73results about How to "Solve difficult molding" patented technology

The invention relates to a weight-losing meal replacing biscuit and a making method thereof, and belongs to the technical field of nutrition and food science. A high-protein high-fiber netlike stereo structure is formed by a low-temperature baking technology so as to solve the problems that the high-protein high-fiber biscuit is difficulty shaped, is not dried thoroughly and is burned in baking; the biscuit has more balanced nutritional structure, prolongs the emptying time of the stomach, eliminates hunger and hidden hunger, and ensures the weight losing effect; by adding unique stachyose, the biscuit has excellent effects on the aspects of improving the intestinal environment and preventing constipation; and apple polyphenol and collagen have the effect of beautifying the skin and can relieve the universal skin nutrition problem in the weight losing process, so that the weight losing process is more health and effective.

The invention relates to a rubber compound for a rubber for coating a chemical fiber bleaching rubber roll. The rubber compound comprises ethylene propylene diene monomer, white carbon black, paraffin oil, polymeric liquid plasticizers (such as oligomer esters, liquid ethylene propylene methylene and liquid high vinyl polybutadiene), sulfur, accelerating agents, dicumyl peroxide and other auxiliaries. The rubber compound has the characteristics of high hardness (the Shore A hardness is 90-95 degrees), white color, excellent bleaching liquid sodium hypochlorite resistance, good processability and suitability for covering and forming on a rubber roll extrusion and winding covering machine.

The invention discloses a method for preparing an egg substitute based on soy isolate protein and a product. The method comprises the following steps of mixing soy isolate protein with water, sequentially adding salt, pigment and flavoring agent, and carrying out shearing, stirring and mixing separately; then adding vegetable oil and soya bean lecithin, and carrying out emulsification reaction through shearing and stirring; adding a hydrophilic polysaccharide substance thereto, wherein the hydrophilic polysaccharide substance is a mixture of gellan gum and cassava starch; adding mTG enzyme, and continuously stirring at the temperature of 45-55 DEG C; and carrying out enzyme deactivation treatment to obtain the egg substitute. The gel quality of the soy isolate protein in the heating process is improved by adding the hydrophilic polysaccharide substance which comprises the gellan gum and the cassava starch, and the problems of loose structure and difficulty in forming of a plant proteingel product are solved under the specific temperature condition by utilizing the covalent cross-linking effect of the mTG enzyme and the soy isolate protein; and the invention provides a novel egg substitute and a processing technology thereof.

The invention relates to a lightweight forsterite insulating brick and a manufacturing method thereof. The invention adopts a technical proposal that the insulating brick is prepared from the following raw materials in portion by weight: 60 to 70 portions of forsterite sand of 1 to 0.5 millimeter, 15 to 25 portions of magnesite of 1 to 0.5 millimeter, 5 to 15 portions of magnesite powder of less than or equal to 0.088 millimeter, and 5 to 10 portions of SiO2 micro powder of less than or equal to 2mu m; and the adding amount of a bonding agent is 5 to 15 percent of the gross weight of the raw materials. The lightweight forsterite insulating brick has the advantages of small volume weight, low heat conduction coefficient, good heat insulation effect, and high normal pressure strength. The manufacturing method adopts a hydraulic press to mold, not only can solve the problems such as difficult molding and uneven density of green bricks, is easy to strip a mold, does not need to cut a finished product, simultaneously reduces energy consumption, saves resource, reduces discharge of pollutants, and protects environment.

The invention discloses a method for molding a coaxial dielectric filter green body. The method comprises the following steps: preparing a ceramic-based diaphragm, and cutting; disassembling the device structure into a group of plane figures from the vertical plane of a laminating direction according to the thickness of the diaphragm, and performing pattern transfer on the cut diaphragm; laminating the pattern transferred diaphragm in sequence until the total thickness of the diaphragm reaches a set device thickness, and heating and pressurizing the layered diaphragms to form a molded ceramic blank; degreasing and sintering the molded ceramic blank body to obtain the required ceramic device green body. According to the process, the problem that a complex ceramic device is hard to mold and limited in application can be solved, the thought of integral molding assisted by later process, which is followed by a traditional method is bypassed, the problems of low yield, poor operability, low flexibility, high broken rate of filter green bodies, offset out of control of a coupling structure, reduced bandpass filtering capability and the like are solved, and preparation of the ceramic device green body with complicated structure can be effectively realized.

