WO2011095371A1 - VERSCHLEIßSCHUTZHÜLSE - Google Patents
VERSCHLEIßSCHUTZHÜLSE Download PDFInfo
- Publication number
- WO2011095371A1 WO2011095371A1 PCT/EP2011/050207 EP2011050207W WO2011095371A1 WO 2011095371 A1 WO2011095371 A1 WO 2011095371A1 EP 2011050207 W EP2011050207 W EP 2011050207W WO 2011095371 A1 WO2011095371 A1 WO 2011095371A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- flange
- sleeve
- predetermined breaking
- flange portion
- wear
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/324—Arrangements for lubrication or cooling of the sealing itself
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3248—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings provided with casings or supports
- F16J15/3252—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings provided with casings or supports with rigid casings or supports
- F16J15/3256—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings provided with casings or supports with rigid casings or supports comprising two casing or support elements, one attached to each surface, e.g. cartridge or cassette seals
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3248—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings provided with casings or supports
- F16J15/3252—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings provided with casings or supports with rigid casings or supports
- F16J15/3256—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings provided with casings or supports with rigid casings or supports comprising two casing or support elements, one attached to each surface, e.g. cartridge or cassette seals
- F16J15/3264—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings provided with casings or supports with rigid casings or supports comprising two casing or support elements, one attached to each surface, e.g. cartridge or cassette seals the elements being separable from each other
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3268—Mounting of sealing rings
- F16J15/3272—Mounting of sealing rings the rings having a break or opening, e.g. to enable mounting on a shaft otherwise than from a shaft end
Definitions
- the invention relates to a wear sleeve comprising an axially extending sleeve portion having a cylindrical seal sliding surface, a flange portion extending radially away from the sleeve portion, and a predetermined breaking portion connecting the sleeve portion to the flange portion for facilitating separation of the flange portion from the sleeve portion.
- JP 2000-337392 describes a metal sleeve which is to be applied to a lateral surface of a shaft and has a cylindrical portion and a flange.
- the outer surface is hardened so that it has wear-resistant properties.
- the metal sleeve is raised by striking the flange on the shaft. Between the cylindrical portion and the flange extends a circumferential, groove-shaped predetermined breaking point, so that the flange can be removed after mounting the metal sleeve on the shaft and only the cylindrical portion having the hardened surface remains on the shaft.
- the object of the invention is to provide a wear protection sleeve, wherein the solubility of a flange portion is improved by a sleeve portion.
- a wear protection sleeve having an axially extending sleeve portion with a cylindrical seal sliding surface, a flange radially extending away from the sleeve portion. portion and a the sleeve portion with the flange portion connecting predetermined breaking portion for facilitating the separation of the flange portion of the sleeve portion, further comprising a flange portion provided on the Anriss founded for facilitating the radial tearing of the flange portion to the predetermined breaking portion.
- Wear sleeves can be made of thin-walled and / or corrosion-resistant steel and are used, for example, either as part of a repair of run-in or damaged mating surfaces or as original equipment of waves.
- the wear sleeves have at least one seal sliding surface.
- the wear protection sleeves can have at least one outwardly pointing sealing sliding surface.
- the least one sealing sliding surface is formed by the lateral surface of the sleeve portion.
- the wear protection sleeves may have a radially oriented, in particular radially outwardly aligned flange portion which serves for mounting the wear sleeve.
- the wear sleeve can be mounted in particular with coverage and especially in a cold state on a shaft.
- a mounting can be done by blows, in particular by hammer blows on a striking cap.
- the impact cap may be formed, for example, as a simple piece of pipe, which rests against the flange and is driven with the flange of the wear sleeve ahead on a shaft end.
- a groove is introduced as a predetermined breaking point and / or as an axial boundary of the running surface between the sleeve portion and the flange or flange portion of the wear sleeve.
- the wear protection sleeve has a Anriss adopted provided on the flange portion for facilitating the radial tearing of the flange portion up to the predetermined breaking portion, the flange portion of the sleeve portion can be solved better. Thus, the risk of damage to the seal running surface can be reduced.
- the Anriss worn can be formed by one or more recesses, wall thickness reductions and / or material changes in the wear sleeve and the flange portion.
