JP2000185936A - Lead-free low-melting point glass composition for cement product - Google Patents

Lead-free low-melting point glass composition for cement product

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Publication number
JP2000185936A
JP2000185936A JP10363315A JP36331598A JP2000185936A JP 2000185936 A JP2000185936 A JP 2000185936A JP 10363315 A JP10363315 A JP 10363315A JP 36331598 A JP36331598 A JP 36331598A JP 2000185936 A JP2000185936 A JP 2000185936A
Authority
JP
Japan
Prior art keywords
mol
glass composition
lead
glaze
free low
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
JP10363315A
Other languages
Japanese (ja)
Other versions
JP2990194B1 (en
Inventor
Kunio Takeuchi
國雄 竹内
Yasuhiro Matsumoto
康浩 松本
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.)
SANSHIN KENZAISHIYA KK
Tomatec Co Ltd
Original Assignee
SANSHIN KENZAISHIYA KK
Tokan Material Technology Co Ltd
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Application filed by SANSHIN KENZAISHIYA KK, Tokan Material Technology Co Ltd filed Critical SANSHIN KENZAISHIYA KK
Priority to JP36331598A priority Critical patent/JP2990194B1/en
Application granted granted Critical
Publication of JP2990194B1 publication Critical patent/JP2990194B1/en
Publication of JP2000185936A publication Critical patent/JP2000185936A/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

PROBLEM TO BE SOLVED: To provide a lead-free low-melting point glass composition for cement products capable of suppressing deterioration of burned cement substrate to the minimum. SOLUTION: This glass composition is used as glaze in the baking range of 700-850 deg.C. The glass composition comprises 35-60 mol% SiO2, 16-26 mol% B2O3, 6-8 mol% Li2O, 4-17 mol% R2O and 5-15 mol% RO in which R2O is either one of Na2O and K2O and RO is at least one compound among MgO, CaO, ZnO, BaO and SrO and as necessary, further comprises <=10 mol% Al2O3, <=10 mol% ZrO2 or TiO2 represented by R2O, <=4 mol% at least one compound among Ta2O5, Nb2O5 and V2O5 represented by R2O5 and <=4 mol% at least one compound of La2O3 and Sb2O3 represented by R2O3.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、低温焼成したセメ
ント製品の表面状態を改質するための釉薬に使用する鉛
を含まない低融点ガラス組成物、いわゆるフリット組成
物に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a low-melting glass composition containing no lead, which is used as a glaze for modifying the surface condition of a low-temperature calcined cement product, a so-called frit composition.

【0002】[0002]

【従来の技術】近年、粘土資源の枯渇に伴い、陶磁器の
代替品として焼成セメント製品が出現した。この焼成セ
メント製品は、焼成中、セメント中の結晶水が失われる
ことになり、焼成直後に機械的強度が失われハンドリン
グ性を失うばかりではなく、欠けを生じやすく、また、
養生期間中に白華を生じやすく、表面状態が荒れてしま
う。このため、焼成前のセメント製品に釉薬を施して、
焼成によるこのような問題を解消する手当が行われてき
た。
2. Description of the Related Art In recent years, with the depletion of clay resources, calcined cement products have emerged as substitutes for ceramics. This calcined cement product loses crystal water in the cement during calcining, not only loses mechanical strength immediately after calcining and loses handling properties, but also tends to chip,
During the curing period, efflorescence easily occurs, and the surface condition becomes rough. For this reason, glaze is applied to the cement product before firing,
Attempts have been made to eliminate such problems due to firing.

【0003】従来から、このための釉薬組成物として、
鉛系あるいはリン酸系の釉薬が用いられてきたが、これ
らは、元来が比較的低温焼成物のためのものであるた
め、セメント製品のように650℃以上の温度での焼成
では、耐候性、耐薬品性に劣り、また、野外で使用され
る製品に適用した場合には、光沢が失われてしまうとい
う欠点があった。
[0003] Conventionally, as a glaze composition for this purpose,
Lead-based or phosphoric acid-based glazes have been used, but since these are originally intended for relatively low-temperature fired products, when fired at a temperature of 650 ° C. or more, such as cement products, they are resistant to weathering. Inferior in properties and chemical resistance, and when applied to products used outdoors, there is a drawback that gloss is lost.

