JPS6044313A - Method of molding frp - Google Patents

Abstract

PURPOSE:To make it easy to the removal of a product after molding by a method of molding FRP wherein a metal male mold and a female mold made of an elastomer are used and the thermal expansion pressure of the elastomer is used in the molding, the method being characterised in that the male mold of the elastomer is divided into several parts. CONSTITUTION:After a prepreg 2 of a carbon fiber/epoxy resin is placed in a female mold 1, separate members of a female mold 3 of an elastomer are put therein one by one. The top and the bottom of the molds are clamped between holding plates 4 in such a way that the expansion pressure of the silicone rubber will be exerted effectively, and they are put in an autoclave, wherein they are heated to 130 deg.C. After the curing, they are removed from the autoclave, the holding plates 4 are dismounted, the members of the male mold 3 are removed one by one, and the molded item is removed. Thus, the removal of the silicone rubbers 3 can be made easy and the removal of the product can be made easy.

Description

[Detailed description of the invention] A 'y'6 +Jj (Heat of CL silicone rubber entomer) kJ Field pressure T Utilizing the necessary method of forming FRP At @, charcoal fiber cord, Kevlar 131st item ``Usage 7.: <) is light chain, high strength, force, rari 1, widely used mainly for walls, space, and sports-related packaging. As for tlc71, the molding method is excellent.It doesn't use heavy metals, but uses vca nitrogen, caro pressure bag method, and onitokrepe molding.By the way, this Makabe *) II] Pressure back method, a molding method that takes advantage of the thermal expansion ratio of silicone rubber and other nidistomers when heated, is attracting attention as an alternative to autoclave molding. The current 0, IJ type is made of an elastomer such as C silicone rubber.For example, a concave shape is used for the GriGreg γ41. 2) Silicone Rubber 3-Inset% Furthermore, to prevent the thermal expansion pressure of the silicone rubber from escaping, use a pressing plate to prevent the silicone rubber from escaping.
This can be done by heating the casing, or by using a vacuum, 11-pressure bag method, or autoclave method to form the product. If you do this, the thick silicone rubber that is used for thermal expansion will expand due to the heat.

This creates pressure in the filter and pressurizes it.
It's something. A-nitrogen, Caro pressure bag method, and autoclave molding can also be used to form backings and seals into a shape of 5A, and are used for forming beams.
Let's look at some examples.

In this way, when molded products such as VC'/silicone rubber convex type τ1 and I type τ are molded, the silicone rubber's J type force is very 1 (11 fields. Silicone rubber goose and box'PK'IR'f knee) It is to become a female figure like a tile. This is outside the τ demolding child.
'ib 'D' and silicone rubber τ must have more force than 11e7I:ke7'L, so the silicone comb, molded product, mold t1 and light may be difficult 4)
Ru. Second, since the silicone rubber swells when it is heated, it is removed from the mold and placed inside the IC. For this purpose, molds, molded products, and silicone rubber are
Particularly, silicone rubber is used exclusively for heat treatment, but even though it is not available at all, it is difficult to use it at all. Zara-ni/j
After r = i+, the shape of the silicone rubber can, the arm shape of the molded product τ, and the elongation can be considered to cause buckling τ due to the force of the mold adjustment. Shilko sword) is a product that has become a product. ! 11 years ago, silicone comb demolding force 1 heat-r/S is required, and the molding cycle is extremely long (the molded product is deformed, the seat/i +
] ? [J-Suru Kamei.

The main points of this invention are 14' and 12.
゛) Good, molded VT: 1. silicone coats.

FRP for which elastomer thermal expansion pressure t, llJ
We would like to provide a molding method for this.

Thermal expansion t, lz)-1
= It is strange that the shape of FRP molded for 31T4u is divided into convex R parts made of elastomer! 1j Europe. When used in this way, it happens to be the same as above.

