41 results about "Raised temperature" patented technology

A screen making machine includes a table, welder assembly, and actuation assembly. The welder assembly includes: first and second nozzles, a pump that pumps air through each nozzle, and a roller. The first nozzle, second nozzle, and roller are positioned in line and spaced apart. The actuation system moves the welder assembly along each side of the frame. Hot air from the first nozzle elevates a temperature of the mesh and adjacent frame to a first elevated temperature, and subsequent flow of hot air from the second nozzle elevates them to a second elevated temperature, being above a melt temperature of the surfaces of the mesh and frame. The roller presses the melted mesh surface against the melted frame surface, to melt fuse them together. A top surface of the table is heated to thereby heat a second side of the frame, facilitating better welds.

Provided are a first temperature raising device that is provided in a rolling line between a continuous casting machine 12 and a rough rolling mill 70, a second temperature raising device that is provided in a temperature raising line different from the rolling line, a first slab transportation device 40 that can move a slab 100 between the exit side of the slab 100 in the rolling line of the first temperature raising device and the entry side of the slab 100 in the temperature raising line of the second temperature raising device, and a second slab transportation device 42 that can move the slab 100 between the entry side of the slab 100 in the rolling line of the first temperature raising device and the exit side of the slab 100 in the temperature raising line of the second temperature raising device, and the first temperature raising device has a first IH slab heater 20 and the second temperature raising device has a second IH slab heater 22. Accordingly, it is possible to provide a temperature raising device, a rolling facility including the same, and a temperature raising method of a cast slab that can improve the temperature raising efficiency before sending the cast slab to a rough rolling mill as compared with the conventional technique.

There is provided a heating device heating a can body with hot air, the heating device including a heating unit configured to generate the hot air, a first heating portion configured to heat the can body to raise a temperature of the can body with the hot air, and a second heating portion configured to heat the can body that has been heated to the raised temperature. At least one of the first heating portion or the second heating portion may include a plurality of heating sections having different heating conditions of the can body.

The utility model provides a feeding mechanism of a floor paint spraying machine, which relates to the technical field of floor paint spraying equipment and comprises a bottom plate, the top of the bottom plate is fixedly connected with a storage tank, the outer surface wall of the storage tank is fixedly sleeved with a jacket, the outer surface wall of the jacket is fixedly communicated with a water inlet pipe, and the input end of the water inlet pipe is fixedly communicated with a circulating pump. The input end of the circulating pump fixedly communicates with a water outlet pipe, the input end of the water outlet pipe fixedly communicates with a water tank, and the inner surface wall of the water tank is fixedly connected with a temperature sensor. According to the floor paint heating device disclosed by the utility model, the floor paint in the storage tank can be uniformly heated under the interaction of all the components of the device, so that the floor paint can be quickly heated when the external temperature is too low, the viscosity of the floor paint is kept in a suitable range, the fluidity is good, and the flow speed is kept stable in the process of conveying the floor paint to the spray gun; therefore, uniform spraying is realized.

The utility model discloses a device for monitoring PE-RT pipe temperature on line, which comprises a cooling water tank, a pair of reversing roller assemblies, at least two lifting support assemblies and a temperature sensor, the cooling water tank is provided with two first side walls and two second side walls, the two first side walls are respectively provided with a pipe inlet and a pipe outlet, and the two second side walls are respectively provided with a pipe inlet and a pipe outlet. The reversing roller assemblies comprise reversing rollers, the two reversing rollers are fixedly installed in the cooling water tank, one reversing roller is close to one second side wall, the other reversing roller is close to the other second side wall, and the multiple supporting and guiding assemblies are distributed between the two reversing rollers. One supporting and guiding assembly is located between the pipe inlet and one reversing roller, the other supporting and guiding assembly is located between the other reversing roller and the pipe outlet, and the temperature sensor is installed on the pipe outlet. According to the device, the offline pipe temperature of the PE-RT pipe is monitored through the temperature sensor at the pipe outlet of the cooling water tank, and the offline pipe temperature of the pipe is controlled according to qualified temperature ranges in different seasons.

