19results about How to "Simple molding" patented technology

A patient interface pad for use in the field of CPAP and for delivering a breathable pressurized gas to a patient to treat sleep breathing disorders, comprising a rigid portion and an elastic portion, wherein the elastic part is divided into an elastic part main body and a connecting part, the elastic part main body is at least partially in contact with the face of a patient and forms sealing during use, the connecting part is connected with the rigid part, and the elastic part main body is provided with a plurality of areas, so that different areas of the patient interface pad have different change degrees; the patient interface pad is used for adjusting pressure generated by the patient interface pad on the face in different areas of the face, and specifically comprises an adjusting area used for being compatible with different patient face sizes, nose heights and widths, a supporting area used for supporting the patient interface pad and a stabilizing area used for preventing the patient interface pad from turning outwards at an opening facing the patient. Wherein the adjustment region may be provided with a nasal-side adjustment portion that makes the patient interface pad further compatible with the patient's nose.

The invention relates to a cooker formed by combining a metal heating plate, a waterproof film and a ceramic waterproof and hydrophobic blanket heat insulation material in a main body container. By means of the waterproof structure of the main body container and the pressure regulating valve used for discharging internal expansion pressure, the ceramic waterproof and hydrophobic blanket thermal insulation material and the waterproof layer are endowed with waterproof and hydrophobic functions so as to prevent water from flowing into the heating layer, so that the combination proportion of the heating layer composition can be conveniently regulated; and therefore, the required heating temperature is realized. The manufacturing method of the microwave cooker with the waterproof function and the high-performance ceramic heating body is provided.

The present invention discloses an additive manufacturing molding method for high-brittle color gold, firstly, the precious metal monomer powder is dispersed with a photosensitive resin, an anti-settling agent and a dispersant to form a stable suspension; the suspension is placed in a DLP type sinking 3D printer, and a green embryo light-curing additive manufacturing is performed to form a green embryo; the green embryo is placed in an atmosphere heat treatment furnace, and argon gas is introduced for degreasing to remove organic matter in the green embryo; the green embryo after degreasing is continuously heated to an alloying temperature point, and an alloying heat treatment is performed; the alloyed green embryo is continuously heated to a sintering temperature, argon gas is introduced and cooled to below 300°C, and the green embryo is taken out and cooled in the air to obtain a finished product. The molding method in the present invention has the advantages of simple molding process and no mold is required, no separate alloying process is required, low heat treatment temperature, avoiding alloy component segregation, high compatibility of powder material with manufacturing process, low material loss, and reusable residual raw materials, etc., and is suitable for materials that are inherently brittle and difficult to process in traditional ways.

The present invention relates to a polyimide powder and a preparation method therefor. With respect to the polyimide powder and the preparation method therefor, according to the present invention, a preparation process is simplified such that process efficiency can be improved, a polyimide is prepared in the form of a powder so as to facilitate molding thereof, and the polyimide has a low precipitation temperature and a high intrinsic viscosity so as to facilitate processing thereof, and has a uniform particle size so as to have excellent processability.

The invention discloses an integral forming preparation method of a glass tube with a polygonal cross section, which comprises the following steps: S1, vertically arranging a solid metal mold with a polygonal cross section in a glass outer sleeve with a sealed bottom and an open top, and ensuring that the solid metal mold and the glass outer sleeve are coaxially positioned; s2, the glass outer sleeve is vacuumized, so that pressure difference is formed between the interior of the glass outer sleeve and the external atmosphere; s3, the to-be-formed part of the glass outer sleeve is heated to be softened, and the softened part is attached to the mold to be formed under the action of the internal and external pressure difference; s4, the formed glass outer sleeve is moved to the room temperature to be cooled, and the mold is separated from the formed glass outer sleeve according to the characteristics of thermal expansion and cold contraction; and S5, cutting the molded glass outer sleeve to obtain a glass tube with a polygonal cross section, and grinding and polishing the glass tube with the polygonal cross section. The preparation process is easy to operate, less in equipment use and simple in forming process, the production period can be greatly shortened, the preparation efficiency is improved, and the quality and performance of a finished product are guaranteed.

