WO2011088742A1 - 高温耐磨修补涂料及其制备方法 - Google Patents
高温耐磨修补涂料及其制备方法 Download PDFInfo
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- WO2011088742A1 WO2011088742A1 PCT/CN2011/000080 CN2011000080W WO2011088742A1 WO 2011088742 A1 WO2011088742 A1 WO 2011088742A1 CN 2011000080 W CN2011000080 W CN 2011000080W WO 2011088742 A1 WO2011088742 A1 WO 2011088742A1
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Definitions
- the invention relates to the technical field of refractory materials, in particular to a 518 high-temperature wear-resistant repairing coating, which is used for repairing fast-repairing materials of damaged parts of wear-resistant bricks and wear-resistant castings in a circulating fluidized bed boiler of a thermal power plant, and provides the same A method of manufacturing a high temperature wear-resistant repair coating. Background technique
- the circulating fluidized bed boiler technology is currently recognized as a clean coal combustion technology. Due to the complicated construction system of the circulating fluidized bed power generation boiler, the large amount of construction, the high flow rate of coal powder in the system piping, and the large flow rate, the refractory material is required to have excellent performance.
- the refractory materials commonly used in circulating fluidized bed boilers are made of high-alumina clinker or white corundum raw materials. The cement content is high, and the wear resistance, erosion resistance, erosion resistance and thermal shock stability cannot meet the cycle.
- the requirements of fluidized bed boiler technology, the use period is short, need to be repaired or replaced frequently, affecting the normal operation of the circulating fluidized bed boiler, and consuming a lot of manpower and financial resources.
- the object of the present invention is to provide a high-temperature wear-resistant repair coating having a high compressive strength and a high flexural strength and a long service life, and a preparation method thereof, in view of the problems existing in the prior art.
- the technical scheme of the invention is as follows: A high-temperature wear-resistant repairing coating, which is composed of a material and a material by weight ratio of 70 to 85: 30 to 15, and is characterized by:
- the weight distribution ratio of each component of the dip is:
- the weight distribution ratio of each component of the material is: ink grade aluminum hydroxide
- the high-temperature wear-resistant repair coating wherein the kyanite fineness is 180 mesh to 220 mesh, the silicon micropowder adopts an Eken silicon micropowder having a silicon content of > 98%, and the magnesium oxide content in the magnesium zirconium sand is 90%.
- the content of titanium dioxide in aluminum titanate is 40%.
- the high temperature wear-resistant repair coating wherein the concentration of phosphoric acid in the component B is 85 %, The fineness of the aluminum chloride is from 008 to 0. 05mm, and the sintering agent is a medium-low temperature sinterable sintering agent.
- the high-temperature wear-resistant repair coating wherein the sintering agent is one or more of silicate, boric acid, fine silica powder, nickel oxide, silica sol and glycerin.
- the preparation method of the high-temperature wear-resistant repairing coating of the invention is according to the weight ratio of the above-mentioned nail material and the material material of the above-mentioned materials, and the components of the nail material are weighed according to the ratio, and then mixed and mixed, and then packaged into bags, and the components of the materials are mixed. According to the ratio, the mixture is uniformly mixed and packed in plastic drums. Before the construction, the materials A and B are mixed and mixed according to the ratio of 70 ⁇ 85: 30 ⁇ 15 by weight.
- the high-temperature wear-resistant repairing paint has high compressive strength and hardness, and the Mohs hardness is higher than 10, and the wear is less than 4 at 1790 °C for 3 hours. / cm 3 , high density, excellent wear resistance, erosion resistance, erosion resistance, thermal shock resistance and high adhesion.
- the circulating fluidized bed boiler operating cycle has been increased from about 3,500 hours to more than 18,000 hours of operation, which overcomes the problem that the boiler lining needs to be repaired and replaced frequently, saving manpower and material resources. , greatly improving production efficiency.
- the high-temperature wear-resistant repairing coating for circulating fluidized bed boiler adopts zirconium corundum fine powder of different particle sizes, kyanite, aluminum titanate, magnesium 4, and the silicon content is 98% or more.
- the repairing coating composed of the components such as the medium temperature sintering agent has the characteristics of high wear resistance, cohesiveness, erosion resistance, erosion resistance and thermal shock stability; the invention selects zirconium corundum of three different particle sizes.