Provided are a cooling device and a cooling method that are capable of reducing the compression power used for cooling a raw material gas. This cooling device comprises: a gas introduction part that receives a compressed raw material gas from a raw material gas supply source; a first expansion part that allows a first portion of the raw material gas to expand; a first heat exchange part that cools a second portion of the raw material gas by using the first portion having a lowered temperature due to the expansion; and a compression part that compresses the first portion having an increased temperature due to the heat exchange, and that causes the first portion to converge with the raw material gas received from the gas introduction part.

Particularly, proposed is a manufacturing method for a paper-made binding comb. The manufacturing method includes: providing a combined roll paper in which an inner roll paper and an outer roll paper are combined at a low-temperature by a low-temperature-sensitive molding material therebetween, the inner roll paper and the outer roll paper, each having a first side surface coated with a high-temperature-sensitive bonding material; slitting the combined roll paper at a predetermined width, and cutting the slitted roll paper such that the slitted roll paper has a comb part and a comb-connecting part, thereby forming a flat comb-shaped paper-binding piece; raising a temperature to the low-temperature such that only the low-temperature-sensitive molding material is melted; and transferring the flat comb-shaped paper-binding piece to a molding apparatus and molding the flat comb-shaped paper-binding piece into a cylindrical shape.

The invention provides a foaming method of a fused deposition modeling printing material, which comprises the following steps: S10: placing a fused deposition modeling printing prefabricated part in a foaming kettle, raising the temperature in the foaming kettle to 130-140 DEG C, then introducing nitrogen to enable the pressure to reach 18-20 MPa, and keeping for 30-60 minutes; s20, carbon dioxide is introduced into the foaming kettle, then the temperature in the foaming kettle is reduced to 110 DEG C to 120 DEG C, the pressure is adjusted to 10 MPa to 15 MPa, and the temperature is kept for 8 h to 12 h; and S30, after the pressure maintaining time is over, a cooling medium is sprayed into the foaming kettle, so that the surface temperature of the prefabricated part is reduced by 10-20 DEG C within 30-60 seconds, then pressure relief is conducted at the pressure relief rate larger than 10 MPa / s, the prefabricated part is foamed and expanded, and the needed foaming material is obtained. The printing material is foamed, so that the density and hardness of a 3D printing finished product are reduced, and the rebound resilience is improved.

The invention relates to the technical field of electric tool control, in particular to an electric chain saw performance regulation and control method, system and equipment based on cutting temperature, and the method comprises the steps: setting a plurality of grades of temperature thresholds and a plurality of grades of cutting performance corresponding to the temperature thresholds in sequence from low to high, a plurality of grades of matching relations that the cutting performance is reduced along with the rise of the temperature threshold are formed; the cutting temperature of the electric chain saw is detected in real time through a temperature sensor, and the cutting temperature is compared with a temperature threshold value; and when it is detected that the cutting temperature is larger than or equal to the temperature threshold value of any gear, the electric chain saw is reduced to the corresponding cutting performance based on the matching relation of the gear to conduct cutting operation. Through the multi-level stepped matching relation between the temperature threshold value and the cutting performance, the effect that the cutting performance is reduced step by step when the cutting temperature of the electric chain saw rises is achieved, the shutdown waiting time is shortened, and the cutting efficiency is improved.

The invention discloses a bridge structure helpful for improving durability, and belongs to the technical field of road and bridge facility construction, the bridge structure comprises a first telescopic plate, a second telescopic plate and a multi-stage buffer mechanism, the bottom of the first telescopic plate is provided with a temporary storage water tank provided with a plurality of water inlets and water seepage holes, and an air guide pipe is assembled in the second telescopic plate; two groups of multi-stage buffer mechanisms are respectively arranged in the assembly cavity; a plurality of through holes are formed in the top of the multi-stage buffer mechanism corresponding to the second telescopic plate and correspond to the water seepage holes in the expansion state to reduce temperature and restrain expansion, and a plurality of air guide holes are formed in the top of the multi-stage buffer mechanism corresponding to the first telescopic plate and correspond to the side wall air outlets of the air guide pipes in the contraction state one to one to increase temperature to restrain contraction. By the adoption of the bridge structure beneficial to improving the durability, the problems that an existing bridge expansion joint is poor in thermal expansion and cold contraction restraining effect, a buffering piece insufficiently absorbs composite impact force, and the structural stability is insufficient are solved.

