摘要:
An engine cylinder head includes an internal metal structure forming an upper portion of a combustion chamber. The internal metal structure includes a semi-compliant coating configured to absorb thermal expansion of the internal metal structure. The engine cylinder head also includes a polymer composite forming an external structure at least partially surrounding the internal metal structure.
摘要:
An organic/inorganic composite is provided. The organic/inorganic composite materials are sufficiently hard and brittle to be ground to form particles suitable for biological or chemical separation applications. The organic/inorganic composite materials can be magnetic or magnetically susceptible and can have functional reactive groups to allow attachment of biomolecules. Methods of making and using the organic/inorganic composites are also provided.
摘要:
First and second aircraft structures are bonded together with an adhesive including strain-sensitive magnetostrictive material. The magnetostrictive material has a magnetomechanical coefficient greater than e−5.
摘要:
An isolator mount capable of dissipating shocks and vibrations is presented. The present invention includes a mount which is load bearing and capable of withstanding repeated deflections and strains, at least two damping layers composed of an energy damping viscoelastic polymer, and at least two constraining layers composed of an energy damping alloy. Each layer of energy damping viscoelastic polymer is separately disposed and bonded to the exterior of the mount. One constraining layer is bonded to and substantially covers each damping layer. Damping and constraining layers minimize the stiffness change to the mount.
摘要:
To provide the manufacturing method for the friction material products which does not require the special molding die and realizes the significant simplification of the molding step while maintaining the quality of the friction material. The manufacturing method for the friction material products comprising the molding step of pressurizing and heating to mold the molding material made of the raw friction material within the molding die, wherein the molding temperature in the molding step is 190° C.-230° C. and the pressure thereof is 100 MPa-200 MPa.
摘要:
The present invention offers a production method for anisotropic resin-bonded magnets with precise dimensions in high productivity. It comprises the aligning step in which the preform is preliminary compression-molded in the preforming molding die 22 in the preforming press 20 with an applied magnetic field to align the magnetization direction of the magnet powder at a temperature in which the thermosetting resin in the compound becomes liquid state, the transferring step in which said preform is transferred from preforming press 20 to densifying molding die 32 in a densifying press 30, and densifying step in which said partly cured preform is compression-molded by applying pressure in a densifying press 30 to obtain desired shape of magnet.
摘要:
A process for manufacturing a metallic powder molded article comprising the steps of preparing a mixture of inflammable metallic powders and synthetic resin and molding under pressure and heat the mixture to form a molded body. Pressure and heat are applied such as by buffing onto a surface of the molded body to deform and bond together the metallic powders on the molded body surface to form a substantially continuous metallic surface. A plated layer may be applied on the continuous metallic surface. The process manufactures a metallic powder molded article comprising a molded body of a mixture of inflammable metallic powders and synthetic resin having a substantially continuous metallic surface defined by the metallic powders compacted and bonded together.
摘要:
An improved rigid, porous product and process for making such product are disclosed. The product comprises a particulate material bound by a thermosetting resin and characterized by uniformly distributed and interconnecting porosity. The body initially is made by isostatic pressing of a mixture of the particulate material and resin and, inter alia, the cured body is suitable for use as a die, mold or filtering device.
摘要:
A plastic molding composition includes a raw powder, gelatin, a polar solvent, and a plasticizer. The raw powder contains at least one of a ceramic particle and a metal particle. The plasticizer reduces the minimum amount of the solvent necessary to give flowability to the composition. The plasticizer is a water-soluble or water-dispersible compound. The plasticizer has a ratio of hydroxyl number to carbon number per molecule in a range from 8% to 100%. The plasticizer is in solid or liquid form. When the plasticizer is in liquid form, the plasticizer has volatility equal to or lower than volatility of water.
摘要:
A process for altering the properties of extruded tubing by applying a solid particulate material to a tacky outer surface of the tubing as the tubing exists the extrusion head or die and prior to the tubing entering a cooling system of the extrusion line. The particulate material may act as a tie layer to improve the adherence of a second material to the outer surface of the extruded tubing, thus altering the tensile strength, elongation, and/or stiffness properties of the extruded tubing. In addition, the application of particulate material may be chosen to provide radiopacity to the extruded tubing. The solid particulate material may be deposited on the extruded tubing by vacuum deposition, magnetism, or pressurized means.