TW466219B - Casting refractory composition and method of wet spraying thereof - Google Patents

Casting refractory composition and method of wet spraying thereof Download PDF

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Publication number
TW466219B
TW466219B TW87100187A TW87100187A TW466219B TW 466219 B TW466219 B TW 466219B TW 87100187 A TW87100187 A TW 87100187A TW 87100187 A TW87100187 A TW 87100187A TW 466219 B TW466219 B TW 466219B
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Taiwan
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refractory
refractory composition
alkali metal
composition
construction method
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TW87100187A
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Chinese (zh)
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Hiroshi Watabe
Kunio Tanaka
Nobuyuki Takahashi
Satoshi Ota
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Taiko Refractories
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Abstract

The present invention is to provide a casting refractory composition which has high density, strength and anticorrosion, and can obtain fine castable refractory workpiece which is excellent in thermal stress absorptivity and antispalling property. The casting refractory composition not containing cement of the present invention comprises 100 wt% of 70-98 wt% of fireproof aggregate with a diameter less than 10 mm and 2-30 wt% of fireproof hyperfine powder with a diameter less than 10 μm, and 0.3-2 wt% of basic aluminum lactate in addition to the 100 wt%. The spraying is performed by kneading said refractory composition with water or other kneading liquid and regulating it into castable softness, pumping out to the spray nozzle with compressing pump, and adding 0.2-1 wt% (in addition to 100%) of shape retention donator in water liquid state which is formed with said spray nozzle from alkali silicate or alkali aluminate together with compressed air.

Description

.......... 一 I, , Vi, 4 6 6 21 9 A7 B7 經濟部中央標準局男工消费合作社印裂 五、發明説明 ( 1 ) [ 1 發 明 所 Μ 抟 術 範 嶠 1 1 本 發 明 係 關 於 用 做 熔 桶 % 澆 桶 閛 門 等 熔 體 金 屬 容 器 1 i 内 襯 材 料 之 密 實 不 定 形 耐 火 物 製 造 用 澆 注 耐 火 組 成 物 f 諱 1 先 1 及 其 濕 式 嗔 敷 施 工 法 Ο 閱 1 知 桉 術 背 1 之 1 密 實 澆 注 耐 火 組 成 物 用 水 或 其 他 混 練 液 9 加 Μ 混 練 調 意 1 I 節 澆 注 軟 度 的 作 業 性 t 用 壓 送 泵 輸 送 到 嗔 敷 嗔 嘴 以 該 事 項 1 再 1 I 噴 敷 噴 嘴 9 將 壓 縮 空 氣 和 賦 形 劑 或 凝 集 劑 , 做 為 水 溶 液 4 寫 本 J 裝 添 加 » Κ 濕 式 噴 敷 施 工 之 施 X 法 t 與 習 知 乾 式 、 半 乾 式 頁 •s_^ 1 | 或 濕 式 噴 敷 腌 工 法 相 較 > 施 工 性 和 施 工 體 品 質 格 外 優 異。 1 1 關 於 施 工 法 上 述 濕 式 噴 敷 施 工 法 由 於 再 結 合 損 失 或 ! [ 灰 塵 少 9 不 必 靠 噴 嘴 技 術 人 員 的 技 能 進 行 水 量 調 節 > 故 1 訂 施 工 安 定 , 為 其 優 點 Ο 至 於 施 工 體 的 品實 ,由 於 施 工 體 的 1 組 織 均 匀 而 密 實 t 與 習 知 噴 敷 法 相 較 j 耐 蝕 性 和 強 度 格 I I 外 優 異 » 可 與 % 注 胞 X 體 媲 美 0 1 1 I 惟 此 等 濕 式 噴 敷 施 工 法 即 使 有 施 工 體 組 織 密 實 f 使 1 用 時 會 因 熱 tr*T? 應 力 發 生 傳 播 Λ 龜 裂 » 為 其 問 題 所 在 0 I 發 明 所 要 解 決 的 課 1 1 因 此 本 發 明 之 g 的 在 於 提 供 一 種 可 澆 注 的 耐 火 組 成 ! 1 物 9 及 使 用 此 組 成 物 之 m 式 噴 敷 胞 工 法 4 可 得 具 有 高 密 1 度 Λ 強 度 和 耐 餽 性 » 且 熱 應 力 吸 收 性 和 附 熱 震 性 Jiff 俊 良 之 1 密 實 不 定 形 附 火 物 施 工 體 0 1 解 決 課 1 的 手 段 1 為 解 決 上 述 間 題 t 本 發 明 潛 心 研 究 結 果 9 發 現 雖 含 有 I -3 1 1 1 1 本紙張尺度適用中國國家標準(CNS ) A4規格(210'乂297公釐) 4 6 6 21 9 A7 ___ B7 五、發明説明(2 ) 附火性基材和耐火性超微粉,但不含水泥的澆注耐火組 成物所構成胞工體,具有優異賦形性,熱應力吸收性和 附熱震性,故於澆注耐火組成物添加鹼性乳酸鋁,非常 有效,而完成本發明。 即,不含水泥的本發明澆注耐火組成物,其特徵為, 相對於調節粒度到粒徑10 mm Μ下的耐火性基材70-9 8 wt% 和粒徑10 w mK下耐火性超微粉2-30 wt % 合計 100 wt% ,表觀添加鹼性乳酸鋁0.3-2 wt% 。 另外,本發明濕式噴敷施工法之特徵為,將上述澆注 耐火組成物用水或其他混練液加Μ混練,調節澆注軟度 的作業性,用壓送泵輸送至噴敷噴嘴,利用該噴敷噴嘴 將壓縮空氣i連同相對於該耐火性基材和該耐火性超微 粉合計100 wt% ,添加按固體基準為0.2-1 wt% (表觀)的賦形劑水溶液,加Μ嗔敷施工。 發明當掄形裤 (請先閲讀背面之注意事項再填寫本頁} 發 本 有 含 物 成 組 火 耐 注 澆 述鮏明 下 如物 明成 發組 本* 材 基 性 火 附 耐 經濟部中央標準局員工消費合作杜印犁 鋁 酸 乳 性 鹸.......... I,, Vi, 4 6 6 21 9 A7 B7 Printed by the Male Workers Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs. 5. Description of the Invention (1) [1 1 1 This invention relates to molten metal containers used as melting barrels, ladles, gates, and other molten metal containers. 