33results about How to "Change cooling rate" patented technology

The invention relates to a cast iron horizontal continuous casting double-water jacket type crystallizer, which comprises a double-water jacket type crystallizer steel sleeve and a high-purity graphite sleeve, wherein the high-purity graphite sleeve is embedded in the double-water jacket type crystallizer steel sleeve, the double-water jacket type crystallizer steel sleeve comprises a crystallizer steel sleeve inner sleeve and a crystallizer steel sleeve outer sleeve, the crystallizer steel sleeve outer sleeve is arranged at the exterior of the crystallizer steel sleeve outer sleeve, the crystallizer steel sleeve inner sleeve is provided with a spiral water passage with a trapezoidal cross section, a separating plate is arranged in the spiral water passage with the trapezoidal cross section, and is used for separating the spiral water passage with the trapezoidal cross section into a spiral water passage with a trapezoidal cross section I and a spiral water passage with a trapezoidal cross section II, the crystallizer steel sleeve outer sleeve is respectively welded with a water inlet pipe of a main sleeve A, a water outlet pipe of the main sleeve A, a water inlet pipe of an auxiliary sleeve A and a water outlet pipe of the auxiliary sleeve B, the water inlet pipe of the main sleeve A and the water outlet pipe of the main sleeve A are respectively communicated with the spiral water passage with the trapezoidal cross section I to form the main sleeve A, and the water inlet pipe of the auxiliary sleeve B and the water outlet pipe of the auxiliary sleeve B are respectively communicated with the spiral water passage with the trapezoidal cross section II to form the auxiliary sleeve B. The cast iron horizontal continuous casting double-water jacket type crystallizer has the advantages that the process advantages of horizontal continuous casting using separate control of the two water jackets are fully realized, the leakage of furnaces is avoided, the drawing speed is improved, and the cost is reduced.

Provided is a cooling device variable of a cooling power and capable of decreasing the cooling power in a high temperature zone particularly without decreasing the cooling power in the low temperature zone affecting a cooling time, and to provide an apparatus for strip-casting a rare earth metal magnet alloy, which is provided with the cooling device and a method therefor. In this cooling device, the cooling power is changed and controlled by using a triple-tube system cooling tube unit constituted of an outer tube, a middle tube and an inner tube, and allowing a cooling medium to flow through a passage constituted of the inner tube and the middle tube and exhausting gas under vacuum or introducing helium for promoting the cooling through the annular gap part between the outer tube and the middle tube.

The invention discloses a movable hot rolling thermal insulation heat treatment device. The movable hot rolling thermal insulation heat treatment device comprises a base plate, a steel coil fixed basearranged in the center on the base plate, a tray being an annular structure and horizontally sleeving the middle part of the steel coil fixed base, a thermal insulation cover opened at the lower endand covering the tray and with a larger inner cavity volume than a steel coil, an electric heating device arranged on the inner side wall of the thermal insulation cover, a temperature sensor arrangedin the thermal insulation cover, and an information acquiring control module electrically connected with the electric heating device and the temperature sensor. The movable hot rolling thermal insulation heat treatment device can use self heat of the steel coil for uniform-heating and slow-cooling heat treatment process on the steel coil to achieve the purposes of high efficiency, energy conservation and improvement of the yield.

Provided are a mixed refrigeration system and a quick freezing method thereof. The mixed refrigeration system mainly comprises a freezing chamber (16), a contact type cascade heat exchanger (21), a contact type quick freezing system and a carbon dioxide quick freezing circulating system, wherein a tray is arranged in the freezing chamber (16), a contact type cascade heat exchanger (21) is arranged below the tray, the contact type cascade heat exchanger (21) is formed by overlapping an evaporator of a contact type quick-freezing system and a condenser of a carbon dioxide quick-freezing circulating system and serves as a tray support, and the tray is placed on the support. According to the invention, objects to be frozen in different temperature zones are frozen, so that the cooling rate of the objects to be frozen in the cooling zone and the crystallization temperature zone is changed, and the quality of the objects to be frozen is better preserved. The contact type quick-freezing system and the carbon dioxide spraying type quick-freezing system are overlapped, the condensation pressure of carbon dioxide is reduced, and the requirement for high pressure resistance of condensation equipment is lowered.