The invention provides a dynamic regulation and control device and method for a last-stage blade tip clearance of a gas compressor based on a phase-change material and application. Firstly, based on the dynamic change rule of the blade top clearance of the gas compressor under different cold and hot state working conditions, the regulation and control requirements of the last-stage blade top clearance are determined; according to the thermophysical and structural deformation characteristics of the phase change material, a correlation model of different temperature excitation and the deformation scale of the phase change material is constructed. The dynamic blade tip clearance regulating and controlling device based on the phase-change material comprises a displacement control rod, a reset spring, a piston, a piston sealing ring, the phase-change material and an outer shell. When the temperature rises to a critical point or above, thermal excitation causes volume expansion of the phase change material, the piston and the displacement control rod are pushed to move outwards in the radial direction, and the gap is increased; when the temperature is reduced, the phase change material shrinks, the reset spring pushes the piston to return to the original position, and the gap is reduced. And fine regulation and control of the blade tip clearance are realized by screening temperature excitation and phase change material key parameters required by different working conditions.

An image forming apparatus includes a fixing device, a motor, and a controller. The fixing device includes a heating unit and a first temperature sensor. The controller is configured to perform driving the fixing device. The driving includes a heating process. The controller is further configured to perform, during the heating process: a first control operation in which the controller rotates the motor at a first rotational speed and adjusts a duty cycle of electric power suppled to a heater of the heating unit to a higher value as a deviation between a target temperature and a temperature detected by the first temperature sensor becomes greater; and a second control operation in which the controller rotates the motor at a second rotational speed lower than the first rotational speed and restricts the duty cycle within a range lower than or equal to a restricted value.

Disclosed is an apparatus for forming magnesium alloy pipes. The apparatus for forming magnesium alloy pipes comprises: a heater unit that heats a workpiece to a preset temperature and maintains the raised temperature; a die unit in which the size of a forming space varies according to the rotational force generated while rotating; a moving unit for moving the heated workpiece into the forming space; and a processor that adjusts the rotational angular velocity of the die unit according to the axial pipe size of the heated workpiece, forms the workpiece according to the varied size of the forming space according to the rotational angular velocity, and adjusts the heating performance of the heater unit according to the rotational angular velocity. Accordingly, precise plastic forming of magnesium alloys becomes possible, and the quality of magnesium alloy formed products is uniformly maintained so that the defect rate decreases.

The application relates to the field of light projectors, and discloses a water cooling mechanism of a plastic extruder, which comprises a cooling box, the cooling box comprises a box body and a liquid distribution assembly, and the inner top surface of the box body is fixedly provided with the liquid distribution assembly. The cooling water with a raised temperature after use is guided to the inner side of the cooling box through the liquid inlet assembly, so that the cooling water is accumulated in the inner side of the liquid storage frame; when the accumulated liquid level is higher than the liquid guide hole on the liquid storage frame, the cooling water enters the inner side of the liquid discharge frame through the liquid guide hole, flows out through the liquid discharge hole on the liquid discharge frame, and the multiple liquid discharge holes are arranged, so that the high-temperature cooling water guided to the inner side of the cooling box is branched into small water lines and flows to the bottom of the cooling box; meanwhile, the fan of the cooling assembly arranged on the cooling box is started, so that the fan blows and cools the multiple small water lines; the contact area of the cooling liquid and the cooling air is increased through the branching, so that the cooling efficiency of the cooling water during the circulation is improved, and the cooling effect is improved.

