66results about How to "Improve forming rate" patented technology

The invention relates to a processing process of a screw pipe bending machine, which is used for bending hollow steel pipes. The processing process comprises the following steps of: (1) filling a real object into a hollow steel pipe, sealing both ends of the steel pipe and bending the steel pipe; (2) receding a counter shaft through a driving and reversing mechanism, mounting one end of the steel pipe in a mounting groove of the counter shaft, aligning a bending part to the end part of the counter shaft, and buckling the other end of the steel pipe into a first tooth of a thread groove; (3) forwards impelling the counter shaft through the driving and reversing mechanism until the counter shaft is engaged with a spindle; (4) starting a motor to drive the spindle to rotate and bending and molding the steel pipe along the thread groove of the spindle; (5) receding the counter shaft, taking out the counter shaft through manpower, taking out a processed and molded product and pouring out the real object in the steel pipe; and (6) mounting the counter shaft on an engine base to renewedly produce a next workpiece. The processing process does not need too much manpower so as to reduce the production cost, improve the efficiency and have stable quality.

The invention provides a laser melting forming dust-removing system with multifunctional circulating air flow and a dust-removing method. The dust-removing system comprises an upper cavity and a lower cavity. Three induced air ways are led out of an air inlet of the upper cavity and are the first induced air way, the second induced air way and the third induced air way. The first induced air way communicates with a dust-removing subsystem in a scanning area. The second induced air way communicates with a dust-removing subsystem of a laser protection mirror. The third induced air way communicates with a dust-removing subsystem of a movement sliding table cavity. The laser melting forming dust-removing system with multifunctional circulating air flow and the dust-removing method have the beneficial effects that in the whole laser melting forming process, smoke-shaped dust generated when lasers act on metal powder can be absorbed into a dust filter in time under the effect of a draught fan, dust generated by part forming is filtered out in time through the dust filter, the influences, on the subsequent forming quality, of the smoke-shaped dust are prevented, and the forming rate is increased; and in addition, the dust is prevented from rising to the position near the laser protection mirror located over the scanning area, and the dust is prevented from entering a sliding table guide rail in the sliding table cavity.

The invention provides a laser melting forming protection circulating dust-removing system and method. The system comprises an upper cavity and a lower cavity. An exhaust opening of the lower cavity communicates with an air inlet of the upper cavity. An exhaust opening of the upper cavity communicates with an air inlet of the lower cavity. The end of a second gas conveying pipeline extends in a cavity body of the lower cavity. A second electromagnetic valve is installed at the position, located in the cavity body of the lower cavity, of the second gas conveying pipeline. The part, outside the cavity body of the lower cavity, of the second gas conveying pipeline is sequentially connected with a dust filter, a draught fan and a first electromagnetic valve in series. In addition, the upper cavity communicates with a shield gas pipeline which is provided with a third electromagnetic valve. The laser melting forming protection circulating dust-removing system and method have the beneficial effects that firstly, the content of oxygen in a forming cavity can be controlled to be low in real time, and therefore the phenomenon that melt is instantly oxidized can be avoided, and the laser melting forming rate is increased; and secondly, smoke-shaped dust generated when lasers act on metal powder can be absorbed into the dust filter in time, the influences, on the subsequent forming quality, of the smoke-shaped dust are prevented, and the forming rate is increased.

The invention discloses millimetre micro-capsules and a preparation method thereof, and belongs to the technical field of micro-capsule preparation. Continuous production is realized by combining a microfluidic technology and a UV photocuring technology, the particle size and the wall thickness of micro-capsules are realized through the design of a microfluidic pipeline, and the mechanical properties of the micro-capsules are realized through the blending of a resin system or the regulation and control of the wall thickness. The micro-capsules have a scale of 1-8mm, can be rapidly and continuously prepared, can wrap any aqueous solution, can realize controllable preparation of aqueous phase micro-capsules, and the moisture volatilization amount of the micro-capsules is not more than 15% after being stored at room temperature (25 degrees) for half a year.

