626results about How to "Improve product performance" patented technology

The invention concerns a method for production of a three-dimensional body by successively providing powder layers and fusing together of selected areas of said layers, which areas correspond to successive cross sections of the three-dimensional body, wherein the method comprises the following steps for at least one of said layers: applying the at least one powder layer onto a working area, and fusing together a selected area of the at least one powder layer by supplying energy from a radiation gun to the selected area. The invention is characterized in that it comprises the steps of: establishing an intended beam path that is to be used when fusing together the selected area of the at least one powder layer, calculating a temperature in the at least one powder layer along the intended beam path as a function of a specific energy deposition of an imaginary beam that is assumed to move along the intended beam path, adjusting the specific energy deposition of the imaginary beam along the intended beam path depending on the calculated temperature and on conditions set for the step of fusing together the selected area, and providing, based on the calculations and the adjustments, an operating scheme for the specific energy deposition of the real beam to be used for the intended beam path when fusing together the selected area of the at least one layer.

The present invention belongs to high polymer material and forming and processing field thereof, and provides a long glass fibre reinforced nylon material and preparing method thereof, wherein the constituents comprise: 29-67wt% of nylons, 30-60wt% of long glass fibre, 2-10wt% of compatilizer and 0.3-1.0wt% of antioxidants. The preparing method comprises the following steps: first mixing the nylons, compatilizer and antioxidants; adding the mixture into a double-screw extruder, wherein the processing temperature is 235-300 DEG C; extruding resin fondants into a dipping mould connected to the double-screw extruder; enabling the long glass fibre to pass through the dipping mould, wherein the dipping temperature of the dipping mould is 260-300 DEG C, dipping the long glass fibre completely in by the fondants, cooling, dragging and granulating the long glass fibre to obtain the long glass fibre reinforced nylon materials. The method of the present invention can strengthen the dipping effect of glass fibre in nylon fondant, eliminate or decrease harmful substances, reduce environmental pollution, and improve the dipping effect and mechanical property of materials effectively.

The preparation method for benzoazine with aralkyl group comprises: adding phenols compound as 80-100 weight shares and 80-120 aralkyl compound into the reaction kettle; with 1-4 acidic catalyst, stirring to react for 1-3h at 80-140Deg; cooling to below 50Deg; adding 30-40% formaldehyde liquid as 160-360 weight shares and 4-8 basic catalyst to adjust pH value within 6-9; adding solvent and 40-120 diamine to reflux reaction for 2-8h at 85-95Deg; finally, vacuum dewatering at 80-40Deg. This product is used mainly to manufacture high-performance constructional material fit more than 180Deg, the electrically insulating material, or glass fabric and extruding material with vitrifying temperature more than 175Deg.

The invention relates to a micro-nano-alloy bimetal composite material preparation technique and a device thereof; one of wear-resistant and corrosion-resistant ferrous metal material, non-ferrous metal material and various self-fluxing alloy is prepared into power; then, the powder is added with less than or equal to 0.8% of one or combination in CeO2, Y2O3 and La2O3, 0.3-1.5% of MgO, 0.3-1.8% of CaF2, 0.0-1.5% of B, 0.1-0.8% of Nb, 0.1-1.0% of Ti, 0.1-2.0% of grain refining and recrystallization inhibitor according to the mass percent; or the powder is added with 1-40% of carbide, nitride, micro-nano or nano particles of boride; and the mixture is put into a high-energy stirring ball grinding mill for grinding and ball milling, so that the micro-nano or nano alloy powder can be prepared. A variable frequency induction heating device is adopted for cladding and melting vacuum or inert gas, so that a workpiece can be melted and coated with a micro-nano or nano scale alloy cladding layer which has the grain size of 0.1-35mm and is wear-resistant and corrosion-resistant, and the bimetal composite material can be prepared. The invention overcomes the defects in various coating techniques in China at present, can complete the preparation of the workpiece with the cladding layer having high thickness for once, does not need repeated coating and sintering, has high material utilization rate, low machining allowance and preparation cost, simple preparation technique and high production efficiency.

A device that can be used, for example, for application or use with hair care products. The device includes two sheets connected to one another by a connecting region which defines a cavity on a first side of the connecting region, such that a user's hand can be inserted into the cavity. A flexible strip preferably cut into fringes and flaps, is provided on a second side of the connecting region. A method for manufacturing a device of this kind is also provided in which two webs of strip material are unrolled simultaneously, connected, and then cut. Parts of the webs, including both the connecting region and the cut fringes and flaps, are then separated. The device can optionally be impregnated with a product, for example, a hair care product.

