78results about How to "Guaranteed performance quality" patented technology

The invention discloses an automatic filling machine for a battery and a battery filling method. The filling machine comprises a rack, a front weighing device arranged on the rack, a filling conveying line, an evacuation filling device, a discharging device, a rear weighing device and a control module. The filling machine also comprises a carrier backflow mechanism which comprises a carrier conveying line parallel to the filling conveying line and carrier transfer devices arranged at two ends of the filling conveying line and the carrier conveying line; and the evacuation filling device comprises a filling nozzle, a driving part for driving the filling nozzle to move, a filling cup communicated with the filling nozzle, a filling buffer tank communicated with the filling cup and a sealing cylinder for sealing the filling nozzle and the battery in the sealing cylinder. In the invention, automatic operations of battery conveying, filling, evacuation and discharging are ensured, the machine design and process layout are compact, the vacuum and high-pressure circulating alternate filling method is adopted, and the full absorption and filling precision of electrolyte of the battery are ensured.

The invention discloses a three-phase auxiliary inverter, which comprises a main circuit and a control circuit, wherein the control circuit detects and controls the main circuit; the main circuit comprises an input filtering circuit, a DC/DC conversion circuit, a DC/AC inverter circuit and an output filtering circuit; and the DC/DC conversion circuit comprises a half-bridge inverter circuit adopting a high-frequency transformer and a full-bridge rectifier circuit. When the inverter is on, the control circuit performs system self-checking, the main circuit works under the condition of no fault, the input filtering circuit filters an input power supply and closes a short-circuit contactor after the charging is finished, the control circuit sends a half-bridge inverter pulse, the DC/DC conversion circuit works and converts the input direct current power supply into a steady intermediate direct current voltage, then the steady intermediate direct current voltage is inverted into a three-phase SPWM wave through the DC/AC inverter circuit, and the three-phase SPWM wave is filtered into a three-phase sine wave through the output filtering circuit and supplies the electricity to a three-phase load. The implementation of the three-phase auxiliary inverter reduces the voltage stress borne by switching devices, and reduces the weight and the volume of power supplies.

The invention relates to a straightening and leveling process for hot-rolled high-strength steel. The straightening and leveling process is characterized in that: hot-rolled high-strength band steel is fed into a straitening machine and a leveling machine in sequence. The process comprises the following specific steps of: firstly, setting the total elongation rate of a unit according to yield strength needed by a band steel product on the tail of a process section; secondly, distributing a total elongation rate set value to the straitening machine and the leveling machine for presetting the straightening and leveling process; thirdly, detecting the total elongation of detected and processed band steel in real time; and lastly, comparing the total elongation of the detected and processed band steel with the total elongation rate set value, dynamically adjusting the rolling force of the leveling machine in real time to ensure that the total elongation rate of a band steel product on the tail of the process section is constant, lowering the residual stress level of the band steel by using the straightening machine, and ensuring the performance quality of the band steel product on the tail of the process section. Due to the adoption of the process, the internal residual stress level of the hot-rolled band steel can be lowered fully, and the performance quality of a hot-rolled high-strength steel product is improved effectively.

The invention relates to a MnCr carburized gear steel and its production method, the MnCr carburized gear steel comprises the following components by mass percentage: 0.25-0.30% of C, less than or equal to 0.12% of Si, 0.60-0.80% of Mn, 0.80-1.10% of Cr, less than or equal to 0.035% of P, 0.020-0.050% of S, 0.020-0.055% of Al, less than or equal to 20ppm of [O] and the balance of Fe and inevitable impurities. By using an electric furnace smelting, the end point [C] is 0.10-0.15%, [P] is less than or equal to 0.015%, [Si] is less than or equal to 0.05%, and the tapping temperature is 1630-1680DEG C. The method comprises the steps of LF refining, adjusting slag by using carbon powder; feeding aluminum line, calcium line and sulfur line; vacuum treating; soft blowing argon; continuously casting a blank, controlling the tundish temperature at 1520-1540 DEG C, and strictly controlling the casting speed according to different blank types. The isothermal temperature, heating time and rolling temperature can be strictly controlled during the rolling process; thereby a hot-rolled round steel is prepared.

The invention discloses a bone-conduction headset device with a single magnet and a processing method thereof. The device comprises a vibration system consisting of a vibration transmitting sheet and a vibration plate, wherein a voice coil is fixedly arranged on the vibration plate; an outer magnetic conduction plate is further arranged; a magnet is arranged on the outer magnetic conduction plate; an inner magnetic conduction plate is arranged on the magnet; a gap is formed between the inner magnetic conduction plate and the outer magnetic conduction plate; and the voice coil is arranged in the gap. According to the bone-conduction headset device with the single magnet and the processing method thereof, the single magnet and the outer magnetic conduction plate which is arranged integrally are adopted, so that the structure of a product is simplified, a processing method for assembling the magnet without magnetizing during processing and magnetizing the magnet after assembling can be realized, the production efficiency is increased, and the product yield is increased.

