EP3604635A1 - Faserführung - Google Patents

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Publication number
EP3604635A1
EP3604635A1 EP18777287.6A EP18777287A EP3604635A1 EP 3604635 A1 EP3604635 A1 EP 3604635A1 EP 18777287 A EP18777287 A EP 18777287A EP 3604635 A1 EP3604635 A1 EP 3604635A1
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EP
European Patent Office
Prior art keywords
fiber
contact surface
zirconium silicate
silicate phase
fiber contact
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.)
Withdrawn
Application number
EP18777287.6A
Other languages
English (en)
French (fr)
Other versions
EP3604635A4 (de
Inventor
Shuichi Iida
Satoshi Toyoda
Mizuho OOTA
Hidehiro Takenoshita
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.)
Kyocera Corp
Original Assignee
Kyocera Corp
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 Kyocera Corp filed Critical Kyocera Corp
Publication of EP3604635A1 publication Critical patent/EP3604635A1/de
Publication of EP3604635A4 publication Critical patent/EP3604635A4/de
Withdrawn legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H57/00—Guides for filamentary materials; Supports therefor
    • B65H57/04—Guiding surfaces within slots or grooves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H57/00—Guides for filamentary materials; Supports therefor
    • B65H57/02—Stationary rods or plates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H57/00—Guides for filamentary materials; Supports therefor
    • B65H57/14—Pulleys, rollers, or rotary bars
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H57/00—Guides for filamentary materials; Supports therefor
    • B65H57/24—Guides for filamentary materials; Supports therefor with wear-resistant surfaces
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D11/00—Other features of manufacture
    • D01D11/04—Fixed guides
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H13/00—Other common constructional features, details or accessories
    • D01H13/04—Guides for slivers, rovings, or yarns; Smoothing dies

Definitions

  • the present disclosure relates to a fiber guide.
  • fiber guides having various shapes which are called a roller guide, an oiling nozzle, a rod guide, a traverse guide, or a friction disk, are attached to a fiber machine while in use.
  • a surface hereinafter referred to as a fiber contact surface
  • a fiber contact surface As for a surface (hereinafter referred to as a fiber contact surface) of a fiber guide that is brought into contact with a fiber, there is a demand to prevent the occurrence of damage, such as scratch or looseness, to a fiber. There is also a demand for low manufacturing costs of fiber guides.
  • aluminum oxide ceramics which are superior in abrasion resistance regardless of low costs, are often used as the material of a fiber guide.
  • Patent Literature 1 discloses a guide that includes aluminum oxide and has a Vickers hardness HV of 1900 or more.
  • Patent Literature 1 Japanese Laid-open Patent Publication No. 2003-213522
  • a fiber contact surface with a low friction coefficient may reduce the occurrence of damage to fibers while the fibers are guided.
  • a roller guide 10a illustrated in FIG. 1 guides a fiber 1 at a U-shaped groove portion while rotating.
  • an oiling nozzle 10b illustrated in FIG. 2 is used to apply oil to the fiber 1.
  • a rod guide 10c illustrated in FIG. 3 is used to bundle or separate the fibers 1.
  • a traverse guide 10d illustrated in FIG. 4 is used as a guide to wind the fiber 1 around the outer circumference of a cylindrical package.
  • a friction disk 10e illustrated in FIG. 5 is used to twist the fiber 1.
  • FIG. 6 is a top view (the view in the direction of the arrow that is white with the black outline in FIG. 2 ) of the oiling nozzle 10b illustrated in FIG. 2 .
  • the fiber guide is denoted by the reference numeral "10", except for the case where the specific fiber guide is described.
  • the fiber guide 10 includes a base 11 and a fiber contact surface 2 that is brought into contact with the fiber 1 in at least part of the base 11.
  • the fiber contact surface 2 is a surface of the fiber guide 10 that is brought into contact with the fiber 1 and, to discriminate it from the base 11, the fiber contact surface 2 is in the depth up to 0.2 mm from the surface that is brought into contact with the fiber 1.
