US3280614A - Method of texturing metal sheet - Google Patents

Method of texturing metal sheet Download PDF

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Publication number
US3280614A
US3280614A US301141A US30114163A US3280614A US 3280614 A US3280614 A US 3280614A US 301141 A US301141 A US 301141A US 30114163 A US30114163 A US 30114163A US 3280614 A US3280614 A US 3280614A
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US
United States
Prior art keywords
powder
sheets
metallic
sheet
textured
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US301141A
Other languages
English (en)
Inventor
Richard A Cordray
Sheridan R Crooks
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Republic Steel Corp
Original Assignee
Republic Steel Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Republic Steel Corp filed Critical Republic Steel Corp
Priority to US301141A priority Critical patent/US3280614A/en
Priority to GB24154/64A priority patent/GB1003135A/en
Priority to FR977695A priority patent/FR1398358A/fr
Priority to LU46329D priority patent/LU46329A1/xx
Priority to NL6407332A priority patent/NL6407332A/xx
Priority to BE649917A priority patent/BE649917A/xx
Priority to DER38249A priority patent/DE1278300B/de
Application granted granted Critical
Publication of US3280614A publication Critical patent/US3280614A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C1/00—Processes, not specifically provided for elsewhere, for producing decorative surface effects
    • B44C1/24—Pressing or stamping ornamental designs on surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
    • B21B1/227—Surface roughening or texturing
    • 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
    • Y10S29/00—Metal working
    • Y10S29/03—Ornamenting with other step
    • 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
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/922—Static electricity metal bleed-off metallic stock
    • Y10S428/9265—Special properties
    • Y10S428/927—Decorative informative
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4998—Combined manufacture including applying or shaping of fluent material
    • Y10T29/49982—Coating
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12014—All metal or with adjacent metals having metal particles
    • Y10T428/12028—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, etc.]
    • Y10T428/12063—Nonparticulate metal component
    • Y10T428/12069—Plural nonparticulate metal components
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12389—All metal or with adjacent metals having variation in thickness
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12993—Surface feature [e.g., rough, mirror]
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness

