9results about How to "Improve annealing efficiency" patented technology

This invention relates to a method for preventing edge overflow and bending of steel coils in a bell-type annealing furnace. When stacking steel coils, a double-ring convection system consisting of an inner and outer convection ring is placed between the upper and lower coils. Both the inner and outer convection rings consist of a ring body and multiple fan-shaped blocks evenly distributed circumferentially on the ring body. The upper and lower surfaces of the fan-shaped blocks protrude beyond the ring body and are planar. The inner and outer convection rings are coaxially arranged. The dimensions of the inner and outer convection rings are determined according to the specific location and width of the overflow edge on the steel coil, ensuring that both the inner and outer convection rings contact the flat end face of the steel coil in the area without an overflow edge. By using the inner and outer convection rings in combination to replace the existing integral convection plate structure, steel coils can be stacked and arranged in a bell-type furnace without completely avoiding the overflow edge, thereby eliminating the bending phenomenon at the overflow edge.

This utility model discloses a crystal glass annealing and heat preservation device, including an annealing and heat preservation chamber, a door movably connected to one side of the chamber, a support component for placing the crystal glass installed at the bottom of the chamber, and a heater and a temperature sensor fixedly installed on the inner side wall of the chamber. The chamber also includes a ventilation component. A controller is fixedly installed on one side of the chamber, controlling the heater, temperature sensor, and ventilation component. This utility model avoids the excessive local stress accumulation caused by placing the entire crystal glass on a table, reducing the possibility of cracking or deformation due to uneven stress during annealing, improving product yield, ensuring a constant temperature inside the chamber, creating a stable temperature environment for crystal glass annealing, improving annealing effect and product quality, reducing energy consumption, and saving production costs.

The utility model discloses fastener wire rod spheroidizing annealing mechanism, including annealing furnace and wire rod roll, and the wire rod roll is formed by the wire rod of multiple disc stacking together, still include, rotation axis, rotation axis can drive wire rod roll to spread, increase the contact area with annealing furnace space, transmission assembly can drive multiple rotation axis rotation. The utility model has the beneficial effects that, through rotation axis rotation can drive wire rod roll to spread, increase the contact area with annealing furnace space, avoid the material to produce greater temperature difference, improve annealing efficiency's simultaneously, make the grain refinement of material more stable, uniform.

The application relates to an annealing device and method of crystals, and belongs to the technical field of crystal production. The annealing device comprises: an annealing crucible for placing a plurality of crystals to be annealed, a graphite felt is coaxially arranged at the bottom of the annealing crucible, the plurality of crystals are coaxially placed on the graphite felt from bottom to top, and graphite blocks are arranged between adjacent crystals; a heat preservation layer arranged outside the annealing crucible; an induction coil for heating the annealing crucible; a liftable edge heat preservation sleeve coaxially arranged with the annealing crucible, which can extend into the interior of the annealing crucible to heat preserve the edges of the crystals; and a liftable center heat preservation column coaxially arranged with the annealing crucible, which can extend into the interior of the annealing crucible to heat preserve the center area of the crystals. The device and method can effectively realize the uniform temperature distribution of the crystals in each stage of the annealing process, greatly shorten the annealing time, improve the annealing efficiency and the quality of the crystals after annealing.

The invention relates to the technical field of metal material heat treatment, and discloses a method for improving the performance of a high-strength steel plate through electric field isothermal segmented spheroidizing annealing, which comprises the following steps: selecting a high-carbon martensitic stainless steel cold-rolled plate; fixing in a vacuum furnace, and carrying out radiation preheating to 650-750 DEG C; starting a pulse power supply to cooperate with a radiation field to rapidly heat to 1050-1080 DEG C for austenitizing; the current density is adjusted, air cooling is conducted to 730-760 DEG C, and electric field isothermal spheroidizing annealing is conducted; and finally, cooling to 450-500 DEG C along with the furnace, and then carrying out air cooling. According to the method, carbide dissolution is accelerated through the electromigration effect of pulse current, dispersion and precipitation of fine spherical carbides are promoted through segmented temperature control and an electric field morphological modification mechanism, network carbides are eliminated, the annealing period is obviously shortened, energy consumption is reduced, and the strength, plasticity and corrosion resistance of the steel plate are improved.