The invention discloses a technology for forming maintenance-free lead-acid battery pole plates, comprising the following steps: (1) heating to melt an alloy lead liquid in a melting furnace; (2) casting the alloy lead liquid into lead strips by using a casting machine; (3) winding the lead strips by using a winder; (4) delivering the lead strips to a stamping machine and stamping the lead strips into plate grid strips (1), wherein uniform rectangular holes (2) are formed in the middle of each plate grid strip (1), ribs (3) are arranged among the holes (2), and edge and corner lead strips (4) used for cutting plugs are arranged on two sides of each plate grid strip; (5) winding the plate grid strips by using the winder; and (6) coating the plate grid strips by using a plate coating machine and splitting the plate grid strips by using a plate splitting mold to form lead-acid battery pole plates. The technology for forming maintenance-free lead-acid battery pole plates during lead-acid battery production can improve the service life, the quality and the specific energy of a lead-acid battery.

A phase-change heat storage material is provided. The phase-change heat storage material includes carbonate and a ceramic matrix. The granularity of the carbonate is 2-10 [mu]m, and the granularity of the ceramic matrix is 1-10 [mu]m. The phase-change heat storage material has a high heat storage density and high thermal conductivity, the heat storage density of the material can be 700 kJ/kg or above, and the thermal conductivity of the material can be 4.5 w/m.k or above. The number of times of cyclic use of the material is greatly increased and can be 19000 or above.

The invention discloses a lost foam casting method comprising the steps of 1. taking foam as a material, molding a foam die which is the same as a cast in shape, preserving a sprue gate on the foam die; 2. coating a high-temperature-resistant poromeric material on the foam die, and baking for 4-7 hours in the environment below 45 DEG C; 3. paving roughing sand on the foam die, carrying out three-dimensional ramming filling from the periphery to the middle so as to discharge gas in the sand; 4. casting inwards from the sprue gate under the effect of negative pressure; and 5. cleaning shakeout to obtain the cast. The foam die is taken as a casting mold, so that on one hand, the problem that the metal die casting mold is difficult to process is solved; and on the other hand, the problem that the sand die casting mold is not easy to mold is solved. The foam die can be produced by batch due to the plasticity that the foam die is easy to process. Therefore, the casting mold is high in processing efficiency, and the material and device costs in the molding process of the foam die are low. Thus, the production cost also can be effectively reduced in comparison with the entire casting process.

The invention discloses a casting method of an ultrafine high-nickel-content air tube. The method comprises following four steps: core preparing, moulding, pouring and sand knock-out. The method is mainly characterized in that: a pouring process of the method adopts a top pouring manner, a product is turned transversely by 90 degrees and poured, the problem that high-nickel-content tubes having a diameter of 26 mm, an inner diameter of 14 mm and a wall thickness of 4 mm are difficult to cast and mould is overcome by controlling the pouring temperature, speed and time, a process yield of the method is high, moulding operation is convenient, the consumption amount of metal liquids is small, the production cost is reduced, and requirements on the large-scale production efficiency are satisfied.

The invention discloses a rotary type tubular tissue biological 3D printing device and a method thereof. The rotary type tubular tissue biological 3D printing device comprises a rack bed body, an air source, a lifting mechanism assembly, a controller, a rotary connecting tray assembly, a spray head drive assembly and the like, wherein under the control of the controller, an air pressure spray head moves to the position of a cylindrical bracket; an air source is used for supplying air to the air pressure spray head by virtue of an air tube for pressing out a biological material, and a motor b of the rotary connecting tray assembly drives a rotary tray to carry out rotary motion; after the rotary tray rotates by one circle, pneumatic spray heads move by a specified distance in a radial direction to print a next position. When one layer is printed, a motor a drives the lifting mechanism assembly to control the rotary connecting tray assembly to move downwards, so that printing of a tubular tissue is realized. By increasing the group number of the pneumatic spray heads, the printing of the tubular tissue with a heterostructure can be realized. The rotary type tubular tissue biological 3D printing device is simple and delicate in structural concept, liable to realize automatic control, and capable of printing various materials, so that the printing efficiency is improved; and the problem that the tubular tissue is not liable to print and form is effectively solved.

