21results about How to "Improve molding stability" patented technology

The utility model discloses a kind of heat-conducting silica gel extruding devices, belong to extruding device technical field, including the machine body of silica gel extruder, extruder head, feeding structure and control structure, extruder head is set on the head, feeding structure is set on extruder head, control structure is set on the machine body, control structure connects extruder head and feeding structure, fixedly set on extruder head has discharge pipe, cooling pipe is set on the outside wall of discharge pipe, cooling pipe includes water inlet section, cooling section and water outlet section, one end of cooling section is fixedly connected water inlet section, the other end of cooling section is fixedly connected water outlet section, water inlet section and water outlet section are located in the machine body, cooling section is spirally wound on the outside wall of discharge pipe, fixedly connected with cooling water tank in the machine body, cooling water tank is connected with water pump, water pump is connected control structure, one end of water inlet section is fixedly connected on water pump, one end of water outlet section is fixedly connected on cooling water tank, the utility model has the advantage that the forming stability of silica gel is better.

The invention provides a double-layer jacquard fabric interlayer weaving process and a double-vision artistic effect realization method, and the method comprises the following steps: providing warp yarns, weft yarns and interlayer connecting yarns which are adaptive to double-layer jacquard, and the breaking strength of the interlayer connecting yarns is not less than 3.2 cN / dtex; the method comprises the following steps: importing surface layer jacquard pattern data and inner layer jacquard pattern data into a pattern weaving CAD system, presetting a yarn interweaving threshold value and pattern edge transition parameters of an interlayer connection area, generating a collaborative weaving data table of surface and inner layer jacquard and interlayer connection, marking corresponding interweaving areas of surface layer patterns and inner layer patterns, and carrying out collaborative weaving; the collaborative weaving data table comprises intervention opportunities and interweaving frequency parameters of connecting yarns in each region; according to the invention, by switching the connecting structure in different periods, adapting to the characteristics of the jacquard area and combining the parameters of the connecting yarn and the limitation of the interweaving depth, the complete concealment of the connecting points, the accurate alignment of mirror image jacquard of the surface and inner layers, the control of the dislocation amount within 0.15 mm and the complete and non-split double-visual effect are realized, and the visual requirements of high-end fabrics are met.

The utility model discloses a mother alloy casting mould, including lower mould fixing plate and upper mould fixing plate, the upper mould fixing plate is provided with a pair of upper detachable mould, the surface of upper detachable mould is provided with upper forming groove, the upper mould fixing plate is provided with upper connecting groove, the upper connecting groove is arranged between the two upper detachable mould, and the lower mould fixing plate is provided with lower connecting groove. The upper detachable mold and the lower detachable mold can be directly detached and replaced when mother alloy products of different specifications and shapes need to be produced, and the upper detachable mold and the lower detachable mold can be directly detached and replaced in the casting operation, so that the production efficiency is greatly improved, and the production cost is reduced. A complete and coherent casting channel is formed by the liquid injection opening, the upper connecting groove, the injection opening, the upper forming groove and the lower forming groove, the top of the push rod is arranged in the lower connecting groove, redundant components can be taken out by pushing the push rod after cooling in a communicating pipeline, and accurate guiding is achieved through cooperation of the positioning sleeve and the positioning column in the mold closing process.

The application discloses a kind of convex structure 3D printing method of inner cone parts, belong to 3D printing manufacturing technical field, it includes box, the base is placed in the bottom of the box, the outer side of the base is fixedly installed with portal frame, the first motor is installed in the base side, the fan that is used with the air suction pipe is installed in the working tank, the filter plate is installed in the first fixed block buckle;Through the extension head structure design to the inner wall of inner cone part main body, extension head itself has the effect of strengthening the overall structure support strength of part, the use amount of extension head and part inner wall part support can be greatly reduced when D printing, not only reduce the support material cost, but also can reduce subsequent support piece removal process, avoid to cause damage to extension head, part inner wall when removing support, further improve part forming quality and production efficiency, especially adapt to the precise printing demand of complex convex structure such as inner cone part inner wall extension head with structural strengthening function.

The invention belongs to the technical field of silicon micro-powder, and particularly discloses silicon micro-powder for integrated circuit packaging and a preparation method thereof, the silicon micro-powder is multi-stage modified spherical silicon micro-powder, and the multi-stage modified spherical silicon micro-powder is prepared from basic spherical silicon micro-powder through modification processes of gradient alkali etching pore forming, bifunctional silane grafting and polyaryletherketone oligomer coating in sequence; in the basic powder purification step, precise purification of the industrial-grade silica powder is realized through a combined process of acid pickling, hydrofluoric acid shallow etching, water washing and drying. Wherein the diluted hydrochloric acid can remove metal cation impurities in the silica powder in a targeted manner, and the impurities are prevented from forming a conductive path in the subsequent packaging process, so that the dielectric loss is reduced, and the insulating property of the material is improved; and the shallow etching of the hydrofluoric acid dilute solution can peel off the surface silicon dioxide impurity layer, and meanwhile, the etching depth is controlled to avoid damaging the spherical structure of the silicon micro powder, so that the uniformity of the subsequent modification process is ensured, and a high-quality base material foundation is laid for the subsequent modification step.

