JPS63159242A - Manufacture of fiber cement board - Google Patents
Manufacture of fiber cement boardInfo
- Publication number
- JPS63159242A JPS63159242A JP30678786A JP30678786A JPS63159242A JP S63159242 A JPS63159242 A JP S63159242A JP 30678786 A JP30678786 A JP 30678786A JP 30678786 A JP30678786 A JP 30678786A JP S63159242 A JPS63159242 A JP S63159242A
- Authority
- JP
- Japan
- Prior art keywords
- slurry
- concentration
- fiber cement
- mixed water
- papermaking
- 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.)
- Pending
Links
- 239000004568 cement Substances 0.000 title claims description 13
- 239000000835 fiber Substances 0.000 title claims description 12
- 238000004519 manufacturing process Methods 0.000 title claims description 9
- 239000002002 slurry Substances 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 7
- 239000000843 powder Substances 0.000 claims description 7
- 150000002500 ions Chemical class 0.000 claims description 6
- 239000002734 clay mineral Substances 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- 239000012783 reinforcing fiber Substances 0.000 claims description 4
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 3
- 239000003513 alkali Substances 0.000 claims description 3
- 239000012784 inorganic fiber Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 2
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 claims 1
- 229910001424 calcium ion Inorganic materials 0.000 claims 1
- 230000000052 comparative effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000010425 asbestos Substances 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 description 3
- 239000011707 mineral Substances 0.000 description 3
- 229910052895 riebeckite Inorganic materials 0.000 description 3
- 239000002356 single layer Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000005995 Aluminium silicate Substances 0.000 description 1
- 239000004113 Sepiolite Substances 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000011094 fiberboard Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229910052624 sepiolite Inorganic materials 0.000 description 1
- 235000019355 sepiolite Nutrition 0.000 description 1
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
（技術分野）
本発明は抄造法によυ製造される繊維セメント板の製造
方法に関する。DETAILED DESCRIPTION OF THE INVENTION (Technical Field) The present invention relates to a method for manufacturing a fiber cement board manufactured by a papermaking method.
（背景技術］
従来よシ、抄造法によシ繊維セメント板を製造すること
は知られている。この繊維セメント板を抄造法で製造す
る場合、抄造用スラリーの濃度な上げることは生産性向
上のために必要である。しかし、抄造バット内の抄造用
スラリーの濃度を上げることは濃度の不均一が生じやす
く、シート成形時の厚みのバラツキが大きくなシ、繊維
セメント板の品質（＠度）のバラツキが大きくなる欠点
がある。石綿使用量を５％よシ少〈或はゼロにする場合
、繊維としてパルプや有機繊維、無機繊維を用いるがこ
れらは分散性が悪く、抄造した場合、シートの厚みのバ
ラツキが大きく品質のバラツキが大きくＣ石綿１０９６
以上配合と比較して）なるものであった。(Background technology) It has been known to manufacture fiber cement boards by the papermaking method.When manufacturing fiber cement boards by the papermaking method, increasing the concentration of the slurry for papermaking improves productivity. However, increasing the concentration of the papermaking slurry in the papermaking vat tends to result in non-uniformity of the concentration, which leads to large variations in thickness during sheet forming, and increases the quality of fiber cement boards (@degrees). ) The disadvantage is that there is a large variation in the amount of asbestos used.When reducing the amount of asbestos used to less than 5% or zero, pulp, organic fiber, or inorganic fiber is used as the fiber, but these have poor dispersibility and when paper-formed, C Asbestos 1096 has large variations in sheet thickness and large variations in quality.
(compared to the above formulations).
（発明の目的）
本発明は上記実情に鑑みてなされたものであシ、抄造用
のスラリーの濃度を上げても濃度の不均一が生じ難く、
抄造法によシ品質のバラツキが生じ雌い繊維セメント板
を製造する製造方法を提供するものである。(Object of the Invention) The present invention has been made in view of the above-mentioned circumstances.Even if the concentration of slurry for papermaking is increased, non-uniformity in concentration is unlikely to occur.
The purpose of the present invention is to provide a manufacturing method for manufacturing female fiber cement boards in which variations in quality occur due to the papermaking method.
（発明の開示） 以下、本発明の詳細な説明する。(Disclosure of invention) The present invention will be explained in detail below.