Definitions

  • This invention relates generally to metallic sheets, and more particularly, to textured metallic sheets having a surface provided with a unique intaglio design and to a method of producing said design by means of a novel rolling process.
  • the subject of this invention represents an improvement over applicants copending applications Serial No. 108,196, filed May S, 1961, now Patent No. 3,109,331, issued November 5, 1963, and application Serial No. 301,140, filed August 9, 1963, which latter application is a divisional application of the former.
  • Sheet metal especially stainless steel
  • Sheet metal is being widely used in the architectural field, particularly for use as ornamental building panels. Quite often, the entire exterior walls of large buildings are covered with such panels and one can readily appreciate that the smooth fiat surface of such panels is most unappealing to the eye if not perfectly fiat, and in the case of stainless steel, the highly reflective nature of the surface may also be very objectionable.
  • one of the objects of this invention is to provide a metallic sheet having a random intaglio textured surface provided with a dendritic design.
  • Another object of this invention is to provide a novel method for imparting a pleasing and unique textured surface on metallic sheets.
  • a further object of the invention is to provide a method for applying to metallic sheets a non-repeating design by passing between a pair of smooth surfaced rolls a pair of metallic sheets having a texturing agent therebetween.
  • Still another object of the invention is to provide a method for texturing metallic sheets by the use of a recoverable design-producing agent which forms a random pattern consisting of adjacent shiny and dull or matte surfaced areas
  • Metallic sheets have been provided with decorative or textured surfaces in the past by any one of several processes which produce metallic sheets having decorative surfaces far less appealing than the present article.
  • the prior practice has been to impart a consistent dull or matte finish to metallic sheets by either sandblasting the surface of the sheets or by passing the sheets between rolls having a textured surface thereon.
  • the sheets of the former group are decorative only in the sense that they are provided with a dulled or roughened surface while the latter type of sheets comprise a surface design which is necessarily of a repeating nature.
  • FIGURE 1 is a perspective view showing the steps of carrying out the subject invention with portions of the upper sheet broken away to illustrate the condition of the metallic sheets and the texturing agent before and after passing between the pressure rolls.
  • FIGURE 2 is a perspective view of a textured metallic sheet produced according to the invention.
  • FIGURE 3 is a partial sectional view taken along the line 3-3 of FIGURE 2, and illustrates the adjacent raised and depressed areas which form the subject design.
  • the random textured finish is produced on the metallic sheets by forming a sandwich or composite pack consisting of a pair of metallic sheets with a filler or texturing agent comprising metallic or non-metallic powder disposed therebetween.
  • the composite pack is then passed between a pair of smooth-surfaced rolls which causes the powder contained between the two sheets to become fluidized as compression of the entrapped air takes place during rolling.
  • This fluidization of the powder permits displacement of the powder and allows flow patterns to develop within the powder mass, whereby the opposed surfaces of the sheets as they are advanced through the pressure rolls are embossed or textured according to these flow patterns.
  • the air entrapped between the pair of sheets provides the novel design set forth herein due to the action of features to have a decided grain or axis substantially,
  • the composite pack generally designated 1 comprises upper and lower metallic sheets S and S, respectively.
  • a layer of metallic or non-metallic powder P has been spread evenly along the lower sheet S.
  • the completed composite pack is then passed between the plane surfaced rolls R and R, whereupon the pressure applied to the fluidized powder between the compressed sheets creates the texturing design as seen in the right-hand portion of the figure.
  • the texture produced according to this method will be evenly reproduced in the juxtaposed surfaces of both sheets S and S and the opposed texture patterns will be mirror images.
  • FIGURE 2 shows a textured metallic sheet produced according to the above described method wherein the raised shiny portions 2 will be seen to comprise fern-like or dendritic patterns extending substantially along one axis of the sheet S. Any adjacent raised shiny portions 2 are separated by intaglio or depressed areas 3 having a dull or matte surface in contrast to the shiny raised portions. The portions 2 of the sheet are not dulled or substantially reduced in thickness by the powder P, due to the fact that the powder was fluidized by compression of the air entrapped between the rolled sheets which enabled the powder over the raised areas to be carried away by the roll pressure and prevented the powder from being compressed into the surface of the sheet now comprising the raised portions.
