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EP0347896B1 - Ring für Spinnmaschinen - Google Patents

Ring für Spinnmaschinen Download PDF

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Publication number
EP0347896B1
EP0347896B1 EP89111339A EP89111339A EP0347896B1 EP 0347896 B1 EP0347896 B1 EP 0347896B1 EP 89111339 A EP89111339 A EP 89111339A EP 89111339 A EP89111339 A EP 89111339A EP 0347896 B1 EP0347896 B1 EP 0347896B1
Authority
EP
European Patent Office
Prior art keywords
ring
plated layer
fine particles
composite plated
hard fine
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
EP89111339A
Other languages
English (en)
French (fr)
Other versions
EP0347896A1 (de
Inventor
Shigeru Kibe
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.)
Kanai Juyo Kogyo Co Ltd
Original Assignee
Kanai Juyo Kogyo Co Ltd
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 Kanai Juyo Kogyo Co Ltd filed Critical Kanai Juyo Kogyo Co Ltd
Publication of EP0347896A1 publication Critical patent/EP0347896A1/de
Application granted granted Critical
Publication of EP0347896B1 publication Critical patent/EP0347896B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H7/00—Spinning or twisting arrangements
    • D01H7/02—Spinning or twisting arrangements for imparting permanent twist
    • D01H7/52—Ring-and-traveller arrangements
    • D01H7/60—Rings or travellers; Manufacture thereof not otherwise provided for ; Cleaning means for rings
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H7/00—Spinning or twisting arrangements
    • D01H7/02—Spinning or twisting arrangements for imparting permanent twist
    • D01H7/52—Ring-and-traveller arrangements
    • D01H7/60—Rings or travellers; Manufacture thereof not otherwise provided for ; Cleaning means for rings
    • D01H7/602—Rings

