135results about How to "Increase pouring speed" patented technology

The invention discloses a continuous casting and rolling production line of wire rods and a production method of the production line. The continuous casting and rolling production line of the wire rods comprises a continuous casting machine, a parallel-flow device and a rolling mill unit. The method comprises the steps that a square casting blank or a circular casting blank is produced by means of the continuous casting machine firstly, the produced square casting blank or circular blank is cut through a cutting machine, parallel flowing is conducted through the parallel-flow device, the parallel flowed square casting blank bodies or circular casting blank bodies are conveyed to an inlet of the rolling mill unit through a conveyor roller way finally, and the rods are prepared by rolling through a rough mill, an intermediate mill and a finishing mill in sequence. According to the continuous casting and rolling production line of the wire rods and the production method of the production line, seamless connection of the continuous casting machine and rolling mills is achieved, the casting blank can be directly hot-delivered into the rolling mill unit to be rolled into the rods, secondary heating through a heating furnace is not needed, and the continuous casting and rolling production line of the wire rods and the production method of the production line have the advantages of being high in pouring speed, small in casting machine flow number, compact in production rhythm, high in efficiency, less in energy consumption and low in construction investment and operation maintenance cost.

The invention provides four-graded roller compacted concrete suitable for water power hydraulic engineering, the four-graded roller compacted concrete per cubic meter comprises the following components: 49kg-64kg of cement, 78kg-92kg of fly ash, 70kg-71kg of water, 630kg-700kg of sand, 1520kg-1610kg of gravel, 0.98kg-1.42kg of a high efficiency water reducing agent and 0.07kg-0.14kg of an air entraining agent, the mass ratio of super large stone (80mm-120mm): large stone (40mm-80mm): middle stone (20mm-40m m): small stone (5mm-20mm) is 20:30:30:20. The four-graded roller compacted concrete is low in cementitious material use amount and low in adiabatic temperature rise, has good working performance, mechanical performance and durability, and can simplify the temperature control measures, improve the construction progress, and reduce cost.

The invention relates to a high-mountain narrow-valley arch dam foundation segmented and staged grouting method, and belongs to a foundation treatment method of a rock surface of a high steep bank slope foundation of a high-mountain narrow-valley arch dam foundation. The high-mountain narrow-valley arch dam foundation segmented and staged grouting method comprises the following steps: carrying out consolidation grouting and drilling after acceptance of excavation of the arch dam foundation; carrying out first-stage consolidation on the inside of a consolidation grouting hole; drilling a residual contact segment by the distance of 1 m with a phi 75 mm drilling sleeve after first-stage consolidation grouting is finished; burying a grouting system; pouring dam body concrete after first-stage consolidation grouting is finished; after joint grouting of a dam body is finished or while joint grouting of the dam body is carried out, carrying out second-stage consolidation on a consolidation grouting contact segment of the dam foundation. Consolidation of a bed rock contact segment and contact grouting are combined together, meanwhile, effects of contact segment consolidation and contact grouting are achieved, the work amount of the contact grouting system is reduced, the construction period is shortened, a construction technology is simplified, foundation treatment purposes of a high steep bank slope of the dam foundation of simplicity and convenience in construction, reliable technology, economy and reasonableness of grouting treatment of the high steep bank slope are achieved, and the problems encountered in foundation treatment of a dam segment of a bank slope are solved.

The invention discloses a casting method of a steering knuckle of nodular cast iron. The casting method comprises a mold manufacturing step, a sand mold manufacturing step and a pouring molding step, wherein the steering knuckle is vertically arranged, a thick part of a steering knuckle casting is arranged at the upper part, a thin-walled part of the steering knuckle casting is arranged at the lower part; a pouring system of the steering knuckle casting is divided into a pouring cup, a cross pouring gate and a straight pouring gate, the cross pouring gate is connected to the lower part of the pouring cup, the straight pouring gate is connected to the lower part of the cross pouring gate, and a scum riser is arranged at the bottom end of the straight pouring gate; the side wall of the straight pouring gate is connected with a first inner pouring gate, a second inner pouring gate and a third inner pouring gate from top to bottom; the steering knuckle casting is further provided with a hot riser, a cold riser and exhausting pieces; the sectional area ratio of each component of the casting is that F(straight pouring gate):F(cross pouring gate):F(inner pouring gates) is equal to 1:(1.2-1.4):(1.35-1.5); the casting is obtained by controlling the pouring temperature at 1370-1410 DEG C and carrying out pouring for 5-10 seconds. The casting method has the advantages that pouring speed is high, the defects such as shrinkage porosity, shrinkage cavity and the like cannot easily occur, and the casting is high in production efficiency, low in rejection rate and excellent in mechanical property.

