US3141817A - Suction press roll - Google Patents

Suction press roll Download PDF

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Publication number
US3141817A
US3141817A US218712A US21871262A US3141817A US 3141817 A US3141817 A US 3141817A US 218712 A US218712 A US 218712A US 21871262 A US21871262 A US 21871262A US 3141817 A US3141817 A US 3141817A
Authority
US
United States
Prior art keywords
rubber
powder
stainless steel
press roll
covering
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
US218712A
Other languages
English (en)
Inventor
Benjamin T Collins
Charles P Mchugh
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.)
Raybestos Manhattan Inc
Original Assignee
Raybestos Manhattan Inc
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 Raybestos Manhattan Inc filed Critical Raybestos Manhattan Inc
Priority to US218712A priority Critical patent/US3141817A/en
Priority to GB32772/63A priority patent/GB975494A/en
Priority to NO149802A priority patent/NO119455B/no
Application granted granted Critical
Publication of US3141817A publication Critical patent/US3141817A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F3/00—Press section of machines for making continuous webs of paper
    • D21F3/02—Wet presses
    • D21F3/10—Suction rolls, e.g. couch rolls
    • D21F3/105—Covers thereof

Definitions

  • This invention relates to an improved press roll, and more particularly to improved suction press rolls such as are used in paper making machines.
  • Suction press rolls used in paper making machines consist of rubber covered metal shells drilled radially with numerous holes. Such suction press rolls are used in conjunction with mating press rolls as a wringer for wringing or squeezing out water from a woolen blanket or felt carrying a web of paper which is passed between the press rolls in the operation of the paper making machine.
  • the shells are made of stainless steel. The rubber covering is bonded to the stainless steel shell by a hard rubber base.
  • a sacriiicial anodic metal powder selected from the group or class consisting of aluminum powder, chromium powder and ferrochrome powder. It may be noted that these metals, cationic in action, are in the group of metals above stainless steel in the series. It is found that the incorporation of such anodic metal powders in the bonding base rubber decreases the rate of loss of adhesion between the rubber covering and the steel shell to the point where the covering may be expected to be worn out before the covering loses its bond to the steel body. For example, in adhesion tests on test jigs, a 300% improvement in bond life has been obtained.
  • the prime object of our present invention thus specifically relates to the production of improved suction press rolls in which a sacrificial anodic metal is incorporated into the bond between the rubber covering and the stainless steel shell of the press roll for the purposes and to produce the results referred to.
  • FIGURE 1 is a front elevational View of a suction press roll embodying the present invention.
  • FIG. 2 is a view thereof taken in cross-section in the plane of the line 2-2 of FIG. 1.
  • the suction press roll in which the feature of the present invention is incorporated comprises a stainless steel cylindrical shell 10 provided with a rubber covering 12, the shell and the rubber covering being drilled radially with numerous holes 14, over the body thereof.
  • the rubber covering comprises a face rubber layer 16 and a base rubber layer 18, the base rubber layer forming the bond between the rubber covering and the stainless steel shell.
  • the stainless steel shell 10 certain desirabletypes of stainless steel (because of modulus and machining characteristics) are desirable because of the excellent initial adhesion one may obtain between the stainless steel body Usually the stainless steel shells are made of a thickness somewhat greater than 2 inches. i
