98results about How to "Guaranteed temperature stability" patented technology

The invention relates to the field of temperature control, in particular to an automatic control method and system for a constant-temperature test room. The method comprises the following steps: acquiring real-time indoor operation monitoring parameters and external environment multi-dimensional data of a constant-temperature test room; performing indoor operation state analysis on the real-time indoor operation monitoring parameters, and constructing a laboratory dynamic state space model; carrying out multi-time-point environment temperature fluctuation calculation on the external environment multi-dimensional data, and carrying out nonlinear correlation learning to generate indoor state-environment nonlinear correlation characteristics; carrying out dynamic temperature evolution simulation on the laboratory dynamic state space model based on the indoor state-environment nonlinear correlation characteristics, and carrying out dynamic temperature evolution prediction to obtain temperature prediction values of a plurality of regions; constant-temperature deviation compensation calculation is carried out on the temperature prediction values of the multiple areas, then intelligent temperature control compensation is carried out, and an intelligent temperature control strategy is constructed; according to the invention, efficient and accurate constant-temperature automatic control is realized.

The invention relates to the technical field of power cables, in particular to a bending-resistant medium-voltage power cable, which is characterized in that a plurality of cable cores are mounted in an outer sheath at equal angles in the circumferential direction, a plurality of supporting pads are uniformly mounted in the outer sheath at equal intervals, and a protective tube is mounted in the middle of the side end surface of each supporting pad; according to the invention, equal unloading of external bending stress and external impact pressure can be realized, and internal and external dual pressure relief can be realized, so that the stress borne by each part of the cable is more balanced, and the reliability of the cable is improved. The minimum bending radius of the cable can be dynamically regulated and controlled, comprehensive regulation and control of bending toughness and bending flexibility of the cable are achieved, the requirements of different use scenes are effectively considered, the application flexibility of the cable is improved, meanwhile, the effective utilization rate of load pressure in the cable can be improved, and the effective service life of the cable is prolonged.

The embodiment of the invention provides a heat management device and an energy storage cabinet. The heat management device is used for the energy storage cabinet and comprises a first loop unit, a second loop unit, a multi-way valve and a phase change heat storage unit. The first loop unit comprises a first heat exchange pipeline, and the first heat exchange pipeline is used for exchanging heat with an energy storage device of the energy storage cabinet; the second loop unit comprises a second heat exchange pipeline; the phase change heat storage unit comprises a first flow channel, a second flow channel and a phase change part, the first flow channel can selectively communicate with the first heat exchange pipeline through a multi-way valve, and the second flow channel directly communicates with the second heat exchange pipeline; the phase change part is in heat conduction contact with the first flow channel and the second flow channel. The heat management device is arranged, and the phase change part is in heat conduction contact with the flow channel, so that efficient heat exchange between the phase change material and the cooling liquid in the flow channel can be realized. When the temperature of the cooling liquid in the flow channel rises, the phase change material absorbs heat and generates phase change, and vice versa, so that the temperature fluctuation in the flow channel is balanced.

The invention belongs to the technical field of asphalt metering equipment, and particularly relates to a metering device for preventing rapid cooling of asphalt, the metering device comprises a workbench, and an outer cylinder, a weighing scale and a material conveying structure which are respectively mounted on the workbench, a weighing barrel is placed at the upper end of the weighing scale, and an inner cylinder is fixedly mounted on the inner bottom wall of the outer cylinder; a resistance wire is mounted on the inner wall of the outer barrel and used for heating asphalt in the inner barrel, and a stirring assembly is mounted in the outer barrel and used for uniformly heating the asphalt in the inner barrel; by means of the precisely designed stirring assembly, asphalt in the inner barrel can be heated more evenly. The stirring piece is driven by the rotating rod I to go deep into the asphalt for full stirring, so that the problem of non-uniform heat distribution is effectively avoided; the uniform heating mode not only improves the heating efficiency of the asphalt, but also remarkably reduces the negative influence on the later weighing accuracy caused by non-uniform heat, and ensures the accuracy and consistency of asphalt treatment.

