33 results about "Impact depth" patented technology

The invention provides a drop hammer impact testing machine which is simple and practical in structure and can be used for conveniently measuring the depth of a hammer head which impacts into a sample. The drop hammer impact testing machine comprises a frame, a hammer lifting mechanism, a sample lifting mechanism, an electric appliance cabinet and a grating ruler, wherein the hammer lifting mechanism is arranged in the center on the upper part of the frame and comprises a pair of guide rods, an electromagnet sucker and a hammer body component; the hammer body component is movably connected with and positioned between the pair of guide rods; the sample lifting mechanism is arranged in the center of the lower part of the frame; the electric appliance cabinet is in transmission connection with the hammer component through a chain; the grating ruler is connected with the hammer component; the hammer component comprises a lifting block and a hammer lifting block; the lifting block is arranged above the hammer lifting block and is connected with the top surface of the electromagnet sucker; a proximity switch is arranged on the lifting block; a contact for triggering the proximity switch is arranged on the hammer lifting block. The impact depth of the sample is conveniently measured by the machine, and the operation is simple.

The embodiment of the invention discloses a multiple-unit control method and a multiple-unit control device for reverse laser shot peening. The region area and impact depth of laser shot peening treatment are reasonably designed by virtue of the modification characteristic of a surface layer material generated through laser shot peening, and a laminated section is constructed to change the Young moduli of parts, thus the inherent frequency is changed, and the dual purposes of reinforcement and frequency modulation treatment are realized; moreover, modelling analysis is carried out through a mechanical model to optimize a sizing region and parameters with regard to the common problem of structure deformation in the laser shot peening treatment, and repair for the deformation of the parts is realized through reversely loading impact loads, thus the purpose of dimensional stability of the laser shot peening parts is achieved; and moreover, the multiple-unit control method and the multiple-unit control device are capable of meeting the various needs of rotating parts, and in particular, are suitable for high-speed rotating parts bearing aerodynamic loads, such as gas turbine blades, aviation engine blades and the like.

The invention belongs to the technical field of square billet continuous casting production and discloses a square billet hyperbolic-type submersed nozzle and a manufacturing method thereof. The method comprises the steps including designing of a hyperbolic-type nozzle; counterboring; tool machining; machining of the hyperbolic-type nozzle; spraying and the like. According to the method, by designing the shape of an internal hyperbolic-type channel of the nozzle, by means of the characteristic that the upper curvilinear section areas are gradually decreased, the volume proportion of a cavity in the upper portion of the nozzle is controlled, and the tendency that gas suction of the nozzle causes secondary oxidation is reduced; and by means of the characteristic that the lower curvilinear section areas are gradually increased, steel flow flows downwards in a dispersed mode, the impact depth in a crystallizer of molten steel is decreased, and the flow behavior of the molten steel in the crystallizer can be improved easily. According to the square billet hyperbolic-type submersed nozzle and the manufacturing method thereof, the portion, in the hyperbolic top position, of the channel ismachined into a ring shape, backflow formed after multiple times of reducing of the steel flow is mainly used for disturbing a center flow, the flowing speed of the center flow is decreased, and thesteel flow is controlled to decelerate on the whole.

The invention relates to a method for improving the service life of turbine blades based on laser double-sided shock technology. Firstly, Nd:YAG pulsed lasers are used to perform equal-energy laser beam splitting; then, using flowing water as a constrained layer, the blades are impacted and strengthened at the same time by using gradient facula overlapping ratios. At the root, the fixture fixes the turbine blade, using high-energy and large-spot pulsed laser with a 90% overlap rate to impact the bottom of the blade root on both sides at the same time; The lap rate of the previous impact minus 10% is used for impacting; until the lap rate is 0, the laser shock strengthening of the blade root is completed. It makes up for the shortcomings of insufficient impact depth of mechanical shot peening, and adopts a gradual lapping rate to impact the root of the blade to make the distribution of the residual stress field smoother; adopts the laser double-sided impact method to avoid deformation and damage of the blade caused by single-sided laser impact. Simultaneous impact makes the front and back of the blade bear the same force.

