A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
SHAPED ABRASIVE PARTICLES WITH LOW ROUNDNESS FACTOR
성형된 연마 입자로서, 알파 알루미나를 포함하고, 성형된 연마 입자의 종축을 따라 소정의 단면 형상을 가지며, 단면 형상은 비원형 단면 평면을 포함하고, 성형된 연마 입자는 약 15% 내지 0%의 평균 원형율을 포함하는 성형된 연마 입자가 제공된다.
Shaped abrasive particles (20) comprising alpha alumina; and a first face (24) and a second face (26) connected to each other by sidewalls (22), the first face (24) and the second face (26) being separated by a thickness (t); wherein the shaped abrasive particles have a cross-sectional shape along a longitudinal axis (50) of the shaped abrasive particles (20), the cross-sectional shape comprising a rectangular cross-sectional shape in a cut transverse at 90 degrees to the longitudinal axis (50) at a location between a first transverse line (56) drawn at 1/4 of an overall length of the shaped abrasive particles (20) along the longitudinal axis (50) and a second transverse line (58) drawn at 3/4 of the overall length of the shaped abrasive particles (20); wherein the shaped abrasive particles comprise an Average Roundness Factor of between about 15% to 0%, the Average Roundness Factor being determined by measuring a Roundness Factor of 10 individual shaped abrasive particles and averaging the 10 individual results, the Roundness factor being calculated as RoundnessFactor%=MissingArea68ActualArea66×100 wherein the Actual Area (66) is the actual area of the cross-sectional plane; wherein the Missing Area (68) is determined by bounding each of the sidewalls (22), the first face (24), and the second face (26) of the cross-sectional plane by a line (62) drawn tangent to the two highest points located anywhere along the respective sidewalls (22), first face (24), and second face (26), thereby enclosing a Maximum Area (64) having a polygonal shape, and subtracting the Actual Area (66) from said Maximum Area (64).
SHAPED ABRASIVE PARTICLES WITH LOW ROUNDNESS FACTOR
성형된 연마 입자로서, 알파 알루미나를 포함하고, 성형된 연마 입자의 종축을 따라 소정의 단면 형상을 가지며, 단면 형상은 비원형 단면 평면을 포함하고, 성형된 연마 입자는 약 15% 내지 0%의 평균 원형율을 포함하는 성형된 연마 입자가 제공된다.
Shaped abrasive particles (20) comprising alpha alumina; and a first face (24) and a second face (26) connected to each other by sidewalls (22), the first face (24) and the second face (26) being separated by a thickness (t); wherein the shaped abrasive particles have a cross-sectional shape along a longitudinal axis (50) of the shaped abrasive particles (20), the cross-sectional shape comprising a rectangular cross-sectional shape in a cut transverse at 90 degrees to the longitudinal axis (50) at a location between a first transverse line (56) drawn at 1/4 of an overall length of the shaped abrasive particles (20) along the longitudinal axis (50) and a second transverse line (58) drawn at 3/4 of the overall length of the shaped abrasive particles (20); wherein the shaped abrasive particles comprise an Average Roundness Factor of between about 15% to 0%, the Average Roundness Factor being determined by measuring a Roundness Factor of 10 individual shaped abrasive particles and averaging the 10 individual results, the Roundness factor being calculated as RoundnessFactor%=MissingArea68ActualArea66×100 wherein the Actual Area (66) is the actual area of the cross-sectional plane; wherein the Missing Area (68) is determined by bounding each of the sidewalls (22), the first face (24), and the second face (26) of the cross-sectional plane by a line (62) drawn tangent to the two highest points located anywhere along the respective sidewalls (22), first face (24), and second face (26), thereby enclosing a Maximum Area (64) having a polygonal shape, and subtracting the Actual Area (66) from said Maximum Area (64).
SHAPED ABRASIVE PARTICLES WITH LOW ROUNDNESS FACTOR
낮은 원형율을 갖는 성형된 연마 입자
2017-01-17
Patent
Electronic Resource
Korean
IPC:
C09K
Materialien für Anwendungen, soweit nicht anderweitig vorgesehen
,
MATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR
/
B24D
TOOLS FOR GRINDING, BUFFING OR SHARPENING
,
Werkzeuge zum Schleifen, Polieren oder Schärfen
/
C01F
COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
,
Verbindungen der Metalle Beryllium, Magnesium, Aluminium, Calcium, Strontium, Barium, Radium, Thorium oder der Seltenen Erden
/
C04B
Kalk
,
LIME