A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Chromium-free unburned brick for RH insert tube and preparation method of chromium-free unburned brick
The invention relates to a chromium-free unburned brick for an RH insert tube and a preparation method of the chromium-free unburned brick. The chromium-free unburned brick comprises the following rawmaterials in parts by weight: 10-15 parts of 98 fused magnesia-alumina spinel with the granularity of more than 1mm and less than or equal to 3mm; 25-30 parts of 98 fused magnesite of which the granularity is greater than 0 and less than or equal to 1mm; 15-20 parts of 98 fused magnesite of which the granularity is greater than 1mm and less than or equal to 3mm; 10-15 parts of 98 fused magnesiteof which the granularity is greater than 3mm and less than or equal to 5mm; 20 to 25 parts of 200-mesh fine powder of 98 fused magnesite; 3-5 parts of tabular corundum superfine powder; 1 to 1.5 partsof aluminum powder; 1 to 1.5 parts of silicon powder; 2-4 parts of active desilicated zirconium ultrafine powder; 1-3 parts of titanium dioxide; and 2-4 parts of a binding agent. According to the chromium-free unburned brick for the RH insert tube and the preparation method of the chromium-free unburned brick of the invention, chromium-containing raw materials are not added, so that the harm of hexavalent chromium to the environment and human bodies is effectively solved, meanwhile, the high-temperature resistance, abrasion resistance, stripping resistance and thermal shock resistance of theunburned brick for the RH insert tube are guaranteed, and the service life of the RH insert tube is prolonged.
本发明涉及一种RH插入管用无铬不烧砖及制备方法，包括以下重量份原料：1mm＜粒度≤3mm的98电熔镁铝尖晶石10‑15份；0＜粒度≤1mm的98电熔镁砂25‑30份；1mm＜粒度≤3mm的98电熔镁砂15‑20份；3mm＜粒度≤5mm的98电熔镁砂10‑15份；98电熔镁砂200目细粉20‑25份；板状刚玉超微粉3‑5份；铝粉1‑1.5份；硅粉1‑1.5份；活性脱硅锆超微粉2‑4份；二氧化钛1‑3份；结合剂2‑4份。优点是：不添加含铬原料有效的解决六价铬对环境和人体本身的危害，同时，保证了RH插入管用不烧砖的耐高温、耐磨损、抗剥落、抗热震性能，延长了RH插入管的使用寿命。
Chromium-free unburned brick for RH insert tube and preparation method of chromium-free unburned brick
The invention relates to a chromium-free unburned brick for an RH insert tube and a preparation method of the chromium-free unburned brick. The chromium-free unburned brick comprises the following rawmaterials in parts by weight: 10-15 parts of 98 fused magnesia-alumina spinel with the granularity of more than 1mm and less than or equal to 3mm; 25-30 parts of 98 fused magnesite of which the granularity is greater than 0 and less than or equal to 1mm; 15-20 parts of 98 fused magnesite of which the granularity is greater than 1mm and less than or equal to 3mm; 10-15 parts of 98 fused magnesiteof which the granularity is greater than 3mm and less than or equal to 5mm; 20 to 25 parts of 200-mesh fine powder of 98 fused magnesite; 3-5 parts of tabular corundum superfine powder; 1 to 1.5 partsof aluminum powder; 1 to 1.5 parts of silicon powder; 2-4 parts of active desilicated zirconium ultrafine powder; 1-3 parts of titanium dioxide; and 2-4 parts of a binding agent. According to the chromium-free unburned brick for the RH insert tube and the preparation method of the chromium-free unburned brick of the invention, chromium-containing raw materials are not added, so that the harm of hexavalent chromium to the environment and human bodies is effectively solved, meanwhile, the high-temperature resistance, abrasion resistance, stripping resistance and thermal shock resistance of theunburned brick for the RH insert tube are guaranteed, and the service life of the RH insert tube is prolonged.
本发明涉及一种RH插入管用无铬不烧砖及制备方法，包括以下重量份原料：1mm＜粒度≤3mm的98电熔镁铝尖晶石10‑15份；0＜粒度≤1mm的98电熔镁砂25‑30份；1mm＜粒度≤3mm的98电熔镁砂15‑20份；3mm＜粒度≤5mm的98电熔镁砂10‑15份；98电熔镁砂200目细粉20‑25份；板状刚玉超微粉3‑5份；铝粉1‑1.5份；硅粉1‑1.5份；活性脱硅锆超微粉2‑4份；二氧化钛1‑3份；结合剂2‑4份。优点是：不添加含铬原料有效的解决六价铬对环境和人体本身的危害，同时，保证了RH插入管用不烧砖的耐高温、耐磨损、抗剥落、抗热震性能，延长了RH插入管的使用寿命。
Chromium-free unburned brick for RH insert tube and preparation method of chromium-free unburned brick
一种RH插入管用无铬不烧砖及制备方法
LI CHANGJIANG (author) / ZHAO XIANHUA (author) / ZHANG YIXIAN (author) / YIN BIN (author) / JIN ZHAO (author)
2020-10-13
Patent
Electronic Resource
Chinese
| European Patent Office | 2023
| European Patent Office | 2020
| European Patent Office | 2023
| European Patent Office | 2023