76results about How to "Faster molding time" patented technology

The invention relates to a production technology of viscose extinction monofilament. The production technology takes cellulosic fiber pulp as a raw material and obtains viscose extinction monofilament through preparation of a spinning solution, injection before spinning, spinning and aftertreatment, and specifically comprises the following steps of: (A) preparing the spinning solution from the cellulosic fiber pulp through steeping, ageing, yellowing, dissolving, defoaming and filtering; (B) adding a titanium dioxide solution into the spinning solution so that the weight ratio of titanium dioxide to alpha cellulose content in the spinning solution reaches (0.5-5.0):100; and uniformly mixing and feeding for spinning; (C) feeding the spinning solution into a spinning machine, and enabling the spinning solution to pass through a spinneret orifice of a single-hole spray head under pressure, and solidifying and molding the formed viscose trickle to form raw silk strips, wherein the spray head is stretched by +60% to +80%, and an inlet channel of the spinneret orifice is in a parabola shape; and (D) performing aftertreatment: performing desulfurization, bleaching, oiling and drying on the raw silk strips to obtain the viscose flat monofilament. According to the production technology provided by the invention, the filament number of the prepared viscose monofilament is 50-6,000D, the strength is high over 75CN, and the requirements on dyeing, weaving and finished product taking are met; and moreover, the viscose extinction monofilament has gentle color and an extinction effect.

The invention discloses an anhydrous resin bonding agent for a fireproof material and a preparation method thereof. The anhydrous resin bonding agent is characterized in that after phenol and aldehyde are synthetized into phenol aldehyde linear resin under the action of an acid composite catalyst, a solvent without hydroxide radicals is added for dissolving; and isocyanate is used for modifying to prepare the anhydrous resin bonding agent. The anhydrous resin bonding agent for the fireproof material contain no water, has moderate viscosity, generate no water in the process of solidifying and is particularly suitable for manufacturing alkaline fireproof material products containing calcium, such as magnesia-calcium bricks, dolomite bricks, and the like. The alkaline fireproof material products have long storage time, no easy aquation, no generation of volumetric expansion and high product strength and effectively improve the quality of the fireproof material.

The invention discloses a method for preparing a carbon fiber reinforced thermoplastic composite material, which comprises the following steps: 1)alternatively paving carbon fiber and thermoplastic resin in a die, wherein a bottom layer and a top layer of the die are thermoplastic resin, closing the die and applying pressure; 2)accessing power supply to a carbon fiber layer, rapidly heating under current effect, when the temperature is higher than the melting point of thermoplastic resin, fusing thermoplastic resin, dipping carbon fiber under pressure; and 3)breaking power, cooling the die, and then opening the die to obtain the carbon fiber reinforced thermoplastic composite material. The method takes carbon fiber as a heat-generating body, the electrothermal conversion efficiency can reach as high as more than 90%, and the energy saving effect is obvious; simultaneously, carbon fiber is capable of melting thermoplastic resin and completing dipping, and has the advantages of short moulding time and good dipping effect, formation of good cross section of thermoplastic resin and fiber can be realized, composite material performance is increased, and processing of product with large thickness can be realized in short time.

The invention discloses a biomass granulation system and a biomass granulation device. Biomass is delivered to a crusher to be crushed, the crushed biomass is pumped out through a blower and fed into a cyclone dust collector to perform gas-solid separation, and the separated material is made into granules through a biomass granulator; pulverized coal or diatomite can be added into the biomass delivered to the crusher; a temperature sensor is arranged in a molding cavity, the biomass granulator is driven by a variable frequency motor, and the rotating speed of the variable frequency motor is automatically adjusted through a monitored temperature signal; and a straight hole or a conical-straight composite through hole is formed on a flat die of the granulator. The biomass and the additive can be mixed while crushing, so the mixing uniformity of different materials is improved; the provided temperature sensor adjusts the rotating speed of the variable frequency motor and stabilizes the water content of the biomass molding granules; and the straight hole or the conical-straight composite through hole is formed on the flat die of the granulator, the molding time of the biomass granules is prolonged, the molding intensity is increased, and the slag dropping defect of the current granulator is overcome.

The invention relates to the technical field of 3D printing manufacturing, and provides a 3D printing method of a metal part of a hollowed structure. The 3D printing method comprises the following steps that firstly, a printing orientation is selected, and refers to the placement orientation of the metal part of the hollowed structure on a base platform; secondly, a printing position of a supporting part is selected, and the supporting part takes a stress concentrated part on the metal part of the hollowed structure as a supporting reference position; thirdly, the printing density of the supporting part is selected, and the supporting part take weight of the supported upper-layer the metal part of the hollowed structure as a benchmark; and finally, after early-stage preparation work is completed, printing forming is conducted in the following printing forming process, metal powder is laid layer by layer from bottom to top in the direction parallel to the base platform, laser sinteringforming is carried out after each layer of metal powder is laid, another layer of metal powder is laid after sintering is completed, the steps are carried out repeatedly until the last layer of metalpowder of the metal part of the hollowed structure is sintered, and then capping is carried out.