- Fine powder is used as aggregate and powder because its apparent porosity is less than 2%, bulk density is greater than 3. 8g I Cm 3 , Mohs hardness is higher than 10, the bulk density of the product is increased, the porosity is lowered, and the strength is remarkable. Improve; the pure aluminate 4 cement in the formula can enhance the affinity of the synthetic material.
- the effect of adding the ultrafine powder is to increase the filling property and improve the workability, thereby increasing the fluidity. Due to the addition of aluminum titanate, magnesium 4 slag, and zinc-aluminum spinel as raw materials, the coating can increase the high temperature resistance and stability of the coating.
- the bismuth contains fused calcium chromate, which can increase the high temperature resistance and coating of the coating.
- the sintering agent can be used to sinter the product at medium and low temperatures.
- the low-temperature sinterable sintering agent in the sintering agent is one or two of silicate, boric acid, silica micropowder, nickel oxide, silica sol and glycerin.
- the high-temperature wear-resistant repair coating of the invention increases the bending strength OMpa, the compressive strength increases by nearly 20Mpa, the rate of change of the reburning line is reduced, the bulk density is increased, and the wear amount is greatly reduced.
- the preparation method of the high-temperature wear-resistant repairing coating of the present invention is to weigh the components of the dip material according to the weight ratio: zirconia corundum fine powder particle size 1 ⁇ 3 round, zirconium corundum fine powder particle size 0. 4 ⁇ 1 ⁇ , zirconium corundum Fine powder particle size 0. 065 ⁇ 0.
- the repairing part of each damaged part can complete the repairing process of the wear-resistant brick of the circulating fluidized bed boiler and the damaged part of the wear-resistant castable after 48 hours of normal temperature.
- the furnace can be directly started without the oven, saving the cost of the oven and drying. Furnace time.
- Example 1 A high temperature wear-resistant repair coating consisting of 70 parts by weight of dip and 30 parts by weight of ethylene, wherein:
- the weight percentage of each component of the dip is:
- Zirconium corundum fine powder particle size 1 ⁇ 3 countries 15% Zirconium corundum fine powder particle size 0.4 ⁇ 1 surface 35%
- kyanite fineness is 180 mesh ⁇ 220 mesh (sieving); silicon micropowder is made of Eken silicon micropowder with silicon content Si > 98%, magnesia (MgO) content of magnesium zirconium sand is 90%, aluminum titanate The content of titanium dioxide (Ti0 2 ) is 40%.
- the weight percentage of each component of the B material is:
- the concentration of phosphoric acid is 85% phosphoric acid; the fineness of aluminum chloride is 0.008 ⁇ 0.05, and the medium temperature sintering agent is silicate.
- the components of the bake material are uniformly mixed according to the ratio, and then the components of the batch are uniformly mixed according to the ratio, and then packed in a plastic drum.
- the mixture of the A material and the B material is mixed and mixed according to the weight ratio before the construction. Just fine.
- high temperature wear-resistant repair coating consisting of 80 parts by weight of nail material and 20 parts by weight of material B, of which:
- Zinc aluminum spinel 2% Zinc aluminum spinel 2%
- the fineness of kyanite is ISO mesh '-220 mesh (sieving); the silicon micropowder is silicon content Si >
- the magnesium oxide (MgO) content of the magnesium 4 is 90%
- the titanium dioxide (Ti0 2 ) content of the aluminum titanate is 40° /
- the weight percentage of each component of the B material is:
- the concentration of phosphoric acid is 85% phosphoric acid; the fineness of aluminum chloride is 0.008 to 0.05 mm, medium
- the warm sintering agent uses boric acid.
- the components of the bake material are uniformly mixed according to the ratio, and then the components of the batch are uniformly mixed according to the ratio, and then packed in a plastic drum.
- the mixture of the A material and the B material is mixed and mixed according to the weight ratio before the construction. Just fine.
- Example 3 A high temperature wear-resistant repair coating consisting of 85 parts by weight of a nail material and 15 parts by weight of a material, wherein:
- the weight percentage of each component of the dip is:
- kyanite fineness is 180 mesh ⁇ 220 mesh (sieving); silicon micropowder silicon content Si >
- the magnesium oxide (MgO) content of the magnesium zircon sand is 90%
- the titanium oxide (Ti0 2 ) content of the aluminum titanate is 40%.
