335results about "Forge furnaces" patented technology

A method of thermal forming of refractory alloy suture needles is disclosed. Needle blanks made from refractory alloys are used to form surgical needles, which are heated to a temperature above the ductile to brittle transition temperature but below the recrystallization temperature of the refractory alloy. The heated needle blanks are then mechanically formed into a surgical needle. A Fixture and an apparatus for forming refractory alloy surgical needles using this method are also disclosed.

The invention relates to a forge heating furnace. The forge heating furnace comprises a furnace body, a heating mechanism, a waste heat utilization mechanism and a feeding mechanism, wherein the furnace body comprises a furnace chamber; the heating mechanism heats the inner side of the furnace chamber; the waste heat utilization mechanism guides waste gases after burning in the furnace chamber so as to utilize the waste heat; the feeding mechanism comprises a clamping mechanism and a material pushing mechanism; the clamping mechanism automatically and continuously clamps materials to the entrance of the furnace chamber; and the material pushing mechanism automatically pushes the materials into the furnace chamber. The feeding mechanism of the forge heating furnace feeds materials by adoption of the clamping mechanism matching with the material pushing mechanism, the clamping mechanism can continuously clamp materials to the material pushing mechanism repeatedly, and the material pushing mechanism correspondingly pushes the materials to the furnace chamber, so that the automation degree is high, the manpower labor input is reduced, and the forging efficiency is greatly increased.

The invention relates to a high-strength aluminum alloy isothermal direction-change open die forging method which comprises the following steps: heating preprocessed high-strength aluminum alloy blank in a direction-change isothermal forging heating holding furnace at the temperature of 350-450 DEG C, and keeping the furnace temperature unchanged; and according to the structure property indices required by the blank, repeatedly upsetting and drawing the blank in the direction-change isothermal forging heating holding furnace until the blank reaches the design size of the forge piece. The isothermal direction-change open die forging device comprises a heating furnace and a forging press, wherein the furnace body is installed on the forging platform of the forging press; the forging rammer of the forging press is installed in a through hole in the furnace bottom plate; and the forging head of the forging press is installed in a through hole in the furnace top plate. The invention has the advantages of simple technique, convenient operation, and low tendency to recrystallization, enables the high-strength aluminum alloy to be under isothermal conditions all through the direction-change open die forging process, does not need to heat the blank again in the forging process, improves the quality of the forge piece and enhances the forging efficiency; and the forge piece has the advantages of sufficient structure deformation, uniform deformation at each part, and low tendency of cracking. The forge piece has favorable structure properties, and is suitable for industrial production.

The invention provides a heating furnace before forging, which belongs to the technical field of machinery and solves the problems of severe production environment, low work efficiency and large energy waste when traditional heating equipment before forging works. The heating furnace before forging comprises a heating device and a furnace body, wherein the furnace body is provided with a feed opening and a discharge opening, an automatic feeding mechanism is arranged at the feed opening of the furnace body, a conveying device capable of conveying a blank from the feed opening to the discharge opening is arranged in the furnace body, the heating device is arranged on the furnace body and used for heating the blank conveyed in the furnace body, and a heat insulating device is also arranged on the side wall of the furnace body. When in working, the heating furnace before forging has the advantages of good working environment, simple operation, high work efficiency, less energy waste and high quality of processed products.

The invention relates to steel plate hot forging continuous production equipment comprising a loading assembly, a heating assembly and a forging and pressing assembly. The heating assembly comprises aheating furnace. The heating furnace is internally horizontally provided with a conveying device, the forging and pressing assembly comprises a base, the upper surface of the base is flush with the upper surface of the conveying device, the length direction of the base is the same as the conveying direction of the conveying device, and the base comprises a temporary storage table capable of abutting against one end of the conveying device and a working table with one end abutting against the other end of the temporary storage table; the upper side, corresponding to the working table, of the base is provided with a forging and pressing head capable of doing reciprocating motion in the vertical direction, the two sides of the base are each provided with a moving frame and a first driving mechanism capable of driving the moving frame to move in the length direction; and the sides, getting close to each other, of the moving frames are provided with clamping plates with the length the sameas the length of the base and second driving mechanisms capable of driving the clamping plates to move in the direction getting close to each other. The steel plate hot forging continuous productionequipment can realize automatic continuous work from heating to forging and pressing of a workpiece, the working efficiency is improved, and the dangerous effect is reduced.