The invention relates to the technical field of air conditioner compressor accessory powder metallurgy compression molding machining, in particular to an air conditioner compressor accessory compression molding process which comprises the following steps of a, powder selection and pretreatment, b, material mixing, c, compression molding and d, material receiving. In the material receiving step, a buffering module capable of conducting buffering protection on the green bodies is arranged, the buffering module is used for buffering the green bodies in the discharging process, it is guaranteed that the green bodies are not collided when being obliquely conveyed through a conveying channel, and then the green bodies are prevented from being damaged in the material receiving process of die-casting forming; and the forming stability of green bodies and the processing efficiency of received materials are improved.

This invention relates to the field of food deep processing technology, and particularly to a sodium bicarbonate-assisted open-pore type of high-rehydration instant rice, its preparation method, and its application. The compound dry powder of this invention comprises the following components in parts by weight: 450-550 parts pregelatinized corn starch, 100-200 parts wheat starch, 4-8 parts monoglyceride, 1-3 parts sodium bicarbonate, and 4239-4445 parts indica rice flour. The compound dry powder is used to prepare instant rice, which, under 6-minute rehydration conditions, exhibits a higher rehydration ratio, a higher percentage of intact grains, and a lower dry sample breakage rate. Simultaneously, the finished product moisture content is controlled within the low moisture drying endpoint range of below 8%, providing a basis for the preparation of high-rehydration instant rice.

This invention discloses a mold mechanism for an integral sunroof frame instead of a split sunroof frame, relating to the field of sunroof frame mold technology. It includes a rear template, a support plate, an ejector plate, and a clamping plate connected in sequence. The rear template is provided with split rear mold cores and positioning modules. The split rear mold cores include rear mold core one, rear mold core two, rear mold core three, rear mold core four, rear mold core five, and rear mold core six. The positioning module includes rear mold positioning mold one and rear mold positioning mold two. This application provides a mold mechanism for an integral sunroof frame instead of a split sunroof frame. A hydraulic cylinder drives a slider to move towards the cavity side, closing the side forming area of ​​the H-shaped product. Together with the split rear mold cores, it forms a complete H-shaped product forming cavity. The opening and closing of the side cavity is completed by the hydraulic cylinder-driven slider, with stable action response, adapting to the side forming requirements of H-shaped products. The structure of the split mold cores also reduces the contact resistance between the product and the mold cores, improving demolding smoothness.

This invention discloses an automatic slotting machine for cardboard box production, relating to the field of cardboard box slotting technology. It includes a workbench; a placement platform, located on one side of the workbench, for supporting cardboard to be slotted; a conveying device, located on the placement platform, for conveying the cardboard to the slotting area; a drive device, mounted on the workbench; a cutting blade mechanism, connected to the output end of the drive device and located in the slotting area; and a waste material auxiliary mechanism, located below the cutting blade mechanism. This invention achieves this by sequentially staggering the first side cutting blade group, the second side cutting blade group, and the inner end cutting blade along the rotation direction of the slotting blade disc. This allows the cardboard slot to be formed progressively in the order of cutting on one side, cutting on the other side, and cutting the inner end, reducing the large-area compression contact between the blade group and the cardboard at the same time. This reduces the possibility of collapse in the non-cutting area of ​​the cardboard and improves the forming stability of the slot edge.

The invention provides a reinforced nylon composite material as well as a preparation method and application thereof, and belongs to the technical field of composite materials. According to the invention, the polyadipyl m-xylylenediamine and the inorganic fiber are used as a composite stiffening agent, so that the strength and modulus of the nylon composite material are enhanced; a main antioxidant, an auxiliary antioxidant and an anti-photoaging agent are introduced into the composite additive, so that the nylon composite material has excellent apparent property and excellent forming stability, the product forming time can be effectively shortened, the size stability can be improved, and the problem that the size is unstable after nylon absorbs moisture is solved; meanwhile, basic magnesium sulfate whiskers in the composite additive are combined, and the basic magnesium sulfate whiskers have the characteristics of high rigidity, low density, low warpage and the like; under the auxiliary action of the composite lubricant, the obtained nylon composite material has the advantages of high strength, high modulus, impact resistance, low warpage, low density, high apparent property, excellent dimensional stability and excellent comprehensive performance, and can be widely applied to materials such as plastics instead of steel.