- the weight percentage of each component of the B material is:
- the concentration of phosphoric acid is 85 % phosphoric acid; the fineness of aluminum chloride is 0. 008 ⁇ 0. 05 let, the medium temperature sintering agent uses nickel oxide.
- the ingredients of the tanning materials are mixed and mixed according to the ratio, and the components of the materials are uniformly mixed according to the ratio, and then packed in plastic drums.
- the mixing of the A and B materials is carried out according to the weight ratio before the construction. Mix it.
- Example 4 A high temperature wear-resistant repair coating consisting of 75 parts by weight of buckwheat and 25 parts by weight of B, wherein:
- the weight percentage of each component of the dip is:
- kyanite fineness is 180 mesh ⁇ 220 mesh (sieving); silicon micropowder uses silicon content Si >
- the weight percentage of each component of the B material is:
- the concentration of phosphoric acid is 85 % phosphoric acid
- the fineness of aluminum chloride is 0.008 - 0. 05 mm
- the medium temperature sintering agent is made of silica fine powder.
- the components of the nail material are uniformly mixed according to the ratio, and then the components of the material are uniformly mixed according to the ratio, and then mixed in a plastic drum.
- the mixture of the A material and the B material is mixed according to the weight ratio before the construction. Mix it.
- Example 5 A high temperature wear-resistant repair coating consisting of 80 parts by weight of a nail material and 20 parts by weight of a material, wherein:
- the weight percentage of each component of the dip is:
- kyanite fineness is 180 mesh - 220 mesh (sieving); silicon micropowder is made of Eken silicon micropowder with silicon content Si > 98%, magnesium oxide (MgO) content of magnesium zirconium sand is 90%, aluminum titanate The content of titanium dioxide (Ti0 2 ) is 40°/. .
