JPH0338966B2 - - Google Patents
Info
- Publication number
- JPH0338966B2 JPH0338966B2 JP58039449A JP3944983A JPH0338966B2 JP H0338966 B2 JPH0338966 B2 JP H0338966B2 JP 58039449 A JP58039449 A JP 58039449A JP 3944983 A JP3944983 A JP 3944983A JP H0338966 B2 JPH0338966 B2 JP H0338966B2
- Authority
- JP
- Japan
- Prior art keywords
- weight
- fibrous
- cement
- press
- slurry
- 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
- 239000002002 slurry Substances 0.000 claims description 23
- 238000000034 method Methods 0.000 claims description 22
- 239000004568 cement Substances 0.000 claims description 20
- 239000011087 paperboard Substances 0.000 claims description 16
- 239000000123 paper Substances 0.000 claims description 15
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 238000000465 moulding Methods 0.000 claims description 7
- 239000007787 solid Substances 0.000 claims description 7
- 239000000126 substance Substances 0.000 claims description 7
- 239000002657 fibrous material Substances 0.000 claims 1
- 239000010425 asbestos Substances 0.000 description 6
- 229910052895 riebeckite Inorganic materials 0.000 description 6
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 238000007796 conventional method Methods 0.000 description 4
- 239000000835 fiber Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 2
- 239000010893 paper waste Substances 0.000 description 2
- -1 pulp Substances 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- VCUFZILGIRCDQQ-KRWDZBQOSA-N N-[[(5S)-2-oxo-3-(2-oxo-3H-1,3-benzoxazol-6-yl)-1,3-oxazolidin-5-yl]methyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical group O=C1O[C@H](CN1C1=CC2=C(NC(O2)=O)C=C1)CNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F VCUFZILGIRCDQQ-KRWDZBQOSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 229920002978 Vinylon Polymers 0.000 description 1
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 description 1
- 239000002956 ash Substances 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 235000011116 calcium hydroxide Nutrition 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- 235000012255 calcium oxide Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 229910001562 pearlite Inorganic materials 0.000 description 1
- 239000010451 perlite Substances 0.000 description 1
- 235000019362 perlite Nutrition 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Landscapes
- Producing Shaped Articles From Materials (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
- Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Description
【発明の詳細な説明】
本発明は、プレス造形加工繊維質抄造板の製造
方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for producing a press-shaped fibrous paperboard.
従来より、パルスセメント板等を繊維質抄造板
にプレス造形加工を施すことが行われているが、
この種のプレス造形加工は、抄造成形後の生原板
の硬化速度が速いため、その抄造後、遅くとも48
時間以内に行う必要があり、時間的制約を受けざ
るを得なかつた。 Traditionally, pulse cement boards and other materials have been pressed into fibrous paperboards, but
In this type of press forming process, the hardening speed of the raw original plate after paper forming is fast, so after the paper forming process, at least 48
It had to be done within a certain amount of time, so we had no choice but to be subject to time constraints.
即ち、例えば、通常の石綿抄造板は、セメント
を主成分とし、その配合は、セメント50〜85重量
％、石綿５〜35重量％、パルプ０〜15重量％とさ
れる場合が多く、その養生期間は、２〜４週間と
短い。そのため、この養生期間中にプレス造形加
工する場合、硬化速度が速いため、遅くとも、48
時間以内にプレス造形加工せねばならないことが
一般に知られている。 For example, ordinary asbestos paperboards have cement as the main component, and the composition is often 50-85% by weight of cement, 5-35% by weight of asbestos, and 0-15% by weight of pulp. The period is short, 2 to 4 weeks. Therefore, if press modeling is performed during this curing period, the hardening speed is fast, so at the latest the
It is generally known that press molding must be carried out within a certain amount of time.
本発明者は、上述の繊維質抄造板へのプレス造
形加工を時間的制約を受けることなく行い得る方
法を提供することを目的として種々検討した結
果、主として水性スラリー中の固形分の組成を考
慮することにより実質上上記目的を達成し得るこ
とを知見した。 As a result of various studies aimed at providing a method for press forming the above-mentioned fibrous paperboard without being subject to time constraints, the present inventor mainly considered the solid content composition in the aqueous slurry. It has been found that the above object can be substantially achieved by doing so.
本発明のプレス造形加工繊維質抄造板の製造方
法は、上記知見に基づきなされたもので、水性ス
ラリーを用いて繊維質抄造板を製造するに際し、
上記水性スラリーを、その固形分中セメントを１
〜20重量％、セメントを除く水硬性物質を20〜50
重量％繊維質を１〜20重量％に調整し且つスラリ
ー濃度を0.5〜40重量％に調整して、該水性スラ
リーから含水率（乾燥基準）30〜100％の繊維質
抄造生原板を成形し、成形直後乃至約170時間後
の間に上記繊維質抄造生原板の表面にプレス造形
加工を施すことを特徴とするものである。 The method for manufacturing a press-shaped fibrous paper board of the present invention was made based on the above knowledge, and when manufacturing a fibrous paper board using an aqueous slurry,
The above aqueous slurry contains 1 cement in its solid content.
