjacent relationship, and each segment is magnetically attracted to the inner surface of the drum in a manner described hereinabove with respect to the preceeding embodiments. While steel plate 50 is preferred in connection with the lining segment described to provide for increasing the holding power between the lining segment and drum, it will be appreciated that sheet 52 of permanent magnet material can be directly bonded to the mounting surface of layer 44, such as by vulcanization, without departing from the principles of the present invention.
  • the linings in certain embodiments are both longitudinally and circumferentially coextensive with the inner surface of the drum, it will be appreciated that the linings can be produced in elongated strips having a length sufficient for the strips to be circumferentially coextensive with the drum, and having a width requiring one or more sections with respect to the longitudinal dimension of the drum. Retention by magnetic attraction advantageously enables the production of the lining in elongated strip form, cutting of the strip to a length corresponding to the circumferential dimension of the drum, rolling the strip and then inserting the rolled strip into the drum to complete the assembly.
  • the lining is readily removable from the drum by peeling the lining away from the inner surface of the drum and axially withdrawing the lining from the drum.
  • a lining for an abrasive material handling device having surface means of magnetic material comprising, a layer of wear resistant resilient material, and permanent magnet means attached to said layer for releasably retaining said lining on said surface means by magnetic attraction.
  • said magnet means includes a body of resilient non-magnetic material and magnet particles in said body.
  • said magnet means includes a plurality of bodies of resilient non-magnetic material having magnet particles therein, and said bodies are attached to said layer in spaced apart relationship with respect to one another.
  • said magnet means includes a body of resilient non-magnetic material and magnet particles in said body.
  • said magnet means is sheet means of flexible non-metallic material impregnated with permanent magnet particles, said sheet means being bonded to said layer and coextensive with said layer in the directions of said first and second dimensions.
  • said magnet means is elongated strips of flexible nonmetallic material impregnated with permanent magnet particles, said strips being bonded to said layer and having their longitudinal dimensions generally parallel to one of said first and second dimensions, and said strips being spaced apart with respect to the other of said dimensions.
  • said layer has a mounting surface and said magnet means is a sheet of flexible non-metallic material impregnated with permanent magnet particles, said sheet being bonded to said mounting surface and coextensive with said layer in the directions of said first and second dimensions.

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US441416A 1974-02-11 1974-02-11 Wear resistant lining for grinding mills Expired - Lifetime US3913851A (en)

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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4340616A (en) * 1980-02-19 1982-07-20 United States Steel Corporation Method for decreasing the wear on a surface
WO1999056879A1 (en) 1998-05-06 1999-11-11 Rampage Ventures Inc. Wear-resistant, self-replenishing magnetized grinding mill liner
DE19847920C2 (de) * 1998-10-19 2002-02-21 Siegfried Pagenstecher Fa Auskleidung für Kugelmühlen und ähnliche Mahlaggregate
US6435971B2 (en) * 2000-06-06 2002-08-20 Mitsubishi Denki Kabushiki Kaisha Electric power steering apparatus
AU757809B2 (en) * 1998-12-02 2003-03-06 Rampage Ventures Inc. Magnetic retainer for a replaceable wear plate
CN1309480C (zh) * 2004-06-28 2007-04-11 沈阳市光大科技开发研究所 金属磁性衬板、保护板壳体及保护板壳体的制造工艺
CN100395031C (zh) * 2005-07-08 2008-06-18 山西太钢不锈钢股份有限公司 磨机端盖空心轴保护件及其格子型磨机端盖
RU2352400C2 (ru) * 2007-05-16 2009-04-20 ООО фирма "НордСиб" Способ закрепления футеровочных плит на защищаемой поверхности из магнитопроводящего материала
US20100181403A1 (en) * 2009-01-16 2010-07-22 Kennametal Inc. Drum liner assembly for a mill drum having replaceable drum liner segments
RU2397024C1 (ru) * 2009-06-01 2010-08-20 Федеральное государственное унитарное предприятие Центральный научно-исследовательский институт конструкционных материалов "Прометей" (ФГУП ЦНИИ КМ "Прометей") Способ получения наноразмерного металлического порошка
RU2397023C1 (ru) * 2009-06-24 2010-08-20 ООО фирма "НордСиб" Устройство для закрепления футеровочных плит на защищаемой поверхности из магнитопроводящего материала
US20110181067A1 (en) * 2010-01-25 2011-07-28 Corrosion Engineering, Inc. Liner Systems
US20110220747A1 (en) * 2007-08-29 2011-09-15 Polysius Ag Tube mill with internal lining of epoxy material
CN102228854A (zh) * 2011-06-17 2011-11-02 于风福 一种球磨机衬板及其制造方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE7712929L (sv) * 1976-11-19 1978-05-20 Minnesota Mining & Mfg Notningsbestendig platta, derav framstelld slitbeleggning och sett att framstella denna