  • the fiber contact surface 2 is illustrated in color so as to be distinguished.
  • the inlet side and the outlet side for the fiber 1 need to be clearly distinguished on the fiber contact surface 2, and the fiber contact surface 2 includes an inlet portion 3, an intermediate portion 4, and an outlet portion 5.
  • the fiber guide including the fiber contact surface 2 including the inlet portion 3, the intermediate portion 4, and the outlet portion 5 is, for example, the oiling nozzle 10b illustrated in FIG. 2 .
  • the fiber contact surface 2 of the above-described oiling nozzle 10b includes a pair of a first end 6 and a second end 7 in a delivering direction of the fiber 1.
  • the first end 6 is the portion of the fiber contact surface 2 with which the fiber 1 is first brought into contact at the inlet side of the fiber 1
  • the second end 7 is the portion of the fiber contact surface 2 with which the fiber 1 is in contact up to the end at the outlet side of the fiber 1.
  • the inlet portion 3 refers to, when the entire length of the fiber contact surface 2 is from the first end 6 to the second end 7, the portion of 1/5 of the entire length from the first end 6.
  • the outlet portion 5 refers to the portion of 1/5 of the entire length from the second end 7.
  • the portion of the fiber contact surface 2 between the inlet portion 3 and the outlet portion 5 is the intermediate portion 4.
  • the fiber contact surface 2 of the fiber guide 10 includes an aluminum oxide ceramic and, as illustrated in FIG. 7 , includes a zirconium silicate phase 8 between aluminum oxide crystals 9.
  • aluminum oxide ceramic out of 100 mass-% of all the components included in the aluminum oxide ceramic, aluminum oxide occupies 80 or more mass-%.
  • the material of the fiber contact surface 2 may be confirmed in the following method. First of all, measurement is conducted on the fiber contact surface 2 by using an X-ray diffraction device (XRD), and identification is executed by using the JCPDS card based on the obtained value of 2 ⁇ (2 ⁇ is a diffraction angle). Subsequently, quantitative analysis is conducted on components contained in the fiber contact surface 2 by using a fluorescence X-ray analysis device (XRF). Subsequently, an aluminum oxide ceramic is determined when the presence of aluminum oxide is confirmed during the identification by the above-described XRD and the content of aluminum oxide (Al 2 O 3 ), converted from the content of aluminum (Al) measured by the above-described XRF, is 80 or more mass-%.
  • XRD X-ray diffraction device
  • XRF fluorescence X-ray analysis device
  • the zirconium silicate phase 8 has a low friction coefficient as compared with the aluminum oxide crystal 9.
  • the fiber contact surface 2 has a low friction coefficient.
  • the presence or absence of the zirconium silicate phase 8 in the fiber contact surface 2 may be determined in the following method.
  • elemental mapping is executed on the area that is recognized as a phase present between the aluminum oxide crystals 9. If zirconium, silicon, and oxygen are simultaneously detected during the elemental mapping, it is determined that the fiber guide 10 according to the present disclosure includes the zirconium silicate phase 8. As the aluminum oxide layer 9 is present under the zirconium silicate phase 8, aluminum may be detected even when no aluminum oxide is included between the aluminum oxide crystals 9.
  • EPMA Electron Probe Micro Analyzer
  • FIG. 7 schematically illustrates a state of the fiber contact surface 2 observed by a Scanning Electron Microscope (SEM), or the like.
  • SEM Scanning Electron Microscope
  • the color relation in FIG. 7 is based on an SEM image (picture); the zirconium silicate phase 8 exhibits a white-based color, and the aluminum oxide crystal 9 exhibits a black-based color, whereby the zirconium silicate phase 8 and the aluminum oxide crystal 9 may be visually discriminated.