Definitions

  • the present invention relates to a ring for use in a spinning machine according to the limitations set out in the preamble part of the main claim.
  • low carbon steel is used in a ring for spinning machinery, and carburizing hardening treatment is applied thereon.
  • a ring is used with a fine spinning machine having a spindle revolution of 20,000 r.p.m. or more, there have been problems that the friction resistance between the ring and the traveller increases and the frictional heat rapidly increases to bring about the baking and blow off the traveller in an early period, to make continuous operation impossible.
  • the object of the present invention is to improve the above characteristics of wear resistance of the ring and the sliding properties between the ring and the traveller especially in high speed fine spinning.
  • Fig. 1 is a partly broken sectional diagram showing an embodiment of the ring for use in a spinning machine according to the present invention.
  • Fig. 2 is the enlarged view diagram for the essential part of the ring for use in a spinning machine according to the present invention.
  • Fig. 3 is curve showing the relationship between the heat treatment temperature and the hardness of the nickelphosphorous alloy coated layer.
  • Fig. 4a is a curve showing the surface roughness of the composite plated layer before the polishing process.
  • Fig. 4b is a curve showing the surface roughness of the composite plated layer after the polishing process.
  • Fig. 5a is an explanatory diagram showing the surface state of the composite plated layer before the polishing process
  • Fig. 5b is an explanatory diagram showing the surface state after the polishing process.
  • Fig. 6 is a curve showing the relationship between the spindle revolution number and the index of the wear resistance
  • Fig. 7 is a curve showing the relationship between the distance from the surface of the ring according to the present invention and the Vickers hardness thereof.
  • a steel material (S15 CK) of cylindrical shape was cut and processed to form a ring 1 (Fig. 1), and the ring was subjected to carburizing hardening and surface treatment.
  • the above-described ring had such a structure that it had a collar 3 on the external circumferential surface of the cylindrically shaped trunk part, and further, had a ring flange 5 on which the ring traveller slides, at the top of the ring neck part 4.
  • the above-described ring 1 was, after being subjected to the pre-treatment of the plating such as degreasing and acid cleaning on at least the surface of the ring flange 5, was covered by forming a composite plated layer 6 dispersed and separated with silicon carbide as a co-separating substance in the matrix of a nickel-phosphorous alloy 7. (Fig. 2)
  • the composite plated layer 6 was formed by electroless plating with the dispersion of the silicon carbide 8 of a particle size of 1 ⁇ m as hard fine grains in such an amount that its content becomes approximately 4 % by weight, in the matrix of the nickel-phosphorous alloy 7.
  • the ring 1 on which the composite plated layer 6 was formed was subjected to heat treatment in a heat treating furnace at the heat treating temperature of 400 °C for about 1 hour to crystallize the nickel-phosphorous of the matrix. Due to this crystallization, the composite plated layer could obtain the high hardness of HV 1000. Moreover, the closely adhering properties of the co-separating substance, silicon carbide, to the matrix was strengthened.
  • the ring flange 5 to which the ring traveller of the ring 1 subjected to heat treatment contacts and slides was formed by subjecting it to the polish processing by use of lapping to be formed to have the thickness of the composite plated layer of 30 ⁇ m.
  • polish processing By carrying out polish processing, hard fine grains were exposed on the surface of the ring flange 5, and the flange was finished to become a smooth surface with the surface roughness of less than 0.2 ⁇ m.
  • Figs. 4a and 4b shown are the data of the surface roughness before and after the polishing process. Also, in Fig. 5a, the surface state of the ring flange 5 before the polishing process is shown, and in Fig. 5b, the surface state of the ring flange after the polishing process is shown.
  • the most outside surface of the composite plated layer 6 shows the co-existence state of the hard fine particles of the silicon carbide 8 exposed in the matrix, nickel-phosphorous alloy 7.
  • the most preferable substance as the hard fine particles which is co-separated in the composite plated layer 6, is silicon carbide 8 having high hardness, large anti-chemical properties and anti-wearing properties, and good thermal conductivity.
  • the ring 1 on which the above-described composite plated layer 6 is formed has such an advantage that it easily radiates the friction heat generated in the time when the ring traveller runs on the ring flange, and elongates the life of the traveller.
  • the hard fine particles Although silicon carbide has been used as the hard fine particles, at least one kind or two or more kinds of tungsten carbide, boron nitride, or aluminium oxide can be also used.
  • the particle diameter of the hard fine particles is preferably in the range of 0.2 ⁇ m to 3 ⁇ m, and when it is less than 0.2 ⁇ m, the anti-wearing properties of the ring are inferior, and when it exceeds 3 ⁇ m, hard fine particles drop out from the composite plated layer, and the radiation of the friction heat becomes bad, to shorten the life of the traveller, and together with that, to lower the anti-wearing properties of the ring remarkably.
  • the content percentage of the hard fine particles included in the matrix of the composite plated layer is 2 to 15 % by weight.
  • the area percentage of the particles in the surface and in the cross section of the ring flange is observed to be 5 to 40 % preferably 10 to 30 %.
  • the area percentage of the silicon carbide described in the above-described embodiment was 19.5 % in the cross section, and 25.6 % in the surface.
  • the area percentage of the silicon carbide is less than 5 %, the anti-wearing property of the ring deteriorates, and when it exceeds 40 % the sliding property of the ring traveller deteriorates to cause the baking of the traveller at an early time and frequent yarn cuttings.
  • the thickness of the composite plated layer 6 was taken as 30 ⁇ m, the thickness of 5 to 35 ⁇ m is preferable, and when it is less than 5 ⁇ m, the anti-wearing properties at the spindle revolution of more than 20,000 r.p.m. deteriorate , and when it exceeds 35 ⁇ m, the treating time of the composite plating becomes extremely long to make the production cost of the ring high.
  • the thickness of the composite plated layer is taken as 16 to 35 ⁇ m, since the life in the high speed spinning can be prolonged.
  • the heat treatment conditions of the ring 1 formed with the composite plated layer 6 were such that the heat treatment time at the heat treatment temperature of 400 °C was about 1 hour, but the heat treatment may be effected at the heat treatment temperature of 320 to 420 °C and for the heat treatment time of about 1 to 2 hours.
  • the hardness of the mother material immediately below the composite plated layer is preferably at Hv 500 to 650.
  • the surface of the ring on which the ring traveller contacts and slides was polish processed to make the surface roughness of the surface of the ring becomes less than Ra 0.2 ⁇ m.
  • the surface roughness of the composite plating exceeds 0.2 ⁇ m in Ra, the running of the ring traveller is disturbed, and high speed operation becomes unable to be carried out.
  • the surface roughness be less than Ra 0.2 ⁇ m, not only the running of the ring traveller was made smooth, but also the friction resistance of the ring traveller in the high speed revolution zone of the spindle revolution was reduced, since it made the hard fine particles having high hardness and excellent anti-wearing properties be exposed on the most external surface of the composite plated layer to form the coexistence state with the matrix.
  • nickel-phosphorous alloy nickel-tungsten-phosphorous alloy, and the like are used.
  • Comparative test was carried out by using the ring (A) for spinning machine of the present invention, the ring (B) for spinning machine obtained by effecting case hardening carburizing hardening to the conventional low carbon steel, and the conventional ring (C) which was subjected to the above described composite plating and having the surface roughness of Ra 0.4 ⁇ m.
  • Fig. 6 are shown the friction resistance indices of the ring traveller and the ring at the revolution number of each spindle under the above-described spinning conditions.
  • a composite plated layer is formed by making hard fine particles as a co-separating substance and the nickel-phosphorous containing nickel alloy as a matrix, and the hardness of the matrix is made be Hv 900 to 1200, and hard fine particles are exposed on the surface thereof, and the surface roughness is made be less than Ra 0.2 ⁇ m, so that the ring traveller shows good fit even in the super high speed revolution zone of the spindle revolution of more than 24,000 r.p.m., and stabilized continuous operation can be carried out. Moreover the baking of the ring traveller is prolonged.
  • the peel out of the composite plated layer does not occur, and the performance of the ring can be maintained for a long period.
  • the hardness of the ring mother material immediately below the composite plated layer is made as Hv 500 to 650, there is such excellent effects that the wear amount of the ring is little, the life of the ring is prolonged, and the like.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)