1 i Pouring refractory composition for the manufacture of dense and irregular refractory lining materials. F 1 1 and its wet application method 〇 Read 1 Knowing Eucalyptus Back 1 -1 densely pouring refractory composition with water or other mixing solution 9 plus Μ mixing and adjusting 1 section I workability of pouring softness t conveyed to the applicator with a pressure pump for this matter 1 Another 1 I spraying nozzle 9 uses compressed air and excipients or agglutinants as an aqueous solution 4 writing book J Add »KK wet spraying application X method t and the conventional dry and semi-dry pages • s_ ^ 1 | Or wet spraying and pickling method is superior to > the workability and the quality of the work body are particularly good. 1 1 About the construction method The above wet spray construction method is lost due to recombination or! [Less dust 9 does not need to rely on the skills of the nozzle technician to adjust the amount of water> so, 1 order construction stability, its advantages 〇 As for the quality of the construction body Because the 1 structure of the construction body is uniform and dense, compared with the conventional spray method, the corrosion resistance and strength are exceptionally excellent »Can be comparable to the% injection cell X body 0 1 1 I There is a compact structure of the construction body f. When it is used 1, it will spread due to the heat tr * T? The stress is transmitted Λ cracking »It is the problem 0 I The lesson to be solved by the invention 1 1 Therefore, the g of the present invention is to provide a castable refractory Composition! 1 object 9 and m-type spray cell method using this composition 4 can obtain high density 1 degree Λ strength and feed resistance »and thermal stress absorption and heat Seismic Jiff Junliang No. 1 Dense and Unshaped Fire Structures 0 1 Solving Lesson 1 Means 1 In order to solve the above-mentioned problem t The results of intensive research of the present invention 9 It is found that although it contains I -3 1 1 1 1 This paper scale is applicable to China Standard (CNS) A4 specification (210 '乂 297 mm) 4 6 6 21 9 A7 ___ B7 V. Description of the invention (2) Pouring refractory composition with fire-resistant base material and fire-resistant ultrafine powder, but without cement The composition of the cellular body has excellent shapeability, thermal stress absorption, and thermal shock resistance. Therefore, adding alkaline aluminum lactate to the cast refractory composition is very effective, and completed the present invention. That is, the cement-containing cast refractory composition of the present invention is characterized in that it adjusts the particle size to a refractory base material having a particle size of 10 mm and 70-9 8 wt% and a refractory ultrafine powder having a particle size of 10 w mK. 2-30 wt% total 100 wt%, 0.3-2 wt% of alkaline aluminum lactate is apparently added. In addition, the wet spraying construction method of the present invention is characterized in that the above-mentioned cast refractory composition is mixed with water or other kneading liquid and mixed with M to adjust the workability of the pouring softness, and is conveyed to a spray nozzle by a pressure feed pump, and the spray is used. The application nozzle applies compressed air i with 100 wt% of the refractory base material and the refractory ultrafine powder in total, adds an aqueous vehicle solution of 0.2-1 wt% (apparent) on a solid basis, and applies the application . Invented as trousers (please read the precautions on the back before filling out this page) The book contains a set of fire-resistant injection molding instructions, as shown below, such as the Wuming Chengfa * * Material-based fire with central standards of the Ministry of Economic Affairs Bureau Consumer Consumption Cooperation

化 氧 结 繞 鋁 化 氧 熔 電 選 係 材 基 ) 性 (C火 和材耐 ,基用 粉性所 微火明 超耐發 性}本 火U 蠟錐Μ -ί I、 、 粉鍩二 燒化可 、 氧時 石、要 柱鎂必 紅化, 鋁氧種 富 、 一 、石少 石晶至 柱尖等 紅镁青 、化瀝 石氧、 晶鋁鉛 0 化黒 、氧 、 礦、矽 土石化 鋁矽碳 Λ ^ Λ 鋁石石 本紙张尺度適用中國國家標準{ CNS > Α4規格(210'〆297公釐) 66 21 9 at B7 經濟部中央標芈局貝工消費合作社印聚 五、發明説明 ( 3 ) i 上 併 用 0 1 1 附 火 性 基 Μ 粒 徑 在 1C m n 1以 下 〇 粒 徑 超 過 1C mi , 澆注 1 1 耐 火 組 成 物 的 泵 壓 送 性 惡 化 , 再 結 合 損 失 亦 多。耐 火性 讀 1 基 先 i 材 Μ 粒 徑 8- -0 , 01 m π 為 佳 0 閱 讀 1 耐 火 性 基 材 的 混 配 量 是 耐 火 性 基 材 +附火性超徽粉每 背 面 1 I 之 1 100 W t ί 佔 有 70 ~ 9 8 w t % 耐火性基材的混配量以 注 意 1 Ι 75 -95 W t % 為 佳 〇 事 項 1 再 1 \ (B) 耐 火 性 超 微 粉 f 本 ) .袭 附 火 性 超 微 粉 使 用 選 白 氧 化 鋁 、 非 晶 性 氧 化矽、 氧化 頁 Vw·· 1 I 矽 氧 化 鈦 > 富 鋁 紅 柱 石 氧 化 安口 、 氧 化 鉻 、碳化 矽、 1 碳 等 超 微 粉 至 少 一 種 t 必 要 時 可 Μ 二 種 K 上 併用。 1 I 耐 火 性 超 微 粉 的 粒 徑 在 10 U mM下, Ml U DlK下為佳 1 訂 0 粒 徑 在 10 μ m Μ上時, 超微粉在基材粒間的充填性不 1 良 t 而 1 jU m Μ 下 時 9 其 充 填 性 更 好 0 1 耐 火 性 超 微 粉 的 岑曰 ftt 配 量 為 耐 火 性 基 材 +耐火性超微粉 1 1 I 每 100 W t% 佔 2- 30 W t % 0 在 2 W t 9i Μ 下時, 充填 1 1 性 不 良 $ 超 過 30 W t % 時 9 隨 腌 工 水 量 增 加 ,煆燒 後的 > I 收 縮 大 增 0 耐 火 性 超 微 粉 的 混 配 量 以 5- 25 W t %為 佳。 1 1 (C) 鹼 性 乳 酸 鋁 1 1 鹼 性 乳 酸 鋁 的 作 用 為 • • ① 隨 澆 注 耐 火 物 的 膨脹, 吸收 1 I 熱 應 力 > 改 善 耐 熱 震 性 9 ② 與 賦 彤 劑 之 一 的 矽酸納 反應 1 1 1 提 高 賦 形 效 果 〇 附 帶 地 ♦ 胞 工 體 乾 燥 時. » 預期有 水蒸 1 氣 爆 炸 防 止 效 果 〇 1 | m 性 乳 酸 鋁 為 A1 (0Η) 3- X(乳 酸 nH 2 0化學式所示 1 -5 1 1 1 1 本紙張尺度適用中國國家標準(CNS ) A4#見格(210X297公釐) 經濟‘邱中央標準局貝工消費合作社印製 466219 A7 B7 五、發明説明(4 ) 多核錯合物構成的高分子雷解質β鹼性乳酸鋁有多木化 學公司製品,商標_名稱TakiseRamu(踏基西拉姆}有G-17P 、M-160P等種類。 