The invention relates to a device for expanding the pouring range of a ground pump distributing machine. The device includes a telescopic chute, a distributing bucket, and a sliding track; the telescopic chute is formed by splicing a plurality of chutes, the bottom of the telescopic chute is connected with a shear bracing, a first universal wheel is arranged at the bottom of the shear bracing, thetelescopic chute is connected with the distributing bucket, a fixed material tube is arranged at a discharge port of the distributing bucket, the fixed material tube is also connected with a foldingmaterial tube, and the distributing bucket is mounted on a support frame through a rotating shaft; and a second universal wheel is arranged at the bottom of the supporting frame, the sliding track includes a linear track and an arc track, the first universal wheel and the second universal wheel slide along the linear track and the arc track, and the arc track includes multiple concentric arcs. Thedevice for expanding the pouring range of the ground pump distributing machine can make up for the limitation of the pouring working face of the distributing machine, the number of movements of the distributing machine and the number of times of tube washing are reduced, the slide track enables the pouring surface centered on a tube head of the distributing machine, large-angle rotation pouring is carried out, the speed of concrete pouring is accelerated, and urgent interrupt of material supply on the spot can be directly controlled.

The invention discloses a multilayer casting filter, comprising a support layer (1) made of a ceramic material and a filtering layer (2) made of a ceramic material and arranged on the support layer. The filtering layer contains alveolate filtering holes (3); the support layer contains grid liquid flow holes (4); a hole density of the filtering layer is larger than that of the support layer; an aperture of a filtering hole is smaller than that of a liquid flow hole; a porosity of the support layer is larger than that of the filtering layer (2); and a thickness of the filtering layer is smaller than that of the support layer. The invention can simplify a pouring system, increase produce rate of a cast technology, reduce cast costs, enhance flow velocity and continuity of pouring, facilitate cast mold filling, improve high temperature impact resistance and high temperature bearing capacity of the filter, ensure integrity of the filter in the whole pouring process, facilitate filtering purification of metal liquid and improve inner quality and comprehensive performances of a cast product, and is suitable for pouring of multiple-part mold and large and medium size cast.

The present invention relates to the technical field of wheel hub casting, in particular to a wheel hub pattern plate and a wheel hub casting process. The lower end is connected with the middle sprue, the upper sprue is arranged on both sides of the upper part of the middle sprue, the end of the upper sprue is connected with the riser, the riser is connected with the hub shape through the riser neck, and the two sides of the lower part of the middle sprue are set The down runner is connected with the hub shape; the center hole of the hub shape is provided with a cold iron; the invention enlarges the riser, increases the down runner, speeds up the pouring speed, improves the feeding effect, and the product is qualified The rate is high; there are few rough processing parts, only the iron supplement parts need to be processed; the cooling iron is added, and measures to accelerate the cooling of castings can be used to improve the internal shrinkage and shrinkage defects of the product.

The invention provides a liquid discharging structure and a closed container with the same. The liquid discharging structure comprises a liquid outlet arranged on the closed container, and a partition board arranged inside the liquid outlet to divide the liquid outlet into an air inlet channel and a liquid discharging channel; the part, located inside an inner cavity of the closed cavity, of the partition board is fixedly provided with a baffle used for preventing liquid from directly impacting on the air inlet channel. During using, when the closed container with the liquid discharging structure pours liquid outwards, liquid flows outwards from the liquid discharging channel, external airflow stably and continuously flows into the closed container from the air inlet channel and a gas runner to balance the inner and outer pressure difference, so that the flowing interface of liquid flowing beams is stabilized conveniently, fluctuation and splashing of the liquid flowing beams are reduced, and the pouring speed is increased.

An evaporative pattern casting process includes forming a mold by burying a pattern made of resin foam in casting sand, pouring molten metal into the mold, and evaporating the pattern with the molten metal and thereby casting a product. In the evaporative pattern casting process, casting time during founding is set according to a modulus (pattern volume÷pattern surface area) of the pattern. Accordingly, the casting time in the evaporative pattern casting process is accurately set with high precision.

The invention discloses a garbage transfer vehicle with an adjustable turnover angle. The garbage transfer vehicle comprises a vehicle body, a supporting structure fixedly arranged on the vehicle body, a dumping structure fixedly arranged on the supporting structure, and a clamping and locking structure fixedly arranged on the dumping structure, wherein the rear side of a car hopper is rotated leftwards and rightwards by a certain angle through the supporting structure, the garbage dumping angle of the car hopper can be adjusted conveniently when garbage dumping is inconvenient under normal conditions, and the garbage dumping position does not need to be changed through vehicle movement; through the dumping structure, dumping of garbage in the vehicle is accelerated, the garbage dumping isaccelerated, garbage residues in the car hopper are reduced, and the car hopper and a sliding plate can be fixed through cooperation of the clamping and locking structure; and the design is differentfrom other garbage vehicles, when the normal garbage damping is inconvenient, the garbage dumping position can be changed by adjusting the angle of the rear side of the car hopper, the situation thatthe dumping speed is affected due to too high garbage accumulation is prevented, the garbage dumping is accelerated through sliding-out of the sliding plate, and the garbage residues in the car hopper are reduced.