Claims (3)

  1. Spinnring für Spinnmaschinen mit einer Flanschfläche für die Läuferführung,
    - der Spinnring ist mit einer Beschichtung (6) versehen, die aus einer Nickel-Phosphor-Legierung (7) als Matrix besteht, in die harte, kleine Partikel (8) dispergiert sind und die durch eine Wärmebehandlung des Ringes kristallisiert ist,
    - die Beschichtung besitzt eine glatte Oberfläche, die durch einen mechanischen Poliervorgang erreicht wird, bei dem die Oberflächenrauhigkeit durch Läppen auf einen Wert geringer als 1 µm max reduziert worden ist,
    dadurch gekennzeichnet,
    - daß der mechanische Poliervorgang derart ausgeführt worden ist,
    a) daß Teile der harten Partikel herausgebrochen worden sind,
    b) daß Teile der harten Partikel an der Oberfläche der Beschichtung freigelegt worden sind und zwar in einem Flächenanteil von 5 bis 40 %,
    c) und daß die Rauhigkeit der Oberfläche der Beschichtung in der Mittellinie der Läuferführung geringer als 0,2 µm ist.
  2. Spinnring für Spinnmaschinen nach Anspruch 1,
    dadurch gekennzeichnet,
    - daß die Schichtdicke der Beschichtung (6) 5 bis 35 µm beträgt.
  3. Spinnring für Spinnmaschinen nach Anspruch 1,
    dadurch gekennzeichnet,
    - daß die harten Partikel einen Durchmesservon 0,2 µm bis 3 µm aufweisen
    - und zumindest aus einer Gruppe von Siliziumkarbid, Wolframkarbid, Borkarbid und Aluminiumoxid ausgewählt sind.
EP89111339A 1988-06-23 1989-06-22 Ring für Spinnmaschinen Expired - Lifetime EP0347896B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP155445/88 1988-06-23
JP63155445A JPH01321925A (ja) 1988-06-23 1988-06-23 紡機用リング

Publications (2)

Publication Number Publication Date
EP0347896A1 EP0347896A1 (de) 1989-12-27
EP0347896B1 true EP0347896B1 (de) 1997-11-26

Family

ID=15606195

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89111339A Expired - Lifetime EP0347896B1 (de) 1988-06-23 1989-06-22 Ring für Spinnmaschinen

Country Status (4)

Country Link
EP (1) EP0347896B1 (de)
JP (1) JPH01321925A (de)
KR (1) KR960016472B1 (de)
DE (1) DE68928458T2 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5175988A (en) * 1988-06-23 1993-01-05 Kanai Juyo Kogyo Company Ltd. Ring for spinning machinery
DE4335538A1 (de) * 1992-11-04 1994-05-05 Rieter Ag Maschf Spinnring mit Verschleiß-Schutzschicht und Einlaufschicht
CH686312A5 (de) * 1992-11-04 1996-02-29 Rieter Ag Maschf Spinnring mit Metall-Phosphor-Beschichtung und Ringspinnmaschine.
DE4342148A1 (de) * 1993-12-10 1995-06-14 Cerasiv Gmbh Ring-/Läufersystem für Spinn- und Zwirnmaschinen

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3026210A1 (de) * 1980-07-10 1982-02-11 Hollingsworth Gmbh, 7265 Neubulach Verfahren zum erhoehen der verschleissfestigkeit des saegezahndrahtbeschlages der trommel einer karde
JPH0248438Y2 (de) * 1984-09-27 1990-12-19

Also Published As

Publication number Publication date
JPH01321925A (ja) 1989-12-27
EP0347896A1 (de) 1989-12-27
DE68928458T2 (de) 1998-05-07
JPH0571685B2 (de) 1993-10-07
DE68928458D1 (de) 1998-01-08
KR960016472B1 (ko) 1996-12-12
KR900000497A (ko) 1990-01-30

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