55results about How to "Improve release quality" patented technology

The invention provides a concrete releasing agent for an aluminum alloy template of a building. The releasing agent comprises the following components in parts by weight: 8-15 parts of grease, 1-3 parts of fatty acid monoglyceride or fatty acid diglyceride, 2-5 parts of fatty acid, 1-3 parts of resin, 0.05-0.5 parts of basic metal compound, 3-5 parts of inorganic filler and 1-5 parts of solvent. The releasing agent coats the aluminum alloy template of the building and is used in the concrete pouring technology, the concrete releasing quality is good without obvious blister, and the releasing agent residue surface matter is easily removed and the releasing agent is suitable for use for single or multiple times, and the service life of the template is prolonged.

The invention discloses a demolding method in a nanoimprint technology process. The demolding method comprises the following steps: firstly, coating a substrate with a nanoimprint adhesive material to form an imprint adhesive layer; secondly, pressing a template into the imprint adhesive layer; thirdly, transmitting an ultrasonic wave to the template by an ultrasonic transmitting device at the upper part of the template after the imprint adhesive layer is cured and fixed, so as to assist separation of the template and the imprint adhesive layer; and finally removing the template and finishing the demolding process. Compared with the prior art, the problems that the molded nanoimprint structure is serious in deformation, overlarge in tear force and demolding force and the like due to cohesion force of the template and the adhesive layer in the demolding process of a nanoimprint technology are solved; imprinted pattern transferring and photoetching are completely consistent; the demolding force is effectively reduced; the demolding success rate is greatly improved; and large-scale industrial production is realized.

The invention discloses multi-major-element high-entropy alloy and a preparation method thereof and belongs to the technical field of alloy materials. Through the excellent comprehensive performance of the high-entropy alloy, the problem that existing metal is poor in strength, hardness, compactness, corrosion resistance and the like is mainly solved. Elements such as V, Zr, Hf, Ti, Cr, Zr and Mn are configured according to the equal molar ratio or the approximate equal molar ratio, and VZrHfTiCrZrMn alloy is obtained through vacuum sintering. The alloy has the characteristics of being high in strength and hardness and excellent in comprehensive performance, and the alloy can be used for special alloy, die manufacturing, special tools and the like. According to the multi-major-element high-entropy alloy and the preparation method thereof, the thought is clear, operation is easy, the practicability is high, and the obtained alloy product has certain market prospects.

The invention discloses a shaft sleeve material and a preparation method. A shaft sleeve is manufactured through the following process steps of raw material preparation, pretreatment, powder mixing, preliminary molding, high-temperature sinter molding, heat treatment and the like. The shaft sleeve material is prepared from, by mass, 1-2% of silicon dioxide, 0.5-1.2% of manganese dioxide, 0.5-1.6% of molybdenum disulfide, 0.5-2% of lanthanum oxide, 0.2-0.9% of nickel oxide, 0.5-1.2% of cobalt carbide, 1-2% of silicon carbide, 0.3-1% of graphite, 0.2-0.8% of wax micro-powder, 0.2-0.8% of chromium, 1.5-3% of tin, 2-10% of copper, 0.1-0.5% of phosphorus, 0.1-0.5% of zirconium and the balance iron and inevitable impurities. The produced shaft sleeve material has high wear resistance and hardness as well as high strength and impact resistance.

The invention discloses a BGA (Ball Grid Array) ball planting device and method, which belong to the technical field of BGA ball planting. The device comprises a printer and a laminator. The printer is provided with a printing fixture which includes a supporting base. The supporting base is provided with a supporting carrier which is connected with the supporting base. The supporting carrier is provided with multiple grooves, and the cross sections of the grooves in the vertical direction are in an inverted convex shape. The laminator comprises a ball planting fixture I which includes a suction nozzle II. The cross section of the suction nozzle II in the vertical direction is convex. The suction nozzle II is of a hollow structure inside, and is provided with multiple small holes in the lower surface thereof. The small holes are communicated with the hollow structure, and are evenly distributed on the lower surface of the suction nozzle. The method comprises the following steps: (1) tinremoving; (2) cleaning; (3) printing; (4) ball planting; and (5) reflow soldering. BGA components can be quickly recovered and utilized, the scrap rate of parts is reduced, and the effect of cost reducing is achieved.

