JPH0653404B2 - Molded sound absorbing material - Google Patents
Molded sound absorbing materialInfo
- Publication number
- JPH0653404B2 JPH0653404B2 JP61044796A JP4479686A JPH0653404B2 JP H0653404 B2 JPH0653404 B2 JP H0653404B2 JP 61044796 A JP61044796 A JP 61044796A JP 4479686 A JP4479686 A JP 4479686A JP H0653404 B2 JPH0653404 B2 JP H0653404B2
- Authority
- JP
- Japan
- Prior art keywords
- molding
- base material
- absorbing material
- sound absorbing
- molded
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Laminated Bodies (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Moulding By Coating Moulds (AREA)
Description
【発明の詳細な説明】 (産業上の利用分野) 本発明は消音器の外箱、エンジンカバー等の断熱性、吸
音性及び剛性が要求される部分に用いる成形吸音材に関
する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a molded sound-absorbing material used in a part of a silencer such as an outer box and an engine cover where heat insulation, sound absorption and rigidity are required.
(従来の技術) グラスウール等をマット状に成形して成形母材とし、こ
の成形母材表面に成形剤を塗布した後、型間で加熱しつ
つ所望の形状に成形するようにした成形吸音材は知られ
ている。(Prior Art) Molded sound-absorbing material that is molded into a matte material such as glass wool to form a molding base material, and after the molding agent is applied to the surface of the molding base material, it is molded into a desired shape while heating between molds. Is known.
斯る成形吸音材の成形手順を第3図に基づいて説明する
と、先ず第3図(a)及び(b)に示すように、容器
(1) 内に満している成形剤(2) を刷毛(3) によってマッ
ト状グラスウール等の成形母材(4) 表面に塗布し、これ
を第3図(c)に示すように上下の成形型(5),(6) 間に
セットし、成形型(5),(6) を加熱下において合せて第3
図(D)に示す如き成形吸音材(7) を得る。The procedure for molding the molded sound absorbing material will be described with reference to FIG. 3. First, as shown in FIGS. 3 (a) and 3 (b), a container
(1) Apply the molding agent (2) filled in the inside with a brush (3) to the surface of the molding base material (4) such as matte glass wool, and apply this to the top and bottom as shown in Fig. 3 (c). Set between the molds (5) and (6), and mix the molds (5) and (6) under heating to
A molded sound absorbing material (7) as shown in FIG.
ここで、成形吸音材(7) は第4図に示すように、成形母
材(4) 内に成形剤(2) の一部が含浸し、成形母材(4) の
表面には成形剤(2) が硬化した硬化層(8) が形成されて
いる。ところで、成形母材(4) 表面には凹凸(4a)があ
り、このため、この凹凸(4a)に倣って成形母材(4) 表面
に形成される硬化層(8) には凹凸(8a)が生じ、この凹凸
(8a)を埋めるべく従来にあっては、第3図(E)に示す
ように、一旦成形された成形吸音材(7) の表面にコーテ
ィング材(9) を載置し、第3図(F)に示すように再度
成形型(5),(6) を型合せし、硬化層(8) の表面にコーテ
ィング層(10)を形成するようにしている。Here, as shown in FIG. 4, the molded sound absorbing material (7) is impregnated with a part of the molding agent (2) in the molding base material (4), and the molding agent is formed on the surface of the molding base material (4). A hardened layer (8) is formed by hardening (2). By the way, there are irregularities (4a) on the surface of the forming base material (4), and therefore, the hardened layer (8) formed on the surface of the forming base material (4) following the irregularities (4a) has unevenness (8a). ), This unevenness
Conventionally, as shown in FIG. 3 (E), the coating material (9) is placed on the surface of the molded sound-absorbing material (7) which has been molded to fill the (8a). As shown in F), the molds (5) and (6) are re-matched to form the coating layer (10) on the surface of the hardened layer (8).
