JPS6042019A - Preparation of planar molded piece - 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 is a compression laminate and a thermosetting tsukuda-maki laminate.

This invention relates to a method for continuously forming a Ka layer of a plate-shaped molded product such as a copper-clad thermosetting resin laminate for a short period of time.

Typically, this Copper 9Ix heat-cure laminate is manufactured in batches using a multi-stage press. This method includes a means for charging a laminated material such as Grifreg into a purple press, an RFC type short-form take-out stage, and a time required for molding.
Heat Transfer 4 was slow and required nighttime hours, requiring a large amount of one hour of labor.

Regarding the above, two parallel heating plates 1 are shown in Figure 1.
A method of manufacturing a laminated plate using a continuous process of zero pressure, depressurization, and release movements has been devised. In Figure 1, 2 is the percentage of material to be molded into the glyph-leg temple. 5 is the end plate, and the material to be molded is applied, depressurized, and molded using two parallel heating plates.
Open, move (return, select board KM type).

However, when using a parallel heating plate, #variation in the number of fallen fats in the city η
・The appearance is poor and the thickness deviation is large.

This means that the pressure applied to the material at the material supply port (part 4 in Figure 1) is 8 to 10 times more vc than the pressure applied within the heating platen.
This is 4 to 8 to 10 for the product after molding.
The double pressure mark is left behind when the Tato view is completed.

Don't be inventive! +, 9 essential materials to be molded with fc products! The amount of molding of this material is maintained at or above Vc11. During the parallel silence of π2 pieces, an unreasonable pitch is busy, and the force L1 pressure, pressure release, and open forest are repeated without moving.
In the method of manufacturing plate-shaped molded products in which continuous 8'J sheets of plate-shaped molded products are produced, pressurize two sheets of material to be molded in parallel.
J11 Pressure at the start of pressure R There is a special ridge-C which has a pressure gradient around the continuous opening.

The pressure at the start of pressurizing two sheets of material to be molded in parallel is 2.1! l! In order to maintain the pressure gradient in a consistent manner, the parallel ends should be shaped around 11 as shown in Figures 2 and 3, or with a protruding shape as shown in Figure 4. By:l! ! A pressure gradient can be created in M.

The parallel corner shown in Figure 2 has a radius of curvature of 20 to 5 Qmm.
It is preferable to have a spherical shape.

At the parallel corner shown in Figure 3, ' 100 to 1/20
Inclination margin of 0 [preferably planar shape 0 The protrusion length of the protrusion shape shown in Fig. 4 must be kept at least twice the transfer distance determined from the feed rate and the pressurization, depressurization, release, and transfer cycles. The parallel corner portions shown in FIGS. 2 to 4 can be made into spherical or slanted shapes, but only the material supply section is required.

By making the parallel corners spherical and inclined, a force of 11 pressure is applied to the two parallel sheets of material to be molded. Pressure at the start of pressurization? Although it is possible to create a continuous pressure gradient, the pressure applied in this part is from the layer a to the layer n.
Maintain at least 5% of the high pressure applied. As for the pressure gradient, 1 distance from the surface pressure part is 1. >1. When s lI +
Pressure P at point 61, Pt becomes Pa (Pg)
<Ding 0 Matata.

Depending on the degree of roughness of the protruding part, a continuous temperature gradient can be achieved by changing the shape of the protruding part, if necessary.
If the silent end part is made as shown in Figures 2 to 4, the thickness will increase continuously from a constant thickness and bifurcation will occur, and the intermittent 1 part will be subject to localized surface pressure that occurs in the parallel silent case. prevent 't''
By waiting for a continuous pressure gradient to occur before the spring plate is opened, the internal stress generated in the spring plate becomes less than the internal stress that would occur when the spring plate is parallel, thereby preventing damage to the spring plate. The molding materials used in the present invention are small and can prevent appearance defects.
Dry prepreg, thermosetting resin impregnated with reinforcing materials such as short fibers and granular fillers. Using the five types of R1 history shown in Figure 4), Figure 1 shows the similar thickness deviations when continuously laminating & manufacturing by the unprinted method.
Ta1. Comparison of pig plates R Table 1 below shows the case of multi-stage braces for comparison. 1”1 Paper base phenolic resin copper clad di-planted board Busy speed [1,0 m
/1T14 n, feed pitch 1001111+17JL
Pressure, depressurization.

Open and transfer 1 cycle 6 seconds Projection length δ 250n 1m 35 Omm on the projection part Heat M button &-170't; ~190
Continuously molded at ℃ pressurization pressure 90kg/protrusion end end pressure sokgαf/, good outer shell 7+: Product [Excellent results π0 Example 2 Glass drowning epoxy 49. (Including steel clad laminate, speed 1-0"/min feed speed + Oll m+l+
Pressurize, depressurize, release, transfer/f-cru 6 seconds Beautiful length 25
0mn1 protruding part thickness 250111 fever degree 150~
Continuous J molding was performed at 170° C., 7 Jl + pressure of 40 kg/, and a pressure of 20 kg/- at the extreme end of the extrusion section, resulting in a highly desirable product.

[Brief explanation of drawings]

Figure 1 is a 7J<Ding Bobun map of a plate-like product. Figures 2 to 4 are the heat-coated [IJ[monzu busy 7J<ding]. Explanation of symbols 1. Heat board 2. Paulownia wood to be molded 5. Mirror board

Claims (1)

[Claims] 1. Required materials for molding! l amount r molding of this material m
It is supplied with an appropriate pitch t between two parallel heating plates maintained at rt or higher, and the process of pressurization, depressurization, release, and movement is repeated.
In the manufacturing method of plate-shaped molded products that continuously manufactures plate-shaped molded products, the pressure at the start of pressurization in which the material to be molded is pressurized with two parallel heating plates is continuously created with a pressure gradient. A method for manufacturing a plate-shaped molded product characterized by r. 2. At least the material supply S of the parallel heating plate is not parallel,
Hot board 1! ll'i? 2. A method for producing a temporary shape or molded product according to claim 1, which uses two parallel heating plates that are tilted. 6. Manufacture of a plate-shaped molded product according to claim 1, in which at least 1% of the parallel heating plates are formed with a protruding part and 7'C two parallel heating plates are used. .