To provide a stereo temperature wave measurement device and method capable of easily measuring a heat flow direction in an anisotropic material or in a composite material, the method beng a novel hot transport evaluation system in a STEM.SOLUTION: The invention comprises: a heating unit for heating, using a pulse-state electron beam with a prescribed frequency (f), first and second contact pieces which are formed of a second metal material for generating thermal electromotive force to a first metal material, and which contact at two positions (T1 position (F point), T2 point (E point)) of a sample formed of a first metal material, and at least one heating point on the sample; and a device for detecting outputs of the first and second contact pieces being response to temperature rise of contact points between the first and second contact pieces due to heating of the pulse-state electron beam with a prescribed frequency, and measuring an amplitude component of a temperature wave corresponding to the heating position of the heating point by the prescribed frequency. By determining a rate of the heat flow flowing into the contact points (T1 point (F point), T2 point (E point)), the heat flow direction of the sample can be determined.SELECTED DRAWING: Figure 6B

The invention discloses an SPS cyclic sintering and extrusion graphene reinforced titanium-based composite material integrated preparation method, which comprises the following steps: S1, SPS cyclic sintering: putting mixed powder into a graphite mold for cyclic sintering for 1-6 times, under the multi-field coupling effect, raising the temperature, changing the chemical potential of B atoms, directionally diffusing part of the B atoms to a Ti matrix, and performing SPS cyclic sintering; intragranular TiB size control and grain boundary TiC and GNPs morphology control and pinning are achieved. S2, SPS hot extrusion: putting the circularly sintered composite material into a mold, preserving heat at a set temperature, and then extruding by using a hydraulic device of SPS equipment, so as to control the distribution of a reinforced phase, further refine grains, improve the density and avoid heat loss during transfer in a traditional extrusion mode; and extrusion can be carried out without changing other conditions after heat preservation at the set temperature. The morphology and distribution of the reinforced phase can be effectively controlled, so that the performance of the composite material is improved.

An object of the present invention is to provide a biaxially stretched polyamide film which is superior in bending pinhole resistance and abrasion pinhole resistance, and can inhibit generation of foreign matter during film formation. A biaxially stretched polyamide film of the present invention includes at least two layers of A layer and B layer each formed of a resin composition including polyamide 6, wherein the A layer contains a flexing agent and the B layer is substantially free of any flexing agent, and the biaxially stretched polyamide film exhibits a loss elastic modulus E″ of 1.1×108 Pa or more at 1° C. in dynamic viscoelasticity measurement under conditions including a tensile mode, a distance between chucks of 20 mm, a frequency of 15 Hz, and a rate of raising temperature of 5° C. / min using a viscoelasticity analyzer.

A composite refrigeration line set comprising at least one of a suction and a return line comprising an inner plastic tube, a first adhesive layer positioned around the inner tube, an aluminium later

To make a carbide area ratio in a work uniform while suppressing the time and energy required for heating the work when the entire work is quenched.SOLUTION: In a heating process of inductively heating a ring-shaped work W made of steel in order to quench the entire work W, a temperature-raising step for continuously raising the temperature of the work W is composed of a primary temperature-raising step S1 for raising the temperature of the work W to the Curie temperature of steel, and a secondary temperature-raising step S3 for raising the temperature of the work W to a prescribed temperature equal to or higher than a hardening temperature. Between the two temperature-raising steps S1 and S3, a thermal diffusion step S2 is performed for causing thermal diffusion in the work W by lowering the output of heating coils 2A and 2B compared with that at the time of performing the primary temperature-raising step S1.SELECTED DRAWING: Figure 3

The utility model relates to the technical field of hydrogen conveying, in particular to a cavity composite pipe for conveying hydrogen, which sequentially comprises a PE-RT (polyethylene of raised temperature resistance) outer layer, an outer glass fiber layer, an aluminum strip layer, a PE cavity layer, an inner glass fiber layer, an aramid fiber layer and a PE inner layer from outside to inside, the multiple cavities are distributed in a circumferential mode with the axis of the composite pipe as the circle center, every two adjacent cavities are separated through a partition, and the multiple cavities are not communicated with one another. The composite pipe can resist high temperature and high pressure during hydrogen conveying, the hydrogen permeation speed in a pipeline is reduced, the hydrogen permeating into the pipeline can be prevented from being directly discharged into air, and the safety in the hydrogen conveying process is improved.