A recessed portion, through which a covering plastic that has been melted and that is used for covering a core lens is introduced in a bifurcating manner, is formed in the core lens, and the covering plastic is introduced simultaneously onto the front and back surfaces of the core lens through the recessed portion.

The invention discloses a forming method of 3D curved glass, a forming system and the 3D curved glass. The forming method of the 3D curved glass comprises the following steps: a second manipulator (2)performs die assembling on the basis of position information scanned by a scanning unit (5) to form forming dies (6) for loading materials; the multiple forming dies (6) are horizontally conveyed into a die carrying cavity (8) in sequence; after being vacuumized, the die carrying cavity (8) is filled with nitrogen to enable gas pressure in the die carrying cavity (8) to be equal to that of a furnace body (9); the forming dies (6) pass through a first group of preheating regions (10) for heating glass from a temperature to a glass transition temperature and a second group of preheating regions(11) for heating the glass from the glass transition temperature to a preheating temperature in sequence through a conveying mechanism; after being formed, annealed and cooled, the forming dies (6) are conveyed to a position near to the die carrying die (8) through a conveying guide rail (7) for material reloading; the multiple forming dies (6) are repeatedly subjected to the processes to realizeautomatic forming in the whole procedure.

The invention belongs to the technical field of mining rock mass mechanics engineering, and specifically relates to a device and a method of simulating iron ore open pit-into-underground mining induced strata movement. According to the device, a 3D physical model taking the actual joint fissure condition of a rock mass into consideration is built by use of a most similar material proportioning plan, so as to reproduce the whole process of strata movement and destruction induced by mining and the laws of deformation and destruction and to provide reasonable and effective suggestions for the prevention and control of geological disasters in a mine environment.

The invention relates to a novel semi-continuous high-speed spinning machine which comprises a rack, a glue supply device, a filament strip forming device, a spinning device and a winding device. The spinning device comprises a spinning roller which is transversely arranged relative to the operating surface of a spinning face, and the two ends of the spinning roller are fixed on the rack. The novel semi-continuous high-speed spinning machine improves spinning speed, ensures that filament strips are sufficiently reacted, and then achieves the purposes of ensuring the quality of the filament strips, improving production efficiency and reducing spinning cost.

The invention relates to a transmission device of a press. The transmission device comprises a gear wheel, a connecting rod I, a rocker, a crankshaft, a key, a connecting rod II, upper toggle rods, lower toggle rods, ball screws and a slider body, wherein the gear wheel is connected with the connecting rod I and the rocker through hinge pins; the rocker is fixedly connected with the crankshaft through the key; the crankshaft is fixedly connected with the connecting rod II; the upper toggle rods are fixedly connected onto a press body and fixedly connected with the connecting rod II; the lower toggle rods are fixedly connected with the ball screws; the ball screws are fixedly connected onto the slider body. A slider can stay at about 50 degrees at a lower dead point through a unique operation curve of a multi-point toggle rod mechanism, the metal molding time is increased to the greatest extent, and plastic deformation of metal is better facilitated.

The invention discloses a sheet metal cabinet forming device, and relates to the technical field of packing boxes. The device comprises a box body, wherein a lifting adjusting device is fixedly connected to the middle position of the bottom of an inner cavity of the box body, the side, away from the bottom of the inner cavity of the box body, of the lifting adjusting device is fixedly connected with a forming bottom plate, supporting transverse plates fixedly connected to the middles of the inner walls of the two sides of the box body, the position, located above the forming bottom plate, at the tops of the supporting transverse plates is fixedly connected with a forming lower die, the position, located on the right side of the forming lower die, at the tops of the supporting transverse plates is fixedly connected with a conveying device, the position, located above the forming lower die, at the top of the inner cavity of the box body is fixedly connected with a pressure device, the bottom of the pressure device is fixedly connected with a forming upper die, and the inner surface of the forming upper die is provided with a heater. According to the device, by heating and prolongingthe forming time, the packaging boxes are bonded more closely with one another, the phenomena of degumming and the like are avoided, and the product quality is guaranteed.

The invention relates to the technical field of die processing and discloses a cooling die for a fuse box cover body. The cooling die comprises a rack, an upper die and a lower die; the upper die is aconcave die; the lower die is a convex die; a formation cavity is formed between the upper die and the lower die when the upper die is locked with the lower die; the upper die is provided with an injection molding hole which is communicated with the formation cavity and is internally provided with a cooling channel; the lower die is internally provided with a water storage channel and an air cavity; the water storage channel is internally provided with a pushing plate; venturi pipes are arranged at the two ends of the water storage channel respectively and are communicated with the water storage channel; an air pipe which is communicated with each venturi pipe is arranged at a throat pipe of each venturi pipe; the air cavity is internally provided with a sliding plate which is in verticalsliding connection with the lower die; the air cavity below the sliding plate is communicated with the water storage channel below the pushing plate, and an electromagnetic valve is arranged at the communication part; the sliding plate is provided with a connection rod; one end of the connection rod is arranged in the cooling channel; the air cavity below the sliding plate is provided with an airinlet one-way valve; and a bulge of the upper die is provided with a heat conduction sheet which extends into the air cavity. The cooling die is simple in structure and can rapidly perform cooling ona product in the die.

