68results about How to "Easy temperature control" 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 embodiment of the utility model provides a cold storage cooling system of an energy storage power station, and belongs to the field of liquid cooling systems. The cold storage cooling system of the energy storage power station comprises a refrigerating system and a cooling system, the refrigerating system comprises a screw type cooling-water machine, a plate heat exchanger and a cross-flow cooling tower, the screw type cooling-water machine is connected with the plate heat exchanger in series and communicated with the cross-flow cooling tower through a first pipeline, the plate heat exchanger is communicated with the cross-flow cooling tower through a second pipeline, and the refrigerating system prepares cooling water through electricity price in the low ebb period; the cold storage system comprises a cold storage tank, a water inlet of the cold storage tank is communicated with the screw type water chiller through a third pipeline and is communicated with the plate heat exchanger through a fourth pipeline, a water outlet of the cold storage tank is communicated with the energy storage battery cabin, and the cold storage tank is used for storing cooling water prepared by the refrigerating system and releasing cold when the energy storage battery cabin is charged and discharged. According to the refrigerating system, cooling water is prepared through flexible application of valley electricity, the system operation cost is reduced, the cooling water is stored in the cold storage tank, cold release is conducted during charging and discharging of the energy storage battery cabin, and then the energy-saving effect is achieved.

The invention relates to the field of processes for producing insoluble sulfur with high thermal stability by a gasification method, in particular to a process for producing insoluble sulfur with high thermal stability by a gasification method, which comprises the following steps: selecting common sulfur with the purity of # imgabs0 as a raw material, screening and drying; the dried sulfur is heated and stirred; feeding into a tubular gasification furnace for gaseous state, so as to obtain high-temperature sulfur steam; introducing the high-temperature sulfur steam into a polymerization reaction furnace to carry out polymerization reaction, and controlling the temperature in the polymerization process; carbon disulfide is used as an extraction agent, sulfur steam obtained after polymerization reaction is introduced into an extraction tower, and a mixture of insoluble sulfur and a small amount of residual extraction agent is obtained from the bottom of the extraction tower; and carrying out solid-liquid separation on the mixture by using a centrifugal separator, drying and crushing to obtain the insoluble sulfur. By controlling the temperature in the polymerization reaction process, the problem that the yield is reduced due to the fact that the temperature is too low or too high is solved.

This invention relates to a temperature control device for a battery pack in a new energy bus, comprising a battery box, several module boxes arranged side-by-side in the middle of the inner side of the battery box, several battery cells arranged side-by-side in the module boxes, a heat spreader plate embedded in one inner wall of one side of the module box, several heat exchange tubes embedded inside the module box and abutting against the heat spreader plate, an insulation tank on one side of the outer side of the battery box, a heat exchanger on one side of the insulation tank, and an air conditioner on one side of the heat exchanger. The air conditioner is connected to the heat exchanger and the insulation tank respectively through refrigerant pipes. A water pump is installed at one end of the insulation tank. In winter or low-temperature environments, it collects heat from the air, heating the water in the insulation tank to hot water. In summer or high-temperature environments, it releases heat to the air through the heat exchanger and cools the water in the insulation tank to cold water, so that the battery cells can be maintained between 20 and 30 degrees Celsius in various temperature environments, so that the working efficiency of the battery cells can be optimized.

The utility model discloses full-electric-drive ultrasonic vibration-infrared heating energy field assisted multi-station precision glass mold pressing equipment, which comprises a control box, a feeding assembly, a pressure forming execution unit, a discharging assembly and an electric control cabinet, and adopts an infrared radiation heating mode to carry out rapid non-isothermal heating on a glass prefabricated part. And an ultrasonic vibration element and a pressure sensing element are arranged in the lower mold base of the mold pressing station, and when the prefabricated part is heated to a softening point, the ultrasonic vibration element is started to cooperatively work with an infrared heating technology, so that the filling speed and quality of glass mold pressing forming are improved. The full-electric driving technology is used, the control precision and the die pressing forming efficiency are high, in addition, compared with a traditional glass die pressing machining mode, the infrared heating element and ultrasonic vibration cooperative work machining technology achieves precise and efficient machining of a glass prefabricated part, the problem of interference of heating and vibration in traditional die pressing is solved, and the production efficiency is improved. And the forming precision and efficiency of the product are improved.