- the weight percentage of each component of the B material is:
- the concentration of phosphoric acid is 85% phosphoric acid
- the fineness of aluminum chloride is 0.008 ⁇ 0.05
- the medium temperature sintering agent uses silica sol and glycerin, wherein silica sol and glycerin each account for half of the above weight ratio (4%), namely silicon Sol 2%, glycerin 2%.
- the components of the bake material are uniformly mixed according to the ratio, and then the components of the batch are uniformly mixed according to the ratio, and then packed in a plastic drum.
- the mixture of the A material and the B material is mixed and mixed according to the weight ratio before the construction. Just fine.
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Description
高温耐磨修补涂料及其制备方法 技术领域
本发明涉及耐火材料技术领域,尤其涉及一种 518 高温耐磨修补涂料, 用于火力发电厂循环流化床锅炉中修复各耐磨砖、 耐磨浇注损坏部位的快 速修补料, 同时提供这种高温耐磨修补涂料的制造方法。 背景技术
循环流化床锅炉技术是目前公认的清洁煤燃烧技术, 由于循环流化床 发电锅炉施工体系复杂, 施工量大, ***管道内煤粉流速高, 流量大, 因 此对耐火材料要求性能优异。 但是目前在循环流化床锅炉中通常使用的耐 火材料采用高铝熟料或白刚玉原料, 水泥含量高, 其耐磨性、 抗浸蚀性、 耐沖刷性及热震稳定性都不能满足循环流化床锅炉技术的要求, 使用周期 短, 需要经常修补或更换, 影响循环流化床锅炉的正常运转, 消耗大量人 力和财力。
本发明人先前申请的中国专利 20081 024301 1. 7公开了一种高温耐磨涂 料, 该涂料解决了水泥含量高, 并且耐压强度在高温烘烤后比高铝耐磨烧 注料或白刚玉耐磨烧注料具有明显的提高 , 但抗折强度要比白刚玉耐磨烧 注料低, 所以在修复各耐磨砖、 耐磨浇注损坏部位时使用寿命短, 现有技 术存在缺陷, 有待改进。 发明内容
本发明的目的是, 针对现有技术存在的问题提供了一种耐压强度和抗 折强度高, 使用寿命更长的高温耐磨修补涂料及其制备方法。 确认本
本发明的技术方案如下: 一种高温耐磨修补涂料, 由甲料和乙料按重 量份配比 70 ~ 85 : 30 ~ 15组成, 其特征在于:
所述曱料各组份重量百分配比为:
锆刚玉细粉 粒径 l ~ 3mm
粒径 0. 4 ~ lmm
粒径 0. 065 ~ 0. 088mm
蓝晶石
钛酸铝
硅微粉
镁锆砂
氧化铝微粉
纯铝酸钙水泥
三聚磷酸钠
电熔铬酸钙
锌铝尖晶石
乙料各组份重量百分配比为: 油墨级氢氧化铝
氯化铝
钇 稳定锆
硼砂
烧结剂
所述的高温耐磨修补涂料, 其中, 所述蓝晶石细度为 180 目 ~ 220目, 硅微粉采用硅含量 > 98 %的埃肯硅微粉, 镁锆砂中氧化镁含量为 90%,钛酸 铝中二氧化钛含量为 40%。
所述的高温耐磨修补涂料, 其中, 所述的乙料组份中磷酸的浓度为 85
