JPS5910743B2 - Method for manufacturing a top plate, support strip or formation board of a paper machine suction box with reinforcing material - Google Patents
Method for manufacturing a top plate, support strip or formation board of a paper machine suction box with reinforcing materialInfo
- Publication number
- JPS5910743B2 JPS5910743B2 JP16893480A JP16893480A JPS5910743B2 JP S5910743 B2 JPS5910743 B2 JP S5910743B2 JP 16893480 A JP16893480 A JP 16893480A JP 16893480 A JP16893480 A JP 16893480A JP S5910743 B2 JPS5910743 B2 JP S5910743B2
- Authority
- JP
- Japan
- Prior art keywords
- paper machine
- reinforcing material
- synthetic resin
- support strip
- top plate
- 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
Links
- 239000012779 reinforcing material Substances 0.000 title claims description 10
- 230000015572 biosynthetic process Effects 0.000 title claims description 8
- 238000004519 manufacturing process Methods 0.000 title claims description 5
- 238000000034 method Methods 0.000 title description 11
- 229920003002 synthetic resin Polymers 0.000 claims description 19
- 239000000057 synthetic resin Substances 0.000 claims description 19
- 239000000203 mixture Substances 0.000 claims description 18
- 239000011859 microparticle Substances 0.000 claims description 7
- 239000011256 inorganic filler Substances 0.000 claims description 6
- 229910003475 inorganic filler Inorganic materials 0.000 claims description 6
- 238000005187 foaming Methods 0.000 claims description 3
- 239000010419 fine particle Substances 0.000 claims description 2
- 230000005484 gravity Effects 0.000 description 9
- 239000000945 filler Substances 0.000 description 8
- 238000000465 moulding Methods 0.000 description 6
- 239000002245 particle Substances 0.000 description 5
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 4
- 239000003822 epoxy resin Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229920000647 polyepoxide Polymers 0.000 description 4
- 238000005266 casting Methods 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000004593 Epoxy Substances 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- 229920006248 expandable polystyrene Polymers 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 239000005350 fused silica glass Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 239000003082 abrasive agent Substances 0.000 description 1
- 238000009750 centrifugal casting Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 239000010451 perlite Substances 0.000 description 1
- 235000019362 perlite Nutrition 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920005749 polyurethane resin Polymers 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000011342 resin composition Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 229920006337 unsaturated polyester resin Polymers 0.000 description 1
Landscapes
- Paper (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Description
【発明の詳細な説明】
本発明は補強材入り抄紙機用サクションボックスの天板
、支持条片又はフオーメーシヨンボードの製造方法に関
する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a top plate, support strip or formation board of a reinforced paper machine suction box.
従来、抄紙機用サクションボックスの天板、支持条片又
はフオーメーシヨンボードを構成する合成樹脂成形品に
は、硬化に伴う収縮の低減や機械的性質などの向上を目
的としてかなり大量の充てん剤が使用される。Conventionally, synthetic resin molded products constituting the top plate, support strips, or formation board of paper machine suction boxes have been filled with a considerable amount of filler in order to reduce shrinkage during curing and improve mechanical properties. is used.
