JPS60235843A - Fiber-reinforced plastic structure - Google Patents

Abstract

PURPOSE:A high-quality, light fiber-reinforced plastic structure groundable using a magnetic chuck, containing magnetizable fibers. CONSTITUTION:Carbon fibers, glass fibers, aramid fibers, etc. coated with a ferromagnetic metal (e.g. Ni, Co or Fe) or its alloy or compound; or fibers of a ferromagnetic material having a diameter of about 100mum or less are used as magnetizable fibers. Thus, a layer 1 made by incorporating about 10-75% magnetizable fibers into a thermosetting resin (e.g. an epoxy resin) and a layer 2 comprising a fiber-reinforced plastic are laminated together to form the titled composite structure (the specific gravity is 2.7 or less; the proportion of the layer containing magnetizable fibers to the total structure is 10vol% or more).

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a high-strength, high-elastic fiber-reinforced plastic structure that is a magnetic material.

More specifically, ffi! contains magnetized fibers. The present invention relates to high quality, lightweight fiber-reinforced plastics that can be used as rotor parts for switch motors, etc., and can be ground using an electromagnetic jack.

In recent years, $J with high strength, δ': 1 bullet M, light f1% h high 11 ability, using glass IN, Arami 1 to navy blue, υ long fiber, etc. as reinforcement materials! [Reinforced bufsdics are being used increasingly for sports, resistor products, spacecraft parts, and industrial 5':, R1TH.

It is difficult to reduce the weight of metal materials such as ore because of their high specific gravity and low specific strength, but fiber-reinforced plastics have a specific gravity (2,7) that is lower than that of aluminum, which is a typical eave IX3 metal material. Because of its excellent mechanical properties, it has been chosen as the 11th material for eaves hanging. However, currently, I
When trying to reduce weight and improve efficiency by using 7I as a material, it could not be used as a substitute for metal materials. In addition, &IN Reinforced Plus Book is a non-magnetic material, so it can be used with magnets used in mechanical go-to coins! Grinding using the magnetic jack method was difficult, and therefore, the machine for the cord-reinforced Zoshispook required fixing with a jig, which was extremely troublesome and costly.

The inventors of the present invention investigated this problem and found that the problem could be solved by including magnetizing 41N.

In other words, the present invention is a II miscellaneous reinforced plus deck structure containing magnetized #X miscellaneous. Furthermore, a more preferable arrangement of the magnetized fibers is a hybrid structure.

That is, in a hybrid structure in which layers containing magnetized fibers are arranged, the ratio of the layers containing magnetized fibers to the structure is 10% or more by volume, and the specific gravity of the entire structure is 2. It is a fiber-reinforced plus deck with a rating of .7 or less.

At the same time as this magnetic IIN reinforced plus deck structure 1 is attracted to the magnet, there is a tensile bullet hole of 30 to 360 kg/mm2 in at least a certain direction, a tensile elastic skewer of 2 to 35 tons/1111', and a specific gravity of 2
．． It is an age-old material with a rating of 7 or less. This hybrid ° structure m-fiber reinforced plastic structure is not attracted to the net if the 211j ratio of the layer containing the magnetized layer II is 10% or more by volume of the structure. I don't have one.

The content is preferably 30% or more. Fiber-reinforced silastic structure with 8!4 containing more than 30% magnetized fibers; Δ bodies are easily attracted to the net. This J:
Unadaka T! The fiber-reinforced plastic structure lJ has excellent properties, and the magnetic material is effectively used in electromagnetic parts such as sweater rotors and electromagnetic switches. In addition, it is suitable for use in sports, resistor supplies, spacecraft parts, and FT industry materials.It is also Ishikawa's material that can be machined easily during bending due to the use of magnets. With a hybrid structure in which a ferromagnetic metal plate is placed on a fiber-reinforced plastic book instead of a layer containing magnetized fibers, it is difficult to significantly reduce the weight, and the shear bullet holes at the interface between the metal plate and the fiber-reinforced plastic book are low. Undesirable.

The basic laminated structure of the magnetic fiber-reinforced plastic book is shown in the drawing.1゜Figure 1 shows the 8! It is an Imm structure. This laminated structure is suitable for work, for example, by adhering the surface of the layer containing magnetized fibers to a magnet and performing grinding 1- on the opposite surface. FIG. 2 shows a laminate structure of IIN reinforced plus deck with a layer containing reinforcing fibers in the central portion of the hybrid laminate. In this case, grinding can be performed on both sides of the fiber-reinforced plastic structure, making it suitable for the work. FIG. 3 shows a fiber-reinforced plastic laminate structure in which layers containing highly magnetized 1jAH are disposed on both outer sides of the hybrid laminate. This laminated structure is suitable for materials such as electromagnetic parts in which magnets are activated from both sides of the laminated plate. Also, the layer containing magnetized fibers does not necessarily have to be continuous as shown in Figures 1, 2, and 3, but may be an independent round bar or a layer with a triangular, square, etc. cross section as shown in Figure 4. It may be rod-shaped.

