WO2008062095A1 - An arrangement in a press unit with an extended nip - Google Patents
An arrangement in a press unit with an extended nip Download PDFInfo
- Publication number
- WO2008062095A1 WO2008062095A1 PCT/FI2007/050585 FI2007050585W WO2008062095A1 WO 2008062095 A1 WO2008062095 A1 WO 2008062095A1 FI 2007050585 W FI2007050585 W FI 2007050585W WO 2008062095 A1 WO2008062095 A1 WO 2008062095A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- belt
- arrangement
- shoe
- dry lubricant
- lubrication
- Prior art date
Links
- 239000000314 lubricant Substances 0.000 claims abstract description 47
- 238000005461 lubrication Methods 0.000 claims abstract description 28
- 239000011248 coating agent Substances 0.000 claims description 20
- 238000000576 coating method Methods 0.000 claims description 20
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 238000005507 spraying Methods 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 230000002706 hydrostatic effect Effects 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 239000007767 bonding agent Substances 0.000 claims description 3
- 230000007547 defect Effects 0.000 claims description 3
- 229910002804 graphite Inorganic materials 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 3
- 229910052961 molybdenite Inorganic materials 0.000 claims description 3
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 claims description 3
- 229910052982 molybdenum disulfide Inorganic materials 0.000 claims description 3
- 210000003739 neck Anatomy 0.000 claims description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 3
- 239000002904 solvent Substances 0.000 claims description 3
- 229910000906 Bronze Inorganic materials 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 239000010974 bronze Substances 0.000 claims description 2
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 claims description 2
- 229920002635 polyurethane Polymers 0.000 claims description 2
- 239000004814 polyurethane Substances 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 239000000835 fiber Substances 0.000 description 5
- 239000000123 paper Substances 0.000 description 5
- 239000004744 fabric Substances 0.000 description 3
- 239000003921 oil Substances 0.000 description 2
- 229920001131 Pulp (paper) Polymers 0.000 description 1
- 239000011111 cardboard Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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
- D21F3/0209—Wet presses with extended press nip
- D21F3/0218—Shoe presses
Definitions
- the present invention is related to material web machines, such as paper, cardboard, chemical pulp, tissue and comparable fiber web machines, for example. More particularly, the present invention is related to an arrangement in a press unit with an extended nip of a fiber web machine for reducing belt damage.
- the lubrication film between the loading shoe and the belt may be broken as a result of various local loading changes and/or shock or impact effects or similar disruptions in the press that affect the lubrication film between the loading shoe and the belt in the press unit with the extended nip.
- the belt becomes subject to high shear stress, which may cause a crack in the belt, from which the belt starts to delaminate.
- a local elongation is formed in the belt, which may destroy the belt very rapidly if it interferes with surrounding structures.
- the primary object of the present invention is to provide a novel arrangement that may be used to reduce the risk of such belt damage.
- This object may generally be achieved by means of an arrangement in a press unit with an extended nip including at least one pair of rollers, wherein facing surfaces of the rollers define the extended nip between the same and wherein at least one of the rollers is a belt roller, wherein the belt is loaded in the nip by a frontal surface of a loading shoe arranged in a radial direction in the belt roller, for example, such that, in order to ensure lubrication between the loading shoe and the belt, particularly in boundary lubrication situations, the frontal surface of the loading shoe and/or the inner surface of the belt, which is the facing surface of the loading shoe, is coated.
- the invention is based on the basic idea that at least one of two sliding surfaces that delimit a space influenced by the lubrication film between the loading shoe and the belt is coated, preferably with dry lubricant.
- the lubricant can be selected to be a sprayable or mechanically applicable low-friction dry lubricant that dries on surfaces, such as PTFE, MoS 2 or graphite, which bonds by means of a bonding agent to a treated cleansed surface once solvent has evaporated.
- An object may also be treated by completely immersing it in a solution. Thereby the treated loading shoe is also protected against corrosion, and separate protection of bare metal surfaces with grease is not needed.
- the dry lubricant may also provide a color that differs from metal. This enables, among other things, examining the evenness of lubricant distribution and the wear of the lubricant and locating problem areas related to lubrication, where the usual oil lubrication has been insufficient, in connection with belt replacement.
- the shoe houses a hydrostatic lubrication chamber, which is preferably an integral full-width pocket space that is slightly narrower than nip width.