The invention is about the fire stove, which concerns fire equipment technique field. The invention makes use of firing heat the stove indirectly, avoiding the direct contact of fire and material, so it overcome the material over fire phenomenon, at the same time, the smoke go to the stove up to down, increasing the heat time for a time. Compared with the fire material directly, it increases the heat effect by much time. The material in the invention can stop for some seconds to hours, the temperature of the stove is 500-1300 degC, the difference in temperature is between minus 5 and plus 5 degC. The invention transfers the heat fast, the temperature in the stove is even, and it uses low energy.

The invention provides a forging method of a Ti80 titanium alloy. A segmented heating method is adopted before forging in a beta single-phase zone so as to ensure that a titanium alloy billet is through heated and effectively avoid the excessive growth of grains. According to the forging method, the titanium alloy billet deforms sequentially from a temperature above a phase transition point to a temperature below the phase transition point, so that the sufficient deformation amount per heating number is ensured, and the cracking of the titanium alloy billet is prevented. The Ti80 titanium alloy bar prepared by the forging method has the uniform structure at head, middle and tail parts; the primary alpha phase is equiaxial, and the content of the primary alpha phase is 60%-80%; after the bar is annealed at the temperature of 100 DEG C under the phase transition point, the head, middle and tail parts of the bar have stable mechanical properties, the room temperature tensile strength is greater than or equal to 900MPa, the yield strength is greater than or equal to 750MPa, the elongation percentage is greater than or equal to 8%, the percentage reduction of area is greater than or equal to 15%, and the impact toughness at the temperature of minus 10 is greater than or equal to 35J/cm<2>; and the Ti80 titanium alloy bar has uniform structure and stable performances at each part, and meets the requirements of current marine applications. The forging method has the characteristics of simple operation and strong operability.

The invention discloses an automobile control arm forging production line. The production line comprises a blank making area, a die forging area and a heat treatment area which are sequentially arranged according to a production technology. A plurality of mechanical arms used for conveying workpieces are arranged among the areas. The blank making area comprises a first heating furnace and a rollerforging machine. The die forging area comprises a second heating furnace and a die forging press machine set, the die forging press unit is used for forging forming of a blank obtained after secondary heating, and the workpieces are conveyed to the heat treatment area through the mechanical arms. The heat treatment area comprises a solution treatment furnace and a cooling device, the solution treatment furnace is used for carrying out solution treatment on the forged workpieces, the workpieces are conveyed to the cooling device through the mechanical arms, and a finished product bin is connected to a discharge port of the cooling device. The automobile control arm forging production line is reasonable in layout, high in automation degree and good in stability; the heat treatment area is additionally arranged, so that the production time is shortened, and the production efficiency is improved; and the heating process adopts jet flow heating, so that the heating speed and heating uniformity of the blank are improved, and the product quality is effectively improved.

The invention discloses a movable closed isothermal forging die heating device. The movable closed isothermal forging die heating device comprises a heating furnace box. Holes the same as press die bases in size are formed in the upper end face and the lower end face of the heating furnace box. Guide rails are laid beside a press. A heating furnace can be accurately arranged on the press lower die base through the guide rails. The upper die base penetrates the hole formed in the upper end face of the heating furnace to enter the heating furnace. In the forging process, the heating furnace box is completely closed, and temperature losses are avoided. It is guaranteed that in the forging process, heat losses are avoided, the die and forged blank temperature is constantly unchangeable, reduction of the temperature of a forged blank in the forging process is avoided, forging cracking of a deformation temperature sensitive material is eliminated, and superplastic deformation of a metal material is better achieved. The movable closed isothermal forging die heating device is easy to manufacture, and real isothermal forging can be achieved.