A crystal annealing apparatus and method are disclosed. The apparatus includes an annealing mechanism comprising a heating component forming an annealing chamber; a heat-preserving mechanism installed inside the annealing chamber, also having a heat-preserving chamber; a crucible body installed within the heat-preserving chamber; and a silicon carbide powder buffer filling the inner cavity of the crucible body, with multiple crystal accommodating spaces within it. The method involves filling the inner cavity of the crucible body with a silicon carbide powder buffer, and arranging multiple crystals spaced apart within the buffer; placing the crystal annealing apparatus carrying the crucible body in a crystal growth furnace; and annealing the crystal using a temperature gradient heating and staged differential rate cooling process to reduce internal thermal stress in the crystal. Simultaneously, the thermal stability and uniform thermal conductivity of silicon carbide powder buffer the thermal stress generated by temperature changes in the crystal. This invention effectively optimizes crystal stress, improves crystal quality, and effectively solves the technical problems of crystal cracking, stress superposition, high dislocation density, and insufficient purity.

This invention provides a continuous annealing process for high-temperature aerospace tubing. The invention relates to the field of metal heat treatment technology and includes the following steps: S1, placing multiple metal pipes parallel to each other on the top of a shelf with the bend opening facing downwards; S2, moving an annealing trolley through the multiple metal pipes via a notch; S3, controlling a lifting and positioning device and an induction heating device via a drive device to move relative to the bend opening; first, controlling the lifting and positioning device to lift and position the bend opening, then controlling the induction heating device to automatically complete induction heating by passing through the bend along a predetermined trajectory. This invention significantly improves the standardization of annealing operations, increases annealing efficiency, and greatly improves the quality of the annealed product.

The utility model belongs to the technical field of battery production equipment, and particularly relates to an annealing furnace. The utility model provides an annealing system. The annealing system comprises a base; the annealing furnace is arranged on the base, and lifting type mechanical arms suitable for clamping a battery piece base material are arranged on the two sides of the annealing furnace; corresponding door bodies are arranged on the furnace walls of the two sides of the annealing furnace and driven by corresponding driving modules to be opened and closed. Wherein after the door body of the corresponding layer is opened, the lifting type mechanical arm extends into the annealing furnace from the door body position so as to take or place a battery piece base material; according to the utility model, the door bodies are arranged on the two sides of each layer of annealing box, and the driving module is used for controlling the opening and closing of the door bodies, so that the lifting type mechanical arm can respectively take or place materials from the two sides of the annealing furnace at the same time, the time for feeding and discharging materials during annealing is shortened, and the battery annealing efficiency is improved.

A steel strip coil needing to be annealed is placed in a furnace pipe, the furnace pipe is arranged in an outer cover, and the outer cover is provided with a water cooling pipe; the spiral heating wire is arranged between the furnace pipe and the outer cover, the outer wall of the furnace pipe is movably sleeved with the spiral heating wire, and the upper end of the spiral heating wire is connected with the lifting module; the lifting module comprises a driving motor, a gear, a rack, a connecting rod and a suspender, the driving motor is arranged on the circumferential outer wall surface of the outer cover, an output shaft of the driving motor is fixedly connected with the gear, the gear is meshed with the rack, the rack is vertically arranged, the upper end of the rack is connected with one end of the connecting rod, and the other end of the connecting rod is connected with the upper end of the suspender; the lower end of the suspender penetrates through the top plate of the outer cover and then is connected with the upper end of the spiral heating wire. The all-hydrogen bell-type annealing furnace solves the problems that when an existing bell-type annealing furnace conducts annealing every time, switching between a heating cover and a cooling cover is needed, operation is tedious, and the annealing efficiency is affected.