~20% by weight, 20-50% hydraulic substances excluding cement
Adjust the weight% fibrous content to 1 to 20% by weight and adjust the slurry concentration to 0.5 to 40% by weight, and form a fibrous sheet material having a moisture content (dry basis) of 30 to 100% from the aqueous slurry. The method is characterized in that the surface of the above-mentioned fibrous paper raw material sheet is subjected to a press forming process from immediately after molding to approximately 170 hours after molding.
以下に上記特徴を以てなる本発明のプレス造形
加工繊維質抄造板の製造方法を、その好ましい製
造態様に基づき詳述する。 The method for manufacturing the press-shaped fibrous paperboard of the present invention having the above-mentioned characteristics will be described in detail below based on its preferred manufacturing mode.
本発明の実施に際しては、先ず、固形分の組成
をセメント１〜20％（重量％、以下同様）、セメ
ント以外の水硬性物質20〜50％、繊維質10〜20％
及び無機物質10〜20％に調製した、スラリー濃度
0.5〜40％の水性スラリーを作製する。この水性
スラリーの調製に際して重要なことは、セメント
の配合率を固形分中１〜20％とすることであり、
セメントの配合率が１％未満であると、成形体の
硬化速度が遅すぎ且つ成形体の硬化度も所望のも
のにし難く、作業効率を悪化させ、又、配合率が
20％を超えると、成形体の硬化速度を充分に遅延
させることができないため、本発明の目的を達成
できなくなる。 When carrying out the present invention, first, the solid content is determined to be 1 to 20% cement (by weight, the same applies hereinafter), 20 to 50% hydraulic substances other than cement, and 10 to 20% fibers.
and slurry concentration adjusted to 10-20% inorganic substances
Make a 0.5-40% aqueous slurry. What is important when preparing this aqueous slurry is that the cement content should be 1 to 20% of the solid content.
If the blending ratio of cement is less than 1%, the curing speed of the molded body will be too slow and it will be difficult to achieve the desired degree of hardening of the molded body, which will deteriorate work efficiency and cause the blending ratio to be too low.
If it exceeds 20%, it will not be possible to sufficiently retard the curing speed of the molded article, making it impossible to achieve the object of the present invention.
本発明で用いられるセメント以外の水硬性物質
は、セメントを多量に用いる従来品におけるセメ
ントと置換使用されてセメントを機能を代替する
もので、水砕スラグ、生石灰、消石灰、石膏、及
びフライアツシユやペーパースラツヂ焼却灰を硫
酸と混合撹拌して硫酸処理したものなどをあげる
ことができる。 The hydraulic substances other than cement used in the present invention are used to replace cement in conventional products that use a large amount of cement, and function as substitutes for cement, such as granulated slag, quicklime, slaked lime, gypsum, flyash, and paper sludge. Examples include those treated with sulfuric acid by mixing and stirring incinerated ash with sulfuric acid.
また、本発明で用いられる繊維質としては、石
綿、パルプ、ガラス繊維、ロツクウール繊維、故
紙、ナイロン、ビニロンなどがあげられるが、石
綿及び故紙が好適する。また、無機物質として
は、パーライト、蛇紋岩などがあげられる。 The fibers used in the present invention include asbestos, pulp, glass fiber, rock wool fiber, waste paper, nylon, vinylon, etc., and asbestos and waste paper are preferred. Further, examples of inorganic substances include pearlite and serpentine.
水性スラリーのスラリー濃度（固形分濃度）を
0.5〜40％とするのは、該スラリーの抄造を可能
にするためであり、スラリー濃度は、この範囲内
で下記の含水率の生原板が得られるように、目的
に応じて選択される。 Slurry concentration (solid content concentration) of aqueous slurry
The reason for setting the slurry to be 0.5 to 40% is to enable papermaking of the slurry, and the slurry concentration is selected depending on the purpose so that a raw plate having the moisture content shown below can be obtained within this range.
次いで、上記の如く調製して水性スラリーを常
法通り、湿式抄造機にて抄造し、含水率（乾燥基
準、以下同様）30〜100％の繊維質抄造生原板を
得る。生原板（成形体）は、その含水率が上記範
囲を逸脱すると、充分に硬化し難くなる。 Next, the aqueous slurry prepared as described above is made into paper using a wet paper making machine in a conventional manner to obtain a fibrous raw paper sheet having a moisture content (on a dry basis, hereinafter the same) of 30 to 100%. If the moisture content of the green original plate (molded body) deviates from the above range, it will be difficult to cure it sufficiently.