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2909335A (en) * 1953-08-10 1959-10-20 Trelleborgs Gummifabriks Ab Resilient and bonded drum lining
DE1810920A1 (de) * 1967-12-19 1969-07-03 Trelleborgs Gummifabriks Ab Verfahren zur Anbringung einer verschleissfesten Auskleidung an einer Wand
US3467319A (en) * 1966-08-25 1969-09-16 John F Rampe Liquid-cooled processing vessel

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2909335A (en) * 1953-08-10 1959-10-20 Trelleborgs Gummifabriks Ab Resilient and bonded drum lining
US3467319A (en) * 1966-08-25 1969-09-16 John F Rampe Liquid-cooled processing vessel
DE1810920A1 (de) * 1967-12-19 1969-07-03 Trelleborgs Gummifabriks Ab Verfahren zur Anbringung einer verschleissfesten Auskleidung an einer Wand

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4340616A (en) * 1980-02-19 1982-07-20 United States Steel Corporation Method for decreasing the wear on a surface
WO1999056879A1 (en) 1998-05-06 1999-11-11 Rampage Ventures Inc. Wear-resistant, self-replenishing magnetized grinding mill liner
US6027057A (en) * 1998-05-06 2000-02-22 David Roger Miles Wear-resistant, self-replenishing magnetized grinding mill liner
DE19847920C2 (de) * 1998-10-19 2002-02-21 Siegfried Pagenstecher Fa Auskleidung für Kugelmühlen und ähnliche Mahlaggregate
AU757809B2 (en) * 1998-12-02 2003-03-06 Rampage Ventures Inc. Magnetic retainer for a replaceable wear plate
US6435971B2 (en) * 2000-06-06 2002-08-20 Mitsubishi Denki Kabushiki Kaisha Electric power steering apparatus
CN1309480C (zh) * 2004-06-28 2007-04-11 沈阳市光大科技开发研究所 金属磁性衬板、保护板壳体及保护板壳体的制造工艺
CN100395031C (zh) * 2005-07-08 2008-06-18 山西太钢不锈钢股份有限公司 磨机端盖空心轴保护件及其格子型磨机端盖
RU2352400C2 (ru) * 2007-05-16 2009-04-20 ООО фирма "НордСиб" Способ закрепления футеровочных плит на защищаемой поверхности из магнитопроводящего материала
US20110220747A1 (en) * 2007-08-29 2011-09-15 Polysius Ag Tube mill with internal lining of epoxy material
US8608094B2 (en) * 2007-08-29 2013-12-17 Polysius Ag Tube mill with internal lining of epoxy material
US20100181403A1 (en) * 2009-01-16 2010-07-22 Kennametal Inc. Drum liner assembly for a mill drum having replaceable drum liner segments
RU2397024C1 (ru) * 2009-06-01 2010-08-20 Федеральное государственное унитарное предприятие Центральный научно-исследовательский институт конструкционных материалов "Прометей" (ФГУП ЦНИИ КМ "Прометей") Способ получения наноразмерного металлического порошка
RU2397023C1 (ru) * 2009-06-24 2010-08-20 ООО фирма "НордСиб" Устройство для закрепления футеровочных плит на защищаемой поверхности из магнитопроводящего материала
US20110181067A1 (en) * 2010-01-25 2011-07-28 Corrosion Engineering, Inc. Liner Systems
US8708391B2 (en) 2010-01-25 2014-04-29 Corrosion Engineering, Inc. Liner systems
CN102228854A (zh) * 2011-06-17 2011-11-02 于风福 一种球磨机衬板及其制造方法

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