Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Production process of corundum aerator
The invention relates to a production process of a corundum aerator. Coarse corundum sand is also added into a corundum raw material A, the grain size of the coarse corundum sand is larger, and the coarse corundum sand has more sharp edges and corners, so that pores for accommodating materials with smaller grain sizes can exist among the coarse corundum sand. Corn flour and wheat flour are used as organic powder to fill the pores, oxides and other inorganic matter can be generated after sintering, a reinforcing agent is added into an aeration disc blank, boric acid and basic magnesium carbonate in the reinforcing agent are continuously decomposed in the heating process, and the boric acid and the basic magnesium carbonate react at about 730 DEG C to generate Mg2B2O5 and MgB4O7. Crystal whiskers are continuously grown in the subsequent heating process, the growth of the crystal whiskers can be promoted by iron nitrate nonahydrate, and the crystal whiskers are mutually overlapped in a three-dimensional space to increase the structural strength of the aeration disc and reduce pores in the aeration disc, so that the produced aerator is firmer and more durable.
本发明涉及一种刚玉曝气器的生产工艺，刚玉原料A中还添加了刚玉砂粗砂，刚玉砂粗砂的粒径更大，并且刚玉砂粗砂具有较多的尖锐棱角，使得刚玉砂粗砂间可以存在容纳较小粒径材料的孔隙，其中玉米面粉和小麦面粉作为有机粉末填充在这些孔隙中，在烧结后会生成氧化物和其他无机物，而曝气盘坯料中添加有增强剂，该增强剂中的硼酸和碱式碳酸镁在受热过程中不断分解，并在730℃左右两者反应生成Mg2B2O5及MgB4O7，而且在后续升温过程中不断生长成晶须，九水硝酸铁可以促进晶须的生长，这些晶须在三维空间上相互搭接增加曝气盘的结构强度，并减小曝气盘上的孔隙，使生产出的曝气器更加结实耐用。
Production process of corundum aerator
The invention relates to a production process of a corundum aerator. Coarse corundum sand is also added into a corundum raw material A, the grain size of the coarse corundum sand is larger, and the coarse corundum sand has more sharp edges and corners, so that pores for accommodating materials with smaller grain sizes can exist among the coarse corundum sand. Corn flour and wheat flour are used as organic powder to fill the pores, oxides and other inorganic matter can be generated after sintering, a reinforcing agent is added into an aeration disc blank, boric acid and basic magnesium carbonate in the reinforcing agent are continuously decomposed in the heating process, and the boric acid and the basic magnesium carbonate react at about 730 DEG C to generate Mg2B2O5 and MgB4O7. Crystal whiskers are continuously grown in the subsequent heating process, the growth of the crystal whiskers can be promoted by iron nitrate nonahydrate, and the crystal whiskers are mutually overlapped in a three-dimensional space to increase the structural strength of the aeration disc and reduce pores in the aeration disc, so that the produced aerator is firmer and more durable.
本发明涉及一种刚玉曝气器的生产工艺，刚玉原料A中还添加了刚玉砂粗砂，刚玉砂粗砂的粒径更大，并且刚玉砂粗砂具有较多的尖锐棱角，使得刚玉砂粗砂间可以存在容纳较小粒径材料的孔隙，其中玉米面粉和小麦面粉作为有机粉末填充在这些孔隙中，在烧结后会生成氧化物和其他无机物，而曝气盘坯料中添加有增强剂，该增强剂中的硼酸和碱式碳酸镁在受热过程中不断分解，并在730℃左右两者反应生成Mg2B2O5及MgB4O7，而且在后续升温过程中不断生长成晶须，九水硝酸铁可以促进晶须的生长，这些晶须在三维空间上相互搭接增加曝气盘的结构强度，并减小曝气盘上的孔隙，使生产出的曝气器更加结实耐用。
Production process of corundum aerator
一种刚玉曝气器的生产工艺
DING ZHAOHUA (Autor:in) / DING SHANLIANG (Autor:in)
21.12.2021
Patent
Elektronische Ressource
Chinesisch
Corundum microporous aerator and production method thereof
| Europäisches Patentamt | 2021