A virtual digital sculpting method based on natural hand gestures, comprising the following steps: hand gesture position acquisition, the hand gesture position being acquired by means of leap motion; and virtual sculpture modelling. When implementing virtual sculpting tasks, there are two main models, one being a constructed model to be sculpted, and one being a virtual hand model constructed of joint coordinates acquired by means of leap motion; when the human hand moves under leap motion, controlling the virtual hand to make a slight impact on the fixed model to be sculpted, detecting whether there is an intersection point at the impact site by means of a three dimensional space triangle and triangle intersection algorithm, and the intersecting line position and, on the basis of a calculation of the impact depth, using a virtual sculpting deformation algorithm to perform real-time modification of the intersection point position coordinates, thereby achieving a sculpting deformation effect.

The embodiment of the invention discloses a multiple-unit control method and a multiple-unit control device for reverse laser shot peening. The region area and impact depth of laser shot peening treatment are reasonably designed by virtue of the modification characteristic of a surface layer material generated through laser shot peening, and a laminated section is constructed to change the Young moduli of parts, thus the inherent frequency is changed, and the dual purposes of reinforcement and frequency modulation treatment are realized; moreover, modelling analysis is carried out through a mechanical model to optimize a sizing region and parameters with regard to the common problem of structure deformation in the laser shot peening treatment, and repair for the deformation of the parts is realized through reversely loading impact loads, thus the purpose of dimensional stability of the laser shot peening parts is achieved; and moreover, the multiple-unit control method and the multiple-unit control device are capable of meeting the various needs of rotating parts, and in particular, are suitable for high-speed rotating parts bearing aerodynamic loads, such as gas turbine blades, aviation engine blades and the like.

The invention discloses a nylon film composite material for an outer film of a lithium-ion polymer battery, aiming at providing a nylon film composite material which is stable in thermal property, not easy to absorb moisture, puncture-resistant, high in dry-state and low-temperature impact strength, non-deformable in case of absorbing water, good in multi-layer coextrusion compounding compatibility, balanced in flow extension, and capable of realizing no breakage of a corner in case of an impact depth of 3-12 mm or more. The nylon film composite material disclosed by the invention is realized via the following technical scheme: 8-12 wt% of maleic anhydride (MAH), MAH-blended K resin and graft K-MAH grafted POE (polyolefin elastomer) blend material are contained in a nylon filling body; the nylon filling body takes maleic anhydride grafted polyethylene and ethylene propylene terpolymer rubber as interface compatibilizers; a maleic anhydride grafted elastomer carboxylic acid group is reacted with a polyamide end group or a polyamine group in a main chain to form a grafted copolymer; and epoxy resin siloxane hydrolysate is reacted with an amide group molecular-chain amino group to polymerize the composite material with a multi-element interwoven network. According to the composite material disclosed by the invention, the problem of the phenomenon that PA (polyamide) film heat seal is easy to fold, layer and break at a certain corner is solved.

A harness method for chemically produced thiamin crystallization tank area local geographical base pollution is realized in the following steps: people confirm the treating range and dig deep ditches on the periphery; the building depth is a little greater than the separation wall of the acidification impact depth; drilling holes are arranged in a cinquefoil shape with a hole pitch no less than 1.5 m in the partition area mentioned above and the hole array is arranged into a regular combined well array with one list of grouting well pipes and the other list of pumping well pipe; every four lists of holes is used as grouting and draining unit; the grouting well is infused with treating liquid, the major component of which is Ba(OH)2, macromolecule flocculating agent and water treatment accelerant to form BaSO4 sediment in the soil which is acid and alkali resistant, and hyperbaric; in addition, the sediment can absorb harmful radiations and protect the environment in a way.