- a hydrostatic lubrication chamber which is preferably an integral full-width pocket space that is slightly narrower than nip width.
- Even bearing surfaces of the shoe that do not have narrow necks extending across the nip area in the movement direction of the belt are preferable in terms of the permanence of the dry lubricant. Thus narrow necks on the bearing surfaces should also be avoided to avoid damage to the coating.
- Coating with dry lubricant is also suitable for a hydrodynamic shoe where hydrostatic lubricant chambers are not applied. Coating with dry lubricant ensures lubrication at very low speeds and/or high loads even if lubricant is only input in front of the shoe.
- Figure 1 schematically shows a first embodiment of an arrangement in accordance with the invention in a press unit with an extended nip of a fiber web machine, which is a paper machine;
- Figure 2 schematically shows a second embodiment of the arrangement in accordance with the invention in a press unit with an extended nip of a fiber web machine, which is a paper machine;
- Figure 3 schematically shows a third embodiment of the arrangement in accordance with the invention in a press unit with an extended nip of a fiber web machine, which is a paper machine.
- Figure 1 shows a general view of a pair of rollers 11, 12, forming a belt roller nip 13 of a press unit 1 with an extended nip between a shoe roller 12 and an opposing roller 11, where a web W is conveyed from a wire section via a pick-up suction roller 3 and a guide roller 2 and supported by fabrics running via the rollers in question.
- the press unit 1 with the extended nip includes the pair of rollers 11, 12, wherein facing surfaces of the rollers 11, 12 define the extended nip 13 between them. At least one of the rollers in the roller pair is the shoe roller 12. Thereby a belt 121 passes through the extended nip, the belt 121 being loaded in the nip by a frontal surface of a loading shoe 4 arranged in the belt roller in a radial direction.
- a sliding pair in the shoe nip 12 may be a polyurethane belt 121 and a steel/aluminum/aluminum bronze shoe 4, for example, both of which may be directly coated/finished with dry lubricant. Where a lubrication film has an influence between the loading shoe 4 and the belt 121, lubrication can be ensured so that only one or at least one of the sliding surfaces is coated/finished with dry lubricant.
- This basic idea may be implemented so that the facing surfaces of the loading shoe 4 and the belt 121, i.e. the frontal surface 41 of the loading shoe and the inner surface 122 of the belt are coated with dry lubricant.
- the coating i.e. the dry lubricant 5 coating
- the coating of the shoe 4 may be renewed as necessary by replacing the shoe with a spare one for operation during coating.
- the coating of the belt 121 may also be renewed, but it should be noted that a belt, as such, is a component subject to wear, and re-coating it is not necessarily cost-efficient.
- the coating of the shoe 4 may be provided directly on a smooth clean/cleansed metal surface.
- the belt 121 may be coated by mechanical application or spraying in an area contacting the shoe 4 in a loading situation, whereby fastening areas at the ends may be left uncoated so that the fastening of the belt does not slip.
- the solution is easy to implement in comparison with the prior art solution, where the inner surface of the belt is manufactured from a slippery mixture where a lubricant is a structural component of the belt.
- the coating of the inner surface 122 of the belt 121 which is a regularly replaced component, is preferable as, with a new belt, the coating will be "renewed” as well.
- the dry lubricant 5 also has a significant function in finishing the structure of the inner surface of the belt as the dry lubricant covers defects arising during the manufacture of the inner surface of the belt. Reference is made to the embodiment shown in Figure 2.
- a press unit 1 with an extended nip includes a pair of rollers 11, 12, where facing surfaces of the rollers define the extended nip 13 between the same. At least one of the rollers of the roller pair is a belt roller 12. Thereby a belt 121 passes through the extended nip, the belt 121 being loaded in the extended nip by a frontal surface of a loading shoe 4 arranged in the belt roller in a radial direction.
- the embodiment shown in Figure 2 differs from the embodiment shown in Figure 1 substantially in that only the inner surface 122 of the belt 121 facing the frontal surface 41 of the loading shoe 4 is coated with dry lubricant 5.
- Figure 3 shows a loading shoe 4 that may be applied in a press unit with an extended nip.
- a frontal surface 41 of a loading shoe between the loading shoe 4 and a belt 121 , facing the belt and radially loading the belt, is coated with dry lubricant.