The invention provides a mutual-nested topology pipeline type structure and an overall forming method. The structure comprises an internal complex material topology pipeline, an external complex material shell and a form maintaining core material between the internal complex material topology pipeline and the external complex material shell. By adopting the concepts of multi-step pre-pressing andone-piece curing as well as flexible utilization of the form maintaining core material, the problem that molding and demolding of a one-piece complex structure with mutually nested pipeline and shellare difficult is solved, the integrity of the internal structure of complex material products is guaranteed, and the structural strength, the surface quality, the product preparation efficiency and the environment adaptability of products are greatly improved.

The invention relates to the technical field of desulfurization catalytic materials, in particular to an MOF-based cotton cloth immobilized polyacid catalytic material and a preparation method and application thereof.The MOF-based cotton cloth immobilized polyacid catalytic material is prepared from MOF-based cotton cloth and Keggin type phosphorus molybdenum tungsten type polyacid immobilized onthe MOF-based cotton cloth; the MOF-based cotton cloth is cotton cloth and an MOF material growing on the cotton cloth. According to the prepared MOF-based cotton cloth polyacid catalytic material, the problem that the MOF-based polyacid catalytic material is not easy to form can be solved, the preparation process is simple, the prepared MOF-based cotton cloth polyacid desulfurization catalytic material has a good desulfurization effect when used in a gasoline and diesel oil simulation system, and the desulfurization rate of the prepared cotton cloth @MIL-101-NH2-POM can reach up to 100%. Whenthe cotton cloth-coated @MIL-101-NH2-POM is repeatedly used for 12 times, the desulfurization rate of the cotton cloth-coated @MIL-101-NH2-POM can still reach 96%.

The invention discloses a wear-resisting high-temperature-resistant high molecular material formula. The material is prepared from the following raw materials in parts by weight: 100 parts of ultra high molecular weight polyethylene, 2 to 3 parts of graphene, 3 to 4 parts of talcum powder, 1 to 2 parts of glass beads, 2 to 5 parts of silicon dioxide and 4 to 5 parts of accessory ingredient. According to the formula provided by the invention, the raw materials including the graphene, the talcum powder, the glass beads, the silicon dioxide and the like are used for performing reinforcing and modifying treatment on the ultra high molecular weight polyethylene to improve the mechanical performance of the same, the prepared material does not only have the own excellent performance of the ultra high molecular weight polyethylene, and the indexes of hardness, toughness, high-temperature resistance, wear resistance and the like of the prepared material are all improved, devices for a pump and a valve made from the modified ultra high molecular weight polyethylene material are long in service life and safe and reliable in fireproof performance.

The invention discloses a refining process of a polyoxymethylene dimethyl ether condensation product. The process includes: carrying out hydrolysis reaction on water, formaldehyde and formic acid in acondensation equilibrium product under the action of a catalyst, enabling the produced active hydrogen to reduce unhydrolyzed formaldehyde and methyl formate into methanol under the action of the catalyst, thus reaching the multi-effect refining purpose of aldehyde removal, deacidification, degreasing and dehydration of a condensation equilibrium product, and sending the refined product to a subsequent separation unit. According to the invention, the chemical characteristics of a small amount of water, formaldehyde, formic acid and methyl formate in the condensation equilibrium product are skillfully utilized, a hydrolysis reduction reaction network is formed under the action of a catalyst, formaldehyde, formic acid, methyl formate and water in the condensation equilibrium product react with one another to generate methanol which is easy to separate, and the catalytic refining process achieves multi-effect refining of aldehyde removal, deacidification and dehydration on a polyoxymethylene dimethyl ether condensation product.

