47 results about "Material Protrusion" patented technology

According to the present invention, a multilayer tablet showing suppressed layer separation and a production method thereof are provided. A concave portion having a depth of not less than 0.1 mm Ka is formed on at least one surface Sa of the both front and back surfaces (Sa, Sb) of a multilayer tablet. Particularly, a multilayer structure obtained by, in tableting, forming a convex portion for forming the concave portion on at least the upper punch, and preliminarily compressing all layers in the multilayer tablet with the upper punch to form a concave portion having the same shape with a depth of not less than 0.1 mm on the upper surface of all layers, wherein the powder materials of the next layer are protruding into the concave portion, is a preferable embodiment.

The tips of gas turbine engine turbine rotor blades are provided with an abrasive layer and the abrasive layer comprises chromised silicon carbide grit protruding from a layer of material. In particular the abrasive layer comprises a mixture of cubic boron nitride grit and chromised silicon carbide grit and the cubic boron nitride grit and the chromised silicon carbide grit protruding from the layer of material. The cubic boron nitride grit has a greater dimension than the chromised silicon carbide grit. The cubic boron nitride grit cuts the majority of a track in an abradable structure and then the chromised silicon carbide grit provides any additional cutting of the abradable structure.

The present invention provides a ballast circuit and method for fabricating the same for multi-electrode corona discharge arrays. The circuit comprises a conductive plastic material and at least one corona electrode protruding from the conductive plastic material. The distance between the plastic material and the corona electrode varies and controls the electrical resistance and determines the voltage breakdown of the circuit. Additionally, a particle collection surface may preferably be located within the conductive plastic material or preferably be separated from the material depending on the circuit design and configuration.

Disclosed herein is a transparent optical film, including an optically structured layer, which is a sheet formed of a transparent polymeric material and composed of a first surface having three-dimensional structures thereon and a second surface opposite the first surface, and a damage prevention layer formed on the second surface of the optically structured layer and composed of a transparent polymeric material and spherical organic or inorganic particles. The damage prevention layer has protruding surface portions formed by the particles protruding from the transparent polymeric material. The optical film of the current invention is advantageous because the prism structure and the opposite surface of the optical film are prevented from damage due to external impact, vibration and friction, and the attachment of impurities due to frictional static charges is prevented. Further, the front luminance and optical properties of the optical film are improved.

This method of forming a carbonaceous material projection structure includes: the step of applying a resist 11 onto a diamond substrate 10; the step of forming holes 12 in the applied resist 11, the holes 12 being provided according to a predetermined arrangement, a wall 12b of each of the holes 12 being inversely tapered from an aperture 12a toward a bottom; the step of depositing a mask material through the aperture 12a to form a mask deposition 14 in each of the holes 12; the step of lifting off a mask material 13 deposited on the resist 11 together with the resist 11; and etching the diamond substrate 10 using the mask deposition 14 as a mask to form a carbonaceous material projection.

The invention relates to a metallic heat exchanger tube with fins which run helically around the outside of the tube, are molded integrally therefrom and are of continuous design and the fin base of which protrudes substantially radially from the tube wall, and with primary grooves located between respectively adjacent fins. At least one undercut secondary groove is arranged in the region of the groove base of the primary grooves. Said secondary groove is delimited toward the primary groove by a pair of mutually opposite material projections formed from material of respectively adjacent fin bases. Said material projections extend continuously along the primary groove. The cross section of the secondary groove is varied at regular intervals without having an influence on the shape of the fins. There is a spacing between the opposite material projections, said spacing being varied at regular intervals, as a result of which local cavities are formed.

The invention relates to a soldering process capable of regulating and controlling the grain orientation and structure of a tin soldered joint. The soldering process comprises the following steps thatfirstly, a layer of single crystal metal material is deposited at the position of each bonding pad of a PCB with a physical or chemical or electrochemical method or single crystal metal material protrusion points are grown on the surface of a wafer; secondly, oxides and organic contaminants on the surface of the single crystal metal material are removed; thirdly, tin-based soldering flux is soldered to the single crystal metal material with a brazing technology, and then the tin soldered joint with the specific grain orientation and structure is obtained. Since the grain orientation and structure of the tin soldered joint are effectively controlled, the reliability of the tin soldered joint can be greatly improved.