A plastic pail having a dispensing closure and a diametrically opposed puncture zone to enable surge free pouring. The dispensing closure has a flexible pouring spout and threaded overcap. The spout dispensing passage is closed off by a tear out sealing diaphragm in initial shipping condition The puncture zone is surrounded by an upstanding retaining collar dimensioned to receive the separated tear out diaphragm which acts as a protective cover for the punctured anti-glug vent during storage and handling.

The invention discloses a 3D house printing machine which comprises a truss assembly, a mechanical arm, a discharging port and a feeding mechanism. The truss assembly comprises a truss, a truss walking mechanism, a truss lifting mechanism, a lifting cross beam and a cross beam lifting mechanism. A truss is installed on two parallel rails. The truss walking mechanism is used for controlling the truss to move horizontally in the direction of the rails. The truss lifting mechanism is used for controlling self pulling of the truss. The lifting cross beam is connected to the truss. A transverse moving mechanism is arranged on the lifting cross beam. The cross bean lifting mechanism is used for controlling the lifting cross beam to ascend and descend along the truss. The truss assembly is provided with two assemblies including a mechanical arm truss assembly and a printing machine truss assembly. The mechanical arm is fixed below the transverse moving mechanism of the mechanical arm truss assembly, the discharging port is fixed below the transverse moving mechanism of the printing machine truss assembly, and the feeding mechanism is used for conducting feeding on the discharging port. The 3D house printing machine can be used for automatically printing and building a house, automation of building of the house is improved, and the 3D house printing machine is suitable for printing ofhouses with high floors.

The invention discloses an agricultural machinery part casting device. The agricultural machinery part casting device comprises a casting rotating table, a plurality of flat plate part mold clamping grooves are formed in the top surface of the casting rotating table, the bottoms of the flat plate part mold clamping grooves are provided with a plurality of special-shaped mold clamping grooves, thebottoms of the special-shaped mold clamping grooves are provided with a jacking device used for upwards jacking molds, the bottom rod wall of a discharging guide pipe at the bottom of a melt leakage furnace is fixedly provided with a pressure plate used for pressing and covering the flat plate part mold clamping grooves, the bottom surface of the pressure plate is provided with an injection port which communicates with the discharging guide pipe and is connected with the molds, and the melt leakage furnace is overall supported on a base through a lifting mechanism. According to the agricultural machinery part casting device, casting positioning and automatic jacking can be rapidly performed through the flat plate part mold clamping grooves and the special-shaped mold clamping grooves whichare arranged on the casting rotating table, so that later-stage taking-out of the molds is greatly facilitated, the height adjustment of the injection port can be facilitated, the applicability is better, the casting time of casting of multiple parts is shortened, the casting efficiency is improved, and the casting speed is increased.

The invention discloses concrete wall rapid pouring equipment. The concrete wall rapid pouring equipment comprises a machine body, two side plates which are in front and back symmetry are fixedly mounted on the upper side face of the machine body, two fixing columns in bilateral symmetry are fixedly mounted on the upper side of the machine body, a lifting rod is in sliding connection into each fixing column, a lifting spring is connected between each lifting rod and the corresponding fixing column, an upper cover plate is in sliding connection between the lifting rods, the upper side face ofthe upper cover plate is fixedly provided with a stirring body and a high-pressure pump, a stirring cavity is formed in the stirring body, a vibration cavity is formed in the upper side of the machinebody, a belt wheel cavity is formed in the lower side of the vibration cavity, a speed adjusting cavity is formed in the right side of the vibration cavity, a solidifying cavity is formed between theupper cover plate and the machine body, a stirring device for stirring concrete is arranged in the stirring cavity, a vibrating device for vibrating the concrete is arranged in the vibration cavity,a speed adjusting device for speed adjusting is arranged in the speed adjusting cavity, according to the equipment, stirring forming of the concrete can be automatically finished, rapid filling is carried out, concrete is flatly paved in a sense manner, manpower can be reduced, the pouring speed is quickened, and the building construction efficiency is improved.

The invention discloses a tool type chute and a construction method, and belongs to the field of building construction. The tool type chute is mounted on a foundation pit enclosure structure; a support and a trestle in the foundation pit enclosure structure are used as support points of the tool type chute; and a trestle plate is provided with a trestle hole for lifting the chute. The tool type chute comprises the chute, an unloading hopper, a movable unloading hopper and a small chute. The chute is fixed in the corresponding support place through channel steel and a hoop, and is provided withan inclined angle. The chute is formed by welding two iron pipes; and an included angle is formed between the two iron pipes. The unloading hopper is arranged in the trestle hole. The movable unloading hopper is arranged in a chute lower port. The small chute is arranged in the chute lower port, and is freely rotated along with the movable unloading hopper. The tool type chute saves the labor andmaterial consumption needed by rack building, accelerates the construction speed, guarantees the safety in the construction process, widens the casting range, improves the flexibility, reduces the noise pollution, and meets green construction requirements.