  • Each of the raised shiny portions includes a plurality of branches or leaves 4 directed obliquely from the central rib or axis of the shiny portions. It will be noted that there are slight depressions or intaglio areas 5 forming valleys in the surface of the sheets between each of the leaves or branches 4, but that these depressed areas are not nearly as deep as the previously described intaglio areas 3.
  • any one of several metallic or non-metallic powders may be utilized to produce the texturing design.
  • the hardness of the powders used should approximate the hardness of the metal being textured and preferably the powders should be harder, but it will be understood that it is possible to texture with powders which are softer than the metal sheets, i.e., aluminum powder can be used to texture stainless steel.
  • Some examples of powders which have been successfully used in texturing are: silica, alumina, cement, fire clay, stainless steel, iron, and nickel. Besides the hardness requirement, it is necessary that the powder have the ability to be fluidized to some degree.
  • the amount of roll pressure, and therefore the amount of sheet reduction used in the process of this invention has been found to affect the quality of the textured sheet.
  • the desired range of degree of reduction has been found to be between 2 percent and 7 percent, although greater or lesser roll pressures can be used with a resultant sacrifice in quality of design. If this range is not adhered to, then there will be inadequate depression of the metal or else the metal will be caused to pinch and deform the opposite sides of the sheets.
  • the speed at which the composite pack is rolled plays a large part in controlling the formation of the textured sheet.
  • the operable range of the roll speed has been found to be between 25 feet per minute and 200 feet per minute. Rolling the sheets outside of this range has been found to produce poorly defined patterns and to cause the metal to smear.
  • the weight or amount of powder spread upon the sheets definitely affects the texturing. As the weight of powder per square foot is increased, the design of the pattern changes gradually until it becomes broader and heavier by comparison. It should be noted that the fundamental appearance does not change, only the general size.
  • the critical range lies between 1 gram of powder per square foot and 50 grams per square foot. For any given circumstance, however, the acceptable range would be limited within this range, since the smaller the rolls and the shorter the sheets, the greater the permissible weight of powder. Utilizing 50 grams of powder per square foot when passing long sheets through large rolls would produce a very pronounced buckling and pinching of the metal sheets.
  • permeability relates to that property of the powder which most affects the fluidization of the powder particles by the air which is entrapped between the sandwiched metal sheets and assists in displacing the powder during rolling to provide the ultimate fern-like pattern.
  • a Blaine apparatus an accepted device for determining powder permeability, may be used and indicates in seconds, the length of time required for a specific volume of air to permeate a specific volume of the powder.
  • a textured pattern is produced with extremely fine detail, many veins or valleys, and which may be generally characterized as small.
  • a powder with a permeability measured under the same conditions but with a value of 12 seconds gives a large pattern and the finer veins or details are missing.
  • Powders which have permeabilities of only a few seconds, will give only a smeared pattern and do not texture properly. It appears that there must be a considerable portion of fines, or super fines, in order to obtain a pleasing pattern and therefore the lower limit on permeability is not readily established, since clays which are essentially impermeable, will give a textured pattern when rolled as described. The pattern becomes progressively finer, however, as the fineness of the powder increases.
  • the above two specific permeability examples are not to be considered the upper and lower-most limits, but are merely recited to illustrate the resulting characteristics of the textured pattern so produced using these values since no specific level exists at which the pattern suddenly appears or disappears.
  • the method of texturing metallic sheets capable of elongation by roll pressure which comprises; applying a substantially uniform layer of dry powder on top of a first metallic sheet, said powder having a hardness approximating the hardness of said sheet and weighing between 1-50 grams per square foot and having a permeability of at 168.51; 5 seconds as measured by the Blaine apparatus; placing a second metallic sheet over said first sheet to form a composite pack; progressively passing the composite pack between a pair of plain-surfaced pressure rolls at a speed within the range of 25-200 feet per minute and reducing said sheet between 2-7 percent during said pass; whereby, the dry powder is fluidized by compression of the air entrapped between said sheets and progressively spread out in a predominantly longitudinal direction reverse to that of the travel of the pack through the rollers to form random fern-like areas free of powder and adjacent areas in contact with the powder so that thoseopposed areas of said sheets in contact with the powder are compressed to form depressed areas in the sheets; separating the sheets which have been textured with mirror imaged patterns; and