【0004】このような従来の釉薬組成物の欠点を解消
して、セメント製品の釉薬に適した組成物として、より
高温の焼成温度に耐えられるように、SiO2を主体と
し、Al23その他を加え、SiO2とAl23との量
調整を行った組成物が特公平6−48464号公報、特
公平4−32022号公報等に開示されている。
[0004] As a composition suitable for glazes of cement products, it is mainly composed of SiO 2 and Al 2 O 3 so as to be able to withstand higher firing temperatures as a composition suitable for glazes of cement products. In addition to the above, compositions in which the amounts of SiO 2 and Al 2 O 3 are adjusted are disclosed in JP-B-6-48464, JP-B-4-32022 and the like.

【0005】[0005]

【発明が解決しようとする課題】しかしながら、これら
の高温の焼成用の釉薬組成物は、専ら、焼成後、表面に
形成された釉薬の耐候性を重視したものであるため、実
際には、釉薬としての表面状態を形成させるためには、
焼成温度を850℃以上の高温にせざるを得ないもので
ある。そのため、その基材であるセメントの焼成後の劣
化は著しく、そのため、焼成直後の強度の低下によるハ
ンドリングの悪さ、白華の発生による見苦しさ等は避け
られなかった。
However, these glaze compositions for firing at a high temperature mainly focus on the weather resistance of the glaze formed on the surface after firing, so that the glaze composition is actually In order to form the surface state as
The sintering temperature must be 850 ° C. or higher. Therefore, the deterioration of the cement, which is the base material, after firing is remarkable. Therefore, poor handling due to a decrease in strength immediately after firing, unsightlyness due to occurrence of efflorescence, and the like cannot be avoided.

【0006】本発明が解決すべき課題は、釉薬としての
機能が発揮でき、セメント製品の焼成温度で、しかも、
その焼成温度範囲内の低温での焼成温度に適用しても、
焼成後の釉薬の表面状態、耐候性を劣化させることがな
く、焼成セメント基材の劣化を最小に抑えることができ
る釉薬を提供することにある。
[0006] The problem to be solved by the present invention is that the function as a glaze can be exhibited, and at the firing temperature of the cement product,
Even if applied to the firing temperature at a low temperature within the firing temperature range,
An object of the present invention is to provide a glaze capable of minimizing deterioration of a calcined cement substrate without deteriorating the surface condition and weather resistance of the glaze after firing.

【0007】[0007]

【課題を解決するための手段】本発明は、焼成セメント
製品における焼成温度の下限は、700℃であり、ま
た、その上限は、燃費は勿論、養生時間の短縮によるコ
ストダウン、白華防止、単位時間当たりの生産性等から
考えて850℃とする着想の下で完成した。
According to the present invention, the lower limit of the calcination temperature in the calcination cement product is 700 ° C., and the upper limit thereof is not only the fuel consumption but also the cost reduction by shortening the curing time, the prevention of bleaching, It was completed under the idea of 850 ° C. in view of productivity per unit time and the like.

【0008】すなわち、本発明の無鉛低融点ガラス組成
物は、700〜850℃の温度範囲で、釉薬としての機
能が発揮できる無鉛低融点ガラス組成物(フリット組成
物)であって、R2OをNa2O,K2Oの中の何れか1
種とし、ROをMgO,CaO,ZnO,BaO,Sr
Oの中の少なくとも1種としたとき、全量中、 SiO2 35〜60 モル% B23 16〜26 モル% Li2O 6〜8 モル% 2O 4〜17 モル% RO 5〜15 モル% を含有することを特徴とする。
That is, the lead-free low-melting glass composition of the present invention
The material is used as a glaze in a temperature range of 700 to 850 ° C.
Lead-free low-melting glass composition (frit composition)
Object) and RTwoO to NaTwoO, KTwoAny one of O
RO as MgO, CaO, ZnO, BaO, Sr
When at least one of O is used, SiOTwo 35-60 mol% BTwoOThree16-26 mol% LiTwoO 6-8 mol%  RTwoIt is characterized by containing 4 to 17 mol% of O and 5 to 15 mol% of RO.