The invention provides a remote indoor temperature control system based on a voice recognition technology, and relates to the technical field of voice recognition. Recognizing the voice instruction based on a voice recognition model to obtain voiceprint features and voice texts; judging whether the voiceprint features meet a user white list or not; when the voiceprint features meet the user white list, performing word segmentation processing on the voice text to obtain control keywords; and executing corresponding operation on the indoor temperature control equipment based on the control keyword to realize remote temperature control. According to the invention, the user can easily adjust the indoor temperature only by sending out a simple voice instruction, and does not need to tediously and manually operate physical keys or specially open a mobile phone APP.

The invention discloses an intelligent circulation refrigeration control system for offset printing centralized liquid supply. The intelligent circulation refrigeration control system comprises a central control system, a refrigeration water storage and supply subsystem, an intelligent circulation refrigeration and supply subsystem, a recovery processing and recirculation subsystem and a pipeline subsystem. The using method of the intelligent circulation refrigeration control system for offset printing centralized liquid supply specifically comprises the following steps that S1, starting and adjusting are conducted; s2, circulating operation; s3, monitoring and adjusting; and S4, fault processing. The fountain solution and the cooling water are concentrated in one supply system, centralized and intelligent supply is achieved, a three-pump independent circulation system is formed, data of the fountain solution and data of the cooling water are monitored in real time and automatically regulated and controlled to be maintained in a set range, the resource utilization rate is increased to the maximum extent, temperature control is optimized, the maintenance process is simplified, and the service life of the fountain solution and the cooling water is prolonged. And the printing production efficiency and the printing quality are improved.

The invention belongs to the field of copper smelting of Ausmelt furnaces (Ausmelt furnaces), and particularly relates to an Ausmelt furnace top and bottom combined blowing method. Aiming at the defects of short service life of a top blowing spray gun, non-uniform heat transfer of a molten pool, poor fluidity of molten slag and the like in the Ausmelt furnace smelting process, the invention provides a top-bottom combined blowing method. Three or four bottom blowing spray guns are arranged, the top blowing spray gun and the bottom blowing spray guns are each of a three-layer sheath structure, the innermost layer is coal gas, the middle layer is oxygen-enriched gas, the outermost layer is CO2 gas, top blowing and bottom blowing are carried out at the same time, the flowability of melt in a molten pool is improved, the heat loss of the top blowing spray guns, the content of Fe3O4 in molten slag and the viscosity of the molten slag are reduced, and the production condition is remarkably improved.

The present invention discloses a temperature-controllable plate heat exchanger, which relates to the technical field of plate heat exchangers; it comprises a main body composed of a frame plate, a clamping plate, a plate, a sealing gasket, a tightening screw, and a guide rod; the frame plate is fixedly connected with a hot liquid inlet pipe, a hot liquid outlet pipe, a cold liquid inlet pipe, and a cold liquid outlet pipe; two temperature control pipes are fixedly installed on the frame plate, and the upper temperature control pipe is fixedly connected with the hot liquid inlet pipe through a connecting pipe. The advantages are: through the coordinated use of two one-way bearings, when required, the temperature control operation on a single temperature control pipe can be achieved by only changing the rotation direction of the regulating disk, and the temperature control operation is simple, and only a required rotational force can be applied to the regulating disk by hand; at the same time, the temperature control of a single temperature control pipe can be quickly switched to the simultaneous temperature control of two temperature control pipes, and the adjustment operation is simple, and only a required rotational force can be applied to the screw by hand, which effectively improves the temperature control requirements.

