SINTERED BALLS MADE OF TUNGSTEN CARBIDE

• Main Authors: BOTTIGLIERI STEPHEN, BOUSSANT ROUX YVES MARCEL LEON, ROSSIQUET GILLES, BOUTTES DAVID, NONNET EMMANUEL
• Format: Patent
• Language: English; Korean
• Published: 26.01.2024
• Subjects: ALLOYS; ARTIFICIAL STONE; CASTING; CEMENTS; CERAMICS; CHEMISTRY; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; CONCRETE; FERROUS OR NON-FERROUS ALLOYS; LIME, MAGNESIA; MAKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; METALLURGY; PERFORMING OPERATIONS; POWDER METALLURGY; REFRACTORIES; SLAG; TRANSPORTING; TREATMENT OF ALLOYS OR NON-FERROUS METALS; TREATMENT OF NATURAL STONE; WORKING METALLIC POWDER

다음을 갖는 소결된 볼: - 볼의 중량을 기준으로 한 중량 백분율로, 하기 화학 조성: - 89% W ≤ 97%; - 5% ≤ C ≤ 8%; - Co ≤ 0.5%; - Ni ≤ 0.5%; - W, C, Co 및 Ni 이외의 원소, 또는 "기타 원소": ≤ 3%; - 결정화된 상을 기준으로 하여, 55 중량% 초과, 바람직하게는 80 중량% 초과의 텅스텐 카바이드 함량; - 14 g/cm3이상의 겉보기 질량 밀도. Use, as a milling agent for milling a suspension, wet dispersing agent or for surface treatment, of a powder comprising more than 90% by mass of sintered balls, each sintered ball having: a chemical composition such that, in percentages by mass based on the mass of the ball: 89%≤W≤97%; 5%≤C≤8%; Co≤0.5%; Ni≤0.5%; Elements other than W, C, Co, and Ni, or "Other elements": ≤3%; a tungsten carbide(s) content greater than 55% in percentage by mass based on the crystallized phases; a bulk density greater than or equal to 14 g/cm3.