The invention discloses a graphite crucible for carbonization of a lithium battery negative electrode material, and relates to the technical field of lithium battery negative electrode material carbonization equipment, the graphite crucible comprises a rack, a pot body fixedly arranged on the rack, and a gland slidably arranged on the rack along the vertical direction, the top end of the pot body is provided with an opening, and the gland is used for sealing the opening at the top end of the pot body; a central cylinder is fixedly arranged in the pot body, a first ventilation opening and a second ventilation opening are formed in the side wall of the central cylinder, the pot body is communicated with a ventilation pipeline, the ventilation pipeline is communicated with the first ventilation opening, an air inlet pipe penetrates through the gland, a first valve is arranged on the air inlet pipe, the ventilation pipeline is communicated with an exhaust pipe, and a second valve is arranged on the exhaust pipe. And a gas circulation module for promoting the inert gas to circulate in the pot body is arranged in the central cylinder. According to the invention, the temperature uniformity and the gas circulation in the carbonization process can be effectively improved, and the risk of caking of the negative electrode material due to local high temperature is reduced.

The utility model relates to battery pack heat preservation technical field, concretely is a kind of structure of improving the heat preservation performance of battery pack upper cover, including upper cover body, the inner surface of upper cover body is equipped with the honeycomb cavity of uniform distribution, the honeycomb cavity is filled with aerogel particles, the outside of honeycomb cavity is equipped with the heat insulation layer of integration with upper cover body, the heat insulation layer is inlaid with multiple heat-conducting fibre bundles;The outer surface of upper cover body is equipped with several micropore array, and the micropore array is filled with graphene coating.The utility model can significantly improve the heat preservation effect of battery pack under low temperature environment, simultaneously under high temperature condition, the excess heat generated by battery module is quickly exported, and heat accumulation is avoided.

The utility model discloses a deuterium gas treatment system for an optical fiber. The deuterium gas treatment system comprises a deuterium gas treatment box and heating equipment, a partition plate is arranged at the lower part of the deuterium gas treatment box and divides the interior of the deuterium gas treatment box into an upper cavity and a lower cavity; mixed gas of deuterium gas and nitrogen gas is stored in the upper cavity, and heating equipment is mounted in the lower cavity; a plurality of heat dissipation holes communicated with the upper cavity and the lower cavity are formed in the partition plate; the deuterium gas is stored in the upper cavity; the heating equipment is arranged in the lower cavity; the heating equipment comprises a heating pipe, a water inlet pipe and a water outlet pipe; the heating pipe is laid in the lower cavity, and cooling fins are arranged on the heating pipe in the axis direction at intervals. The deuterium gas treatment device has the beneficial effects that the deuterium gas is heated by utilizing the heating equipment, so that the temperature stability of a deuterium gas treatment space is ensured, the deuterium gas treatment space is not influenced by the environment, the deuterium gas treatment effect is effectively ensured, and the deuterium gas consumption can be reduced under the same treatment time; the heating pipe and the cooling fins are adopted for heating, and the heating mode can guarantee continuous and stable operation of deuterium gas treatment of the optical fiber.

This application relates to a multi-isothermal stamping die, belonging to the field of stamping die technology. The multi-isothermal stamping die includes a lower stamping die, an upper main die base, and side die bases. The lower stamping die is provided with a lower die base for placing forgings. The side die bases include a left die base and a right die base. The left die base includes a left sliding block and a left die body disposed on the left sliding block. The right die base includes a right sliding block and a right die body disposed on the right sliding block. Both the left and right die bodies are equipped with a first heating element for heating. The lower die base is provided with a second heating element. The left and right die bodies abut to form a product forming cavity. The left die base, right die base, and lower stamping die are all provided with heat insulation structures to reduce heat loss. This application has the effect of heating the product forming cavity, ensuring the temperature stability of the stamping area, and improving the forming effect.

This utility model provides a casting fixture for producing brake housings, relating to the field of casting technology. It includes a top plate, with support columns fixedly connected to the bottom and near the four corners of the top plate. A liquid storage tank is fixedly connected through and to the center of the top plate. An upper mold plate is fixedly connected to the bottom of the liquid storage tank. A solenoid valve is fixedly installed at the connection between the liquid storage tank and the upper mold plate. A connecting plate is fixedly connected between the two support columns near the bottom. A hydraulic cylinder is fixedly connected to the top of the connecting plate near the center. A lower mold plate is embedded in the bottom of the upper mold plate. Fixed plates are symmetrically fixedly connected to the surface of the lower mold plate. In this utility model, the casting fixture is equipped with an elastic buffer structure composed of vertical rods, limiting rods, a circular disc, and springs. Combined with power components such as hydraulic cylinders, it can quickly and smoothly push the brake housing out of the mold, significantly shortening the demolding time and improving production efficiency.

