JPH0522489B2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to fishing equipment, fishing rods, fishing reels, and other parts that come into contact with fishing lines, such as guide rings, line rings, line guides, line rollers, reel spools, and spool cups. , spool guides, spiral guides, frames for guide rings, threading tops, threading guides, rings for floating floats, untwisting parts, various thread take-ups, thread take-up rings, thread presser finger protectors, rods, rod handles, etc. (see below) (referred to as guide rings, etc.) slip properties, wear resistance,
This relates to improvements in thermal conductivity, electrical conductivity, impact resistance, hardness, and thread life.

[Conventional technology]

Parts that come into contact with the fishing line, such as guide rings, may be covered with fine sand, etc. due to the static electricity charged on the nylon line.
Salt and other substances adhere to the thread, forming a long file-like shape that is rubbed, scraped, and grooved over and over again, and the thread itself breaks, so unless it is extremely hard, there will be problems with wear resistance. Therefore, we changed from conventional metal rings, agate rings, glass rings, magnetic rings, etc. to tungsten carbide rings, hard chrome rings, and also alumina rings, zirconia rings, silicon nitride rings, silicon carbide rings, and other ceramic composite materials. There has been a shift towards rings and wear-resistant materials with higher hardness and better sliding properties.

[Problem to be solved by the invention]

Conventional metal guide rings have excellent impact resistance and do not have the problem of being damaged by hitting rocks etc. during use, and are highly conductive and discharge static electricity, so they can be used against sand, sand, etc.
Although it can considerably prevent the adhesion of fine particles such as salt and dust, (a)
(b) Ceramics (SiC, etc.) whose hardness is very low compared to ceramics (TiC, TiN, SiC), so they are easily damaged by contact with threads and have problems with wear resistance.
It has a higher coefficient of friction and poor slipperiness compared to other threads, causing severe damage to the thread and causing it to break quickly. (c) Color properties such as gold color (TiN, etc.), silver luster color (TiC, etc.), and any other mixed color. There are problems such as lack of fashionability.

Also, plastic guide rings are light and
It has the advantage of being low in production cost, but on the other hand, it has the disadvantage of having a problem with wear resistance and being easily damaged.

Next, regarding ceramic guide rings etc.
There are the following problems.

The hardness of ceramics is Al ₂ O ₃ and Hv = 2300 ~
2700, Hv=2000-3000 for SiC, Hv=1300 for _ZrO2
~1400, Hv=1700~ ₂₇₀₀ for _Si3N4 , Hv= for TiC
2000 to 5000, and TiN has a high hardness of Hv=2000 to 3000, but its wear resistance does not improve much for the following reasons. As shown in Figure 1b, the surface of ceramics has microscopic voids 1 such as micropores and cracks, and the corners 2 around them are sharp, and the force exerted by the fishing line can easily cause microscopic damage. It happens.

This minute damage occurs to the fishing line 3 as shown in Figure 1c.
During friction, the static electricity builds up and causes fine sand, salt, and other fine particles to adhere and grow into broken pieces 4. This broken small piece 4 is the fishing line 3
In addition to damaging the surface of the guide ring, etc., it causes serious wear.

In addition, ceramics are extremely susceptible to impact and often break when they hit hard objects such as rocks. Guide rings, etc., are installed by caulking them to the frame, but the force of caulking at this time can cause a considerable amount of damage. It may be damaged.

Furthermore, some ceramics have low thermal conductivity, and if a fishing line is run at a speed of 4 m/s, the fishing line (for example, nylon silver phosphorus No. 1.5) will start to melt.

In addition, many of the current ceramic material colors are plain and lack gold, silver, and other luxurious colors and fashionability.

The purpose of the present application is to provide a method for manufacturing guide rings and the like that improves abrasion resistance, prevents damage around pores, etc., and provides color fashionability at low cost.

[Means to solve the problem]

As a result of intensive research to achieve the above object, the inventor of the present invention has found that in order to prevent the corners around microscopic voids, such as micropores and cracks scattered on the ceramic surface, from becoming sharp and easily damaged,
The present invention was completed by discovering that abrasion resistance, impact resistance, and heat resistance can be improved by coating the crack with metal or ceramic in a buried manner, including around the crack. It was also confirmed that by polishing away the corners of the coating and reinforcing and retaining only the defective areas around the cracks, it was possible to correct the defects while retaining the characteristics of the base material.