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
US301141A 1963-08-09 1963-08-09 Method of texturing metal sheet Expired - Lifetime US3280614A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
US301141A US3280614A (en) 1963-08-09 1963-08-09 Method of texturing metal sheet
GB24154/64A GB1003135A (en) 1963-08-09 1964-06-10 Process for texturing metallic sheets
FR977695A FR1398358A (fr) 1963-08-09 1964-06-10 Procédé d'obtention par laminage d'un motif original gravé en creux dans la surface de feuilles métalliques
LU46329D LU46329A1 (fr) 1963-08-09 1964-06-16
NL6407332A NL6407332A (fr) 1963-08-09 1964-06-26
BE649917A BE649917A (fr) 1963-08-09 1964-06-30
DER38249A DE1278300B (de) 1963-08-09 1964-06-30 Verfahren zur Oberflaechenpraegung von Metallblechen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US301141A US3280614A (en) 1963-08-09 1963-08-09 Method of texturing metal sheet

Publications (1)

Publication Number Publication Date
US3280614A true US3280614A (en) 1966-10-25

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ID=23162124

Family Applications (1)

Application Number Title Priority Date Filing Date
US301141A Expired - Lifetime US3280614A (en) 1963-08-09 1963-08-09 Method of texturing metal sheet

Country Status (7)

Country Link
US (1) US3280614A (fr)
BE (1) BE649917A (fr)
DE (1) DE1278300B (fr)
FR (1) FR1398358A (fr)
GB (1) GB1003135A (fr)
LU (1) LU46329A1 (fr)
NL (1) NL6407332A (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3955261A (en) * 1972-02-17 1976-05-11 Carl Appel Embossed decorative facing panel
US4320176A (en) * 1977-10-17 1982-03-16 General Staple Company, Inc. Splice gun supply strip
WO1995019861A1 (fr) * 1994-01-19 1995-07-27 Söderfors Powder Aktiebolag Procede trouvant application dans la fabrication d'un produit metallique composite
US20100242559A1 (en) * 2009-03-24 2010-09-30 Saenz De Miera Vicente Martin Method of producing aluminum products
US20210094132A1 (en) * 2018-05-31 2021-04-01 Kongju National University Industry-University Cooperation Foundation Method for manufacturing kitchen knife by using multilayer material, and kitchen knife manufactured thereby

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US319306A (en) * 1885-06-02 Process of making
US1006600A (en) * 1911-10-24 Nat Tube Co Rolled metal article.
US1572348A (en) * 1923-05-29 1926-02-09 John J Carow Method of ornamentation
US2024007A (en) * 1935-01-24 1935-12-10 John M Mccolloch Method of producing mat finish on hardened rolls
US2974709A (en) * 1954-04-09 1961-03-14 Edgar Gretener A G Dr Process for the manufacture of embossed screens
US3109331A (en) * 1961-05-05 1963-11-05 Republic Steel Corp Method of texturing metal sheets

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB495420A (en) * 1937-05-14 1938-11-14 British Aluminium Co Ltd Improvements in and relating to the surface treatment of metallic sheets
DE821472C (de) * 1950-01-31 1951-11-19 Dr Paul Dornbusch Verfahren zum Erzeugen von Oberflaecheneffekten auf Warenbaendern aus thermoplastischen Werkstoffen

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US319306A (en) * 1885-06-02 Process of making
US1006600A (en) * 1911-10-24 Nat Tube Co Rolled metal article.
US1572348A (en) * 1923-05-29 1926-02-09 John J Carow Method of ornamentation
US2024007A (en) * 1935-01-24 1935-12-10 John M Mccolloch Method of producing mat finish on hardened rolls
US2974709A (en) * 1954-04-09 1961-03-14 Edgar Gretener A G Dr Process for the manufacture of embossed screens
US3109331A (en) * 1961-05-05 1963-11-05 Republic Steel Corp Method of texturing metal sheets

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3955261A (en) * 1972-02-17 1976-05-11 Carl Appel Embossed decorative facing panel
US4320176A (en) * 1977-10-17 1982-03-16 General Staple Company, Inc. Splice gun supply strip
WO1995019861A1 (fr) * 1994-01-19 1995-07-27 Söderfors Powder Aktiebolag Procede trouvant application dans la fabrication d'un produit metallique composite
US5815790A (en) * 1994-01-19 1998-09-29 Soderfors Powder Aktiebolag Method relating to the manufacturing of a composite metal product
US20100242559A1 (en) * 2009-03-24 2010-09-30 Saenz De Miera Vicente Martin Method of producing aluminum products
US20210094132A1 (en) * 2018-05-31 2021-04-01 Kongju National University Industry-University Cooperation Foundation Method for manufacturing kitchen knife by using multilayer material, and kitchen knife manufactured thereby

Also Published As

Publication number Publication date
NL6407332A (fr) 1965-02-10
FR1398358A (fr) 1965-05-07
DE1278300B (de) 1968-09-19
GB1003135A (en) 1965-09-02
BE649917A (fr) 1964-12-30
LU46329A1 (fr) 1972-01-01

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