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A platform for research: civil engineering, architecture and urbanism
Magnesium oxide light heat insulation brick and preparation method thereof
The invention discloses a preparation method of a magnesium oxide lightweight heat-insulation heat-preservation brick, which comprises the following steps: step 1, material preparation: selecting magnesia, an additive, glass fiber and water in proportion for later use; wherein the magnesite is screened before being used, impurities, large particles and small particles are removed, and the particle size range of the selected magnesite is 3-5 mm; 2, mixing: adding the magnesia, the additive, the glass fiber and the water into mixing equipment, and stirring until the materials are fully mixed; and step 3, preparing a green brick: injecting the mixed material into a mold, compacting the injected material, and demolding and drying after the material is cured to obtain the green brick. According to the invention, before use, the magnesia is screened, and impurities, large particles and small particles are extracted, so that the porosity and the overall structural strength of the brick body are controlled, the internal compactness difference of a rotating body is prevented from being too large, and the volume density, the heat conductivity coefficient, the structural strength of a product and the qualified rate are ensured to reach expectations.
本发明公开了一种氧化镁轻质隔热保温砖的制备方法，包括以下步骤：步骤一、备料：按比例选取镁砂、添加剂、玻璃纤维和水，备用；其中，所述镁砂使用前进行筛选，剔除杂质、较大颗粒和较小颗粒，选取的镁砂粒径范围为3‑5mm；步骤二、混料：将镁砂、添加剂、玻璃纤维和水加入混料设备中，搅拌至物料充分混合；步骤三、制坯：将混合好的物料注入模具中，并将注入的物料压实，待物料固化后，脱模干燥为砖坯。本发明中，在使用前对镁砂进行筛选，提出杂质、较大颗粒和较小颗粒，以便对砖体的气孔率和整体结构强度进行控制，以避免转体内部致密性差异过大，保证体积密度、导热系数、产品的结构强度和合格率达到预期。
Magnesium oxide light heat insulation brick and preparation method thereof
The invention discloses a preparation method of a magnesium oxide lightweight heat-insulation heat-preservation brick, which comprises the following steps: step 1, material preparation: selecting magnesia, an additive, glass fiber and water in proportion for later use; wherein the magnesite is screened before being used, impurities, large particles and small particles are removed, and the particle size range of the selected magnesite is 3-5 mm; 2, mixing: adding the magnesia, the additive, the glass fiber and the water into mixing equipment, and stirring until the materials are fully mixed; and step 3, preparing a green brick: injecting the mixed material into a mold, compacting the injected material, and demolding and drying after the material is cured to obtain the green brick. According to the invention, before use, the magnesia is screened, and impurities, large particles and small particles are extracted, so that the porosity and the overall structural strength of the brick body are controlled, the internal compactness difference of a rotating body is prevented from being too large, and the volume density, the heat conductivity coefficient, the structural strength of a product and the qualified rate are ensured to reach expectations.
本发明公开了一种氧化镁轻质隔热保温砖的制备方法，包括以下步骤：步骤一、备料：按比例选取镁砂、添加剂、玻璃纤维和水，备用；其中，所述镁砂使用前进行筛选，剔除杂质、较大颗粒和较小颗粒，选取的镁砂粒径范围为3‑5mm；步骤二、混料：将镁砂、添加剂、玻璃纤维和水加入混料设备中，搅拌至物料充分混合；步骤三、制坯：将混合好的物料注入模具中，并将注入的物料压实，待物料固化后，脱模干燥为砖坯。本发明中，在使用前对镁砂进行筛选，提出杂质、较大颗粒和较小颗粒，以便对砖体的气孔率和整体结构强度进行控制，以避免转体内部致密性差异过大，保证体积密度、导热系数、产品的结构强度和合格率达到预期。
Magnesium oxide light heat insulation brick and preparation method thereof
一种氧化镁轻质隔热保温砖及其制备方法
WANG HAIXIAO (author) / WANG LICHAO (author)
2022-04-19
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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