That is, the gist of the first invention lies in a method for manufacturing a fishing tackle part whose base material is made of ceramics, characterized in that at least the surface in contact with the fishing line is coated with metal or ceramics. The second invention is the production of fishing gear parts whose base material is made of ceramics, in which at least the contact surface with the fishing line is coated with metal or ceramics, and then only the surface layer is physically or chemically removed. It's in the method.

The ceramic base material used in the present invention can be any ceramic that is normally used for fishing gear parts, but in particular, TiN, various ceramics containing TiN, TiC, αSiC, βSiC, high-purity alumina, alumina, BeO, _{Cr2O3 ,} MgO,
SiO ₂ (silica), SiO ₂ (quartz), silica glass,
TiO ₂ , crystal glass, ZrO ₂ (cubic crystal), monoclinic zirconia, mullite, spinel, cordierite, B ₄ C, WC, Si ₃ N ₄ , glasses, AlN, alumina porcelain, porcelain, agate, sialon ,
Other preferred materials include sintered bodies such as ceramic composite materials.

By the way, corners around microscopic voids such as microscopic pores and cracks scattered on the ceramic surface are very prone to breakage, and the broken powder at this time becomes the cause of the next full-scale breakage. In the present invention, as shown in FIG. 1a, a ceramic base material 6 is coated with a coating film 5 made of metal or ceramics. By doing this, the pores and cracks can be removed from TiC.
Carbides such as SiC, ZrC, HfC, TaC, Cr ₃ C ₂ , B ₄ C, TiN, Si ₃ N ₄ , AlN, ZrN, HfN, TaN,
Nitrides such as CrN, TiAlN, TiAl ₆ V ₄ CN, Al ₂ O ₃ ,
Oxide ceramics such as SiO ₂ , TiO ₂ , ZrO ₂ , Cr ₂ O ₃ or Au, Ag, Cr, Ti, Al, Ni, Zn,
It is possible to coat and fill with metals such as Pt, Cu, Fe, etc. to make them stick and hold, tighten and reinforce the surrounding area, reduce micro-destructive wear caused by the force exerted by the fishing line, and improve wear resistance.

The coating method is CVD, PVD, etc. depending on the suitability of the ceramics and metal to be coated.
method, thermal spraying method, etc., as appropriate. For example, Ti,
For Cr, TiN, TiC, etc., ion plating methods such as DC method, radio frequency method, cluster ion beam method, hot cathode method, ARE method, plasma electron beam method (HCD), arc discharge type high vacuum method, vacuum evaporation method, etc. PVD (Physical Vapor
Deposition method is preferred. In addition, ceramics such as SiC can be produced using CVD methods such as plasma method, reduced pressure method, and normal pressure method.
(Chemical Vapor Deposition) method or ion plating method is preferred.

Other effects can be added to the coating material by utilizing its properties.
For example, TiN, TiC, Ti, Cr, etc. are imparted with electrical conductivity, which prevents the adhesion of broken particles due to electrostatic charging to the fishing line, further improving wear resistance.
Also, SiC and other materials have high thermal conductivity, which can prevent the fishing line from breaking due to frictional heat.

In addition, to add color to the surface of the plain ceramic base material, TiN (gold color),
It is preferable to appropriately select or mix TiC (silver color) or a mixture of these colors for coating.

The number of coatings in the present invention is not limited to one type or one layer, but may of course be two or more types or two or more layers. For example, for the purpose of improving hardness, abrasion resistance, thermal conductivity, electrical conductivity, slipperiness, decorativeness, etc.
Adding TiN to SiC film, TiC film, or to TiC film
There are also methods of use such as attaching a TiN or SiC film, or a combination of metals such as Ti and Cr.

In addition, the coating of the present invention reduces frictional resistance and heat generation when it comes into contact with the fishing line 3 by layering the coating film 5 with undulations as shown in FIG. can extend the lifespan of

Furthermore, in the present invention, when the purpose is only to maintain and reinforce defects such as pores or cracks on the surface, as shown in FIG. If it is removed by a physical method such as polishing or a chemical method, and only the defect 1 (void) on the surface is filled, the characteristics of the base material can be utilized as is, and only the defect can be reinforced. can.

