113results about How to "Fast demoulding" patented technology

The invention discloses a hypoeutectic aluminum-silicon alloy with excellent thermal conductivity. The alloy comprises the following chemical components: 5-9 wt% of Si, smaller than 0.5 wt% of Mg, smaller than 0.5 wt% of Cu, smaller than 0.7 wt% of Fe, smaller than 0.3 wt% of Mn, inevitable impurity elements and the balance of Al, a single inevitable impurity element is not less than 0.05 wt%, and the total amount of the inevitable impurity elements is lower than 0.25 wt%. The hypoeutectic aluminum-silicon alloy with thermal conductivity of 170-200 W/(m.K) can be obtained in a preparation process by such technical means as controlling the chemical components of the alloy and casting, and thermal treatment and the like. Good castability and mechanical properties of the aluminum-silicon alloy are guaranteed, and excellent thermal conductivity of the aluminum-silicon alloy is guaranteed at the same time.

The invention relates to a reinforced concrete shear wall with a positioning prefabricated member inside and a construction method of the reinforced concrete shear wall. The construction method includes: manufacturing the prefabricated member; arranging the prefabricated member on a floor slab structure; making positioning ladder rebars; binding rebars; mounting the prefabricated member; mounting steel formworks; setting up a steel formwork inclined strut. During constructing the reinforced concrete shear wall, vertical ladder rebars and horizontal ladder rebars are adopted as a positioning supporting frame for rebar binding, and the positioning prefabricated member is clamped in horizontally-vertically-distributed rebars, so that thickness of a protection layer is guaranteed and connection of rebar nets is enhanced; the assembly steel formworks are arranged on two sides of the rebar nets, oppositely-puling threaded rods penetrate connecting steel pipes to be fastened on embedded members of the steel formwork inclined strut and the floor slab structure through screws, and concrete is poured to form a shear wall structure. By using the construction method, construction site order and construction efficiency are improved, related measures guarantee construction quality of the shear wall, rebar positioning accuracy and thickness accuracy of the protection layer are improved remarkably, and the construction method has good technical and economic benefit.

The invention provides a high-thermal-conductivity die-casting aluminum alloy. The high-thermal-conductivity die-casting aluminum alloy comprises, by mass percentage, 0.05%-1.0% of silicon, 0.3%-1. 3% of iron, 0.2%-2.0% of nickel, 0.1%-1.2% of magnesium, 0.001%-0.15% of strontium and the balance aluminum and inevitable impurities, wherein the mass percentage of the impurities is smaller than 0.2%. The invention further provides a preparing method of the high-thermal-conductivity die-casting aluminum alloy. The preparing method comprises the steps that at different heating temperatures, the aluminum and magnesium, an aluminum silicon intermediate alloy, a ferro-aluminium intermediate alloy, a nickel-aluminum intermediate alloy and an aluminum strontium intermediate alloy are sequentially fused to obtain aluminum, silicon, iron, nickel, magnesium and strontium fusion; then refined treatment and slag removal treatment are carried out to obtain an aluminum alloy solution; and the temperature of the aluminum alloy solution is adjusted to be 680 DEG C to 720 DEG C, and then casting can be carried out. The high-thermal-conductivity die-casting aluminum alloy has the excellent casting performance and has the higher heat conductivity coefficient.

The invention discloses an anti-blocking low smoke zero halogen flame-retardant cable material for an optical cable. The anti-blocking low smoke zero halogen flame-retardant cable material comprises the following components in parts by weight: 65-75 parts of ethylene-vinyl acetate copolymer, 20-30 parts of high pressure metallocene polyethylene, 10-20 parts of modified polyethylene, 70-110 parts of aluminum hydroxide, 20-30 parts of magnesium hydroxide, 2-5 parts of silicone master batch, 1-3 parts of polyethylene wax, 30-50 parts of flowable agent, 0.15-0.45 part of antioxidant, and 2-5 parts of black master batch, wherein the content of VA in the ethylene-vinyl acetate copolymer is 20-28%, the melt index of 2.16Kg of high pressure metallocene polyethylene at 190DEG C is less than or equal to 3g/10min, the density is less than 0.92g/cm<3>. By adopting the anti-blocking low smoke zero halogen flame-retardant cable material, the outer diameter of the optical cable is uniform, so that the shrinkage integrity of the core of the optical cable is guaranteed, the signal transmitted in the optical cable is not attenuated sharply; and in addition, the tensile strength of the cable is greater than or equal to 13MPa, the elongation at break is greater than or equal to 250%, the oxygen index is greater than or equal to 34%, and the cable has excellent mechanical property.