- the dry lubricant ensuring the permanence of lubrication is a low-friction dry lubricant.
- Such dry lubricant may be applied to surface(s) by spraying or mechanically.
- Preferred dry lubricants include PTFE, MoS 2 or graphite, for example, which bonds by means of a bonding agent to a treated cleansed surface once solvent has evaporated.
- the object to be treated with dry lubricant such as the loading shoe 4 may be treated by completely immersing it in a solution.
Landscapes
- Paper (AREA)
Abstract
An arrangement in a press unit with an extended nip including at least one pair of rollers, wherein facing surfaces of the rollers define an extended nip between them and wherein at least one of the rollers is a belt roller, wherein the belt is loaded in the nip by a frontal surface of a loading shoe arranged in a radial direction in the belt roller. The invention is characterized in that, in order to ensure lubrication between the loading shoe and the belt (121), particularly in boundary lubrication situations, the frontal surface (41) of the loading shoe and/or the inner surface (122) of the belt, which is a facing surface of the frontal surface of the loading shoe, is coated with dry lubricant (5).
Description
An arrangement in a press unit with an extended nip
The present invention is related to material web machines, such as paper, cardboard, chemical pulp, tissue and comparable fiber web machines, for example. More particularly, the present invention is related to an arrangement in a press unit with an extended nip of a fiber web machine for reducing belt damage.
It is known that lubrication between a loading shoe and a belt in the press unit with the extended nip is arranged by inputting oil in front of and/or through the loading shoe.
It is known that in the press unit with the extended nip the lubrication film between the loading shoe and the belt may be broken as a result of various local loading changes and/or shock or impact effects or similar disruptions in the press that affect the lubrication film between the loading shoe and the belt in the press unit with the extended nip. In particular, as a result of such boundary lubrication situations, the belt becomes subject to high shear stress, which may cause a crack in the belt, from which the belt starts to delaminate. In addition, it is possible that a local elongation is formed in the belt, which may destroy the belt very rapidly if it interferes with surrounding structures.
The primary object of the present invention is to provide a novel arrangement that may be used to reduce the risk of such belt damage.
This object may generally be achieved by means of an arrangement in a press unit with an extended nip including at least one pair of rollers, wherein facing surfaces of the rollers define the extended nip between the same and wherein at least one of the rollers is a belt roller, wherein the belt is loaded in the nip by a frontal surface of a loading shoe arranged in a radial direction in the belt roller, for example, such that, in order to ensure lubrication between the loading shoe and the belt, particularly in boundary lubrication situations, the frontal surface of the loading shoe and/or the inner surface of the belt, which is the facing surface of the loading shoe, is coated.
Thus the invention is based on the basic idea that at least one of two sliding surfaces that delimit a space influenced by the lubrication film between the loading shoe and the belt is coated, preferably with dry lubricant.
In order to substantially reduce friction between the loading shoe and the belt, the lubricant can be selected to be a sprayable or mechanically applicable low-friction dry lubricant that dries on surfaces, such as PTFE, MoS2 or graphite, which bonds by means of a bonding agent to a treated cleansed surface once solvent has evaporated. An object may also be treated by completely immersing it in a solution. Thereby the treated loading shoe is also protected against corrosion, and separate protection of bare metal surfaces with grease is not needed.
The dry lubricant may also provide a color that differs from metal. This enables, among other things, examining the evenness of lubricant distribution and the wear of the lubricant and locating problem areas related to lubrication, where the usual oil lubrication has been insufficient, in connection with belt replacement.
Typically, the shoe houses a hydrostatic lubrication chamber, which is preferably an integral full-width pocket space that is slightly narrower than nip width. Even bearing surfaces of the shoe that do not have narrow necks extending across the nip area in the movement direction of the belt are preferable in terms of the permanence of the dry lubricant. Thus narrow necks on the bearing surfaces should also be avoided to avoid damage to the coating. Coating with dry lubricant is also suitable for a hydrodynamic shoe where hydrostatic lubricant chambers are not applied. Coating with dry lubricant ensures lubrication at very low speeds and/or high loads even if lubricant is only input in front of the shoe.
Using coating with dry lubricant for both sliding surfaces subject to load enables achieving the lowest friction and thus also a significant reduction in heat generation. The lower operating temperature achieved also extends service life of the belt and reduces the need for cooling lubricating oil.