一般に使用される充てん剤は溶融シリカ、溶融アルミナ
、ガラスパウダー、雲母粉末などであるが、これらの充
てん剤は比重が大きいため、成形品の比重も１．５以上
、一般には１．８〜２．２程度のものとなり軽量化が要
求される抄紙機用サクションボックスの天板、支持条片
、フオーメーシヨンボードなどには不適当であつた。ま
たこれらの充てん剤は硬化収縮を低減することはできる
がゼロにすることは不可能で、成形品内部もしくは成形
品表面に異種材料、例えば金属やセラミックが併用され
る場合には、成形品がそつたりクラックが発生するなど
の欠点があつた。本発明はこれらの欠点を解決するもの
である。本発明は、発泡可能な合成樹脂の微小粒子と硬
化可能な合成樹脂組成物と無機質充てん剤との混合物を
あらかじめ補強材を入れておいた成形用金型内に注入し
、硬化可能な合成樹脂組成物を硬化させるとともに発泡
可能な合成樹脂の微小粒子を発泡させる補強材入り抄紙
機用サクションボックスの天板、支持条片又はフオーメ
ーシヨンボードの製造方法に関する。本発明で使用する
無機質充てん剤は微小中空球であることが好ましい。Generally used fillers include fused silica, fused alumina, glass powder, mica powder, etc., but since these fillers have a high specific gravity, the specific gravity of the molded product is also 1.5 or higher, generally 1.8 to 2. .2, making it unsuitable for use in paper machine suction box top plates, support strips, formation boards, etc., which require light weight. Furthermore, although these fillers can reduce curing shrinkage, it is impossible to eliminate it, and if different materials such as metals or ceramics are used together inside or on the surface of the molded product, the molded product may There were drawbacks such as warping and cracking. The present invention overcomes these drawbacks. The present invention produces a curable synthetic resin by injecting a mixture of microparticles of a foamable synthetic resin, a curable synthetic resin composition, and an inorganic filler into a mold in which a reinforcing material has been placed in advance. The present invention relates to a method for producing a top plate, support strip or formation board for a paper machine suction box with reinforcing material, in which the composition is cured and fine particles of a foamable synthetic resin are foamed. The inorganic filler used in the present invention is preferably microscopic hollow spheres.
本発明における発泡可能な合成樹脂の微小粒子とは、例
えば発泡性ポリスチロール粒子があげられるが、これに
制限されず発泡性エチレンを粉砕したものも使用可能で
ある。The foamable synthetic resin microparticles in the present invention include, for example, foamable polystyrene particles, but are not limited thereto, and particles obtained by crushing foamable ethylene can also be used.
発泡性ポリスチロール粒子の大きさは制限しないが、均
一な成形品を得るには小さい方が望ましい。硬化可能な
合成樹脂組成物としては、硬化剤、界面活性剤、溶剤等
を含む不飽和ポリエステル樹脂組成物、エポキシ樹脂組
成物、ポリウレタン樹脂組成物などが用いられる。Although there is no limit to the size of the expandable polystyrene particles, smaller particles are desirable in order to obtain a uniform molded product. As the curable synthetic resin composition, an unsaturated polyester resin composition, an epoxy resin composition, a polyurethane resin composition, etc. containing a curing agent, a surfactant, a solvent, etc. are used.
本発明において使用される無機質充てん剤は微小中空球
が望ましいが表面の硬さが要求される場合には溶融シリ
カ、溶融アルミナなどでも差しつかえない。The inorganic filler used in the present invention is preferably microscopic hollow spheres, but if surface hardness is required, fused silica, fused alumina, etc. may also be used.
微小中空球の例としては、フイライト（日本フイライト
製商品名）、シラスバルーン（三機工業株式会社製商品
名）、ガラスマイクロバルーン（東洋曹達工業株式会社
製商品名）、パーライト（東邦パーライト株式会社製商
品名）などがあげられ、単一もしくは複数の独立気泡か
ら成ることが望ましいが連続気泡を含むものであつても
差しつかえない。Examples of micro hollow spheres include Flulite (trade name manufactured by Nippon Fluite Co., Ltd.), Shirasu Balloon (trade name manufactured by Sanki Kogyo Co., Ltd.), Glass Micro Balloon (trade name manufactured by Toyo Soda Kogyo Co., Ltd.), and Perlite (trade name manufactured by Toho Perlite Co., Ltd.). (product name), etc., and it is preferable that it consists of a single or multiple closed cells, but it may also contain open cells.
発泡可能な合成樹脂の微小粒子を使用して、これを発泡
させて硬化に伴う収縮を補なうことにより成形品にひけ
やそり、クラツクなどが発生するのを防止することがで
きる。By using microparticles of a foamable synthetic resin and foaming them to compensate for shrinkage caused by curing, it is possible to prevent sink marks, warpage, cracks, etc. from occurring in molded products.