The present invention relates to the field of battery technology, and discloses a top cover assembly and a battery, wherein the top cover assembly comprises: a pole, wherein the outer peripheral surface of the pole is configured with a first groove; a cover plate, comprising a cover plate body and a mounting hole penetrating the cover plate body, wherein the pole is arranged in the mounting hole, and a second recessed portion is configured on one side of the cover plate body close to the mounting hole; a sealing assembly, which is arranged between the cover plate and the pole, and wherein the sealing assembly has a first protrusion and a second protrusion, wherein the first protrusion cooperates with the first groove, and the second protrusion cooperates with the second recessed portion, so as to seal and connect the pole and the cover plate, and limit the displacement of the pole relative to the cover plate. The present invention avoids the relative displacement of the pole and the sealing assembly by inserting the first protrusion into the first groove; avoids the relative displacement of the cover plate and the sealing assembly by inserting the second protrusion into the second recessed portion, thereby realizing the relative fixation of the pole and the cover plate, effectively avoiding the relative displacement between the pole and the cover plate, and avoiding the loosening between the pole and the cover plate.

The embodiment of the present application provides a substrate section and an aerosol generating article, the substrate section is configured to be formed by winding or gathering the substrate section, the substrate section comprises a sheet-shaped substrate, the sheet-shaped substrate comprises a plurality of substrate strips arranged in parallel and at intervals, at least partial connecting areas are formed between adjacent substrate strips, the connecting areas connect the adjacent substrate strips, and the sheet-shaped substrate can be heated to generate aerosol. Wherein, at least partial areas of the sheet-shaped substrate are different from other areas of the sheet-shaped substrate. The substrate section provided by the present application can adjust the speed effect and duration of generating aerosol of the substrate strips in different areas according to different heating modes, so as to adapt to the temperature distribution characteristics of different heating modes, so that the substrate section as a whole can uniformly release aerosol, and the stability of the substrate section in generating aerosol is improved.

The invention relates to the technical field of cement preparation, and discloses a method for preparing an all-solid waste cement product by utilizing cement kiln tail flue gas mineralization, which comprises the following steps: step 1, magnesium slag preparation; step 2, preparing magnesium slag slurry; step 3, forming; step 4, mineralization treatment; 5, mineralization condition control; and step 6, standing and maintaining. The Pidgeon process magnesium slag is used as a main raw material, the magnesium slag is an industrial byproduct generated in the steel production process, the complexity of raw material purchase is reduced, the fineness of the magnesium slag powder is specified to be smaller than 75 microns, the consistency and reliability of the raw material are ensured, variables in the post-treatment process are reduced, and the production cost is reduced. CO2 waste gas generated by the cement plant is used as a mineralization source, so that the complexity of purchasing external gas is reduced, meanwhile, cyclic utilization of resources is realized, and the beneficial effects of simplicity and convenience in operation and high efficiency are achieved.

This invention provides a dielectric ion exchange membrane, its preparation method, and its application, relating to the field of membrane material preparation technology. The dielectric ion exchange membrane includes a substrate and an ion exchange membrane coated on the surface of the substrate. The ion exchange membrane comprises polyvinyl alcohol, an ion system, a UV-curable monomer, and a photoinitiator. By using UV curing technology, the crosslinking process and solvent evaporation can be precisely controlled during membrane formation, ensuring a smooth membrane surface and avoiding membrane curling caused by uneven shrinkage. The introduction of the UV-curable monomer is to form a crosslinked network under UV irradiation, inhibiting macroscopic structural flow and creep of the ion exchange membrane during film formation and service, improving the mechanical stability of the membrane, and forming a stable crosslinked structure, thereby forming a structurally stable dielectric ion exchange membrane and effectively preventing membrane curling during drying.

The utility model provides an airing and hanging assembly and an airing machine, the airing and hanging assembly comprises an airing rod provided with at least one hook placing groove, the airing rod comprises a first side, a load bearing side and a second side which are sequentially arranged in the circumferential direction, the hook placing groove is formed in the load bearing side, and the first side and the second side which are oppositely arranged are respectively communicated to form a first notch and a second notch; in the same hook containing groove, the distance from the two ends of the clothes airing rod to the first notch is not equal to the distance from the two ends of the clothes airing rod to the second notch. The hook forms an acute angle with the clothesline pole under the limiting and restraining effects of the first notch and the second notch, and the posture of the hook enables the clothes supporting part of the clothes hanger to form an acute angle relative to the extending direction of the clothesline pole, so that the space occupied by clothes supported and hung on the clothes supporting part on the two sides of the clothesline pole is reduced, and a larger space is saved for a drying place; to-be-aired clothes are allowed to be hung on the two clothes airing rods arranged side by side at the same time, and the clothes airing rods and the quilt airing rods are allowed to be arranged side by side, so that the clothes and the quilts are aired at the same time.

