JPH03290349A - Molded article of calcium silicate and production thereof - Google Patents
Molded article of calcium silicate and production thereofInfo
- Publication number
- JPH03290349A JPH03290349A JP8814190A JP8814190A JPH03290349A JP H03290349 A JPH03290349 A JP H03290349A JP 8814190 A JP8814190 A JP 8814190A JP 8814190 A JP8814190 A JP 8814190A JP H03290349 A JPH03290349 A JP H03290349A
- Authority
- JP
- Japan
- Prior art keywords
- calcium silicate
- raw material
- pyrophyllite
- weight
- molded article
- 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.)
- Granted
Links
- 239000000378 calcium silicate Substances 0.000 title claims abstract description 34
- 229910052918 calcium silicate Inorganic materials 0.000 title claims abstract description 34
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 title claims abstract description 34
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 229910052903 pyrophyllite Inorganic materials 0.000 claims abstract description 24
- 239000002994 raw material Substances 0.000 claims abstract description 24
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 19
- 239000011707 mineral Substances 0.000 claims abstract description 19
- 239000000126 substance Substances 0.000 claims abstract description 12
- 239000000945 filler Substances 0.000 claims abstract description 7
- 239000012783 reinforcing fiber Substances 0.000 claims abstract description 4
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 4
- 239000000203 mixture Substances 0.000 abstract description 11
- 239000000463 material Substances 0.000 abstract description 5
- 238000000465 moulding Methods 0.000 abstract description 3
- 238000012545 processing Methods 0.000 abstract description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 2
- 229910052593 corundum Inorganic materials 0.000 abstract 2
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract 2
- 230000000996 additive effect Effects 0.000 abstract 1
- 235000010755 mineral Nutrition 0.000 description 13
- 238000000034 method Methods 0.000 description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 8
- 239000000835 fiber Substances 0.000 description 5
- 230000007423 decrease Effects 0.000 description 4
- 229920006395 saturated elastomer Polymers 0.000 description 4
- 239000010425 asbestos Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910052895 riebeckite Inorganic materials 0.000 description 3
- 235000012239 silicon dioxide Nutrition 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000012774 insulation material Substances 0.000 description 2
- 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 2
- 229910052622 kaolinite Inorganic materials 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000000454 talc Substances 0.000 description 2
- 229910052623 talc Inorganic materials 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 239000005909 Kieselgur Substances 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- 101100310622 Mus musculus Soga1 gene Proteins 0.000 description 1
- 229920001131 Pulp (paper) Polymers 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 1
- HPTYUNKZVDYXLP-UHFFFAOYSA-N aluminum;trihydroxy(trihydroxysilyloxy)silane;hydrate Chemical compound O.[Al].[Al].O[Si](O)(O)O[Si](O)(O)O HPTYUNKZVDYXLP-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 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
- 239000004568 cement Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 229910052621 halloysite Inorganic materials 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012784 inorganic fiber Substances 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000012856 weighed raw material Substances 0.000 description 1
- 239000010456 wollastonite Substances 0.000 description 1
- 229910052882 wollastonite Inorganic materials 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/18—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing mixtures of the silica-lime type
- C04B28/186—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing mixtures of the silica-lime type containing formed Ca-silicates before the final hardening step
- C04B28/188—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing mixtures of the silica-lime type containing formed Ca-silicates before the final hardening step the Ca-silicates being present in the starting mixture
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は珪酸カルシウム成形体及びその製造方法に関す
る。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a calcium silicate molded body and a method for producing the same.
［従来の技術・課題］
珪酸カルシウム成形体は建築用内外装材、船舶用隔壁材
、工業用断熱材等の広い分野で利用されている。[Prior Art/Problems] Calcium silicate molded bodies are used in a wide range of fields such as interior and exterior materials for buildings, bulkhead materials for ships, and industrial insulation materials.
これらの珪酸カルシウム成形体はその用途により諸々の
形状に切断加工されている。この際に、従来の珪酸カル
シウム成形体は切断、加工治具の消耗が激しく、工具の
寿命が短い。また、切断面、木口に欠けが生じ易いなど
の問題かあった。特に、嵩比重が１．０を超える成形体
や嵩比重が１．０以下であっても厚さが１０ＩＩＩＩを
超える成形体あるいは加熱処理を施した成形体は著しく
切削加工性が悪かった。These calcium silicate molded bodies are cut into various shapes depending on their use. At this time, in the conventional calcium silicate molded body, cutting and processing jigs are subject to severe wear and tool life is short. In addition, there were problems such as easy chipping of the cut surface and end of the wood. In particular, molded bodies with a bulk specific gravity of more than 1.0, molded bodies with a bulk density of 1.0 or less but a thickness of more than 10III, or molded bodies subjected to heat treatment had extremely poor machinability.