鹺性乳酸鋁可利用特公昭58-5174號所載方法製造, 具體而言,令水溶性鋁鹽與碳酸或碩酸鹽反應所得氣化 鋁水合物,與乳酸,按A12 03 /乳酸的其耳比0.3-2.D 範圍反應而得。 鹼性乳酸鋁的添加量以相對於耐火性基材+耐火性超 撤粉 1 0 0 w t % ,以 0 . 3 - 2 w t % 為宜。在 〇 . 3 w t % 以下時,耐熱震性和熱瞎力吸收效果小,超過2 wt% 時,施工體的強度明顯下降。以0.4-1.5 wt% 為佳。 2/濕式噴敷旃工法 (A) 混練 上述組成的澆注耐火紐成物用水或其他混練液加以混 練,達可澆注程度的作業性,水或其他混練液的添加量 ,雖大受粒度構成或耐火性基材氣巩率的影饗,惟相對 於耐火性基材+耐火性超微粉100 wt% ,約佔5.5-9 wt% (表觀水或其他混練液添加量在5.5 wt% 以 下時,澆注耐火組成物的流動性不足,而超過9 fft% 時,會流落等引起噴敷施工性降低。 (B) 賦形劑的添加 耐火性基材、耐火性超微粉和鹼性乳酸鋁,用水或其 他狺練掖混練而成的混練物,用壓送泵輸送到噴敷噴嘴 ,以噴敷噴嘴和壓縮空氣同時添加陚形劑,進行噴敷施工。 -6 - 本紙張尺度適用中國固家標準(CNS ) A4規格(2丨Ο X 297公釐) (請先閱讀背面之注意事項再填寫本頁) I娘. 4 6 6 2 1 9 A7 B7 經濟部中央標準局貝工消費合作社印裝 五、發明説明 ( 5 ) 1 賦 形 劑 宜 用 鹼 金 屬 矽 酸 鹽 或 鹼 金 屬 鋁 酸 鹽 9 而 Μ 水 溶 1 1 液 狀 態 添 加 為 佳 1 賦 形 劑 的 作 用 是 在 噴 敷 施 工 瞬 間 7 上 1 | 述 澆 注 耐 火 組 成 物 混 練 物 流 動 性 消 失 時 , 可 保 持 其 形 體。 诗 1 I ⑴ 鹼 金 屬 矽 酸 鹽 it 閲 1 I 讀 ί ί 鹼 金 屬 矽 酸 m XaL Μ si 0 1 / Ε 2 〇 (其 中 R z 0為 鹼 金 屬 氧 化 背 1 I 之 1 物 )奠耳t b在2 ♦ 0 ~ ί .3為 佳 〇 敵 金 屬 矽 酸 ΚΔύ 餓 水 溶 液 市 售 有 注 意 1 1 矽 酸 納 水 溶 液 或 矽 酸 鉀 水 溶 液 〇 尤 其 是 矽 酸 納 水 溶 液 有 事 項 1 I 真 1 I J IS 規 格 (J IS 1 號, J IS 2 號, J IS 3 號等) * 可 原 狀 寫 1 Ά 1 1 或 再 經 稀 釋 使 用 〇 本 頁 (2) 鹼 金 屬 鋁 酸 鹽 1 1 鹼 金 屬 鋁 酸 鹽 以 R 0/ A1 2 0 3 (其 中 R 2 0為 鹼 金 屬 氧 1 I 化 物 )莫耳比1 -3 為佳 )其中 NajjO/ A ] 0 3 冥 耳 比 為 1-3 訂 左 右 的 鋁 酸 鈉 > 水 溶 液 或 粉 末 狀 銷 售 〇 在 曰 本 因 錨 酸 1 鉀 價 格 高 t 尚 未 充 分 普 及 惟 亦 可 使 用 〇 I (3) 添 加 后. I 1 I 赋 肜 劑 添 加 量 受 到 施 X 溫 度 » 鹼 性 % 酸 鋁 的 添 加 量 等 1 1 的 影 m 〇 一 般 而 施 工 溫 度 愈 高 1 抗 水 蒸 氣 的 硬 化 愈 .….> I 快 P 賦 形 劑 含 量 要 愈 多 0 而 Jt*. 敏 性 % 酸 鋁 多 時 f 流 動 性 強 1 1 • 為 防 止 材 料 流 落 9 必 須 增 加 賦 形 劑 的 添 加 量 0 1 1 為 顧 及 上 逑 各 點 > 賦 形 劑 的 添 加 蠆 (固體成份基準) f 1 I kk 耐 火 性 基 材 +耐火性超微粉100 iff t % 為準, 按表觀 1 1 0 . 2- 1 w t % 為 宜 〇 在 0 , 2 t 9i ' K 下 時 * 賦 形 劑 效 果 1 小 超 過 1 W t% 時 9 鹼 金 靨 成 份 多 > 耐 蝕 性 降 低 0 賦 ί I 形 劑 添 加 畺 Μ 0 . 3- 0 . 8 W t% 為 佳 0 1 -7 1 1 1 1 本紙張尺度適用中國國家標準(CNS > A4現格(2丨OX:297公釐) 4 6 6 21 c A7 B7 五、發明説明(“) 賦形劑以水溶液狀使用時,其濃度以25-50 wt% 左 右為適當。為增加水份以防施工體組織的密實性降低, 水溶液添加量宜使用固體成份添加量為0. 2-1 wt% , 而以約2 wt%以下為佳。賦形劑水溶液以混練物輸送 用壓送泵同步作動的定量泵供應為佳。 窨旆例 本發明以下列實施例和比較例具體說明,惟本發明不 限於此。 宮掄俐1 為評估鹼性乳酸鋁的熱應力吸收性,於下表1所示基 本配方的澆注耐火組成物,添加鹼性乳酸鋁(ai2o3 34.5±1.5wt% 和乳酸 48±2.0wt% 所組成,PH5 的 淡黃色粉末,多木化學公司製品,商品名M-160P),以 耐火性基材+耐火性超撤粉100 wt% 為固體成份基準, 分別為 0 wt% 、 0.4 wt% 、 0.8 wt% 和 1.2 wt% 的比率(表觀)。 (讀先閱讀背面之注意事項再填寫本頁) ,-聲 訂 — 經濟部中央標隼局員工消費合作社印袋 本紙張尺度適用中國國家標準(CNS ) Ad現格(2] Ο X 297公釐) 466五、發明説明( 表1 A7 B7 成分 配合童 2 2.5 w t % 2 2.5 w t % 2 6.0 w t % 1 0 . 0 w t % 17.0 wt % 2.0 wt 96 (讀克閱讀背面之注意事項再填寫本頁) 電惚氣化錦(6-3fflm) 電熔氣化鋁(3-lmm) 電熔氧化鋁(Irani以下) 氧化鎂微粉(Ο . 3mm以下) 氣化鋁超撤粉(10 A in以下) 非晶性氧化矽超微粉(1 Α «η以下) 註:⑴括弧内表示粒徑。 所得混合物用6.5 wt%.(表觀)水混練,澆注入 4craX4cmXl0cHi的模框内。於氣溫20°C,濕度80%室内 保養24小時後,材料在流入楔框内的原狀,於11(TC乾 燥、硬化2 4小時。脫模所得試Η再在1 1 〇 °C乾燥Μ小時 ,以供測定熱應力。又,不添加鹼性乳酸鋁時,為呈現 流動性,添加六偏磷酸鈉0.08 wt% (表觀)。 經濟部中央標準局員工消費合作社印製 熱應力的測定使用第1圖所示裝置。測定方法是用壓 桿輕按試Ml的上下端,利用雷射測量加熱中試H1上 下端的位置變化,對試片1加壓,利用試H1的熱膨賬 自動補正變化程度,使試片1上下端位置經常一定,此 時負荷視為熱應力,以負載傳感器2測定。各試片1的 熱應力測定結果如第2圖所示。 不添加鹼性乳酸鋁的試片(No. 1),約450 °C起急速發 生大熱應力。相對地,添加鹼性乳酸鋁G.4 wt% 的試 -9- 本紙張尺度適用中國國家標準(CNS ) A4規格(2丨OX29"?公釐) 經濟部中央標準局員工消費合作社印震 4 6 6 ϋ !: Α7 — Β7 五、發明説明(8 ) 片(No.2),延至60(TC才開始發生熱應力,熱應力高峰 大 小 也 只 有 Ν 〇 · 1 約 — 半 的 程 度 0 再 者 , 隨 性 乳 酸 鋁 添 加 量 増 加 到 0 _ 8 W X% (No . 3) 和 1 . 2 W t% (H 0 . 4) 9 熱 應 力 的 發 生 減 少 9 僅 此 即 可 知 熱 愿 h 的 吸 收 性 增 加 〇 其 次 9 上 述 混 練 物 踅 際 上 以 濕 式 噴 敷 施 工 體 * 可 檢 定 其 體 積 比 重 強 度 和 耐 熱 震 性 〇 濕 式 噴 敷 施 工 是 將 混 練 物 用 壓 送 泵 輸 送 到 噴 敷 噴 嘴 t Μ 噴 敷 噴 嘴 連 同 壓 縮 空 氣 添 加 0 . 8 t % 矽 酸 納 水 溶 液 (J IS 1 號組成, 濃度44 W t % )做為賦形劑, 進行嗔敷< >所得腌工體(Ν 〇 .5 -8) 中 的 鹼 性 乳 酸 鋁 、 偏 磷 酸 鈉 混 練 水 量 和 矽 酸 鈉 水 溶 液 之 添 加 量 如 表 2 所 示 0 表 2 試 Η No 蜂 姐 成 ( w t % ) 5 6 7 8 鹼 性 乳 酸 鋁 0 . 4 0 .8 1 . 2 - 偏 磷 酸 納 - - _ 0 .08 混 練 水 量 6 . 5 6 .5 6 . 5 6 .0 矽 酸 納 水 溶 液 0 . 8 0 .8 0 . 8 0 .8 由 所 得 m 工 體 切 成 特 定 大 小 » 加 K 乾 燥 而 得 試 片 9 測 量 體 積 比 重 和 鹿 曲 強 度 9 進 行 熱 震 試 驗 〇(. 關 於 熱 震 試 驗 > 先 K 4 c in X 4 cm X 16 cm 尺 寸 , 在 13 0 0 ¾ X 3 小 時 預 煆 燒 y 對 此 試 片 測 定 彈 性 係 數 (A) 0 其 次 > 在 1300 加 熱 20 "1 0 一 (請先閲讀背面之注意事項再填寫本頁) 本紙張尺度適用中國國家標準(CNS ) A4規格(210 X 297公釐) 4 66 21 9 A7 __B7_ 五、發明説明(9 ) 分鐘後,強制風冷,K此方法重複三次熱衝擊,再度測 定彈性係數(B) 。K上述彈性係數比(B/A)為彈性係數 降低率,由此評估耐熱震性,彈性係數降低率值愈大, 判定附熱震性愈佳。試驗結果如表3所示。 表3 試片No . 特性 - - 5 6 7 8 體積比重 ---- 110ΠΧ24 小時乾燥後 3.05 3.06 3.06 3.06 130〇υ><3 小時煆燒後 2.93 2.94 2.92 2.94 屈曲強度(HPa) 1101^X24 小時烺燥後 4.0 4.5 5.3 3.1 (讀先聞讀背面之注意事碩再填寫本頁) '裝. 訂 經濟部中央標準局員工消費合作社印製 1 300 t: X 3 小 時 煆 燒 後 2 1.0 21.8 20.5 22.1 彈 性 係 數 (X 10 : 3 MPa) 1 300 υ X 3 小 時 煆 燒 後 (A) 94.7 89.2 83.4 94.8 熱 震 試 驗 後 (B) 23.9 23.7 23 . 