The present application relates to a kind of composite preparation methods for metal-based ceramic composite material, as follows: one, ceramic preform production: ceramic preform mould is made;After pretreatment, ceramic particles, binder, mixed powder are mixed, filled into mould, twice solidification treatment, and ceramic preform is prepared;Two, metal-based ceramic composite material composite preparation: ceramic preform is fixed in cavity, and metal sheet is placed in the both sides of ceramic preform or between two ceramic preforms;Temperature sensor probe is inserted into cavity;After closing, it is placed in electromagnetic induction coil, and heating is carried out;When metal sheet reaches set temperature, keep warm, when ceramic preform reaches required temperature, electromagnetic induction heating system is closed;Pouring metal liquid, cooling and solidification demoulding;Three, post-processing: quenching and tempering treatment are carried out.The present application solves the problem that ceramic preform and metal liquid temperature difference is too large during metal liquid casting, resulting in poor composite effect, low product yield and unsatisfactory use effect.

The application provides a combined bottom plate structure of a laser, which is a multi-layer plate integrated structure fixedly connected to the bottom of the inner cavity of the laser, comprising a support plate, a semiconductor refrigerator, a heat insulation pad, a base plate and a mounting plate; the bottom surface of the support plate is fixedly connected to the bottom of the inner cavity of the laser shell; the semiconductor refrigerator and the heat insulation pad form a first square body structure, the bottom surface of the first square body structure is connected to the top surface of the support plate; the mounting plate and the base plate form a second square body structure; the bottom surface of the second square body structure is connected to the top surface of the first square body structure, and the top surface of the second square body structure is an optical platform for bearing a plurality of optical components and absorbing heat. The application also provides a heat dissipation method for the combined bottom plate structure of the laser. The application solves the technical problem that the bottom plate structure of the existing laser cannot simultaneously meet the requirements of high-efficiency heat dissipation, accurate temperature control and stable structure due to the single material.

The present application relates to the technical field of auxiliary structure of cubic press, in particular to a temperature control device of cubic press, which is applied to cubic press, and the cubic press comprises six top hammers, each of which is provided with small and large pads, and a steel ring is detachably sleeved on the top hammer, the small and large pads and the top hammer; the temperature control device of cubic press comprises a cooling liquid pipe, each top hammer is provided with a cooling liquid pipe, both ends of the cooling liquid pipe pass through the small pad, and the cooling liquid pipe is detachably arranged on the steel ring, the cooling liquid pipe is configured to receive external cold liquid, thereby breaking through the heat transfer bottleneck of traditional indirect cooling of steel ring, so that the heat of the top hammer can be directly radiated through the cooling liquid pipe, while significantly reducing the interface thermal resistance and material thermal conductivity loss in the heat conduction path, the temperature stability of the superhard material synthesis process is ensured, and the synthesis efficiency and product quality are improved.

The invention discloses an anti-scouring tundish dry material, and relates to the technical field of tundish refractory materials, and the tundish dry material comprises the following raw material components by mass: 28-32% of 3-1mm fused magnesite, 10-20% of alumina powder, 10-20% of alumina powder, and the balance of alumina powder. The invention relates to an ultra-low thermal conductivity refractory brick which comprises the following components in percentage by weight: 22-30% of 1-0mm fused magnesia, 20-28% of 200-mesh fused magnesia, 3-4.5% of phenolic resin, 1-1.4% of rectorite powder, 0.2-0.3% of SiO2 aerogel powder and the balance of 5-3mm fused magnesia. According to the ultra-low thermal conductivity refractory brick, the special layered structure of the rectorite powder and the ultra-low thermal conductivity of the SiO2 aerogel powder are ingeniously utilized; through the synergistic effect of the two components, the tundish dry material successfully solves the problems of insufficient strength and poor thermal insulation performance on the basis of keeping the original good fire resistance, and the efficiency and economical efficiency of a continuous casting process are remarkably improved.

