JPS58211031A - Friction material - Google Patents

Abstract

PURPOSE:To prevent generation of rust and consequent delamination of pad material by giving the hole-provided part (mold part) and plate part of pad material a constant hardness (density) and thereby preventing water penetration from the mold part. CONSTITUTION:A preliminary molding 6 in double layer construction consisting of a semimetallic friction layer 1 and heat insulation layer 2 is made into a complex with a backing metal 3 by means of hot press, and tablets made of the same material as the heat insulation layer 2 or any other are set into the hole- provided part of this backing metal 3. Raised density of the heat insulation layer at its hole-provided part (mold part) as described above will prevent water intrusion from this part to give prevention against generation of rust. Consequently the friction material layer is prevented from delamination at the interface with the heat insulation layer.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a 21-2 friction material pad which is molded in a circular manner and protected by a heat insulating material on the circular side of the front surface friction material.

In the above 2 sets of friction materials, C is molded in the perforated part of the inner #rf% material No. 6 (molded part) is the part (non-molded part) that is not molded in the perforated part. Since the full + hair (hard 1 hair) is inevitably lower than the plate part that is in contact with the mold, moisture penetrates from this mold part! The shoulders are raised in the tray, #
There is a risk that the collar will melt away from the tape.

In addition, if the friction material on the front side is semi-metallic thread 4 raw material, the semi-metallic thread material will be used as shown in Figure 1.
and the 2-no material of the insulation layer (2). Due to bondage, these 2 no materials (out 2) 〃i their world II''(' mJ brutal T gold 8 also exist.

In the present invention, the hardness (density) of the perforated part (mold part) and the plate part of the pad material is set to K-1, and the penetration of moisture from the mold part is prevented by grouping several groups of such mermaids and applying a friction material. By preventing the shoulder from becoming damaged, the pad material is prevented from dissolving.

According to the l:l aspect of the present invention, the hardness of the mold part is immersed in moisture J2! One way to increase the pressure is to mold the mold part carefully.
The molded t! When inserting JT heat material, a convex part is provided in the perforated part of the heat press mold (there are cases where the level of the perforated part is already determined).

Hereinafter, the present invention will be explained in detail by way of example.

Example 1 As shown in Fig. 2, set the middle mold (C) and upper mold (Q) and heat the heat material 111112 in the main mold.
Fill the upper part with semi-metallic friction material 1-111 in a J-shape. Material rym +21 Mitsunaga Ran, Lt enough light J true.

Raise the upper mold (Q against the spring) and tighten it 4♂ into the upper mold (2) 2 and the middle mold (to).
) from the pressure Pl, and from the upper mold q, the pressure P is applied to the perforated part (C') k tJu, respectively, and the perforated part<C
The section #l and material layer (2) that is aimed at "Ru.

The desired product can be obtained by heat pressing the Urayu and Megumi Aλ combinations.

Example 2 As shown in Figure 3, semi-metallic thread binding material j-(11
Using a 2-no F14 preformed product (6) consisting of and lth heat material 1m +27, the back plate (3) is made by heat pressing.
In order to fit it together, a tablet made of the same or different material as the IT heat material (7) is inserted into the perforated part of the underside 131, and heat and pressure forming is performed.

Example 3 As shown in Fig. 4, semi-metallic 4 raw materials (1)
The preformed product (6) consisting of the heat insulating material layer t2J and
When performing JxJ hot press molding on 7, a convex part (C) was provided at one place corresponding to the perforated part (CI) of a standard hot press type.
Reduce the density of the perforated part.

As described above, according to the present invention, the d degree of the l#r heat material in the perforated part and the molded part is flat, which prevents water from entering from the chain part. Semi-metallic friction material 1-tdjrl &
We provide friction materials that do not have to worry about de-melting between the material and the surface of the material [
can be done.

[Brief explanation of drawings]

11A is an explanatory diagram of the conventional 2-piece set of 4 original pads,
Figures 2 to 51 to 4 are explanatory diagrams of Embodiments 1 to 3 of the present invention-C15. ■・・・Semi-metallic type No raw materials No 2...
...... ##S @)--I3...Front support 4...Mold part 5...Plate part 6--Preformed product 7- ...Tablet A...Top mold B...Medium C1D...Top mold CI...Perforated part Fig. 1 4 Fig. 2 Fig. 3 Figure 4

Claims (1)

[Claims] An RI friction material 21 characterized in that the friction material on the inner front side, the inner heat insulating material layer, and the back cover are molded into the inner hole part B1 of the inner cover. A patent in which the mold part of Vd'r heat material 1- was made into a dog by molding the mold part, f # request's 4 condolence (1) Kangen and Kai's 4 original defeat (3) # heat material no mold If, i, the density of the ℃ cough mold part is increased by inserting P-molded Moeen material in the part.
*Water axis circumference (1)” 41 observations of shellfish 8 self-published