72 results about "Ideal surface" patented technology

A turbine airfoil with a relatively thick TBC applied over the airfoil surface. The airfoil has a surface contour on the trailing edge region with a forward end having a large amount of taper and a rearward end with less taper such that a substantially constant wall thickness is formed in the rearward end. The TBC is applied over the airfoil surface and tapers off at the trailing edge ends on the pressure side and the suction side walls to produce an ideal surface contour on the airfoil. In another embodiment, the airfoil surface includes a tapered section at the trailing edge region, and the TBC is applied over the taper so that an over-coating is formed. The TBC over-coating is then removed and a smooth and ideal surface contour is produced along the airfoil surface. Small raised bumps each having a height of the desired thickness of the TBC to be applied over the respective bump is used to control the finished thickness of the TBC.

The invention relates to a full polyester Soft fleece blanket and a processing method thereof, which pertains to the technical field of polyester fiber products and the processing thereof. The fleece blanket comprises fleece yarns and ground yarns; the raw material used by the fleece yarns is DTY yarns of 111dtex to 167dtex, while the raw material used by the ground yarns is FDY yarns of 55dtex to 167dtex, wherein, the DTY yarns account for 50 percent to 80 percent in the blanket according to mass percentage, while the FDY yarns account for 50 percent to 20 percent in the blanket according to the mass percentage. The invention has the advantages that: the raw materials are chosen reasonably; the crystal structure of fibers is changed by carrying out elasticizing modification to the DTY yarns serving as the fleece yarns by POY yarns, thereby getting rid of chemical finishing agents used in the prior art; in addition, pre-shaping, surface lustre finishing and then dyeing or printing are carried out after slitting, thus causing the surface of the obtained blanket to have more ideal surface flatness, smoothness and elasticity than coral fleece blankets.

An appliance fabricated to improve the appearance of a patient's smile includes a plurality of simulated teeth. The interior surfaces of each of the teeth closely fits and conforms to the surface of a patient's real teeth while the outer surfaces of each of the simulated teeth has an ideal surface configuration. The dental appliance provides the patient with the appearance of a perfect set of teeth and an ideal smile without a need to alter the dental structure of the patient's teeth.

The invention relates to a phase measurement deflection method for aspheric surface detection. On the basis of a geometric principle of Ronchi test, a reverse optical path analysis is carried out on an improved phase measurement deflection detection method for an aspheric surface so as to obtain a deviation gradient of a to-be-detected mirror surface relative to an ideal surface shape; and integrating processing is carried out on the gradient to recover the deviation of the to-be-detected mirror surface and thus the to-be-detected mirror surface is reconstructed, so that non-contact full-field detection is carried out on the aspheric surface. With the method, a problem that incident light is obtained by display screen moving, calibration or approximation during the existing phase measurement deflection process or Ronchi testing and thus aspheric surface detection becomes inconvenient.

The invention discloses a brittle material grinding process simulation method, belongs to the field of micro-nano ultraprecision machining numeric simulation, and relates to a three-dimensional micro-nano single grain grinding simulation method based on a smoothed particle hydrodynamics method. The method comprises the steps of firstly setting the sizes of a grinding grain and a machined material; secondly, building a three-dimensional single grinding grain finite element model in ANSYS, building an SPH model of a workpiece material in LS-PrePost, setting related model parameters, and performing calculation in LS-DYNA; and finally, analyzing a simulation result. According to the simulation method, data such as a stress, a strain, density and the like in the grinding process can be obtained more clearly and accurately; a brittle material is removed in a plastic region by controlling a processing depth, and a damage mechanism of the brittle material is analyzed, so that relatively ideal surface quality is obtained; and a large amount of labor costs, experimental costs and economic costs are reduced and the difficult problem of difficult online observation of an experimental method is avoided.

An active thermal mattress assembly having a plurality of sensors disposed within the active thermal mattress assembly, wherein at least one of the plurality of sensors monitors a surface temperature of the active thermal mattress assembly. The active thermal mattress assembly also including a temperature control system disposed within the active thermal mattress assembly and a processor disposed within the active thermal mattress assembly. The processor receives signals from each of the plurality of sensors and responsively controls an operation of the temperature control system to maintain an ideal surface temperature of the active thermal mattress assembly.