An elastomer protrusion inside the t-shaped mold! 1. Divide it into small pieces according to your busy schedule. In particular, when removing the mold, if you take out one piece, there will be a hole there, and the elastomer convex mold will stick out even when heated to 11. 'lx di-Ij'it type became easy, and elastomer convex molds were made one after another in the state type. Convex cut 11
) I, depending on the shape and thickness of the molded product in the split shape, 4" n, concave opening, and convex split iii +
f slope 1+! : It is preferable from the point of demolding q-1. Below, I will give an example of lol IM and criticize it.

(lol h1u example) C! ! 11:/I is a concave shape made of gold R3, and the second one is a convex shape with a silicone rubber surface.4). The convex part of the silicone rubber and the concave part of the vij
- Te half line (τ multi & Su division eyebrows, Teii.

Concave) - Lini carbon η ↓ A string cross - Epoxy 47J I"
1 Iri Prepreg 4 Hano'i (,Iko[j;s,min)j
i 3 fL 1'C convex ff! zl ke by 1ijJ 1
Insert it into +11- and set it. The 6th ward's flickering Vc; Jrli's upper and lower τ silicone rubber loops C
There is a pressure reduction 2 K 1-: iigu, J: ) K4 instep λ &
At 130°C in a 4N autoclave (for 1 person)
Cal fever in the box. Hardened bales.

Take out the autoclave, put q+++ gλ plate τ, 6 rind Ij corn comb t1 whole! ! j! !
L*-k'L is 1 item and 4 items! 19 L
-7t.

jJ'1. VC, J- It is easy to demold the silicone comb even when heated by a rolling mill, and the molded product + R + J can be easily demolded without any buckling or other defects.7'7.7. r
In addition, the silicone rubber sleeve convex type set to the four-in-one chair is easy to set up compared to the 711/'1 lift 8VC.
f'-R1 (comparative example) The same as in the example q VCk and silicone rubber base convex mold is not divided, but the other parts are the m4 column and the rotating Buddha (/94
・I have a molding meeting regarding this matter. The shape of the curvature, its convex shape, and the shape of the sword were made of silicone rubber.
Shil (1 round, 10 ears ↓ (No need to remove the mold) -1;
] When I made 4 forks and 1 soil, I put silicone rubber on the silicone rubber and put 1 giraffe + 1 friend on it. So I took out the member M I + friend, and took it out at 4 )) i.] Tos 11- and τ tC could not be removed from the mold.
1. ＋l'i, so that the vcJ 戎 molding form was tightened, tenorit', no l+4−Musazūs ('j drum-shaped busy heating process), so that the molding crystallization hr(: mold child) was made.

As mentioned above, as in the present invention, the concave mold of the entire area and the convex mold of the bollastomer crack are used, and the silicone rubber, etc. Enstomer mounting convex type γ minute ruri j4
-1'/''/,,) IcYosu, conventionally, silicone rubber can be demolded in just 1 minute, but in the molding of molded products, the demoldability of silicone rubber has been improved to a minimum. The accompanying molding cycle was also significantly shortened.

The method of "Xta, misfire" is symbiotic, similar to Takumi's method.

Force 111j Nibasog method, 1 sho use with autoclave arrow is also l:Ijii1=g.

[Brief explanation of drawings]

Figure 1 R Yu Kanasugi, 1' concave type, 2nd C Yu part obedience / this silicone rubber exhibition convex ni'! , blessings and blessings of , the 6th bad luck (ko gold i sex concave)
a: ! Ichime 1, cho Vsu 7c Tokoro ~ ■ 7 in the circle I scoop!
′)ゐ. I・J+−1Lj−)if redundant” 1 Kanagiri Haku double concave 111ν 2 Fiber leg 6 Convex nonconvex surface 4 Holding plate 5 Nut 6 Holt

Claims (1)

[Scope of Claims] 1. Molding using a concave type of metal fittings and a convex type of a nystomer group. ,
Layering method 2, elastomer or silicone rubber, total 51J required range, 1st self-fight FRP molding method 03, convex 40 minutes'fj! I circumference and concave type (V-hoko mouth 11177) / 1 song [
The FRP molding method according to item 2, in which the division is 71, the convex shape τ is used, and the outside of the range of the convex box is z1 small.