689results about "Casting plants" patented technology

A high temperature gas turbine component for use in the gas flow path that comprises a specular optical reflector coating system. A thin specular optical reflector coating system is applied to the gas flow path of the component, that is, the surface of the component that forms a boundary for hot combustion gases. The component typically includes a thermal barrier coating overlying the high temperature metallic component that permits the component to operate at elevated temperatures. The thermal barrier coating must be polished in order to provide a surface that can suitably reflect the radiation into the gas flow path. The thin reflector coating system comprises a thin high temperature and corrosion resistant refractory stabilizing layer, which is applied over a thin reflective metal layer, which is applied over a thin high temperature and corrosion resistant refractory sealing layer. The coating system is applied over the polished thermal barrier coating by a process that can adequately adhere the reflector to the polished surface without increasing the roughness of the surface. The coating system reflects radiation back into the hot gas flow path or into the atmosphere. The reflected radiation is not focused onto any other hardware component. The design of the component is such that the radiation is returned to the gas flow path or sent to the atmosphere rather than absorbed into a component that only serves to increase the temperature of such a component.

The invention discloses a casting manufacturing method for general sand casting, which pertains to a digital-driven rapid manufacturing casting technology. The steps of the process are: the establishment of a model, the establishment of a casting system, the simulation of the casting process, the evaluation and the optimization; a molding sand with a certain proportion is mixed for preparation according to the requirements of the performance of a cast, thus preparing a sand billet; a procedure code is compiled according to the shape of a processing cavity, and the procedure code is input to a sand numerical control machine tool; the cast and a core are processed; the cast is cleared and detected; the core setting and the assembly of the cast are carried out; and the casting is carried out to form the cast. The casting manufacturing method adopts the casting and the cutting machining technologies for organic combination, which is a new cast production method. The numerical control cutting technology is adopted for processing the complicated large cast directly, which can not only eliminate the chain for manufacturing the mold, but can also improve the processing precision of the cast, reduce the thickness of the cast, improve the rigidity and reduce the weight; furthermore, the method has the green advantages of saving materials and reducing energy consumption.

In various exemplary embodiments, the present invention provides a system for the light-induced directed self-assembly (LIDSA) of periodic sub-wavelength nanostructures, including: a light source for delivering a beam of photons; a reaction chamber disposed adjacent to the light source; a gas including one or more precursor materials disposed within the reaction chamber; and a substrate disposed within the reaction chamber, wherein the substrate is positioned and configured to receive the beam of photons; wherein the beam of photons causes a periodic sub-wavelength nanostructure of one or more constituents of the one or more precursor materials to form on a surface of the substrate. In various exemplary embodiments, the present invention also provides an associated method.

Improving the resistance of members and parts disposed inside of vessels such as semiconductor processing devices for conducting plasma etching treatment in a strong corrosive environment.A ceramic coating member for a semiconductor processing apparatus comprises a porous layer made of an oxide of an element in Group IIIa of the Periodic Table coated directly or through an undercoat on the surface of the substrate of a metal or non-metal and a secondary recrystallized layer of the oxide formed on the porous layer through an irradiation treatment of a high energy such as electron beam and laser beam.

A semi-solid alloy slurry preparation and theological molding equipment belongs to semi-solid alloy slurry preparation technology field. It consists of lifting device, overheating alloy liquid smelting furnace, pouring cup, vertical snake-type pouring channel and low thermal conductivity liner, cooler and heater, preparation crucible, temperature controller and cooling components and heating components, support and push device for preparing crucible, die casting machines and injection chamber, mobile mould, shaping and injection drift pin, squeezing casting machine and injection chamber, injection drift pin, right and left mould, forging machines and upper mode and lower mold, continuous casting crystallizer, two cold water nozzle, tractor and dummy bar. The advantages are: simple construction and equipment, low investment, low production cost and it is very suitable for semi-solid alloy slurry or blank preparation and molding production.

Methods for making medical devices having porous coatings. Methods may comprise providing a tubing section having inner and outer surfaces and positioning a nozzle proximate to a target surface of the parent tubing section. A powder form of the porous coating may be delivered toward the tubing section, and a laser may be directed at the powder to melt the powder to form a melt pool. The melt pool can solidify to form the porous coating on the target surface. Portions of the parent tubing section may then be cut away to form the support structure of the medical device, such as a stent.