The invention relates to a preparation method for a 429 stainless steel composite coating sprayed on a magnesium alloy surface. The preparation method comprises the steps that 95-40wt% of 420 stainless steel powder and 5-60wt% of hard reinforcement phase material powder according to a powder mixing ratio; the above two kinds of powder are placed in a mechanical material mixing machine to be mixed so that coating powder is prepared; the magnesium alloy base material surface is sequentially subjected to acetone cleaning and sand-blasting roughening treatment; the coating powder is arranged in a powder conveying device of cold-spraying equipment; then a magnesium alloy base material is fixed on a spraying clamp, and the 420 stainless steel composite coating is manufactured on the magnesium alloy base material surface with a cold-spraying technique; and the hard reinforcement phase material is one or more of SiC, Al2O3, TiC, WC-12Co, WC-17Co, WC-CoCr, WC-NiCr. The preparation method is simple in technique; thermal influence on the magnesium alloy base material is small by adopting the cold-spraying technique; the prepared composite coating is combined with the base body firmly; the structure is compact and uniform; the coating has good corrosion-resistance and abrasion-resistance, and is an ideal surface reinforcement coating for surfaces of the magnesium alloy and components of the magnesium alloy.

The invention discloses an aspheric optical element surface shape detection device. Based on prior interference method surface shape detection devices, the aspheric optical element surface shape detection device realizes the measurement of the light intensities of detection light waves and reference light waves by additionally arranging two controllable optical stops and can acquire phase shift interference fringes by additionally arranging piezoelectric ceramics. An aspheric surface shape measurement software package can conveniently acquire a phase offset between the surface shape and an ideal surface shape of an aspheric optical element to be detected by computing the phase offset between the surface shape to be detected and a standard surface shape of the aspheric optical element to bedetected and the phase offset between the ideal surface shape and the standard surface shape of the aspheric optical element to be detected. Therefore, the aspheric optical element surface shape detection device can effectively solve the surface shape detection problem of aspheric optical elements with large offset without a practical processing computed hologram, thereby reducing detection cost,shortening detection cycle and improving detection accuracy.

The invention discloses a four-dimensional ice skate sharpening device, which is characterized in that a bracket (2) and a moving platform (8) are connected through three moving branched chains (5, 6, 7) with same structures; in the moving branched chains, four connecting rods (14, 15, 16, 21) are connected with four rotating pairs to form a parallelogram mechanism respectively; the connecting rod (14) is connected with the moving platform (8) through a first rotating pair (13), the connecting rod (16) is connected with a connecting plate (17) fixedly connected with the front end of a guide bar (18) through a second rotating pair (20), and the connecting plate (17) is connected with a push rod of a linear motor (19); and an angle control motor (9) is arranged on the moving platform (8), an oil stone support (4) is connected with an output shaft of the angle control motor (9), and an oil stone or an emery stick (3) is arranged on the oil stone support (4). Through the driving of the three linear motors (19) on the three moving branched chains (5, 6, 7) and the angle control motor (9) arranged on the moving platform (8), three-dimensional movement and one-dimensional rotation of the oil stone or the emery stick (3) can be achieved. The four-dimensional ice skate sharpening device has the advantages of concise structure, good manufacturability for machining and assembling, and the like, and can obtain ideal surface roughness of the ice skate edge and crossing surface texture.

The invention provides a composite heat treatment method and relates to a metal material carburizing and nitriding composite heat treatment process method. By the composite heat treatment method provided by the invention, the depth of a metal heat treatment permeating layer is improved; deformation is reduced; advantages of various processes are organically combined and completely exerted; the defects of the processes are overcome; and high using performance of metal is achieved. The composite heat treatment method comprises the following steps of: heating a workpiece to an austenite state and performing carburizing or carbonitriding to obtain an ideal permeating layer; cooling the permeating layer in a furnace to the austenite nitriding temperature of between 640 and 720 DEG C and performing nitriding or carbonitriding, so that the nitrogen concentration of the austenite on the surface layer of the workpiece is increased to that of the austenite nitriding layer; and directly quenching at the temperature of about 800 DEG C and performing aging treatment in the range of 300 DGE C, or directly performing isothermal quenching at the temperature of between 200 and 240 DEG C, so that the high-nitrogen austenite is decomposed and ideal surface hardness and wear resistance of the meal are achieved.