% , 氯化铝细度为 0. 008 ~ 0. 05mm, 烧结剂采用中低温可烧结的烧结剂。 所述的高温耐磨修补涂料, 其中, 所述烧结剂为硅酸盐、 硼酸、 二氧 化硅微粉、 氧化镍, 硅溶胶和甘油中的一种或二种以上复合。
本发明的高温耐磨修补涂料的制备方法, 按上述甲料和乙料的重量百 分配比, 将甲料各组份按配比秤量后搅拌均勾混合后入袋封装, 将乙料各 組份按配比秤量, 均匀混合反应后用塑料桶桶装, 施工前将 A料与 B料按 重量份配比 70 ~ 85 : 30 ~ 15比例搅拌混合。
本发明有益效果为: 本发明采用上述技术方案后, 使高温耐磨修补涂 料具有很高的耐压强度, 硬度较大, 莫氏硬度高于 10 , 1790 °C烧结 3 小时 磨损量低于 4 / cm3, 致密度高, 具有优异的耐磨性, 抗侵蚀性, 耐沖刷性, 热震稳定性及高粘结性。 在相同条件下, 和目前本领域使用的浇注料比较, 循环流化床锅炉运转周期从约 3500小时提高到累计运行 18000小时以上, 克服了锅炉内衬需要经常修补更换的问题, 节省了解人力物力, 大大提高 了生产效率。 具体实施方式
本发明所提供的用于循环流化床锅炉的高温耐磨修补涂料, 采用三种 不同粒度的锆刚玉细粉, 蓝晶石, 钛酸铝, 镁 4告砂, 硅含量为 98 %以上的 埃肯硅微粉, 纯铝酸鴒水泥, 氧化铝微粉, 电熔铬酸钙, 锌铝尖晶石, 三 聚磷酸钠, 磷酸, 油墨级氢氧化铝, 氯化铝, 妃基稳定锆, 硼砂和中温烧 结剂等组分混合组成的修补涂料, 具有耐磨性高, 粘结性、 抗侵蚀性、 耐 冲刷性及热震稳定性更加优异的特点; 本发明选择三种不同粒度的锆刚玉 细粉作为骨料和粉料, 是因为其显气孔率小于 2% , 体积密度大于 3. 8g I Cm3, 莫氏硬度高于 10 , 使产品的体积密度提高, 显孔率降低, 强度显著 提高; 配方中的纯铝酸 4 水泥能增强合成料的亲和力, 加入超微粉的作用 是增加了填充性, 改善了施工性, 从而使其流动性增大。
由于曱料中增加了钛酸铝、 镁 4告砂、 锌铝尖晶石作为原料, 可以增加 涂料耐高温性, 稳定性, 曱料含有电熔铬酸钙, 可以增加涂料耐高温性和 涂料粘结强度; 乙料中含有钇基稳定锆可以进一步增加涂料耐高温性、 稳 定性, 乙料中加入硼砂和氯化铝后, 增加了涂料耐高温性和涂料粘结强度, 并且在乙料增加烧结剂可使本品在中低温下烧结, 该烧结剂中低温可烧结 的烧结剂, 选用硅酸盐、 硼酸、 二氧化硅微粉、 氧化镍, 硅溶胶和甘油中 的一种或二种以上复合; 本发明高温耐磨修补涂料与目前使用的耐磨材料 以及先前申请的专利 (申请号 200810243011 ) 高温耐磨修补涂料产品的性 能比较: 本发明高温耐磨修补涂料使抗折强度增加 l OMpa , 耐压强度增加近 20Mpa, 使重烧线变化率减小, 体积密度增加, 磨损量大大减小。
本发明高温耐磨修补涂料的制备方法是将曱料各组份按重量百分配比 秤量: 锆刚玉细粉粒径 1 ~ 3圆 、 锆刚玉细粉粒径 0. 4 ~ 1誦 、 锆刚玉细粉 粒径 0. 065 ~ 0. 088mm、 蓝晶石、 锌铝尖晶石、 镁锆砂、 钛酸铝、 硅微粉、 氧化铝微粉、 纯铝酸钙水泥、 三聚磚酸钠、 电熔铬酸钙, 将上述曱料各组 份放入混合搅拌器中混合均匀, 出料、 封装入袋备用; 将乙料各组份按重 量百分配比秤量: 磷酸、 油墨级氢氧化铝、 氯化铝、 钇基稳定锆、 硼砂、 塑料桶桶装备用。 施工时将上述曱料和乙料按照重量配比加入到强制式搅 拌机中进行搅拌,搅拌均匀后采用涂抹法在 30 分钟内将其涂于循环流化床 锅炉中所有耐磨砖、 耐磨浇注料各损坏部位的修复部位, 常温 48小时后, 即可完成循环流化床锅炉耐磨砖、 耐磨浇注料损坏部分修复工程, 无需烘 炉就可直接启炉, 节约了烘炉成本及烘炉时间。
实施例 1 、 高温耐磨修补涂料, 由 70份重量的曱料和 30份重量的乙 料组成, 其中:
曱料各组份的重量百分比为:
锆刚玉细粉 粒径 1 ~ 3國 15 %
锆刚玉细粉 粒径 0.4 ~ 1麵 35%
锆刚玉细粉 粒径 0.065 ~ 0.088mm 17%
监晶石 16%
钛酸铝 3.5%
硅微粉 Si> 98% 3%
氧化铝微粉 4%
镁锆砂 2%
纯铝酸钙水泥 3%