  • a preferred type of stainless steel which has been used in the manufacture of these stainless steel roll bodies or shells has the following composition.
  • the face rubber layer 16 of the rubber covering is a resilient rubber having a standard composition of which the following is an example:
  • the base rubber layer 18 comprises in the finished press roll a hard rubber; and to effect the desired enhanced bonding of the rubber covering to the stainless steel shell there is incorporated in the composition of the base rubber layer the sacrificial anodic metal powder referred to, namely, a metal powder selected from the group or class consisting of aluminum powder, chromium powder and ferrochrome powder.
  • the anodic metal powder may be incorporated throughout the thickness of the base vrubber layer 18 (usually 51H6 to 1% thick), it is preferred to have only a part (the layer that is contiguous to the surface of the steel shell), such as from 1A to 1/2 of the thickness of the base rubber containing the anodic metal powder, in which case the remainder of the base rubber layer is made of a composition in which the anodic metal powder is substituted by Whiting (calcium carbonate) or other filler.
  • Whiting calcium carbonate
  • a first layer is laid onto the steel shell of say one-half the thickness of the base layer containing the anodic metal powder, a second layer completing the base thickness and containing Whiting as the filler is then laid onto the rst layer, after which the layer of the face rubber is applied, the assembly then being vulcanized under pressure.
  • the amount of the anodic metal powder by weight should be comparable to and preferably greater than the amount of the rubber in the composition.
  • a satisfactory metal powder is one in which passes through a Q0 mesh screen and 35% through a 325 mesh screen, it being found that a coarser powder yields better bond protection than a finer powder.
  • Example l In this, and in the following examples, all parts given are by weight, unless otherwise specified.
  • This example illustrates the use of aluminum powder as the anodic metal in the composition ofthe base rubber
  • Z-naphthalenethiol is employed as a peptizer.
  • the remainder, namely the upper layer of the base rubber may have a composition of the same formula as given above with the exception that the aluminum powder is substituted by whiting as a filler.
  • Example Il This example illustrates the use of chromium powder as the anodic metal'powder which is incorporated in the base rubber bond;
  • a typical formula which gives good adhesion retention is as follows.
  • a press roll comprising a stainless steel shell and a rubber covering bonded thereto, the bond between the shell and the covering comprising rubber having incorporated therein a sacrificial anodic metal powder selected from the class of metals above stainless steel in the series and consisting of aluminum powder, chromium powder and ferrochrome powder.
  • a suction press roll for paper making machines comprising a stainless steel cylindrical shell and a rubber covering bonded thereto, the bond between the shell and the covering comprising a hard rubber layer having incorporated therein a sacrificial anodic metal powder selected from the class of metals above stainless steel in the series and consisting of aluminum powder, chromium powder and ferrochrome powder.
  • a press roll comprising a stainless steel shell and a rubber covering bonded thereto, said rubber covering including a face rubber layer and a base rubber layer, the base rubber layer, forming the bond between the shell and the covering, having incorporated therein a sacrificial anodic metal powder selected from the class of metals above stainless steel inthe E.M.F. series and consisting of aluminum powder, chromium powder and ferrochrome powder.

