JPH1169929A - Guide member for fishing tackle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a guide member for a fishing tackle capable of retaining excellent durability without deteriorating at all even by using a fishing line having a higher strength and a higher elastic modulus. SOLUTION: This guide ring A for a fishing tackle is obtained by forming a coating film 3 having respective peaks at 1,500±60 cm<-1> , 1,160±40 cm<-1> and 1,340±40 cm<-1> wavelengths in a Raman spectroscopic spectrum through an interlayer 2 on a guide ring body 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fishing gear guide member such as a fishing line guide, a fishing rod guide, a reel line guide, etc., which comes in contact with a fishing line.

[0002]

2. Description of the Related Art Conventionally, there are metal, glass, agate, porcelain and the like as materials for guide members for fishing gear, but these have low abrasion for guiding purposes, for example, fishing line (nylon line).
When fine sand, salt, or the like adheres, is rubbed by this, and as a result, there is a problem that the surface state of the guide member is deteriorated and the life of the fishing line is shortened.

In order to solve this problem, a high-hardness material,
A guide member made of a wear-resistant material having good slip properties is used, for example, WC, hard chrome, Al ₂ O ₃ , ZrO ₂ , Si
C, Si ₃ N ₄ , and ceramic composites thereof are used (see JP-A-5-153887). On the other hand, a technique for coating diamond has also been proposed (see Japanese Patent Application Laid-Open No. 7-3227965).

[0004]

However, with the recent increase in the strength and elasticity of the fishing line itself, there is a problem that the surface of the guide member is easily roughened. Further, in the case of a guide member made of a material having a low thermal conductivity, the fishing line has been blown by frictional heat generated between the fishing line and the guide member.

[0005] These problems have not been solved to a satisfactory degree even in a guide member made of non-oxide ceramics, and the same applies even when a diamond coating is applied.

In addition, since the surface roughness Ra of the conventional diamond coating film is 0.2 μm or more, a metal such as Ag, Cu, Cr,
Ceramics such as C, SiC, B ₄ C, etc. are coated in layers to fill the irregularities on the diamond film surface,
Improving smoothness has also been proposed.

In view of the above circumstances, the present inventors have made intensive studies. As a result, when a polycrystalline film is coated by ECR (Electron Cyclotron Resonance) plasma CVD among the CVD methods, adhesion strength, surface smoothness, and abrasion resistance are obtained. It was found that both sexes were excellent.

The present invention has been completed based on the above findings, and has as its object the purpose of a fishing tackle guide which does not deteriorate at all and maintains excellent durability even when a fishing line having high strength and high elasticity is used. It is to provide a member.

[0009]

According to the present invention, there is provided a fishing gear guide member on a guide body made of ceramics or cermet, having a wavelength of 1500 in Raman spectrum.
± 60cm ^-1 and 1160 ± 40cm ^-1 and wavelength 1340 ±
A polycrystalline diamond film having each peak at 40 cm ^-1 is formed.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail with reference to FIGS. FIG. 1 is a cross-sectional view showing a main part of a fishing line guide ring as a fishing tackle guide member according to the present invention. FIGS. 2 and 3 are Raman spectra of an ECR diamond coating film, respectively, and DLC (diamond-like carbon) as a comparative example. 5 is a Raman spectrum of a coating film. FIG. 4 is a schematic diagram of a heating test apparatus for testing the performance of a diamond coating film.

In the guide ring A for fishing gear shown in FIG. 1, 1 is a guide ring main body, 2 is an intermediate layer, and 3 is a coating film made of polycrystalline diamond by ECR plasma CVD. The fishing line 4 is in contact with the guide ring A for fishing gear.

The guide ring body 1 is made of ceramic or cermet (sintered alloy), and this ceramic includes SiC, Al ₂ O ₃ , ZrO ₂ , SiC, and Si ₃ N.
₄ , TiN, TiC, etc., cermet is WC, T
a cemented carbide composed of a hard phase mainly composed of iCN, TiN, TiC, TiC-based cermet, TiCN-based cermet,
TiN-based cermets and the like, particularly, carbide ceramics and cermets are preferable. In addition, the guide ring body 1
In selecting the material, it is desirable that the coefficient of thermal expansion of the coating film 3 be as close as possible.
Since a plasma CVD method is employed, it is preferable to use a non-magnetic material.

The intermediate layer 2 is interposed to further increase the adhesive strength of the coating film 3 and achieve excellent durability. It is preferable that the intermediate layer 2 be made of a carbide in that the adhesion of the coating film 3 is enhanced. However, even when the intermediate layer 2 is not provided, the coating film 3 is directly coated on the guide ring main body 1 to achieve high adhesion strength.