The present invention provides a fluidity measuring device for investment casting, comprising: at least one mold assembly, which is arranged on a frame, each of the mold assemblies comprising an upper template and a lower template, the upper template being arranged on the lower template, the lower template being provided with a serpentine flow channel on a side close to the upper template, the upper template being provided with a flow channel opening, the flow channel opening being communicated with a pouring inlet of the serpentine flow channel; a pouring cup, which is arranged on the upper template, the pouring cup being communicated with the pouring inlet through the flow channel opening; and a heating device, which is arranged on the frame, the heating device being a constant temperature heating device. The present invention provides a fluidity measuring device and measuring device for investment casting, wherein the heating device is a water bath or a constant temperature box, thereby avoiding the fire hazard caused by using an open flame electric furnace for heating during the experiment, and the electric furnace is used to heat the material to be tested at a constant temperature, thereby making the temperature of the material to be tested easy to control and preventing energy waste.

The invention discloses a pumping ring structure-based active optical fiber with high pumping conversion efficiency and an amplifier structure, and relates to the field of active optical fibers and optical fiber amplifiers, the pumping ring structure-based active optical fiber comprises a layered structure which is sequentially arranged from inside to outside, and the layered structure comprises a fiber core, a pumping ring structure, a quartz cladding and a coating layer, the optical fiber is located at the geometric center of the active fiber; the pumping ring structure is arranged around the fiber core and is used for guiding and converging pumping light to gather towards a fiber core area, the pumping ring structure is composed of one or more layers of concentric annular modulation areas, and the refractive indexes of all the layers of modulation areas are gradually increased layer by layer from outside to inside in the radial direction; according to the active optical fiber and amplifier structure, one or more layers of concentric pumping rings with refractive indexes gradually increased layer by layer from outside to inside are arranged in the cladding, and the concentration degree and energy density of pumping light towards a fiber core area can be remarkably improved to a certain extent by utilizing the guiding effect of refractive index gradients on a pumping light propagation path; therefore, higher pumping absorption efficiency and gain performance are realized.

The utility model discloses a strip steel heat preservation channel capable of improving the quality of a strip steel surface coating, which relates to the technical field of heat preservation channels and comprises a strip steel coating device and a strip steel heat preservation channel body, the strip steel coating device is used for coating the strip steel surface, and the strip steel heat preservation channel body is used for operating the strip steel coating device. According to the strip steel heat preservation channel for improving the quality of the strip steel surface coating, a good environment is provided, and the movable heating mechanism is arranged in the strip steel heat preservation channel body and used for heating the interior of the strip steel heat preservation channel body. The movable heating mechanism can dynamically adjust the heating position and strength according to the speed and temperature distribution of the strip steel, it is ensured that heating is more uniform before the surface of the strip steel is plated, it is crucial for improving the adhesive force of a plating layer and reducing defects, and the uniform heating can improve the quality of the surface plating layer of the strip steel.

The utility model relates to an integrated methanol reforming hydrogen production reactor which comprises a shell, a plurality of mutually parallel reforming reaction tubes are arranged in the shell, a methanol water evaporation part is sleeved outside the shell, and gaps among the reforming reaction tubes are hot flue gas flow channels. The methanol water evaporation part comprises a methanol water solution vaporization flow channel and a tail gas flow channel adjacent to the methanol water solution vaporization flow channel, and the inner wall of the reforming reaction tube is uniformly coated with a reforming catalyst. The reformer and the evaporator are combined together, only a set of heat source needs to be provided for the flue gas flow channel of the reforming reactor on the premise that the hydrogen production amount is guaranteed, the structure is more compact, the size is smaller, heat loss is reduced, the overall efficiency is improved, and temperature control over the reforming reactor is facilitated.