Landscapes

  • Rolls And Other Rotary Bodies (AREA)
  • Paper (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
  • Laminated Bodies (AREA)
US218712A 1962-08-22 1962-08-22 Suction press roll Expired - Lifetime US3141817A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US218712A US3141817A (en) 1962-08-22 1962-08-22 Suction press roll
GB32772/63A GB975494A (en) 1962-08-22 1963-08-19 Improvements in or relating to a press roll
NO149802A NO119455B (enrdf_load_html_response) 1962-08-22 1963-08-21

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US218712A US3141817A (en) 1962-08-22 1962-08-22 Suction press roll

Publications (1)

Publication Number Publication Date
US3141817A true US3141817A (en) 1964-07-21

Family

ID=22816190

Family Applications (1)

Application Number Title Priority Date Filing Date
US218712A Expired - Lifetime US3141817A (en) 1962-08-22 1962-08-22 Suction press roll

Country Status (3)

Country Link
US (1) US3141817A (enrdf_load_html_response)
GB (1) GB975494A (enrdf_load_html_response)
NO (1) NO119455B (enrdf_load_html_response)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3349693A (en) * 1965-02-18 1967-10-31 Stowe Woodward Inc Roll cover construction
US3883293A (en) * 1974-04-05 1975-05-13 Xerox Corp Pressure roll construction
US3893795A (en) * 1970-08-20 1975-07-08 Rowland Dev Corp Embossing rolls with areas of differential hardness
US4018648A (en) * 1976-03-25 1977-04-19 Westvaco Corporation Galvanic protection of a couch roll
US4797246A (en) * 1983-02-04 1989-01-10 Dietmar Reinke Continuous manufacture of a perforated plastic film
US4861433A (en) * 1986-04-08 1989-08-29 Sunds Defibrator Aktiebolag Dewatering press with perforated metal outer shell and resilient elastic mounting means
US6106447A (en) * 1997-02-07 2000-08-22 Voith Sulzer Papiermaschinen Gmbh Press jacket and roll with a press jacket of this kind
US20080176728A1 (en) * 2007-01-24 2008-07-24 Winkler + Dunnebier Aktiengesellschaft Suction roller for transporting flat material blanks
US20130217554A1 (en) * 2012-02-16 2013-08-22 Sumitomo Rubber Industries, Ltd. Sheet conveying roller and production method therefor
US20140110226A1 (en) * 2012-10-23 2014-04-24 The Procter & Gamble Company Carrier members or transfer surfaces having a resilient member
US9603751B2 (en) 2012-04-16 2017-03-28 The Procter & Gamble Company Methods for transferring discrete articles

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2046724A (en) * 1933-04-05 1936-07-07 Gen Motors Corp Seal for refrigerating apparatus
US2581920A (en) * 1947-03-21 1952-01-08 Firestone Tire & Rubber Co Rubber to metal adhesive comprising dichlorobutadiene resin and a chlorinated elastomer and use thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2046724A (en) * 1933-04-05 1936-07-07 Gen Motors Corp Seal for refrigerating apparatus
US2581920A (en) * 1947-03-21 1952-01-08 Firestone Tire & Rubber Co Rubber to metal adhesive comprising dichlorobutadiene resin and a chlorinated elastomer and use thereof

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3349693A (en) * 1965-02-18 1967-10-31 Stowe Woodward Inc Roll cover construction
US3893795A (en) * 1970-08-20 1975-07-08 Rowland Dev Corp Embossing rolls with areas of differential hardness
US3883293A (en) * 1974-04-05 1975-05-13 Xerox Corp Pressure roll construction
US4018648A (en) * 1976-03-25 1977-04-19 Westvaco Corporation Galvanic protection of a couch roll
US4797246A (en) * 1983-02-04 1989-01-10 Dietmar Reinke Continuous manufacture of a perforated plastic film
US4861433A (en) * 1986-04-08 1989-08-29 Sunds Defibrator Aktiebolag Dewatering press with perforated metal outer shell and resilient elastic mounting means
US6106447A (en) * 1997-02-07 2000-08-22 Voith Sulzer Papiermaschinen Gmbh Press jacket and roll with a press jacket of this kind
US20080176728A1 (en) * 2007-01-24 2008-07-24 Winkler + Dunnebier Aktiengesellschaft Suction roller for transporting flat material blanks
US8007425B2 (en) * 2007-01-24 2011-08-30 Winkler + Dünnebier Aktiengesellschaft Suction roller for transporting flat material blanks
US20130217554A1 (en) * 2012-02-16 2013-08-22 Sumitomo Rubber Industries, Ltd. Sheet conveying roller and production method therefor
US10099405B2 (en) 2012-02-16 2018-10-16 Sumitomo Rubber Industries, Ltd. Sheet conveying roller and production method therefor
US9603751B2 (en) 2012-04-16 2017-03-28 The Procter & Gamble Company Methods for transferring discrete articles
US9999551B2 (en) 2012-04-16 2018-06-19 The Procter & Gamble Company Methods for transferring discrete articles
US20140110226A1 (en) * 2012-10-23 2014-04-24 The Procter & Gamble Company Carrier members or transfer surfaces having a resilient member
US9266314B2 (en) * 2012-10-23 2016-02-23 The Procter & Gamble Company Carrier members or transfer surfaces having a resilient member

Also Published As

Publication number Publication date
NO119455B (enrdf_load_html_response) 1970-05-19
GB975494A (en) 1964-11-18

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