GB2194802A - Method for improving the surface of an opener roll - Google Patents

Method for improving the surface of an opener roll Download PDF

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Publication number
GB2194802A
GB2194802A GB8718400A GB8718400A GB2194802A GB 2194802 A GB2194802 A GB 2194802A GB 8718400 A GB8718400 A GB 8718400A GB 8718400 A GB8718400 A GB 8718400A GB 2194802 A GB2194802 A GB 2194802A
Authority
GB
United Kingdom
Prior art keywords
basic body
groove
opener roll
coating
opener
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.)
Granted
Application number
GB8718400A
Other versions
GB8718400D0 (en
GB2194802B (en
Inventor
Hubert Baum
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.)
Reiners & Fuerst
Original Assignee
Reiners & Fuerst
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 Reiners & Fuerst filed Critical Reiners & Fuerst
Publication of GB8718400D0 publication Critical patent/GB8718400D0/en
Publication of GB2194802A publication Critical patent/GB2194802A/en
Application granted granted Critical
Publication of GB2194802B publication Critical patent/GB2194802B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
    • D01H4/30—Arrangements for separating slivers into fibres; Orienting or straightening fibres, e.g. using guide-rolls
    • D01H4/32—Arrangements for separating slivers into fibres; Orienting or straightening fibres, e.g. using guide-rolls using opening rollers
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D7/00—Electroplating characterised by the article coated
    • C25D7/06—Wires; Strips; Foils
    • C25D7/0607—Wires

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Textile Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Inorganic Fibers (AREA)
  • Coating With Molten Metal (AREA)
  • Electroplating Methods And Accessories (AREA)

Abstract

At least one groove of screw thread form is machined into the basic body of the opener roll consisting of light metal, for the subsequent reception of at least one steel saw-tooth wire. Then at least the groove is oxidised, next the oxide skin of the basic body including the oxide skin of the groove is removed and the basic body is provided with a coating of heavy metal or ferro-magnetic metal. Thereupon the saw-tooth wire, at least one, is laid into the groove, of screw thread form and made fast in the groove. Finally the opener roll is cleaned and coated in an electrolyte bath with a firmly adhering layer of amorphous material, which then effects a wear protection and/or corrosion protection of the opener roll.

Description

SPECIFICATION Method for improving the surface of an opener roll The invention relates to a method for improving the surface of an opener roll for a spinning machine which works fibre lap opened into single fibres, consisting of a basic body of light metal and a fitting of steel saw-tooth wire.
To improve the result of opening and for the purpose of increasing durability there is cause to improve the surface of the opener roll, that is for example to make the surface more resistant, harder and more corrosionproof. However difficulties arise here because the two materials of which the opener roll consists are quite different. Differences exist for example with regard to the corrosion resistance, the hardness, the thermal conductivity.
Moreover in the electro-chemical series the materials lie quite far apart. This results in further difficulties due to occasional element formation- before, during and after the improvement or coating of the surface. Blisters occur, the protective coating bursts away and becomes rough.
It is also disadvantageous that the range of improvement possibilities or coating possibilities is limited on account of the different materials.
The invention is based upon the problem of avoiding such disadvantages and indicating a reliable method for improving the surface of the opener roll.
According to the invention at least one groove of screw thread form is machined into the basic body for the subsequent reception of at least one saw-tooth wire, then at least the groove is oxidised, next the oxide skin of the basic body is removed and the basic body is provided with a coating of heavy metal or ferro-magnetic metal, whereupon the sawtooth wire, being at least one, is inserted into the groove of screw thread form, being at least one, and is made fast in the groove, whereupon the opener roll is cleaned and coated with a firmly adhering coating of amorphous substance.
With an improvement of the surface produced in such a way the difficulties as described further above do not arise.
In further development of the invention the opener roll is dipped into an electrolyte bath, for the production of the firmly adhering coating of amorphous material, in which bath ions are conducted to the surface of the opener roll and at the points of impact form a wearresistant and/or corrosion-resistant coating.
It has proved valuable to provide the basic body with a metallic layer of copper, bronze or nickel, before the drawing-on of the sawtooth wire. Thereupon the opener roll can be subjected to a pre-treatment known per se for surface coatings of galvanic or chemical nature, without fear of corrosion between basic body and saw-tooth wire.
1. Method for improving the surface of an opener roll for a spinning machine which works fibre lap opened into individual fibres, consisting of a basic body of light metal and a fitting of steel saw-tooth wire, characterised in that at least one groove of screw thread form for the subsequent reception of at least one saw-tooth wire is machined into the basic body, then at least the groove is oxidised, next the oxide skin of the basic body is re loved and the basic body is provided with a coating of heavy metal or fero-magnetic metal, whereupon the saw-tooth wire, at least one, is laid into the groove of screw thread form, at least one, and is made fast in the groove, whereupon the opener roll is cleaned and coated with a firmly adhering layer of amorphous material.
2. Method according to Claim 1, characterised in that the opener roll is dipped, for the production of the firmly adhering layer of amorphous material, into an eiectrolyte bath in which ions are conducted to the surface of the opener roli, which form a wear-resistant and/or corrosion-resistant coating at the points of impact.
3. A method as claimed in Claim 1, substantially as herein before described.
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (3)