無機質充てん剤を多量に添加しても硬化収縮をゼロにす
ることは出来ず、粘度が高くなつて注形作業すなわち成
形作業が不可能になる。本発明は発泡可能な合成樹脂を
発泡させるので少量の配合でも硬化収縮を十分に補うこ
とができる。発泡可能な合成樹脂の微小粒子０．１〜３
０重量部、硬化可能な合成樹脂組成物３０〜１００重量
部、無機質充てん剤６０重量部以下（ただし０は含まな
い）の範囲が好ましい。Even if a large amount of inorganic filler is added, curing shrinkage cannot be reduced to zero, and the viscosity increases, making casting or molding impossible. Since the present invention foams a foamable synthetic resin, curing shrinkage can be sufficiently compensated for even with a small amount. Microparticles of foamable synthetic resin 0.1-3
The preferred range is 0 parts by weight, 30 to 100 parts by weight of the curable synthetic resin composition, and 60 parts by weight or less (excluding 0) of the inorganic filler.
本発明において、上記の材料から補強材入り抄紙機用サ
クシヨンボツクスの天板、支持条片又はフオーメーシヨ
ンボードを製造するに際して、一般の注形法のほか、加
圧ゲル化法、遠心注形法等が用いられるが、その成形法
には制限はない。In the present invention, when manufacturing the top plate, support strip, or formation board of a paper machine suction box containing reinforcing material from the above-mentioned materials, in addition to the general casting method, pressure gelling method, centrifugal pouring method, etc. There are no restrictions on the shaping method.
例えば一般的な注形法は成形用組成物に、必要に応じ充
てん剤を混合し、これを減圧下で脱泡し、次いで金型（
必要に応じて予熱されたもの）に減圧下もしくは、常圧
下で注入後、減圧下で脱泡した後、金型を加熱して硬化
させる方法である。加圧ゲル化法は、圧力容器内で成形
用組成物に必要に応じ充てん剤を混合、脱泡し、次いで
加圧して金型内に圧入し、加圧下で硬化させる方法であ
る。遠心注形法は、成形用組成物に必要に応じ充てん剤
を混合し、これを減圧下で脱泡し、次いで金型に注入し
た後金型の注入口を内側にして遠心力をかけ、もしくは
遠心力をかけた状態で金型に注入した後硬化させる方法
である。For example, a typical casting method involves mixing the molding composition with a filler if necessary, defoaming the mixture under reduced pressure, and then molding it (
This is a method in which the resin is injected into a mold (preheated as necessary) under reduced pressure or under normal pressure, defoamed under reduced pressure, and then heated and cured in a mold. The pressurized gelling method is a method in which a filler is mixed with a molding composition as required in a pressure vessel, defoamed, the mixture is then pressurized, the mixture is press-fitted into a mold, and the mixture is cured under pressure. In the centrifugal casting method, a filler is mixed with the molding composition as necessary, the mixture is defoamed under reduced pressure, and then poured into a mold, and centrifugal force is applied to the mold with the injection port inside. Alternatively, the material may be injected into a mold under centrifugal force and then cured.
本発明の実施例を説明する。Examples of the present invention will be described.
