Henan Yu Mo New Material Co., Ltd. specializes in producing high-quality products. The products undergo strict acid-base washing and electric furnace drying processes, ensuring high purity, uniform particle size, and minimal impurities..
The company can customize according to customer needs, provide professional standard particle size comparison charts and testing equipment, and provide sample delivery services to facilitate customers to conduct product testing and evaluation.
Henan YuMo New Materials Co., Ltd. adheres to the corporate spirit of “dedication, refinement, rigor and harmony”, pursues excellence, establishes a strong brand image, and has won a good reputation in the industry.
Black fused alumina, also known as low-aluminum fused alumina, is a gray-black crystal with α-Al2O3 and iron spinel as the main mineral phases, which is obtained by smelting bauxite in an electric arc furnace. It is characterized by low Al2O3 content and a certain amount of Fe2O3 (about 10%), so it has the characteristics of moderate hardness, high toughness, high temperature resistance, and stable thermal performance. It is mostly used for free grinding, such as grinding and rough grinding before electroplating of products, mainly used for polishing and sandblasting of stainless steel, metal products, optical glass, bamboo and wood products, and is also a novel abrasive for manufacturing resin grinding wheels, cutting discs, and emery cloths.
| Chemical Composition(%) | Al₂O₃(%) | Fe₂O₃(%) | SiO₂(%) | |
| BA-1 | 75-85 | 9-11 | ≤8.0 | |
| BA-2 | 60-75 | 10-12 | ≤10.0 | |
| Advantage | high toughness | |||
| high temperature resistance | ||||
| stable thermal property | ||||
| strong cutting ability | ||||
| durability | ||||
| high work efficiency | ||||
| Parameter | The color: black | |||
| The shape: particle in trigonal shape | ||||
| Melting point:2050℃ | ||||
| The max temperature:1850℃ | ||||
| True density(g/cm³): ≥3.50 | ||||
| Coefficient of linear expansion(0-1600℃): 7-9 | ||||
| Available sizes | JIS |
#8 #10 #12 #14 #16 #20 #24 #30 #36 #46 #54 #60
#70 #80 #90 #100 #120 #150 #180 #220 #240 #280 #320 #360
#400 #500 #600 #800 #1000 #1200 #1500 #2000 | ||
| FEPA |
F8 F10 F12 F14 F16 F20 F22 F24 F30 F36 F40 F46
F54 F60 F70 F80 F90 F100 F120 F150 F180 F220 F230 F240
F280 F320 F360 F400 F500 F600 F800 F1000 | |||
Copyright 2018-2024 © All ymcorundum.com