Such a laminated structure can be produced by press molding, A-crepe molding, matte tie molding, pull 1-lyusicon molding,
It is also possible to make a layer containing magnetized fibers by molding J and 'C' at the same time by molding J and 'C' in an inkjet mold, or by adding J and 'C' to a enclosing agent after molding separately. It can also be manufactured in one piece.

Magnetizuru I! Metal that is strong 11 bamboo rest! For example, carbon fibers, glass fibers, aramid fibers, silicon carbide fibers, carbon fibers coated with nickel, cobal l-1 iron, their alloys and compounds, manganese, chromium alloys and compounds, etc. This refers to abrasion of gold rays, which is a ferromagnetic material with a diameter of 100 microns or less.

The layer containing magnetized fibers is a thermosetting resin containing magnetized fibers in a fiber volume content of 10 to 75%, preferably 30 to 70%, such as Evo: 1 resin, ) J-nor resin, unsaturated Polynisful resin, polyimide resin, furan resin, etc. and thermoplastic resins, such as polyamide, polyethylene, polypropylene, borisdylene, polyvinyl chloride, boria J-bonate, borinocetal, polysulfone, A
BS1! It is composed of l-fat, polyolefin terephthalate-1, voriburunrarenotalate, polyphenylene-l-l-, and the like.

The Tactical Strengthening Plus Book is made of reinforced fibers such as carbon fiber, glass-capped acidamide fiber, boron fiber, silicone carhide fiber, polyamide 1-filament, polyamide 1-filament, cotton thread, etc., and thermosetting resin. λBa↓Polymer resin, phenolic resin, unsaturated polyester resin, polyimide resin, furan resin, etc.) Heat 1 plastic f1 resin, polyamide, etc.
Poly-1-Dyrene, Boryb [1-Pyrene, Borys-Dyrene, Polyvinyl chloride, Polycarbonate-1-, Polyacetal,
Polysulfone, HeBS resin, polyethylene phthalate, polybutrene terephthalate!・Reinforced with polyphenylene oxide, etc.

The present invention will be explained below with reference to Examples.

Example 1 7 micron diameter coated with 0.25 micron nickel
Strength type carbon fiber H (manufactured by Toho Beslon Co., Ltd., product name Besfufi 1 - MG) is pulled in one direction.
11m) with the same fiber direction on both sides of the bed - (+': % strong bullet hole charcoal wood fiber N (Tobu Beslon? J product name Hesuno...r(-lf') )) are aligned in one direction l, -J board, resin buri/rek (resin content m 3
8wt%, thickness O, 45mm) are stacked in two layers each.
, Koho 4ffl 130℃, JJ force 5kg/cm
The material was press-molded for 90 minutes at No. 7, and the physical properties of the material were measured. The results are shown in Table 1. 2 Two sheets of glass m11 epoxy resin fabric prepreg (resin content 4wt%, thickness 0.2IIIll) were coated with 0.25 micron of nickel on both sides of Φb.
'jfY7 micron high-strength type carbon fiber [F] (product name Besphite -N4C, manufactured by Toho Heslon Co., Ltd.) epoxy resin prep l nog (resin content M 38wt%, thickness 0.15n+m 9 at a temperature of 130℃ and a pressure of 5kg/cm'.
A hybrid tact reinforced plastic plate was manufactured by press molding for 0 minutes. Physical properties 1ift of this material were measured. The results are shown in Table 2 J0 Table 2

[Brief explanation of drawings]

Figure i1, Figure 2, Figure 3, and Figure 4 all represent the product 1tQ structure of the present invention. 1. Layer containing magnetized fibers 2. Fiber strength 1 Hyplus Book 3. Round bar with magnetized fibers in mind Special applicant: Toho Veslon Hayashi Shiki Company Attorney Doi = 2nd Department

Claims (2)

[Claims] (1) A fiber-reinforced plastic structure containing magnetized m-fibers. (2) In a hybrid structure in which a layer containing magnetized vAN is arranged, the ratio of the layer containing magnetized fiber is 10% or more by volume of the 4M structure, and the specific gravity of the structure is 2.1 or less.