  • the base 11 and the fiber contact surface 2 include an integrated aluminum oxide ceramic, and the percentage of the area occupied by the zirconium silicate phase 8 in the fiber contact surface 2 may be higher than the percentage of the area occupied by the zirconium silicate phase 8 inside the base 11.
  • the inside of the base 11 refers to a portion in the depth of 0.2 or more mm from the surface of the base 11.
  • the material of the base 11 may be confirmed in the same method as the above-described method for confirming the material of the fiber contact surface 2.
  • the heat conductivity of the zirconium silicate phase 8 is approximately 3 to 8 W/m ⁇ K. Conversely, the heat conductivity of the aluminum oxide crystal 9 is approximately 15 to 40 W/m ⁇ K. Therefore, when the above-described configuration is satisfied, the fiber contact surface 2 having a higher percentage of the area occupied by the zirconium silicate phase 8 as compared with the base 11 has a lower heat conductivity than that of the inside of the base 11; thus, the friction heat generated in the fiber contact surface 2 during the delivery of the fiber 1 is diffused into the inside of the base 11 having a higher heat conductivity so that an increase in the temperature of the fiber contact surface 2 may be suppressed. Thus, in the fiber guide 10 according to the present disclosure, damage such as scratch or looseness are unlikely to occur in the fiber 1 even though the fiber 1 is guided for a long period of time. In other words, the friction coefficient of the fiber contact surface 2 may be maintained.
  • the percentage of the area occupied by the zirconium silicate phase 8 in the fiber contact surface 2 may be higher than the percentage of the area occupied by the zirconium silicate phase 8 inside the base 11 by 0.2 or more area-%.
  • the friction coefficient of the fiber contact surface 2 may be further maintained in the fiber guide 10 according to the present disclosure even though the fiber 1 is guided for a long time of period.
  • the percentage of the area occupied by the zirconium silicate phase 8 in the fiber contact surface 2 may be, for example, 0.2 or more area-% and 1.8 or less area-%.
  • the percentage of the area occupied by the zirconium silicate phase 8 inside the base 11 is, for example, 0.1 or less area-% and may be 0 area-%, in which the zirconium silicate phase 8 is not present.
  • the percentage of the area occupied by the zirconium silicate phase 8 in the fiber contact surface 2 and inside the base 11 may be calculated in the following method.
  • BEI backscattered electron image
  • the zirconium silicate phase 8 exhibits a white-based color as described above, image analysis is performed on the picture by applying a particle analysis technique of the image analysis software "A-zo Kun” (registered trademark, manufactured by Asahi Kasei Engineering Corporation; when the image analysis software "A-zo Kun” is described below, it indicates the image analysis software manufactured by Asahi Kasei Engineering Corporation) so that the percentage of the area occupied by the zirconium silicate phase 8 may be obtained.
  • A-zo Kun registered trademark, manufactured by Asahi Kasei Engineering Corporation
  • the percentage of the area occupied by the zirconium silicate phase 8 in the fiber contact surface 2 is the average value of the image analysis on six or more pictures at different areas of the fiber contact surface 2 captured at 1000 to 3000 magnification.
  • the contact surface 2 includes the inlet portion 3, the intermediate portion 4, and the outlet portion 5, the image analysis is conducted on two pictures at each of the different areas in the inlet portion 3, the intermediate portion 4, and the outlet portion 5, and the average value may be the percentage of the area occupied by the zirconium silicate phase 8 in the fiber contact surface 2.
  • the percentage of the area occupied by the zirconium silicate phase 8 inside the base 11 is the average value of the image analysis on six or more pictures at different areas inside the base 11 captured at 1000 to 3000 magnification.
  • Examples of the analysis conditions of "A-zo Kun” include, but are not limited to, "bright” for the brightness of a crystal particle, “manual” for the method for binarization, “present” for shading, etc., and a threshold may be set so as to clearly distinguish between the zirconium silicate phase 8 and the aluminum oxide crystal 9.