In addition, in a boundary lubrication situation, where paper is locally conveyed in an amount larger than planned in the nip between a shoe roller and its opposing roller, the risk of damage is lower due to better sliding characteristics and the fact that less heat, which damages the belt, is generated.
In the following, the invention will be described by means of its preferred embodiments by reference to the appended drawing, where
Figure 1 schematically shows a first embodiment of an arrangement in accordance with the invention in a press unit with an extended nip of a fiber web machine, which is a paper machine;
Figure 2 schematically shows a second embodiment of the arrangement in accordance with the invention in a press unit with an extended nip of a fiber web machine, which is a paper machine; and
Figure 3 schematically shows a third embodiment of the arrangement in accordance with the invention in a press unit with an extended nip of a fiber web machine, which is a paper machine.
Reference is made to Figure 1, which shows a general view of a pair of rollers 11, 12, forming a belt roller nip 13 of a press unit 1 with an extended nip between a shoe roller 12 and an opposing roller 11, where a web W is conveyed from a wire section via a pick-up suction roller 3 and a guide roller 2 and supported by fabrics running via the rollers in question.
The press unit 1 with the extended nip includes the pair of rollers 11, 12, wherein facing surfaces of the rollers 11, 12 define the extended nip 13 between them. At least one of the rollers in the roller pair is the shoe roller 12. Thereby a belt 121 passes through the extended nip, the belt 121 being loaded in the nip by a frontal surface of a loading shoe 4 arranged in the belt roller in a radial direction.
A sliding pair in the shoe nip 12 may be a polyurethane belt 121 and a steel/aluminum/aluminum bronze shoe 4, for example, both of which may be directly coated/finished with dry lubricant. Where a lubrication film has an influence between
the loading shoe 4 and the belt 121, lubrication can be ensured so that only one or at least one of the sliding surfaces is coated/finished with dry lubricant.
This basic idea may be implemented so that the facing surfaces of the loading shoe 4 and the belt 121, i.e. the frontal surface 41 of the loading shoe and the inner surface 122 of the belt are coated with dry lubricant.
The coating, i.e. the dry lubricant 5 coating, may be renewed as necessary or a replaceable component. In particular, the coating of the shoe 4 may be renewed as necessary by replacing the shoe with a spare one for operation during coating. The coating of the belt 121 may also be renewed, but it should be noted that a belt, as such, is a component subject to wear, and re-coating it is not necessarily cost-efficient.
It is easiest to implement the coating of the shoe 4 by spraying, which makes it possible to ensure an even coating throughout, in cavities (=hydrostatic chamber) as well, and even in lubricant input openings. The coating of the shoe may be provided directly on a smooth clean/cleansed metal surface.
The belt 121 may be coated by mechanical application or spraying in an area contacting the shoe 4 in a loading situation, whereby fastening areas at the ends may be left uncoated so that the fastening of the belt does not slip. The solution is easy to implement in comparison with the prior art solution, where the inner surface of the belt is manufactured from a slippery mixture where a lubricant is a structural component of the belt.
The coating of the inner surface 122 of the belt 121, which is a regularly replaced component, is preferable as, with a new belt, the coating will be "renewed" as well. In addition, the coating of the belt enables covering any defects in the inner surface of the belt, such as air bells extending to the surface, for example, which may cause the inner surface of the belt to peel (=delaminate) during operation. The dry lubricant 5 also has a significant function in finishing the structure of the inner surface of the belt as the dry lubricant covers defects arising during the manufacture of the inner surface of the belt.
Reference is made to the embodiment shown in Figure 2. A press unit 1 with an extended nip includes a pair of rollers 11, 12, where facing surfaces of the rollers define the extended nip 13 between the same. At least one of the rollers of the roller pair is a belt roller 12. Thereby a belt 121 passes through the extended nip, the belt 121 being loaded in the extended nip by a frontal surface of a loading shoe 4 arranged in the belt roller in a radial direction. The embodiment shown in Figure 2 differs from the embodiment shown in Figure 1 substantially in that only the inner surface 122 of the belt 121 facing the frontal surface 41 of the loading shoe 4 is coated with dry lubricant 5.
Reference is made to Figure 3, which shows a loading shoe 4 that may be applied in a press unit with an extended nip.
