厂家 喷砂抛光磨料brown fused alumina棕刚玉
棕刚玉粒度砂型号对照:
Grit Size | Predominant Grit | Grit Size | Predominant Grit |
F8# | 2.80~2.00mm | F54# | 355~300micron |
F10# | 2.36~1.70mm | F60# | 300~250micron |
F12# | 2.00~1.40mm | F70# | 250~212micron |
F14# | 1.70~1.18mm | F80# | 212~180micron |
F16# | 1.40~1.00mm | F90# | 180~150micron |
F20# | 1180~850micron | F100# | 150~125micron |
F24# | 850~710micron | F120# | 125~106micron |
F30# | 710~600micron | F150# | 106~75micron |
F36# | 600~500micron | F180# | 90~63micron |
F46# | 425~355micron | F220# | 75~33micron |
棕刚玉是以铝矾土、焦碳(无烟煤)为主要原料,在电弧炉内经高温冶炼而成。主要化学成份为AL2O3、TiO2还含有少量的Sio2和Fe2O3等,显微硬度HV1800-2200、韧性比SiC高,用它制成的磨具,适于磨削抗张强度较高的金属,如各种通用钢材、可锻铁、硬青铜等。也可制造耐火材料。