EP1908855B1 - Duse pour le traitement de textile - Google Patents

Duse pour le traitement de textile Download PDF

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Publication number
EP1908855B1
EP1908855B1 EP06021000A EP06021000A EP1908855B1 EP 1908855 B1 EP1908855 B1 EP 1908855B1 EP 06021000 A EP06021000 A EP 06021000A EP 06021000 A EP06021000 A EP 06021000A EP 1908855 B1 EP1908855 B1 EP 1908855B1
Authority
EP
European Patent Office
Prior art keywords
nozzle
steel
strip according
nozzle strip
hrc
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.)
Not-in-force
Application number
EP06021000A
Other languages
German (de)
English (en)
Other versions
EP1908855A1 (fr
Inventor
Günther Büchle
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.)
Groz Beckert KG
Original Assignee
Groz Beckert KG
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 Groz Beckert KG filed Critical Groz Beckert KG
Priority to DE502006003337T priority Critical patent/DE502006003337D1/de
Priority to ES06021000T priority patent/ES2322185T3/es
Priority to EP06021000A priority patent/EP1908855B1/fr
Priority to AT06021000T priority patent/ATE427365T1/de
Publication of EP1908855A1 publication Critical patent/EP1908855A1/fr
Application granted granted Critical
Publication of EP1908855B1 publication Critical patent/EP1908855B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
    • B05B1/20—Perforated pipes or troughs, e.g. spray booms; Outlet elements therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H18/00—Needling machines
    • D04H18/04—Needling machines with water jets

Definitions

  • the invention relates to a nozzle strip for a nozzle line for textile processing, having the features of the preamble of patent claim 1.
  • Such nozzle strips are subject to the corrosive attack of the water. They must be up to date and are therefore usually made of stainless steel. This has a hardness of less than 46 HRC, which results in a limited stability. Over time, the geometry of the nozzle orifices will change, reducing the quality of the emitted water jets. It can then happen that the jet of water atomises into droplets before it hits the fleece. The fleece is then no longer solidified as desired.
  • the steel used is curable and contains martensite that may have been produced by curing.
  • the steel has a strength above 46 HRC, for example between 52 to 60 HRC.
  • the nozzle openings can be introduced before or after hardening in the metal strip. In particular, it is possible to produce the nozzle openings in the desired high accuracy using standard machining methods.
  • the martensitic hardened steel allows the nozzle strip to achieve a longer service life than is possible with stainless steel nozzle strips.
  • the hardened steel is preferably a high alloy steel which, in addition, may contain carbon, as is preferred.
  • the steel grade X20Cr13 is used. This steel can be both hardened and made to resist corrosion by heat treatment. In order for the nozzle openings, in particular at its inflow side retain their shape. This ensures long-term high beam quality.
  • FIG. 1 1 illustrates a nozzle bar 1 for producing a curtain consisting of individual sharp water jets 2 for solidifying a textile nonwoven fabric 3.
  • the nonwoven fabric 3 is held on a base 4 so that it is struck by the water jets 2 when it is mounted under the nozzle bar 1.
  • the water jets 2 penetrate into the web 3 and devour and confuse the individual fibers together.
  • the nozzle bar 1 includes a nozzle strip 5 made of sheet metal, which is provided with a row or rows of nozzle openings 6.
  • all the nozzle openings 6 are arranged on a straight line, which extends over the entire length of the approximately 25 mm wide and up to 7 m long nozzle strip 5. It is also possible for the nozzle openings 6 to extend only to a partial region, the perforated region, of a nozzle strip 5.
  • the diameters of the individual holes are in the range of 80 ⁇ m to 200 ⁇ m. For example, the hole density is 40 holes per inch (16 holes per centimeter). If several rows of nozzle openings are present, the row spacing is, for example, between 0.8 mm and 1.2 mm.
  • the hole diameters are uniform except for small tolerances of, for example, less than 2 ⁇ m along the nozzle strip 5.
  • FIG. 3 illustrates a longitudinal section through the nozzle strip 5.
  • the nozzle openings 6 are in the embodiment after FIG. 3 equal to each other.
  • nozzle orifices 6 of different shape and size can be used. They have a cylindrical section 7 on their inflow side and a funnel-shaped, for example conical section 8 on their outflow side. The transitions between the sections 7, 8 can be smoothed and thus edge-free.
  • the nozzle strip 5 consists of a martensitic hardened steel, for example X20Cr13.
  • This steel is martensitic curable and largely corrosion resistant. The corrosion resistance is only insignificantly influenced by the heat treatment. It remains.
  • the martensite structure is in the micrograph under suitable magnification, e.g. 1: 200, recognizable.
  • the steel preferably contains little or no austenitic species, e.g. Nickel. In the edge area or near-surface area, the martensite structure is enriched with nitrogen.
  • the nozzle bar 1 During operation of the nozzle bar 1 are at the inlet side of the nozzle strip 5, followed by the cylindrical portions 7 of the nozzle openings 6, water at a pressure between 30 bar and 200 bar or in a few cases, more than 200 bar.
  • water In the cylindrical sections 7 of the nozzle openings 6 thereby water jets that emerge freely from the funnel-shaped sections 8 and shoot a distance of a few millimeters to a few centimeters through the air, without falling into individual droplets.
  • the fleece 3 Before spraying the water jets they hit the fleece 3 and cause the solidification there.
  • the quality of the generated water jet and its effect on the rearrangement and turbulence of the fibers is essentially dependent on the accuracy of the geometry of the nozzle openings 6.
  • the geometry of the nozzle openings 6 is not significantly deteriorated even after prolonged operation of the nozzle beam 1, so that the beam quality is maintained over a long time.
  • the cylindrical remains Geometry of the cylindrical sections long largely preserved.
  • the water may rest under pressure on the nozzle strip 5 on the side of the nozzle strip 5, which has the funnel-shaped sections 8. These then form inlet openings for the water which is bundled in the further course through the cylindrical sections 7. Otherwise, a nozzle strip inserted in this way has the same effect as described above,
  • a nozzle beam for hydroentanglement of a nonwoven 3 has at its side facing the nonwoven 3 an opening into which a nozzle strip 5 is inserted. This has at least one row of nozzle openings 6, are generated by the parallel to each other, directed onto the nonwoven 3 water jets 2, which serve for web bonding.
  • the nozzle strip 5 is formed of a martensitic hardened steel, the surface having a high corrosion resistance.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Textile Engineering (AREA)
  • Nonwoven Fabrics (AREA)
  • Treatment Of Fiber Materials (AREA)