部とあるのは重量部である。実施例 １
エポキシ当量１８３〜１９３９／当量のエポキシ樹脂（
エピコート８１５）１００部に変性アミン硬化剤、ＥＨ
−５２１（旭電化製）６０部、発泡可能な合成樹脂の微
小粒子として直径０．１１ｎＬ以下の発泡性ポリスチロ
ール粒子（日立化成製６ＳＧグレード）２０部、比重約
０．７の微小中空球としてフイライト５２／７（日本フ
イライト製）２０部、比重約３．９の溶融アルミナ、Ｗ
Ａ◆４００（不二見研磨材工業製）１０部を常温で混合
し真空脱気したのち第１図に示す如く補強材２入りの常
温の抄紙機用支持条片１成形用の金型に注入した。Parts are by weight. Example 1 Epoxy resin with an epoxy equivalent of 183 to 1939/equivalent (
Epicoat 815) 100 parts modified amine curing agent, EH
-521 (manufactured by Asahi Denka) 60 parts, as microparticles of foamable synthetic resin, 20 parts of expandable polystyrene particles with a diameter of 0.11 nL or less (6SG grade, manufactured by Hitachi Chemical), as micro hollow spheres with a specific gravity of about 0.7 20 parts of Filite 52/7 (manufactured by Nippon Filite), fused alumina with a specific gravity of approximately 3.9, W
10 parts of A◆400 (manufactured by Fujimi Abrasive Industry Co., Ltd.) were mixed at room temperature, degassed under vacuum, and then poured into a mold for forming paper machine support strip 1 containing reinforcing material 2 at room temperature as shown in Fig. 1. did.
第１図ａは、抄紙機用支持条片の平面図、第１図ｂはそ
のＡ−Ａ断面図である。補強材は１．３゛ｎ厚さの鉄板
を２０１１×４０１ｓ０）Ｌ字形に曲げたものを使用し
た。注入して３時間後に金型を８０℃の加熱炉に投入し
てエポキシ樹脂を硬化させるとともに発泡可能な合成樹
脂の微小粒子を発泡させた。引吉続き８０℃で５時間硬
化させたのち金型から取り出したが硬化収縮に伴うひけ
、そりなどは生じなかつた。比重は１．１であつた。比
較例 １エポキシ当量１８３〜１９３９／当量のエポキ
シ樹脂（エピコート８１５）１００部に変性アミン硬化
剤ＥＨ−５２１６０部、微小中空球としてフイライト５
２／７（日本フイライト製）３０部、比重３．９の溶融
アルミナ、ＷＡ＋４００（不二見研磨材工業製）１０部
を常温で混合し真空脱気したのち第１図に示した常温の
抄紙機用支持条片成形用の金型に注入した。FIG. 1a is a plan view of a support strip for a paper machine, and FIG. 1b is a sectional view taken along the line A-A. The reinforcing material used was a 1.3-n-thick iron plate bent into an L-shape (2011 x 401s0). Three hours after injection, the mold was placed in a heating furnace at 80° C. to harden the epoxy resin and foam the foamable synthetic resin microparticles. After curing at 80° C. for 5 hours, the mold was taken out of the mold, but no sink marks or warpage occurred due to curing shrinkage. The specific gravity was 1.1. Comparative Example 1 100 parts of epoxy resin (Epicote 815) with an epoxy equivalent weight of 183 to 1939/equivalent, 160 parts of modified amine curing agent EH-52, and Filite 5 as micro hollow spheres.
30 parts of 2/7 (manufactured by Nippon Filite), fused alumina with a specific gravity of 3.9, and 10 parts of WA+400 (manufactured by Fujimi Abrasives Industry) were mixed at room temperature, vacuum degassed, and then the room temperature paper machine shown in Fig. 1 was prepared. The support strip was poured into a mold for molding.
補強材は実施例１と同じものを使用した。実施例１と同
条件で注入、硬化させたのち金型から取り出したが硬化
収縮に伴うひけが表面に生じており、又、全長２ｍの中
央部で２０７１Ｓそりが生じていた。比重は１．１であ
つた。本発明になる補強材入り抄紙機用サクシヨンボツ
クスの天板、支持条片又はフオーメーシヨンボードは、
その比重が１．０〜１．１と合成樹脂よりやや小さく、
しかも硬化に伴う収縮を発泡可能な合成樹脂の発泡で補
うため、ひけ、そり、クラツクなどを生じない。The same reinforcing material as in Example 1 was used. After being injected and cured under the same conditions as in Example 1, it was removed from the mold, but sink marks due to curing shrinkage had occurred on the surface, and 2071S warpage had occurred at the center of the total length of 2 m. The specific gravity was 1.1. The top plate, support strip, or formation board of the paper machine suction box with reinforcing material according to the present invention includes:
Its specific gravity is 1.0 to 1.1, which is slightly smaller than synthetic resin.