The invention relates to a device and a method for testing influence of different metal materials on SF6 local sudden discharge fault decomposing. The device comprises a pressurizing system, an SF6 discharging gas chamber, a detection system and a metal material protrusion defect model, wherein the output end of the pressurizing system is connected with the metal material protrusion defect model; the metal material protrusion defect model is arranged in the discharging gas chamber, and the detection system is simultaneously connected with the discharging gas chamber and the pressurizing system. The device and the method have the beneficial effects that the cost is low, and the testing method is simple and is suitable for being popularized; the spark discharge fault state caused by different metal protrusion defects in the SF6 electrical insulation equipment can be well simulated; the blank of failure to evaluate the influence of different metal materials on SF6 spark discharging decomposing in the existing test equipment and method for detecting the SF6 decomposing gas component to evaluate the SF6 insulation electrical equipment state is filled; the possibility is created for verifying the influence characteristic and action mechanism of the metal materials on the SF6 spark discharging decomposing.

Provided is a protection type precise setting-out position finder. The position finder comprises a horizontal base of which the upper portion is provided with a bearing base, the bearing base is coordinated with a wall through a flange, and the upper portion of the wall is provided with an iron plate; the structure that the upper portion of the wall is provided with the iron plate is achieved by connecting the wall and the iron plate through a connecting piece, a first connecting piece and a third connecting piece are arranged oppositely, a notch-shaped connecting opening is formed in a second connecting piece, and the bottom wall of the connecting opening faces the direction far from the first connecting piece; the upper portion of the outer wall of the bottom of a square box is integrally connected to an iron material protrusion, the iron material protrusion is located outside the top of the iron plate, and the lower portion of the outer wall of the bottom of the square box is attached to a rubber sheet through viscose glue; a notch is formed in the top wall of the top of the iron plate, and the connecting opening is formed in the side wall in the connecting opening. Through the protection type precise setting-out position finder, the defects in the prior art that the effects of connecting and erecting are lost, the complication of mounting is improved, thus the maintenance becomes difficult, and the fixing and connecting method is always not stable enough caused by a connecting piece are reduced.

The invention concerns a method of producing a mixed substrate, that is to say a substrate comprising at least one block of material different from the material of the substrate, the method comprising the following successive steps:

• • formation of a cavity in a substrate of first material, and from one of its faces, the formation of the cavity being carried out so as to leave at least part of the first material projecting from the bottom of the cavity,
  • formation of the block by means of a reaction, initiated from the walls of the cavity, between the first material and at least one chemical element contributed in order to obtain a second material filling the cavity, the formation of the block being carried out so as to obtain, from the part of the first material projecting, a protrusion of second material projecting on said face of the substrate.

Provided is a three-dimensional culture structure that is excellent in cell adhesion and cell stretching and can be produced efficiently. The three-dimensional culture structure includes cells, a cell support material configured to support the cells, and bioaffinity particles. In a preferable mode, the bioaffinity particles are exposed from at least part of the surface of the cell support material, or the bioaffinity particles are protruded from the cell support material, or a surface area occupation rate at which the bioaffinity particles are exposed is 20% or greater of the entire surface of the three-dimensional culture structure, or the bioaffinity particles are dispersed in the cell support material.

The invention provides waterproof, oil-proof and flame-retardant fabric, belongs to the technical field of textile products, and solves the problem that existing fabric is poor in waterproof and fireproof performance. The waterproof, oil-proof and flame-retardant fabric comprises a breathable water-absorption layer, a fireproof layer and a waterproof layer which are sequentially arranged from bottom to top, wherein a plurality of breathable cavities are formed in the breathable water-absorption layer, and a plurality of micrometer-material protrusions are arranged in the waterproof layer. The fabric further comprises breathable grooves which sequentially penetrate the waterproof layer and the fireproof layer from top to bottom, and the breathable grooves are located in gaps among the micrometer-material protrusions and communicated with the breathable cavities. The fabric has the advantages that the fabric is good in waterproof and fireproof performance and breathability, and the micrometer-material protrusions can reduce greasy-dirt adhesion to achieve an oil-proof effect.

The invention relates to a manufacturing installation (1) for the additive manufacturing of components (3), each (3) provided with at least one material overhang (2), has at least one building platform (4) on which the particular component (3) can at least partially be additively manufactured. In order to reduce the material consumption and the time to produce additively manufactured components (3), the manufacturing installation (1) has at least one preferably electrically controllable support device (5) with at least one movable support arm (6) for the at least temporary holding of at leastone support element (7,11,12,13,14), arranged on the support arm (6), during the additive manufacture of the particular component above the building platform.