摘要:
A method of making a gypsum board includes mixing together gypsum and water in a mixer to form a gypsum slurry; discharging the gypsum slurry onto a first facing sheet; laying a second facing sheet on top of the discharged gypsum slurry; passing the gypsum slurry and facing sheets through a forming station to form the slurry to a desired thickness; allowing the formed gypsum slurry to set; removing at least one of the facing sheets from the set gypsum; cutting the set gypsum into boards; and drying the cut gypsum boards.
摘要:
A method for manufacturing an electrostatic chuck is disclosed wherein a sintered ceramic body having a dielectric layer made from Alumina (Al2O2) and Titanium Nitride (TiN) having a specific range of particle size is heat treated in an oxygen-rich environment in order to produce a uniform dielectric layer having no pores or micro-cracks.
摘要翻译:公开了一种用于制造静电卡盘的方法,其中在富氧环境中对具有特定粒度范围的氧化铝(Al 2 O 2)和氮化钛(TiN)制成的电介质层的烧结陶瓷体进行热处理,以便产生 没有孔或微裂纹的均匀介电层。
摘要:
Amorphous sheets of PLA resins are thermoformed by heating the sheets until they become semicrystalline, and then forming the sheets on a relatively cold mold. Semicystalline formed articles having improved heat resistance are made by the process.
摘要:
A method of making a permeable fiber-reinforced ceramic body comprising mixing an organic particulate with silica fiber, alumina fiber, alumina borosilicate fiber, a dispersant, and water to produce a slurry of fibrous ceramic material. The slurry is then placed within a mold and vaccuum pressure is applied thereto to substantially remove the water to form a fibrous ceramic body. The fibrous ceramic body is then dried and sintered to a temperature sufficient to bond the ceramic material together to form a porous ceramic article. Simultaneously, the fibrous ceramic body is heated to a temperature sufficient to generally burn off the organic particulate to create voids interconnecting the pores to form a permeable fiber reinforced porous ceramic article.
摘要:
A stamper for forming a data recording region on a recording medium substrate by means of a transfer surface thereof. The transfer surface transfers a predetermined set of data to the recording medium substrate. The stamper is fitted on at least one of metal molds that are arranged opposite one another for forming the recording medium substrate. The stamper includes a stepped portion formed as bends in the material of the stamper. The stepped portion is configured to project from the transfer surface toward the recording medium substrate.
摘要:
The present invention provides a production process of a hexagonal honeycomb structure having low deformation of hexagonal cells. This process comprises an extrusion step for obtaining moldings (7) in which partitions (71) are provided in the form of a hexagonal matrix by extrusion molding of a mixed raw material using a horizontal extruder having an extrusion die provided with slits in the form of a hexagonal matrix and in which the direction of extruding is substantially the horizontal direction, a drying step for drying moldings (7), and a baking step for baking moldings (7). The extrusion step is performed such that c axis (700) parallel to two parallel sides (702) and (705) of the six sides (701) through (706) of each hexagon formed by partitions (71) of extruded moldings (7) is substantially vertical relative to the horizontal plane.
摘要:
A method and apparatus for efficiently forming individual building units is provided, generally includes providing a plurality of molds, each capable of simultaneously forming a plurality of building units. Batches of cementitious slurry are individually mixed in order to control the density of each building unit formed. The ingredients are individually measured and combined into the mixing device. The cementitious slurry is then conveyed or transported and poured into one of the molds. The method provides the ability to control the amount of cementitious slurry in each batch in order to control to the extent possible the quantity of cementitious slurry poured into each mold and the ability to precisely control the dimensions of each building unit produced.
摘要:
A method of making an inert anode (12null) for use in an electrochemical cell first provides a hollow shaped mold (12) where a metal mandrel (17) having raised male threads (50) at its top diameter (52) is inserted into the mold (12) and a compressible powder (19, 21) added, then the powder is compressed to form recessed female grooves (70) matching the mandrel threads (50) where the mandrel (17null) is engaged and withdrawn along with the compressed powder inert anode after which the mandrel is rotated to unscrew it from the compressed powder and the compressed powder shape is then placed on a tray (27) and heated to sintering temperature.
摘要:
This invention discloses a new technology related to cellulose fiber reinforced cement composite materials using cellulose fibers that are treated with inorganic and/or organic resins to make the fibers more hydrophobic, as well as other chemical treatments. This invention discloses four aspects of the technology: fiber treatment, formulations, methods and the final product. This technology advantageously provides fiber cement building materials with the desirable characteristics of reduced water absorption, reduced rate of water absorption, lower water migration, and lower water permeability. This invention also impart the final products improved freeze-thaw resistance, reduced efflorescence, and improved rot and UV resistances, compared to conventional fiber cement products. These improved attributes are gained without loss in dimensional stability, strength, strain or toughness. In some cases the physical and mechanical properties are improved. This invention also discloses the method of treating cellulose fibers with various chemicals to impart the fiber hydrophobicity for applications in the fiber reinforced cement composite materials.
摘要:
An infrared optical element, and methods for its manufacture. The optical element is made by cold working an ingot of a soft crystalline ionic solid such as silver halide or a thallium halide inside a sacrificial split die. The solid preferably includes at most one part per million of metallic impurities and at most ten parts per million total impurities. Preferably, the Knoop hardness of the ionic solid is at most about 20, and the elongation ratio of the ionic solid is at least 10% at a temperature of 120-180null C. The optical element maybe a bulk element or a surface element. The optical element may be a refractive element, a diffractive element or a hybrid element. One such element is a flat sensor for attenuated total reflection spectroscopy. In one embodiment of the sensor, a thin layer of silver halide or thallium halide is formed by diffusion or deposition on the surface of a substrate having a lower index of refraction than the layer. The sensor also includes a mechanism for coupling infrared radiation in and out of the layer. The scope of the invention includes a cell for attenuated total reflection spectroscopy based on the sensor, and a spectrometer for attenuated total reflection spectroscopy based on the cell. It also includes an external sensor, which is connected to the spectrometer via two long infrared fibers, which enable measurements in remote locations.