The invention discloses a vacuum induction melting furnace, which relates to a crucible furnace that is suitable for charging treatment in vacuum or special atmosphere. The invention provides an improved vacuum induction melting furnace with better casting cooling effect and good productivity, which comprises a vacuum melting chamber, a medium frequency coil furnace, a set of vacuum pump and a corresponding vacuum pipeline system, a electric control system, a medium frequency power supply system, a hydraulic cylinder control system, a cooling system, and a pit discharging system. The cooling system is provided with a tundish feed divider, a belt wheel cooling mechanism, a baffle cooling mechanism and a turning wheel cooling mechanism. The pit discharging system comprises a medial chamber box, an inner container, an outer container, a walking car, a hydraulic lifting cylinder, a pit track, a flap valve and a guide shell. The guide shell and the flap valve are arranged in the medial chamber box, the outer container is fixedly arranged on the walking car, and the inner container is sheathed at the inner wall of the outer container.

The invention provides a casting production line. The casting production line comprises a modeling line, a casting line, a first engine driven conveying roller line, a second engine driven conveying roller line, a first reversing machine, a first box pushing machine, a second reversing machine, a second box pushing machine, a third reversing machine, a third box pushing machine, a fourth reversing machine and a fourth box pushing machine. The first engine driven conveying roller line is connected between the output end of the modeling line and the input end of the casting line, and accordingly a sand box can be conveyed to the casting line. The second engine driven conveying roller line is connected between the output end of the casting line and the input end of the modeling line, and accordingly the sand box can be conveyed to the modeling line. The casting line, the first engine driven conveying roller line, the casting line and the second engine driven conveying roller line which are sequentially connected end to end are combined to form the casting production line, under the action of the two engine driven conveying roller lines, the production line can still operate normally when the sand box lacks, the modeling line and the casting line can operate in a crossed mode, a complementary function is achieved, and therefore production efficiency is improved.

The invention provides a production system and a production technology for a pressure casting, and belongs to the technical field of pressure casting production. The production system for the pressure casting comprises a die casting machine, a heat preserving furnace, an automatic ladle feeder, a coating machine, a piece fetching machine hand and a control system, wherein the die casting machine comprises a die-casting mold, a mold closing mechanism and an injection mechanism; the heat preserving furnace is used for fusing metal raw materials and preserving the heat of the metal raw materials; the automatic ladle feeder is used for adding molten metal in the heat preserving furnace into the injection mechanism; the coating machine is used for coating the die-casting mold; the piece fetching machine hand is used for clamping and putting the pressure casting; the control system is used for controlling the actions of the die casting machine, the automatic ladle feeder, the coating mechanism and the piece fetching machine hand. The invention further provides the production technology for the pressure casting, and the production system for the pressure casting is adopted. According to the production system and the production technology for the pressure casting provided by the invention, the production for the pressure casting is more automated, the adoption of manual operation is avoided, the manpower is saved, the production cost is reduced, and the production efficiency is improved.

The invention relates to the technical field of molten iron transfer, in particular to a transfer system of molten iron. The system comprises a front furnace transfer rail, a plurality of melting furnaces are arranged on one side of the front furnace transfer rail along the length direction of the furnace front transfer rail, the other side is provided with a plurality of middle transfer rails which are arranged to be perpendicular to the the furnace front transfer rail, and at least one front transfer trolley used for receiving the molten iron in the melting furnaces is arranged on the frontfurnace transfer rail; middle transfer trolleys are arranged on the middle transfer rails, spheroidizing stations are arranged at the tail ends of the middle transfer rails, the spheroidizing stationsare connected with lifting tilting turning rails, and the tail ends of the lifting tilting turning rails are provided with ground rotation rails; and the ground rotating rails are connected with casting rails, casting machines are arranged at the tail ends of the casting rails, lifting tilting turning trolleys are arranged on the lifting tilting turning rails. The lifting tilting turning trolleysare used for receiving casting ladles in the spheroidizing stations, and the lifting tilting turning trolleys are used for travelling on the lifting tilting turning rails, the ground rotation rails and the casting rails to transfer the molten iron in the casting ladles into the casting machines.

The invention provides a temperature measurement system including a temperature sensor and means for biasing the temperature sensor in the direction of a thermal energy source in response to receiving thermal energy from the source. The invention also provides a continuous casting system including at least one temperature sensor disposed in the secondary cooling region and means for biasing the temperature sensor in the direction of the strand of metal in response to receiving thermal energy from the strand of metal.