The invention discloses a ceramic photo-curing 3D printing system and method. The printing system is characterized in that a liquid tank is located on a transparent bottom plate, an elastic separationmembrane is positioned between the transparent bottom plate and the liquid tank, and a working table is located right above the liquid tank; and a DLP projection system comprises a DLP projection mechanism, a fixing frame, a projection lens, a rotating table and a lens converter, wherein the projection lens is located right below the transparent bottom plate, the DLP projection mechanism is fixedon the fixing frame, light emitted by the DLP projection mechanism passes through the projection lens, the transparent bottom plate and the elastic separation membrane and then is irradiated onto light-cured slurry in the liquid tank, the lens converter is fixed on the rotating table, moreover, a fixing plate is arranged on the lens converter, a mounting hole is formed in the fixing plate, and the projection lens is located in the mounting hole. According to the ceramic photo-curing 3D printing system and method, projection equipment with different resolutions and the projection lenses with different resolutions can be relatively conveniently replaced, moreover, the precision of part forming is high, and the quality of the part surface is good.

The invention relates to a pipe fitting composite forming device, and belongs to the field of metal material processing and forming. The pipe fitting composite forming device solves the problem that efficiency losing in the manner of wrinkling, buckling, cracking and the like is prone to being caused by high pressure forming in an existing pipe fitting. The pipe fitting composite forming device ischaracterized in that an upper cavity and a lower cavity are arranged in the bottom surface of an upper die and the top surface of the lower die in a sinking manner correspondingly, a cavity of a combined die unit is formed by the upper cavity and the lower cavity, and a pipe fitting to be formed is horizontally clamped between the upper die and the lower die. A heating unit is used for heating the pipe fitting to a predetermined temperature. A hydraulic unit is used for injecting emulsion into the pipe fitting reaching the predetermined temperature to enable the pipe fitting to reach a deformation critical point, and the emulsion is recovered after the pipe fitting is formed. An axial feeding unit is used for applying axial pressure to the pipe fitting at the deformation critical point to wrinkle the outer wall of the pipe fitting. An impact unit is used for applying impact force to the pipe fitting with the wrinkling outer wall through the emulsion in the pipe fitting under the effect of an electromagnetic pulse generating unit until the pipe fitting is attached to the cavity of the combined mold unit.

The invention discloses a clay blank plasticizing device for ceramic processing. The clay blank plasticizing device for ceramic processing comprises a ceramic shaping box body, wherein a fixing box isarranged on the right side of the ceramic shaping box body, and a supporting plate is arranged at the bottom of the ceramic shaping box body and the bottom of the fixing box; and an arc-shaped fixingopening is formed in the lower portion of the front surface of the fixing box, L-shaped rail strips are fixedly connected to the portions, located on the left side and the right side of the arc-shaped fixing opening, of the front surface of the fixing box, a cover plate is arranged between the two opposite L-shaped rail strips in a sliding manner, and a lifting cover device is arranged on the front surface of the cover plate. According to the clay blank plasticizing device for ceramic processing, the lifting cover device, an adjusting fixing device and a lifting device are matched for use, to-be-plasticized ceramic clay blanks can be stably conveyed into the ceramic shaping box body before the ceramic processing process, the to-be-plasticized forming rate of the ceramic clay blanks is improved, and the reworking rate of the to-be-plasticized clay blanks is decreased. The clay blanks can be stably conveyed into a drying area before entering a drying device, so that the damage rate of plasticizing of the ceramic clay blanks is greatly avoided, and the success rate of the ceramic processing clay blanks is increased.

The invention provides a differential thermal forming method for preparing a high-strength and high-toughness magnesium alloy. The differential thermal forming method aims at only heating a forming die at the deformation temperature without heating an alloy sample. After heat preservation is conducted for a determined time, an alloy blank at the room temperature is placed in the heated forming die, and stable deformation is achieved. The differential thermal forming method comprises the steps that (1) burdening is conducted; (2) preheating is conducted, specifically, a dried magnesium ingot, tin particles, a zinc block and an Mg-Zr intermediate alloy are preheated for 30-35min at the temperature of 200-250 DEG C; (3) smelting and casting are conducted, and a cast alloy is obtained; (4) heat treatment is conducted and comprises solution treatment and aging treatment; (5) and (6) extrusion forming is conducted; and (7) and (8) differential thermal equal-channel corner extrusion forming is conducted. The forming method serves as the core, and differential thermal equal-channel corner extrusion stable forming is successfully achieved. The tensile strength of the alloy exceeds 300MPa, the ductility is close to 30%, excellent comprehensive mechanical performance is obtained, and good strength and plasticity matching is achieved.

