摘要:
The present invention relates to a cutting tip for a cutting tool, which is used in cutting or drilling a brittle workpiece such as stone, bricks, concrete, and asphalt and has an excellent cutting speed and a long lifetime, a method of manufacturing the cutting tip, and a cutting tool including the cutting tip. The cutting tip includes an abrasive material and a sintered bonding material, wherein the bonding material is formed of a metal matrix; the metal matrix includes a phase II and/or pore having a certain size at a certain volume fraction; and the phase II is one of a non-metallic inclusion and ceramic. According to an aspect of the present invention, there is provided a cutting tip having excellent cutting speed and a long lifetime at a much lower price.
摘要:
The present invention relates to a cutting tip for a cutting tool, which is used in cutting or drilling a brittle workpiece such as stone, bricks, concrete, and asphalt and has an excellent cutting speed and a long lifetime, a method of manufacturing the cutting tip, and a cutting tool including the cutting tip. The cutting tip includes an abrasive material and a sintered bonding material, wherein the bonding material is formed of a metal matrix; the metal matrix includes a phase UI and/or pore having a certain size at a certain volume fraction; and the phase II is one of a non-metallic inclusion and ceramic. According to an aspect of the present invention, there is provided a cutting tip having excellent cutting speed and a long lifetime at a much lower price.
摘要:
A chemical mechanical polishing apparatus having a conditioning cleaning device capable of efficiently cleaning a diamond pad is disclosed. The conditioner cleaning device of the present invention is capable of increasing cleaning efficiency by uniformly spraying a cleaning solution on upper and side faces of a diamond disk. When the diamond disk is efficiently cleaned, the process reliability of a wafer is increased.
摘要:
A microwave oven is disclosed in which the structure of the wave guiding tube is improved such that the variation of the impedance is minimized in spite of the variation of the load of the food, thereby making it possible to maintain the output of the microwave oven at a constant level regardless of the load of the food. The microwaves are divided into a plurality of wave streams, and the wave streams are made to have different phases. The microwave oven includes an input wave guiding tube coupled with a magnetron, for receiving microwaves from the magnetron. A first output wave guiding tube communicates to the input wave guiding tube, for receiving the microwaves from the input wave guiding tube to diffusely irradiate the microwaves into a cavity. A second wave guiding tube communicates to the input wave guiding tube, for converting the microwaves to a phase different from that of the first wave guiding tube to irradiate them into the cavity.
摘要:
A chemical mechanical polishing apparatus having a conditioning cleaning device capable of efficiently cleaning a diamond pad is disclosed. The conditioner cleaning device of the present invention is capable of increasing cleaning efficiency by uniformly spraying a cleaning solution on upper and side faces of a diamond disk. When the diamond disk is efficiently cleaned, the process reliability of a wafer is increased.
摘要:
A microwave oven adapted to radiate microwaves of mutually reverse phases to minimize impedance variation of a waveguide in response to load change of foodstuff, thereby maintaining an output of the microwave at a constant level regardless of load amount of the foodstuff and maintaining an electric field distribution in a cavity at a constant level as well.
摘要:
A microwave oven has a cooking chamber in which a vertically movable turntable is disposed. During the onset of a cooking operation, a control mechanism automatically raises the turntable in step-by-step fashion, and the amount of high frequency waves reflected from the cooking chamber is detected at each vertical position of the turntable. Then, the vertical position of the turntable at which the detected amount of reflective frequency was the lowest is determined, and the turntable is set at that position to continue the cooking operation. If the detected amount of reflective frequency changes, a new vertical position of the turntable at which the amount of reflective frequency is lowest, is re-determined, and the turntable is set at that new position.