JPS61273A - Production of insulator - Google Patents

Production of insulator

Info

Publication number
JPS61273A
JPS61273A JP6327985A JP6327985A JPS61273A JP S61273 A JPS61273 A JP S61273A JP 6327985 A JP6327985 A JP 6327985A JP 6327985 A JP6327985 A JP 6327985A JP S61273 A JPS61273 A JP S61273A
Authority
JP
Japan
Prior art keywords
cement
insulator
water
porcelain
reducing agent
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
Application number
JP6327985A
Other languages
Japanese (ja)
Other versions
JPS622410B2 (en
Inventor
Kenkichi Hirano
健吉 平野
Toshio Kawauchi
敏夫 川内
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Denka Co Ltd
Original Assignee
Denki Kagaku Kogyo KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Denki Kagaku Kogyo KK filed Critical Denki Kagaku Kogyo KK
Priority to JP6327985A priority Critical patent/JPS61273A/en
Publication of JPS61273A publication Critical patent/JPS61273A/en
Publication of JPS622410B2 publication Critical patent/JPS622410B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Adhesives Or Adhesive Processes (AREA)
  • Inorganic Insulating Materials (AREA)
  • Insulators (AREA)
  • Insulating Bodies (AREA)

Abstract

PURPOSE:To obtain an insulator having excellent adhesion long-term durability and properties capable of withstanding wide temperature variation, by filling a gap between a porcelain and a metal fitting with cement mortar or cement paste contg. fine powder of active silica and a water-reducing agent for cement, and curing it. CONSTITUTION:0.05-5wt% fine powder of active silica such as fumed silica having a particle size of 10mu or below, 0.1-5wt% water-reducing agent such as naphthalenesulfonic acid, sand in a quantity of 0.5-2 times by weight that of cement and water are added to cement mortar or cement paste contg. 7-20wt% calcium sulfate (CaSO4) such as anhydrous gypsum, and the mixture is kneaded. A gap between a porcelain and a metal fitting is filled with said mixture. After the solidification of cement, the temp. of the mixture is elevated to 30-90 deg.C at a rate of 10-40 deg.C/hr, and it is kept at that temp. for 2-8hr to cure it.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は碍子の金具と磁器とをポルトランドセメント系
接着剤で接着する方法に関し、より詳しくは他の特性に
悪影響を与えることなく、セメントの接着力を速やかに
発現させ、作業性を改良する方法に関する。
[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a method for bonding insulator metal fittings and porcelain with a Portland cement adhesive, and more specifically, the present invention relates to a method for bonding insulator metal fittings and porcelain with a Portland cement adhesive. The present invention relates to a method for quickly developing adhesive strength and improving workability.

〔従来の技術〕[Conventional technology]

従来、碍子の磁器と金具とは、ポルトランドセメント等
の無機系接着剤又はエポキシ樹脂等の有機系の接着剤に
より接着して製造している。
Conventionally, insulator porcelain and metal fittings have been manufactured by bonding them together using an inorganic adhesive such as Portland cement or an organic adhesive such as epoxy resin.

前者は、製品とするまでには1〜3日の蒸気養生が必要
であり、かつ引抜き強度が小さく、後者は高価格、有害
性、付着した接着剤の除去に問題がある。
The former requires steam curing for 1 to 3 days before being made into a product and has a low pull-out strength, while the latter is expensive, harmful, and has problems in removing attached adhesive.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

本発明は、ポルトランドセメントなどの通常のセメント
を改良し、短時間で充分な引抜き強度を発現させ、しか
も他の特性に悪影響を与えない碍子の製造法を提供する
ことを目的とする。
An object of the present invention is to provide a method for producing an insulator that improves ordinary cement such as Portland cement, develops sufficient pull-out strength in a short period of time, and does not adversely affect other properties.