- the one or more recesses, wall thickness reductions and / or material changes may be provided on both surfaces of the flange portion, alternatively only on the surface facing the sleeve portion or only on the opposite, the sleeve portion facing away from the surface.
- the open after tearing flange can then be deducted along the predetermined breaking section of the sleeve portion of the wear sleeve.
- the flanged ring opened after the tearing can be peeled off, as it were, from the sleeve section of the wear protection sleeve.
- the tear line can be understood as a path along which the flange ring is intended to tear. This tear line or this path can guide the tearing of the flange in a desired direction by a predetermined shape or given trajectory. In the simplest case, the tear line or the path can follow along a straight path extending in the radial direction from the peripheral edge of the
- the tear line or the path can, for example, also lead along a helical path from the peripheral edge of the flange section to the predetermined breaking section.
- two or more tear lines or paths may also be provided on the flange section. A plurality of tear lines or paths can be distributed over the circumference of the flange portion distributed at equal intervals.
- the Anriss Marie may have a wall thickness-reduced path in the flange portion which extends between a peripheral edge and the predetermined breaking portion, in particular continuously from a peripheral edge of the flange portion to the predetermined breaking portion in the radial direction.
- the wall thickness-reduced path can be interrupted without interruption, i. run continuously from a peripheral edge of the flange portion to the predetermined breaking portion.
- the wall thickness-reduced path may extend in another embodiment, only over part of the barrel from peripheral edge to predetermined breaking section. It is also possible for a plurality of partial paths to extend in succession and at a distance from each other between the peripheral edge and the predetermined breaking section in the manner of a seam or perforation.
- the wall thickness-reduced path can be formed by a groove introduced into the flange section.
- at least one second groove can be provided according to the invention, which is introduced transversely over the mounting flange into the circumferential groove of the predetermined breaking point.
- the flange can be torn defined and this crack continues until be guided in the circumferential groove of the predetermined breaking point ie the predetermined breaking section.
- the groove or the plurality of grooves can be introduced in the manufacture of wear protection sleeves in the flange or made with this together.
- the groove or the plurality of grooves can be formed in the same manner as the predetermined breaking section and / or be prepared in an analogous manner to the predetermined breaking section.
- the groove may be a groove produced by embossing or ablation, in particular by ablation using a laser processing tool.
- the wear protection sleeve is first produced with a constant and / or uniform wall thickness of the flange portion and then the one or more wall thickness reduced paths or the one or more grooves forming or material removal introduced into the surface of the flange.
- the groove or the grooves can also take place simultaneously with the molding of the mounting flange in the forming tool, so that a separate process step is not required.
- the depth of the grooves in both cases may be constant or variable over their course.
- the depth of the groove may be, for example, half the thickness of the wall thickness of the flange portion.
- the depth of the groove in the flange portion may correspond to the depth of the predetermined breaking portion, i. correspond to the circumferential groove between the flange portion and sleeve portion.
- the Anriss worn may have a recess in the flange portion.
- Several wall-diminished paths and recesses may alternate, in particular alternating in a perforation-like manner.
- a single recess may be combined with a single wall thickness reduced path.
- a single recess may be formed on a peripheral edge of the flange portion which extends over only a portion of the flange height.
- a wall thickness reduced path can connect, which connects the recess with the predetermined breaking section.
- a wall thickness-reduced path may be introduced, which extends over only a part of the flange height.
- a recess, in particular a slot-shaped recess, which connects the wall thickness-reduced path in the region of the peripheral edge to the predetermined breaking section, can follow this wall-thickness-reduced path.
- the recess may be a radially extending slot, in particular open-edged slot in the flange portion.
- the slot may extend in a central region of the flange portion.
- the slot may extend in particular in a central region of the flange section up to the predetermined breaking section.
- the slot may be delimited by a closed wall portion of the flange of the peripheral edge of the flange.
- the slot may, in an open-edged formation from the peripheral edge of the flange, proceeding continuously i. extend uninterrupted until the predetermined breaking section.
- the open-edged slot is formed in this respect by a circumferential cut in the flange.
- the recess may be a notch introduced in the region of a peripheral edge of the flange section.
- the notch may be in particular a U-shaped or V-shaped or wedge-shaped recess.
- the pointed end of the wedge-shaped recess forms a notch base.