The invention relates to a steel for a high-strength mining machine, which comprises the following components in percentage by weight: 0.32-0.39% of C, 1.10-1.40% of Si, 0.80-1.10% of Mn, 0.005-0.020% of P, 0.001-0.025% of S, 1.10-1.40% of Cr, 0.01-0.20% of Cu, 0.01-0.30% of Ni, 0.010-0.060% of Al, 5-20*10<-6> of O, and the balance of Fe and inevitable impurities. The invention also provides a preparation method of the steel for a high-strength mining machine. The steel provided by the invention has excellent comprehensive properties; and the cutting picks of the manufactured heading machine satisfy the operational requirements for large-size mining machines, and enhance the coal production efficiency and economic benefit.

The invention discloses a double-sided chamfering drilling tool, which comprises a cutter body, a chamfering blade and a drilling blade, the end of the cutter body is provided with a blade platform, and the end of the cutter body is provided with a blade Install the horizontal hole, the right end of the cutter body is provided with a clamping part, the inside of the cutter body is provided with an axial hole, one end of the extension rod is positioned and installed in the axial hole by a set screw, and the other end of the extension rod is connected with a spring , the spring is connected with the limit pin; the drilling blade is mounted on the blade platform through a compression screw; a groove is provided in the longitudinal direction of the chamfering blade, and the lower end side wall of the groove is a first inclined plane The chamfering insert has a front chamfering edge and a reverse chamfering edge on the cutting surface. The chamfering insert is installed in the horizontal hole of the insert, and the limit pin is inserted into the groove to lock the chamfering insert. Lock and limit. The beneficial effects of the invention are: convenient processing, double-sided chamfering processing, high processing efficiency and good processing quality.

The invention relates to the technical field of a production technology of a hot-melt adhesive and particularly relates to a production technology of a non-sewn hot-melt adhesive film. The production technology mainly comprises the following steps: enabling TPU (thermoplastic polyurethane) hot-melt adhesive raw material particles to enter into an extruding machine from a hopper and be processed into an adhesive material, sending the adhesive material into a die head of an extruding machine via a screw rod, enabling the adhesive material to be attached on attaching paper on an embossed wheel after being extruded by the die head, and enabling a rubber roller to move forward and tightly press the embossed wheel; and enabling the adhesive material and the attaching paper to pass through the embossed wheel, then forming a hot-melt adhesive film sheet, pulling out the hot-melt adhesive film sheet via a forming wheel, enabling the hot-melt adhesive film sheet to pass through a traction wheel, then winding via a winding wheel, and finally producing the coiled non-sewn hot-melt adhesive film. As for the production technology of the non-sewn hot-melt adhesive film, bonding can be avoided during winding, a cooling facility does not need to be increased, the cost is lower, and the performances and the quality of the adhesive material are higher; furthermore, a product is smooth and aesthetic.

The invention discloses a precise punch which comprises a feeding device, a punching device and a discharging device. The feeding device is connected with a material sending device, and one end of thematerial sending device penetrates the punching device and is connected to the discharging device. One end of the feeding device is connected to a feeding worktable, and a feeding mechanical arm canbe used for transferring a machined workpiece in a workpiece containing disc to the material sending device. The material sending device penetrates a shell and can be used for conveying the machined workpiece to a punching lower die. The end, away from the feeding device, of the material sending device is connected to a discharging worktable, and a discharging mechanical arm can be used for transferring a punched workpiece on the device into the workpiece containing disc. By means of the precise punch, the mechanical arms are used for automatic feeding and discharging, traditional manual workis replaced, the whole process of punching operation of the punching device is automatically executed, manual intervention is not needed, the production efficiency is effectively improved, and the performance quality of the punched workpiece is effectively ensured; and in addition, the punching operation is completed in a relatively independent space, workers can be prevented from making mistakesto stretch hands into the device, and safety during punching is effectively ensured.

The invention belongs to the production field of musical instruments, and particularly relates to a combined-type erhu tuning nut. Erhu is an attractive stringed national instrument and not only can express the deep and miserable scene, but also can paint a state of magnificent momentum, the tone of erhu is close to the human voice and high in emotional rendering force. Since the structure of erhu is simple, and the production method is relatively extensive, inconvenience can be brought to the playing, and a series of problems occur on the aspects such as shifting of the nut, replacement of the tone, intonation calibration, out of tune and the like when a melody of different pitches is played. The intonation calibration of erhu is critical for the playing effect. The combined-type erhu tuning nut integrates a function for limiting the oscillation string length and calibrating the tonality, and the tonality of erhu can be conveniently fixed. By adopting a double-sided adhesive band, the tuning nut is fixed by the double-sided adhesive band in a tying manner, so that the nut is simple and convenient to move; the tuned erhu is deep in low pitch, clear and smooth in medium pitch and clear and cool in high pitch, so that the quality of the erhu - the national treasure can be greatly improved.