〔問題解決の手段〕[Means of problem solving]

本発明は、セメントに対して硫酸カルシウムをCaSO
4成分として7〜20重量%含有するセメントペースト
又はセメントモルタルを磁器と金具との間隙に充填し、
これを温度30〜90℃に保持する碍子の製造法におい
て、上記セメントペースト又はセメントモルタルに活性
シリカ微粉末とセメント減水剤とを添加することを特徴
とする。
The present invention uses calcium sulfate for cement as CaSO
Cement paste or cement mortar containing 7 to 20% by weight of the four components is filled into the gap between the porcelain and the metal fittings,
A method for manufacturing an insulator in which the insulator is maintained at a temperature of 30 to 90 DEG C. is characterized by adding activated silica fine powder and a cement water reducing agent to the cement paste or cement mortar.

本発明において、硫酸カルシウムとは、無水塩、2水塩
、半水塩から選ばれた1種以上のものであって、好まし
くは不溶性の無水石膏である。その理由は、通常、セメ
ントには凝結調節剤としての2水石奮が添加されている
が、これにさらに不溶性の無水石膏以外の石膏を添加し
て、本発明の硫酸カルシウム量にすると、セメントの凝
結時間が著しく長くなって、生産性が低下するからであ
る。
In the present invention, calcium sulfate is one or more selected from anhydrous salts, dihydrate salts, and hemihydrate salts, and is preferably insoluble anhydrite. The reason for this is that dihydrate is normally added to cement as a setting regulator, but when gypsum other than insoluble anhydrite is added to this to reach the amount of calcium sulfate of the present invention, cement This is because the coagulation time becomes significantly longer and productivity decreases.

半水布告は偽凝結しやすいので、使用にあたっては練り
殺しする必要かある。
Half-water edict is prone to false condensation, so it may be necessary to knead it before use.

また、本発明でいうセメントとは、普通、早強、超早強
、中庸熱、白色のポルトランドセメント又はシリカ、フ
ライアッシュ等を配合した混合セメントである。
Further, the cement as used in the present invention refers to normal, early strength, ultra early strength, moderate heat, white Portland cement, or mixed cement containing silica, fly ash, etc.

本発明においては、セメント中の硫酸カルシウム(7)
CaSO4成分の含有量を、セメントに対して7〜20
重量%にする。硫酸カルシウムのCa S O4成分が
7重量%以下であれば硫酸カルシウムを含有させること
による生産性向上等の効果が充分でなく、また20重量
%−を越える量では、長期間にわたって膨み     
    張するので耐久性が悪(なる。好ましいCa5
On成分の含有量はセメントに対して10〜15重量%
である。
In the present invention, calcium sulfate (7) in cement
The content of CaSO4 component is 7 to 20 relative to cement.
Convert to weight%. If the CaSO4 component of calcium sulfate is less than 7% by weight, the effect of improving productivity by including calcium sulfate will not be sufficient, and if it exceeds 20% by weight, it will swell over a long period of time.
The durability is poor (desirable) because of the tension.
The content of On component is 10 to 15% by weight based on cement.
It is.

本発明においては、活性シリカ微粉末及びセメント減水
剤を混合添加する。活性シリカは、例えばフェロシリコ
ン等の電炉より生じるシリカヒユームなとが好ましく、
10μ以下の微粉状の5t02である。活性シリカはセ
メント永和物と反応し、カルシウムシリケート水和物を
生成し、高い接着強度を示す活性に富んだシリカである
。その添加量はセメン]・成分と石膏との和に対して0
.05〜5重量%、好ましくは0.5〜3重量%である
In the present invention, activated silica fine powder and cement water reducing agent are mixed and added. The activated silica is preferably a silica hume produced from an electric furnace such as ferrosilicon,
It is 5t02 in the form of a fine powder of 10μ or less. Activated silica is a highly active silica that reacts with cement permanents to form calcium silicate hydrates and exhibits high adhesive strength. The amount added is 0 for the sum of cement and gypsum.
.. 05-5% by weight, preferably 0.5-3% by weight.

セメント減水剤はナフタリンスルホン酸塩系、リグニン
スルボン酸塩系など通常の減水剤が使用され、その添加
量はセメント成分と石膏との和に対し0.1〜5重量%
、好ましくは0.2〜3重量%である。
Common water reducing agents such as naphthalene sulfonate and lignin sulfonate are used as cement water reducing agents, and the amount added is 0.1 to 5% by weight based on the sum of cement components and gypsum.
, preferably 0.2 to 3% by weight.

