39results about How to "Realize continuous casting" patented technology

The invention discloses a covering agent for smelting copper alloy, which is prepared by adopting the mixture of calcium chloride, potassium chloride, sodium chloride, sodium fluoaluminate and calcium fluoride; one layer of favourable protective layer with the thickness of 5-80 mm is formed on the surface of smelting furnace solution so as to effectively prevent oxygen in air outside a molten pool from entering and avoid oxidation burning loss of alloy elements in the smelting process, and the covering agent has the action of thermal insulation. The covering agent of the invention can ensure that copper alloy requiring vacuum smelting can be smelted under the atmospheric environment. The covering agent of the invention is suitable for smelting copper alloy, such as copper zirconium, copper chromium, copper magnesium, copper chromium zirconium and the like which contain oxidizable elements, and is suitable for ingot blank casting, vertical continuous casting, horizontal continuous casting, up-drawing continuous casting and the like.

The invention relates to a radial functional gradient composite material casting device and method, and belongs to the field of metal-based gradient composite material preparation. The casting deviceis composed of a smelting crucible, an electromagnetic induction coil, an electromagnetic separation runner, a casting mold, a cooling device and a traction mechanism. The device is simple in structure, convenient to operate and maintain and wide in application range, structural / functional adjustable functional gradient composite materials can be industrially produced in batches, the content of awild phase is increased in a gradient manner from the center to the surface in the radial direction, the size is uniform, distribution is continuous, the gradient is controllable, and the matching degree with a base body is high. The preparation method is short in technological process, high in production efficiency and high in material structure / function designability.

The invention belongs to the technical field of metal casting equipment, and particularly relates to full automatic continuous casting production equipment and technology for low-pressure casting of aluminum and aluminum alloy. The equipment consists of a smelting furnace (1), a low-pressure heat preserving furnace (2), a wheel type multi-platform casting machine (3), an automatic part-taking mechanical arm (4), an automatic dedusting-spraying-cooling three-in-one mechanical arm (5), an automatic conveyor and liquid level pressuring device (6), a temperature control cabinet (7) and a control panel (8). By adopting a numerical control multi-station and timing-sequence-sharing continuous casting technology, the raw material is fed into the smelting furnace, and is automatically transported into the heat preserving furnace after being smelted, and molten aluminum is injected into metal molds on the wheel type multi-platform casting machine under the control of the liquid level pressuring device, so that a product can be formed. A plurality of molds and corresponding mold disassembly / assembly mechanisms are arranged on the wheel type multi-platform casting machine, and the working procedures such as the casting, the shape keeping, the mold disassembling, the part taking, the cleaning-spraying-cooling, the mold assembling and the like in the process of the low-pressure casting can be completed on different stations at different times when the wheel type multi-platform casting machine rotates, so that the continuous and quantitative automatic production of the aluminum alloy cast parts can be realized.

The invention relates to a stainless steel clad plate billet conticaster. It belongs to a continuous casting device in the art of metallurgical industry. The device can be characterized in that: it comprises three synchronous circulating mobile steel band crystallizers A, B and C, which are Y- type equipped, the lower cooling steel band 2 of crystallizer A being common with the right-side cooling steel 2c of the crystallizer C, and the lower cooling steel band 2b of crystallizer B being common with the left-side cooling steel 2d of the crystallizer C. After the strand being forged by from multigroup flexible guiders, multigroup steam- water spray devices and traction roller which are under the crystallizer C, the clad plate billet is aligned to horizontality by a blending guider and a smoothing roll, and then is sent to shearer to be sheared into a definite length or sent to continuous rolling mill to roll down. The merit is characterized in that: it improves the production efficiency of the conticaster, and guarantees the quality of strand and rolled metal.

The invention relates to a method and device for continuously preparing particle-reinforced metal-based composite materials. The upward continuous casting process is used to reduce the temperature of molten metal to within 30°C above the liquidus line, and stably add ceramic particles into the molten metal through a feeding device. Powder, so that the ceramic particles are evenly distributed in the metal matrix with a certain viscosity, and after rapid solidification and molding, a particle-reinforced metal matrix composite material with uniform ceramic particle distribution and continuous production can be prepared. By adding ceramic particles in the upward continuous casting process, the invention can not only simplify the preparation process of composite materials, but also avoid defects caused by adding ceramic particles into molten metal, and can promote the solidification of molten metal by adding ceramic particles Shaping, refines the grain size of the substrate.

The invention discloses a high-efficiency continuous casting method for a closed-cell foamed aluminum ingot with a controllable structure, which belongs to the technical field of continuous preparation of porous metals. This method achieves the decomposition control of the foaming agent in the melt by changing the treatment method of the foaming agent. The continuous production not only greatly improves the production efficiency, but also solves the problem of no foam layer in the static casting. The pouring temperature, pouring speed and cooling intensity realize the continuous production of closed-cell aluminum foam ingots. This method controls the size and shape of the bubbles in the aluminum matrix by adding foaming agents of different types, different amounts, different particle sizes, and different pretreatments. The control method of the pore structure has higher feasibility and is more in line with reality. Requirements for product diversity in applications. The method is simple in process and low in cost, realizes continuous casting, greatly improves production efficiency, and is more in line with industrial requirements. The method can continuously prepare large-sized closed-cell foamed aluminum ingots with high efficiency.