The invention discloses a method for preparing a functional coating on the surface of an aluminum alloy selectively. The method for preparing the functional coating on the surface of the aluminum alloy selectively comprises the following steps of: S1. machining an aluminum alloy cavity body and an aluminum alloy mask shell; S2. cleaning the aluminum cavity body and the aluminum alloy mask shell; S3. combining the aluminum alloy cavity body and the aluminum alloy mask shell; S4. depositing a plurality of layers of metal films on a combined body of the aluminum cavity body and the aluminum alloy mask shell; and S5. detaching the aluminum alloy mask shell, thereby obtaining the aluminum alloy cavity body for depositing the plurality of layers of metal films selectively. According to the invention, parts of the aluminum alloy cavity body, which are not required to be coated, are subjected to mask protection by adopting the aluminum alloy mask shell so as to achieve the aim of preparing the functional coating accurately and selectively.

The invention relates to a method for determining thermoforming process parameters of boron-containing microalloyed steel. According to the method, on the basis of true stress sigma data and true strain epsilon data obtained by a thermal simulation experiment, dynamic recrystallization conditions of the boron-containing microalloyed steel are determined; and thermal processing maps and activationenergy maps of different strains are drawn. An area having the minimum activation energy Q change and fluctuation not exceeding 1% in overlapped regions of safety regions in the thermal processing maps and a dynamic recrystallization region is set as a thermoforming process window of the corresponding strain; and a temperature T and a deformation rate epsilon. that correspond to a maximum power dissipation coefficient eta value in the thermoforming process window are thermoforming process parameters of the corresponding strain. Therefore, defects of coarse grain, crystal mixing, and crack of the boron-containing microalloyed steel can be overcome; and the relatively uniform dynamic recrystallization structure can be obtained. The energy utilization rate is high and the efficient productionand good product quality can be ensured.

The invention provides a flexible display panel, a manufacturing method thereof, and a display device, and relates to the technical field of display, so as to solve the problem that the display panel and a glass substrate are hard to separate during the flexible display panel manufacturing process. The flexible display panel comprises a first protection layer, a second protection layer, a flexible substrate and a display component, wherein the flexible substrate is located between the first protection layer and the second protection layer; and the display component is formed on the second protection layer.

The invention relates to an integrated directly-buried double-pipe fixing joint for a directly-buried heat supply pipeline and a calculation method of the integrated directly-buried double-pipe fixingjoint. The double-pipe fixing joint is characterized by comprising a double-pipe fixing joint body composed of an H-shaped component, a water supply pipe section and a water return pipe section, andthe H-shaped component is composed of a web and two wing plates; a water supply pipe section hole and a water return pipe section hole are formed in the web of the H-shaped component, and the water supply pipe section and the water return pipe section penetrate through the water supply pipe section hole and the water return pipe section hole respectively and are symmetrically arranged on the frontside and the back side of the web; a plurality of rib plates are symmetrically arranged on the front side plate surface and the back side plate surface of the web, surround the water supply pipe section and the water return pipe section, are uniformly and symmetrically arranged in the radial direction of the water supply pipe section and the water return pipe section and are connected between thewater supply and return pipe sections and between the water supply and return pipe sections, the wing plates and the side edge of the web; and the outer side of the fixing joint body is coated with aheat preservation layer and a protective layer. The calculation method comprises the steps of calculating thrust torque, calculating the size of the wing plates, determining the size of the web and determining the number of the rib plates. The integrated directly-buried double-pipe fixing joint and the calculation method thereof have the advantages that the one-step formed metal structure fixingjoint replaces a steel and concrete structure fixing pier, and the double-pipe fixing joint is small in size and light in weight, is directly buried underground, and is easy and fast to construct.

Described is a process for producing Si0C-bonded polyether siloxanes branched in the siloxane portion from cyclic branched siloxanes of the D/T type, wherein said process comprises in a first step reacting the mixtures of cyclic branched siloxanes of the D/T type with acetic anhydride optionally in admixture with simple siloxane cycles under acid catalysis to afford acetoxy-bearing branched siloxanes, in a second step performing the equilibration of the acetoxy-modified branched siloxane with superacid, preferably with addition of acetic acid and in a third step reacting the superacid-treatedacetoxysiloxane with polyetherols optionally in the presence of bases and optionally in the presence of an inert solvent.

The invention discloses online battery drying equipment. The online battery drying equipment comprises a closed equipment shell, a vacuum drying room mounted in the equipment shell, a circular conveying mechanism penetrating through the vacuum drying room, and a loading mechanism, a first stacking mechanism, a second stacking mechanism, an unloading mechanism and a batter sampling working room assembled around the circular conveying mechanism in sequence. The battery drying equipment is provided with the battery sampling working room; through a separation plate arranged in the working room, the working room is divided into two independent areas; workers can use an operation window for sampling lithium batteries, and take out samples from a sampling box; and under the condition of not needing to contact with external atmospheric environment, the workers can sample the dried lithium batteries in vacuum, so that the problem of inaccurate detecting result caused by traditional incomplete sampling and casual inspection operations of lithium batteries is solved, the detecting accuracy of the lithium batteries is guaranteed, and the performance and the quality of the lithium batteries areeffectively guaranteed.