The intermediate layer 2 includes "combination of C (polycrystalline diamond) and a carbide of a base material component (guide ring body 1)" or "combination of SiC". Specifically, “C (polycrystalline diamond) + Si” as an intermediate layer 2 is formed on a guide ring main body 1 made of Si ₃ N ₄ or SiC by an ECR plasma CVD method.
By forming a mixed layer of "C", higher adhesion strength can be obtained. When the guide ring main body 1 is made of Ti or a Ti alloy, high adhesion strength can be obtained by forming a mixed layer of “C (polycrystalline diamond) + SiC + TiC” as the intermediate layer 2 by ECR plasma CVD. .

The coating film 3 is made of ECR plasma C
This is a polycrystalline diamond film formed by the VD method, and has a wavelength of 1 as shown in FIG.
500 ± 60cm ^-1 and 1160 ± 40cm ^-1 and wavelength 13
Characteristically, each peak is at 40 ± 40 cm ⁻¹ .
On the other hand, it is clearly different from the DLC (diamond-like carbon) coating shown in the Raman spectroscopic analysis of FIG.

Although this coating film 3 is made of diamond, when analyzed by Raman spectroscopy,
60 ± 40 cm ⁻¹ , 1340 ± 40 cm ⁻¹ and 150
There are three kinds of peaks at 0 ± 60 cm ⁻¹ and 1160 ± 4
The peak at 0 cm ^-1 indicates a diamond precursor or polyene structure, and is a very fine crystal. Also, 13
The peak at 40 ± 40 cm ⁻¹ indicates a diamond crystal,
The peak at 00 ± 60 cm ⁻¹ indicates an amorphous carbon phase.

Such a coating film 3 has a high Vickers hardness of 8000 Kg / mm ^-2 or more, and has good sliding characteristics (friction coefficient 0.05 to 0.1). In addition, the thermal conductivity is 200 W / m · K or more, and the conventional Si
Since the thermal conductivity is about three times larger than that of the C ceramics, even if frictional heat is generated between the coating film 3 and the fishing line 4, the heat is quickly radiated. In addition, the crystal grains of diamond were small, the surface roughness Ra could be reduced to 0.05 μm or less, and excellent surface smoothness was obtained.

Further, since the ECR plasma CVD method is used for forming the coating film 3, the plasma spreads uniformly, so that even if it has a curved surface such as a guide ring for fishing gear, the shape change is remarkable. On the other hand, a good coating having a uniform thickness and excellent adhesion was obtained.

The thickness of the coating film 3 is preferably 2 μm or more. If the thickness is less than 2 μm, the guide ring main body 1 is easily exposed locally, and the fishing line is reduced due to a decrease in wear resistance of the exposed portion. Easy to be damaged. The thickness is preferably 2 μm to 20 μm, and most preferably 2 μm to 10 μm.

Thus, according to the guide ring A for fishing gear of the present invention, the polycrystalline diamond film defined by the Raman spectrum is formed by the ECR plasma CVD method, so that the adhesion strength, the surface smoothness, the abrasion resistance, and the heat conduction are improved. Even if the fishing line slides at a high speed or under a load, the guide ring body 1 will not be scratched or grooved, Even if frictional heat was generated, the heat was quickly radiated, and the fishing line was not welded by the heat.

Since the guide ring for fishing tackle of the present invention is coated with the coating film 3 having high hardness as described above, barrel polishing and buff polishing can be performed, thereby further improving the slidability and aesthetic value. Can be enhanced.

ECR Plasma CVD Method Next, the ECR plasma CVD method will be described. When a reaction gas is introduced into a reaction furnace in which a substrate for a coating having a predetermined shape is installed, a microwave of 2.45 GHz is introduced, and a magnetic field of 875 Gauss or more is applied, the electron cyclone frequency f = eB / 2πm (m: electron mass, e = electron charge, B: magnetic flux density), cyclone motion occurs. When this frequency matches the microwave frequency (2.45 GHz), resonance occurs,
The electrons significantly absorb the energy of the microwaves, thereby being accelerated and colliding with neutral molecules, causing ionization and, as a result, producing a dense plasma. The substrate temperature is 150 to 1000 ° C., and the furnace pressure is 1 × 10 ⁻² to
1 torr.