(発明が解決しようとする問題点) 上述したように従来にあっては、硬化層の表面に残る凹
凸を埋めるべく、一旦成形した後、再度コーティング材
を硬化層表面に載置した成形を行わなければならず、成
形工程が複雑となり、コスト的にも不利がある。(Problems to be Solved by the Invention) As described above, in the related art, in order to fill up the irregularities remaining on the surface of the cured layer, the molding is performed once, and then the molding is performed by placing the coating material on the surface of the cured layer again. However, the molding process is complicated and there is a cost disadvantage.
(問題点を解決するための手段) 上記問題点を解決すべく本発明は、成形母材表面に塗布
する成形剤中に繊維状の補強材を混練するようにした。(Means for Solving the Problems) In order to solve the above problems, in the present invention, the fibrous reinforcing material is kneaded in the molding agent applied to the surface of the molding base material.
(作用) 成形剤中に含まれる補強材が成形母材の凹部に架橋する
ように入り込み、成形母材の凹部に倣った凹部が硬化層
に生じない。(Function) The reinforcing material contained in the molding agent penetrates into the concave portion of the molding base material so as to crosslink, and a concave portion following the concave portion of the molding base material does not occur in the cured layer.
(実施例) 以下に本発明の実施例を添付図面に基いて説明する。(Example) Below, the Example of this invention is described based on an accompanying drawing.
第1図は本発明に係る成形吸音材の成形工程を示す図で
あり、本発明にあっては先ず第1図(a)乃至(c)に
示すように、容器(1) 内に熱硬化性樹脂溶液等の成形剤
(2) を満し、次いで成形剤(2) 中に繊維状補強材(11)を
投入し、攪拌器(12)によって成形剤(2) と補強材(11)と
を混練する。ここで補強材(11)としては、グラスウー
ル、セラミック繊維、金属繊維或いはポリエステル繊維
等の短繊維とする。FIG. 1 is a diagram showing a molding process of a molded sound absorbing material according to the present invention. In the present invention, first, as shown in FIGS. 1 (a) to (c), thermosetting is performed in a container (1). Molding agent such as resin solution
After filling (2), the fibrous reinforcing material (11) is put into the molding agent (2), and the molding agent (2) and the reinforcing material (11) are kneaded by the stirrer (12). Here, the reinforcing material (11) is a short fiber such as glass wool, ceramic fiber, metal fiber or polyester fiber.
次いで、第1図(D)に示すように、上記補強材(11)が
混練した成形剤(2) を刷毛(3) 等により成形母材(4) 表
面に塗布する。尚、刷毛(3) で塗布する代りに成形母材
(4) を直接容器(1) 内に投入してもよい。また成形母材
(4) はグラスウール又はセラミック繊維等の無機繊維、
或いはポリエステル等の有機繊維を適当な長さに切断
し、これにローラ加圧及びニードリングを施しマット状
としたものを用いる。Then, as shown in FIG. 1 (D), the molding agent (2) kneaded with the reinforcing material (11) is applied to the surface of the molding base material (4) with a brush (3) or the like. In addition, instead of applying with a brush (3), a molding base material
(4) may be placed directly in the container (1). Molding base material
(4) is an inorganic fiber such as glass wool or ceramic fiber,
Alternatively, an organic fiber such as polyester is cut to an appropriate length, and roller-pressed and needling is applied to this to make a mat-like one.
このように成形母材(4) 表面に成形剤(2) を塗布する
と、成形剤(2) の一部は成形母材(4) 内に侵入し、その
他の成形剤(2) は成形母材(4) 表面に層を形成する。そ
して斯る成形母材(4) を第1図(E)に示すように上下
の成形型(5),(6) 間にセットし、第1図(F)に示すよ
うに成形母材(4) を型(5),(6) 間でホットプレスするこ
とで、所定形状の成形吸音材(7) を得る。When the molding agent (2) is applied to the surface of the molding base material (4) in this way, a part of the molding agent (2) penetrates into the molding base material (4) and the other molding agents (2) flow into the molding base material (2). A layer is formed on the surface of the material (4). Then, the molding base material (4) is set between the upper and lower molding dies (5) and (6) as shown in FIG. 1 (E), and the molding base material (4) is set as shown in FIG. 1 (F). The molded sound absorbing material (7) having a predetermined shape is obtained by hot pressing the (4) between the molds (5) and (6).