The invention discloses a making method of a low-salt, low-sugar and low-fat dietary vegetable sausage, and relates to the technical field of food processing. The preparation method of the low-salt, low-sugar and low-fat dietary vegetable sausage comprises the following steps: 1, cleaning fresh corn, agaric, carrot and chive, cooking or blanching, dehydrating and chopping or pulping to obtain a composite vegetable base material, pre-cooling and mincing lean pork or chicken breast, and chopping and mixing at low temperature to obtain a viscoelastic meat paste base material; and 2, mixing the composite vegetable base material with the meat paste base material, adding a sugar alcohol sweetening agent, a licorice extract and a yeast extract, and stirring in a vacuum environment to prepare the low-salt, low-sugar and low-fat stuffing. By arranging the exhaust pipeline composed of the circular-truncated-cone-shaped pipe section and the columnar pipe section and enabling the inner diameter of the circular-truncated-cone-shaped pipe section to be gradually reduced in the flowing direction of the stuffing, the continuously-increasing pressure gradient is constructed in the flow channel, and staged and gradient treatment of the high-fiber and low-fat vegetable stuffing is achieved.

A separator according to the present invention comprises, on an organic / inorganic composite porous coating layer, a particulate binder resin comprising a mixture of an acryl-based binder and a PVDF-based binder, and thus has excellent adhesion with an electrode, in a dry state and in a wet state. Accordingly, in a roll-to-roll continuous process, the shape stability and processability of an electrode assembly can be improved, and even in a state of being impregnated with an electrolyte, a strong binding strength between the separator and an electrode can be maintained, and thus high adhesion can be maintained without degrading interfacial resistance characteristics. Thus, inorganic particles can be well fixed without detachment, thereby improving the shape stability of the separator. Accordingly, the heat stability and insulating properties of a battery can be improved, and due to a porous structure with an interstitial volume between particles in the porous coating layer, ion conduction between an electrode and the separator is not hindered, and thus the rate of resistance increase is low and lifespan characteristics are excellent.

The invention discloses a high-temperature-resistant hot melt adhesive and a preparation method thereof, and relates to the technical field of hot melt adhesives. The high-temperature-resistant hot melt adhesive is prepared from the following raw materials in parts by weight: 25 to 35 parts of modified polyimide resin, 20 to 30 parts of modified benzoxazine resin, 8 to 12 parts of carboxyl-terminated nitrile rubber, 5 to 8 parts of C5 / C9 copolymerized petroleum resin, 3 to 5 parts of hydrophobic modified nano silicon dioxide, 1 to 2 parts of silicone powder, 0.5 to 1.0 part of antioxidant 1010, 0.3 to 0.8 part of zinc stearate and 0.05 to 0.1 part of tetrabutylammonium bromide. The high-temperature-resistant hot melt adhesive is scientific in raw material ratio, core resin is modified to improve heat resistance and compatibility, filler such as hydrophobic nano silicon dioxide is added to enhance performance, the preparation process is controllable, nitrogen protection is achieved in the whole process, moisture absorption is prevented through granulation and drying treatment, and a finished product is excellent in high-temperature resistance, good in comprehensive performance and good in storage stability.

This application relates to the field of ceramic powder processing, specifically disclosing a method for preparing spherical aluminum nitride powder, comprising the following steps: S1, dissolving a water-soluble organic carbon source in water by stirring to obtain a mixed solution; then adding alumina, mixing and stirring evenly, with the mass ratio of the water-soluble organic carbon source to alumina being 1:1-2, to obtain a reaction precursor; S2, subjecting the reaction precursor to spray drying and dry pressing to obtain a block; S3, subjecting the block to degreasing, carbonization, and nitriding reduction treatments to obtain a semi-finished product; S4, subjecting the semi-finished product to decarbonization, cooling, and pulverization to obtain the finished aluminum nitride powder; which has the advantages of high sphericity, high purity, and good thermal conductivity.

The utility model discloses an axial flow fan and an air conditioner, and belongs to the technical field of air conditioners. The axial flow fan comprises a hub and blades, the blades are connected to the peripheral wall of the hub, each blade is provided with a front edge, a rear edge, an inner edge and an outer edge, a plurality of reinforcing ribs are arranged on the suction surface of each blade, the reinforcing ribs are close to the front edges of the blades and close to the outer edges of the blades, and the reinforcing ribs are arranged on the outer edges of the blades. And the plurality of reinforcing ribs are projected on a plane vertical to the axis of the axial flow fan and are arranged along the radial direction of the axial flow fan. The air conditioner comprises the axial fan. According to the axial flow fan, the forming stability of the axial flow fan can be improved, cost is reduced, and noise is reduced.

