JPH0631985U - Cutting tool with electroless composite plating - Google Patents

Abstract

(57) [Summary] (Purpose) To provide a blade that has a longer life by eliminating the adhesion of a material containing or compounding an adhesive substance during cutting. (Structure) In order to eliminate the adhesion of an adhesive substance, particles or fibers of a non-adhesive exfoliation-containing fluorine-containing compound are dispersed and co-deposited in a matrix. Further, the matrix is characterized in that a coating is formed by electroless nickel and nickel alloy plating in order to prolong the life of the blade.

Description

[Detailed description of the device]       [0001]     [Industrial applications]   This device is a binding material, adhesive tape material, electrical insulation tape material, wood plastic A blade for cutting and cutting materials that contain or compound adhesive materials such as Sticky substance adheres to the object. Prevents adhesion of this sticky substance and improves wear resistance of the cutting edge In order to make the cutting edge contain non-adhesive peelable particles or fibers, wear resistance By forming a peelable coating with good adhesive property, it prevents sticky substances from adhering to the cutting edge and extends the life. It is about the extended blade.       [0002]     [Prior art]   Conventionally, glue or adhesive has been used to contain or combine adhesive substances such as thermosoftening materials. When cutting the material, the adhesive material accumulates and accumulates on the cutting edge. , There was such a problem. (A) A work process for removing the sticky substance attached to the cutting edge was required. (B) Due to the adhesion of sticky substances, the sharpness is reduced in a short time and the life of the blade is exhausted. I was there. (C) In order to prevent this adhesion, silicone oil with excellent water and oil repellency, etc. Of lubricant was applied to the cutting edge. These lubricants disappear in a short time and Since the sticky substance adheres for a long time, it has to be repeatedly applied.   In addition, the applied lubricant adheres to the product, causing problems such as colored stains and oil stains. Was. (D) Lubricity Even with Teflon powder coating, which has good releasability, the releasability is excellent. By doing so, the adhesive strength to the blade is weak and the edge portion of the blade immediately peels off during use. It will come off. (E) The releasable coating formed by electro-composite plating has a thick coating on the cutting edge. Since it becomes round, it cannot be used as a cutting edge, and it requires a polishing process to recreate the cutting edge. Was there. Therefore, it cannot be applied to blades with a large number of blades such as saw blades. (F) The TiC / TiN coating has excellent wear resistance and is suitable for blades, but it does not peel easily. It was also difficult to apply to this blade because it was expensive.       [0003]     [Problems to be solved by the device]   Cutting tools for cutting or cutting materials containing or compounding adhesive substances are described below. There is a drawback. (A) The surface of the cutting edge of the blade will be covered with the sticky substance of the work piece and used. Sharpness deteriorates in a short time after starting. (B) In order to correct the deterioration of sharpness, work to remove the adhered sticky substance I needed it. (C) The cutting force of the cutting edge increases due to the adhesive force of the adhered sticky substance. Therefore, the wear of the cutting edge is promoted and the durability of the cutting tool is reduced. (D) Oil film with good lubricity and peelability on the cutting edge Even if a coating film is formed, it will be consumed during use. It can be used for a long time as the time until the sticky substance adheres quickly increases a little. Absent. (E) For large blades and saw blades with continuous cutting edges It didn't happen. (F) Electroplating method Film formed by ion bleaching method (PVD method) Is a re-polishing process in which the blade edge is rounded and the blade edge is exposed to use it as a blade. Was needed.   It was devised to solve these drawbacks.     [0005]   [Means for solving problems and their support]   The electroless plating method is used to strongly adhere to the cutting edge of the blade to ensure a uniform film thickness and wear resistance. Forming a matrix coating of nickel and nickel alloys. In addition, Particles or fibers of fluorine-containing compound are dispersed and co-deposited into the tricks for non-adhesive peelability. Make an excellent cutlery. With these, long-life blades that do not adhere to sticky substances Completed   The electroless plating method makes it easy to control the film thickness and produces a uniform film thickness (Fig. 1-2). Can be done. Therefore, even after the plating, the shape of the cutting edge formed by the sharpening process at an acute angle The rest can be used as a blade without going through the re-polishing step.   The electroplating method and the ion plating method (PVD method) apply electric current to the tip and corners. Density is concentrated and the coating on that part becomes thicker, and the tip tip becomes thicker and sharper. It becomes rounded (Fig. 2-3) without the corners. Therefore, the blade tip is used as a cutting tool Requires a re-polishing step to make the angle sharp.   In addition, a metal matrix of electroless composite plating is used to improve the durability of the blade. Ni-P, Ni-B If you want a higher hardness matrix, Ni-W -P, Ni-WB. W, P, B have high hardness and amorphization due to precipitation hardening It is suitable because of its excellent wear resistance and wear resistance.   When cutting or cutting a material containing or compounding an adhesive substance, In order to prevent deterioration of sharpness due to adhesion of adhesive substances in a stable state for a long time, Adhesion to the blade edge is stable and does not come off for a long time due to the combined plating method Make a self-adhesive coating that does not adhere to volatile substances. The coating has non-adhesive release properties The particles or fibers of the fluorine-containing compound are dispersed and co-deposited by the composite plating method. It is a thing obtained.   Fluorine-containing compound particles are 30 microns or less, fibers are 20 microns or less in diameter The length is preferably 500 microns or less, and the dispersion amount is suitably 5 to 40% by volume.   