The invention discloses a forming mold for an auxiliary instrument middle mounting support. The forming mold comprises a fixed mold seat plate, a fixed mold plate, an upper mold core, a movable mold seat plate, a movable mold plate, a lower mold core, a driving device, a forming column, a vertical male mold insert, a hook face male mold insert, a side wall male mold insert, a forming male mold insert and a forming female mold insert. The fixed mold plate is provided with a guiding column, and the movable mold plate is slidably provided with a sliding block. The guiding column is arranged in the sliding block in a penetrating mode, the tail end of the guiding column is inserted in the movable mold plate and slidably connected with the movable mold plate, and an orientation assembly is arranged between the sliding block and the movable mold plate. A first punching male mold, a second punching male mold, a third punching male mold and a fourth punching male mold are connected to the sliding block. The forming column, the vertical male mold insert, the hook face male mold insert, the side wall male mold insert, the forming male mold insert, the forming female mold insert, the upper mold core and the lower mold core form the cavity wall of a model cavity. The auxiliary instrument middle mounting support is formed through integrated injection molding, the workpiece surface evenness of the auxiliary instrument middle mounting support is improved, and thus the forming quality of the auxiliary instrument middle mounting support of the middle of an auxiliary instrument is improved.

The invention relates to the processing field of foam board molding machines, in particular to a stripping method and device for a foam board continuous molding machine. The stripping method for the foam board continuous molding machine is characterized in that the rotating speed of a driving roller is the same as that of the upper and the lower bodies of the foam board continuous molding machine; the driving roller drives a conveyor belt to rotate at a constant speed; the conveyor belt has the same speed with the track shoes of the upper and the lower bodies and is adhered with the track shoes; and a self-stripping layer, of which the interface material is a polytetrafluoro or polyethene coating, is adhered on the conveyor belt to realize an isolation and anti-bonding function and facilitate the solidification and the molding of the boards. The stripping method and device for the foam board continuous molding machine have the advantages that the processing is easy, manual film removing is replaced with the self-stripping of the machine, and the self-stripping layer can be reutilized, so that the processing cost is reduced and the stripping quality is improved.

The invention relates to a shoe-making mold, and discloses a mold device easy to demold. The mold device has a simple structure and is quickly demolded, and yield and production efficiency of injection molding is effectively improved, and the mold device is suitable for mass production and use. a telescopic cavity is arranged on an upper die core positioned above an upper mold cavity of the mold device; a brake rod is arranged on a shoe tree and can move up and down and penetrate into the telescopic cavity; a brake plate is fixedly connected to the end of the brake rod in the telescopic cavity; a telescopic base is arranged on the upper mold base, a telescopic rod capable of moving up and down penetrates through the telescopic base, and one end of the telescopic rod penetrates into the telescopic cavity and is connected with the brake plate; a pressurizing device is also arranged on the upper mold base, and a pressurizing end of the pressurizing device communicates with the telescopiccavity; and an exhaust valve is also arranged on the telescopic cavity.

The invention relates to the technical field of injection molds, and discloses an injection mold. The injection mold comprises a hydraulic device, a hydraulic rod movable mold and a fixed mold, wherein the hydraulic device is in transmission connection with the movable mold through a hydraulic rod, a mold cavity is formed between the movable mold and the fixed mold, a cooling water channel is formed in the mold cavity, a pouring opening is formed in the middle of the fixed mold, the pouring opening communicates with the mold cavity and communicates with an injection molding machine, the middleof the movable mold is in a groove shape, the groove communicates with the mold cavity, a sealing piece is driven to move downwards under the action of a hollow electromagnet, and therefore gradually-changed negative pressure is formed between the sealing piece and the movable mold firstly. The gradually-changed negative pressure acts on the injection molding piece, slow separation between the outer wall of the injection molding piece and the inner wall of the fixed mold can be guaranteed, bonding resistance between the injection molding piece and the fixed mold disappears, separation from the fixed mold is achieved while the movable mold moves downwards, in the demolding process, the surface of the injection molding piece is not bonded with the fixed mold during demolding, resistance isrelatively small, and the surface quality of the injection molding piece during demolding is improved.

The invention discloses a method for preparing a release intermediate of fluorine-containing hydroxyphenyl organic acid alkenyl ester, which is characterized in that: hydroxyphenyl organic acid and decarboxylated hexafluoropropylene oxide dimer undergo nucleophilic substitution reaction, The obtained sodium hydroxyphenyl organic acid substituted by hexafluoropropylene oxide dimer is acidified with acid solution to obtain the hydroxyphenyl organic acid substituted by decarboxylated hexafluoropropylene oxide dimer. And under the polymerization inhibitor, the hydroxyphenyl organic acid substituted by the decarboxylated hexafluoropropylene oxide dimer is finally esterified with propenyl alcohol to obtain the fluorine-containing hydroxyphenyl organic acid alkenyl ester release intermediate; the Fluorine-based release intermediates can be further reacted with acrylic compounds to synthesize high-efficiency fluorine-containing release agents, which can improve release efficiency and product processing quality, meet the high-end needs of the market, and have good economic and social benefits.