【0009】上記組成において、SiO2 は、その骨格
をなすもので、釉薬として融点を規定するものである。
また、釉薬の耐酸性を向上させるもので、そのために
は、35モル%以上必要であり、60モル%を超えると
耐火性が増し、釉薬として機能しなくなる。
In the above composition, SiO 2 forms its skeleton and defines a melting point as a glaze.
Further, it improves the acid resistance of the glaze, and for that purpose, it needs to be 35 mol% or more. If it exceeds 60 mol%, the fire resistance increases and the glaze does not function.

【0010】B23 は、SiO2を基材とする組成物を
ガラス形成のための融剤として機能するもので、釉薬の
低融化に寄与し、SiO2とのモル%比で、SiO2:B
23が35〜60:16〜26の間にあることが、失透
を起こさないと同時に他成分の結晶化を防げる点から最
も好都合である。
[0010] B 2 O 3 is a composition SiO 2 as a base material which functions as a fluxing agent for glass formation, contribute to the glaze low-melting, by mol% ratio of SiO 2, SiO 2 : B
It is most advantageous that the 2 O 3 is between 35 and 60:16 and 26 in order not to cause devitrification and at the same time to prevent crystallization of other components.

【0011】 Li2Oは、6.0モル%以上の添加によ
り、800℃以下のでのフリットの溶融温度の低下に寄
与し、750℃〜800℃の焼成を可能とする釉薬が得
られる。しかしながら、8モル%を超えると耐酸性が悪
くなる。
[0011] LiTwoO is added by adding 6.0 mol% or more.
Lowering the melting temperature of the frit below 800 ° C
To obtain a glaze that can be fired at 750 ° C to 800 ° C.
Can be However, when it exceeds 8 mol%, acid resistance is poor.
It becomes.

【0012】R2Oとして表わされるNa2OあるいはK
2Oは、釉薬としての機能を維持させながら、その融点
の調整剤としての機能を持たせたもので、その目的とす
る700℃以上、850℃以下の温度範囲で釉薬として
の機能を維持させるためには、4〜17モル%の含有量
が必要である。
Na 2 O or K, represented as R 2 O
2 O is while maintaining the function as a glaze, but have a function of an adjusting agent of its melting point, 700 ° C. or higher and an object thereof to maintain the function of the glaze in the temperature range of 850 ° C. or less For this purpose, a content of 4 to 17 mol% is necessary.

【0013】ROは、MgO,CaO,ZnO,Ba
O,SrO等のアルカリ土類金属の酸化物を意味し、そ
の中の少なくとも1種以上が用いられる。これは、耐摩
耗性、耐候性、熱膨張係数低下材として機能し、5〜1
5モル%含有する必要がある。また、本発明の組成物に
は、全量中、耐薬品性の向上、分相抑制に寄与するAl
23を耐候性向上のために含有させることができる。し
かしながら、その配合量が増えると、融点が急激に上昇
するので、その融点が850℃以下での釉薬として機能
させるためには、その上限は10モル%に抑える必要が
ある。
RO is composed of MgO, CaO, ZnO, Ba.
It means an oxide of an alkaline earth metal such as O or SrO, and at least one of them is used. It functions as a material having a low abrasion resistance, weather resistance, and thermal expansion coefficient.
It is necessary to contain 5 mol%. Further, the composition of the present invention contains, in the total amount, Al which contributes to improvement of chemical resistance and suppression of phase separation.
2 O 3 can be included for improving weather resistance. However, as the blending amount increases, the melting point sharply increases. Therefore, in order to function as a glaze at a melting point of 850 ° C. or lower, the upper limit must be suppressed to 10 mol%.

【0014】さらに、本発明の組成物には、その光沢、
乳白性、さらには、膨脹の程度を調整するために、一般
式がRO2で表されるZrO2、TiO2を全量中、10
モル%以下配合することができる。
Further, the composition of the present invention has a gloss,
In order to adjust the milkiness and the degree of expansion, 10% of the total amount of ZrO 2 and TiO 2 represented by the general formula of RO 2 is used.
Molar% or less can be added.