The utility model relates to a die-casting mold core structure for an automobile engine valve chamber cover, which comprises a mold core structure, a sprue structure, a sprue protection seat and an exhaust block component, the sprue structure is mounted in the middle of the front side of the mold core structure, the sprue protection seat is mounted at the lower end of the sprue structure in a sleeving manner, and the exhaust block component is mounted on the sprue protection seat. Exhaust block assemblies are installed on the rear side of the mold core structure side by side, the mold core structure comprises an upper mold core structure, a lower mold core structure and a boss structure, the boss structure is arranged in the middle of the upper end face of the lower mold core structure, and a mold cavity structure is arranged between the upper mold core structure and the lower mold core structure; two longitudinal bolt mounting blocks are symmetrically mounted at the two ends above the mold core structure, hole position bolts with the lower ends inserted into the mold cavity structure are mounted at the front ends of the longitudinal bolt mounting blocks, and two exhaust block assemblies communicated with the mold cavity structure are symmetrically mounted on the rear side of the mold core structure. The utility model has the characteristics of simplifying the mould, improving the product quality, reducing the production cost and the like.

The application discloses a dehydrogenation catalyst and a preparation method and application of the dehydrogenation catalyst in synthesis of OPP from cyclohexanone dimers. The preparation method of the dehydrogenation catalyst comprises the following steps: S1, a mixture containing an alumina source, an additive and a binder is extruded, dried and calcined to obtain the alumina carrier; the alumina source comprises macroporous pseudo-boehmite and microporous pseudo-boehmite; the macroporous pseudo-boehmite has a pore volume of 0.9-1.1 cm 3 / g; the microporous pseudo-boehmite has a pore volume of 0.4-0.6 cm 3 / g; the additive comprises a potassium salt; S2, the carrier is immersed in a solution containing a noble metal salt, and the obtained impregnated product is dried and calcined; the conditions of the immersion meet at least one of the following conditions: 1) the temperature of the immersion is 40-90 DEG C; 2) the pressure of the immersion is -1-0 MPa and does not include 0 MPa. The preparation method is simple, and the additive does not need to be secondarily impregnated; and the obtained dehydrogenation catalyst has the advantages of high carbon deposition resistance, excellent stability and high catalytic activity.

The present invention discloses a multi-energy field sintering device and method for high-temperature alloy micro-sintered parts, belonging to the field of powder metallurgy processing technology, in order to solve the problems existing in the current micro-sintered parts, especially the micro-gear manufacturing method, such as the difficulty in positioning the workpiece, the increase in friction resistance under high temperature environment, the difficulty in demoulding, the loss of mechanical integrity caused by the change of material microstructure, the aggravation of mold wear, and the scale effect. The present invention includes a die assembly, an insulating assembly, an internal insulating sintering mold, a fixed mold, a temperature control system, a conductive voltage head assembly and a vibration device. During sintering, the second phase particle precipitation promotion stage, the recrystallization promotion stage, the uniform growth stage of recrystallized particles, the core toughening stage and the tooth surface hardening stage are carried out. The production efficiency of micro-sintered parts is greatly improved, and the forming and characterization integrated manufacturing of micro-sintered parts is realized, and the peripheral structure performance of the obtained sintered parts is greatly improved.

The utility model provides a water surface cleaning robot which is applied to the technical field of water surface cleaning. The lifting basket comprises a shell, a lifting basket and a locking mechanism. One end of the lifting basket is arranged to be of a detachable opening structure, a lifting handle is arranged on the lifting basket, and a rotating shaft and a rotating pin are arranged on the lifting handle. A locking mechanism is formed by combining the base and the upper frame, so that the rotating pin can be matched with the locking mechanism to lock and unlock the basket; compared with an integrally-formed locking mechanism, the locking mechanism is simple in structure, and due to the fact that the locking mechanism is formed by combining two parts, dies of the parts are simplified, and manufacturing cost is reduced.

The utility model relates to the technical field of dies, in particular to an aluminum product machining die which comprises a bottom plate, supporting plates are fixedly connected to the left side and the right side of the upper end of the bottom plate, and first telescopic air cylinders are fixedly connected to the four corners of the ends, close to each other, of the two supporting plates. The output ends of the four first telescopic air cylinders on the left side and the output ends of the four first telescopic air cylinders on the right side are jointly and fixedly connected with mold bodies, and the upper portions between the two supporting plates and the upper portions between the two mold bodies are jointly and fixedly connected with protection mechanisms. According to the die for machining the aluminum products, the protection mechanism is fixedly connected to the upper portions between the two supporting plates and the upper portions between the two die bodies, the protection mechanism is formed by connecting the two protection plates in a sliding mode, and when the die is used, the protection mechanism can protect driving equipment in the die; and hot aluminum water is prevented from adhering to driving equipment in the device to cause damage to the device, and the service life of the device can be prolonged.