The invention provides a continuous forging heating furnace which comprises a furnace body, a heating mechanism and a machine frame; the furnace body and the heating mechanism is arranged on the machine body; the furnace body comprises a furnace chamber which runs through the furnace body; a furnace wall as well as the feeding end and the discharging end of the furnace body are correspondingly formed; a guide groove is formed in the furnace chamber; the heating mechanism comprises a plurality of burners; the burners are installed at the discharging end close to the furnace body and the top part of the furnace body, and enter into the furnace chamber through the furnace wall in a way that acute angles are formed between the directions of the burners and the material guiding direction. The continuous forging heating furnace can fully preheat materials and facilitates heat energy conservation and utilization.

A billet heating mechanism comprises a body casing (2) composed of a frame (3) without furnace wall and with communicated inside and outside; a slide track (5) for supporting the billet (W) filled in the body casing (2) under the atmosphere condition; and a plurality of pure oxygen or oxygen boosting combustors (4) arranged on the body casing (2) for making the burning flame to strike the total length and full circumference of the billet (W) to heat the billet (W). The ratio of the diameter (D) of the nozzle (12) of the combustor (4) and the distance (L) between the outer surface of the billet (W) and the nozzle (12) is defined from 0.02 to 0.04, the interspace (P) between the nozzles 12 is 30 to 50 times of the diameter (D) of the nozzle. Adopting the invention, the heating ability and heat efficiency exceed the electromagnetic induction heating mode can be realized.

The invention relates to a horizontal type device for reheating a semi-solid metal blank material, which comprises an induction heating power supply, an induction heating mechanism, and a blank material carrying mechanism, and is provided with five stations, such as at least three material heating stations, a material placing station and a material discharging station, wherein the induction heating mechanism adopts three sections of induction heating coils which are separately and horizontally arranged, and all the induction heating coils are mutually electrically communicated and arranged on the three material heating stations respectively; the blank material carrying mechanism comprises a feed mechanism and a blank material transporting device; the blank material transporting device is a delivering device processing in front of each station; and the feed mechanism is positioned in front of each induction heating coil. The induction heating three-section heating mode is selected to make the heating of the blank material and the distribution of the temperature field more even and reasonable. The horizontal structure is adopted, the blank material cannot collapse or discharge fluid, and the blank material transportation is simple and convenient because of a large contact surface between the blank material and a supporting part. The blank material is allowed to have a higher liquid phase fraction, which is convenient for the thixotropic forming of more complicated parts.

The invention relates to a mould heating furnace for isothermal forging. The mould heating furnace is characterized in that: (1) the heating furnace mainly comprises an outer furnace and an inner furnace, the outer furnace has a large annular structure, and the inner furnace is a cylindroid consisting of a fireproof layer and is sleeved in the center of the inner cavity of the outer furnace; and (2) an outer furnace heating element is made of resistance wires which are annularly equidistantly distributed on the inner edge surface of the inner cavities of the upper furnace body and the lower furnace body from up to down; and an inner furnace heating element is made of a resistance belt; and the resistance belt is wound into a loop shape and is uniformly hung on the outer surface of the cylinder of the inner furnace. Compared with the prior art, the heating furnace heats large and super-large circular overall frame isothermal forging moulds with single holes, ensures the normal heating speed and solves the problems that large temperature gradient change influences the moulds and k403 materials have thermosensitivity when heated.