  • the percentage of the area occupied by the zirconium silicate phase 8 in the inlet portion 3 may be higher than the percentage of the area occupied by the zirconium silicate phase 8 in the intermediate portion 4.
  • the inlet portion 3 which is a portion where the fiber 1 is most likely to be damaged, may have low frictional resistance.
  • the percentage of the area occupied by the zirconium silicate phase 8 in the inlet portion 3 included in the fiber contact surface 2 may be 0.3 or more area-% and 2.5 or less area-%.
  • the percentage of the area occupied by the zirconium silicate phase 8 in the inlet portion 3 and the intermediate portion 4 may be calculated by the particle analysis of the image analysis software "A-zo Kun" in the same manner as the above-described method for calculating the percentage of the area occupied by the zirconium silicate phase in the fiber contact surface 2 and inside the base 11.
  • the percentage of the area occupied by the zirconium silicate phase 8 in the inlet portion 3 is the average value of the image analysis on two or more pictures at different areas of the inlet portion 3 captured at 1000 to 3000 magnification.
  • the percentage of the area occupied by the zirconium silicate phase 8 in the intermediate portion 4 is the average value of the image analysis on two or more pictures at different areas of the intermediate portion 4 captured at 1000 to 3000 magnification.
  • the average value of the equivalent circle diameter of the zirconium silicate phase 8 in the fiber contact surface 2 may be 0.6 or more ⁇ m and 3.2 or less ⁇ m.
  • the equivalent circle diameter refers to the diameter of the circle when the zirconium silicate phase 8 is converted into the circle having the same size. When this configuration is satisfied, the zirconium silicate phase 8 is unlikely to be removed from the fiber contact surface 2 so that the friction coefficient of the fiber contact surface 2 may be further maintained.
  • the average value of the equivalent circle diameter of the aluminum oxide crystal 9 is, for example, 10 or more ⁇ m and 25 or less ⁇ m.
  • the average value of the equivalent circle diameter of each of the zirconium silicate phase 8 and the aluminum oxide crystal 9 may be calculated in the same method as the above-described method for calculating the percentage of the area occupied by the zirconium silicate phase in the fiber contact surface 2.
  • a sliding testing device illustrated in FIG. 8 is a device that includes a roller R1, a roller R2, the fiber guide 10, a roller R3, and a roller R4 so as to guide the fiber 1 in this order.
  • the roller R2 and the roller R3 are coupled to tension detectors (not illustrated).
  • the friction coefficient changes in accordance with a testing condition, such as the type of the fiber 1, the form of the fiber 1, the delivering speed of the fiber 1, the tensional force of the fiber 1, or ⁇ . For this reason, the comparison between friction coefficients needs to be performed under the same testing condition.
  • the oiling nozzle 10b is described as an example.
  • the base 11 and the fiber contact surface 2 include an integrated aluminum oxide ceramic.
  • zirconium silicate (ZrSiO 4 ) powders may be doped when a slurry is produced.
  • spray drying is conducted by using a spray drier to produce granular powders.
  • the granular powders, thermoplastic resin, wax, and the like are put into a kneader and mixed while heated to obtain a paste.
  • the obtained paste is put into a pelletizer to obtain pellets that are the material for injection molding (injection molding).
  • the obtained pellets are put into an injection molding machine (injection molding machine) for injection molding so as to obtain a compact shaped like an oiling nozzle.
  • injection molding machine injection molding machine
  • a mold for obtaining an oiling nozzle shape may be manufactured according to a typical injection molding technique and may be placed in the injection molding machine for injection molding.
  • the obtained compact is sintered in the air atmosphere at the highest temperature of 1500 or more °C and 1600 or less °C and in the retention time of two or more hours and five or less hours at the highest temperature to obtain a sinter.
  • the sintering condition such as the highest temperature or the retention time, changes in accordance with the shape and the size of a product, they may be adjusted as appropriate.