The invention relates to magnetic resonance imaging, in particular to a cooling unit, a cooling system and a gradient coil. The invention relates to a cooling unit which is a cooling water pipe which is of a U-shaped water pipe structure. The cooling system comprises a cooling unit and at least two C-shaped connectors, one end of the first C-shaped connector is connected with a water inlet, and a plurality of water inlet connectors are arranged on the first C-shaped connector; one end of the second C-shaped joint is connected with the water outlet, and a plurality of water outlet joints are arranged on the second C-shaped joint; the first C-shaped connector and the second C-shaped connector are connected in parallel through a plurality of cooling units, one end of each cooling unit is connected with a water inlet connector on the first C-shaped connector, and the other end of each cooling unit is connected with a water outlet connector on the second C-shaped connector. Compared with the prior art, the cooling unit, the cooling system and the gradient coil are provided, the heat conduction capacity of the cooling system is guaranteed, the water pipe is not provided with a connector in the gradient coil, and the risk of water leakage is reduced.

The invention discloses raw material mixing and stirring equipment for high borosilicate 4.0 glass production, and relates to the technical field of high borosilicate glass production. Comprising a barrel body, supporting legs, a driving motor, a stirring assembly, a fixing box and a heating ring, the barrel body is fixedly installed on the supporting legs, the stirring assembly is arranged in the barrel body, a discharging groove is formed in the bottom of the barrel body, the fixing box is fixedly installed on the barrel body, the driving motor is arranged in the fixing box and fixedly connected with the stirring assembly, and the heating ring is fixedly connected into the barrel body. The heating ring is composed of a plurality of thin sheets, the thin sheets are separated through high-temperature-resistant insulating materials, corrosion-resistant coatings are arranged on the inner side and the outer side of the heating ring, and a plurality of heat pipes are arranged in the heating ring and distributed in a spiral shape or an annular shape. The problems of insufficient temperature and poor mixing effect caused by incapability of heating raw materials are solved, uniform temperature distribution of the raw materials in the processing process is ensured, and the product quality is improved.

This utility model relates to the field of drinking water equipment technology, and discloses a water circuit board assembly and drinking water equipment. The water circuit board assembly includes: a lower water circuit board for installing the cooling component and the heating element, and connecting the water tank and the heating element through the lower water circuit board; a water tank water circuit board, integrated into and connected to the water tank, and installed and connected above the cooling component; the water tank water circuit board is connected to the heating element. The lower water circuit board and the water tank water circuit board provided by this utility model adopt integrated water circuit board module and modular design respectively, which not only improves the system sealing and stability of the drinking water equipment, but also simplifies the assembly process of the drinking water equipment and improves the production efficiency of the drinking water equipment. Furthermore, the modular design of the drinking water equipment makes maintenance and upgrades more convenient, and also solves the problems of odor, complex assembly, and low safety caused by messy pipelines in traditional drinking water equipment using silicone tubing.

The utility model provides a laser pumping drive circuit, and relates to the technical field of drive circuits. The output end of a voltage-controlled constant current source unit is connected with a pumping laser; the output end of the dual-mode current setting unit is connected with the reference input end of the voltage-controlled constant current source unit; the output end of the temperature control driving unit is connected with the thermoelectric refrigerating unit, and the feedback input end of the temperature control driving unit is used for receiving a temperature sensing signal; the analog input end of the multi-channel signal acquisition unit is respectively connected with a current sampling point of the voltage-controlled constant current source unit, the output end of the monitoring photodiode and a temperature sensing signal node; the positive power supply output end and the negative power supply output end of the power supply management unit are respectively connected with the power supply ends of the voltage-controlled constant current source unit and the multi-channel signal acquisition unit, and the enabling control end of the power supply management unit is connected with an external interface and is used for receiving a digital enabling signal and guaranteeing the temperature stability and reliability of the laser pumping drive circuit.

The invention discloses a safety cover plate lifting device for an ore storage bin and a using method, and relates to the technical field of ore storage bin equipment. The safety cover plate lifting device for the ore storage bin comprises a bearing platform arranged on an ore storage bin body, a bin cover body is arranged on the ore storage bin body, and a portable bin door is rotationally connected to the bin cover body. A first lifting unit is arranged on the bearing platform and comprises a guide rail frame and an adjusting table, and a second lifting unit is arranged on the adjusting table. The safety cover plate lifting device for the ore storage bin is improved on the basis of a traditional lifting device, so that the lifting device can control the bin cover body to ascend and descend and can control the portable bin door on the bin cover body to ascend, descend, open and close, and therefore when a small amount of materials are loaded and unloaded, the bin door is small in caliber, and the temperature influence on the interior of the ore storage bin body is small; the temperature stability in the ore storage bin body is guaranteed, and caking and deterioration of materials are avoided.