- the notch may have a notch base, followed by a leading to the predetermined breaking section wall thickness-reduced path in the flange portion.
- the notch may have a notch base, which is followed by a recess leading to the predetermined breaking section, in particular a slot in the flange section.
- the notch ends or the notch root is located in a central peripheral region of the flange, so that the notch base does not extend to the predetermined breaking section.
- the notch may have a reaching to the predetermined breaking portion Kerbground. In this case, the notch so far forms an open-edge wedge-shaped or V-shaped slot in the form of a circumferential incision in the flange, which is guided to the predetermined breaking section.
- FIG. 1 is a perspective view of a first embodiment of a wear sleeve with a Anriss pain
- FIG. 2 is a partial sectional view of the first embodiment by the Anriss worn according to the first embodiment of FIG. 1,
- FIG. 3 is an enlarged partial perspective view of the Anriss raised according to the first embodiment of FIG. 1,
- the wear protection sleeve 1 shown in FIG. 1 has a sleeve section 3 with a cylindrical sealing sliding surface 5.
- the sleeve section 3 or its axis of symmetry 7 extends in an axial direction.
- a flange portion 9 extends from the sleeve portion 3 radially outward.
- the sleeve portion 3 is connected to the flange portion 9 via a predetermined breaking portion 1 1.
- the predetermined breaking portion 1 1 is designed to facilitate a separation of the flange portion 9 of the sleeve portion 3.
- the predetermined breaking section 1 1 is formed in the illustrated embodiment as a circumferential on the outer surface annular groove 1 la.
- the wear protection sleeve 1 also has a clamping device 13 provided on the flange section 9 on.
- the Anriss shark 13 is formed to facilitate a radial tearing of the flange portion 9 to the predetermined breaking portion 1 1.
- the embodiment of the tearing device 13 shown in FIG. 1 forms a wall-diminished path 15 in the flange section 9.
- the path 15 extends between the circumferential edge 17 and the predetermined breaking section 1.
- the tearing device 13 or the path 15 is continuous Peripheral edge 17 of the flange portion 9 formed to the predetermined breaking portion 1 1.
- the path 15 extends in the radial direction from outside to inside. The path 15 opens into the predetermined breaking section 1 1.
- the tearing device 13 or the wall-thickness-reduced path 15 is formed by a groove 19 introduced into the flange section 9.
- the groove 19 is shown in Fig. 2 in a partial sectional view. 2 shows a part of the sleeve portion 3 in section with the designed as an annular groove 1 la breaking portion 1 1.
- the introduced into the flange 9 as Anriss worn 13 groove 19 has a depth Tl, the depth T2 of the predetermined breaking portion 1 1 and the annular groove 1 la in the surface 21 of the wear sleeve 1 corresponds.
- the surface 21 forms the sealing sliding surface 5 in this configuration.
- the groove 19 extends from the peripheral edge 17 of the flange section 9 to the predetermined breaking section 11 or into the annular groove 11a.
- FIG. 3 the embodiment shown in FIG. 2 is shown again in an enlarged, perspective partial view.
- FIG. 4 a shows a variant of the embodiment according to FIGS. 1 to 3.
- the tearing device 13 according to FIG. 4 a has a cutout 23.
- the recess 23 is formed in this exemplary variant as a radially extending slot 25.
- the slot 25 is open edge ie the peripheral edge 17 is through the Slot 25 interrupted.
- the slot 25 can run to the annular groove I Ia out.
- the path 15 is formed as a recess 23 to the annular groove 1 la.
- the slot 25 can also be formed over a partial distance, for example, half the distance of the path 15 as a recess 23 and then pass into a groove 19 analogous to the embodiment of Figures 1 to 3.
- FIG. 4b shows another variant of the embodiment according to FIG. 4a.
- the Anriss worn 13 of FIG. 4b has as a recess 23 in the region of the peripheral edge 17 of the flange 9 introduced notch 27.
- the notch 27 has a notch base 29, to which a to the predetermined breaking section 1 1, or the annular groove 1 la leading wall thickness-reduced path 15 and / or a recess 23, in particular a slot 25 connects.
- the notch base 29 may be down to the predetermined breaking portion 1 1, or down to the annular groove I Ia.
- FIG. 4c shows a further variant of the embodiments according to FIGS. 4a and 4b.
