JPS58214085A - Flange made of fiber reinforced resin and its manufacture - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a fiber-reinforced resin 7 reinforced with long fibers in the circumferential direction.
The present invention relates to a lunge and a method for manufacturing the same.

Conical 7 by placing Qi/electronic core on thermosetting resin tube
A method of connecting all thermosetting resins by forming a flange and fitting and tightening a tapered 7 lange made of thermoplastic resin to this conical 7 lange part. A connection was formed. However, in this case, when the 7 flange with a taper is made of a thermoplastic resin material such as vinyl chloride wood 1, when the 7 flange 1' is tightened with the bolt/nut 2' as shown in FIG. Depending on the tightening condition, a 7-lunge 1' wave nail phenomenon may occur.
When the length of the gasket 3' increases, the tightening force weakens due to creep, etc., and the compressive force of the gasket 3' decreases, resulting in fluid leakage from the 70% portion.

Unexamined Japanese Patent Publication No. 56-344 has no such drawbacks.
Publication No. 26 discloses that a hollow disc is made by winding resin-impregnated glass fiber between the side plates of a mold provided with side plates. When attempting to drill a hole, the reinforcing fibers cause severe wear on tools such as drills, making it impossible to drill efficiently, and the work environment becomes poor due to the scattering of dust. There were drawbacks.

The present invention has been made in view of the disadvantages described in Sections 1-8, and has been made with the object of providing a method for easily forming a 7-lunge with improved circumferential deflection and creep phenomenon, and the gist thereof is as follows: 1. 7 made of fiber-reinforced resin, having an inner wall layer and an outer wall layer reinforced with long fibers and an intermediate layer reinforced with short fibers, and having bolt holes drilled in the intermediate layer.
lunge, and 2. The core body is provided with a pair of # parts, and the # parts are provided with a pair of # parts. The fibers are wound to the vicinity of the bottle hole to form an inner wall layer, and a molding material containing short fibers is supplied around the inner wall layer at the outside 1 of the bottle hole to form an intermediate layer [7, and further around the inner wall layer. The outer wall layer is formed by winding the long fibers impregnated with the thermosetting resin, and Nihin is inserted into the bottle hole before or after the formation of the intermediate layer, and is cured integrally. The invention consists in a method of manufacturing a seven-lunge made of fiber reinforced resin.

The present invention will be explained below based on the drawings.

First, the seven lunges made of fiber-reinforced resin of the present invention will be explained.

FIG. 1 is a front view showing an embodiment of the present invention, and FIG. 2 is a sectional view taken along line M-Jl in FIG. 1 and FIG.

1 is a 7-lunge made of fiber-reinforced resin, and a tenon ring part 11 is provided on the inner peripheral surface thereof. 7 Inner wall layer 3 of lunge 1
and outer wall layer 4#-1 thermosetting resin such as unsaturated polyester resin 30.40 and long fibers such as glass roving 31
．． 41, and is reinforced in the circumferential direction with long fibers 31.41. An intermediate layer 5 is provided between the inner wall layer 3 and the outer wall layer 40.
The middle IAI layer 5F is made of a molding material 6 made of the same thermosetting resin 60 as the inner and outer wall layers and short fibers 61 such as chopped glass strands added thereto. In addition to the molding material N6Fi and short fiber 61, powdered fillers such as lucium carbonate and talc or shirasu balloons,
It is also possible to add microscopic hollow bodies such as silica balloons.

Then, the intermediate M5 has equally spaced holes [% seat hole 2] on the same circumference.
, 2... are formed. Preferably, the thickness of the intermediate layer 5 is approximately the same as the diameter of the bolt hole 2.

Long fiber 31, 41 ke glass roving and other K.

It may be a glass rope krylos, a glass chopped strand cloak, a glass cloth, a glass surfing mat, or a short fiber such as a glass chopped strand may be used in combination.

Next, the manufacturing method of the present invention will be explained.

It is a Wr side view.

This is a core mold for forming a 7-lunge made of 7-key #jl l3jl-ized 1jθ, and a pair of flanges 711 and 713 are provided on the core body 71 having a tapered portion 712 on the outer circumferential surface. The core body 71 is removably attached to the rotating shaft 9 with a fixture 8 such as a NAND, and is configured to rotate 90 times@ on the rotating shaft. The m portion 711 is integrated with the core body 71, and the collar portion 713 is removably attached to the end surface of the core body 71.

The flanges 711, 713 are provided with a plurality of pin holes 12, 12, opposite each other on the circumference, at equal pitches of ffK, and the pin holes 12, 12, 7, bolt holes 2 of the runci 1,
A pin 13 for forming the is inserted. 1
0 is a ring for escape.