The microwave-assisted garbage treatment device comprises a pyrolyzing furnace body, the top of the pyrolyzing furnace body is provided with a furnace cover and an air outlet pipe, one end of the furnace cover is rotationally connected with the pyrolyzing furnace body through a first rotating shaft, and the outer side of the furnace cover is connected with the pyrolyzing furnace body through a first telescopic rod; a garbage transfer area located in the pyrolyzing furnace body is arranged on the inner side of the furnace cover, a push plate is arranged at one end of the garbage transfer area, a second telescopic rod is connected to the outer side of the push plate, a sealing plate rotationally connected with the pyrolyzing furnace body is arranged at the other end of the garbage transfer area, and a first limiting plate rotationally connected to the top of the pyrolyzing furnace body is arranged above the sealing plate; a limiting surface is formed at one end of the first limiting plate, the other end of the first limiting plate extends into the pyrolyzing furnace body, a second limiting plate matched with the first limiting plate is arranged in the middle of the first rotating shaft, and an intercepting part matched with the limiting surface is arranged on the second limiting plate. According to the pyrolysis furnace, the garbage treatment efficiency can be improved, and overflow of waste gas in the pyrolysis furnace is reduced.

The utility model relates to modified resin production technical field, and disclose a kind of batching device for modified resin production, including base, the right side of base top is fixedly connected with first support plate, the left side of base top is fixedly connected with second support plate, the left side of second support plate is fixedly connected with control panel, the right side of first support plate is fixedly connected with protection box, the inside of first support plate is provided with stirring mechanism, the top of second support plate is provided with feeding mechanism, the stirring mechanism includes first servo motor, the right side of first servo motor is fixedly connected in protection box, when using, when needing to carry out batching work to modified resin, second servo motor drives rotating shaft, cleaning frame and stirring shaft synchronous operation, stirring shaft can be fully stirred to raw material, and cleaning frame, which is in triangle and contacts with the inside of stirring tank, can scrape off the raw material remaining in the inner wall of stirring tank during rotating process.

This application discloses a heat exchange plate, a heat exchange device, a power module, and a vehicle. The heat exchange plate includes a heat exchange base plate and multiple pin fins. The pin fins are connected to the heat exchange base plate and protrude at least along a first direction. In a cross-section perpendicular to the first direction, the pin fins have a raindrop-shaped structure. The multiple pin fins are arranged in multiple rows, with each row including multiple pin fins. The multiple pin fins in each row are spaced apart along a second direction. The multiple rows are spaced apart along a third direction. The small end of the raindrop-shaped structure is bent relative to the large end along the third direction. The bending direction of the small end of the raindrop-shaped structure in at least one row is opposite to the bending direction of the small end of the raindrop-shaped structure in the adjacent row. According to the heat exchange plate of this application, by bending the small end relative to the large end along the third direction and providing a raindrop-shaped structure with the small end bending in the opposite direction, the medium can better form eddies, thereby improving the heat exchange efficiency between the medium and the pin fins.

The invention discloses a ground air source device capable of normally working at low temperature for airplane drainage, and relates to the technical field of ground air source devices for airplanes, the ground air source device comprises a mounting box body, and an inner cavity of the mounting box body is divided into a first mounting cavity and a second mounting cavity; an air source mechanism; the air source mechanism comprises a machine body, a main air inlet heating pipe, an auxiliary air inlet heating pipe, a valve mechanism and an air inlet pipe. The other end of the air inlet pipe is communicated with the main air inlet heating pipe and the auxiliary air inlet heating pipe; the valve mechanism is installed on the auxiliary air inlet heating pipe. A heating unit; the heating part is arranged in the first mounting cavity and is connected with the main air inlet heating pipe and the auxiliary air inlet heating pipe; the temperature self-adjusting mechanism is arranged in the second mounting cavity and is connected with the air inlet pipe so as to detect the temperature of the air inlet pipe; the temperature self-adjusting mechanism is in transmission connection with the valve mechanism. The working temperature of the gas source device can be lowered in the low-temperature environment, so that the normal working state of the ground gas source device is guaranteed, and the service life of the ground gas source device is prolonged.