The invention discloses a medical speed-regulating cooling device. The medical speed-regulating cooling device comprises an upper shell, a lower shell, a temperature adjusting device, a temperature-moisture probe, a temperature-moisture display panel and a made-to-order energy-storing material, wherein a first shell sealing cavity, a first refrigerating pipe cavity, a first made-to-order energy storing material cavity and a second made-to-order energy storing cavity are formed inside the upper shell; the lower shell is connected with the upper shell through a metal rod; a plurality of second refrigerating pipe cavities, second shell sealing cavities and third made-to-order energy storing materials are arranged inside the lower shell; the second refrigerating pipe cavities are used for holding refrigerating pipes; phase-change materials are also placed in the second refrigerating pipe cavities; the temperature adjusting device comprises four made-to-order energy storing rods; the moisture-temperature probe is arranged on an outer side of one of the second refrigerating pipe cavities, and is used for collecting temperature information through a temperature probe and collecting moisture information through a moisture probe; the temperature-moisture display panel is arranged on a front surface of the upper shell, and is used for displaying the moisture information and the temperature information; the made-to-order energy storing material comprises a first made-to-order energy storing material, a second made-to-order energy storing material and a third made-to-order energy storing material, and is used for changing the cooling rate.

The invention provides a two-coating and one-baking novel energy-saving powder coating capable of replacing baking varnish. A processing method of the powder coating comprises the following steps: 1,preparing an outer layer coating: adding 35-55% of film-forming resin, ultrafine powdery graphite, a curing agent, 10-30% of a filler and 1-5% of assistants into a container, performing sufficient mixing, carrying out melting high-pressure extrusion after the mixing is finished, tabletting the extruded raw materials until the pressed tablets are uniform in size, crushing the tablets by using a crusher, and grinding the obtained powder after the crushing is finished; and 2, preparing an inner layer coating: adding 35-55% of the film-forming resin, the ultrafine powdery graphite, the curing agent, the pigment, nano-copper powder, 10-30% of the filler and 1-5% of the assistants into the container, performing sufficient mixing, carrying out melt high-pressure extrusion after the mixing is finished, tabletting the extruded raw materials until the pressed tablets are uniform in size, crushing the tablets by using the crusher, and grinding the powder after the crushing is finished. The two-coating and one-baking novel energy-saving powder coating has the advantages of increase of the construction speed, and reduction of environmental pollution.

The invention relates to a hydraulic system and method for accurately controlling oil temperature. The problems that an existing temperature control system is poor in temperature control precision, large in power loss and the like are solved. The system comprises a plunger pump, a plunger motor, an air supply device, a temperature bulb, a temperature control valve, a throttler, a first proportional valve and a hydraulic cylinder. The temperature bulb senses the oil temperature in the oil tank in real time and controls the opening degree of a cone valve in the temperature control valve, so that the flow passing through the throttler is changed, the pressure difference between the left side and the right side of the first proportional valve is changed, the working position of the first proportional valve and the opening degree of a variable valve port are changed, and the flow entering a hydraulic cylinder control cavity is changed; therefore, the angle of the swash plate of the plunger pump is changed, and the output flow of the plunger pump is further changed; the output flow of the plunger pump is changed, so that the rotating speeds of the plunger motor and the air supply device are changed, and the cooling speed of oil in the oil tank is changed. The whole control process is full-automatic control, the oil temperature can be adjusted in real time, and it is always guaranteed that the oil temperature in the oil tank is within the required temperature range.