- the Anriss worn 13 of FIG. 4c has a plurality of recesses 23 which are perforation-like spaced from each other.
- the recesses 23 need not necessarily be formed as slots, but may alternatively be formed, for example, as circular holes. Instead of one, as shown in Fig. 4c, open-edged circumferential edge 17 nearest the edge recess 31, a closed recesses 23 may be provided in the vicinity of a closed peripheral edge 17.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pressure Vessels And Lids Thereof (AREA)
- Food-Manufacturing Devices (AREA)
- Insulators (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
- Sealing Devices (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/576,526 US9556959B2 (en) | 2010-02-05 | 2011-01-10 | Wear-protective sleeve |
IN7371CHN2012 IN2012CN07371A (de) | 2010-02-05 | 2011-01-10 | |
CN201180015714.4A CN102812272B (zh) | 2010-02-05 | 2011-01-10 | 耐磨套筒 |
CA2789041A CA2789041A1 (en) | 2010-02-05 | 2011-01-10 | Wear-protective sleeve |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010007010A DE102010007010B4 (de) | 2010-02-05 | 2010-02-05 | Verschleißschutzhülse |
DE102010007010.6 | 2010-02-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2011095371A1 true WO2011095371A1 (de) | 2011-08-11 |
Family
ID=43646312
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2011/050207 WO2011095371A1 (de) | 2010-02-05 | 2011-01-10 | VERSCHLEIßSCHUTZHÜLSE |
Country Status (6)
Country | Link |
---|---|
US (1) | US9556959B2 (de) |
CN (1) | CN102812272B (de) |
CA (1) | CA2789041A1 (de) |
DE (1) | DE102010007010B4 (de) |
IN (1) | IN2012CN07371A (de) |
WO (1) | WO2011095371A1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20180023366A1 (en) * | 2016-01-06 | 2018-01-25 | Baker Hughes, A Ge Company, Llc | Slotted Backup Ring Assembly |
CN108995021A (zh) * | 2018-08-31 | 2018-12-14 | 中国二十二冶集团有限公司 | 烟囱筒首帽花模具及其使用方法 |
US11253963B1 (en) | 2020-08-17 | 2022-02-22 | Raytheon Company | Separable component assembly having reduced seal stiction |
Citations (5)
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US3332536A (en) * | 1966-06-13 | 1967-07-25 | Rex Chainbelt Inc | Rotating shaft seal |
JPH04123253U (ja) * | 1991-04-09 | 1992-11-06 | フジ精工株式会社 | シヤフトスリーブ |
JP2000337392A (ja) | 1999-05-31 | 2000-12-05 | Fuji Seiko Kk | 回転軸保護スリーブ |
DE10201013A1 (de) * | 2002-01-11 | 2003-07-24 | Vr Dichtungen Gmbh | Geteilte Radialwellendichtung, deren Herstellung und Verwendung |
WO2007146381A2 (en) * | 2006-06-15 | 2007-12-21 | E. I. Du Pont De Nemours And Company | A method for compression moulding splitted rings |
Family Cites Families (33)
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US3101954A (en) * | 1960-06-15 | 1963-08-27 | Int Harvester Co | Self adjusting seal |
US3391940A (en) * | 1966-01-10 | 1968-07-09 | Federal Mogul Corp | Wear sleeve having a gasketing flange and a tapered wall for spacing a cylindrical wear sleeve portion from a rotary member and engine installation incorporating said wear sleeve |
GB1475312A (en) * | 1973-10-12 | 1977-06-01 | Angus Co Ltd G | Piston or like sealing or packing |
US3960243A (en) * | 1975-05-07 | 1976-06-01 | Litton Systems, Inc. | Adapter bushing for lubrication system |
US4253675A (en) * | 1979-11-01 | 1981-03-03 | Bellofram Corporation | Improvements of sealed shafts |
US4516481A (en) * | 1981-02-06 | 1985-05-14 | Robert Geffroy | Piston and piston rings set |