このような珪酸カルシウム成形体の加工性を改善するた
めの手段として特開昭５９−２２８９７０号公報や特開
昭６１−８８０３６号公報においては石綿を含まない珪
酸カルシウム成形体中ヘワラストナイト及びタルクを添
加する方法が提案されている。しかしながら、低品位の
タルク中には、石綿繊維が混在することがあり、無石綿
成形体を目的とした場合、不向きな方法であった。As a means for improving the workability of such calcium silicate molded bodies, JP-A-59-228970 and JP-A-61-88036 disclose hewalastonite and talc in calcium silicate molded bodies that do not contain asbestos. A method of adding . However, asbestos fibers may be mixed in low-grade talc, making this method unsuitable for producing asbestos-free molded products.
「課題を解決するための手段］
本発明者らは上述の課題を解決すべく鋭意研究の結果、
珪酸カルシウム成形体にパイロフィライト質鉱物を添加
することにより上記問題点を解決できることを見出した
。"Means for Solving the Problems" As a result of intensive research to solve the above problems, the present inventors found that
It has been found that the above problems can be solved by adding a pyrophyllite mineral to a calcium silicate molded body.
すなわち、本発明は珪酸カルシウム成形体において、Ａ
ｌ２Ｏ，の化学分析値が１２重量％以上のパイロフィラ
イト質鉱物１０〜５０重量％含有することを特徴とする
珪酸カルシウム成形体に係る。That is, the present invention provides a calcium silicate molded article in which A
The present invention relates to a calcium silicate molded body characterized by containing 10 to 50% by weight of a pyrophyllite mineral having a chemical analysis value of 12% by weight or more.
更に、本発明は珪酸カルシウム成形体の製造方法におい
て、原料として石灰質原料と珪酸質原料からなる珪酸カ
ルシウム原料２５〜９０重量％、Ａｌｚｏｓの化学分析
値が１２重量％以上のパイロフィライト質鉱物１０〜５
０重量％、充填剤０〜３０重量％及び補強用繊維０〜１
５重量％を使用することを特徴とする珪酸カルシウム成
形体の製造方法に係る。Furthermore, the present invention provides a method for producing a calcium silicate molded body, in which a calcium silicate raw material consisting of a calcareous raw material and a silicate raw material is used in an amount of 25 to 90% by weight, and a pyrophyllite mineral 10 having an Alzos chemical analysis value of 12% by weight or more is used. ~5
0% by weight, filler 0-30% by weight and reinforcing fiber 0-1
It relates to a method for producing a calcium silicate molded body, characterized in that 5% by weight is used.
［作 用］
本発明の珪酸カルシウム成形体はＡ ｂ Ｏｓの化学分
析値が１２重量％以上のパイロフィライト質鉱物を１０
〜５０重量％含有することに特徴がある。パイロフィラ
イト質鉱物としてＡ １２０ ｓの化学分析値が１２重
量％以上のものを使用するのは、該分析値比が１２未満
であると、パイロフィライトの理論組成式Ａ １２０
、・４ Ｓ ！０２・Ｈｔｏからのずれが大きくなり過
ぎ、パイロフィライト質鉱物中のパイロフィライト含量
が少なくなり、添加効果が低下するためである。なお、
パイロフィライト質鉱物の組成は石英、カオリナイト等
が鉱床中に混在するために上記パイロフィライト理論組
成式から大きくずれている場合が多く、上記化学分析値
により本発明に使用可能なパイロフィライト質鉱物を規
定した。′ｉな、パイロフィライト質鉱物の添加配合量
が１０重量％未満の場合には切削加工性の改善が得られ
ないために好ましくなく、また、５０重量％を超えると
著しい強度低下のために好ましくない。[Function] The calcium silicate molded body of the present invention contains pyrophyllite minerals having an A b Os chemical analysis value of 12% by weight or more.