The utility model relates to a solid-phase reactor capable of regulating and controlling temperature, which belongs to the technical field of solid-phase reactors and comprises a reactor body and a temperature regulating and controlling device, a kettle body in the temperature reactor body is of a double-layer glass barrel structure, and the temperature regulating and controlling device comprises a controller, a water pipe, an electromagnetic valve and an external pipeline. A gap layer between the double-layer glass of the kettle body is externally connected with an external pipeline through a water pipe, the electromagnetic valve is mounted on the water pipe, the controller is used for regulating and controlling the electromagnetic valve, a partition plate is arranged in the double-layer glass structure of the kettle body, and the temperature environment of reaction in the kettle body is regulated and controlled by inputting water at different temperatures into the gap layer; therefore, the temperature of the whole reactor body can be regulated and controlled only by regulating and controlling the water inlet temperature, regulation and control are simple, and it needs to notice that due to the fact that the partition plates are arranged, water must flow through the whole reaction kettle from water inlet to water outlet, and the temperature of the kettle body can be sufficiently and uniformly regulated and controlled.

The utility model provides the power battery top cover and the power battery comprising the power battery top cover, the power battery top cover is stable in structure, and the space of the battery top cover can be effectively reduced. The power battery top cover comprises a cover plate which is provided with a mounting through hole; the polar column is provided with a pressing and abutting part abutting against the first side of the cover plate, a column body part penetrating through the mounting through hole and a pressing part penetrating out of the second side of the cover plate; the pressing piece is used for fixedly connecting the pressing part with the cover plate; the first insulating part is arranged between the pressing part and the first side of the cover plate in an abutting manner; the connecting sheet is arranged between the pressing and abutting part and the first insulating part in an abutting manner, and the connecting sheet is fixedly connected with the pressing and abutting part; wherein the cover plate and the first insulating part are respectively provided with a sinking table protruding towards the second side of the cover plate, the sinking table of the first insulating part is embedded in the sinking table of the cover plate, and the pressing and abutting part and the connecting piece are arranged in the sinking table of the first insulating part.

The utility model provides a hydrogen production device. The hydrogen production device comprises a hydrogen production device body, a secondary coil, an eddy current generating unit and at least one supporting piece, the hydrogen production device body is provided with a chamber, one end part of the hydrogen production device body is provided with a first lead-in port for a first substance to enter the chamber and a second lead-in port for a second substance to enter the chamber, and the other end part of the hydrogen production device body is provided with a lead-out port and a discharge port; the secondary coil group is wound outside the hydrogen production device body; the eddy current generating unit is arranged in the cavity corresponding to the winding position of the secondary coil; the supporting piece is provided with a plurality of through holes and is arranged in the cavity, and the eddy current generating unit penetrates through the supporting piece and is arranged in the cavity through the supporting piece.

The utility model discloses a laser edge banding machine for an iron frame panel lamp. The laser edge banding machine comprises a conveying rack, a material carrying device located below the conveying rack, a material distributing device, a material pressing device and a laser welding device, wherein the material distributing device, the material pressing device and the laser welding device are located above the conveying rack. The conveying rack is sequentially provided with a feeding position, a welding position and a discharging position. The material separating device is used for separating materials at the feeding position one by one and pushing the materials to the material carrying device; the material carrying device is used for carrying the separated materials from the feeding position to the welding position and carrying the welded materials from the welding position to the discharging position. The material pressing device is located below the laser welding device and used for pressing materials on the welding position. The laser welding device is used for conducting laser welding on the materials on the welding positions. According to the utility model, the welding efficiency and the yield are improved, and the perpendicularity and the welding strength of a product are ensured.

The utility model discloses an engine oil tank heating system, and relates to the technical field of vehicle engineering. Comprising an oil tank body, vortex tubes and an air inlet assembly. Heating pipes are distributed in the oil tank body; the vortex tube is provided with an air inlet port and a hot end outlet; the air inlet assembly is connected with the air inlet port, and an air inlet of the heating pipe is connected with the hot end outlet; the gas inlet assembly is used for conveying gas to the gas inlet port, the gas is divided into high-temperature gas and low-temperature gas in the vortex tube, and the high-temperature gas is output into the heating tube through the hot end outlet and used for heating the interior of the oil tank body. The low-temperature diesel oil in the oil tank body does not need to be replaced, the running cost of a vehicle is saved, and the paraffin precipitation phenomenon of the oil liquid under the cold condition is avoided; and the whole system is simple in structure, the vehicle heating time is shortened, and the heating efficiency is improved.