The invention provides a metal mold gravity casting automatic production line which comprises a molten metal heat preserving furnace and two to five gravity casting machines. The production line is characterized by further comprising an automatic casting machine, an automatic piece-taking machine, a linear guide rail, a casting conveying belt and an integrated control system. The production line can automatically finish a gravity casting process procedure of pouring, opening a mould, taking pieces, conveying, atomizing, cooling, and closing the mould. Moreover, manual operation in a traditional gravity casting is replaced, labor resources are saved, labor industrial injury is reduced, cost is lowered, and production efficiency is improved. The metal mold gravity casting automatic production line is mature in process and stable in operation.

The invention relates to a novel casting technique of a semitrailer brake drum. The novel casting technique of the semitrailer brake drum comprises the following steps of: manufacturing an inner mold shell and a pouring cup; regulating the temperature of an iron mold, covering with sands, and modeling; checking by turning over a mold; assembling a shell mold; filling iron shots; pouring and cooling; turning over the mold, discharging elements, assembling the elements, and recovering; carrying out magnetic separation, and screening; dedusting and cleaning. No deformation of the brake drum is ensured fully; the steel shots are filled in an internal mold sand shell; poured steel liquids generate pressure inward; firstly, because of the 'arch bridge principle', the internal mold sand shell has great support force; and then the steel shots also can block the pressure by steel liquids, and the internal mold sand shell cannot be cracked or deformed absolutely. Before cast elements are condensed and contracted, the internal mold sand shell is scattered, the filled steel shots are at the scattered state, the deformability of the cast elements in contraction is ensured fully, so that free contraction instead of hindered contraction is formed; a bottom-pouring-type pouring mode is adopted, air is discharged smoothly; the cracking possibility at the crossed part is reduced; air holes of the cast elements caused by dampness of a sand mold are prevented; the novel casting technique of the semitrailer brake drum is an environment-friendly casting technique.

The invention relates to an automatic centrifugal casting machine with 12 work-stations in a technical field of mechanical engineering. The machine of the invention comprises: a second motor, a reducer and a divided mechanism input end of a cam roller gear are connected through a coupling. A big plate is arranged on a main shaft, the shaft direction of which is fixed by a first lock bolt; a damping mechanism is also arranged on the main shaft; the main shaft is arranged on a front bearing seat and a back bearing seat, and the circle of the big plate is 12-sided boundaries used for arranging 12 centrifugal casting machines. The first motor is arranged on an end of the big plate and a pulley is arranged on a shaft between the tail part of the centrifugal machine and the shaft of the first motor. The power of the first motor is transmitted to the centrifugal casting machine through 3 triangle belts, and the power supply wire of the first motor goes to a ring-slipping mechanism through the inner holes of the main shaft, and the front part of the centrifugal casting machine is provided with a cylinder die. The automatic centrifugal casting machine with 12 work station greatly changes the working environment of the casting workers, reduces the working intensity of the workers, improves the safety factor of the heat working workers and meanwhile reduces the load of the staff and improves the quality and output of the products.

This invention provides a method of supplying melting metal to the automatic pouring machine, of which the speed is corresponding to the casting mold speed of the high speed casting mold machine , furthermore the melting metal that is supplied to the casting ladle is confirmed with the metal that is poured in the casting mold. Said method is characterized in that of the followed steps: 1) the predetermined amounts of alloy material related to the melting metal is put into the processing ladle that connects the melting furnace with said casting ladle, then melting metal is supplied to the processing ladle from the melting furnace, and the processing ladle filled with supplied melting metal is in a standby condition . 2) the casting ladle discharged from the automatic pouring machine is moved to the standby processing ladle; 3) the melting metal is put into the casting ladle from the the standby processing ladle; 4) the casting ladle filled with melting metal is mounted on the automatic pouring machine.

The invention discloses an all-direction wheel type movable heavy casting robot. The all-direction wheel type movable heavy casting robot comprises a four-wheel drive movable platform, a slewer, a lifting device, an in-parallel working arm, a balance weight device, an end effector and a binocular visual system. The four-wheel drive movable platform adopts a four-wheel all-direction moving and four-corner stagnation point self-balancing supporting manner, long-distance flexible and stable walking and stagnation point self-balancing supporting are achieved, the supporting stability of the work is improved, and a robot body further has five freedoms of motion of three moving actions and two rotating actions. The slewer and the lifting device can achieve slewing adjusting and lifting adjusting correspondingly, the four-freedom-degree in-parallel working arm can carry out posture adjustment on the end effector, different end effectors can be replaced according to working requirements, requirements of different operations of core assembling, core discharging, pouring, carrying and the like of middle-large size castings are met, the working efficiency, the quality and the safety of the casting robot are improved, and the labor intensity of operators and the production cost are reduced.

