公开(公告)号：US20240254051A1

公开(公告)日：2024-08-01

申请号：US18290398

申请日：2022-05-09

Applicant: ZIBO CITY LUZHONG REFRACTORIES CO., LTD. ,  THE UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJING ,  ZIBO LANGFENG HIGH TEMPERATURE MATERIALS CO., LTD.

Inventor： Junhong CHEN ,  Jisheng FENG ,  Yuanping JIA ,  Bin LI ,  Bo ZHU ,  Guangqi LI ,  Yutao GUO

IPC: C04B35/44 ,  C04B35/645

CPC classification number: C04B35/44 ,  C04B35/645 ,  C04B2235/3208 ,  C04B2235/3222 ,  C04B2235/3244 ,  C04B2235/5436 ,  C04B2235/656 ,  C04B2235/77

Abstract: The present invention belongs to the technical field of refractory materials, and disclosed are a high-purity compact calcium hexa-aluminate-based refractory material, a preparation method therefor, and a working lining using the same. The mixing ratio is adjusted according to the chemical composition of the final product to contain raw materials containing CaO, Al2O3 and ZrO2, the mixing ratio enabling the ratio of the chemical composition CaO:Al2O3:ZrO2 calculated according to parts by mass to be 45.5-95.5%:2.0-8.4%:0-50%; and the chemical composition are placed into a high-temperature furnace and a mold for hot-pressing is carried out, the maximum temperature is 1550-1800° C., and the hot-pressing strength is 0.5-30 MPa. In the present invention, when no sintering agent is added, a hot-pressing sintering process is employed according to a proportion to obtain a high-purity compact calcium hexa-aluminate-based refractory material, and the refractory material has excellent resistance to molten steel erosion and thermal shock stability, and can be widely applied in metallurgy, building materials and petrochemical industries as well as other industries. The preparation method is scientific and reasonable, product purity is high, and the prepared refractory material product can increase a device operation period; in addition, production costs are reduced, and energy-saving and emission-reducing effects are achieved.

公开(公告)号：US20240246862A1

公开(公告)日：2024-07-25

申请号：US18290388

申请日：2022-05-09

Applicant: ZIBO CITY LUZHONG REFRACTORIES CO., LTD. ,  THE UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJING ,  ZIBO LANGFENG HIGH TEMPERATURE MATERIALS CO., LTD.

Inventor： Junhong CHEN ,  Jisheng FENG ,  Yuanping JIA ,  Bin LI ,  Bo ZHU ,  Guangqi LI ,  Yutao GUO

IPC: C04B35/119 ,  B22D41/02 ,  C04B35/645

CPC classification number: C04B35/119 ,  B22D41/02 ,  C04B35/645 ,  C04B2235/3206 ,  C04B2235/3208 ,  C04B2235/3217 ,  C04B2235/3244 ,  C04B2235/5427 ,  C04B2235/5436 ,  C04B2235/656 ,  C04B2235/77 ,  C04B2235/9676

Abstract: Disclosed in the present invention are a corrosion-resistant refractory material, preparation method therefor, and the use thereof. In the corrosion-resistant refractory material, a material phase of the refractory material comprises corundum and one or more material phases selected from CA6, C2M2A14, CM2A8, and ZrO2. The refractory material has low a low amount of a high-temperature liquid phase, a uniform pore structure, and good thermal shock stability; can be widely used in steel-making production lines and also in the refractory linings of rotary kilns, and has good erosion resistance and low thermal conductivity, and the performance thereof is obviously superior to that of many existing refractory materials such as silico carbide-mullite bricks and magnesia-alumina spinel bricks.

公开(公告)号：US20240261851A1

公开(公告)日：2024-08-08

申请号：US18290389

申请日：2022-05-10

Applicant: THE UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJING ,  ZIBO CITY LUZHONG REFRACTORIES CO., LTD. ,  ZIBO LANGFENG HIGH TEMPERATURE MATERIALS CO., LTD.

Inventor： Junhong CHEN ,  Jisheng FENG ,  Yuanping JIA ,  Bin LI ,  Bo ZHU ,  Guangqi LI ,  Yutao GUO

IPC: B22D41/02 ,  C04B35/119 ,  C04B35/645

CPC classification number: B22D41/02 ,  C04B35/119 ,  C04B35/645 ,  C04B2235/3206 ,  C04B2235/3208 ,  C04B2235/3217 ,  C04B2235/3244 ,  C04B2235/5427 ,  C04B2235/5436 ,  C04B2235/656 ,  C04B2235/77 ,  C04B2235/9676

Abstract: The present application discloses a refractory material with the function of cleaning molten steel, a preparation method therefor and the use thereof. The material phase of the refractory material of the present application comprises one or more of CA6, CMA, corundum and ZrO2. The refractory material prepared by the present application has a high purity, good erosion resistance, good slag permeability resistance and high thermal shock stability, reduces the amount of refractory material eroded into molten steel, reduces the pollution of the molten steel, and can also give full play to the performance advantages of high-purity raw materials.

公开(公告)号：US20240246861A1

公开(公告)日：2024-07-25

申请号：US18290391

申请日：2022-05-10

Applicant: ZIBO LANGFENG HIGH TEMPERATURE MATERIALS CO., LTD. ,  THE UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJING ,  ZIBO CITY LUZHONG REFRACTORIES CO., LTD.

Inventor： Junhong CHEN ,  Jisheng FENG ,  Yuanping JIA ,  Bin LI ,  Bo ZHU ,  Guangqi LI ,  Yutao GUO

IPC: C04B35/101 ,  B22D41/02 ,  C04B35/645

CPC classification number: C04B35/1015 ,  B22D41/02 ,  C04B35/645 ,  C04B2235/3222 ,  C04B2235/656 ,  C04B2235/77 ,  C04B2235/9607 ,  C04B2235/9676

Abstract: Disclosed are a CA6-based thermally insulating refractory material with a medium volume density, a preparation method therefor, and the use thereof. The CA6-based thermally insulating refractory material with a medium volume density in the present invention has phases comprising CA6 and one or more selected from C2M2A14, C2M2A8, magnesium aluminate spinel, and corundum, and the refractory material has a high purity, good high temperature stability, a uniform structure, stable performance, a relatively low thermal conductivity, and good corrosion resistance to a metal, slag, etc.