The invention discloses a method for determining the dimensions of a ring radially-axially rolled blank, which comprises: firstly, determining a blank dimension calculation formula and the ranges of the values of a rolling ratio k and a radial-axial deformation distribution ratio tana and obtaining the outside diameter Df, inside diameter df, height hf and wall thickness bf of a ring forging and the diameter dm of a core roller; secondly, determining the deformation mode for ring radial-axial rolling; thirdly, calculating and determining the ranges of the values of the rolling ratio k and the radial-axial deformation distribution ratio tana according to the obtained dimensions of the ring forging and the core roller and the determined deformation mode; and finally, selecting a value of the rolling ratio k and the value of the corresponding radial-axial deformation distribution ratio tana according to determined ranges of the values and the deformation mode, calculating the wall thickness b0 of the blank in the corresponding deformation mode, and finally obtaining the height h0, outside diameter D0 and inside diameter d0 of the blank in the corresponding deformation mode. In the invention, for the rolling of a certain ring forging, a series of different rolling ratios k and radial-axial deformation distribution ratios tana of the blank can be designed, the design efficiency and product performance of the ring radially-axially rolled blank are improved, the production period is shortened, the production cost is reduced, and an important method and foundation are provided for researches on the optimization design of the rolling processes (including the rolling process of the blank).

The invention relates to a method for radially and axially rolling and forming large-sized double-edge stepped ring parts. The method includes reasonably designing a ring part blank and a rolled hole, controlling a rolling process, directly rolling the rectangular ring part blank to form a double-edge stepped ring part, rolling the hole by a working surface of a driving roll and a working surface of a core roll, and determining the size of the working surface of the driving roll and the size of the working surface of the core roll according to rolling linear speed, equipment parameters, rolling deformation conditions, the size of the ring part blank and the size of the ring part; controlling the rolling process according to a pre-rolling stage, a main rolling stage and an integral rolling stage; and completing the rolling process when the measured outer diameter of the ring part reaches a preset value. By the aid of accumulation of continuous local plastic deformation, the diameter of the ring part is enlarged, the outline of the double-edge stepped section of the ring part is integrally formed, energy, material and working hour consumption is effectively reduced, metal flow line distribution of the ring part is improved, production efficiency and performances of the product are enhanced, and production cost is reduced.

The invention discloses a high-voltage lithium ion battery cathode material of copper-doped lithium manganate. The high-voltage lithium ion battery cathode material is characterized in that the general formula is LiMn2-xCuxO4, wherein x is more than or equal to 0.1 and less than or equal to 0.5. The modified cathode material is prepared by adopting a sol-gel method, and the preparation method comprises the following steps of: dissolving a soluble lithium salt, a soluble manganese salt and a soluble copper salt in deionized water to prepare a mixed solution; mixing with an acidic complexing agent solution to react, controlling the reaction temperature to be between 60 and 90 DEG C, and adjusting the pH value to be 6 to 8 by using ammonia water; continuously stirring and drying by evaporation; after drying, pre-burning the obtained gel precursor for 1 to 10 hours at 400 to 500 DEG C; and calcining the gel precursor for 8 to 16 hours at 600 to 900 DEG C to obtain a final product. The high-voltage lithium ion battery cathode material of copper-doped lithium manganate is uniform in grain diameter and stable in structure, the technical process is simple, the production cost is low, and a prepared lithium ion secondary battery has high charge-discharge cycle performance.

The invention discloses a method and apparatus for continuous production of a flexible micro-nano metal network transparent conductive film. The method comprises the steps of: continuously conveying a flexible substrate to undergo pre-cleaning, air drying, atmospheric pressure plasma cleaning, cracking liquid coating and heating in order, thus forming a craquelure template on the flexible substrate; placing the flexible substrate in a vacuum chamber and performing vacuum pumping on the vacuum chamber; subjecting the flexible substrate to secondary plasma cleaning, then coating a compact metal film, and filling the craquelures on the craquelure template with a metal film material in the process so as to obtain a flexible micro-nano metal network transparent conductive film semi-finished product; releasing vacuum, taking out the semi-finished product from the vacuum chamber, and removing the craquelure template from the flexible substrate, thus obtaining the product. The method and apparatus provided by the invention realize continuous and large-area production of the flexible micro-nano metal network transparent conductive film. The film coating mode is suitable for industrial automatic continuous magnetron sputtering production lines, can greatly shorten the production cycle, and substantially improves the productivity.