It is characterized by containing ~50% by weight. The reason for using a pyrophyllite mineral with a chemical analysis value of A 120 s of 12% by weight or more is that if the analysis value ratio is less than 12, the theoretical composition formula of pyrophyllite A 120
,・4S! This is because the deviation from 02.Hto becomes too large, the pyrophyllite content in the pyrophyllite mineral decreases, and the addition effect decreases. In addition,
The composition of pyrophyllite minerals often deviates greatly from the above theoretical composition formula of pyrophyllite due to the presence of quartz, kaolinite, etc. in the deposit, and the above chemical analysis values indicate that pyrophyllite can be used in the present invention. Specified light minerals. If the amount of added pyrophyllite mineral is less than 10% by weight, it is undesirable because no improvement in machinability can be obtained, and if it exceeds 50% by weight, a significant decrease in strength may occur. Undesirable.
本発明の珪酸カルシウム成形体は上記パイロフィライト
質鉱物を１０〜５０重量％添加配合してなるものである
０本発明の珪酸カルシウム成形体は下記の方法により製
造することができる。The calcium silicate molded article of the present invention contains the above-mentioned pyrophyllite mineral in an amount of 10 to 50% by weight.The calcium silicate molded article of the present invention can be produced by the following method.
まず、石灰質原料と珪酸質原料からなる珪酸カルシウム
原料２５〜９０重量％、Ａ１２ｏ、の化学分析値が１２
重量％以上のパイロフィライト質鉱物１０〜５０重量％
、充填剤０〜３０重量％及び補強用繊維０〜１５重量％
よりなる混合物を得る。First, the chemical analysis value of 25 to 90% by weight of calcium silicate raw material, A12o, consisting of calcareous raw material and silicate raw material is 12
10-50% by weight of pyrophyllite minerals
, filler 0-30% by weight and reinforcing fiber 0-15% by weight
A mixture consisting of:
得られた混合物には従来既知の成形方法及び養生反応を
適用することができる１例えば、該混合物に所定量の水
を添加してスラリーを得、次に、プレス脱水法、抄造法
等の方法により成形し、次に、飽和水蒸気圧下オートク
レーブにより養生を行う方法や、前記混合物を慣用の方
法により成形した後、飽和水蒸気圧下オートクレーブに
より養生を行う方法等を使用することができる。Conventionally known molding methods and curing reactions can be applied to the obtained mixture.1 For example, a predetermined amount of water is added to the mixture to obtain a slurry, and then a method such as a press dehydration method or a papermaking method is applied. A method in which the mixture is molded by a conventional method and then cured in an autoclave under saturated steam pressure, or a method in which the mixture is molded by a conventional method and then cured in an autoclave under saturated steam pressure can be used.
本発明の珪酸カルシウム成形体を製造するに当たり使用
可能な石灰質原料は特に限定されるものではなく、従来
より使用されている原料が全て使用できる１例えばセメ
ント、消石灰、生石灰、アセチレン滓等を使用すること
ができる。The calcareous raw materials that can be used in manufacturing the calcium silicate molded body of the present invention are not particularly limited, and all conventionally used raw materials can be used.For example, cement, slaked lime, quicklime, acetylene slag, etc. can be used. be able to.
次に、珪酸質原料もまた従来より使用されている原料が
全て使用できる０例えば珪石、ハロイサイト、カオリナ
イト等の結晶質珪酸、珪藻土、フライアッシュ、シリカ
フラワー、ホワイトカーボン等の非晶質シリカ等を使用
することができる。Next, all the conventionally used silicic raw materials can be used, such as crystalline silicic acid such as silica stone, halloysite, and kaolinite, and amorphous silica such as diatomaceous earth, fly ash, silica flour, and white carbon. can be used.
これら石灰質原料と珪酸質原料からなる珪酸カルシウム
原料の添加配合量は２５〜９０重量％の範囲内である。The addition amount of the calcium silicate raw material consisting of these calcareous raw materials and silicate raw materials is within the range of 25 to 90% by weight.
珪酸カルシウム原料の添加配合量が２５重量％未満であ
ると充分な強度が得られないために好ましくなく、才な
、９０重量％を超えると充分な切削加工性が得られない
ために好ましくない。If the amount of the calcium silicate raw material added is less than 25% by weight, sufficient strength cannot be obtained, which is undesirable, and if it exceeds 90% by weight, sufficient machinability cannot be obtained, which is undesirable.