  • the sinter, abrasive media, and water are put into a wet barrel finishing machine, and barrel finishing is performed.
  • zirconium silicate powders have been mixed with water; therefore, when the media collides with the sinter during barrel finishing, the zirconium silicate powders enter the gap between the aluminum oxide crystals 9 so as to adhere to the surface of the sinter as the zirconium silicate phase 8.
  • the sinter is cleaned and dried to obtain the oiling nozzle 10b according to the present disclosure.
  • the percentage of the area occupied by the zirconium silicate phase 8 in the fiber contact surface 2 and inside the base 11 may be controlled to have any value by adjusting the amount of zirconium silicate powders doped to produce a slurry, the amount of zirconium silicate powders mixed with water during barrel finishing, and the time period of the barrel finishing.
  • the percentage of the area occupied by the zirconium silicate phase 8 in the inlet portion 3 and the intermediate portion 4 of the fiber contact surface 2 may be controlled to have any value by adjusting the amount of zirconium silicate powders mixed with water during barrel finishing and the time period of the barrel finishing and by executing barrel finishing while masking parts of the inlet portion 3 and the intermediate portion 4 of the fiber contact surface 2.
  • the average particle diameter of the zirconium silicate powder used may be adjusted so that the average value of the equivalent circle diameter of the zirconium silicate phase 8 in the fiber contact surface 2 becomes 0.6 or more ⁇ m and 3.2 or less ⁇ m.
  • Oiling nozzles were manufactured, which were different depending on the presence or absence of a zirconium silicate phase in a fiber contact surface. A sliding test was conducted on the oiling nozzles to compare the friction coefficients of fiber contact surfaces.
  • aluminum oxide powders, titanium oxide (TiO 2 ) powders and magnesium carbonate (MgCO 3 ) powders as sintering agents were prepared.
  • the powders were weighted and mixed such that the aluminum oxide powders were 98.4 mass-%, the titanium oxide powders were 1 mass-%, and the magnesium carbonate powders were 0.6 mass-% in terms of magnesium oxide (MgO).
  • they were put into a mill together with water, which was a solvent, and a ball to be ground so as to produce a slurry.
  • the granular powders, thermoplastic resin, and wax were additionally put into a kneader and mixed while heated to obtain a paste.
  • the obtained paste was put into a pelletizer to obtain pellets that were the material for injection molding.
  • the obtained pellets were put into an injection molding machine for injection molding so as to obtain a compact shaped like an oiling nozzle.
  • the compact was sintered in the air atmosphere at the highest temperature of 1550 °C and in the retention time of three hours at the highest temperature to obtain a sinter.
  • the sinter, abrasive media, and water were put into a wet barrel finishing machine and were subjected to barrel finishing for two hours.
  • zirconium silicate powders having an average particle diameter of 3.5 ⁇ m were mixed with water such that the amount to be doped was 0.015 mass-% with respect to 100 mass-% of the total amount of water and zirconium silicate powders.
  • barrel finishing was conducted by using water that was not mixed with zirconium silicate powders to obtain a sample No. 2.
  • each sample was set in the sliding testing device illustrated in FIG. 8 and was subjected to a sliding test to obtain the friction coefficient of each sample.
  • the measurement conditions were as follows:
  • Table 1 illustrates the results.
  • Table 1 SAMPLE NO. PRESENCE OR ABSENCE OF ZIRCONIUM SILICATE PHASE FRICTION COEFFICIENT ⁇ 1 PRESENT 0.36 2 ABSENT 0.45
  • the sample No. 1 had a low friction coefficient of 0.36 as compared with the sample No. 2. This indicates that, when the fiber contact surface includes the zirconium silicate phase, the fiber contact surface has a low friction coefficient.
  • oiling nozzles having different percentages of the area occupied by the zirconium silicate phase in the fiber contact surface and inside the base were produced.
  • a sliding test was conducted on the oiling nozzles to compare the friction coefficients of the fiber contact surfaces.