The invention relates to a tunnel ditch cable trough trolley and a construction method thereof.The tunnel ditch cable trough trolley comprises a trolley frame and a ditch cable trough formwork assembly, and the left side and the right side of the trolley frame are each provided with a plurality of transverse moving lifting mechanisms at intervals in the tunnel extending direction; the transverse moving and lifting mechanism comprises a transverse moving mechanism for driving the ditch cable trough formwork assembly to transversely move and a lifting mechanism for driving the ditch cable trough formwork assembly to ascend and descend, the two ends of the groove formwork are each provided with an end steel formwork assembly, and the end steel formwork assemblies can stretch out and draw back in the direction perpendicular to the groove formwork. The end steel formwork assembly is composed of a plurality of end steel formworks, and one end of each end steel formwork abuts against the tunnel side wall, so that the tunnel side wall, the vertical wall formwork and the end steel formwork assembly can be matched with one another to form a relatively-closed die cavity. By means of the trolley and the matched construction method, the problems that in existing tunnel ditch and cable trough construction, the end plugging effect is poor, the forming quality is not easy to control, and the construction efficiency is low are solved.

The application discloses a preparation method of a molybdenum end cap and the molybdenum end cap prepared thereby, and relates to the field of metal products. The preparation method of the molybdenum end cap comprises the following steps: uniformly mixing molybdenum powder, a binder and a solvent according to a weight ratio, granulating and removing the solvent to obtain molybdenum particles; the binder comprises isocyanate-terminated polyurethane prepolymer, polyglycol monomethyl ether glycidyl ether, polyvinyl butyral and a diluent according to a weight ratio of (20-30):(8-12):(35-40):100; the molybdenum particles are compression molded to obtain a molybdenum end cap before debinding; and the molybdenum end cap before debinding is subjected to debinding, wherein the debinding comprises the steps of primary debinding, secondary debinding and tertiary debinding, the temperature of the primary debinding is 560-780 DEG C, the temperature of the secondary debinding is 880-950 DEG C, and the temperature of the tertiary debinding is 1200-1300 DEG C. The application can improve the stability of the molybdenum particles forming the molybdenum end cap, and simultaneously improve the problem that organic substances are easily left in the molybdenum end cap, thereby causing the purity of the molybdenum end cap to be not high.

The application discloses a nano-enhanced quick-setting viscosity increasing agent and application thereof in concrete. The quick-setting viscosity increasing agent comprises an aluminum salt quick-setting component, surface modified nano-silica, an ion triggered viscosity increasing polymer, an organic acid stabilizing component and water. The quick-setting viscosity increasing agent can be stably dispersed under acidic storage conditions, and after being contacted with a cement-based material, a viscosity increasing network is formed under an alkaline environment and the action of Ca2+, so that quick setting and viscosity increasing are synergized. The surface modified nano-silica has good dispersion stability and nucleation promoting effect, and the ion triggered viscosity increasing polymer can quickly improve the cohesiveness of a paste and the structure establishment speed. The prepared quick-setting viscosity increasing agent has the advantages of good storage stability, fast setting speed, strong wall hanging property, low rebound rate and good strength maintenance, and can be applied to sprayed concrete, sprayed mortar, quick repair mortar and facade printing cement-based materials.

This invention belongs to the field of disinfection materials technology, specifically relating to a long-acting sustained-release sodium chlorite disinfectant gel and its preparation method. The disinfectant gel comprises deionized water, sodium chlorite, polyvinyl alcohol, sodium alginate, hydroxypropyl methylcellulose, carbomer, glycerol, gluconate-δ-lactone, sodium citrate, disodium EDTA, anhydrous calcium chloride, boric acid, sodium chloride, polyguanidine silicate aluminum hydrated sustained-release microspheres, and a quaternary ammonium borate ester stabilized-release gel core. During preparation, a weakly buffered composite gel matrix is ​​first formed, then two sustained-release modifying components and a sodium chlorite solution are added. The gel is obtained through lactone sustained-release acidification and calcium ion cross-linking curing. This invention can reduce the burst release of sodium chlorite and improve gel stability and sustained-release disinfection durability.

The application discloses a kind of stepped seed cotton packing hydraulic control methods, belong to agricultural machinery technical field;The method is realized by four accurate control stages: initial pressure maintaining stage, forms stable cotton core;Pressure stepped increase stage, through the discrete step lifting of rocker arm oil cylinder, generate stepped incremental tension, each stage is lifted ΔP until reaches maximum set pressure P max ;Pressure maintaining stage, dynamically keep the belt pressure as P max , when cotton bale diameter reaches set value D3, stop feeding seed cotton, keep system pressure as P max To set time t4;Diameter maintaining stage, quickly adjust rocker arm angle to make cotton bale diameter reach final set value D4, and keep to set time t5;The application effectively solves the problems of poor cotton bale forming stability and uneven density by unique stepped pressure control strategy, combined with sensor feedback and the synergistic effect of hydraulic system, significantly improves cotton bale forming quality and work efficiency.