According to this method, the components and the like of the coating film 3 are changed by changing the substrate temperature, the furnace pressure and the reaction gas concentration at the time of film formation. Specifically, when the pressure in the furnace is increased, the plasma region is reduced and the growth rate of the film is reduced, but on the other hand, the crystallinity is improved. On the other hand, when the concentration of the reaction gas increases, the diameter of the particles constituting the film decreases, and the crystallinity deteriorates.

As a raw material gas, a hydrogen gas and a carbon-containing gas are used. This carbon-containing gas includes, for example, alkanes such as methane, ethane, and propane, ethylene, propylene,
Alkenes, acetylenes, aromatic hydrocarbons such as benzene, cycloparaffins such as cyclopropane, and cycloolefins such as cyclopentene.
In addition, oxygen-containing carbon compounds such as carbon monoxide, carbon dioxide, methyl alcohol, and acetone, and nitrogen-containing carbon compounds such as mono (di, tri) methylamine and mono (di, tri) ethylamine are also used as carbon source gases. You may. And
These various gases are used alone or in combination.

Further, in order to form the intermediate layer 2 for further improving the adhesion, after performing a diamond nucleation treatment (once growing only diamond microcrystals on the substrate once in a dot shape), the reaction is carried out if desired. As the gas, for example, a hydrogen gas, a carbon-containing gas and a silicon-containing gas are introduced. The silicon-containing gas includes halides such as silicon tetrafluoride, silicon tetrachloride, and silicon tetrabromide, oxides such as silicon dioxide, and other mono (di, tri, tetra, penta) silane, mono, (di, There are silane compounds such as tri (tetra) methylsilane and silanol compounds such as silanol such as trimethylsilanol. These may be used alone or in combination.

Evaluation Test Vickers hardness, thermal conductivity and coefficient of friction were measured by changing the material of the fishing line guide ring in various ways. The results shown in Table 1 were obtained. In the present invention, the guide ring main body 1 is constituted by a SiC sintered body, and the intermediate layer 2 is constituted by a mixed layer of SiC and C (polycrystalline diamond).

[0027]

[Table 1]

As is clear from this table, it can be seen that hardness, thermal conductivity and smoothness are remarkably superior to those of the prior art.

A heating test of the fishing line guide ring of the present invention and a comparative example of a fishing line guide ring made of SiC ceramics was performed using an experimental apparatus shown in FIG. was gotten.

In this heating test, a fishing line guide ring 6 is suspended from the support 5, a nylon fishing line 7 is passed through the fishing line guide ring 6, and a weight 8 is applied to one end of the fishing line 7 to apply a high load. The other end of the fishing line 7 is attached to the locking body 9, and in this state, the fishing line 7 is pressed against the inner surface of the guide ring 6. Then, the locking body 9 was reciprocated at a high speed, and the number of times until the fishing line 7 was broken was recorded.
In addition, in order to make the measurement conditions uniform, both have the same size and the same baking lot for the SiC sintered body.

[0031]

[Table 2]

As is clear from this table, it was confirmed that the fishing line guide ring of the present invention has a longer life of the nylon fishing line than the comparative example.

In the embodiment of the present invention, the fishing line guide ring is described, but the present invention is not limited to this example. For example, it can be applied to fishing rod guides, center rod top guides, thread introduction guides, inner guides, fishing rod outer surface guides, reel line guides, reel spool front ends, reel line rollers, and return parts. it can.

[0034]

As described above, according to the fishing tackle guide member of the present invention, a diamond coating by ECR plasma CVD is applied and a polycrystalline diamond film defined by a Raman spectrum is coated, so that a fishing line can be formed at a high speed. Also, even when the slide is applied under a load, it has excellent wear resistance, so that it can be used for a long time. Further, the fishing line was not melted due to frictional heat, and the fishing line could be stably and smoothly run for a long period of time, and as a result, the life of the fishing line itself could be maintained long.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a main configuration of a fishing gear guide ring of the present invention.

FIG. 2 is a diagram showing a Raman spectrum of an ECR diamond coating film.

FIG. 3 is a diagram showing a Raman spectrum of a DLC coating film.

FIG. 4 is a schematic diagram showing an outline of a heating test device.

[Explanation of symbols]

 A Guide ring for fishing gear 1 Guide ring body 2 Intermediate layer 3 Coating film 4 Fishing line

Claims (1)

[Claims] 1. A guide body made of ceramics or cermet, having a wavelength of 1 in Raman spectrum.
500 ± 60cm ^-1 and 1160 ± 40cm ^-1 and wavelength 13
A guide member for fishing gear, wherein a polycrystalline diamond film having respective peaks at 40 ± 40 cm ⁻¹ is formed.