摘要:
A composite substrate includes a supporting substrate and a functional substrate that are directly joined together, the supporting substrate being a sintered sialon body.
摘要:
The invention comprises a concrete form. The concrete form comprises a first panel having a first primary surface for contacting plastic concrete and a second primary surface opposite the first surface, wherein the first panel is made from a rigid plastic sheet or a metal sheet; and a second panel spaced from the second primary surface of the first panel, wherein the second panel is made from a rigid plastic sheet or a metal sheet. The concrete form also comprises a layer of insulating material disposed between the first panel and the second panel. A method of using the concrete form is also disclosed.
摘要:
An article comprising a) a die core having a plurality of flow paths adapted to flow extrudable material to a plurality of slots including wall slots and skin slots and around a plurality of pins so as to form a honeycomb structure from the extrudable material; and b) a mounting plate adapted to hold the die core in an extrusion system having an opening adapted to allow the extrudable material passed through the die core to exit, an outer portion adapted to mount and hold the die core in place, a flange about the periphery of the opening which seats the die core, an inner surface disposed to partially form the skin slots adapted to allow extrudable material to flow from the skin slots to form the skin of the honeycomb structure; and wherein the die core and mounting plate are comprised of different materials having different wear properties.
摘要:
Method for producing ceramic components, more particularly ceramic components having recesses and/or hollow spaces, there being at least one sintered ceramic part present. In order to improve the handling qualities of ceramic components, the sintered ceramic part can include a carrier or carrying section which is removed in the further processing from at least one ceramic component.
摘要:
A method for producing a concrete shaft bottom which comprises a drain having a defined shape. Concrete is introduced into a bottom mold that comprises a mold jacket and a mold bottom. On the mold bottom, a molded body forming the negative shape of the drain is disposed to configure the drain. The invention allows for the inexpensive and mechanized production of a shaft bottom having an individual drain. For this purpose, the molded body is configured from at least one molded piece that is fixed on the bottom mold, especially on the mold bottom. The molded piece is adapted to the dimensions of the defined shape of the drain and is removed from the shaft bottom once or while the formwork is dismantled from the shaft bottom.
摘要:
The invention relates to a method for producing a concrete shaft bottom which comprises a drain having a defined shape. According to said method, concrete is introduced into a bottom mold (1) that comprises a mold jacket (2) and a mold bottom (3). On said mold bottom (3), a molded body (8) forming the negative shape of the drain is disposed to configure the drain. The aim of the invention is to allow for the inexpensive and mechanized production of a shaft bottom having an individual drain. For this purpose, the molded body (8) is configured from at least one molded piece (9) that is fixed on the bottom mold (1), especially on the mold bottom (3). The molded piece (9) is adapted to the dimensions of the defined shape of the drain and is removed from the shaft bottom once or while the formwork is dismantled from the shaft bottom.
摘要:
The invention relates to a method and a device for producing a structure made up of at least two bodies in a cavity of a mold defining the structure.
摘要:
A device including an injection molding tool for use once or a few times for producing a sinterable ceramic and/or metallic product. The device includes at least one first tool part. At least one second tool part is combinable with the at least one first tool part to form a molding space for the product. The second tool part is produced using a wet composition and is made of a readily worked and form-stable material containing pores and admixed heat-conducting particles. A wet composition-enclosing member can engage the first tool part during the production of the second tool part. A unit can be connected to the at least one second tool part and can be arranged with the at least one first tool part for absorbing internal lateral displacement forces arising during squeezing or injection of an injection molding composition. The injection molding tool is adapted to receive an injection molding composition containing a ceramic and/or metallic powder that is introduced into the molding tool with low or medium pressure for forming the product. The pores and the admixed heat-conducting particles conduct away heat generated during the molding and gas trapped in the molding space. The pores also provide a well-balanced porosity for effecting conduction of the gas and, together with a flexibility in the solidified injection molding composition, permit the product to be separated from the tool parts without braking.
摘要:
A method of decorating concrete including the steps of mixing water, aggregate and cement to provide mortar, pouring the mortar into a form and allowing it to cure and harden into a concrete block having an exterior surface, and applying sulfate to a selected portion of the block to color the surface of the block to a predetermined depth while the mortar is being cured.
摘要:
A method of providing fastener holes in extremely hard ceramic armor comprises the steps of:(a) providing a billet of precompacted ceramic powder material;(b) drilling the desired holes in the billet;(c) preparing a plug of non-sintering material that is chemically compatible with and has compaction characteristics similar to the ceramic powder material;(d) pressing the plugs into the billet holes;(e) hot pressing the billet and plugs at conventional temperature and pressure for manufacture of a ceramic armor structure, and;(f) removing plugs by conventional tooling or sandblasting.