また、本発明の珪酸カルシウム成形体には必要に応じて
適当量の充填材を添加することができる。Moreover, an appropriate amount of filler can be added to the calcium silicate molded article of the present invention, if necessary.
該充填材の添加配合量は３０重量％以下が好ましい。添
加配合量が３０重量％を超えると強度低下を起こす原因
となるために好ましくない、なお、使用可能な充填材類
としては例えばワラストナイト、マイカ、炭酸カルシウ
ム等を挙げることができる。The amount of the filler added is preferably 30% by weight or less. If the amount added exceeds 30% by weight, it is not preferable because it causes a decrease in strength. Examples of fillers that can be used include wollastonite, mica, and calcium carbonate.
更に、本発明の珪酸カルシウム成形体には適当量の繊維
類を添加配合することができる。繊維類は従来から珪酸
カルシウム成形体に使用されていたものが全て使用でき
る０例えば木質パルプ、レーヨン等の有機質繊維、石綿
、ガラス質繊維等の無機質繊維が例示できる。添加量は
１５重量％以下、好適には２〜１５重量％の範囲内であ
る。Furthermore, an appropriate amount of fibers can be added to the calcium silicate molded article of the present invention. All fibers conventionally used in calcium silicate molded bodies can be used; examples include organic fibers such as wood pulp and rayon, and inorganic fibers such as asbestos and glass fibers. The amount added is 15% by weight or less, preferably within the range of 2 to 15% by weight.
１５重量％を超えて繊維類を添加すると、原料の混合不
良に起因する成形体の欠陥を生じ易く、また、２重量％
未満であると添加効果がなく、オートクレーブ処理前の
成形体の自己保持性の改善効果が期待できない。Adding fibers in an amount exceeding 15% by weight tends to cause defects in the molded product due to poor mixing of raw materials;
If the amount is less than that, there will be no addition effect, and no improvement in the self-retention properties of the molded article before autoclave treatment can be expected.
上述のような成分配合をもつ混合物を上述のような成形
方法によりに所定の形状に成形し、次に、オートクレー
ブ養生を行う、オートクレーブ養生は１４０〜２２０℃
の飽和水蒸気圧下で３時間以上処理する。温度が１４０
℃未満であったり、養生時間が３時間未満の短時間処理
では、未反応の石灰質が残存する場合が多く、珪酸カル
シウムの生成が不充分となるために好ましくない。また
、２２０℃を超える温度では得られる珪酸カルシウム成
形体が堅く、脆くなるために不適当である。A mixture having the above-mentioned composition is molded into a predetermined shape by the above-mentioned molding method, and then autoclave curing is performed.The autoclave curing is performed at 140 to 220°C
Treat for 3 hours or more under saturated steam pressure of . temperature is 140
C. or a short curing time of less than 3 hours is not preferable because unreacted limestone often remains and calcium silicate is insufficiently produced. Further, temperatures exceeding 220°C are unsuitable because the resulting calcium silicate molded body becomes hard and brittle.
［実 施 例］
以下に実施例を挙げて本発明の珪酸カルシウム成形体を
更に説明する。[Example] The calcium silicate molded article of the present invention will be further explained with reference to Examples below.
実施例
以下の第１表に示した配合割合にて秤量した原料を固形
分の４倍量の水で分散、混合してスラリー化した後、型
枠に流し込み、１５０ｋｇ／ｃｍ２の圧力で脱水成形を
行い、厚さ７−翔の成形体を作成した。得られた成形体
を１８０℃の飽和水蒸気圧下１０時間オートクレーブ養
生を行った。この成形体を１０５℃の乾燥機中で２４時
間乾燥した後、嵩比重、曲げ強さ並びに加工性を試験し
た。Examples Weighed raw materials in the proportions shown in Table 1 below are dispersed and mixed with water four times the amount of solid content to form a slurry, then poured into a mold and dehydrated and molded at a pressure of 150 kg/cm2. A molded article having a thickness of 7 mm was prepared. The obtained molded body was autoclaved for 10 hours under saturated steam pressure at 180°C. After drying this molded article in a dryer at 105° C. for 24 hours, bulk specific gravity, bending strength, and workability were tested.