4 13.4 彈 性 係 數 降 低 率 (B/A) X 100 25.2 26.6 28.0 14.1 由 表 3 結果可知not:時的乾燥強度, 因添加鹼性乳 酸 鋁 而 加 大 〇 另 方 面 1300C煆燒強度隨鹼性乳酸鋁 的 添 加 量 增 加 而 稍 有 降 低 傾向。 附熱霞 性因鹼性乳酸鋁 添 加 畺 增 加 而 改 進 S 可 視 為前述 熱應力 吸收性良好所 致。 富_例2 為 檢 定 鹼 性 乳 酸 鋁 與 賦 形劑反 應的賦 形效果,於上 述 本紙張尺度適用中國國家標準(CNS ) A4规格(210X297公釐) 6 8 21 9 A7 B7 經濟部中央標準局員工消費合作社印裝 五、發明説明 ( 10 ) 1 表 1 所 示 基 本 組 成 之 澆 注 附 火 組 成 物 t 添 加 齡 性 乳 酸 鋁 1 1 1 t % (表觀), 用 6 ♦ 5 W t % (表觀: 水 混 練 0 所 得 混 1 | 錬 物 放 入 約 500 克 容 器 * 添 加 賦 形 劑 矽 酸 鈉 水 溶 液 (J IS 讀 1 I 1 號 組 成 9 濃 度 ί W t % )或鋁酸鈉’溶液 1* > |Μ| 度 38¾, 先 閱 讀 1 1 Hi 1 2 0/A ] 2 0 3莫耳t b 1 .7 ), 再度用湯匙迅速攪拌, 檢 背 面 I 之 1 定 賦 形 劑 添 加 量 與 賦 形 開 始 時 間 (即混練物流動性消失 注 意 1 I 所 需 時 間 )之關係 。不添加鹼性乳酸鋁的混練物, 為圼 事 項 1 再 ] ..Λ 現 流 fgl,. 動 性 * 添 加 偏 nrt] 磷 酸 納 0 . 08 t% 〇 試 驗 结 果 如 第 4 % 本 ') 袭 3 圖 所 示 0 關 於 賦 形 開 姶 時 間 與 實 際 濕 式 嗔 敷 胞 工 可 能 頁 1 1 性 的 關 係 * 由 經 驗 可 知 在 賦 形 開 始 時 間 起 25秒 左 右 即 可 1 1 施 工 〇 1 I 不 添 加 鹼 性 乳 酸 鋁 時 , 鋁 酸 納 的 賦 形 開 始 時 間 較 矽 酸 1 i 訂 鈉 為 短 鋁 酸 納 的 賦 形 效 果 亦 較 大 〇 然 而 t 鹼 性 % 酸 鋁 1 添 加 1 重 量 % 時 » 添 加 鋁 酸 m 會 使 賦 形 開 始 時 間 加 長 9 1 I 相 對 地 r 添 加 矽 酸 鈉 可 大 為 縮 短 0 由 此 可 知 驗 性 乳 酸 鋁 1 有 促 進 矽 酸 鈉 賦 形 效 果 的 作 用 0 1 ϋ. 明 效 果 ,χ i 使 用 在 耐 火 性 基 材 添 加 耐 火 性 超 微 粉 和 驗 性 乳 酸 鋁 所 1 1 構 成 不 含 水 泥 之 澆 注 耐 火 組 成 物 t 水 或 其 他 温 練 液 混 1 1 練 調 節 澆 注 軟 度 作 業 性 9 利 用 壓 送 泵 輸 送 至 嗔 敷 嗔 嘴 r 1 | 藉 該 嗔 敷 噴 嘴 隨 壓 縮 空 氣 同 時 添 加 少 量 溶 解 賦 形 劑 之 水 1 1 溶 液 > 實 濕 式 嗔 敷 > 所 得 施 X 體 不 但 具. 有 較 習 知 格 外 1 Lt 1 優 良 的 品 質 和 附 鈾 性 9 且 可 強 化 施 工 後 的 保 胗 性 9 而 加 熱 時 的 熱 應 力 吸 收 特 性 和 耐 熱 震 性 均 優 0 1 1 -12- 1 ί 1 1 本紙張尺度適用中國國家標举(CNS ) A4規格(2j〇X:297公釐) 4 6 6 21 A7 _ B7 五、發明説明(11 ) 圇忒篛II說明 第1圖為熱應力测定裝置之簡圖; 第2圔為鹼性乳酸鋁添加量變化時,熱應力與加熱溫 度之關係曲線圖; 第3圖為矽酸鈉水溶液添加量與賦胗開始時間之關係 曲線圖; 第4圔為鋁酸鈉水溶液添加量與賦形開始時間之關係 曲 線 圖 » 符 端 說 明 1 試 片 2負 載 傳感器 3壓 桿 4 發 熱體 5爐 6馬 達 7 雷 射 δ氮 氣 罐: 9控 制器 10 電 腦 經濟部中央標準局員工消费合作社印製 本紙張尺度適用中國國家標率(CNS } A4規格(210X297公釐)Oxygen-bonded and aluminized oxygen-melting electric selection material base) properties (C fire and material resistance, base powder with slight flame and super fire resistance) Benhu U wax cone Μ -ί I, powder sintered Oxygen, oxygen, stone, and pillar magnesium must be reddened, aluminum oxide species are rich, one, red sapphire crystals such as stone shale crystals to the column tip, bleaching oxygen, crystalline aluminide, hydrazone, oxygen, ore, silicon Geochemical alumino-silicon carbon Λ ^ Λ bauxite This paper is in accordance with the Chinese National Standard {CNS > Α4 size (210'〆297 mm) 66 21 9 at B7 2. Description of the invention (3) i The combination of 0 1 1 with a flammable group M has a particle size of 1C mn 1 or less and a particle size of more than 1 C mi, the pumpability of the cast 1 1 refractory composition is deteriorated, and the recombination loss is also large. Fire resistance reading 1 base material i particle size 8- -0, 01 m π is better 0 reading 1 The blending amount of the fire resistance substrate is fire resistance substrate + fire-resistant super emblem powder on each back 1 I 1 100 W t occupies 70 ~ 9 8 wt% of the blending amount of the refractory base material. Note that 1 Ι 75 -95 W t% is better. ○ Item 1 re 1 \ (B) refractory ultrafine powder f). Attached ultrafine powder uses at least one type of ultrafine powder such as white alumina, amorphous silicon oxide, oxide page Vw ·· 1 I silicon titania > mullite oxidation port, chromium oxide, silicon carbide, 1 carbon, etc. t If necessary, M and K can be used together. 1 I The particle size of refractory ultrafine powder is better at 10 U mM and Ml U DlK. 1 When the particle size is above 10 μm Μ, the filling property of ultrafine powder between substrate particles is not good. Under jU m Μ 9 Its filling is better. 0 1 The refractory ultrafine powder of Cen Yue ftt is formulated with refractory base material + refractory ultrafine powder 1 1 I per 100 W t% accounts for 2- 30 W t% 0 in At 2 W t 9i Μ, filling 11 1 Poor sex $ When more than 30 W t% 9 With the increase in the amount of pickling water, the > I shrinkage after burning is increased 0 The refractory ultrafine powder is mixed in an amount of 5- 25 W t% is preferred. 