The invention discloses a high-thermal-conductivity and high-strength aluminum alloy material and a preparation method thereof. The aluminum alloy material comprises the following components in percentage by weight: 1.0 to 2.0 percent of silicon, 0.3 to 1.2 percent of iron, 0.1 to 0.9 percent of copper, 0.1 to 0.9 percent of magnesium, less than or equal to 1.5 percent of nickel and the balance ofaluminum. The preparation method comprises the following steps: mixing a pure metal material or an intermediate alloy material and the required elements according to the proportion, heating the mixedaluminum alloy material to 700 to 800 DEG C and performing heating and melting treatment; introducing nitrogen gas into a container with the aluminum alloy material, adding a refining agent and refining; scraping out scum after refining, performing standing treatment on the aluminum alloy material and removing included slag; and controlling the temperature range of the aluminum alloy material to660 to 700 DEG C and casting a forming part. Al-Si-Fe alloy serves as basis and Cu and Mg strengthening elements and other alloy elements are added, so that high thermal conductivity and excellent mechanical property requirement are achieved.

The invention discloses a trapezoid manure leaking floor and a manufacturing mold assembly thereof, and relates to a pig house. The trapezoid manure leaking floor and the manufacturing mold assembly are characterized in that a plurality of manure leaking seams are formed in the trapezoid manure leaking floor at equal intervals, the cross section of each manure leaking seam is in a trapezoid shape with a small upper opening and a big lower opening, and a reinforcing steel bar frame is arranged in the portion, between every two adjacent manure leaking seams, of the manure leaking floor and buried vertically so that the strength of the manure leaking floor can be improved. The manufacturing mold assembly comprises a manure leaking floor mold and a demolding tool. The trapezoid manure leaking floor is manufactured through the manure leaking floor mold, and the demolding procedure is rapidly completed through the demolding tool. By means of the trapezoid manure leaking floor and the manufacturing mold assembly, concrete is directly poured into the mold, the manure leaking floor with the trapezoid seams is manufactured through the mold with trapezoid protrusions, the demolding tool is used in cooperation with a forklift, and demolding work can be rapidly conducted.

The invention discloses a box container plastic uptake mould capable of conveniently de-moulding. The box container plastic uptake mould capable of conveniently de-moulding comprises a power frame anda mould arranged on the top of the power frame, wherein the middle part inside the power frame is provided with a storage cavity, and the center position of the power frame is provided with an oil cylinder; a movable sealing plug is arranged inside the oil cylinder; the left side of the oil cylinder horizontally communicates with an oil passing tube; a movable load-bearing column is connected above the sealing plug; the bottom end of the mould is welded with a stainless steel cushion plate which is connected to the load-bearing column; the middle of the cushion plate on the top of the power frame is provided with a slot hole which corresponds to the mould; the cushion plate and the mould on the top of the cushion plate can move up and down; and the mould comprises a top plate and side plates formed by side corners of the top plate. The mould is controlled to move, so that an external workpiece is in contact and extrusion with the power frame on the bottom, and therefore, de-moulding is promoted; and a column hole can be additionally formed in the top plate of the mould for exhausting gas outwards; and cooling structures on inner walls of the side plates of the mould can quicken cooling and assist de-moulding, so that de-moulding efficiency is high.

The invention provides a continuous casting machine, and belongs to metallurgical equipment. The continuous casting machine comprises a machine head frame, a machine body frame, a machine tail frame, a die, machine head transmission chain wheels, a machine head transmission main shaft, a machine tail transmission chain wheel, a machine tail transmission shaft, a motor, a speed reducer, a transmission chain, cooling devices, a die releasing agent spraying device, a die releasing device and a casting port, wherein the machine head frame, the machine body frame and the machine tail frame are all of rectangular steel frame structures and are sequentially integrally fixedly connected; bearing blocks which are assembled to the machine head transmission main shaft are mounted at two sides of the machine head frame; the machine head transmission chain wheels are mounted at two ends of the machine head transmission main shaft. The continuous casting machine is simple in structure; all components can be independently dismounted and replaced, so that the convenience of maintenance is ensued, a plurality of problems caused by manual breaking can be completely solved, and as a result, huge economic benefits can be brought to metallurgical enterprises.

