摘要:
A method of producing silicon carbide is provided. The method includes heating a cured product of a curable silicone composition in a non-oxidizing atmosphere at a temperature exceeding 1,500° C. but not more than 2,600° C. The method is capable of producing high-purity silicon carbide simply and at a high degree of productivity, and is capable of simply producing a silicon carbide molded item having a desired shape and dimensions.
摘要:
A method of producing silicon carbide is provided. The method includes heating a cured product of a curable silicone composition in a non-oxidizing atmosphere at a temperature exceeding 1,500° C. but not more than 2,600° C. The method is capable of producing high-purity silicon carbide simply and at a high degree of productivity, and is capable of simply producing a silicon carbide molded item having a desired shape and dimensions.
摘要:
In the method for manufacturing a droplet discharge head, a mold 100, including a convexity portion having convexities which have the substantially same shape as a liquid chamber including pressure chambers 21 and nozzle sections 21b, is prepared. A slurry SL is filled into the mold 100, and the mold 100 is placed on a porous plate 120. A solvent included in the slurry permeates into fine pores of the porous plate. Accordingly, the slurry is dried, so that a compact-after-dried 110 is formed. Thereafter, a vibration plate, and the like are joined to the compact, and the compact is fired. Further, piezoelectric elements, and the like are formed on the pressure chambers.
摘要:
A mold having concave portions in a predetermined 3-D shape is prepared. A slurry is filled into the concave portions and the mold storing the slurry is then placed on an upper surface of a ceramic green sheet. A pressure inside the sheet is lowered through a pipe and a sintered porous metal support with the green sheet being heated by a hot plate. Accordingly, a solvent in the slurry is permeated into the fine pores of the green sheet and evaporated, thereby drying the 3-D forming portion without deformation.
摘要:
An electric-discharge machining apparatus for machining a workpiece by an electric discharge generated between a machining electrode and the workpiece, includes a correcting unit that corrects a machining amount input for machining the workpiece, based on a usage history of the machining electrode; and a control unit that controls a machining processing on the workpiece based on the machining amount corrected.
摘要:
A semiconductor memory device is provided, which comprising a memory cell array comprising a two-value memory region and a multi-value memory region, in which the two-value memory region comprises a plurality of memory cells each storing 1-bit data and the multi-value memory region comprises a plurality of memory cells each storing 2 or more-bit data, and a sense amplifier section common to data read of the two-value memory region and data read of the multi-value memory region, for reading data stored in a selected memory cell by comparing a potential of the selected memory cell with a reference potential.
摘要:
A sketching interface for quickly and easily designing freeform models such as stuffed animals and other rotund objects. The user draws several 2D freeform strokes interactively on the screen and the system automatically constructs plausible 3D polygonal surfaces. The system supports several modeling operations, including the operation to construct a 3D polygonal surface from a 2D silhouette drawn by the user: it inflates the region surrounded by the silhouette making wide areas fat, and narrow areas thin. The system is implemented as a Java(tm) program, and the mesh construction is done in real-time on a standard PC. An informal user study showed that a first-time user typically masters the operations within 10 minutes, and can construct interesting 3D models within minutes.
摘要:
A dielectric ceramic composition having (1) 100 parts by weight of a main component represented by compositional formula: {BaO}.sub.m .multidot.TiO.sub.2 +.alpha.Re.sub.2 O.sub.3 +.beta.MnO wherein Re.sub.2 O.sub.3 is at least one of Eu.sub.2 O.sub.3, Gd.sub.2 O.sub.3, Tb.sub.2 O.sub.3, Dy.sub.2 O.sub.3, Ho.sub.2 O.sub.3, Er.sub.2 O.sub.3, Tm.sub.2 O.sub.3, and Yb.sub.2 O.sub.3 ; 0.0005.ltoreq..alpha..ltoreq.0.027; 0.001.ltoreq..beta..ltoreq.0.054; .beta./.alpha..ltoreq.5; and 1.000
摘要翻译:具有(1)100重量份由组成式{BaO} m×TiO 2 +αRe 2 O 3 +βMnO其中的Re 2 O 3表示的主要成分为100重量份的电介质陶瓷组合物是Eu 2 O 3,Gd 2 O 3,Tb 2 O 3,Dy 2 O 3,Ho 2 O 3,Er 2 O 3, Yb2O3; 0.0005 =α = 0.027; 0.001 = beta = 0.054; β/α = 5; 和1.000
摘要:
An improved electric discharge machine with a numerical control unit includes an electrode configuration sensor in a machining vessel for detecting the configuration of a machining electrode before an electric discharge machining operation is conducted. According to one aspect of the invention, the electric discharge machining operation is performed while electrical discharge machining conditions are being automatically selected so as to permit the most suitable machining conditions for the electric discharge machining operation to be carried out with respect to the electrode whose configuration has been detected. According to another aspect of the invention, troublesome operations for setting the electrical conditions corresponding to the electrical discharge machining operation are eliminated.
摘要:
The machine has a rotary device for holding and rotating a workpiece to be processed, an electrode disposed to oppose the workpiece, an indexing device for holding the electrode and indexing the electrode at a predetermined angular pitch, a power supply device for applying a voltage between the workpiece and the electrode so as to cause the electric discharge therebetween, and a cutting device for cutting a portion of the electrode which has been used for the electric discharge and has been indexed by the indexing device to face the cutting device. The consumed portions of the electrode are successively indexed to the position where the cutting device is set so that the consumed portion of the electrode is successively cut without requiring the processing to be stopped.