1 1 (C) Basic aluminum lactate 1 1 The role of basic aluminum lactate is • • ① With the expansion of the cast refractory, absorb 1 I thermal stress > improve thermal shock resistance 9 ② silicic acid with one of the additives Nano-reaction 1 1 1 Increasing the effect of formation 〇 Incidentally ♦ When the cell is dry. »Expected to prevent water vapor 1 gas explosion prevention effect 〇 1 | m Aluminium lactate is A1 (0Η) 3- X (lactic acid nH 2 0 Chemical formula Shown 1 -5 1 1 1 1 This paper size is applicable to Chinese National Standard (CNS) A4 # See grid (210X297 mm) Printed by the economy 'Qiu Central Standards Bureau Shellfish Consumer Cooperative 466219 A7 B7 V. Description of the invention (4) The polymer degraded β-basic aluminum lactate composed of multinuclear complexes is a product of Taki Chemical Co., Ltd., and the trademark _ name TakiseRamu (Takisiram) includes G-17P, M-160P and other types. Manufactured by the method described in Japanese Patent Publication No. 58-5174. Specifically, a gasified aluminum hydrate obtained by reacting a water-soluble aluminum salt with a carbonic acid or a ferric salt, and lactic acid, according to A12. 03 / lactic acid is obtained by reacting in the range of 0.3-2.D. The addition amount of basic aluminum lactate is 100 wt% relative to the refractory base material + refractory super powder, and 0.3-2 wt. When the weight is less than 0.3 wt%, the thermal shock resistance and thermal blindness absorption effect are small. When it exceeds 2 wt%, the strength of the construction body is significantly reduced. 0.4-1.5 wt% is preferred. 2 / wet Spraying method (A) The cast refractory product with the above composition is kneaded with water or other kneading liquid to achieve a castable workability. The addition amount of water or other kneading liquid is greatly affected by the particle size or the fire resistance. The influence of the material gas sclerosis rate, but it is about 5.5-9 wt% compared to 100 wt% of the refractory base material + refractory ultrafine powder. (When the amount of apparent water or other mixing solution is less than 5.5 wt%, cast refractory The composition has insufficient fluidity, and if it exceeds 9 fft%, the spraying workability will be reduced due to sags, etc. (B) Addition of excipients to fire-resistant substrates, fire-resistant ultrafine powders and basic aluminum lactate, water or other Knead the kneaded material, which is transported to the spray nozzle by a pressure pump to spray the nozzle and compressed air. Add tincture when spraying. -6-This paper size is in accordance with China Solid Standard (CNS) A4 (2 丨 〇 X 297 mm) (Please read the precautions on the back before filling this page) I Nim. 4 6 6 2 1 9 A7 B7 Printed by the Shellfish Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs 5. Description of the invention (5) 1 The excipient should be alkali metal silicate or alkali metal aluminate 9 and M water soluble 1 It is better to add 1 liquid state. 1 The excipient is used to maintain the shape of the castable refractory composition when the fluidity of the castable mixture disappears at the instant of spraying. Poetry 1 I ⑴ Alkali metal silicate it Read 1 I Read ί Alkali metal silicate m XaL Μ si 0 1 / Ε 2 〇 (where R z 0 is an alkali metal oxidation back 1 1 of 1) 2 ♦ 0 ~ ί. 3 is better. Dimetallic silicic acid κΔύ Hungry aqueous solution is commercially available. 1 1 Sodium silicate aqueous solution or potassium silicate aqueous solution. Especially for sodium silicate aqueous solution. 1 I true 1 IJ IS specifications (J IS # 1, J IS # 2, J IS # 3, etc.) * Can be written as 1 Ά 1 1 or used after dilution. Page 2 (2) Alkali metal aluminate 1 1 Alkali metal aluminate with R 0 / A1 2 0 3 (where R 2 0 is an alkali metal oxygen 1 I compound) Molar ratio 1 -3 is preferred) where NajjO / A] 0 3 Mu ear ratio is about 1-3 sodium aluminate > aqueous solution or Sales in powder form. In Japan, the price of 1 potassium anchor acid is high. 〇I (3) can also be used after addition. I 1 I The amount of excipients is affected by the temperature of X application »Alkaline% Aluminium acid, etc. 1 1 shadow m 〇 In general, the higher the construction temperature 1 Water resistance The harder the steam hardens .... > I The faster the content of the excipient, the more 0 and the Jt *. Sensitivity% The more the aluminum acid is, the more fluid it is. 1 1 • To prevent the material from flowing, 9 the addition of excipients must be added. The amount of 0 1 1 is to take into account the points on the top of the vehicle> (addition of solid ingredients) f 1 I kk refractory base + refractory ultrafine powder 100 iff t% shall prevail, according to the apparent 1 1 0. 2- 1 wt% is appropriate. 0, 2 t 9i 'K * Excipient effect 1 When it is less than 1 W t% 9 Alkali gold 靥 has more ingredients > Corrosion resistance is reduced 0 ί I I added 畺Μ 0. 3- 0. 