61 results about "Raised temperature" patented technology

The invention discloses a preparation method of a composite pipe for vibration and noise reduction, and relates to the technical field of metal material preparation, in order to solve the problems that an existing prepared composite pipe is poor in pressure resistance and vibration reduction and sound absorption capacities, the preparation method comprises the steps that an inner layer metal pipe, an outer layer metal pipe and foaming powder are integrally extruded and formed, and a pipe blank composite pipe blank is obtained; the pipe blank composite pipe blank is heated, rolling forming is conducted on the pipe blank composite pipe blank, the temperature of a contact interface between the structures of the pipe blank composite pipe blank is increased to a preset temperature, a metallurgical bonding target bonding interface is formed on the contact interface, and a target composite pipe blank is obtained; and the target composite pipe blank is placed in a heating furnace, the middle layer of the target composite pipe blank is foamed to form a foam metal layer, and the foam metal sandwich composite pipe is obtained. The preparation method provided by the invention is used for improving the compressive strength and the vibration reduction and sound absorption performance of the foam metal sandwich composite pipe.

A disclosed stirring and mixing device for composite material production comprises a stirring tank body, the outer wall of the top of the stirring tank body is provided with a sealing cover plate, the inner wall of the bottom of the stirring tank body is communicated with a discharging pipe, the bottom of the discharging pipe is fixedly provided with an electric control ball valve through a bolt, and the outer wall of the stirring tank body is sleeved with a cylindrical cooling shell; supporting legs distributed at equal intervals are welded to the outer wall of the bottom of the cylindrical cooling shell, the inner wall of one side of the cylindrical cooling shell communicates with a water inlet pipe, and the bottom of the inner wall of the other side of the cylindrical cooling shell communicates with a water drainage pipe. In the process of mixing and stirring silicon carbide, in order to reduce an interface reaction, a continuously flowing cooling medium is matched with mutual contact of a cylindrical cooling shell, a rotating sleeve and a stirring shaft, so that efficient cooling of the stirring shaft and the rotating sleeve can be realized, and temperature rise caused by heat generated by friction in the stirring process is inhibited; therefore, the interface reaction is inhibited.

The invention provides an intelligent window with spectrum regulation and control and phase change energy storage functions and a preparation method of the intelligent window, and belongs to the field of door and window equipment. The intelligent window comprises a first high-light-transmittance film, temperature-sensitive gel, a second high-light-transmittance film and a phase change composite material which are sequentially stacked. According to the invention, the temperature-sensitive gel plays a role in spectrum adjustment, before and after phase change, the temperature-sensitive gel is converted from transparent to opaque, the sunlight transmittance is significantly reduced, the light transmittance is significantly reduced when the temperature rises to be close to the phase change temperature of the temperature-sensitive gel, and the entry of solar heat is reduced; the phase-change composite material can absorb heat on the surface of the window, increase thermal inertia of the window, slow down temperature rise of the surface of the window, reduce indoor thermal radiation and convection of the window, release heat at night, delay temperature drop of the window, change from opaque to transparent before and after phase change, and remarkably improve sunlight transmittance. The temperature is continuously reduced at night, high haze is presented, and the privacy protection effect is achieved.

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.

The invention relates to the field of temperature regulation, in particular to a linear temperature control system. The device contains a working medium, and comprises a refrigeration module used for reducing the temperature of the working medium; the heating module is used for raising the temperature of the working medium; the temperature control module is used for controlling the heating capacity of the heating module and the refrigerating capacity of the refrigerating module to change simultaneously; in the heating process, the output of the refrigeration module is determined according to the output of the heating module; in the cooling process, the output of the heating module is determined according to the output of the refrigerating module; the temperature of the working medium linearly changes in the heating process and the cooling process; and the temperature monitoring module is used for monitoring the temperature of different areas of the system. By controlling the heating capacity and the refrigerating capacity absorbed by the working medium, the temperature change process of the working medium can be accurately controlled, so that the working medium is linearly increased or decreased, and excessive fluctuation in the temperature change process is avoided.