The invention discloses a method for modeling by using a plastic mold ship bracket device. The method can be used for carrying out shaping and demoulding on the bottom of the ship. The device comprisea plastic mold vessel bracket and a mixed material layer which is used for shaping the epoxy resin mixture, a ship bottom die is used for carrying out die pressing on the epoxy resin mixture to forma new ship bracket, the integrity of a hull can be observed from the ship bracket, a good inspection effect on building ship bottom is acquired. The bottom contour and the line of the model to be modeled are adjusted according to different requirements, and then curing and demolding are carried out after the plastic mold is molded; secondary curing, mechanical manufacturing and inspection are conducted after demoulding. According to the method for modeling by using a plastic mold ship bracket device and plastic mold ship bracket device, modeling adjustment is carried out on the ship bottom according to different shapes, an air drying device can accelerate the forming time of the mold, and the cleaning device can automatically clean the equipment; the organic silicon modified epoxy resin can be used for improving the heat resistance, and the method and the device have the characteristics of being diversified in shaping effect, simple and novel in operation and the like.

The invention provides a novel casting device for a cylinder head. The novel casting device comprises a base, a mold cavity, a water-cooling switch and an air-cooling switch. The mold cavity is movably connected above the base. The water-cooling switch and the air-cooling switch are fixedly connected to the front end of the base. Clamping grooves are formed in the inner walls of the base. Connecting water pipes are arranged at the upper ends and the lower ends of the clamping grooves, and the connecting water pipes penetrate through the side surface of the base. According to the novel castingdevice, water in a water tank is pumped into the connecting water pipes by water pumps, the water of the connecting water pipes flows into conveying water pipes and into circulating water pipes, and the circulating water pipes are in contact with the inside of the mold cavity, so that the heat energy in the mold cavity can be absorbed, the mold cavity is rapidly cooled, and then the water flows tothe water tank through the circulating water pipes, the conveying water pipes and the connecting water pipes; and by cooling the inside of the mold cavity, the forming time in the mold cavity is shortened, the working efficiency is improved, and the novel casting device is suitable for the production and use of the novel casting device for the cylinder head and has good development prospect.

The invention discloses a high-fluidity high-temperature nylon material and a preparation method. Because a stabilizer is added in the material, the high temperature resistance effect of nylon is increased, and a lubricant is used to make the nylon have higher fluidity and mold release performance and easy in molding by processing, in addition, due to the addition of a nucleating agent, the flow performance of products is increased, the molding time of the products is shortened and the tensile, impact and other properties of the products are improved. Glass fiber is matched with grafted POE, thus the toughness of the products is greatly improved, so that the products can be used in a shock-resistant environment. Finally through the stabilizer, nucleating agent, lubricant, glass fiber and grafted POE matching with each other, the fluidity of the products is improved, and meanwhile the high temperature and impact resistance of the products are greatly improved, the molding time of the products is significantly shortened, and the production cost of the products is effectively reduced.

The invention relates to a steaming-free concrete prefabricated assembly. The steaming-free concrete prefabricated assembly is characterized in that an inorganic-organic composite early strength agentand a nucleus-type early strength agent are simultaneously added to a concrete prefabricated assembly raw material according to a certain proportion to improve the early strength of the concrete prefabricated assembly, so that a steaming process can be avoided, energy consumption is reduced, energy is saved, the internal compactness of the concrete is improved, the flatness of the concrete surface is increased, crack formation is avoided, the later strength of the concrete is maintained, and the overall strength of the concrete is improved.

An automatic carton bonding device structurally comprises a rotary table, a baffle, a belt, a brush, a bonding table, a rocker arm, a solid block and belt pulleys. The baffle is fixed above the rotary table. A gap is formed between the baffle and the upper surface of the rotary table. The belt is installed on the belt pulleys. The brush is installed above the belt. The bonding table is arranged at one end of the belt. The solid block is arranged on the rocker arm above the bonding table. The rocker arm is also arranged at one end of the belt. The automatic carton bonding device is simple in structure, transmission is stable and free of noise, the buffering function and the vibration absorption function can be achieved, thin and vulnerable parts and components can be protected against damage under an overload circumstance, and therefore the function of safety protection is achieved; the whole process is automatically conducted, so that working time is saved, and working efficiency is improved.

The invention discloses a forging bucket tooth casting, forging and quenching integrated production process. The forging bucket tooth casting, forging and quenching integrated production process comprises a casting step, a water toughening step, a material adding step, a forging step, a trimming step and a quenching step. After a trimmed casting is washed clean, low-temperature tempering and quenching are conducted, and therefore a bucket tooth is obtained. According to the forging bucket tooth casting, forging and quenching integrated production process, casting and forging are combined, thenumber of air holes of the bucket tooth is reduced, the toughness, impact resistance, abrasion resistance and other mechanical properties of the bucket tooth are improved, and meanwhile the productioncost can be saved.