8 W t% is better 0 1 -7 1 1 1 1 This paper size is applicable to the Chinese national standard (CNS > A4 now standard (2 丨 OX: 297 mm) 4 6 6 21 c A7 B7 V. Explanation of the invention (") When the excipient is used in the form of an aqueous solution, its concentration should be about 25-50 wt%. In order to increase the water content in order to prevent the compactness of the structure of the construction body from decreasing, the amount of the aqueous solution should preferably be 0. 2-1 wt%, and preferably less than about 2 wt%. The excipient aqueous solution is preferably supplied by a metering pump which is synchronized with a pressure pump for conveying the kneaded material. Examples The present invention will be specifically described by the following examples and comparative examples, but the present invention is not limited thereto. Gong Yili1 To evaluate the thermal stress absorption of basic aluminum lactate, the basic formula shown in Table 1 below was cast with a refractory composition, and basic aluminum lactate (ai2o3 34.5 ± 1.5wt% and lactic acid 48 ± 2.0wt%) was added. Composition, light yellow powder of PH5, product of Taki Chemical Co., Ltd., trade name M-160P), based on refractory base material + refractory ultra-removing powder 100 wt% as solid content basis, respectively 0 wt%, 0.4 wt%, Ratio of 0.8 wt% and 1.2 wt% (apparent). (Read the precautions on the back before you fill in this page), -Sound Ordering—Printed bags of employee consumer cooperatives of the Central Bureau of Standards of the Ministry of Economic Affairs This paper size applies Chinese National Standard (CNS) Ad Appearance (2) 〇 X 297 mm ) 466 V. Description of the invention (Table 1 A7 B7 ingredients combined with Tong 2 2.5 wt% 2 2.5 wt% 2 6.0 wt% 1 0. 0 wt% 17.0 wt% 2.0 wt 96 ) Electron gasification bromide (6-3fflm) Fused alumina (3-lmm) Fused alumina (Irani or less) Magnesium oxide fine powder (O. 3mm or less) Vaporized aluminum ultra-removed powder (10 A in or less) Amorphous silica ultrafine powder (1 Α «n or less) Note: The particle size is shown in parentheses. The resulting mixture is kneaded with 6.5% by weight of (apparent) water and poured into a 4craX4cmXl0cHi mold frame. At an air temperature of 20 ° C After 24 hours of indoor maintenance at 80% humidity, the material flows into the wedge frame as it is, and is dried and hardened at 11 ° C for 24 hours. The test sample obtained after demolding is then dried at 110 ° C for 24 hours for measurement heat. In addition, when alkaline aluminum lactate is not added, 0.08 wt% (apparent The measurement of thermal stress printed by the Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs uses the device shown in Figure 1. The measurement method is to press the upper and lower ends of test M1 with a pressure lever, and use laser to measure the position changes of the upper and lower ends of heating test H1. The test piece 1 is pressurized, and the degree of change is automatically corrected by using the thermal expansion account of test H1, so that the upper and lower positions of the test piece 1 are always constant. At this time, the load is regarded as a thermal stress and measured by the load sensor 2. The thermal stress of each test piece 1 The measurement results are shown in Figure 2. In the test piece (No. 1) without the addition of basic aluminum lactate, large thermal stress occurred rapidly at about 450 ° C. In contrast, the test with the addition of basic aluminum lactate G. 4 wt% -9- This paper size applies to China National Standard (CNS) A4 specification (2 丨 OX29 "? mm) Central Consumers Bureau of Ministry of Economic Affairs, Consumer Consumption Cooperatives, Yin Zhen 4 6 6 ϋ!: Α7 — Β7 V. Description of Invention (8) (No. 2), extended to 60 (TC only began to generate thermal stress, and the thermal stress peak size is only Ν 〇 · 1 about-half the degree of 0. Moreover, the amount of random aluminum lactate added to 0 _ 8 WX% ( No. 3) and 1.2 W t% (H 0. 4) 9 Thermal stress The occurrence of force decreases 9 Only by this, it can be seen that the absorptivity of the hot air h is increased. Secondly, the above-mentioned kneaded material is wet sprayed on the construction body. * Its specific gravity and thermal shock resistance can be tested. Wet sprayed construction is The kneaded material was transported to the spray nozzle t Μ by a pressure pump. The spray nozzle and compressed air were added with 0.8 t% aqueous sodium silicate solution (composed of J IS No. 1 with a concentration of 44 W t%) as an excipient. The amount of alkaline aluminum lactate, sodium metaphosphate mixed water and sodium silicate solution in the obtained pickled body (N 〇.5 -8) is shown in Table 2. 