The thickness of the coating film is preferably 0.1 μm or more, since if it is less than 0.1 μm, the coating will not be uniform due to unevenness of the background. Also, if the roughness of the coating film is too large, it will seriously damage the fishing line, so it is preferable that the roughness is about 3S (defined as JIS B0601) or less.

Example 1 The following six types of invented products and comparative products were manufactured and subjected to wear resistance tests and fishing line life tests.

Comparative product A: Line roller made of ceramics (Al ₂ O ₃ ).

Comparative product B: Line roller made of ceramics (SiC).

Invention product C: The surface of comparative product A was finished to 0.1S or less by barrel polishing, and then TiN was coated to a thickness of 3 μm using an arc discharge type high vacuum ion plating method.

Invention product D: The surface of comparative product A was finished to 0.1S or less by barrel polishing, and then TiC was coated to a thickness of 2 μm using arc discharge type high vacuum ion plating method, and TiN was further coated to a thickness of 2 μm. .

Invention product E: Comparison product B whose surface was finished to 0.1S or less by barrel polishing, and then TiN was coated to a thickness of 3 μm by arc discharge type high vacuum ion plating method.

Invention product F: The surface of comparative product B was finished to 0.1S or less by barrel polishing, and then TiC was coated to a thickness of 2 μm using arc discharge type high vacuum ion plating method, and TiN was further coated to a thickness of 2 μm. .

Wear Resistance Test Using the test equipment shown in Figure 4 a and b, a load of 300 g was applied to the line roller 7, and the fishing line 3 was run for 200 km at a speed of 4 m/sec. Grooves with a diameter of 6 to 10 μm were formed at the ivy points, and comparative product B, invention product C, and invention product E left slight wear marks, while invention products D and invention product F showed almost no wear marks.

Fishing line life test Using the test equipment shown in Figure 4 a and b
How many km is the fishing line Ginrin No. 1.5 at 4m/sec and a load of 300g?
I tested to see if the thread would break when I ran it.

Comparative product A broke the thread at 3 to 27 km, while invented products C and D exhibited a running effect at 70 to 80 km. In addition, the yarn life of comparative product B was 160 to 180 km, while the yarn life of invented products E and F was 190 to 300 km or more.

Example 2 SiC single guide ring (comparison product) with outer diameter 15 mm, inner diameter 11 mm, and height 2.9 mm, and SiC single guide ring
An impact resistance test was conducted using a product coated with TiN (invented product) to a thickness of 3 μm using arc discharge type high vacuum ion plating method. The impact resistance test was conducted by dropping the comparison product and the invention product from a predetermined height onto a cement floor.

The comparison product was 50% damaged when dropped from a height of 2m, but the invented product was only 10% damaged when dropped from a height of 2m, and 40% damaged when dropped from a height of 4m.

Example 3 A plain ceramic material was coated with TiN and barrel polished to a shine of 0.1S or less, resulting in a brilliant luster. Furthermore, by randomly coating TiN in a curved shape and then partially coating TiC, a unique pattern of gold and silver colors was obtained, and fashionability could be imparted.

[Effects of the Invention] Compared to conventional ceramic line rollers, guide rings, line rings, and line guides, the fishing gear parts produced by the method according to the present invention have excellent abrasion resistance, impact resistance, slipperiness, extended fishing line life, and It can have excellent color fashionability.

[Brief explanation of the drawing]

FIG. 1 is an enlarged schematic diagram of ceramic fishing gear, in which a is coated with a coating film according to the present invention;
b shows the ceramic base material, and c shows the micro-destruction of the ceramic base material due to the friction of the nylon fishing line. FIG. 2 shows a coating film with undulations, and FIG. 3 shows a diagram in which only the fine pores and cracks on the surface of the ceramic are filled with metal or ceramic. FIG. 4 shows a schematic diagram of the test apparatus of the example. DESCRIPTION OF SYMBOLS 1...Void part of ceramics base material, 2...Easy-to-break corner around 1, 3...Fishing line, 4...Ceramics microfracture powder, 5...Coating film, 6...Ceramics base material.

Claims (1)

[Scope of Claims] 1. A method for manufacturing a fishing gear part whose base material is made of ceramics, characterized in that at least the contact surface with the fishing line is coated with metal or ceramics. 2. A method for manufacturing fishing gear parts whose base material is ceramic, which comprises coating at least the surface that contacts the fishing line with metal or ceramics, and then physically or chemically removing only the surface layer.