A plastic pipe 52 for use in plumbing and for being bent manually through 90°, comprises: a polyethylene layer (12, Fig 1) comprising raised temperature resistance polyethylene (PE-RT) forming a longi

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.

To quickly raise temperature in a room installed with a firewood stove, and make firewood materials last long.SOLUTION: A heat storage unit 10 disposed in a combustion chamber 51 of a firewood stove 50 comprises: a heat storage plate 11 configured to cover firewood materials 90 from above; a support part 12 for supporting the heat storage plate 11 in a state of separating from an inner wall 53 of the combustion chamber 51; and an open front face portion 13.SELECTED DRAWING: Figure 4

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.

To provide a cargo tank reducing time for raising temperature in a tank shell.SOLUTION: A cargo tank 1 includes: a tank body 11 for storing two types of liquefied gas with different temperatures to be managed by replacing them; a piping 12 provided on a surface of the tank body 11 and through which heat medium flows to change the temperature inside the tank 11; an insulation material 13 provided on the surface of the tank body 11 so as to cover the piping 12; and a cover 14 provided on the surface of the tank body 11 so as to cover the piping 12 and the insulation material 13.SELECTED DRAWING: Figure 1

The invention relates to the technical field of high-temperature instrument testing and material performance prediction, in particular to a method for calibrating softening model parameters of a material at a high temperature, which comprises the following steps: performing finite element analogue simulation on a hypothetical material to obtain simulated indentation responses under different hypothetical material parameters, and fitting the obtained indentation response data; performing nanoindentation test on different areas after welding at high temperature to obtain a high-temperature nanoindentation test indentation response curve; and solving the obtained nanoindentation response curve of the tested material at the high temperature according to the fitting parameters to finally obtain constitutive parameters. According to the method, high-temperature nanoindentation inversion is used for calibrating the softening model parameters of the material at the high temperature, prediction of a stress-strain curve is provided for a non-uniform structure at the high temperature, damage factors are introduced on the basis of a Ludwick constitutive model, and the high-temperature softening model parameters of the material at the high temperature are obtained. The problem that after the temperature rises, the stress value is reduced along with the increase of the strain value, and the model cannot simulate and predict is solved.

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.

According to the lighting device, at least part of a heat dissipation assembly is arranged in a first containing space of a shell, an air inlet allowing airflow to enter the first containing space and an air outlet allowing the airflow to flow out of the first containing space through an airflow channel are formed in the shell, and the airflow channel is arranged in the vertical direction; at least part of the air outlet is arranged above the airflow channel, and air with high temperature rises, so that the air with high temperature can be discharged from the air outlet above the airflow channel, negative pressure is formed in the first accommodating space, and cold air is sucked from the air inlet for supplementation, so that circulating ventilation in the first accommodating space is realized, and the heat dissipation effect is achieved; and the heat dissipation efficiency is high.

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.

To provide a distillation apparatus that is improved in energy-saving efficiency, by effectively utilizing heat that cooling water for cooling an overhead vapor has and suppressing scale from being generated in a distillation column.SOLUTION: A distillation apparatus is provided with: a first distillation column 1; an evaporator that heats soft water to generate vapor to be blown into the first distillation column; a first capacitor 11 that cools first overhead vapor to separate the vapor into first condensed water and first vapor; a heat pump HP1 which recovers heat from heated cooling water for the first capacitor and increases a level of the temperature of the recovered heat by electric power to heat the soft water; a second distillation column 2 that brings the first vapor in gas-liquid contact with second condensed liquid to distillate the vapor; a second capacitor 22 that cools and condenses second overhead vapor taken out from the second distillation column to recover the second condensed liquid; and a heat pump HP2 that recovers heat from heated second circulating / cooling water for the second capacitor and increases a level of the temperature of the recovered heat by electric power to heat the soft water.SELECTED DRAWING: Figure 1

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