The invention provides a cutting process simulation process for brittle materials, belongs to the field of micro-nano ultraprecision machining numerical simulation and relates to a three-dimensional micro-nano cutting machining simulation method based on an SPH (smoothed particle hydrodynamics) method. According to the simulation method, dimensions of a cutter and a workpiece material are set firstly; then a three-dimensional cutter finite element model is established in ANSYS, an SPH model of the workpiece material is established in LS-PrePost, parameters of contact, boundary, the material and the like are set, and calculation is performed in LS-DYNA; finally, a simulation result is analyzed, and whether the result meets the actual machining condition is judged. The simulation method has the advantages that data including stress, strain, density and the like in a cutting machining process can be obtained more clearly and more accurately, the brittle materials are removed from a ductile region through control of cutting depth, and acquisition of more ideal surface quality is more facilitated. A large quantity of labor cost, experimental cost and economic cost is saved, and the problem of on-line observation difficulty of an experimental method is solved.

In one embodiment, a method for molding a molded-in-color panel in a mold includes providing a mold having a first mold member and a second mold member. One of the first mold member and the second mold member has an appearance portion forming surface and the other of the first mold member and the second mold member has a concealed portion forming surface corresponding with the appearance portion forming surface. The concealed portion forming surface forms a concealed portion of a panel and is free of any protuberances and ancillary structural members for facilitating ideal surface characteristics of an appearance portion of the panel. Molded-in-color resin is injected in the mold and cooled to form a molded-in-color panel. At least one ancillary structural member is welded to the concealed portion of the panel.

The invention provides a generative fining characterization method for a part key technology surface. The method includes the first step of carrying out meshing on the surface to form a discrete point assembly and generating a new discrete point assembly with random deviation according to profile tolerance demands, the second step of carrying out interpolation on the discrete point assembly to form a spline surface in order to form an example with contour errors on an ideal surface, the third step of continuing to carry out high-density meshing on the surface of the contour errors to form a discrete point assembly and generating a new discrete point assembly with random deviation according to roughness demands, the fourth step of continuing to carrying out interpolation on the discrete point assembly to form a spline surface in order to form a fining characterization example with manufacturing errors on the surface of a part, and the fifth step of utilizing the new fining surface to replace an original surface on a part nominal model to form a new example with the manufacturing errors on an original part model. A part example set with the manufacturing errors can be reestablished repeatedly by repeating the steps, and the examples can reflect the actual engineering state of the part key technology surface on the whole. The generative fining characterization method has the advantages of being efficient, accurate and low in cost.

The invention relates to a titanium/aluminum solid-liquid composite casting forming method, and belongs to the field of material processing engineering. The method is to prepare an aluminum-encapsulated titanium casting by placing solid titanium alloy in aluminum alloy melt, and a laboratory preparation technology comprises the following implementation steps of (1) obtaining a titanium alloy bar with a 3mm to 30mm diameter in a processing way, and turning and polishing the aluminum alloy bar for an ideal surface roughness; (2) chemically cleaning the surface of the prefabricated titanium bar to remove greasy dirt and oxides on the surface; (3) smelting the aluminum melt in a corundum crucible by adopting a pit type resistance furnace; (4) inserting the titanium bar which is previously completely processed into the melt at the temperature of 670 DEG C to 840 DEG C; (5) implementing heat preservation in the pit type furnace for 5 minutes to 15 hours, then taking the titanium bar out, and cooling the titanium bar in air to a room temperature. According to the titanium/aluminum solid-liquid composite casting forming method, the metallurgical bonding between pure titanium and pure aluminum, between titanium alloy and pure aluminum and between titanium alloy and aluminum alloy is realized by a solid-liquid composite casting method; an obtained composite casting is integrated with the characteristics i.e. lightness and corrosion resistance of titanium alloy and aluminum alloy, and has the performances, i.e. high strength and high toughness of the titanium alloy and easy heat transfer, electric conduction and the like of the aluminum alloy.