A glass roving or the like impregnated with a thermosetting resin such as unsaturated polyester 4# resin around the core mold 7 configured as above! #1 part 711 and 71 of core body 71 with f & fiber 14
3 to form the inner wall M3. Next, the bottle 13 is inserted into the bottle hole 12, and the space formed by the bottle 13 and the pin 13 is molded with a thermosetting resin such as an unsaturated polyester resin containing short fibers such as chopped glass strands. The material 6 is supplied to form an intermediate layer 5 having a thickness approximately equal to the diameter of the bottle 13.
After forming the outer wall layer 4 by winding the long fibers 14 impregnated with a thermosetting resin around the intermediate layer 50 to a required thickness, the outer wall layer 4 is heated at room temperature to be cured integrally. After curing, the bottle 13 is taken out and the core mold 7 is demolded to produce a fiber-reinforced resin 7-lunge provided with bolt holes 2.

Incidentally, after forming the inner wall layer 3, the bolt hole 2 is formed by forming the intermediate layer 5 and the outer wall-4 in the same manner as in the above embodiment without inserting the bottle 13 into the hole 12. The bottle 13 may be inserted into the hole 12 after the formation of the hole 12 is completed. At this time, it is preferable to attach a two-part outer deaf ear having an inner concave shape substantially equal to the outer surface shape of the outer wall layer on the outer wall layer.

As shown in FIG. 5, the intermediate M5 is formed by inserting long fibers 14 such as glass a-pings impregnated with a thermosetting resin into a core mold 7.
After forming the inner wall layer 3 by winding it around the fibers 14 to a required thickness, the molding material 6 is supplied while inserting the bottles 13 one by one from arbitrary bottle hole positions, so that the long fibers 14 are formed into adjacent bottles 13. It may also be done by winding it so that it crosses the

In this case, since the intermediate layer is reinforced with 5t'f short fibers and continuous long fibers with no cut points, a product with better strength and hardness can be obtained.

As mentioned above, the fiber-reinforced resin flange of the present invention has an inner wall layer and an outer wall layer reinforced with long fibers in the local direction, so it has particularly excellent strength in the circumferential direction, and even when tightened with bolts, nuts, etc. It does not cause deformation such as wave peg phenomenon and has excellent long-term creep resistance, and since bolt holes are provided in the intermediate layer reinforced with short fibers, bolt holes can be easily installed without significantly reducing strength. It can be formed into

In addition, the method for manufacturing the seven-lunge made of fiber reinforced resin of the present invention is such that long fibers impregnated with thermosetting bIJIIL+ are placed around a core mold in which bottle holes are provided oppositely to each other in a pair of flanges, near the bottle holes. The inner wall layer is formed by winding the inner wall layer, and the intermediate layer is formed by supplying a molding material containing short fibers around the inner wall layer. Even if a bolt hole is formed in the 7-lunge by inserting it, the area around the bolt hole will be reinforced with short fibers, which can reduce the decrease in strength between the inner and outer wall layers. Moreover, it is possible to manufacture a fiber-reinforced resin 7-lunge having a core type with a simple structure and excellent strength in the local direction.

On the other hand, if a bottle is inserted into a layer in which long fibers are wound, a layer without reinforcing fibers will be created between the inner and outer layers, or a space will be created between the inner and outer layers, resulting in damage between the inner and outer layers.

Furthermore, even if an attempt is made to drive a VC pin after winding the long fibers, it will not be possible because the long fibers are wound under constant tension.

[Brief explanation of the drawing]

Fig. 1 is an iE side view showing one embodiment of the fiber-reinforced resin flange of the present invention, Fig. 2 is a sectional view taken along line M-If in Fig. Fig. 1 and Fig. 4 are cross-sectional views showing the second modified example, and Fig. 6 shows the usage state of the conventional heat=J plastic resin flange. 1... 7 lunges made of fiber reinforced resin, 11... Theno (
Part, 2... Bolt hole, 3... Inner wall layer, 31.41
...long fiber, 30.40.60...thermosetting resin,
4... Outer wall layer, 5... Intermediate layer, 6... Molding material,
61... Short fiber, 7... Core type, 71... Core body, 7
11,713...Brim part, 12...Bottle hole, 13...
- Bin, 14...Resin-impregnated long fiber. Patent Applicant Sekisui Chemical Co., Ltd. Representative Moto Toshito Fujinuma t Okayama Building Blocks Co., Ltd. Representative Toshio Yamaguchi @1 Figure @2flJξ
I ■ Figure 5 Figure 6 I

Claims (1)

[Claims] 1. It has an inner wall layer and an outer wall layer reinforced in the circumferential direction with long fibers, and an intermediate layer reinforced with short fibers, and bolt holes are drilled in the intermediate layer. 7 lunges made of fiber reinforced resin. A pair of flanges are provided on the two-core body, and the flanges include a long core impregnated with thermosetting resin between the core-shaped flanges in which a plurality of bottle holes are provided facing each other on the same circumference. The fibers are wound to the vicinity of the bottle hole to form an inner wall layer, a molding material containing short fibers is supplied around the inner wax layer to the outside of the bottle hole to form a Nakaoka layer, and further around the inner wall layer. A fiber characterized by forming an outer wall layer by winding long fibers impregnated with a thermosetting resin, and inserting pins into the bottle holes before or after forming the intermediate layer, and curing the fibers as one body. Manufacturing method for 7 lunges made of reinforced resin.