なお、この場合、セメントに対して約0.5〜2重量倍
量の砂を加えてモルタルとすれは、碍子の耐久力が著し
く向上して好ましい。
In this case, it is preferable to add sand in an amount of about 0.5 to 2 times the weight of cement and use it as a mortar, as this will significantly improve the durability of the insulator.

本発明に使用するセメントは水で混練し、磁器に設りた
金具を取(=t lるための間隙に、金具と共に前記混
練物を充填する。
The cement used in the present invention is kneaded with water, and the kneaded mixture is filled together with the metal fittings into the gaps provided in the porcelain to remove the metal fittings.

加熱養生方法は温水、)b気、電研波なとのよ・うに、
碍子の温度を高められる方法であればよい。
The heating curing method is warm water, ) b ki, denkenha, etc.
Any method that can increase the temperature of the insulator may be used.

加熱温度は30〜90℃、好ましくは50〜70°Cで
ある。
The heating temperature is 30-90°C, preferably 50-70°C.

30℃以下では強度発現が悪<、90°C以上では強度
発現に悪影響を与える水和物が生成し、いずれの場合も
碍子の耐久性が低下する。加熱の開始時期は、接着剤が
凝結する前に行うと接着部分にひびわれを発生すること
があるので、セメントの凝結後に行うのがよい。加熱速
度は同様な理由により10〜b 保持時間は2〜8時間程度である。
At temperatures below 30°C, strength development is poor; at temperatures above 90°C, hydrates are formed that adversely affect strength development, and in either case, the durability of the insulator is reduced. It is best to start heating after the cement has set, as cracks may occur in the bonded area if it is started before the adhesive has set. For the same reason, the heating rate is about 10-b and the holding time is about 2-8 hours.

以上説明した通り、本発明はCaSO4成分として7〜
20重量%の硫酸カルシウムと活性シリカ微粉末と方メ
′ト減水剤“を含有す41%7)−S−Xi−又はセメ
ントモルタルを用いて碍子を製造するものであり、下記
の効果を有する。
As explained above, the present invention uses 7 to 7 as the CaSO4 component.
Insulators are manufactured using 41%7) -S-Xi- or cement mortar containing 20% by weight of calcium sulfate, activated silica fine powder, and cement mortar, and have the following effects: .

〔効果〕〔effect〕

(1)従来のセメント系接着剤は1〜3日の養生を必要
としたが、本発明では2〜8時間で充分であり、生産性
が向上した。
(1) Conventional cement-based adhesives require curing for 1 to 3 days, but in the present invention, curing for 2 to 8 hours is sufficient, improving productivity.

(2)接着強度がきわめζ高くなるので、その分、骨材
量を増加することができ、耐久性か一段と向上した。
(2) Since the adhesive strength is extremely high, the amount of aggregate can be increased accordingly, and the durability is further improved.

(3)従来のセメント系接着剤では生産性を高めるため
に早強材を添加すると、高温度差性状(碍子を80℃で
7日間乾燥後、10℃の水中に7日間浸漬する操作を繰
返したときの性状)が著しく低下するが、本発明により
得られた碍子は、高温度差性状試験で良好な結果が得ら
れた。
(3) With conventional cement adhesives, when early strengthening materials are added to increase productivity, high temperature difference properties (drying the insulator at 80°C for 7 days and then immersing it in water at 10°C for 7 days are repeated) However, the insulator obtained according to the present invention gave good results in the high temperature difference property test.

(4)  アルミナセメントを接着剤とするものに比べ
て、長期耐久性が大であり、かつ、接着剤の取扱いが容
易である。
(4) Compared to adhesives using alumina cement, long-term durability is greater and the adhesive is easier to handle.