The utility model relates to the technical field of rocket combustion chambers, in particular to a solid rocket engine combustion chamber front end socket heat insulation layer bonding structure which comprises a front end socket shell, an ethylene propylene diene monomer heat insulation layer is bonded to the inner wall of the front end socket shell, a positioning ring is installed on one side of the front end socket shell, and a vacuum bag is arranged on the surface of the front end socket shell in a sleeved mode. A first air nozzle is arranged on the lower surface of the vacuum bag and connected with the vacuum bag through a compression nut, a second air nozzle is installed on the lower surface of the vacuum bag, the first air nozzle and the second air nozzle are arranged in a mirror symmetry mode, and a breathable felt is arranged on the side, close to the vacuum bag, of the ethylene propylene diene monomer heat insulation layer. Bonding forming of the metal shell and the rubber heat insulation layer is achieved through a vacuum autoclave method, bonding of the metal shell and the rubber heat insulation layer which are complex in structure is achieved, bonding is firm, the molded surface of the heat insulation layer is complete and free of bulge cracks, the forming process is simple, and the working efficiency and the production quality of equipment are improved.

The invention provides rotary forming equipment and method. The rotary forming equipment comprises a rotational molding barrel, a transparent part, a heating assembly, a cantilever shaft, a rotational molding rack, a ventilation pipe, a gas assembly and a driving assembly. The rotational molding cylinder is a hollow cylinder with two through ends, and the axis is parallel to the horizontal plane; two ends of the rotational molding cylinder are respectively connected with the front end cover and the rear end cover; the diameter of the transparent part is greater than the inner diameter of the rotational molding cylinder body; the transparent part is arranged between the front end cover and the rotational molding cylinder body; the heating assembly is connected with the peripheral surface of the rotational molding barrel; one end of the cantilever shaft is fixedly connected with the rear end cover, and the other end is rotationally connected with the rotational molding rack; the cantilever shaft is connected with the driving assembly; one end of the breather pipe is arranged on the rotational molding barrel, and the other end of the breather pipe is rotationally connected with the gas assembly; the breather pipe is connected with the rear end cover. According to the rotational molding equipment, materials are fused in the metal rotational molding barrel, it is guaranteed that the materials are heated, and the transparent part is arranged at the front end of the rotational molding barrel so that real-time observation can be achieved.

The invention relates to the technical field of vehicles, and discloses a floor framework, a seat assembly, a floor assembly and a vehicle, a seat front cross beam, a seat rear cross beam, a first side reinforcing part and a second side reinforcing part are integrated to form the integrally formed floor framework, the number of parts of the floor framework is reduced, and the cost is reduced. Connection between mutually independent parts is omitted, so that the forming process of the floor framework is simpler, and the processing efficiency of the floor framework is improved; the integration degree of the floor framework can be improved, the size control of the floor framework is more accurate, the size precision is improved, and size errors caused by welding of independent components are avoided; the connecting strength of the seat framework, the seat front cross beam and the seat rear cross beam can be improved, and the safety and reliability of the floor framework are improved; and the performance of the area near the seat can be improved, and the user perception experience is improved. By arranging the second side reinforcing piece, the structural strength, the anti-collision performance, the reliability and the stability of the whole floor framework can be improved.

This invention relates to a front bulkhead assembly, a vehicle, and a method for manufacturing the front bulkhead assembly. The front bulkhead assembly includes an upper front bulkhead panel and a lower front bulkhead panel. The upper front bulkhead panel includes an upper panel body and a wheel arch clearance portion. The wheel arch clearance portion arches rearward relative to the upper panel body. The upper part of the lower front bulkhead panel is connected to the lower part of the upper panel body and the lower part of the wheel arch clearance portion. The method for manufacturing the front bulkhead assembly includes: manufacturing the upper front bulkhead panel: machining a front bulkhead panel process component, wherein the area on it corresponding to the wheel arch clearance portion is in an unfolded state; performing precision machining on the front bulkhead panel process component, shaping the second rib groove structure to the correct position, and folding and arching the wheel arch clearance portion to the correct position; manufacturing the lower front bulkhead panel; and connecting the upper and lower front bulkhead panels. This invention can reduce the machining depth of the wheel arch clearance portion, which is beneficial for simplifying molds, improving material utilization, and reducing costs.