スラリーを調整するための混合水は力／Ｉ／Ｖウムイオ
ン、アルカリイオン、硫酸イオン等を含むものである。The mixed water for preparing the slurry contains ions, alkali ions, sulfate ions, etc.
それは、工場生産する場合において混合水は循環水であ
る為にこれらのイオンを含むことになるものである。こ
の為に複鎖構造型の粘土鉱物でないカオリン等は分散の
効果があまり認められないものである０本発明に用いる
複鎖構造型の粘土鉱物粉はアタバμガイド、セピオライ
ト、バリゴスカイト等であ）、高濃度抄造用スラリーの
濃度分布を均一化させる為に増粘化するものである。複
鎖構造型の粘度鉱物粉の混合水への配合分散量は１〜５
％（重量％）が望ましい、この複鎖構造型の粘度鉱物粉
は混合水にまず分散させ次に、セメント、補強繊維、パ
〜デ等を混合させるのが適切である。複鎖構造型の粘度
鉱物粉を混合水に分散させる前にセメント、補強繊維、
バルブ等を混合し、しかる後、複鎖構造型の粘度鉱物粉
を混合した場合、分散が充分なものでなかった。This is because mixed water in factory production is recycled water and therefore contains these ions. For this reason, kaolin, etc., which are not clay minerals with a multi-chain structure, do not have much of a dispersion effect. (The clay mineral powders with a multi-chain structure used in the present invention are ataba μ guide, sepiolite, varigoskite, etc.) , the viscosity of the slurry for high-concentration papermaking is increased to make the concentration distribution uniform. The blending and dispersion amount of the double-chain structure type viscous mineral powder in mixed water is 1 to 5.
% (wt%), it is appropriate to first disperse this double-chain structure type viscous mineral powder in mixed water and then mix with cement, reinforcing fibers, padde, etc. Cement, reinforcing fibers,
When a valve etc. were mixed and then a double-chain structure type clay mineral powder was mixed, the dispersion was not sufficient.
次に実施例を従来例、比較例と共に示す。Next, examples will be shown together with conventional examples and comparative examples.
偏肉の測定は第１図に示すように、高濃度抄造用スラリ
ーを抄造シリンダーで抄造し、この抄造した単層マプト
を移送フェルト上に移送し、移送フェルト上から単層マ
プトをメーキングロー〜で多層化し、これを切断し、シ
ートｌ状部にしたものを、Ａｌ ｍ Ａ１ ＊ ＡＳの
三点測定で厚みを測定し、最大値と最小値の差をとって
偏肉の値としたものである。As shown in Figure 1, the measurement of uneven thickness is carried out by forming a high-concentration slurry for paper-making using a paper-making cylinder, transferring the formed single-layer Maputo onto a transfer felt, and transferring the single-layer Maputo from the transfer felt to a making row. The thickness of the multi-layered, cut, and L-shaped sheet was measured using three-point measurement using Al m A1 * AS, and the difference between the maximum and minimum values was taken as the value of uneven thickness. It is.
プライ数というのは重合数のことであり、単層マットを
メーキングローμで多層化した層の数である。The number of plies refers to the number of polymerizations, and is the number of layers obtained by forming a single layer mat into multiple layers using the making row μ.
実施例１、従来例、比較例口よシ明らかなように、実施
例１に複鎖構造型の粘度鉱物粉としてセビ第２イト１．
２重量％用いることにより、偏肉値は０．２９ｍで従来
例、比較ｆ１１ Ｋ比べて複鎖混合型の粘土鉱物粉配合
の効果は明らかである。Example 1, Conventional Example, and Comparative Example As is clear from the above, in Example 1, Sebi No. 2ite 1.
By using 2% by weight, the thickness deviation value was 0.29 m, and compared with the conventional example and the comparative f11K, the effect of blending the double-chain mixed type clay mineral powder is clear.
実施倒置、実施倒置についても比較例璽、比較倒置に比
べてその効果は明白である。The effect of practical inversion and practical inversion is also clear compared to the comparative example and comparative inversion.