【0015】また、さらに、R25で表されるTa
25、Nb25、V25の中の少なくとも1種を、同じ
く、その光沢、濁り、さらには、膨脹の程度を微調整す
るために、4モル%以下配合することができる。
Further, Ta represented by R 2 O 5
At least one of 2 O 5 , Nb 2 O 5 , and V 2 O 5 can also be blended in an amount of 4 mol% or less in order to finely adjust the gloss, turbidity, and degree of expansion. .

【0016】この無鉛低融点ガラス組成物を釉薬として
使用するには、通常のように、顔料、粘土と混合し、こ
れをCMCと水によってスリップとし、ハケ塗り、スプ
レーによって、セメント製品の表面に塗布して焼成に供
する。
In order to use this lead-free low-melting glass composition as a glaze, as usual, it is mixed with a pigment and clay, slipped with CMC and water, brushed and sprayed onto a cement product surface. Apply and serve for baking.

【0017】[0017]

【発明の実施の形態】本発明の実施の形態を以下に示す
実施例によって説明する。
DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described with reference to the following examples.

【0018】配合物の組成 表1に示す組成を有する配合物を調製した。Composition of Formulation A formulation having the composition shown in Table 1 was prepared.

【0019】[0019]

【表1】 [Table 1]

【表2】 同表において、テストNo.h〜lは本発明の実施例を
示し、他は比較例を示す。
[Table 2] In the same table, Test Nos. H to l show examples of the present invention, and others show comparative examples.

【0020】釉薬の調合 釉薬調合は、表1に示す組成物100gに対して、表2
に示すg単位の顔料、粘土、CMCを配合し、2kgポ
ットミルを使用し、粉砕粒度を1〜3g/100メッシ
ュ/50ccにそろえスリップを作成した。
Preparation of glaze The preparation of the glaze was based on 100 g of the composition shown in Table 1 and Table 2
The pigments, clay and CMC in the units of g shown in Table 1 were blended, and a 2 kg pot mill was used to prepare a slip having a crushed particle size of 1 to 3 g / 100 mesh / 50 cc.

【0021】施釉 作成したスリップを80g(wet)をスプレーガンに
よって強制乾燥済のセメント製品に30cm×30cm
の面に施釉した。
Glaze Apply 80 g (wet) of the prepared slip to a cement product which has been forcibly dried by a spray gun at a size of 30 cm × 30 cm.
Glazed on the surface.

【0022】焼成 施釉したセメント製品を乾燥後、ガス炉で750℃で焼
成(昇温時間は4時間、保持時間1時間)し、焼成後、
200℃まで自然冷却をして炉から取り出した。
Firing After the glazed cement product is dried, it is fired in a gas furnace at 750 ° C. (heating time is 4 hours, holding time is 1 hour).
It was cooled naturally to 200 ° C. and taken out of the furnace.

【0023】その表面状態は、本発明の実施例の場合、
750℃で焼成すると光沢良好、なめらかであるのに対
して、比較例の場合は、釉薬としての機能が不十分で、
表面が凸凹し、光沢不良で明らかに釉薬のとけ不足を示
した。
The surface condition is as follows in the case of the embodiment of the present invention.
When baked at 750 ° C., gloss is good and smooth, whereas in the case of Comparative Example, the function as a glaze is insufficient.
The surface was uneven, and the gloss was poor and the glaze was clearly insufficient.

【0024】水分補給 取り出した焼成物を直ちに水中に10分間浸し、水を吸
収させ結晶水の補給を行い、60℃で蒸気養生を行っ
た。養生時間は今まで7日間であったものが、本発明の
実施例の場合、3日間で十分な強度が得られた。
Water replenishment The fired product taken out was immediately immersed in water for 10 minutes, water was absorbed to replenish crystal water, and steam curing was performed at 60 ° C. The curing time was seven days, but in the case of the present invention, sufficient strength was obtained in three days.