The invention discloses a dry etching machine table and an application method thereof, which belongs to the technical field of display and can be used for solving the technical problem of non-ideal surface temperature uniformity of a substrate during dry etching process. The dry etching machine table comprises a sealed process cavity for dry etching on the substrate, an upper-part electrode, a lower-part electrode, a plurality of temperature sensors and a cooling controller are arranged in the process cavity, the upper-part electrode is arranged at the top of the cavity, the lower-part electrode is arranged at the bottom of the cavity and is opposite to the upper-part electrode, the plurality of temperature sensors are arranged on the upper surface of the lower-part electrode, the cooling controller comprises a plurality of gas nozzles and a processor, one of the gas nozzles is arranged near each temperature sensor, when the substrate is placed on the lower-part electrode, the temperature sensors contact the lower surface of the substrate and are used for detecting the temperature of the substrate at the position where the temperature sensors are located and transmitting temperature values of the detected substrate to the cooling controller, and the processor of the cooling controller is used for controlling gas flow of each gas nozzle according to the temperature value detected by each temperature sensor at the same time.

An aqueous crackle paint is prepared by using an aqueous crackle primer, an aqueous crackle finish and an aqueous enamel through a coating technology, the primer and the finish form a crackle shape, and the enamel has color modification and crackle effect finish protection effects. The above three coatings use aqueous acrylic resin as a main body resin of a film and contain methylated melamine formaldehyde resin as a high temperature crosslinking agent, aqueous CAB and parts of an alcoholic solvent are introduced to a formula system in order to achieve an ideal surface drying speed, and fumed silica, talcum powder and other high oil absorbing fillers are used to adjust the critical PVC concentration of the formula system and adjust the shrinkage stress of the film. The coating technology of the aqueous crackle paint comprises the following steps: spring the aqueous crackle primer, carrying out surface drying at normal temperature for 5min, spraying the aqueous crackle finish, carrying out constant temperature treatment at 150DEG C for 20min, spraying the aqueous crackle enamel, and carrying out constant temperature treatment at 150DEG C for 20min to obtain the aqueous crackle paint.

A method for evaluating a shape of an optical element, including: executing polynomial approximation to obtain a deviation shape of a testing surface of an optical element with respect to an ideal surface; calculating an evaluation shape by extracting a rotationally symmetric irregularity component of the deviation shape from a result of the polynomial approximation; adding a 2^nd order component to the evaluation shape so that a region including a pupil center of the evaluation shape is planarized; and calculating a rotationally symmetric irregularity value of the testing surface based on the evaluation shape to which the 2^nd order component has been added.

The invention discloses a liquid crystal backlighting optical target, composed of the pedestal, the liquid crystal backlighting board and the optical target. The pedestal is box-body shaped, and the front panel of the box body is set with the optical target whose surface is set with geometrical pattern. The backlighting board is set in the box body and the condensation cathode fluorescent tube isset on the external edge of the backlighting board. The backlighting board and ground glass pieces can be set on the adjusting guide way in the box body, which can remarkably adjust the optical output property and quality of the optical target. Because of adopting 4-tube liquid crystal backlight board and of simulating ideal surface light source by plate light source, the heat productivity is by far the less than the traditional filament lamp and halogen lamp.

The invention discloses a medical titanium material surface oxidization strengthening method. According to the method, on the basis of an anodic oxidation two-step method, an organic acid solution isutilized as an electrolyte, short-time anodic oxidation is conducted, a bonding layer is formed at the interface position of the bottom of a TiO2 nano tube and a Ti substrate, and accordingly a novelshearing-resisting, abrasion-resisting and corrosion-resisting novel titanium (titanium alloy)-TiO2 nanotube engineering material is obtained. Compared with an existing TiO2 nanotube preparing technology, the technical problems that an ordinary anodic oxidation TiO2 nano tube is prone to stripping, and mechanical stability is poor are solved on the premise that material structures are not changed;meanwhile, the corrosion resisting performance of the TiO2 nano tube is improved, the bottleneck of limitation of actual TiO2 nano tube engineering material application is broken through, and the beneficial effects that cost is low, simpleness and rapidness are achieved, and additional equipment does not need to be introduced are achieved; and the medical titanium material surface oxidization strengthening method is an ideal surface modification technology applied to the medical titanium-based material, and the material has important application prospects in the biomedical field.