三聚磚酸钠 0.5%
电熔铬酸钙 0.5%
锌铝尖晶石 0.5%
其中: 蓝晶石细度为 180目 ~ 220目(过筛); 硅微粉采用硅含量 Si > 98%的埃肯硅微粉, 镁锆砂中氧化镁(MgO)含量为 90%,钛酸铝中二氧化钛 (Ti02)含量为 40%。
乙料各组份的重量百分比为:
磷酸 75%
油墨级氢氧化铝 15%
氯化铝 3%
钇基稳定锆 3%
硼砂 2%
烧结剂 2 %
其中:磷酸采用浓度为 85%磷酸;氯化铝的细度为 0.008 ~0.05讓 , 中 温烧结剂采用硅酸盐。
制造时, 将曱料各组份按配比均匀混合后袋装, 将乙料各组份按配比 均匀混合反应后用塑料桶桶装, 施工前将 A料与 B料按重量份配比搅拌混 合即可。
实 ^例 2 、 高温耐磨修补涂料, 由 80 份重量的甲料和 20份重量的乙 料组成, 其中:
曱料各组份的重量百分比为
锆刚玉细粉 粒径 1 ~ 3mm 16%
锆刚玉细粉 粒径 0.4 ~ 1mm 26%
4告刚玉细粉 粒径 G.065 ~ 0.088 13%
蓝晶石 9%
钛酸铝 8%
硅微粉 7%
镁锆砂 4%
氧化铝微粉 8%
纯铝酸钙水泥 5.5%
三聚磷酸钠 0.3%
电熔铬酸钙 1.2%
锌铝尖晶石 2%;
其中: 蓝晶石细度为 ISO目 ' - 220目 (过筛); 硅微粉采用硅含量 Si >
98%的埃肯硅微粉, 镁 4告砂中氧化镁(MgO)含量为 90%,钛酸铝中二氧化钛 (Ti02)含量为 40°/
乙料各组份的重量百分比为:
79%
9%
5%
3.7%
0.3% 其中:磷酸采用浓度为 85%磷酸;氯化铝的细度为 0.008 ~ 0.05mm, 中
温烧结剂采用硼酸。
制造时, 将曱料各组份按配比均匀混合后袋装, 将乙料各组份按配比 均匀混合反应后用塑料桶桶装, 施工前将 A料与 B料按重量份配比搅拌混 合即可。
实施例 3、 高温耐磨修补涂料, 由 85 份重量的甲料和 15 份重量的乙 料组成, 其中:
曱料各组份的重量百分比为:
锆刚玉细粉 粒径 1 ~ 3mm 23.5%
4告刚玉细粉 粒径 Q.4~lmm 25%
锆刚玉细粉 粒径 0.065 - 0.088mm 16%
蓝晶石 8%
钛酸铝 5%
硅微粉 5%
氧化铝微粉 5.4%
镁锆砂 3%
纯铝酸钙水泥 4%
三聚磷酸钠 0.1%
电熔铬酸钙 2.5%
锌铝尖晶石 2.5%;
其中: 蓝晶石细度为 180目 ~ 220目 (过筛); 硅微粉釆用硅含量 Si >
98%的埃肯硅微粉, 镁锆砂中氧化镁(MgO)含量为 90%,钛酸铝中二氧化钛 (Ti02)含量为 40%。
乙料各组份的重量百分比为:
磷酸 75%
油墨级氢氧化铝 6.2%
氯化铝 6%
钇基稳定锆 8%
硼 2. 3%
烧结剂 2. 5 %
其中:磷酸采用浓度为 85 %磷酸;氯化铝的细度为 0. 008 ~ 0. 05讓 , 中 温烧结剂采用氧化镍。
制造时, 将曱料各组份按配比均勾混合后袋装, 将乙料各组份按配比 均匀混合反应后用塑料桶桶装, 施工前将 A料与 B料按重量份配比搅拌混 合即可。
实施例 4 、 高温耐磨修补涂料, 由 75 份重量的曱料和 25 份重量的乙 料组成, 其中:
曱料各组份的重量百分比为:
锆刚玉细粉 粒径 1 3画 15. 5%
锆刚玉细粉 粒径 0. 4 一 1腿 27%
锆刚玉细粉 粒径 0. 065 ~ 0. 088mm 14%
蓝晶石 16%
钛酸铝 6%
硅微粉 3%
镁锆砂 2. 5 %
氧化铝微粉 4%
纯铝酸钙水泥 8%
三聚磷酸钠 0. 5%
电熔铬酸钙 0. 5%
锌铝尖晶石 3 % ;
其中:蓝晶石细度为 180目 ~ 220目 (过筛); 硅微粉采用硅含量 Si >
98 %的埃肯硅微粉, 镁锆砂中氧化镁(MgO )含量为 90%,钛酸铝中二氧化钛 ( Ti02 )含量为 40%。
乙料各组份的重量百分比为:
磷酸 75%
油墨级氢氧化铝 11. 5 %
氯化铝 5%
钇基稳定锆 4%
硼砂 2%
烧结剂 2. 5 %
其中:磷酸采用浓度为 85 %磷酸;氯化铝的细度为 0. 008 - 0. 05mm , 中 温烧结剂釆用二氧化硅微粉。
制造时, 将甲料各组份按配比均匀混合后袋装, 将乙料各组份按配比 均匀混會反应后用塑料桶桶装, 施工前将 A料与 B料按重量份配比搅拌混 合即可。