〔実施例〕〔Example〕

市販の普通ポルトランドセメンl1−45Q、不溶性無
水石膏50g、5号珪砂500 g 、減水剤として「
マイティ 150J  (商品名:花玉石鹸01製)5
g(セメントと石膏との和に対し1重量%)、活性シリ
カとして「デンカフラワー」 (商品名:電気化学工業
(株製)を第1表に示す割合で混合し、水を加えてフロ
ーを230±10とし、混練モルタルを得た。
Commercially available ordinary Portland cement 1-45Q, 50 g of insoluble anhydrite, 500 g of No. 5 silica sand, water reducing agent:
Mighty 150J (Product name: Hanadama Soap 01) 5
g (1% by weight based on the sum of cement and gypsum) and "Denka Flower" (trade name: Denki Kagaku Kogyo Co., Ltd.) as activated silica were mixed in the proportions shown in Table 1, and water was added to control the flow. 230±10 to obtain a kneaded mortar.

この混練モルタルを、碍子の磁器に設けた間隙に金具と
共に充填し接着した。
This kneaded mortar was filled into the gap provided in the porcelain insulator together with the metal fittings and bonded together.

この碍子を接着後、直ちに蒸気養生室に入れ、加熱速度
20℃/時で最高温度70℃まで上げ、6時間保持した
。この碍子の引抜き強度を測定した結果を第1表に示し
た。
Immediately after bonding this insulator, it was placed in a steam curing chamber, and the temperature was raised to a maximum temperature of 70° C. at a heating rate of 20° C./hour, and maintained for 6 hours. Table 1 shows the results of measuring the pull-out strength of this insulator.

また、比較のため、上記成分中、無水石膏または減水剤
を加えない以外は上記方法と同様にして試験を行い、そ
の結果を第1表に併記した。
For comparison, a test was conducted in the same manner as above except that anhydrite or water reducing agent was not added to the above ingredients, and the results are also listed in Table 1.

第   1   表 (単位: Kg) デンカフラワーと減水剤を併用したものは短時間で高強
度を発現し、養生時間かわすか2時間で、出荷可能な引
抜き強度30’OKt4に達した。
Table 1 (Unit: Kg) The product using Denka Flower in combination with a water reducing agent developed high strength in a short period of time, and reached a shippingable pull-out strength of 30'OKt4 in just 2 hours of curing time.

別に、上記の方法で得た混練モルタルのデンカフラワー
1%、減水剤1%を添加したものを用いてJIS−R5
210に準じて4 X 4 X16cmのモルタル供試
体を成形し、直ちに蒸気養生室に入れ、加熱速度20℃
/時で最高温度70℃まで上げ、6時間保131した後
の圧縮強度を測定したところ、531Kg/ c+1!
であった。また、この供試体を水中養生したときの圧縮
強度は、24時間後、3日後、7日後、28日後、それ
ぞれ982Kg/cnl、995h / cl、103
8Kg/ cn+、1121Kg/cn+であった。
Separately, using the kneaded mortar obtained by the above method to which 1% Denka flour and 1% water reducing agent were added,
210, a mortar specimen of 4 x 4 x 16 cm was molded, immediately placed in a steam curing chamber, and heated at a heating rate of 20°C.
When the compressive strength was measured after raising the temperature to a maximum temperature of 70℃/hour and holding it for 6 hours, it was 531Kg/c+1!
Met. In addition, the compressive strengths of this specimen when cured in water were 982 Kg/cnl, 995 h/cl, and 103 after 24 hours, 3 days, 7 days, and 28 days, respectively.
They were 8Kg/cn+ and 1121Kg/cn+.

また、これらの供試体を80℃で7日間乾燥後〜10℃
の水中に7日間浸漬する操作を30サイクル繰返したと
ころ、いずれも変化がなかった。
In addition, these specimens were dried at 80℃ for 7 days and then heated to 10℃.
After repeating 30 cycles of immersion in water for 7 days, there was no change in any of the cases.

また、早強ポルトランド′セメントを用いて、上記実施
例と同様の試験を行った表ころ、普通セメントを用いた
場合に比べて約1.3倍の強度が得られた。
In addition, when the surface roller was subjected to the same test as in the above example using early-strength Portland' cement, the strength was approximately 1.3 times greater than that obtained when ordinary cement was used.