【0025】また、耐候テスト、耐酸テスト、耐アルカ
リテスト、白華(エフロ)発生の確認テスト、強度テス
トの結果は、比較例とほぼ同等であった。
The results of the weather resistance test, the acid resistance test, the alkali resistance test, the test for confirming the occurrence of efflorescence and the strength test were almost the same as those of the comparative example.

【0026】耐候テスト 紫外線による変化を見るためにウエザーメーターを使用
し2000時間の変化を観察した。
Weather resistance test A change of 2000 hours was observed using a weather meter in order to check a change due to ultraviolet rays.

【0027】評価は色差と光の反射率をみた。For evaluation, the color difference and the reflectance of light were examined.

【0028】光沢評価は反射率をみた。The gloss was evaluated by looking at the reflectance.

【0029】 反射率 80%以上 A 60%以上 79%以下 B 40%以上 59%以下 C 39%以下 D 色差の評価はウエザーメーターテスト前後のΔE*を見た ΔE*=0.5以下 A ΔE*=0.5以上 1以下 B ΔE*= 1以上 2以下 C ΔE*= 2以上 D 本発明の実施例と比較例との対比:本発明の反射率は、
80%以上を示し、比較例は63%であった。又、色差
は本発明でΔE*=0.47であり、比較例はΔE*
0.78を示した。
Reflectance 80% or more A 60% or more and 79% or less B 40% or more and 59% or less C 39% or less D Evaluation of color difference is ΔE * before and after the weather meter test ΔE * = 0.5 or less A ΔE * = 0.5 or more and 1 or less B ΔE * = 1 or more and 2 or less C ΔE * = 2 or more D Comparison between Examples of the Present Invention and Comparative Examples: The reflectance of the present invention is:
80% or more, and the comparative example was 63%. In the present invention, the color difference is ΔE * = 0.47, and the comparative example is ΔE * = 0.47.
0.78 was shown.

【0030】耐酸テスト JISA5209陶磁器タイルの釉薬品試験に準じ、3
%塩酸液を作成し、それに切り出した瓦を浸して24時
間後の変化を目視で観察評価した。
Acid resistance test According to JIS A5209 ceramic tile glaze chemical test, 3
% Hydrochloric acid solution was prepared, the cut roof tile was immersed in the solution, and the change after 24 hours was visually observed and evaluated.

【0031】評価は 全くマークがつかない −A かすかにマークがつく −B マークがつくが変色なし −C マークが変色している −D とした。The evaluation was as follows: no mark was attached; -A mark was slightly attached; -B mark was attached but no discoloration was made; -C mark was discolored -D.

【0032】耐アルカリテスト 同様に焼成したセメント製品を切り取って3%水酸化ナ
トリウム溶液に浸けて変化を見た。
Alkali Resistance Test A cement product similarly baked was cut out and immersed in a 3% sodium hydroxide solution to observe changes.

【0033】白華(エフロ)発生の確認 養生期間を経て屋外に1週間放置後の白華の発生を観察
した。
Confirmation of Efflorescence Occurrence of efflorescence after one week of standing outdoors after a curing period was observed.

【0034】評価は 白華の確認が出来ない −A わずかに白華 −B 貫入部分の白華著しい −C 本発明の実施例の場合と比較例との対比:本発明では白
華の確認が出来なかったが、比較例はわずかに白華を生
じた。
In the evaluation, no white flower could be confirmed. -A Slight white flower -B White flower in the penetrated portion was significant -C Comparison between the example of the present invention and the comparative example: In the present invention, the white flower was confirmed. Although not possible, the comparative example produced slight efflorescence.

【0035】強度テスト 曲げ破壊試験器を使用してJIS5402に基づく強度
を比較した。
Strength Test The strength based on JIS5402 was compared using a bending fracture tester.

【0036】本発明の実施例の場合と比較例との比較:
ともに差は認められなかった。
Comparison between the embodiment of the present invention and the comparative example:
No difference was observed in both cases.

【0037】[0037]

【発明の効果】本発明の組成物によって以下の効果を奏
する。
The composition of the present invention has the following effects.