The invention belongs to the field of immiscible alloy particles, and particularly discloses a multi-layer shell-core structure CoxCuyPbz alloy particle and a preparation method thereof. According to the method, a solidification forming device is utilized, and the hollow CoxCuyPbz alloy particle is prepared through the reasonably-designed alloy composition proportion, the pressure of two vacuum chambers and the roller surface linear speed of a Cu roller. The prepared shell-core alloy particle is high in sphericity and smooth in surface; no breaking or hole appear in a shell-core layer; only a solidification reaction happens inside; a precipitated phase is simple; the operation process is simple; and cost is low.

The invention discloses a novel medical speed regulation and temperature reduction device with a communication function. The medical speed regulation and temperature reduction device comprises an upper casing, a lower casing, a temperature regulating device, temperature and humidity probes, a temperature and humidity display panel, a WIFI (Wireless Fidelity) generator and a purpose made energy storage material, wherein a first casing sealing cavity, a first frozen storage pipe cavity, a first purpose made energy storage material cavity and a second purpose made energy storage material cavity are arranged inside the upper casing; the lower casing is connected with the upper casing through a metal rod; a plurality of second frozen storage pipe cavities, a second casing sealing cavity and a third purpose made energy storage material cavity are arranged inside the lower casing; the second frozen storage pipe cavities are used for storing frozen storage pipes; phase change materials are also stored in the second frozen storage pipe cavities; the temperature regulating device comprises four purpose made energy storage rods; the temperature and humidity probes are arranged at the outer side of one of the second frozen storage cavities; the temperature information is collected through the temperature probe; the humidity information is collected through a humidity probe; the temperature and humidity display panel is arranged on the front surface of the upper casing and is used for displaying the humidity information and the temperature information; the WIFI generator is used for sending temperature information; the purpose made energy storage material comprises a first purpose made energy storage material, a second purpose made energy storage material and a third purpose made energy storage material and is used for changing the temperature reduction speed.

The invention discloses an aluminum profile cooling process in the technical field of aluminum profile cooling. A pipe frame, a motor and a water accumulation tank are included. A plurality of long round holes at equal intervals are formed in the periphery of the pipe frame, and the transverse long round holes and the vertical long round holes are formed in a staggered manner. The motor is fixedlyconnected to one end of a drive shaft, and the drive shaft is rotationally connected to the outer wall of the pipe frame through a load plate. A cooling mechanism, a speed change mechanism, a transmission mechanism and a high-pressure mechanism are included. The cooling mechanism is in sliding connection to the inner wall of the pipe frame through a sliding roller and the long round holes. The speed change mechanism is fixedly connected to the inner wall of the water accumulation tank. The transmission mechanism is fixed to the outer wall of the pipe frame. The high-pressure mechanism is fixed to the outer wall of the water accumulation tank. Aluminum profiles are formed in an extrusion manner, the aluminum profiles output from an extruder need to be cooled due to the high temperature, next-machining or treatment is facilitated, and the problems that under the common air cooling condition, the heat exchange coefficients of all parts of the profiles being in contact with air are equal,and due to different wall thicknesses or shapes, the heat dissipation speeds of all the parts are different are effectively solved.

A method of monitoring an additive manufacturing process according to at least one embodiment of the present disclosure includes the steps of acquiring information on a temperature of a region upstream of a melt pool in a scanning direction of an energy beam, the melt pool being formed by irradiating a raw material with the energy beam, acquiring a parameter indicating a cooling rate of the region based on the information on the temperature, and determining a formation status based on the parameter.

The invention discloses a strip cooling device. The strip cooling device comprises a plurality of stand plates arranged between a top plate and a bottom plate, the stand plates are parallel, and clearances exist between the stand plates. Through holes are formed in each stand plate, the shape of the sections of the through holes is matched with the shape of the section of a strip, and the throughholes cooperate with one another to form a strip conveying channel. According to the strip cooling device, the problem that when a composite pipe strip is cooled, the composite pipe strip is prone tobeing influenced by gravity or other external environments, and consequently a cavity in the strip collapses, and the appearances of the strip deforms can be solved.