加工性試験はＪＩＳ Ｂ−４７５１に規定されるハンド
ソー（２５０Ｘ１２Ｘ０．６４Ｘ１４Ｔ）に１．２ｋｇ
の荷重を成形体の厚さ方向にかけ、ハンドソーの中心部
７５ｍｍの範囲で往復させ、成形体が切断された深さを
測定したものである。また、前房刃物社製超硬チップソ
一二スーパハイマックスにて２４５０ｍｍの長さ及び６
１厚さを有する板状成形体を切断し、切断木口の様子を
観察した。The workability test was conducted using a hand saw (250X12X0.64X14T) specified in JIS B-4751 with a weight of 1.2kg.
A load was applied to the molded product in the thickness direction, and the hand saw was reciprocated within a range of 75 mm from the center of the hand saw, and the depth at which the molded product was cut was measured. In addition, the length of 2450 mm and 6
A plate-shaped molded product having a thickness of 1 was cut, and the state of the cut end was observed.
なお、実施例に使用したパイロフィライト質鉱物はＡｌ
２Ｏ，の化学分析値が１５．４９重量％のものである。The pyrophyllite mineral used in the examples is Al
The chemical analysis value of 2O is 15.49% by weight.
！−−上−−退
（配合二重１％）
比較例
第２表に示す配合割合にて原料を秤量し、以下、実施例
と同様に成形体を作製し、物性試験を行っ本発明の珪酸
カルシウム成形体はパイロフィライト質鉱物を含有して
いるために、加工性が良好で且つ強度も高く、建築用内
外装材、船舶用隔壁材、工業用断熱材等の広い分野に利
用することができる。! -- Upper -- Reverse (compound duplex 1%) Comparative example Raw materials were weighed at the blending ratio shown in Table 2, and molded bodies were produced in the same manner as in the examples, physical property tests were conducted, and the silicic acid of the present invention was Calcium molded bodies contain pyrophyllite minerals, so they have good workability and high strength, and can be used in a wide range of fields such as interior and exterior materials for buildings, bulkhead materials for ships, and industrial insulation materials. I can do it.
代
理
人
曽我道照１−メｊ
ミーコｉ
第２表中、＊１は裏面切口に幅３−程度の欠けが生じた
ことを示す。Agent Dosho Soga 1-mej Meekoi In Table 2, *1 indicates that a chip of approximately 3-width was formed on the back surface cut.
［発明の効果］[Effect of the invention]
Claims (1)
化学分析値が１２重量％以上のパイロフィライト質鉱物
１０〜５０重量％含有することを特徴とする珪酸カルシ
ウム成形体。 ２、珪酸カルシウム成形体の製造方法において、原料と
して石灰質原料と珪酸質原料からなる珪酸カルシウム原
料２５〜９０重量％、Ａｌ＿２Ｏ＿３の化学分析値が１
２重量％以上のパイロフィライト質鉱物１０〜５０重量
％、充填剤０〜３０重量％及び補強用繊維０〜１５重量
％を使用することを特徴とする珪酸カルシウム成形体の
製造方法。[Scope of Claims] 1. A calcium silicate molded product, which contains 10 to 50% by weight of a pyrophyllite mineral having a chemical analysis value of Al_2O_3 of 12% by weight or more. 2. In the method for producing a calcium silicate molded body, the calcium silicate raw material is 25 to 90% by weight consisting of a calcareous raw material and a silicate raw material, and the chemical analysis value of Al_2O_3 is 1.
A method for producing a calcium silicate molded article, characterized in that 10 to 50% by weight of a pyrophyllite mineral of 2% or more, 0 to 30% by weight of a filler, and 0 to 15% by weight of reinforcing fibers are used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2088141A JP2892431B2 (en) | 1990-04-04 | 1990-04-04 | Calcium silicate compact and method for producing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2088141A JP2892431B2 (en) | 1990-04-04 | 1990-04-04 | Calcium silicate compact and method for producing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03290349A true JPH03290349A (en) | 1991-12-20 |
| JP2892431B2 JP2892431B2 (en) | 1999-05-17 |
Family
ID=13934658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2088141A Expired - Fee Related JP2892431B2 (en) | 1990-04-04 | 1990-04-04 | Calcium silicate compact and method for producing the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2892431B2 (en) |
-
1990
- 1990-04-04 JP JP2088141A patent/JP2892431B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2892431B2 (en) | 1999-05-17 |
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