【0038】1) 比較的低温での釉焼が可能なのでセ
メント製品の焼成による劣化の程度が少ない。
1) Since the glaze can be fired at a relatively low temperature, the degree of deterioration due to firing of the cement product is small.

【0039】2) セメント基材への施釉、焼成では養
生期間が短くてすみ、経済性が高い。 3) 耐凍害性に優れた基材が得られる。
2) Glazing and sintering of a cement base material requires only a short curing period and is economically efficient. 3) A substrate excellent in frost damage resistance can be obtained.

【0040】4) 高温焼成の釉薬と同等の耐候性、耐
酸性が得られる。
4) Weather resistance and acid resistance equivalent to glazes fired at high temperatures can be obtained.

─────────────────────────────────────────────────────
────────────────────────────────────────────────── ───

【手続補正書】[Procedure amendment]

【提出日】平成11年1月28日(1999.1.2
8)
[Submission date] January 28, 1999 (1999.1.2
8)

【手続補正1】[Procedure amendment 1]

【補正対象書類名】明細書[Document name to be amended] Statement

【補正対象項目名】0011[Correction target item name] 0011

【補正方法】変更[Correction method] Change

【補正内容】[Correction contents]

【0011】Li2Oは、フリットの溶融温度の低下に
寄与し、6.0モル%以上の添加により、700℃〜8
50℃の焼成を可能とする釉薬が得られる。しかしなが
ら、8モル%を超えると耐酸性が悪くなる。
[0011] Li 2 O reduces the melting temperature of the frit.
The contribution to the addition of more than 6.0 mol%, 700 ° C. to 8
A glaze that can be fired at 50 ° C. is obtained. However, when it exceeds 8 mol%, the acid resistance becomes poor.

フロントページの続き Fターム(参考) 4G028 DA01 DB02 DC01 4G062 AA08 AA09 BB05 CC10 DA05 DA06 DB01 DB02 DB03 DC04 DD01 DE00 DE01 DE02 DE03 DE04 DF01 EA03 EB01 EB02 EB03 EB04 EC01 EC02 EC03 EC04 ED00 ED01 ED02 ED03 ED04 EE00 EE01 EE02 EE03 EE04 EF00 EF01 EF02 EF03 EF04 EG00 EG01 EG02 EG03 EG04 FA01 FA10 FB01 FB02 FB03 FC01 FC02 FC03 FD01 FE01 FF01 FF02 FF03 FG01 FG02 FG03 FH01 FH02 FH03 FJ01 FK01 FK02 FK03 FL01 GA01 GA10 GB01 GC01 GD01 GE01 HH01 HH03 HH05 HH07 HH09 HH11 HH13 HH15 HH17 HH20 JJ01 JJ03 JJ04 JJ05 JJ07 JJ10 KK01 KK03 KK05 KK07 KK10 MM07 NN32 NN34Continued on the front page F-term (reference) 4G028 DA01 DB02 DC01 4G062 AA08 AA09 BB05 CC10 DA05 DA06 DB01 DB02 DB03 DC04 DD01 DE00 DE01 DE02 DE03 DE04 DF01 EA03 EB01 EB02 EB03 EB04 EC01 EC02 EC03 EC04 ED00 ED03 ED03 ED03 ED03 EF00 EF01 EF02 EF03 EF04 EG00 EG01 EG02 EG03 EG04 FA01 FA10 FB01 FB02 FB03 FC01 FC02 FC03 FD01 FE01 FF01 FF02 FF03 FG01 FG02 FG03 FH01 FH02 FH03 HJ01 FK01 H01 H01 H01 H01 GA01 JJ01 JJ03 JJ04 JJ05 JJ07 JJ10 KK01 KK03 KK05 KK07 KK10 MM07 NN32 NN34

Claims (5)