Fluorine-containing compounds include tetrafluoroethylene resin, vinylidene fluoride resin, tetrafluoride Ethylene-6 fluorinated propylene copolymer resin 3 fluorinated 1 chlorinated ethylene resin Vinyl fluoride Resin Resin Particles such as fluorinated graphite and fibers are good.   Special tool steel as a blade material for electroless nickel composite plating High speed steel Cemented carbide Sintered diamond Carbon tool steel Electroless nickel and nickel A nickel alloy plating film can be formed.     [0006]   【Example】   Embodiments of the present invention will be described below. [1] Basic property grasp test   3% of the 5% vinyl acetate emulsion was added to a B-5 notebook (page 100). It was sprayed in a mist form with a spray gun in an amount of% to obtain a test material. Carbon tool For cutting slices with steel (material SK-5, quenched and tempered) with various surface-treated blades I tested more.   The result was judged as follows. {A} Durability of metal matrix   The wear is faster in the order of copper> tin> nickel. Cobalt peels off before the wear result appears. I got it.   The nickel-based alloy matrix had good durability. The order of performance is Ni- It was possible to evaluate WP> Ni-WB> Ni-P> Ni-B. Hardness and durability Non-adhesive peelable fluorine-containing compound particles or fibers in a matrix containing W If the amount of dispersed eutectoid exceeds 30% by volume, the adhesion to the blade becomes poor and the film suddenly peels off. The cutting tool came out and became unstable. Non-adhesiveness of {b} fluorine-containing compounds   Even with a dispersion eutectoid capacity of 3%, it shows better non-adhesiveness than untreated, but it is sticky as a blade Satisfactory cutting cannot be done due to the adherence of volatile substances.   If the dispersion eutectoid capacity exceeds 50%, the blade will slide too much and the slicing depth will become shallow. Therefore, the number of times of slicing for cutting increased. In addition, the fluorine-containing The area of the compound (non-adhesive inseparable) increased and peeling occurred.   The particle size of the fluorine-containing compound is 50 microns, the fiber diameter is 30 microns, and the fiber length is If it is more than 800 microns, the fluorine-containing compound part will become dented and sticky during use. The substance is caught mechanically. Also, the area of the low hardness part in the matrix is large. In particular, the heat applied during cutting markedly reduced the coating strength of that part. . [2] Mass production test   Weekly miscellaneous with a 3-way cutting blade for binding (70 mm width x 450 mm length x 10 mm thickness) Tested with a finishing cut to bind the magazine.   The results were as follows. {B} Cemented carbide blade (unprocessed blade)   The binding adhesive adheres to the entire surface with 3560 books, and when it reaches 3620 books, the weekly magazine Paper fibers remained in the traces and became the product limit of weekly magazines. {B} Cemented Carbide Blade (35% by volume, particle diameter 25 micron Poly Tetra Fluor B. Electroless Ni-P composite plating containing ethylene to a thickness of 10 microns Installed blade)   Adhesion of bookbinding adhesive was found slightly in 18040 books, and paper fibers remained the weekly magazine It was possible to cut 18240 books by the product limit. {C} Cemented carbide blade (30% by volume, fiber diameter 10 microns, fiber length 200 micro The electroless Ni-WP composite plating containing the vinylidene fluoride resin (Cutting tool constructed to a thickness of micron)   Adhesion for binding was found to be a little in 18120 books, and the paper fibers remained the weekly magazine. We were able to cut 18510 books by the product limit.   As a result, the number of books that can be cut in the finishing cutting process for weekly magazines has increased by a factor of five. .     [0007]   [Effect of device]   Electroless nickel and nickel alloy plating method, wear resistance and non-adhesion to the cutting edge By forming a film with peeling property (B) It is not necessary to apply a release agent lubricant such as syrincon oil. It was (B) As a result, it is no longer necessary to remove the sticky substances adhering to the product. . (C) The colored stains and oil stains on the product have disappeared. (D) Unlike coatings such as Teflon powder coating, particles and fibers of fluorine-containing compounds are gold. Since it is embedded in the metal matrix, it has a strong adhesive force and is stable for a long time. As a result, the non-adhesive peelability of the blade can be maintained for a long time. (E) Ni-P, Ni-B, Ni-WP, Ni-WB metal matrix Obtained excellent durability. (F) It has become possible to apply it to blades that have continuity, such as size and saw blade.   Due to the above effects, the service life of the blade can be extended and the cost can be significantly reduced, leading to industrial development. It can greatly contribute to

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows a cutting edge shape formed by an electroless composite plating method. FIG. 2 is a cutting edge shape formed by an electroplating method / ion plating method. [Explanation of symbols] 1 Material of blade edge 2 Coating film formed on blade edge (electroless composite plating method) 3 Film formed on blade edge (ion plating PVD method)

Claims (1)

[Claims for utility model registration] 1. A blade characterized by uniformly forming a composite plating film in which particles or fibers of a fluorine-containing compound are dispersed and co-deposited on the blade edge of the blade. 2. The method according to claim 1, wherein the formation of the composite plating film in which the particles or fibers of the fluorine-containing compound are co-deposited is carried out by the electroless plating method. 3. The method according to claim 1, wherein the fluorine-containing compound is particles or fibers of a fluorine resin. 4 Fluorocarbon resin particles or fibers are tetrafluoroethylene resin,
4. A utility model registration claim which is tetrafluoroethylene hexafluoropropylene copolymer resin, trifluoromonochloroethylene resin, vinylidene fluoride resin, graphite fluoride particles, and vinyl fluoride resin. Method. 5. The method according to any one of claims 1 to 4, wherein the matrix of the plating film on which the particles or fibers of the fluorine-containing compound are codeposited is nickel or nickel alloy.