Moreover, because the shrinkage caused by curing is compensated for by the foaming of the foamable synthetic resin, sink marks, warpage, and cracks do not occur.
また比重の大きな充てん剤を成形品の一つの面に沈降さ
せることが出来、軽量でありながら耐摩耗性にすぐれる
。In addition, a filler with a large specific gravity can be deposited on one surface of the molded product, making it lightweight and excellent in wear resistance.
第１図ａは、抄紙機用支持条片の平面図及び第１図ｂは
そのＡ−Ａ断面図である。
符号の説明、１・・・・・・抄紙機用支持条片、２・・
・・・・補強材。FIG. 1a is a plan view of a support strip for a paper machine, and FIG. 1b is a sectional view taken along line A-A. Explanation of symbols, 1...Support strip for paper machine, 2...
...Reinforcement material.
Claims (1)
脂組成物と無機質充てん剤との混合物をあらかじめ補強
材を入れておいた成形用金型内に注入し、硬化可能な合
成樹脂組成物を硬化させるとともに発泡可能な合成樹脂
の微小粒子を発泡させることを特徴とする補強材入り抄
紙機用サクションボックスの天板、支持条片又はフオー
メーシヨンボードの製造方法。1. A mixture of foamable synthetic resin microparticles, a curable synthetic resin composition, and an inorganic filler is injected into a mold in which reinforcing material has been placed in advance, and the curable synthetic resin composition is injected into a mold. A method for producing a top plate, support strip or formation board for a suction box for a paper machine with reinforcing material, characterized by foaming fine particles of a synthetic resin that can be cured and foamed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16893480A JPS5910743B2 (en) | 1980-11-28 | 1980-11-28 | Method for manufacturing a top plate, support strip or formation board of a paper machine suction box with reinforcing material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16893480A JPS5910743B2 (en) | 1980-11-28 | 1980-11-28 | Method for manufacturing a top plate, support strip or formation board of a paper machine suction box with reinforcing material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57108139A JPS57108139A (en) | 1982-07-06 |
| JPS5910743B2 true JPS5910743B2 (en) | 1984-03-10 |
Family
ID=15877249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16893480A Expired JPS5910743B2 (en) | 1980-11-28 | 1980-11-28 | Method for manufacturing a top plate, support strip or formation board of a paper machine suction box with reinforcing material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5910743B2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61185710A (en) * | 1985-02-14 | 1986-08-19 | Nippon Telegr & Teleph Corp <Ntt> | Filler for optical cable |
| JPH03235905A (en) * | 1990-02-13 | 1991-10-21 | Sumitomo Electric Ind Ltd | Fiber for light transmission |
| GB2258235B (en) * | 1991-07-30 | 1995-10-11 | Filon Products Ltd | Improvements in or relating to fibre-reinforced plastics compositions |
| JPH06172471A (en) * | 1992-10-09 | 1994-06-21 | Henkel Hakusui Kk | Polymerization curable composition and molding or coating method using the composition |
| GB9602984D0 (en) * | 1996-02-14 | 1996-04-10 | Plasma Coatings Ltd | Foil blade |
| FR2839975B1 (en) * | 2002-05-23 | 2005-09-02 | Inst Francais Du Petrole | THERMOSETTING COMPOSITION COMPRISING AN AROMATIC POLYAMINE MODIFIED EPOXY RESIN AND AT LEAST ONE POROSITY AGENT |
-
1980
- 1980-11-28 JP JP16893480A patent/JPS5910743B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57108139A (en) | 1982-07-06 |
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