The invention relates to the technical field of PE-RT pipes, in particular to a hybrid material, a graphene modified heat-resistant PE-RT pipe and a preparation method of the graphene modified heat-resistant PE-RT pipe, and the PE-RT pipe comprises the following raw materials in parts by weight: 55-60 parts of PE-RT resin, 8-11 parts of glass beads, 4-7 parts of a silane coupling agent, 3-5 parts of PE wax, 2-4 parts of an antioxidant 1010 and 2-5 parts of calcium stearate. According to the PE-RT pipe, the PE-RT resin is adopted as a matrix and is matched with the glass beads, the silane coupling agent, the PE wax, the antioxidant 1010 and other raw materials, meanwhile, the graphene-based hybrid material agent and the graphene-based hybrid material agent are added to serve as a synergist, and the two materials are blended, synergistic and jointly synergistic, so that the impact resistance and the heat preservation performance of the obtained PE-RT pipe can be harmoniously improved, and the PE-RT pipe has the good heat preservation performance. And the product has remarkable weather resistance and thermal cycling resistance stability.

One aspect of the invention provides a composite refrigeration line set including at least one selected from the group consisting of: a suction line and a return line, characterized in that one or more of the suction line and the return line are a composite refrigeration line set tube include: an inner plastic tube; a first adhesive layer positioned about the inner plastic tube; an aluminum layer positioned about the first adhesive layer and coupled to the inner plastic tube via the first adhesive layer; a second adhesive layer positioned about the aluminum layer; and an outer plastic layer positioned about the aluminum layer coupled to the aluminum layer via the second adhesive layer. The inner plastic tube is polyethylene of raised temperature. The outer plastic tube is polyethylene of raised temperature. The aluminum layer comprises AL 3005-O.

The utility model relates to the technical field of semiconductor heating devices, and discloses a heating device capable of heating quickly, which comprises a box body, fixed columns are fixedly arranged at the front ends and the rear ends of the two sides between the inner bottom surface and the inner top surface of the box body, movable plates are arranged at the upper ends and the lower ends of the outer surfaces of the four fixed columns, and the movable plates are fixed on the box body. Two-way screws are rotationally embedded in the middle points of the two sides between the inner top face and the inner bottom face of the box body, a fixing plate is fixedly arranged at the middle point of the position between the inner walls of the two sides of the box body, and a material box is movably embedded in the front end face of the fixing plate. According to the utility model, after the mounting plates fixedly provided with the heating pipes are embedded in the two movable plates, the upper end and the lower end of a material placed in the material box can be heated, the two-way screw rod arranged in the box body can better drive the movable plates to move, and meanwhile, the movable plates and the fixed plate can be separated, so that the material box is convenient to use. Therefore, the material box can be drawn out, and the materials can be replaced.

The invention provides a heat treatment method for single crystal metal. The method comprises the following steps: 1) placing single crystal metal in a furnace body, and raising the temperature in the furnace to a first-stage target temperature at a first-stage heating rate in an inert or reducing atmosphere; and 2) maintaining the atmosphere in the step 1), and raising the temperature of the furnace body from the current first-stage target temperature to a second-stage target temperature at a second-stage heating rate. The second-stage heating rate is greater than the first-stage heating rate. According to the recrystallization prevention strategy provided by the invention, crystal reconstruction and crystal boundary evolution caused by internal stress accumulation are remarkably inhibited through a customized staged heat treatment process adaptive to single crystal metal, and good single crystal property and surface appearance of the metal are effectively maintained. Especially for single crystal metal subjected to cold processing such as cutting, forming, fine processing and the like, the method provides a heat treatment process compatible with the single crystal metal, and a technical foundation is laid for subsequent processes such as high-temperature deposition growth of a thin film and material compounding and the like.