The utility model discloses a heating device for a laminator, which comprises a rubber roller and two roller seats arranged at two ends of the rubber roller, a heating device is arranged in the rubber roller, the heating device further comprises a temperature control mechanism, and the temperature control mechanism comprises a heating sheet connected with the heating device in series and a temperature control switch for controlling the working state of the heating sheet. According to the heating device for the laminator, the heating efficiency can be improved, the energy consumption can be reduced, the temperature can be controlled, and potential safety hazards are reduced.

The invention relates to the field of semiconductor equipment, and provides a temperature control device and method, the temperature control device is applied to temperature control of a semiconductor equipment pipeline, and the temperature control device comprises a detection unit, at least two heating bags and at least one adjusting unit; each heating bag comprises a heating unit; the heating unit covers the outer side of the semiconductor equipment pipeline; the heating unit is used for heating the semiconductor equipment pipeline; the detection unit and all the heating units form a series loop, and the heating units are located on the inner side of the heating bag. The detection unit is used for acquiring a temperature value in the heating bag; the adjusting unit is connected with the heating unit in parallel, and the adjusting unit is located on the outer side of the heating bag; and the adjusting unit and the heating unit which are connected in parallel are used for sharing the current in the series loop together. The device is used for controlling and balancing the temperature of each heating bag coated on the pipeline of the semiconductor equipment.

The utility model relates to reactor technical field provides a reactor for fluorinated ethylene carbonate production, including reactor main part and feed inlet, the top of reactor main part is provided with feed inlet, the side of reactor main part top away from feed inlet is provided with the filler mouth, the top of reactor main part is equipped with the stirring structure, the utility model discloses be provided with stirring structure, start stirring motor makes the stirring shaft rotate, and make the stirring shaft and the output shaft through the intermeshing of primary bevel gear and second bevel gear interconnect, thereby make the stirring shaft and the output shaft synchronous rotation, the stirring shaft drives the stirring vane and carries out the stirring to the inside of reactor main part, and the output shaft drives the quantitative board and rotates in the inside of filler mouth and carries out the quantitative addition of potassium fluoride, thereby reached the purpose of uniform addition of potassium fluoride while conveniently stirring raw materials.

The present invention relates to the technical field of skin care products, and discloses an acne skin relieving gel containing swallow and folium artemisiae argyi components, the acne skin relieving gel comprises the following components by weight: 2-3% of an oat kernel extract; 2%-3% of a folium artemisiae argyi extract; 5%-8% of a humectant; 0.5%-0.8% of an antioxidant; 0.1% to 0.2% of matrine; 4.65% to 7.4% of a skin conditioning agent; according to the invention, the oat kernels and the folium artemisiae argyi extract are compounded, so that the anti-allergy and anti-oxidation performance is synergistically improved, and redness, stabbing pain and inflammation are effectively relieved. The composite moisturizing system is combined with natural components, so that double effects of water absorption and water locking are realized, and dryness and roughness are improved permanently. All the components are natural and mild, do not contain artificial essence, pigment or preservative, and are suitable for sensitive skin. The preparation process is simple and controllable, high in batch stability and suitable for large-scale production.

The utility model belongs to the technical field of transformers, and discloses a transformer with a cooling function, which is characterized in that a heat dissipation channel is formed in a box body, the transformer is arranged in the heat dissipation channel, an air-water heat exchanger is fixed on the inner wall surface of one side of the box body and is positioned in the heat dissipation channel, and industrial cooling water exchanges heat with air in the heat dissipation channel at the air-water heat exchanger; and air in the heat dissipation channel can be cooled through the air-water heat exchanger. The turbulent flow fan is arranged on one side of the air-water heat exchanger and located in the heat dissipation channel, low-temperature air obtained after heat exchange can be blown to the transformer through the turbulent flow fan, the low-temperature air exchanges heat with the high-temperature transformer, the temperature of the transformer is reduced, then the high-temperature air flows back to the air-water heat exchanger through the heat dissipation channel to be cooled, and the circulation is repeated. Heat of the transformer is continuously taken away through air circularly flowing in the heat dissipation channel, so that over-temperature caused by heat accumulation of the transformer is avoided.