In order to achieve the basic idea of the invention, i.e. to ensure lubrication, a frontal surface 41 of a loading shoe between the loading shoe 4 and a belt 121 , facing the belt and radially loading the belt, is coated with dry lubricant.
With regard to the permanence of the lubrication it is stated that the entry and exit of fabrics into and from the shoe nip as shown in Figure 3 are preferably implemented to continue in the direction of the curvature of the concave shoe. Thereby the fabric does not press the edge of the shoe and thus restrict the lubrication of the shoe.
The dry lubricant ensuring the permanence of lubrication is a low-friction dry lubricant. Such dry lubricant may be applied to surface(s) by spraying or mechanically. Preferred dry lubricants include PTFE, MoS2 or graphite, for example, which bonds by means of a bonding agent to a treated cleansed surface once solvent has evaporated.
Instead of spraying and/or mechanical application of the dry lubricant 5, the object to be treated with dry lubricant, such as the loading shoe 4, may be treated by completely immersing it in a solution. In addition, it is possible to provide a color different from metal with the dry lubricant in order to examine
— the evenness of lubricant distribution,
- any wear of the lubricant, and/or
- problem areas in lubrication in connection with belt replacement.
The invention has been described above by means of examples. Naturally, the intention is not to limit the invention thereby in any way; rather, many alternative solutions and variations and functionally equivalent alternatives are possible within the scope of the invention as defined by the appended claims.
Claims
1. An arrangement in a press unit (1) with an extended nip including at least one pair of rollers, wherein facing surfaces of the rollers (11, 12) define the extended nip (13) between them and wherein at least one of the rollers is a belt roller (12), wherein the belt is loaded in the nip by a frontal surface of a loading shoe (4) arranged in a radial direction in the belt roller, characterized in that, in order to ensure lubrication between the loading shoe (4) and the belt (121), particularly in boundary lubrication situations, the frontal surface (41) of the loading shoe and/or the inner surface (122) of the belt, which is the facing surface of the loading shoe, is coated.
2. An arrangement as claimed in claim 1, characterized in that at least one of sliding surfaces (41, 122), which delimit a space influenced by a lubrication film between the loading shoe (4) and the belt (121), is coated with dry lubricant (5).
3. An arrangement as claimed in claim 1 and/or 2, characterized in that the frontal surface (41) of the loading shoe (4) is coated with dry lubricant (5).
4. An arrangement as claimed in any one of the preceding claims, characterized in that the dry lubricant (5) is a sprayable or mechanically applicable low-friction dry lubricant.
5. An arrangement as claimed in any one of the preceding claims, characterized in that, in order to substantially reduce friction between the loading shoe (4) and the belt (121), the dry lubricant is a sprayable or mechanically applicable low-friction dry lubricant (5) that dries on surfaces.
6. An arrangement as claimed in claim 4 or 5, characterized in that the dry lubricant (5) is preferably PTFE, MoS2 or graphite, which bonds by means of a bonding agent to a cleansed treated surface once solvent has evaporated.
7. An arrangement as claimed in any one of the preceding claims, characterized in that an object to be treated with the dry lubricant (5), preferably the loading shoe (4), is treated by immersing it completely in a solution.
8. An arrangement as claimed in any one of the preceding claims, characterized in that a sliding pair in a shoe roller (12) is preferably a polyurethane belt (121) and a steel/aluminum/aluminum bronze shoe (4), both of which can be directly coated/finished with the dry lubricant (5).
9. An arrangement as claimed in claim 8, characterized in that the belt (121) is coated by mechanically applying or spraying the dry lubricant (5) in an area contacting the shoe
(4) in a loading situation.
10. An arrangement as claimed in claim 8, characterized in that the coating of the shoe (4) with the dry lubricant (5) as an even coating is provided directly on a smooth clean/cleansed metal surface.
11. An arrangement as claimed in any one of the preceding claims, characterized in that a color different from metal is provided by the dry lubricant (5) in order to examine the evenness of lubrication distribution, any wear of the lubrication and/or problem areas in lubrication in connection with belt replacement.
12. An arrangement as claimed in any one of the preceding claims, characterized in that the coating, preferably the coating of the shoe (4) with the dry lubricant (5) is renewable or a replaceable component.