Methods for making medical devices having porous coatings. Methods may comprise providing a tubing section having inner and outer surfaces and positioning a nozzle proximate to a target surface of the parent tubing section. A powder form of the porous coating may be delivered toward the tubing section, and a laser may be directed at the powder to melt the powder to form a melt pool. The melt pool can solidify to form the porous coating on the target surface. Portions of the parent tubing section may then be cut away to form the support structure of the medical device, such as a stent.

A casting shakeout apparatus comprises: a first unit for vibrating a supporting member on which a casting is placed and a second unit for applying impact or vibration to the casting, wherein the second unit can move between two positions, one of which is an evacuation position for allowing the casting to be loaded and unloaded and a work position for applying impact or vibration.

The invention discloses a sand-mould casting system, which comprises an iron type sand die and the like, wherein the iron mould sand die is combined by an upper die and a lower die to form a die cavity; an upper wall and a lower wall are respectively provided with a through hole communicated with the die cavity; a combined rail comprises a casting light rail, a die-compounding light rail and two parallel lateral light rails, wherein the casting light rail and the die-compounding light rail are in parallel; the two lateral light rails are respectively and vertically connected to two ends of the casting light rail and the die-compounding light rail; one side of the casting light rail is provided with a weighing and casting device; the iron mould sand die subjected to die compounding is arranged on the die-compounding light rail and enters the casting light rail after successively passing through the die-compounding light rail and one lateral light rail; the top of the through hole in the upper wall of the iron mould sand die just faces to the casting hole of the weighing and casting device; the casted iron mould sand die enters a die-splitting turnover device to separate the upper die from the lower die; one side of the die-splitting turnover device is provided with a die turnover ejection device used for ejecting out a workpiece in the die; then, the upper die and the lower die successively pass through a sand falling and vibrating device, a temperature control and sand ejecting and molding device and a turnover die-compounding device; and the turnover die-compounding device is positioned on one side of the die-compounding light rail.

The invention relates to a pipe casting centrifuge machine by a thermodyn process, which comprises an equivalently casting device, a centrifugal host, a pushing pipe device, a pipe supporting device and a pipe connecting device. The frame of the equivalently casting device is fixed with a ladle fixing frame and a pouring ladle with a long pouring channel, and the ladle fixing frame is fixed with a same-speed board; the support wheel groups of centrifugal host are driven by a motor and support pipe die; the supporting frame of the pushing pipe device fixes a pushing rod through a guide rail, and the pushing rod is driven by a motor through pin teeth transmission for the pipe rough breaking away from the pipe die and cleaning inner wall of the pipe die and coating the inner wall of the pipe die; the pipe supporting device ensures the separation of the steel pipe from the pipe die; the pipe connecting device is used for connecting the pipe rough separated from the pipe pushing device. The pipe casting centrifuge machine of the invention can obtain the hollow steel pipe with good structure, precise size and high output rate of material and realizes whole machine automatic production.

An apparatus and method for casting metallic components is disclosed. The apparatus has a vertical parting line and a gate configuration which reduces defects within the cast components.

The present invention concerns the development of a process for obtaining γ-TiAl castings, with a maximum thickness of 20 mm, starting from melting charges constituted by commercially pure Ti and Al. In this process the metallic charge is induction melted in a ZrO2 ceramic crucible inside coated with Y2O3, the pouring being performed by centrifugation in ZrO2 moulds, with an Y2O3 contact coating, obtained by the lost wax moulding process. The whole sequence of operations is accomplished under argon atmosphere. The use of this process, besides avoiding the use of previously melted charges needing very specific furnaces, allows to obtain parts with homogeneous chemical composition and very low contamination with residual elements, without surface oxidation, with a hardness quite uniform from the surface to the inside of castings, which reveal a surface finishing identical to that recommended by the international standards for steel castings obtained by the same moulding process.

A die casting machine injecting and filling a molten metal into a cavity formed between a pair of dies so as to cast a product, comprising an ejecting pin for ejecting a casting by its front and sticking out inside the cavity and a powder feeder for feeding a powder release agent for promoting release of the casting from the dies, the ejecting pin including a release agent feed path for guiding powder release agent fed from the powder feeder to a front end of the ejecting pin and feeding it to the cavity.