成形吸音材(7) は第2図の断面図に示すように、成形母
材(4) 表面に成形剤が硬化してなる硬化層(8) が形成さ
れ、また成形母材(4) 及び硬化層(8) のいずれにも補強
材(11)が混在している。更に成形母材(4) の凹部(4a)部
分には、補強材(11)が架橋しているため凹部が補強され
成形母材(4) の凹部(4a)に倣って硬化層(8) に凹部が形
成されることがない。As shown in the sectional view of FIG. 2, the molded sound absorbing material (7) has a hardened layer (8) formed by hardening of the molding agent on the surface of the molded base material (4), and the molded base material (4) and The stiffener (11) is mixed in each of the hardened layers (8). Further, since the reinforcing material (11) is cross-linked in the concave portion (4a) portion of the molding base material (4), the concave portion is reinforced and the hardened layer (8) is imitated following the concave portion (4a) of the molding base material (4). No recess is formed in the.
(発明の効果) 以上に説明した如く本発明によれば、成形吸音材の母材
中及び硬化層中のいずれにも補強材が混在しているた
め、成形吸音材の剛性が向上し、また従来の如く硬化層
の表面に更にコーティング層を形成する必要がないので
成形工程を大巾に簡略化することができる等多くの効果
を発揮する。(Effects of the Invention) As described above, according to the present invention, since the reinforcing material is mixed in both the base material and the hardened layer of the molded sound absorbing material, the rigidity of the molded sound absorbing material is improved, and Since it is not necessary to further form a coating layer on the surface of the hardened layer as in the conventional case, the molding process can be greatly simplified, and many effects are exhibited.
第1図(a)乃至(F)は本発明に係る成形吸音材の成
形工程を示した図、第2図は同成形吸音材の断面図、第
3図(a)乃至(F)は従来の成形工程を示した図、第
4図は従来の成形吸音材の断面図である。 尚、図面中(2) は成形剤、(4) は成形母材、(5),(6) は
成形型、(7) は成形吸音材、(8) は硬化層、(11)は補強
材である。1 (a) to (F) are views showing a molding process of a molded sound absorbing material according to the present invention, FIG. 2 is a sectional view of the molded sound absorbing material, and FIGS. 3 (a) to (F) are conventional drawings. FIG. 4 is a cross-sectional view of a conventional molded sound absorbing material, showing the molding process of FIG. In the drawing, (2) is a molding agent, (4) is a molding base material, (5) and (6) are molds, (7) is a sound absorbing material, (8) is a hardened layer, and (11) is a reinforcement. It is a material.
Claims (1)
成形母材内部に成形剤を含浸せしめるとともに成形母材
表面に成形剤からなる硬化層を形成してなる成形吸音材
において、前記成形剤は繊維状の補強材を含んでいるこ
とを特徴とする成形吸音材。1. By applying a molding agent to the surface of the molding base material,
A molded sound-absorbing material obtained by impregnating a molding agent inside a molding matrix and forming a hardened layer of the molding agent on the surface of the molding matrix, wherein the molding agent contains a fibrous reinforcing material. Molded sound absorbing material.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP61044796A JPH0653404B2 (en) | 1986-02-28 | 1986-02-28 | Molded sound absorbing material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP61044796A JPH0653404B2 (en) | 1986-02-28 | 1986-02-28 | Molded sound absorbing material |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS62201236A JPS62201236A (en) | 1987-09-04 |
JPH0653404B2 true JPH0653404B2 (en) | 1994-07-20 |
Family
ID=12701381
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP61044796A Expired - Lifetime JPH0653404B2 (en) | 1986-02-28 | 1986-02-28 | Molded sound absorbing material |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0653404B2 (en) |
-
1986
- 1986-02-28 JP JP61044796A patent/JPH0653404B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPS62201236A (en) | 1987-09-04 |
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