The invention discloses a double-runner sand core of a heat-resisting steel spiral case as well as a producing method and a locating method of the sand core. The sand core is prepared from the following raw materials in percentage by weight: 78 to 85 percent of ceramsite sand, 9 to 15 percent of soldering iron sand, 2 to 3 percent of polyethylene resin, 1.0 to 1.5 percent of calcium stearate and 1.8 to 3.0 percent of a curing agent. The double-runner sand core disclosed by the invention has no batch seam burrs and has a smooth and compact surface; the problem that the sand core of the double-runner heat-resisting steel spiral case is difficult to form because of a thin wall of a runner is solved.

The invention discloses a roll bending forming die and a forming method of a large-curvature semi-arc-shaped pipe orifice reinforcing part. The forming die comprises a forming cam, a forming concave wheel and a driven concave wheel; the forming cam, the forming concave wheel and the driven concave wheel are respectively mounted on three different rollers of an asymmetric three-axis roller bendingmachine; during forming, blank positioning is carried out firstly, then the relative position relation between the forming cam, the forming concave wheel and the driven concave wheel is set, then thethree-axis roll bending device is used for forming, and finally, the pipe orifice reinforcing part passes between the three synchronous rotating rollers and continuously generates axial and longitudinal plastic bending deformation, so that the required cross-sectional shape and the radian shape are obtained.

The invention belongs to the field of leather solid waste recovery, and particularly relates to leather leftover material secondary compression utilization equipment which comprises a machine body. A feeding pipe is fixedly connected to the upper surface of the machine body, and a water inlet pipe is arranged at the bottom end of the feeding pipe. According to the leather leftover material secondary compression utilization equipment, through the arrangement of a cleaning mechanism, when crushed materials fall to the upper surface of a partition plate, a water inlet pipe injects water, a transmission shaft drives a rolling shaft to rotate, and a rotating disc does circular motion with the transmission shaft as the circle center along the upper surface of the partition plate; under the driving of the rotating disc, an arc-shaped plate continuously stirs the materials, and a rotating plate is matched, so that the outer surfaces of the materials and the outer surfaces of brush strips make contact and friction faster and more sufficiently, and the cleaning speed and the cleaning effect are improved; and one part of water flow with impurities flows out of a blow-off pipe, and the other part of water flow with the cleaned materials falls down from a screen, so that the problem that when traditional leather is recycled, due to the fact that the number of impurities in the materials is large, the utilization rate is low is solved.

The invention discloses a composite material for separating CH4 gas, and belongs to the technical field of adsorption separation. The composite material reserves the gas adsorption separation capability of metal organic framework materials (MOFs) in performance. After the MOFs material is compounded with the porous polymer material polyacrylate microspheres (PGT) and polyacrylamide microspheres (PAM), the problems that the MOFs material is difficult to form and the separation efficiency is reduced after the MOFs material is formed are solved. Meanwhile, the material has better hydrothermal stability and wear resistance, is an efficient composite material for gas separation, and has important industrial value in the aspects of enrichment and utilization of methane in low-concentration coalbed methane and removal of nitrogen and carbon dioxide from natural gas.

The invention discloses a wool felt doll and a making method thereof. The wool felt doll comprises a doll body, wool and decorating parts, wherein the doll body is made of polyurethane sponge. The surface of the doll body is covered with the wool, and the wool penetrates into the doll body through a needle and is fixed. The decorating parts are installed on the doll body. The wool felt doll is high in density, easy to machine and shape, and high in extrusion resisting capability, and has the advantages of being soft, distinct in detail, vivid and the like after being shaped. Obviously, the problem that an existing wool felt doll is difficult to shape is solved, the characteristic that the wool felt doll is soft is also kept, and meanwhile the problem that wool felt dolls are difficult to produce on a large scale is solved. More importantly, the polyurethane sponge is environmentally friendly and nontoxic, namely the wool felt doll made of the polyurethane sponge is suitable for people at all ages, and there is no need to worry that the wool felt doll causes harm to the human body. Besides, the wool felt doll can be manually made in a DIY mode, and requirements of more users are met.