  • the production method was the same as the method for producing the sample No. 1 according to the first embodiment except that the amount of zirconium silicate powders illustrated in Table 2 was doped to produce a slurry and the amount of zirconium silicate powders illustrated in Table 2 was doped and mixed with water during barrel finishing, and a sample No. 5 was the same as the sample No. 1 according to the first embodiment.
  • the slurry was doped with zirconium silicate powders
  • the amount of aluminum oxide powders to be doped was reduced by the amount of zirconium silicate powders doped.
  • the percentage of the area occupied by the zirconium silicate phase in the fiber contact surface and inside the base of each sample was calculated in the following method.
  • backscattered electron image pictures of the fiber contact surface and the inside of the base were taken by using the SEM.
  • the image analysis was performed on the picture by applying a particle analysis technique of the image analysis software "A-zo Kun" so that the percentage of the area occupied by the zirconium silicate phase was obtained.
  • the percentage of the area occupied by the zirconium silicate phase in the fiber contact surface was the average value of the image analysis on two pictures at different areas in the inlet portion, the intermediate portion, and the outlet portion of the fiber contact surface captured at 2000 magnification.
  • the percentage of the area occupied by the zirconium silicate phase inside the base was the average value of the image analysis on six pictures at different areas of the inside captured at 2000 magnification.
  • the sliding test was performed in the same manner as in the first embodiment except that the start time of the measurement of a friction coefficient was 20 minutes after the start of the sliding test, and the friction coefficient of the fiber contact surface of each sample was obtained. Table 2 illustrates the results. Table 2 SAMPLE NO.
  • ZIRCONIUM SILICATE POWDERS (MASS-%) PERCENTAGE OF AREA OCCUPIED BY ZIRCONIUM SILICATE PHASE FRICTION COEFFICIENT ⁇ SLURRY BARREL FINISHING FIBER CONTACT SURFACE INSIDE DIFFERENCE (FIBER CONTACT SURFACE-IN SIDE) 3 0.2 0 0.2 0.2 0 0.4 4 0 0.01 0.13 0 0.13 0.38 5 0 0.015 0.2 0 0.2 0.36 6 0 0.04 0.6 0 0.6 0.35 7 0 0.13 1.8 0 1.8 0.34 8 0.2 0.13 2.0 0.2 1.8 0.34
  • samples No. 4 to 8 had a low friction coefficient of 0.38 or less in the fiber contact surface, as compared with the sample No. 3. This indicates that, when the percentage of the area occupied by the zirconium silicate phase in the fiber contact surface is higher than the percentage of the area occupied by the zirconium silicate phase inside the base, the friction coefficient of the fiber contact surface may be maintained.
  • the samples No. 5 to 8 had a low friction coefficient of 0.36 or less in the fiber contact surface. This indicates that, when the percentage of the area occupied by the zirconium silicate phase in the fiber contact surface is higher than the percentage of the area occupied by the zirconium silicate phase inside the base by 0.2 or more area-%, the friction coefficient of the fiber contact surface may be further maintained.
  • oiling nozzles having different percentages of the area occupied by the zirconium silicate phase in the inlet portion and the intermediate portion of the fiber contact surface were produced.
  • a sliding test was performed on the oiling nozzles to compare the friction coefficients of the fiber contact surfaces.
  • the production method was the same as the method for producing the sample No. 1 according to the first embodiment except that the amount of zirconium silicate powders doped and mixed with water during barrel finishing was adjusted and parts of the inlet portion and the intermediate portion in the fiber contact surface were masked so that the percentage of the area occupied by the zirconium silicate phase became the value illustrated in Table 3, and a sample No. 9 was the same sample as the sample No. 1 according to the first embodiment.
  • Table 3 illustrates the results.