The disclosed technology can be implemented to provide a method of determining thermal conductivity of a sample. The method includes controlling a heat source to raise a temperature of the heat source to an elevated temperature that is higher than a phase transition temperature of a phase change material, placing the sample between and in thermal contact with the phase change material and the heat source below the phase transition temperature to allow thermal conduction through the sample from the heat source to the phase change material, thereby raising an initial temperature of the phase change material to the phase transition temperature to cause the phase change material to transition from a first phase to a second phase, performing a measurement on at least one of the sample or the phase change material, and determining the thermal conductivity of the sample based on the measurement.

A multi-layered pipe including a first polyethylene layer comprising raised temperature (PE-RT) resistance forming a longitudinal axis of the pipe, an ultra-high-molecular-weight polyethylene (UHMWPE) layer disposed around the first PE-RT layer, a second PE-RT layer disposed around the UHMWPE layer, and, optionally, at least one bonding layer disposed between at least one of the respective first or second PE-RT layers and the UHMWPE layer. At least one of the layers comprises a nanoclay material for reducing gas transport through the layers.

The utility model relates to the technical field of composite material storage, and discloses a composite material drying and storing device which comprises a base, a storage cabinet is arranged at the top of the base, a drying box is arranged at the top of the storage cabinet, and a sealing door is arranged on the outer side of the storage cabinet. The temperature in the drying box is increased through the electric heating wire, hot air in the drying box is transmitted into the storage cabinet through the exhaust fan, meanwhile, the hot air in the drying box is exhausted into the spiral pipe through the exhaust pipe through the other exhaust fan, the motor drives the gear to rotate, the gear is meshed with the gear ring to drive the rotating shaft to rotate, and the drying box is heated. The rotating shaft drives the spiral pipe to rotate, hot air is evenly discharged into the storage cabinet, the temperature in all directions in the storage cabinet is balanced, air in the storage cabinet is kept dry, therefore, mixed materials in the storage cabinet can be kept dry, moisture in the storage cabinet can be absorbed through the drying agent in the shell, and the dryness of the mixed materials is improved.

An apparatus of a composite refrigeration line set that includes a suction line and return line characterized in that one or more of the suction line and the return line are a composite refrigeration line set tube. The set tube includes an inner plastic tube, a first adhesive layer external to the inner plastic tube, an aluminum layer circumferentially surrounding the first adhesive layer and coupled to the inner plastic tube via the first adhesive layer, a second adhesive layer external to the aluminum layer, and an outer plastic layer circumferentially surrounding the aluminum layer and coupled to the aluminum layer via the second adhesive layer. The inner plastic tube is a polyethylene of raised temperature and includes conductive additives. The outer plastic tube is polyethylene of raised temperature.

The utility model discloses a heating device for temperature rise of a rubberizing film, and relates to the technical field of rubberizing films, the heating device for temperature rise of the rubberizing film comprises a fixed shell, the inside of the fixed shell is fixedly connected with heating equipment, the inside of the fixed shell is fixedly connected with a net plate, the surface of the fixed shell is provided with a button switch, and the button switch is connected with a power supply. The button switch is electrically connected with the heating equipment, a fixing block is fixedly connected to the surface of the fixing shell, a through groove is formed in the surface of the fixing block, a mounting frame is rotatably connected to the interior of the fixing shell, and the film is mounted on the surface of the mounting frame. According to the adhesive tape heating device, the adhesive tape is heated, so that the adhesive tape can be ensured to have a certain temperature, the adhesive tape is ensured to have good adhesiveness during use, meanwhile, the adhesive tape heating device is arranged in the fixed shell, a worker can carry the adhesive tape conveniently, and the use effect of the device is further improved.