The invention discloses a pier stud template for road and bridge construction. The template comprises two half templates; T-shaped clamping grooves are formed in the ends, close to each other, of thetwo half templates. An I-shaped plate is inserted between the two adjacent clamping grooves; a top plate is fixed to the ends, away from the inner sides of the half templates, of the I-shaped plate, the end of the top plate extends to the outer sides of the outer walls of the half templates, two arc-shaped plates attached to the outer walls of the half templates are fixed to the outer side of eachhalf template, an inserting opening is formed in each arc-shaped plate in a communicating mode, and a U-shaped rod is arranged on the outer side of the joint of the two half templates. According to the invention, the I-shaped plate is inserted to connect and fix the half templates, so that a problem that loosening is likely to happen when an outer hoop is adopted for fixing traditionally is solved; separation of concrete from the joint of the baffle and the half template is achieved through continuous contact and impact between the impact ball and the half template and upward movement of thetop plate, so that rapid demolding is achieved, and damage to a wood plate or a pier stud is avoided.

The invention provides a tunnel ditch cable trough construction trolley which comprises a truss and a traveling system installed below the truss. The tunnel ditch cable trough construction trolley further comprises side wall die set devices, cable die set devices and ditch die set devices. Each side wall die set device comprises a side wall die set, a first oil cylinder and a second oil cylinder, wherein the two ends of the first oil cylinder are hinged to the side wall die set and the truss correspondingly, and the two ends of the second oil cylinder are hinged to the side wall die set and the truss correspondingly. Each cable die set device comprises a cable die set and a third oil cylinder, and the two ends of the third oil cylinder are hinged to the cable die set and the truss correspondingly. Each ditch die set device comprises a fourth oil cylinder, two oppositely arranged wedge-shaped die sets and an adjusting unit, wherein the adjusting unit comprises a bearing beam, an adjusting hand wheel and two oppositely arranged threaded rods, the two ends of the fourth oil cylinder are hinged to the truss and the bearing beam correspondingly, the adjusting hand wheel is arranged on the bearing beam, and each threaded rod is connected between the adjusting hand wheel and the corresponding wedge-shaped die set. The construction trolley has the advantages that the construction quality is high, and the demolding time is short.

The invention discloses a wire-drawing gathering-scattering type combined filler for sewage treatment, and belongs to the field of combined fillers. The wire-drawing gathering-scattering type combined filler for sewage treatment comprises a fixed rope, a semi-elastic movable rope and a plurality of uniformly distributed rhombic filler bodies, wherein the fixed rope and the semi-elastic movable rope sequentially penetrate through the rhombic filler bodies and are connected with the rhombic filler bodies, and the rhombic filler body comprises a pair of upper net plates and a pair of lower net plates. According to the invention, the shape change of the rhombic filler body is controlled, so that the loose state and the dense degree of the biofilm hanging silk are changed, the integrity of a biofilm is damaged, the internal pores of the biofilm are enlarged, the dense degree of the biofilm can be quantitatively and uniformly adjusted according to the actual situation, on the basis of not influencing the normal use of the biofilm, the internal porosity of the biofilm is improved, the adhesion capacity of the biofilm is reduced, and the separation of the aged biofilm is promoted so as to provide the combined filler which is easy to adjust, promotes demolding and has efficient degradation capacity for sewage treatment.

A jig for assembling main roller shafts of a fork carrier of a forklift is characterized in that a frame is rectangular and is made by splicing four side plates; two opposing side plates of the frame are provided with more than two first positioning mechanisms and more than two second positioning mechanisms, respectively; the first positioning mechanisms are disposed on the same horizontal plane, correspond to the second positioning mechanisms and are symmetrical to the second positioning mechanisms; the first positioning mechanisms and the second positioning mechanisms are identical in structure; each first positioning mechanism is composed of a bushing, a sleeve, a sliding rod, a second stopper, a slider and a first retainer ring, the inner surface of the first side plate is provided with an adjusting base which is parallel to the sleeve and which faces the middle of the frame, and the end of the adjusting base is provided with a first positioning pin; the bottom of the first side plate and the bottom of the second side plate are symmetrically provided with pin components; each pin component comprises a step base, a second positioning pin and a third positioning pin. The jig is simple in structure and convenient to use.