Claims (9)

  1. Bande de gicleurs (5) pour une rampe de gicleurs qui est destinée au traitement de textiles, notamment à la production de feutre par compactage à l'eau, et qui comprend une partie de bande en tôle percée d'un certain nombre d'orifices de gicleur (6), caractérisée en ce que la partie de bande en tôle est en acier martensitique durci, de dureté supérieure à 46 HRC, et présente en zone marginale de l'azote.
  2. Bande de gicleurs selon la revendication 1, caractérisée en ce que l'acier est durci par traitement thermique.
  3. Bande de gicleurs selon la revendication 1, caractérisée en ce que l'acier durci présente une dureté dépassant 53 HRC.
  4. Bande de gicleurs selon la revendication 1, caractérisée en ce que l'acier durci présente une dureté dépassant 50 HRC.
  5. Bande de gicleurs selon la revendication 1, caractérisée en ce que l'acier est fortement allié.
  6. Bande de gicleurs selon la revendication 1, caractérisée en ce que l'acier est à teneur en carbone.
  7. Bande de gicleurs selon la revendication 1, caractérisée en ce que l'acier est de l'acier X20Cr13.
  8. Bande de gicleurs selon la revendication 1, caractérisée en ce que l'acier présente une structure en partie austénitique et en plus martensitique.
  9. Bande de gicleurs selon la revendication 1, caractérisée en ce que les orifices de gicleur (6) présentent du côté entrée une section cylindrique (7) suivie d'une section (8) en forme d'entonnoir.
EP06021000A 2006-10-06 2006-10-06 Duse pour le traitement de textile Not-in-force EP1908855B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE502006003337T DE502006003337D1 (de) 2006-10-06 2006-10-06 Düsenstreifen zur Textilbearbeitung
ES06021000T ES2322185T3 (es) 2006-10-06 2006-10-06 Tira de toberas para el tratamiento de textil.
EP06021000A EP1908855B1 (fr) 2006-10-06 2006-10-06 Duse pour le traitement de textile
AT06021000T ATE427365T1 (de) 2006-10-06 2006-10-06 Dusenstreifen zur textilbearbeitung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06021000A EP1908855B1 (fr) 2006-10-06 2006-10-06 Duse pour le traitement de textile

Publications (2)

Publication Number Publication Date
EP1908855A1 EP1908855A1 (fr) 2008-04-09
EP1908855B1 true EP1908855B1 (fr) 2009-04-01

Family

ID=37801468

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06021000A Not-in-force EP1908855B1 (fr) 2006-10-06 2006-10-06 Duse pour le traitement de textile

Country Status (4)

Country Link
EP (1) EP1908855B1 (fr)
AT (1) ATE427365T1 (fr)
DE (1) DE502006003337D1 (fr)
ES (1) ES2322185T3 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013110787A1 (de) 2013-09-30 2015-04-02 Sig Technology Ag Vorrichtung zur Veränderung der Strahlform von fließfähigen Produkten
DE102013110774A1 (de) 2013-09-30 2015-04-02 Sig Technology Ag Vorrichtung zur Veränderung der Strahlform von fließfähigen Produkten
DE102014104480A1 (de) 2014-03-31 2015-10-01 Sig Technology Ag Vorrichtung zur Veränderung der Strahlform von fließfähigen Produkten

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4212966C2 (de) * 1992-04-18 1995-07-13 Ver Schmiedewerke Gmbh Verwendung eines martensitischen Chrom-Stahls
DE19923591A1 (de) * 1999-05-21 2000-11-23 Fleissner Maschf Gmbh Co Vorrichtung mit einem Düsenbalken zur Erzeugung von Flüssigkeitsstrahlen zur Strahlbeaufschlagung der Fasern einer Warenbahn
DE19941729A1 (de) * 1999-09-01 2001-03-08 Fleissner Maschf Gmbh Co Düsenkörper zur Erzeugung von feinsten Flüssigkeitsstrahlen z. B. an Wasservernadelungseinrichtungen
JP3977258B2 (ja) * 2001-02-14 2007-09-19 フライスナー ゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニー マシーネンファブリーク 製品ウェブの繊維をハイドロダイナミックに交絡させるノズルビームに設けられたノズルストリップのための閉鎖ユニット
JP4337268B2 (ja) * 2001-02-27 2009-09-30 大同特殊鋼株式会社 耐食性に優れた高硬度マルテンサイト系ステンレス鋼
FR2836074B1 (fr) * 2002-02-19 2004-12-24 Rieter Perfojet Dispositif de projection de jets d'eau a porte-joint amovible

Also Published As

Publication number Publication date
ATE427365T1 (de) 2009-04-15
ES2322185T3 (es) 2009-06-17
EP1908855A1 (fr) 2008-04-09
DE502006003337D1 (de) 2009-05-14

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