The invention discloses a metal reflector which comprises a closed substrate, a mirror surface arranged on the surface of one end of the substrate, an internal interlayer lightweight structure and a back plate arranged on the surface of the other end of the base body. The mirror surface comprises a surface modification layer, a reflecting layer and a protective layer, and the protective layer is the outermost layer; the interlayer lightweight structure comprises a plurality of cavities and through holes connected through the cavities. An additive manufacturing and processing technology is adopted, so that the interlayer light-weight structure in the metal reflector is more flexible, the metal reflector not only meets the high-rigidity design of the reflector, but also is light in weight due to the interlayer light-weight structure; the integrated design is adopted; the design of the surface modification layer enables the precision to be defined as that the RMS value of the deviation value between the precision and an ideal surface is superior to 1/10 lambda, wherein lambda is equal to 632.8 nm; the design of the transition layer enhances the chemical and mechanical durability of the metal reflector, and improves the bonding strength between the metal reflector substrate and the surface modification layer.

The invention relates to a construction method of a semiconductor quantum dot/graphene Van der Waals junction film flexible device with a good surface photovoltaic performance. By employing method forpreparing single-layer graphene by a flexible substrate mechanical stripping chemical vapor deposition method, semiconductor quantum dots are modified on graphene, the annealing temperature and timeof the device are controlled, the Van der Waals contact between the semiconductor quantum dots and the graphene is optimized to successfully construct the semiconductor quantum dot/graphene Van der Waals junction film flexible surface photovoltaic device with ideal surface photovoltaic response performances, and the semiconductor quantum dot/graphene Van der Waals junction film flexible surface photovoltaic device can be used for relative position detection or photoelectric detection.

The invention provides a magnesium/solid and liquid magnesium composite casting forming method and belongs to the field of material machining engineering. According to the method, solid magnesium alloy is arranged in magnesium alloy melt for preparation of magnesium-coated magnesium castings. The method includes the following steps that (1) the solid magnesium alloy is machined, so that a required material type is acquired, and the ideal surface roughness is acquired through turning and grinding; (2) the surface of the prefabricated solid magnesium alloy is chemically washed, so that oil dirt and oxide on the surface are removed; (3) magnesium alloy with other components is smelted until the magnesium alloy is completely fused; (4) the treated magnesium alloy of the different material type is inserted in the magnesium alloy melt, wherein the temperature is kept between 610 DEG C to 690 DEG C in the inserting process; (5) after the treated magnesium alloy is inserted, the temperature is maintained for 5 min to 15 min, and then the whole melt is taken out and cooled through air to the indoor temperature. According to the solid and liquid magnesium composite casting forming method, the metallurgical combination purpose that an interface of the magnesium alloy with the different components is completely even is achieved, the defects of magnesium alloy with a single component are overcome, the interface is excellent in tensile resistance and shearing resistance mechanical property and high in ductility and toughness, and therefore the magnesium alloy is hopefully and widely applied to the fields of traffic, national defense, aviation, aerospace, chemical engineering and the like.

The invention provides a manufacturing method for a ceramic powdery granule with a coating and a granule structure of the ceramic powdery granule. According to the manufacturing method for the ceramic powdery granule, a coating solution is sprayed in the process of formation of slurry into powder in widely-known spraying and granulation process, and after drying, the ceramic powdery granule with the coating is obtained. The manufacturing method provided by the invention enables coating particles on the surface of the ceramic granule to have good coating effect and has the characteristics of reduction in manufacturing procedures and in cost and high in manufacture benefits. The ceramic powdery granule with the coating protects burrs on the surface of the core of the slurry, overcomes the problem of low manufacture benefits, has a smooth surface, improved fluidity, and uniform quality and distribution; so the problem that the ceramic powdery granule has nonuniform quality and disorder distribution in compaction into a brick is overcome, little burr damage occurs, and a green body is not prone to deformation and cracking; and a prepared tile has more ideal surface effect.