The utility model discloses an ultra-large fluidized bed type reaction kettle. The ultra-large fluidized bed type reaction kettle comprises a reaction kettle main body and two stiffening plate groups, the reaction kettle main body comprises a cylindrical base body, a top cover covering the top end of the base body, and a base connected with the base body; a filter is arranged in the base; the diameter of the base body is 140-155 m, a reaction cavity is formed in the reaction kettle main body, a water inlet, a feed port and an acid inlet are formed in the top of the reaction kettle main body, an acid discharge port and a sand discharge port are formed in the bottom of the reaction kettle main body, and the filter is arranged above the acid discharge port, communicated with the reaction cavity and used for filtering a pickling solution; the two stiffening plate sets are arranged corresponding to the top and the middle of the base body respectively. Each stiffening plate is a steel plate with the thickness ranging from 11.5 mm to 12.5 mm, in the circumferential direction of the base body, the distance between every two adjacent stiffening plates in the same stiffening plate set ranges from 0.45 m to 0.55 m, and the number of the stiffening plates in the same stiffening plate set ranges from 18 to 22. Through the arrangement of the stiffening plate group matched with the base body, the structural strength of the ultra-large fluidization type reaction kettle can be improved, and the production safety is further improved.

The invention relates to the field of cold-chain logistics packaging, in particular to a fresh-keeping foam box for cold-chain turnover and a preparation method of the fresh-keeping foam box, and aims at solving the problems that an existing fresh-keeping foam box is limited in heat insulation performance and poor in antibacterial effect. According to the preparation method, polystyrene is used as a main raw material, then heat-insulating antibacterial particles are added into the polystyrene, the heat-insulating performance of the fresh-keeping foam box can be remarkably improved, the heat-insulating antibacterial particles have good adsorption performance and can adsorb moisture and peculiar smells in the foam box, meanwhile, the heat-insulating antibacterial particles have antibacterial and fresh-keeping effects, and the heat-insulating performance of the fresh-keeping foam box is improved. Growth of bacteria and mould can be inhibited, deterioration of articles is prevented, and the shelf life of the articles is prolonged; by using the fresh-keeping foam box, the temperature stability, sanitation and safety of goods in the transportation process are ensured, and the risk of cold chain breakage and the possibility of microbial contamination are reduced, so that the safety and reliability of cold-chain logistics are greatly improved, the food safety is ensured, and the requirements of modern cold-chain transportation are met.

The utility model discloses a plate drying mechanism, including support subassembly, constant temperature subassembly and preheating subassembly, the constant temperature subassembly is vertically installed on the support subassembly, the constant temperature subassembly is connected with the support subassembly and is used for the constant temperature effect of the plate, the preheating subassembly is vertically installed on the constant temperature subassembly, and the preheating subassembly is used for the constant temperature effect of the plate. A preheating pipe is arranged in the preheating assembly, the preheating pipe is vertically installed on the constant-temperature assembly, the preheating pipe is connected with the constant-temperature assembly and used for heating the interior of the constant-temperature assembly, through the arrangement of the constant-temperature assembly, the constant-temperature effect can be achieved on plates, the temperature stability of the plates in the drying process is ensured, and the drying efficiency is improved. The phenomenon of non-uniform drying caused by temperature change is effectively prevented, and the drying quality of the plate is improved.

The utility model discloses a waveguide antenna automation test device comprising a cabinet body, a refrigeration assembly arranged on the cabinet body, and a test device arranged in the cabinet body. A cabinet door is arranged on the cabinet body, a transparent observation window is arranged on the cabinet door, a PLC is arranged below the transparent observation window, and a display screen is arranged on the PLC; the refrigeration assembly comprises refrigeration pipes arranged on the two sides in the cabinet body, refrigeration liquid arranged in the refrigeration pipes, and a liquid inlet pipe and a liquid outlet pipe which are arranged at the two ends of the refrigeration pipes. The testing device comprises a testing assembly, a horizontal moving assembly arranged below the testing assembly and a vertical moving assembly arranged above the testing assembly. Through the combination of the refrigeration assembly and the PLC, the refrigeration assembly circulates in the refrigeration pipe through the refrigeration liquid, a stable low-temperature environment is provided for the interior of the cabinet body, the stability of the temperature in the test process is ensured, and the accuracy of the test result is improved.