实施例 5 、 高温耐磨修补涂料, 由 80份重量的甲料和 20 份重量的乙 料组成, 其中:
曱料各组份的重量百分比为:
锆刚玉细粉 粒径 1 —3隱 16%
锆刚玉细粉 粒径 0. 4 ~ lmm 26%
锆刚玉细粉 粒径 0. 065 ~ 0. 088mm 13 %
蓝晶石 9%
钛酸铝 8%
硅微粉 Si > 98 %埃肯硅微粉 7%
氧化铝微粉 8%
镁锆砂 4 %
纯铝酸钙水泥 5. 5%
三聚磷酸钠 0. 3%
电熔铬酸钙 1. 2%
锌铝尖晶石 2% ;
其中: 蓝晶石细度为 180目 - 220目 (过筛); 硅微粉采用硅含量 Si > 98%的埃肯硅微粉, 镁锆砂中氧化镁(MgO)含量为 90%,钛酸铝中二氧化钛 (Ti02)含量为 40°/。。
乙料各组份的重量百分比为:
磷酸
油墨级氢氧化铝
氯化铝
钇基稳定锆
硼砂
烧结剂 42667 7
% % % % Λ %
其中:磷酸采用浓度为 85%磷酸;氯化铝的细度为 0.008 ~ 0.05讓 , 中 温烧结剂采用硅溶胶和甘油, 其中硅溶胶和甘油各占上述重量配比 (4%) 一半, 即硅溶胶 2%, 甘油 2%。 制造时, 将曱料各组份按配比均匀混合后袋装, 将乙料各组份按配比 均匀混合反应后用塑料桶桶装, 施工前将 A料与 B料按重量份配比搅拌混 合即可。
强度 ' 后
(Mpa) 1 1 00
160 180 75 85
°c烘后
抗折 110
30 40 35 1 1 强度 °c烘后
(Mpa) 1 100
50 60 1 0 11
°c烘后
重烧线变化%
0. 04 0. 03 0. 07 0. 4 1450 °C 2h 体积密度 g 1
3. 5 3. 8 3. 1 2. 5 cm3
磨损量 ( cm3 ) 5 4 8 8 应说明的是, 以上实施例仅用以说明本发明的技术方案而非限制, 尽 管奏照较佳实施例对本发明进行了详细说明, 本领域的普通技术人员应当 理解, 可以对本发明的技术方案进行修改或者等同替换, 而不脱离本发明 技术方案的精神和范围, 其均应涵盖在本发明的权利要求范围当中。
Claims
权 利 要 求 书 种高温耐磨修补涂料, 由曱料和乙料按重量份配比 70
30 ~ 15组成, 其特征在于:
所述甲料各组份重量百分配比为:
锆刚玉细粉 粒径 1 ~ 3隱 15% - 25%
粒径 0.4~1画 25 % ~35%
粒径 0.065 ~ 0.088mm 13% ~ 23%
蓝晶石 8% -18%
钛酸铝 3% -9%
硅微粉 3% ~7%
镁锆砂 2% -5 %
氧化铝微粉 4 % ~ 8%
纯铝酸钙水泥 3% ~8%
三聚磷酸钠 0.1 % ~ 0.5% 电熔铬酸钙 0.5 % - 2.5% 辞铝尖晶石 0.5 % ~ 3 %
乙料各组份重量百分配比为:
磷酸 75% ~85
油墨级氢氧化铝 6% -15%
氯化铝 3 % ~ 6%
钇基稳定牿 3% ~ 8%
硼砂 0.3% ~ 2.3 % 烧结剂 2% -4%
2、 根据权利要求 1 所述的高温耐磨修补涂料, 其特征在于: 所述蓝 晶石细度为 180 目 ~ 220目, 硅微粉采用硅含量 > 98%的埃肯硅微粉, 镁 锆砂中氧化镁含量为 90%,钛酸铝中二氧化钛含量为 40°/»。
3、 根据权利要求 1 所述的高温耐磨修补涂料, 其特征在于: 所述的 乙料组份中磷酸的浓度为 85 % , 氯化铝细度为 0. 008 - 0. 05mm, 烧结剂采 用中低温可烧结的烧结剂。
4、 根据权利要求 3所述的高温耐磨修补涂料, 其特征在于: 所述烧 结剂为硅酸盐、 硼酸、 二氧化硅微粉、 氧化镍, 硅溶胶和甘油中的一种或 二种以上复合。
5、 权利要求 1所述的高温耐磨修补涂料的制备方法, 其特征在于: 按权利要求 1所述的甲料和乙料的重量百分配比, 将曱料各组份按配比秤 量后搅拌均匀混合后入袋封装, 将乙料各组份按配比秤量, 均匀混合反应 后用塑料桶桶装, 施工前将 A料与 B料按重量份配比 70 ~ 85 : 30 - 15比 例搅拌混合。
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