0 Table 2 Test No bee Sister (wt%) 5 6 7 8 Basic aluminum lactate 0.4 0. 8 1. 2-Sodium metaphosphate--_ 0 .08 Mixing water volume 6. 5 6. 5 6. 5 6. 0 Sodium silicate Aqueous solution 0.8 0. 8 0. 8 0. 8 Cut from the obtained m-shaped body Specific size »Add K to dry to obtain a test piece 9 Measure the bulk specific gravity and deer bend strength 9 Perform a thermal shock test 〇. About the thermal shock test > First K 4 c in X 4 cm X 16 cm size, at 13 0 0 ¾ X 3 hours pre-baking y Determine the elastic modulus (A) of this test piece 0 Next> heating at 1300 20 " 1 0 one (Please read the precautions on the back before filling this page) This paper size applies Chinese national standards (CNS) A4 specification (210 X 297 mm) 4 66 21 9 A7 __B7_ V. Description of the invention (9) Minutes, forced air cooling, K This method is repeated three times with thermal shock, and the coefficient of elasticity (B) is measured again. K The above-mentioned elastic coefficient ratio (B / A) is the reduction coefficient of the elastic coefficient, and thus the thermal shock resistance is evaluated. The larger the reduction coefficient of the elastic coefficient value, the better the thermal shock resistance is determined. The test results are shown in Table 3. Table 3 Test piece No. Characteristics--5 6 7 8 Volume specific gravity ---- 110Π × 24 hours after drying 3.05 3.06 3.06 3.06 130〇υ > < 3 hours after sintering 2.93 2.94 2.92 2.94 Buckling strength (HPa) 1101 ^ X24 After 4 hours of drying 4.0 4.5 5.3 3.1 (Read the notes on the back and read the master page before filling out this page) 'Packing. Order printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economy 1 300 t: X 3 hours after burning 2 1.0 21.8 20.5 22.1 Coefficient of elasticity (X 10: 3 MPa) 1 300 υ X 3 hours after sintering (A) 94.7 89.2 83.4 94.8 After thermal shock test (B) 23.9 23.7 23. 4 13.4 Rate of reduction of elasticity (B / A) X 100 25.2 26.6 28.0 14.1 From the results in Table 3, it can be seen that the dry strength at the time of not: is increased by the addition of basic aluminum lactate. On the other hand, the 1300C sintering strength tends to decrease slightly as the amount of basic aluminum lactate increases. It is considered that the improvement of the thermal properties of S with the increase of alkaline aluminum lactate and the increase of S can be considered as the aforementioned good thermal stress absorption.富 _ 例 2 To test the effect of the formation of alkaline aluminum lactate and excipients, and apply the Chinese National Standard (CNS) A4 (210X297 mm) to the above paper size 6 8 21 9 A7 B7 Central Bureau of Standards, Ministry of Economic Affairs Printing by employee consumer cooperatives V. Description of invention (10) 1 The basic composition shown in Table 1 is cast with fire composition t Adding aging aluminum lactate 1 1 1 t% (apparent), using 6 ♦ 5 W t% (table View: Water mixing 0 The mixed 1 | mash is put into a container of about 500 grams * Add excipient sodium silicate aqueous solution (J IS read 1 I No. 1 composition 9 concentration ί W t%) or sodium aluminate 'solution 1 * > | M | degree 38¾, read 1 1 Hi 1 2 0 / A] 2 0 3 Mohr tb 1 .7), and then stir quickly with a spoon, check the amount of excipient I and the shape The relationship between the start time (that is, the time required for the disappearance of the kneading material to pay attention to 1 I). Kneaded product without adding alkaline aluminum lactate, for item 1 again] .. Λ current flow fgl, .. Mobility * added partial nrt] sodium phosphate 0. 08 t% 〇 test results are as 4% of this') attack 3 As shown in the figure, 0 The relationship between the opening and closing time of the forming and the actual wet application is possible. 1 1 It is known from experience that about 25 seconds from the beginning of the forming process. 1 1 Construction 〇1 I No alkaline In the case of aluminum lactate, the forming time of sodium aluminate is longer than that of silicic acid. The effect of sodium sodium as a short sodium aluminate is greater. However, t basic% aluminum acid 1 when adding 1% by weight »adding aluminate m It will make the forming start time longer 9 1 I Relatively, the addition of sodium silicate can be greatly shortened 0 It can be seen that the experimental aluminum lactate 1 can promote the shaping effect of sodium silicate 0 1 明. Ming effect, χ i use In refractory substrate Add refractory ultrafine powder and aluminum lactate test 1 1 constitute cement-free pouring refractory composition t mixed with water or other tempered liquid 1 1 practice to adjust the softness of pouring 9 workability by pressure pump r 1 | With this application nozzle, a small amount of water 1 1 solution of dissolved excipients is added with compressed air at the same time. The solution of wet application is obtained. The X body is not only good. It has a better quality than conventional 1 Lt 1 and excellent quality. It has 9 uranium properties and can enhance the durability after construction. 