The invention discloses a titanium nail of an anastomat. The titanium nail of the anastomat comprises a nail base (1) and nail legs (2) arranged at the two ends of the nail base (1). The upper end of each nail leg (2) is provided with a nail tip (2-2); the upper part of each nail leg (2) is provided with an arc part (2-1); each nail tip (2-2) is bent inwards; and an inward bending angle alpha is 6 degrees to 8 degrees. The design of the titanium nail of the anastomat disclosed by the invention improves probability of titanium nail formation, reduces resistance of the titanium nail formation and guarantees stability of the titanium nail formation.

The invention belongs to the technical field of processing of tea leaves, and particularly discloses a preparation method of black tea. The preparation method of the black tea comprises the followingsteps of (1) performing withering: withering the tea leaves, performing rolling lightly, and performing illumination for withering; (2) performing rolling: performing four-grade rolling on the tea leaves by regulating the rolling pressure and rotating speed; (3) performing rolling post-treatment; (4) performing fermentation: performing circular fermentation and red light illumination on the tea leaves, and then performing ultraviolet illumination; (5) performing fermentation post-treatment; (6) performing drying; and (7) performing sieving. According to the preparation method of the black tea,the tea leaves are treated from various technologies, so that the appearance, the color and the fragrance of the tea leaves are effectively improved. The prepared tea leaves are high in sensory quality, high in nutrient value and high in yield of finished products.

The invention relates to the technical field of electric arc additive manufacturing, in particular to a weld bead forming control system in an electric arc additive manufacturing process and a parameter optimization method of the weld bead forming control system. The weld bead forming control system in the electric arc additive manufacturing process comprises a computer control module, an off-lineprogramming module, an electric arc additive manufacturing system and a monitoring and feedback adjusting system; the off-line programming module designs a deposition path and sends the deposition path to the computer control module; the electric arc additive manufacturing system welds machined parts according to the deposition path; the monitoring and feedback adjusting system monitors the temperature of a molten pool; and the computer control module controls the electric arc additive manufacturing system to conduct welding according to data fed back by the off-line programming module and the monitoring and feedback system. According to the weld bead forming control system in an electric arc additive manufacturing process, change of the molten pool can be effectively reduced, stability in a deposition process can be improved, and technological parameters in a welding process can be effectively optimized through continuous feedback adjustment.

The embodiment of the invention provides a gesture recognition method and device, electronic equipment and a readable storage medium, and relates to the field of image processing. The method comprises the steps of obtaining gesture posture estimation data of an image to be recognized, wherein the gesture posture estimation data comprise position information of a first joint point of a hand; fitting a preset first hand model based on the gesture estimation data to obtain a second hand model; according to node information of each second joint point in a second hand model, adjusting the gesture attitude estimation data to obtain target attitude data conforming to the structure of the second hand model; and performing gesture recognition according to the target posture data to obtain a recognition result. Therefore, the position information of each joint point conforming to the actual hand model structure can be obtained, the position information of the joint points used during gesture recognition is more accurate, drifting of points can be reduced, the forming rate of the hand shape is increased, and therefore the accuracy of the recognition result is improved.

The invention discloses a method for preparing a composite magnetic material by using a gel method by using ferromagnetic particles. An improved sol-gel method is adopted to prepare NiFe2O4 magnetic nano-particles, the single-phase performance is good, the dispersion is relatively uniform, the preparation method is simple, and the cost is relatively low in comparison with the prior art. Accordingto the method in the invention, chemical curing and photo-curing are combined so that the curing time is shortened, the curing speed of the magnetic material is increased, and consequently, the forming rate of the product is improved.

The invention provides a golf club head alloy and aims to solve the problem that the golf club head prepared from the conventional golf club head alloy is too heavy. The golf club head alloy is prepared from 6.5%-7.5% by weight of aluminum, 1.0%-2.5% by weight of iron, 0.05%-0.2% by weight of silicon, smaller than 0.15% by weight of oxygen, smaller than 0.1% by weight of carbon, smaller than 0.05%by weight of nitrogen and the balance of titanium and inevitable impurities, and density of the golf club head alloy is 4.35-4.39 g/cm<3>.