The invention discloses a synthetic resin workpiece demolding device and a demolding method thereof, belongs to the technical field of demolding devices, and aims to solve the problems that in the prior art, a synthetic resin workpiece is mostly poked through a clamp, so that the synthetic resin workpiece is separated from a mold disc and clamped out, and demolding of the synthetic resin workpiece is troublesome. The mold comprises a mold base, and a groove hole is formed in the surface of the mold base; a threaded rod is rotated, the threaded rod drives a third guide block to slide, the third guide block pushes an arc-shaped push plate through a push rod, the arc-shaped push plate pushes a synthetic resin workpiece on the surface of a lifting disc, the synthetic resin workpiece is pushed to the upper surface of a material conveying belt, a rotating shaft is driven to rotate, and the rotating shaft enables the material conveying belt to convey through a material conveying roller. And the material conveying belt conveys the synthetic resin workpiece, so that the conveying of the demolded synthetic resin workpiece is conveniently completed, and the phenomenon that the molded synthetic resin workpiece is scalded due to manual taking is effectively avoided.

The invention discloses a novel pulling-type internal mold for a prefabricated concrete board beam of an expressway. The novel pulling-type internal mold comprises four first rotation shafts. Upper supporting mold plates and lower supporting mold plates are rotatably connected to the first rotation shafts, and every two first rotation shafts are used as a set. The novel pulling-type internal moldis divided into three parts, during demolding, the middle part is removed first, a second rotation shaft is passively rotated, then idler wheels fall on slide rails, a lower mold plate is separated from bottom concrete according to the principle of lever prizing, after the middle part is removed, the huge space of the middle is released, conditions are created for rotation folding and removal of the mold plates of the two sides, and the novel pulling-type internal mold is suitable for large and small blocks and good in technology capability and provides convenience for processing manufacture and construction application. An internal-external line is designed as the overlapping axis of the two sides, that is to say, the axis of the large-diameter part and the axis of a port are designed atthe same axis, the problems of structural defects and inconvenient operation caused by different internal and external axes are solved, internal and external rotation of the two sides keeps uniform, folding is smoothly performed, and demolding is quickly performed.

The invention discloses a negative carbon steel slag baking-free brick as well as a preparation method and application thereof. The steel slag with the particle size smaller than 0.075 mm is subjected to ball milling to obtain steel slag superfine powder; the method comprises the following steps: carrying out carbonization treatment on steel slag with the particle size of 0.075-4.75 mm to obtain a carbonized product; the carbonized product, a cementing material, steel slag ultrafine powder and an auxiliary cementing material are mixed and stirred uniformly, a mixture is obtained, and the carbonized product accounts for 57 wt%-63 wt% in the mixture; the binding material accounts for 13 wt%-18 wt%; the superfine steel slag powder accounts for 15.5 wt%-20.0 wt%, and the auxiliary cementing material accounts for 6 wt%-8 wt%; the auxiliary cementing material comprises water, a binder and a water reducing agent; and carrying out compression molding on the mixture, and then carrying out maintenance treatment to obtain the negative carbon steel slag baking-free brick. The negative carbon steel slag baking-free brick disclosed by the invention is short in forming period and high in strength; the steel slag contains free calcium oxide, so that CO2 in the atmosphere can be absorbed, carbon reduction and carbon loading are achieved, and a certain positive influence on the environment is achieved.

The invention provides a forming mold with a positioning structure for wallboard production, and relates to the technical field of wallboards. The forming mold with the positioning structure for wallboard production comprises a base, a transverse frame is fixedly connected to the outer side of the top of the base, injection molding equipment is fixedly connected to the bottom of the transverse frame, an electric push rod is fixedly connected to the bottom of the injection molding equipment, and an upper mold body is fixedly connected to the bottom of the electric push rod. According to the forming mold with the positioning structure for wallboard production, a lower mold body is composed of two combination blocks, the two combination blocks are fixed through a threaded hole and a fixing bolt, and then the lower mold body is fixed into the base through multiple locking bolts and fixed to the top of a screen plate; and then the electric push rod, the upper mold body and a feeding pipe are used for injection molding. According to the forming mold, local replacement can be conducted, then an air pump is started, air in the base can be exhausted after injection molding is conducted, andtherefore harmful gas cannot be blown out.

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.