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION Method for improving the surface of an opener roll The invention relates to a method for improving the surface of an opener roll for a spinning machine which works fibre lap opened into single fibres, consisting of a basic body of light metal and a fitting of steel saw-tooth wire. To improve the result of opening and for the purpose of increasing durability there is cause to improve the surface of the opener roll, that is for example to make the surface more resistant, harder and more corrosionproof. However difficulties arise here because the two materials of which the opener roll consists are quite different. Differences exist for example with regard to the corrosion resistance, the hardness, the thermal conductivity. Moreover in the electro-chemical series the materials lie quite far apart. This results in further difficulties due to occasional element formation- before, during and after the improvement or coating of the surface. Blisters occur, the protective coating bursts away and becomes rough. It is also disadvantageous that the range of improvement possibilities or coating possibilities is limited on account of the different materials. The invention is based upon the problem of avoiding such disadvantages and indicating a reliable method for improving the surface of the opener roll. According to the invention at least one groove of screw thread form is machined into the basic body for the subsequent reception of at least one saw-tooth wire, then at least the groove is oxidised, next the oxide skin of the basic body is removed and the basic body is provided with a coating of heavy metal or ferro-magnetic metal, whereupon the sawtooth wire, being at least one, is inserted into the groove of screw thread form, being at least one, and is made fast in the groove, whereupon the opener roll is cleaned and coated with a firmly adhering coating of amorphous substance. With an improvement of the surface produced in such a way the difficulties as described further above do not arise. In further development of the invention the opener roll is dipped into an electrolyte bath, for the production of the firmly adhering coating of amorphous material, in which bath ions are conducted to the surface of the opener roll and at the points of impact form a wearresistant and/or corrosion-resistant coating. It has proved valuable to provide the basic body with a metallic layer of copper, bronze or nickel, before the drawing-on of the sawtooth wire. Thereupon the opener roll can be subjected to a pre-treatment known per se for surface coatings of galvanic or chemical nature, without fear of corrosion between basic body and saw-tooth wire. CLAIMS
1. Method for improving the surface of an opener roll for a spinning machine which works fibre lap opened into individual fibres, consisting of a basic body of light metal and a fitting of steel saw-tooth wire, characterised in that at least one groove of screw thread form for the subsequent reception of at least one saw-tooth wire is machined into the basic body, then at least the groove is oxidised, next the oxide skin of the basic body is re loved and the basic body is provided with a coating of heavy metal or fero-magnetic metal, whereupon the saw-tooth wire, at least one, is laid into the groove of screw thread form, at least one, and is made fast in the groove, whereupon the opener roll is cleaned and coated with a firmly adhering layer of amorphous material.
2. Method according to Claim 1, characterised in that the opener roll is dipped, for the production of the firmly adhering layer of amorphous material, into an eiectrolyte bath in which ions are conducted to the surface of the opener roli, which form a wear-resistant and/or corrosion-resistant coating at the points of impact.
3. A method as claimed in Claim 1, substantially as herein before described.
GB8718400A 1986-08-05 1987-08-04 Method for improving the surface of an opener roll Expired - Fee Related GB2194802B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19863626428 DE3626428A1 (en) 1986-08-05 1986-08-05 METHOD FOR COMPENSATING THE SURFACE OF A OPENING ROLLER

Publications (3)

Publication Number Publication Date
GB8718400D0 GB8718400D0 (en) 1987-09-09
GB2194802A true GB2194802A (en) 1988-03-16
GB2194802B GB2194802B (en) 1990-01-31

Family

ID=6306695

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8718400A Expired - Fee Related GB2194802B (en) 1986-08-05 1987-08-04 Method for improving the surface of an opener roll

Country Status (2)

Country Link
DE (1) DE3626428A1 (en)
GB (1) GB2194802B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT404034B (en) * 1992-10-22 1998-07-27 Boehler Ybbstalwerke SCRAPER TAPE FOR WINDING CARD WHEELS

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4101680A1 (en) * 1991-01-22 1992-07-23 Winfried Heinzel Sliver loosening roller - is cleaned and coated with wear resistant layer and wear and corrosion resistant layer

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD81866A (en) *
JPS5210935B1 (en) * 1971-03-09 1977-03-28
GB1387627A (en) * 1971-05-03 1975-03-19 Platt International Ltd Opening rollers in open-end textile apparatus
US4044427A (en) * 1976-05-21 1977-08-30 Rogers Corporation Comber roll
CH614467A5 (en) * 1977-03-01 1979-11-30 Burckhardt Christoph Co

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT404034B (en) * 1992-10-22 1998-07-27 Boehler Ybbstalwerke SCRAPER TAPE FOR WINDING CARD WHEELS

Also Published As

Publication number Publication date
GB8718400D0 (en) 1987-09-09
DE3626428A1 (en) 1988-02-11
GB2194802B (en) 1990-01-31

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PCNP Patent ceased through non-payment of renewal fee