9 The thermal stress absorption characteristics and thermal shock resistance during heating are excellent. 0 1 1 -12- 1 ί 1 1 This paper standard applies to China National Standards (CNS) A4 specifications (2j × X: 297 mm) 4 6 6 21 A7 _ B7 V. Description of the invention (11) 说明 II description The first picture is a simplified diagram of a thermal stress measurement device; the second picture is alkaline aluminum lactate The relationship between thermal stress and heating temperature when the addition amount changes; Figure 3 shows the amount of sodium silicate solution and the胗 The relationship curve of the starting time; The fourth curve is the relationship between the amount of sodium aluminate solution added and the start time of the shaping »Notes on the end 1 Test piece 2 Load sensor 3 Pressure bar 4 Heating element 5 Furnace 6 Motor 7 Laser δ Nitrogen tank: 9 controllers 10 Printed by the Consumers' Cooperative of the Central Standards Bureau of the Ministry of Computer Economics The paper size is applicable to China's national standard (CNS) A4 specification (210X297 mm)

Claims (1)

9 46621 SO. ίο. 4 範圍 i&JL 第8 7 1 0 01 8 7號「澆注耐火組成物及其濕式噴敷施工法」 專利案 (90年10月4日修正) 六、申請專利範圍: 1 . 一種澆注耐火組成物,爲不含水泥之澆注耐火組成物 ,其特徵爲,相對於調節粒度至粒徑丨Ornm以下的耐火 性基材70 - 98 w t %,和粒徑1 0 // m以下的耐火性超微 粉2 - 3 0 w t % ,合計1 0 0 _ w t % ,表觀添加鹼性乳酸鋁 0 _ 3 - 2 w t % 者。 2 . —種濕式噴敷施工方法,係將如申請專利範圍第1項 之澆注耐火組成物,用水或其他混練液加以混練,調 節成具有澆注軟度作業性,用壓送泵輸送至噴敷噴嘴 ,藉該噴敷噴嘴,於壓縮空氣同時,相對於該耐火性 基材和該耐火性超微粉合計100 wt%,以固體成份基 準添加0 . 2 - 1 w ΐ % (表觀)賦形劑水溶液,進行噴敷施 工者。 3 .如申請專利範圍第2項之濕式噴敷施工方法,其中該 賦形劑爲鹼金屬矽酸鹽或鹼金屬鋁酸鹽者。 4 .如申請專利範圍第3項之濕式噴敷施工方法,其中該 鹼金屬矽酸鹽中的Si02/R20(其中R2〇爲鹼金屬氧化物 )莫耳比爲2.0-3.3 ,而該鹼金屬鋁酸鹽中的R2〇/Al2 〇3(其中R2〇爲鹼金屬氧化物)莫耳比爲1-3者。9 46621 SO. Ίο. 4 Scope i & JL No. 8 7 1 0 01 8 7 "Pouring Refractory Composition and Its Wet Spray Construction Method" Patent Case (Amended on October 4, 1990) 6. Scope of Patent Application : 1. A cast refractory composition, which is a cement-free cast refractory composition, which is characterized in that it is 70-98 wt% with respect to a refractory substrate whose particle size is adjusted to a particle size below Ornm, and the particle size is 1 0 / / m refractory ultrafine powder 2-30 wt%, a total of 100 _ wt%, the apparent addition of alkaline aluminum lactate 0 _ 3-2 wt%. 2. — A wet spraying construction method, which involves pouring the refractory composition such as item 1 of the patent application scope, mixing it with water or other mixing solution, adjusting it to have pouring softness, and conveying it to the spraying station with a pressure pump. Applying the spray nozzle, with the compressed air, at the same time as the refractory base material and the refractory ultrafine powder total 100 wt%, 0.2-1 w ΐ% (apparent) Aqueous solution for sprayers. 3. The wet spray construction method according to item 2 of the patent application scope, wherein the excipient is an alkali metal silicate or an alkali metal aluminate. 4. The wet spraying construction method according to item 3 of the scope of patent application, wherein the molar ratio of Si02 / R20 (where R20 is an alkali metal oxide) in the alkali metal silicate is 2.0-3.3, and the alkali The molar ratio of R2O / Al2O3 (where R2O is an alkali metal oxide) in the metal aluminate is 1-3.
TW87100187A 1997-01-08 1998-01-08 Casting refractory composition and method of wet spraying thereof TW466219B (en)

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TWI421227B (en) * 2006-07-06 2014-01-01 Vesuvius Crucible Co Cement-free refractory

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US7076527B2 (en) 2001-06-14 2006-07-11 Apple Computer, Inc. Method and apparatus for filtering email
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JP7052664B2 (en) * 2018-09-28 2022-04-12 日本製鉄株式会社 Castable refractory

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI421227B (en) * 2006-07-06 2014-01-01 Vesuvius Crucible Co Cement-free refractory

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