The invention belongs to the field of casting, especially a cooling device for aluminum alloy casting processing equipment. The following proposal is proposed, which includes a water storage tank and a fixing plate. The middle position of the plate is rotatably connected with a rotating column, and the bottom end of the rotating column is fixedly connected with a transmission disc located below the fixed plate. There are four transmission holes arranged in a circular array on the edge of the transmission disc. The top of the water storage tank is installed with a An electric motor, the output shaft of the motor is connected with a swing piece, the top side of the swing piece is fixedly connected with a sliding block slidingly connected with the transmission hole, the top end of the rotating column is fixedly connected with a mounting plate, and four rings are fixedly connected on the mounting plate The casting mold arranged in an array is provided with a plurality of casting wells arranged in an annular array on the casting mold, and the casting wells pass through the mounting plate. The invention can realize the continuous casting of the aluminum alloy rod, and realize the secondary cooling in the casting process, the cooling speed is fast, and the processing efficiency is high.

The invention provides a crude copper pyrogenic process continuous refining technology. The technology comprises the steps that crude copper is added into an adding oxidation area, and copper liquid is obtained through fusion; oxidizing gas is introduced into the copper liquid, impurity elements in the copper liquid are oxidized to generate oxidation refining slag, and the oxidation refining slagis discharged at regular intervals; the oxidized copper liquid flows into a reducing area; a reducing agent is added into the reducing area, the oxidized copper liquid is subjected to a reducing reaction; and the reduced copper liquid flows into a casting area, wherein the adding oxidation area, the reducing area and the casting area are isolated through isolation walls, communicate mutually in the bottoms and are located in a furnace body. The crude copper pyrogenic process continuous refining technology has the advantages of being low in energy consumption, environmentally friendly, high inautomation level, high in production efficiency and the like, crude copper continuous feeding and anode copper continuous casting can be achieved, oxidation and reducing processes are simultaneously carried in the operation process, operation time can be shortened, the equipment utilization rate is improved, the smog amount and smog ingredients are stable, and concentrated treatment and waste heatrecycling can be achieved.

The invention discloses a magnesium alloy thick plate continuous production device and technology. The device includes a middle buffering ladle, a magnesium alloy refining solution feeding pipeline and a first argon conveying pipeline are connected above the middle buffering ladle, a casting pipeline is connected below the middle buffering ladle, an outlet of the casting pipeline penetrates through a crystallizer cover and stretches into an inner cavity of a constant temperature controlling segment of a crystallizer, a plate belt surface anti-corrosion protection segment below a solidification segment of the crystallizer is connected with guiding rollers which are closely arranged, a plate blank cutting and separating device for cast blanks and a cast blank transferring mechanism are arranged below the guiding rollers which are closely arranged, a cutting and collecting device is arranged on the lower portion of the cast blank transferring mechanism, and the cutting and collecting device is connected to a cutting and concentration conveying device. According to the technology, magnesium alloy liquid is transported into the closed combined crystallizer through the pipeline and solidifies while moving downwards, the solidified surface is subjected to anti-corrosion treatment, the magnesium alloy thick plate blanks are continuously pulled out through a supporting and pulling roller, the plate with certain length and width larger than 50 mm is formed through subsequent cutting and separating, and the production efficiency of the magnesium alloy thick plate blanks is improved.

The invention provides a crude copper fire continuous refining device comprising a furnace body and a floss hole formed in the top of the furnace body. The furnace body is internally provided with a charging oxidation zone, a reduction zone and a casting zone which are partitioned through partition walls, but the bottoms of the charging oxidation zone, the reduction zone and the casting zone communicate mutually; and the reduction zone is located between the charging oxidation zone and the casting zone. The crude copper fire continuous refining device has the advantages of lower energy consumption, environmental friendliness, high automation level, high production efficiency and the like; crude copper continuous feeing and anode copper continuous casting can be achieved, the oxidation andreduction processes are conducted simultaneously during running, the operation time can be shortened, the utilization rate of the crude copper fire continuous refining device is increased, meanwhile,the flue gas volume and the flue gas ingredient are stable, centralized treatment can be achieved, and waste heat is recycled.

The invention provides a continuous smelting and casting method of high-quality zirconium-containing magnesium alloy. The continuous smelting and casting method comprises the three continuous steps of high-density solvent refining for impurity removal, zero-impurity drag-in type degassing treatment and solvent-free efficient alloying, wherein rapid separation of a pure magnesium melt and slag is achieved through the high-density solvent refining for impurity removal, then degassing treatment is conducted on the refined pure magnesium melt by adding a zero-impurity drag-in paraffin-graphite degassing agent, finally the alloying is completed by adding a zinc element, magnesium-zirconium intermediate alloy subjected to isothermal forging deformation treatment and magnesium-rare earth intermediate alloy subjected to isothermal forging deformation treatment in a solvent-free crucible, and casting and forming of the high-quality zirconium-containing magnesium alloy melt are completed in a tilt rotating mode of the crucible. The continuous smelting and casting method meets the component ageing sensibility and high melt quality requirements of the zirconium-containing magnesium alloy, and the continuous smelting and casting method of the high-quality zirconium-containing magnesium alloy is low in inclusion content and low in melt gas content and capable of efficiently utilizing alloy elements and achieving continuous smelting and casting.

The rare earth-treated low-cost, high-toughness, low-temperature pressure vessel steel plate and a production method thereof provided by the invention are composed of: C0.10-0.16%, Mn1.20-1.60%, Si0.20-0.50%, P≤0.020%, S ≤0.005%, Nb: 0.015-0.025%, Ti: 0.010-0.020%, Alt: 0.020-0.040%, La+Ce: 0.0020-0.0040%, O≤20ppm, the rest are Fe and inevitable inclusions. The low temperature toughness of steel is further improved by microalloying elements Nb, Ti and trace rare earth alloys. The rare earth steel is produced by strictly controlling the content of O and S in the molten steel. In the later stage of smelting, the Ca content in the molten steel is kept at a high level by calcium treatment. Stability issue.