The invention provides a heating furnace for continuous forging production. The heating furnace comprises a furnace body, a heating mechanism and a frame, the furnace body and the heating mechanism are arranged on the frame, the furnace body comprises furnace walls, a hearth, a feed end and a discharge end, the hearth is enclosed by the furnace walls, a guide groove is formed in the hearth, the heating mechanism comprises a plurality of burners, the burners penetrate the furnace walls and enter the hearth, the discharge end is provided with a discharge frame, the discharge frame comprises a bottom wall, the bottom wall is connected with the bottom surface of the hearth, and an included angle is formed between the bottom wall of the discharge frame and the horizontal feeding direction of the hearth and ranges from 35 degrees to 45 degrees, so that materials cannot stick to the bottom wall and can smoothly slide out, the impact force on a furnace door is small, and the furnace door cannot deform or be damaged.

The invention relates to the technical field of automobile wheel hub manufacturing, and particularly discloses a vehicle wheel automatic closed-die forging production line, a vehicle wheel automatic closed-die forging production technology and an aluminum alloy vehicle wheel. The vehicle wheel automatic closed-die forging production technology comprises the steps of bar material saw cutting, bar material preheating, vehicle wheel blank rock rolling pressing, vehicle wheel blank initial forging closed die forging, vehicle wheel blank final forging closed die forging, vehicle wheel blank chambering, window and central hole punching, compound forging, spinning, vehicle wheel blank heat treatment and a vehicle wheel machining. With the vehicle wheel automatic closed-die forging production technology, the pressing technology of aluminum alloy wheels is simplified, the cost, time and manpower needed for secondary machining and shaping in the later period are greatly saved, and the safety andthe working efficiency of equipment in manufacturing are improved; and additionally, workpiece conveying and feeding are accurate in positioning and convenient to operate, the automation degree is high, and therefore, the requirements of an automatic manufacturing technology of aluminum alloy wheels can be met.

The present invention provides a method that forms individual semiconductor devices from a semiconductor substrate including a first face having a first region in which micro-mechanical elements are formed and a second region which surrounds the first region and in which a scribe line is formed, and a second face having a third region which is opposed to the first face and corresponds to the first region in which the micro-mechanical elements are formed and a fourth region which surrounds the third region and corresponds to the second region. The method includes steps of thinning the fourth region of the second face which corresponds to the scribe line formed in the second region of the first face, and cutting the semiconductor substrate along the scribe line formed in the second region of the first face.

The invention discloses a horizontal-type workpiece hot press which comprises a lifting machine, a calcinator, a screening and conveying device and a press body. The screening and conveying device isconnected with the lifting machine hoist, the calcinator and the press body. The outlet end of the calcinator is provided with a fire-spitting lamp which spits a fire towards the calcinator. A controlvalve is arranged on the calcinator to control supply of combustion gas connected with the fire-spitting lamp. Blank materials which are cleared and arranged through the lifting machine are conveyedthrough the screening and conveying device to pass through the calcinator firstly, then pass through a detection probe to be screened, and then enter the press body. The press body comprises a rack, apress main body and a stamping machine head, wherein the press main body and the stamping machine head are arranged on the left side and the right side of the rack correspondingly. The stamping machine head is mounted on a mounting plate and connected with a hydraulic cylinder. A push rod assembly and a limiting rod assembly drive the mounting plate and the stamping machine head to get close to the press main body, and the hydraulic cylinder drives the stamping machine head to form the blank materials in a stamped mode towards the press main body. Automatic feeding, calcination, conveying andforging forming of the blank materials are achieved, products are fully-automatically integrally formed, and intelligent control is achieved on all parts.

The invention relates to a superplastic diffusion bonding hot-forming press for a titanium alloy sheet part, which comprises a three-beam four-post type machine body, a working oil cylinder, a slide block and a movable worktable, wherein the three-beam four-post type machine body comprises an upper cross beam, a lower cross beam and a upright post. The superplastic diffusion bonding hot-forming press is characterized in that platforms made of ceramics and steel materials are respectively fixed on the lower plane of the slide block and the upper plane of the movable worktable; a synchronous adjusting mechanism for ensuring the pressing precision of the press in the forging process is installed among four corners of the upper cross beam and the lower cross beam through a support frame; and a heat insulation device is installed on the periphery of a working area of the press. The superplastic diffusion bonding hot-forming press has the advantages that the temperature of the forging press can be guaranteed not to be greatly lost, the pressing temperature during workpiece pressing is in a high-temperature state of 1000 DEG C continuously, and a mould is not required to be repeatedly heated in the forging process, so that the quality of pressed workpieces is ensured; the energy sources can also be greatly saved, the processing cost is reduced, and the production efficiency is improved; and the self parallelism degree of the slide block in the downward movement can be automatically adjusted by the synchronous adjusting mechanism to ensure the pressing precision of the titanium alloy sheet part in the forging process.