A ring-shaped connecting portion is formed on a seat surface side of a pipe connector. The connecting portion is tapered so that thickness thereof gradually reduces toward a tip end thereof. A protrusion is formed on the tip end of the connecting portion. A ring-shaped groove is formed on a flat outer peripheral surface of a common rail. By fitting the protrusion into the groove, the connector can be positioned to a predetermined position of the common rail. In this structure, current can be concentrated to the protrusion and current density can be increased. As a result, sufficient bonding strength can be attained.

The invention relates to a thermoplastically modified high-fluidity polyvinyl alcohol casting film material and a preparation method thereof. A purpose of the present invention is mainly to solve theproblems of poor thermoplasticity, difficult processing, poor melt fluidity, easy thermal-oxidation degradation, difficult casting film preparation and poor mechanical property of polyvinyl alcohol inthe prior art. The technical scheme comprises that the thermoplastically modified high-fluidity polyvinyl alcohol is used, and comprises, by mass, 1) 70-99.9 parts f polyvinyl alcohol, and 2) 0.1-30parts of a plasticizer, the polyvinyl alcohol and the plasticizer are respectively introduced into a twin-screw extruder, and melt extrusion and granulation are performed through a screw rod extrusionprocessing technology to obtain the thermoplastically modified high-fluidity polyvinyl alcohol. With the technical scheme, the problems in the prior art are well solved. The method of the present invention can be used for industrial production of polyvinyl alcohol casting film materials.

The invention discloses a preparation method for a pecan shell smoke solution with high antibacterial and antioxidant activity, and belongs to the technical field of aquatic product processing. The preparation method comprises the following steps: using pecan shells as raw materials, adding the pecan shells and sucrose into a dry distillation device in proportion, performing dry distillation decomposition and smoke cooling to obtain a crude smoke solution, refining the crude smoke solution with ethyl acetate, and removing carcinogens with a macroporous resin to obtain the pecan shell smoke solution with high antibacterial and antioxidant activity. The pecan shell smoke solution prepared according to the method contains 18.1-20.5 mg/mL of polyphenols and 9.5-10.8 mg/mL of carbonyl compounds, and has a pH value of 2.3-2.6; 3,4-benzopyrene is not detected. The pecan shell smoke solution can be applied to aquatic products in two ways, namely, atomizing and soaking, has excellent antibacterial and antioxidant effects, and enables the aquatic products to have rich smoky flavor.

The invention provides a display panel and a crack detection method thereof and a display device. The display panel comprises a first insulation structure layer, a first crack detection line, a secondinsulation structure layer and a second crack detection line which are sequentially arranged on a substrate, the first crack detection line and the second crack detection line are both located in theperipheral area and arranged around the display area. One end of the first crack detection line is configured to receive a detection signal, the other end is configured to output a first output signal, one end of the second crack detection line is configured to receive the detection signal, and the other end is configured to output a second output signal. According to the display panel, whether cracks are generated in the positions where the first crack detection line and the second crack detection line are located or not can be judged according to the first output signal and the second output signal, independent detection of the cracks is achieved, accurate positioning of the cracks in the product production and related bad analysis process is facilitated, and the productivity and the product performance are improved.

The invention discloses a method for preparing pyroligneous by utilizing apricot shells and preparation of apricot shell active carbon based on the method. The method uses seeds of almonds as raw materials and prepares natural and environmental-friendly apricot shell pyroligneous as a bacteriostatic agent and the active carbon as a byproduct through the steps of breaking the shells, grinding, pyrolyzing, removing impurities, standing still, refining, and the like. The prepared pyroligneous has medicinal effects and quite wide application space in various industries such as bacteriostasis, antisepsis, deodorization, plant growth promotion, beverages, cosmetics, and the like. The active carbon as the byproduct has powerful adsorption capacity and is widely applied to the aspects of food industries, decolorization, air purification, deodorization, catalyst carriers, precious metal purification, electric conductors, and the like so as to further facilitate the life of people. The method has quite important social, environmental protection and economic benefit.