The invention discloses a false scalding prevention system for cigarette cartons, and relates to the technical field of cigarette carton production. According to the technical key points, the device comprises a bottom plate, an air groove is formed in the bottom plate, a heating mechanism is arranged at the bottom of the bottom plate, an ironing plate mechanism is arranged at the bottom of the heating mechanism, the heating mechanism comprises a connecting screw rod, the lower end of the connecting screw rod is in threaded connection with a heat conduction plate, and a heating plate is fixedly installed in the center of an inner cavity of the heat conduction plate; temperature sensors are movably mounted at the left and right ends of the inner cavity of the heat conducting plate; and temperature sensor fixing screws are arranged on the front surfaces of the temperature sensors. According to the technology, the temperature sensors are used for monitoring the temperatures of different positions of the heat conduction plate, data are fed back to the control system, the real-time vehicle speed and the preset temperature value are combined, it is ensured that the flexible ironing plate is maintained in the optimal working temperature interval, and the accuracy and stability of temperature control are improved; the problem of false scalding caused by inaccurate temperature control and uneven heating time of a traditional beautifying device is solved.

The utility model discloses a two-sided weaving device for acrylic thermal fabric, and relates to the technical field of weaving devices.The two-sided weaving device for acrylic thermal fabric comprises a circular knitting machine, a weaving rotary table is installed in the middle of the circular knitting machine, a triangular area is installed on the outer side of the weaving rotary table, and a cooling assembly is arranged on the outer side of the triangular area; a fixing device is installed on the surface of the outer side of the cooling assembly, the cooling assembly comprises an annular pipe, the annular pipe is connected with the small air conditioner, the surface of the inner wall of the annular pipe communicates with a communicating frame, and a fan used for diffusing cold air is installed on one side of the communicating frame; the fixing device comprises a fixing bottom plate. The temperature stability of the triangular area in the working process is guaranteed through the cooling assembly, the problem of inaccurate knitting needle movement caused by thermal deformation is solved, and therefore the knitting quality of acrylic thermal fabric is improved.

The invention relates to a preparation method of a retaining ring composite electroslag ingot, belongs to the technical field of electroslag remelting smelting, and solves the problems that in the prior art, a retaining ring forge piece has forging cracks and is poor in surface quality, and an existing composite steel ingot has component difference and is complex in preparation process. According to the preparation method of the retaining ring composite electroslag ingot, the bottom, the main body part and the top of the composite electroslag ingot are made of different materials, and the preparation method comprises the following steps that 1, electrodes of the main body part of the composite electroslag ingot are prepared; step 2, preparing an electrode at the end part of the composite electroslag ingot; step 3, preparation before electroslag remelting of the composite electroslag ingot; 4, sequentially completing remelting of the bottom, the main body part and the top of the composite electroslag ingot in an electrode replacement mode; and 5, cooling solidification and demolding are conducted, specifically, after the steel ingot obtained after smelting is completed is subjected to mold cooling for 5-6 hours in a crystallizer, demolding is conducted, and the composite electroslag ingot with the end part and the main body part made of dissimilar materials is obtained. And the preparation of the retaining ring composite electroslag ingot with high metallurgical quality is realized.

The utility model discloses a cooling device for processing a CPVC electric power pipe, and relates to the technical field of electric power pipe cooling. The water cooling device comprises two first supporting frames, and a conveying mechanism and a water cooling mechanism are arranged on the two first supporting frames. The conveying mechanism comprises two first rotating shafts rotationally connected between the two first supporting frames, the two first rotating shafts are arranged on the left sides and the right sides of the two first supporting frames, and the front ends and the rear ends of the two first rotating shafts rotationally penetrate through the side walls of the two first supporting frames correspondingly and extend to the outside. Through mutual cooperation of the novel conveying mechanism and the water cooling plate, the problems that due to the excellent performance of CPVC electric power pipes, the CPVC electric power pipes are used more and more widely, the CPVC electric power pipes need to be subjected to thermal forming hardening during production, the CPVC electric power pipes need to be placed on a conveying belt and then conveyed to the position below a cooling device through the conveying belt to be cooled, and the production efficiency is high are solved. However, when the conveying belt conveys the CPVC electric power pipe, the CPVC electric power pipe is prone to deviation or shaking, and therefore conveying is not stable.