【特許請求の範囲】[Claims] 【請求項1】 700〜850℃の焼成範囲で釉薬とし
て使用するセメント製品用無鉛低融点ガラス組成物であ
って、 全量中、R2OをNa2O,K2Oの中の何れか1種と
し、ROをMgO,CaO,ZnO,BaO,SrOの
中の少なくとも1種としたとき、 SiO2 35〜60 モル% B23 16〜26 モル% Li2O 6〜8 モル% 2O 4〜17 モル% RO 5〜15 モル% を含有するセメント製品用無鉛低融点ガラス組成物。
1. A glaze in a firing range of 700 to 850 ° C.
Lead-free low melting glass composition for cement products
I mean, RTwoO to NaTwoO, KTwoAny one of O
And RO is made of MgO, CaO, ZnO, BaO, SrO.
When at least one of them is used, SiOTwo 35-60 mol% BTwoOThree16-26 mol% LiTwoO 6-8 mol%  RTwoA lead-free low-melting glass composition for cement products containing 4 to 17 mol% of O and 5 to 15 mol% of RO.
【請求項2】 全量中、Al23を10モル%以下含有
する請求項1に記載のセメント製品用無鉛低融点ガラス
組成物。
2. The lead-free low-melting glass composition for a cement product according to claim 1, which contains 10 mol% or less of Al 2 O 3 in the total amount.
【請求項3】 全量中、RO2で表されるZrO2,Ti
2を10モル%以下含有する請求項1あるいは請求項
2に記載のセメント製品用無鉛低融点ガラス組成物。
3. ZrO 2 , Ti represented by RO 2 in the total amount
O 2 to claim 1 or cement products for lead-free low-melting-point glass composition as claimed in claim 2 containing less than 10 mol%.
【請求項4】 全量中、R25で表されるTa25、N
25、V25の中の少なくとも1種を4モル%以下含
有する請求項1から請求項3の何れかに記載のセメント
製品用無鉛低融点ガラス組成物。
4. Ta 2 O 5 , N represented by R 2 O 5 in the total amount
b 2 O 5, V 2 O cement products for lead-free low-melting-point glass composition according to any one of claims 1 to 3, which contains at least one 4 mol% or less in 5.
【請求項5】 全量中、R23で表されるLa23、S
23中の少なくとも1種を4モル%以下含有する請求
項1から請求項4の何れかに記載のセメント製品用無鉛
低融点ガラス組成物。
5. La 2 O 3 , S represented by R 2 O 3 in the total amount
b 2 O 3 cement products for lead-free low-melting-point glass composition according to claim 1 which contains at least one 4 mol% or less to claim 4 in.
JP36331598A 1998-12-21 1998-12-21 Lead-free low melting point glass composition for cement products Expired - Fee Related JP2990194B1 (en)

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JP2000185936A true JP2000185936A (en) 2000-07-04

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7605104B2 (en) 2005-07-29 2009-10-20 Samsung Electro-Mechanics Co., Ltd. Glass composition for low temperature sintering, dielectric composition and multilayer ceramic capacitor using the same
CN102659314A (en) * 2012-04-27 2012-09-12 中南大学 Barium oxide based crystal lead-free glass and preparation method thereof
KR101195002B1 (en) 2011-02-28 2012-10-29 이화다이아몬드공업 주식회사 Vitrified bonder for micro blade, micro blade using the vitrified bonder and manufacturing method of the micro blade

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7605104B2 (en) 2005-07-29 2009-10-20 Samsung Electro-Mechanics Co., Ltd. Glass composition for low temperature sintering, dielectric composition and multilayer ceramic capacitor using the same
US7691762B2 (en) 2005-07-29 2010-04-06 Samsung Electro-Mechanics Co., Glass composition for low temperature sintering, glass frit, dielectric composition and multilayer ceramic capacitor using the same
US7851393B2 (en) 2005-07-29 2010-12-14 Samsung Electro-Mechanics Co., Ltd. Glass composition for low temperature sintering, glass frit, dielectric composition and multilayer ceramic capacitor using the same
KR101195002B1 (en) 2011-02-28 2012-10-29 이화다이아몬드공업 주식회사 Vitrified bonder for micro blade, micro blade using the vitrified bonder and manufacturing method of the micro blade
CN102659314A (en) * 2012-04-27 2012-09-12 中南大学 Barium oxide based crystal lead-free glass and preparation method thereof

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