（発明の効果］
上記のように本発明のセメント繊維板の製造方法は、ス
ラリーを調整するための混合水であって、力〃シクムイ
オン、アμカリイオン、硫酸イオン等を含む混合水に複
鎖構造型の粘度鉱物粉を配合分散させると共にセメント
、有機繊維や無機繊維等でなる補強繊維、バルブ等を混
合し固形分ｍ１５％以上の高濃度抄造用スラリーを調整
し、しかる後、該高濃度抄造用スラリーを抄造すること
を特徴とするために、偏肉の少い、品質のバラツキの少
い繊維セメント板を効率よく製造できるものである。(Effects of the Invention) As described above, the method for producing a cement fiberboard of the present invention is characterized in that the mixed water for preparing the slurry is mixed water containing ion, alkali ion, sulfate ion, etc. A high-concentration papermaking slurry with a solid content of 15% or more is prepared by blending and dispersing structural-type viscosity mineral powder and mixing with cement, reinforcing fibers made of organic fibers, inorganic fibers, etc., valves, etc. Since the method is characterized in that papermaking is performed using a slurry for papermaking, it is possible to efficiently produce fiber cement boards with less uneven thickness and less variation in quality.
図はシートの厚みを測定し偏肉値を出す説明図である。 １・・・シート。 The figure is an explanatory diagram to measure the thickness of the sheet and calculate the thickness deviation value. 1... Sheet.
Claims (1)
ウムイオン、アルカリイオン、硫酸イオン等を含む混合
水に複鎖構造型の粘土鉱物粉を配合分散させると共にセ
メント、有機繊維や無機繊維等でなる補強繊維パルプ等
を混合し固形分濃度５％以上の高濃度抄造用スラリーを
調整し、しかる後、該高濃度抄造用スラリーを抄造する
事を特徴とする繊維セメント板の製造方法。1) Mixed water for preparing slurry, in which clay mineral powder with a double-chain structure is blended and dispersed in mixed water containing calcium ions, alkali ions, sulfate ions, etc., and cement, organic fibers, inorganic fibers, etc. A method for manufacturing a fiber cement board, which comprises mixing reinforcing fiber pulp and the like to prepare a high-concentration paper-making slurry with a solid content concentration of 5% or more, and then forming the high-concentration paper-making slurry.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30678786A JPS63159242A (en) | 1986-12-23 | 1986-12-23 | Manufacture of fiber cement board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30678786A JPS63159242A (en) | 1986-12-23 | 1986-12-23 | Manufacture of fiber cement board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63159242A true JPS63159242A (en) | 1988-07-02 |
Family
ID=17961247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30678786A Pending JPS63159242A (en) | 1986-12-23 | 1986-12-23 | Manufacture of fiber cement board |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63159242A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6424054A (en) * | 1987-07-16 | 1989-01-26 | Kubota Ltd | Production of fiber reinforced inorganic product |
| JPH0269205A (en) * | 1988-09-02 | 1990-03-08 | Kubota Ltd | Manufacture of fiber reinforced cement board |
| JPH05270879A (en) * | 1992-03-26 | 1993-10-19 | Matsushita Electric Works Ltd | Fiber cement slurry composition |
| US5679433A (en) * | 1991-10-31 | 1997-10-21 | Kabushiki Kaish Tokiwa Denki | Noncombustible sheet, noncombustible laminated sheet, noncombustible honey comb structural material, noncombustible board, noncombustible molded product, and manufacturing method thereof |
| JP2003081671A (en) * | 2001-09-05 | 2003-03-19 | A & A Material Corp | Calcium silicate hydrate slurry |
| JP2003095727A (en) * | 2001-09-21 | 2003-04-03 | A & A Material Corp | Inorganic stress-proof facial material, and production method therefor |
-
1986
- 1986-12-23 JP JP30678786A patent/JPS63159242A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6424054A (en) * | 1987-07-16 | 1989-01-26 | Kubota Ltd | Production of fiber reinforced inorganic product |
| JPH0269205A (en) * | 1988-09-02 | 1990-03-08 | Kubota Ltd | Manufacture of fiber reinforced cement board |
| US5679433A (en) * | 1991-10-31 | 1997-10-21 | Kabushiki Kaish Tokiwa Denki | Noncombustible sheet, noncombustible laminated sheet, noncombustible honey comb structural material, noncombustible board, noncombustible molded product, and manufacturing method thereof |
| JPH05270879A (en) * | 1992-03-26 | 1993-10-19 | Matsushita Electric Works Ltd | Fiber cement slurry composition |
| JP2003081671A (en) * | 2001-09-05 | 2003-03-19 | A & A Material Corp | Calcium silicate hydrate slurry |
| JP2003095727A (en) * | 2001-09-21 | 2003-04-03 | A & A Material Corp | Inorganic stress-proof facial material, and production method therefor |
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