  • Table 3 SAMPLE NO. PERCENTAGE OF AREA OCCUPIED BY ZIRCONIUM SILICATE PHASE (AREA-%) FRICTION COEFFICIENT ⁇ INLET PORTION INTERMEDIATE PORTION 9 0.2 0.2 0.36 10 0.1 0.2 0.37 11 0.2 0.1 0.32 12 0.3 0.1 0.29 13 1 0.1 0.28 14 2.5 0.1 0.29 15 3 0.1 0.32
  • the samples No. 11 to 15 have a low friction coefficient of 0.32 or less in the fiber contact surface, as compared with the samples No. 9, 10. This indicates that, when the percentage of the area occupied by the zirconium silicate phase in the inlet portion is higher than the percentage of the area occupied by the zirconium silicate phase in the intermediate portion, the friction coefficient of the fiber contact surface may be lower.
  • the samples No. 12 to 14 have a low friction coefficient of 0.29 or less in the fiber contact surface. This indicates that, when the percentage of the area occupied by the zirconium silicate phase in the inlet portion is 0.3 or more area-% and 2.5 or less area-%, the friction coefficient of the fiber contact surface may be lower.
  • oiling nozzles having different average values of the equivalent circle diameter of the zirconium silicate phase in the fiber contact surface were produced.
  • a sliding test was performed on the oiling nozzles to compare the friction coefficients of the fiber contact surfaces.
  • the production method was the same as the method for producing the sample No. 6 according to the second embodiment except that the zirconium silicate powder having the average particle diameter illustrated in Table 4 was used during barrel finishing and the barrel time period illustrated in Table 4 was applied, and a sample No. 20 was the same sample as the sample No. 6 according to the second embodiment.
  • the barrel time period for each sample was changed so that the percentage of the area occupied by the zirconium silicate phase in the fiber contact surface of each sample became 0.6 area-%.
  • the average value of the equivalent circle diameter of the zirconium silicate phase in the fiber contact surface of each sample was calculated in the same method as the method for calculating the percentage of the area occupied by the zirconium silicate phase in the fiber contact surface according to the second embodiment.
  • Table 4 illustrates the results.
  • Table 4 SAMPLE NO. AVERAGE PARTICLE DIAMETER ( ⁇ m) OF ZIRCONIUM SILICATE POWDER BARREL TIME PERIOD (HOUR) AVERAGE VALUE ( ⁇ m) OF EQUIVALENT CIRCLE DIAMETER OF ZIRCONIUM SILICATE PHASE FRICTION COEFFICIENT ⁇ 16 0.4 6 0.4 0.35 17 0.4 5 0.6 0.29 18 1.8 4 1.8 0.27 19 3.2 3 3.2 0.29 20 3.5 2 3.5 0.35
  • samples No. 17 to 19 have a low friction coefficient of 0.29 or less in the fiber contact surface, as compared with the samples No. 16, 20. This indicates that, when the average value of the equivalent circle diameter of the zirconium silicate phase in the fiber contact surface is 0.6 or more ⁇ m and 3.2 or less ⁇ m, the friction coefficient of the fiber contact surface may be further maintained.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Guides For Winding Or Rewinding, Or Guides For Filamentary Materials (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Inorganic Fibers (AREA)
EP18777287.6A 2017-03-29 2018-03-26 Faserführung Withdrawn EP3604635A4 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2017065419 2017-03-29
PCT/JP2018/012082 WO2018181148A1 (ja) 2017-03-29 2018-03-26 繊維ガイド

Publications (2)

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EP3604635A1 true EP3604635A1 (de) 2020-02-05
EP3604635A4 EP3604635A4 (de) 2020-12-30

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CN (1) CN110520558B (de)
WO (1) WO2018181148A1 (de)

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EP4177200A1 (de) * 2021-11-04 2023-05-10 Saurer Intelligent Technology AG Fadenführungselement sowie garnreiniger für eine arbeitsstelle einer textilmaschine mit einem fadenführungselement

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CN110520558B (zh) 2022-02-25
CN110520558A (zh) 2019-11-29

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