上記湿式抄造機としては、丸網式抄造機及び長
網式抄造機等をあげることがきる。 Examples of the wet paper making machine include a circular wire paper making machine and a fourdrinier paper making machine.
而して、上記生原板（成形体）を養生硬化する
過程で該生原板にプレス造形加工を施す。 Then, in the process of curing and hardening the raw original plate (molded body), the raw original plate is subjected to a press forming process.
上記プレス造形加工は、上記生原板を成形後約
170時間以内に施せば良く、上記時間内であれば、
何等制限されずに、美麗な造形を容易に施すこと
ができる。また、上記プレス造形加工のプレス圧
力は、生原板の組成や厚さによつても多少異なる
が、10〜100Kg／cm2前後、好ましくは10〜40Kg／
cm2で行えば良く、上記の如くしてプレス造形加工
を終了した後、該生原板をさらに、常法通り養生
硬化、乾燥させ、本発明に係るプレス造形加工繊
維質抄造板が得られる。 The above press forming process is performed after forming the above raw original plate.
It only needs to be applied within 170 hours, and within the above time,
Beautiful shapes can be easily created without any restrictions. In addition, the press pressure for the above-mentioned press forming process varies somewhat depending on the composition and thickness of the raw original plate, but is around 10 to 100 Kg/ cm2 , preferably 10 to 40 Kg/cm2.
cm 2 . After completing the press-forming process as described above, the green original plate is further cured and dried in a conventional manner to obtain the press-formed fibrous paperboard according to the present invention.
叙上の如く、本発明のプレス造形加工繊維質抄
造板の製造方法は、スラリーの固形分中のセメン
トの配合率を従来のものに比し低くした分をセメ
ント以外の水硬性物質で代替することによつて、
硬化速度を遅延させた、セメント配合率の低い繊
維質抄造生原板（成形体）を形成し、プレス造形
加工を成形後長時間経た後でも容易に施し得るよ
うにしたもので、従来の方法では成形後遅くとも
48時間以内にプレス造形加工を施さなければなら
なかつたが、本発明の方法では、プレス造形加工
を施せる時間が従来の３倍以上も延長され、成形
後の時間的制約を大幅に排除することができ、し
かもプレス造形加工を従来法に比して何等遜色無
く美麗に施すことができる上、本発明の方法によ
つて製造されたプレス造形加工繊維質抄造板は、
耐火性、耐水性等の各種の物性においてもセメン
トの配合率の高い従来の繊維質抄造板と殆ど同様
の性能を有し、耐火性建築内外装材として好適な
ものである等、種々の効果が奏される。 As described above, the method for manufacturing a press-shaped fibrous paperboard of the present invention replaces the cement content in the solid content of the slurry, which is lower than that of the conventional method, with a hydraulic substance other than cement. By the way,
This method forms a fibrous paper blank (molded body) with a slow hardening rate and a low cement content, making it possible to easily perform press forming even long after forming, which is difficult to achieve with conventional methods. at the latest after molding
Previously, the press forming process had to be performed within 48 hours, but with the method of the present invention, the time for press forming process is extended by more than three times compared to the conventional method, significantly eliminating time constraints after forming. In addition, the press forming process can be performed beautifully without any inferiority compared to the conventional method, and the press forming process fibrous paper board manufactured by the method of the present invention has the following properties:
In terms of physical properties such as fire resistance and water resistance, it has almost the same performance as conventional fibrous paperboard with a high cement content, making it suitable as a fire-resistant interior/exterior material for buildings, etc., and has various effects. is played.
以下に本発明の実施例を示す。 Examples of the present invention are shown below.
実施例 １
セメント10部（重量部、以下同様）、水砕スラ
グ30部、石綿15部及びパーライト15部を水と混練
して、スラリー濃度５重量％の水性スラリーを作
製した。次いで、上記スラリーを丸網式抄造機に
て抄造し、含水率（軽量基準）60％の成形体（石
綿抄造生原板）を得た。該成形体を成形後、直ち
に該成形体にプレス圧力35／cm2でプレス造成加工
を施し、その後４週間養生し、乾燥させて910×
1820×５mmの大きさの製品（本発明に係る繊維質
抄造板）を得た。得られた製品は美しい装飾的機
能を有するものであつた。Example 1 10 parts by weight of cement, 30 parts of granulated slag, 15 parts of asbestos, and 15 parts of perlite were kneaded with water to prepare an aqueous slurry having a slurry concentration of 5% by weight. Next, the slurry was made into paper using a circular mesh paper making machine to obtain a molded article (raw asbestos paper) having a water content (light weight basis) of 60%. Immediately after molding the molded body, the molded body was subjected to a press forming process at a press pressure of 35/cm 2 , then cured for 4 weeks, dried, and 910×
A product (fibrous paperboard according to the present invention) with a size of 1820 x 5 mm was obtained. The obtained product had beautiful decorative functions.