Claims (1)

【特許請求の範囲】[Claims] セメントに対して硫酸カルシウムをCaSO_4成分と
して7〜20重量%含有するセメントペースト又はセメ
ントモルタルを磁器と金具との間隙に充填し、これを温
度30〜90℃に保持する碍子の製造法において、上記
セメントペースト又はセメントモルタルに活性シリカ微
粉末とセメント減水剤とを添加することを特徴とする碍
子の製造法。
In the insulator manufacturing method, the above method is performed by filling the gap between the porcelain and the metal fittings with cement paste or cement mortar containing 7 to 20% by weight of calcium sulfate as a CaSO_4 component to the cement, and maintaining this at a temperature of 30 to 90°C. A method for producing an insulator, which comprises adding activated silica fine powder and a cement water reducing agent to cement paste or cement mortar.
JP6327985A 1985-03-29 1985-03-29 Production of insulator Granted JPS61273A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6327985A JPS61273A (en) 1985-03-29 1985-03-29 Production of insulator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6327985A JPS61273A (en) 1985-03-29 1985-03-29 Production of insulator

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP53150274A Division JPS5845762B2 (en) 1978-12-05 1978-12-05 Insulator manufacturing method

Publications (2)

Publication Number Publication Date
JPS61273A true JPS61273A (en) 1986-01-06
JPS622410B2 JPS622410B2 (en) 1987-01-20

Family

ID=13224720

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6327985A Granted JPS61273A (en) 1985-03-29 1985-03-29 Production of insulator

Country Status (1)

Country Link
JP (1) JPS61273A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102243914A (en) * 2010-05-13 2011-11-16 苏州爱建电瓷有限公司 Binding process of insulator

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS496016A (en) * 1972-05-10 1974-01-19
JPS5345322A (en) * 1976-10-07 1978-04-24 Ube Industries Production of ultralighttweight concrete of high strength

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS496016A (en) * 1972-05-10 1974-01-19
JPS5345322A (en) * 1976-10-07 1978-04-24 Ube Industries Production of ultralighttweight concrete of high strength

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102243914A (en) * 2010-05-13 2011-11-16 苏州爱建电瓷有限公司 Binding process of insulator

Also Published As

Publication number Publication date
JPS622410B2 (en) 1987-01-20

Similar Documents

Publication Publication Date Title
WO1989002878A1 (en) Cement composition curable at low temperatures
JPH0341420B2 (en)
CN110937874A (en) Gypsum mortar with high water resistance and preparation method thereof
JPS6363505B2 (en)
JPS5830257B2 (en) Water-resistant gypsum composition
JP3584723B2 (en) Manufacturing method of hardened cement
JPS61273A (en) Production of insulator
JP3813374B2 (en) Construction method of sprayed cement concrete using setting modifier slurry
CN116444237B (en) Polymer sulphoaluminate cement repair mortar and preparation method and application thereof
JPH0476941B2 (en)
JPH0288451A (en) Waterproof cement admixture
JP2024501295A (en) Three-component hydraulic binder composition
JPH10167792A (en) Method for producing fiber-reinforced cement composition and hardened cement body
CN112028587A (en) Glass fiber reinforced desulfurization building gypsum composite material and preparation method thereof
JPS5845762B2 (en) Insulator manufacturing method
JPH01141861A (en) Method for retarding setting of cement
JPH11310443A (en) Admixture for cement and production of cement-based hardened product
JP3844391B2 (en) Method for producing mortar or concrete member
JPS5951504B2 (en) Heat-curing cement composition
JP2005263567A (en) Manufacturing method of high-strength centrifugal force molded product and high-strength centrifugal force molded product
JPS61286256A (en) Glass fiber reinforced concrete formed product composition
JP2916481B2 (en) Manufacturing method of hardened cement mortar and concrete
JP3907980B2 (en) Manufacturing method of cement molding
JPS61286252A (en) Cement composition
JPH0637319B2 (en) Method for curing cement composition