The invention relates to a heating furnace, in particular to a valve pre-forging constant temperature heating furnace. The heating furnace comprises an inner furnace frame and an outer furnace frame, wherein the inner furnace frame is arranged in the outer furnace frame through a strut; a bracket is respectively arranged at two ends of the inner furnace frame; a feeding guide rail, a furnace wirepipe and a cooling bar are arranged on the bracket; two ends of the feeding guide rail extend out of the outer furnace frame respectively; a furnace wire is arranged in the furnace wire pipe, two ends of the furnace wire are fixedly connected with the cooling bar, and the other end of the cooling bar is connected with an external circuit; an outer heat insulation layer is arranged between the outer furnace frame and the inner furnace frame, and an inner heat insulation layer is arranged between the inner furnace frame and the furnace wire pipe; and a temperature sensor sleeve passes through the inner furnace frame and the outer furnace frame and is fixed on the inner heat insulation layer and the outer heat insulation layer, and a temperature sensor is arranged on the temperature sensor sleeve. The heating furnace can be used for heating a blank to a forgeable temperature range, is high in heating efficiency, and can accurately control the tapping temperature of the blank so as to greatly save the production cost and improve the quality of the product.

The invention relates to a muffle moving bed incineration device, which can solve the problems of local temperature overheating of incinerator which can cause overheating material, can strengthen the heating speed of incineration material, and can effectively utilize the discharged energy when burning fuel in the burning chamber. The invention utilizes the high-temperature flame and high-temperature smoke to indirectly heat the incinerator of moving bed; the high-temperature smoke can quickly enter high-velocity fluidized bed; the high-temperature gas can form gas-solid high-velocity fluidized mixing heating on the preheated material, therefore, the high-temperature gas and material can generate effective high-velocity heat and mass transfer; the material which has been heated to demanded temperature via the gas-solid separation of high-temperature gas-solid separator is fed into the incinerator of moving bed to be incinerated; the separated gas is used to preheat material; the hot material is fed into storehouse via the cooling discharge device; the average residence time of material in the incinerator of said muffle moving bed incinerator can be adjust between several minutes to hours, while the incinerator temperature is controlled between 500-1200Deg. C and the furnace temperature difference is controlled in í‚5Deg. C.

The invention discloses a rotary quick uniform low-energy heating furnace structure for metal billets and is applicable to the field of metal forge and press. The rotary quick uniform low-energy heating furnace is characterized in that the rotary quick uniform low-energy heating furnace structure is provided with layered hot-air inlet air deflectors (1), a layered circular air deflector (2), biarc inner air deflection walls (3), a central closed air deflection cylinder (5), an outer air deflection wall (6), double horizontal air-return passages (8), return hot-air inlet structures (9), a rotary spindle (14), a long round pipe set (10) supporting multilayer horizontal ring sets (11), and short round pipe sets (15) supporting a rack storing billets (17). The outer air deflection wall is provided with multiple layers of furnace doors (18), a driving mechanism drives the spindle (14) to rotate, a heating device provides hot air, and the hot air circulates by a fan. The problems about high-speed uniform distribution of hot air, quick and uniform heating, efficient low-energy utilization, air leak and suction of the furnace doors are solved. The heating furnace structure is compact, low in hot-air flow resistance and energy consumption, fast and uniform in heating and quite applicable to heating aluminum alloy bars.