The invention relates to an electromagnetic brake device for controlling the flow of metal liquid in a continuous casting crystallizer. The device is composed of a magnetic core which semi-surrounds the side wall of the crystallizer, an excitation coil and magnetic poles, the magnetic pole is arranged in a narrow-surface area which is inclined to the crystallizer, the magnetic pole simultaneouslycovers the surface area of the metal liquid which is in the vicinity of the narrow surface of the crystallizer and the area of an impact point of the outflow of a nozzle on the height, a static magnetic field is generated between two pairs of the magnetic poles by imposing the current on the excitation coil, the surface flow of the metal liquid which is in the vicinity of the narrow surface of the crystallizer and the flow of the area of the impact point of the outflow of the nozzle of the metal liquid in the crystallizer are simultaneously controller by the static magnetic field. The electromagnetic brake device has the advantages that: the electromagnetic brake device can simultaneously effectively inhibit the surface slag entrapment of the metal liquid which is in the vicinity of the narrow surface of the crystallizer and the impact depth of the metal liquid of the outflow of the nozzle, promote the upward floating and removal of inclusions, bubbles and other heterophase substancesof the front edge of a metal coagulation shell and weaken the influence degree of the immersion depth of the nozzle and the angle of the outflow of the nozzle on the electromagnetic brake effect during the changes; furthermore, the electromagnetic brake device has simple form and small structural size, the volume and weight ratios are greatly reduced compared with the volume and weight ratios of the electromagnetic brake device of the full-frame one-section and the full-frame two-section, thus saving energy and reducing consumption.

Under the action of waves, the in-situ pore pressure and impact depth monitoring device of the soil has a measuring rod composed of a sleeve, a cone tip resistance sensor at the front end, a side friction resistance sensor and a pore water pressure sensor behind its position, and a corresponding data acquisition device. The utility model is characterized in that it includes a plurality of pore water pressure sensors arranged on the joint and arranged on the long measuring rod by connecting sleeves at both ends with the joint, and a resistivity sensor is also installed on the joint. The invention thus constructed can not only monitor the variation of pore pressure in soil at different depths under the action of waves, but also monitor the impact depth of waves of different sizes, so as to analyze the stability of the soil. At the same time, the resistivity sensor is used to test the resistivity of soil at different depths, so as to analyze the corrosion degree of soil to submarine pipelines and other engineering facilities, and provide a scientific basis for the determination of its embedding depth.

The invention provides an adjustable compaction machine. The machine comprises a rack, a rammer disposed on the front end of the rack, a transmission device which drives the rammer to make periodic lifting motion under gravity effects, a control device which is disposed inside the rack and used to control work of the transmission device as well as an adjustment device which is firmly disposed on the rack and used to adjust an impact depth of the rammer. The rammer can be a flat-top rammer which is used for compaction of backfill soil, and can also be a sharp-head impact block which can be used for positioned punching. The machine provided by the invention can adjust an impact distance of the rammer in time according to a height of ground compaction and is applicable to compaction of low-lying parts or raised ground surfaces.

The invention relates to a phosphorus-preserving smelting method for converter steelmaking, which belongs to the technical field of metallurgy. In this method, the smelting time is divided into three phases: the first, the middle, and the last. By adjusting the amount of lime added, the binary basicity R of the slag is always controlled between 2.0 and 2.8; The mass percentages of the oxygen blowing volume and the total oxygen blowing volume in the first, middle and last phases are controlled at 18-22%, 55-65%, and 18-22% respectively, and the impact depth of the oxygen jet in the early and middle phases is controlled at 100% of the depth of molten steel. 60-70%, and the impact depth of the oxygen jet in the later stage is controlled at 70-80% of the molten steel depth; the residual carbon content of the final molten steel is controlled at 0.05-0.1%. After adopting the present invention, since the peaks of dephosphorization before and after smelting are reasonably balanced and controlled, the retention rate of phosphorus in molten iron can reach 30% to 70% without adding phosphorus-containing ore, thereby realizing the required Phosphorus smelting.