DE3204989C2 (de) * | 1982-02-12 | 1983-12-15 | Fa. Carl Freudenberg, 6940 Weinheim | Kassettendichtung |
US4643436A (en) * | 1984-03-30 | 1987-02-17 | Chicago Rawhide Mfg. Co. | Fluid seals with unitary wear sleeve elements |
US5188214A (en) * | 1988-04-28 | 1993-02-23 | Rexnord Corporation | End seal for idler roller |
AU2521692A (en) * | 1991-09-30 | 1993-04-01 | Skf Usa Inc. | Pumping feature on wear sleeve for unitized seal |
ES1028707U (es) * | 1993-09-03 | 1995-03-01 | Novembal Sa | Tapon de rosca con anillo de inviolabilidad. |
JPH0811908A (ja) * | 1994-06-28 | 1996-01-16 | Fuji Seal Co Ltd | 天板付キャップシール |
JP3881724B2 (ja) * | 1996-08-09 | 2007-02-14 | サントリー株式会社 | キャップシール |
US6170833B1 (en) * | 1997-10-24 | 2001-01-09 | Stemco Inc | Hub seal with machinable thrust ring and lay-down sealing lip |
US5997005A (en) * | 1997-10-24 | 1999-12-07 | Stemco Inc | Hub seal with machinable thrust ring |
US6139027A (en) * | 1998-01-05 | 2000-10-31 | Biekx; Ron O. | CV joint boot with sealing sleeves |
US6270082B1 (en) * | 1999-09-14 | 2001-08-07 | Dana Corporation | Coextruded valve stem seal |
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US6354598B1 (en) * | 2000-02-15 | 2002-03-12 | Skf Usa Inc. | Oil seal including wear sleeve with hydrodynamic pattern |
JP2002255204A (ja) * | 2001-02-23 | 2002-09-11 | Hokkai Can Co Ltd | シュリンクフィルム |
DE20321639U1 (de) * | 2003-06-03 | 2008-09-18 | Carl Freudenberg Kg | Montageschutzring |
JP2007520672A (ja) * | 2004-02-06 | 2007-07-26 | コダン・テク・アクティーゼルスカブ | 弾性封止スリーブ |
US7314219B1 (en) * | 2005-01-10 | 2008-01-01 | Torque-Traction Technologies, Llc. | Shaft seal assembly |
US20060186607A1 (en) * | 2005-02-18 | 2006-08-24 | Min-Fang Shih | Seal boot |
DE102005028314A1 (de) * | 2005-06-18 | 2006-12-28 | Daimlerchrysler Ag | Verschleißschutzmaßnahme für eine Achslagerdichtung eines Fahrzeuges |
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-
2010
- 2010-02-05 DE DE102010007010A patent/DE102010007010B4/de not_active Expired - Fee Related
-
2011
- 2011-01-10 IN IN7371CHN2012 patent/IN2012CN07371A/en unknown
- 2011-01-10 CN CN201180015714.4A patent/CN102812272B/zh not_active Expired - Fee Related
- 2011-01-10 WO PCT/EP2011/050207 patent/WO2011095371A1/de active Application Filing
- 2011-01-10 US US13/576,526 patent/US9556959B2/en active Active
- 2011-01-10 CA CA2789041A patent/CA2789041A1/en not_active Abandoned
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3332536A (en) * | 1966-06-13 | 1967-07-25 | Rex Chainbelt Inc | Rotating shaft seal |
JPH04123253U (ja) * | 1991-04-09 | 1992-11-06 | フジ精工株式会社 | シヤフトスリーブ |
JP2000337392A (ja) | 1999-05-31 | 2000-12-05 | Fuji Seiko Kk | 回転軸保護スリーブ |
DE10201013A1 (de) * | 2002-01-11 | 2003-07-24 | Vr Dichtungen Gmbh | Geteilte Radialwellendichtung, deren Herstellung und Verwendung |
WO2007146381A2 (en) * | 2006-06-15 | 2007-12-21 | E. I. Du Pont De Nemours And Company | A method for compression moulding splitted rings |
Also Published As
Publication number | Publication date |
---|---|
US20130200576A1 (en) | 2013-08-08 |
DE102010007010A1 (de) | 2011-08-11 |
CN102812272A (zh) | 2012-12-05 |
CA2789041A1 (en) | 2011-08-11 |
CN102812272B (zh) | 2017-03-15 |
DE102010007010B4 (de) | 2011-09-01 |
US9556959B2 (en) | 2017-01-31 |
IN2012CN07371A (de) | 2015-08-28 |
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