13. An arrangement as claimed in any one of the preceding claims, characterized in that the dry lubricant (5) finishes the structure of the inner surface of the belt (121) in order to repair or cover defects in the structure of the inner surface of the belt.
14. An arrangement as claimed in any one of the preceding claims, characterized in that the shoe (4) houses a hydrostatic lubrication chamber, which is preferably an integral full-width pocket space that is slightly narrower than nip width.
15. An arrangement as claimed in any one of the preceding claims, characterized in that it is preferable in terms of the permanence of the dry lubricant (5) that bearing surfaces of the shoe (4) do not have narrow necks extending across the nip area in the movement direction of the belt.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI20060480U FI7675U1 (en) | 2006-11-22 | 2006-11-22 | Arrangement in a long bunch press |
| FIU20060480 | 2006-11-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2008062095A1 true WO2008062095A1 (en) | 2008-05-29 |
Family
ID=37482605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FI2007/050585 WO2008062095A1 (en) | 2006-11-22 | 2007-10-31 | An arrangement in a press unit with an extended nip |
Country Status (2)
| Country | Link |
|---|---|
| FI (1) | FI7675U1 (en) |
| WO (1) | WO2008062095A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH709229A1 (en) * | 2014-02-05 | 2015-08-14 | Paul Gerteis | Method and apparatus for external lubrication of press rolls a Walzenkompaktieranlage, as well as the application of the method. |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI103209B (en) * | 1998-01-02 | 1999-05-14 | Metso Paper Inc | Procedure for coating of press or transfer strips and corresponding surface coated strips |
| EP1338696A1 (en) * | 2000-11-10 | 2003-08-27 | Yamauchi Corporation | Belt for papermaking and process for producing papermaking belt |
| DE10233923A1 (en) * | 2002-07-25 | 2004-02-12 | Voith Paper Patent Gmbh | Dewatering press for tissue paper has shoe with lower section fabricated from soft plastic and an upper section fabricated from bronze |
| US20040127126A1 (en) * | 2002-12-30 | 2004-07-01 | Trent Davis | Novel structure for process belt |
| DE102004026411A1 (en) * | 2004-05-29 | 2005-12-22 | Voith Paper Patent Gmbh | Press roller for a web of paper or cardboard or tissue, to extract water and/or polish the surface, has a press shoe with a concave press surface and a decoupling zone to reduce the effects of heat on the press pressure profile |
| US20060234575A1 (en) * | 2005-04-13 | 2006-10-19 | Joseph Salitsky | Thermally sprayed protective coating for industrial and engineered fabrics |
-
2006
- 2006-11-22 FI FI20060480U patent/FI7675U1/en not_active IP Right Cessation
-
2007
- 2007-10-31 WO PCT/FI2007/050585 patent/WO2008062095A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI103209B (en) * | 1998-01-02 | 1999-05-14 | Metso Paper Inc | Procedure for coating of press or transfer strips and corresponding surface coated strips |
| EP1338696A1 (en) * | 2000-11-10 | 2003-08-27 | Yamauchi Corporation | Belt for papermaking and process for producing papermaking belt |
| DE10233923A1 (en) * | 2002-07-25 | 2004-02-12 | Voith Paper Patent Gmbh | Dewatering press for tissue paper has shoe with lower section fabricated from soft plastic and an upper section fabricated from bronze |
| US20040127126A1 (en) * | 2002-12-30 | 2004-07-01 | Trent Davis | Novel structure for process belt |
| DE102004026411A1 (en) * | 2004-05-29 | 2005-12-22 | Voith Paper Patent Gmbh | Press roller for a web of paper or cardboard or tissue, to extract water and/or polish the surface, has a press shoe with a concave press surface and a decoupling zone to reduce the effects of heat on the press pressure profile |
| US20060234575A1 (en) * | 2005-04-13 | 2006-10-19 | Joseph Salitsky | Thermally sprayed protective coating for industrial and engineered fabrics |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH709229A1 (en) * | 2014-02-05 | 2015-08-14 | Paul Gerteis | Method and apparatus for external lubrication of press rolls a Walzenkompaktieranlage, as well as the application of the method. |
Also Published As
| Publication number | Publication date |
|---|---|
| FIU20060480U0 (en) | 2006-11-22 |
| FI7675U1 (en) | 2007-11-26 |
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