Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention relates to a corundum-titanium nitride sliding rail material of a cooling-free steel rolling heating furnace and a preparation method of the corundum-titanium nitride sliding rail material. According to the invention, corundum is used as a matrix raw material, and the volume fraction of the corundum in the composite material is 70-80%, wherein a binding agent is non-stoichiometric titanium nitride (TiNX, 0.3<=X<=0.5), and the volume fraction of the binding agent in the composite material is 20-30%. According to the invention, the non-stoichiometric compound TiNx is introduced into a corundum matrix as the binding agent, and the composite material with refined microstructure, improved strength, improved wear resistance, improved thermal shock resistance, improved slag corrosion resistance and the like is prepared at a low sintering temperature. Thus, the key problems that in the using process of a brown fused alumina-silicon carbide sliding rail brick, SiC and iron form bad products, and the service life of the brick is affected are solved. The non-cooling slide rail material is directly contacted with a steel billet, is long in service life, low in cost and stable inlong-term high-temperature working performance, and is a novel non-cooling slide rail material suitable for a steel rolling heating furnace.
本发明涉及一种无冷却轧钢加热炉刚玉‑氮化钛滑轨材料及其制备方法。本发明以刚玉为基体原料，刚玉在复合材料中体积分数为70‑80％；结合剂是非化学计量比氮化钛(TiN，0.3≤X≤0.5)，结合剂在复合材料中体积分数为20‑30％。本发明将非化学计量比化合物TiN引入到刚玉基体中作结合剂，在较低的烧结温度下制备出微观组织细化以及强度、耐磨性、抗热震性和抗渣蚀性等都得到改善的复合材料。从而解决了棕刚玉‑碳化硅滑轨砖在使用过程中，SiC与铁形成不良产物而影响其使用寿命等关键问题。本发明与钢坯直接接触使用寿命长、成本低、长期高温工作性能稳定，是一种新型的适用于轧钢加热炉中的无冷却滑轨材料。
The invention relates to a corundum-titanium nitride sliding rail material of a cooling-free steel rolling heating furnace and a preparation method of the corundum-titanium nitride sliding rail material. According to the invention, corundum is used as a matrix raw material, and the volume fraction of the corundum in the composite material is 70-80%, wherein a binding agent is non-stoichiometric titanium nitride (TiNX, 0.3<=X<=0.5), and the volume fraction of the binding agent in the composite material is 20-30%. According to the invention, the non-stoichiometric compound TiNx is introduced into a corundum matrix as the binding agent, and the composite material with refined microstructure, improved strength, improved wear resistance, improved thermal shock resistance, improved slag corrosion resistance and the like is prepared at a low sintering temperature. Thus, the key problems that in the using process of a brown fused alumina-silicon carbide sliding rail brick, SiC and iron form bad products, and the service life of the brick is affected are solved. The non-cooling slide rail material is directly contacted with a steel billet, is long in service life, low in cost and stable inlong-term high-temperature working performance, and is a novel non-cooling slide rail material suitable for a steel rolling heating furnace.
本发明涉及一种无冷却轧钢加热炉刚玉‑氮化钛滑轨材料及其制备方法。本发明以刚玉为基体原料，刚玉在复合材料中体积分数为70‑80％；结合剂是非化学计量比氮化钛(TiN，0.3≤X≤0.5)，结合剂在复合材料中体积分数为20‑30％。本发明将非化学计量比化合物TiN引入到刚玉基体中作结合剂，在较低的烧结温度下制备出微观组织细化以及强度、耐磨性、抗热震性和抗渣蚀性等都得到改善的复合材料。从而解决了棕刚玉‑碳化硅滑轨砖在使用过程中，SiC与铁形成不良产物而影响其使用寿命等关键问题。本发明与钢坯直接接触使用寿命长、成本低、长期高温工作性能稳定，是一种新型的适用于轧钢加热炉中的无冷却滑轨材料。
Corundum-titanium nitride sliding rail material of non-cooling steel rolling heating furnace and preparation method of corundum-titanium nitride sliding rail material
无冷却轧钢加热炉刚玉-氮化钛滑轨材料及其制备方法
QIAO LINA (Autor:in)
04.08.2020
Patent
Elektronische Ressource
Chinesisch
Titanium nitride coated high titanium corundum and preparation method and application thereof
| Europäisches Patentamt | 2021
| Europäisches Patentamt | 2022
Preparation of nitride combined corundum-silicon carbide composite material
| Europäisches Patentamt | 2024
Titanium-reinforced corundum refractory material and preparation method thereof
| Europäisches Patentamt | 2020
Titanium extraction tailing combined corundum refractory material and preparation method thereof
| Europäisches Patentamt | 2024