ENCAPSULATED WEAR PARTICLES

• Main Author: MONTROSS CHARLES S
• Format: Patent
• Language: English; Korean
• Published: 19.09.2016
• Subjects: ARMOUR; ARMOURED OR ARMED VEHICLES; ARMOURED TURRETS; BEARINGS; BLASTING; DREDGING; EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; ELEMENTS OR CRANKSHAFT MECHANISMS; ENGINEERING ELEMENTS AND UNITS; FIXED CONSTRUCTIONS; FLEXIBLE SHAFTS; FOUNDATIONS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; GRINDING; HEATING; HUMAN NECESSITIES; HYDRAULIC ENGINEERING; HYGIENE; LIGHTING; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL; MECHANICAL ENGINEERING; MEDICAL OR VETERINARY SCIENCE; MINING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS; PERFORMING OPERATIONS; POLISHING; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES; PUMPS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; SHAFTS; SOIL SHIFTING; THERMAL INSULATION IN GENERAL; TOOLS FOR GRINDING, BUFFING, OR SHARPENING; TRANSPORTING; WEAPONS

부재의 표면을 형성하는 매트릭스에 경질 입자를 합체시키는 것은 내마모성을 상당히 증가시킬 수 있다. 공기 중에서 700℃ 초과 온도에서 탄소 구조가 흑연으로 열화되기 때문에, 산업적 응용에서 다이아몬드의 실제 이용이 제한적이다. 또한, 용융된 철에 노출될 때, 다이아몬드 표면은 화학적으로 반응하여 철 안으로 용해될 수 있다. 다이아몬드를 코팅하는 금속 화합물은 다이아몬드 표면과 그의 구조를 열화하는 원소의 접촉을 제한하는 하나 이상의 보호 층을 제공할 수 있다. 또한, 코팅은 가공 동안에 매트릭스 내에 입자의 보유를 개선하기 위해 용융된 매트릭스에 습윤가능한 표면을 제공할 수 있다. Incorporating hard particles in a matrix forming the surface of a member can significantly increase wear resistance. Practical use of diamond in industrial applications is limited as the carbon structure breaks down to graphite in air at temperatures over 700° C. When exposed to molten iron the diamond surface can also chemically react and dissolve into the iron. Metal compounds that coat the diamond can provide one or more protective layers that limit contact of the diamond surface with elements that will degrade its structure. Coating can also provide a wettable surface for the molten matrix during processing to improve retention of the particle in the matrix.