実施例 ２
実施例１と全く同様にして成形体を得た。上記
成形体を成形後６日間養生した後、実施例１と全
く同様にして該成形体にプレス造成加工を施し、
その後４週間養生し、乾燥させて910×1820×５
mmの大きさの製品（本発明に係る繊維質抄造板）
を得た。得られた製品は実施例１で得られた製品
と同一の美しい装飾的機能を有するものであつ
た。Example 2 A molded article was obtained in exactly the same manner as in Example 1. After curing the above molded body for 6 days after molding, the molded body was subjected to press forming processing in exactly the same manner as in Example 1,
After that, cure for 4 weeks and dry it to 910 x 1820 x 5
mm size product (fibrous paper board according to the present invention)
I got it. The product obtained had the same beautiful decorative features as the product obtained in Example 1.
Claims (1)
るに際し、上記水性スラリーを、その固形分中セ
メントを１〜20重量％、セメントを除く水硬性物
質を20〜50重量％、繊維質を１〜20重量％に調整
し且つスラリー濃度を0.5〜40重量％に調整して、
該水性スラリーから含水率（乾燥基準）30〜100
％の繊維質抄造生原板を成形し、成形直後乃至約
170時間後の間に上記繊維質抄造生原板の表面に
プレス造形加工を施すことを特徴とするプレス造
形加工繊維質抄造板の製造方法。1. When manufacturing a fibrous paperboard using an aqueous slurry, the solid content of the aqueous slurry is 1 to 20% by weight of cement, 20 to 50% by weight of hydraulic substances other than cement, and 1 to 1% of fibrous material by weight. Adjust the slurry concentration to 20% by weight and adjust the slurry concentration to 0.5 to 40% by weight,
Moisture content (dry basis) from the aqueous slurry is 30 to 100
% of the raw fibrous paper sheet is molded, and from immediately after molding to approx.
A method for producing a press-formed fibrous paperboard, the method comprising performing press-forming on the surface of the fibrous paperboard after 170 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3944983A JPS59165615A (en) | 1983-03-10 | 1983-03-10 | Manufacture of press molding machining fibrous making board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3944983A JPS59165615A (en) | 1983-03-10 | 1983-03-10 | Manufacture of press molding machining fibrous making board |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59165615A JPS59165615A (en) | 1984-09-18 |
| JPH0338966B2 true JPH0338966B2 (en) | 1991-06-12 |
Family
ID=12553336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3944983A Granted JPS59165615A (en) | 1983-03-10 | 1983-03-10 | Manufacture of press molding machining fibrous making board |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59165615A (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS627507A (en) * | 1985-07-04 | 1987-01-14 | 株式会社アスク | Manufacture of decorative inorganic board |
| US5171366A (en) * | 1989-10-12 | 1992-12-15 | Georgia-Pacific Corporation | Gypsum building product |
| US5632848A (en) * | 1989-10-12 | 1997-05-27 | Georgia-Pacific Corporation | Continuous processing equipment for making fiberboard |
| US5155959A (en) * | 1989-10-12 | 1992-10-20 | Georgia-Pacific Corporation | Firedoor constructions including gypsum building product |
| US5347780A (en) * | 1989-10-12 | 1994-09-20 | Georgia-Pacific Corporation | Gypsum fiberboard door frame |
| US5305577A (en) * | 1989-10-12 | 1994-04-26 | Georgia-Pacific Corporation | Fire-resistant structure containing gypsum fiberboard |
| US5945182A (en) * | 1995-02-14 | 1999-08-31 | G-P Gypsum Corporation | Fire-resistant members containing gypsum fiberboard |
| GB2362643B (en) * | 2000-05-26 | 2004-02-11 | William Ajua Tasong | Production of 'green' cement |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49111922A (en) * | 1973-02-26 | 1974-10-24 | ||
| JPS5328620A (en) * | 1976-08-27 | 1978-03-17 | Kubota Ltd | Glasssfibreereinforced cement board having raised pattern thereon and process for production thereof |
| JPS5432A (en) * | 1977-06-02 | 1979-01-05 | Kubota Ltd | Method of making fiberrreinforced calcium silicate plate |
-
1983
- 1983-03-10 JP JP3944983A patent/JPS59165615A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49111922A (en) * | 1973-02-26 | 1974-10-24 | ||
| JPS5328620A (en) * | 1976-08-27 | 1978-03-17 | Kubota Ltd | Glasssfibreereinforced cement board having raised pattern thereon and process for production thereof |
| JPS5432A (en) * | 1977-06-02 | 1979-01-05 | Kubota Ltd | Method of making fiberrreinforced calcium silicate plate |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59165615A (en) | 1984-09-18 |
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