A thermostatic pressure balance valve assembly, the thermostatic pressure balance valve assembly including a manifold; a thermostatic valve; the system includes a manifold including a hot water inlet configured to receive hot water from a hot water source, a cold water inlet configured to receive cold water from a cold water source, a central chamber, and a pressure balancing chamber, a thermostatic valve positioned in the central chamber of the manifold, and the pressure balancing device is positioned in the pressure balancing cavity.

The disclosure relates to a flange for a process tube in an apparatus for processing substrates, e.g., a vertical furnace. The flange may be provided with an opening for in use giving access to the process chamber of the process tube and a cooling channel for allowing a cooling fluid to flow there through and cool the flange. A material with a heat conductivity between 0.1 and 40 W / m K may be at least partially provided in between the cooling fluid and the rest of the flange.

The utility model relates to the technical field of table vinegar production equipment, in particular to sterilization equipment for table vinegar production, which comprises a heating part, the heating part is sequentially connected with a heat preservation part and a cooling part, the heating part comprises a heating box body and a heating pipeline coiled in the heating box body, first heating mechanisms are arranged on two side walls of the heating box body, and second heating mechanisms are arranged on two side walls of the heating box body. The heating pipeline is located between the heating mechanisms, and the heat preservation part comprises a heat preservation box body and a heat preservation pipeline coiled in the heat preservation box body; the heat preservation box body is filled with heat preservation liquid used for heat preservation, and a second heating mechanism used for heating the heat preservation liquid and a first temperature sensor used for monitoring the temperature of the heat preservation liquid are further arranged in the heat preservation box body. Vinegar enters the heating part through the heating pipeline, and is heated by the heating mechanisms on the two sides in the continuous flowing process of the vinegar so as to be disinfected, so that the problem of non-uniform heating caused by heating of the vinegar in the barrel can be effectively solved, and the condition that the quality of the vinegar is reduced is avoided.

This invention discloses a fan coil unit temperature control device and method, relating to the field of temperature control technology. The invention connects a microcontroller unit (MCU) and an NB-IoT chip to a remote MQTT cloud server. The NB-IoT chip uploads the current room temperature, outlet air temperature, weather conditions, and room load model to the remote MQTT cloud server. Based on the current parameters and the room load model, the remote MQTT cloud server predicts the room temperature and humidity at the next moment and controls the fan coil unit via the MCU. In other words, this invention connects the MCU to the cloud server via the MQTT protocol, allowing for precise temperature control of the fan coil unit in complex buildings.

The utility model discloses a vertical high voltage transformer, high voltage transformer framework and switching power supply, the vertical high voltage transformer, including framework, a plurality of windings and magnetic core, and framework includes winding post and the through -hole of setting up in the middle part of winding post, a plurality of windings are wound on the winding post of framework, and the magnetic core is into the through -hole of framework, its characterized in that: still include shielding layer, set up between the primary winding and the secondary winding, and its first end and tail end have no electrical connection, and is equipped with the lead -out wire, is used to connect the ground through the lead -out wire, a plurality of windings, including the first winding, the second winding, the third winding and the fourth winding of primary side and the secondary winding, and the first winding and the second winding of primary side are separated and are wound in the same layer in the way of separating line and pull out four wire ends, are used for fixedly connected with four transformer pin respectively. The utility model discloses through a series of methods and structure optimization, and the product design of vertical high voltage transformer is more miniaturized, and can improve the comprehensive performance of power supply product significantly.

The utility model relates to the technical field of paperboard production, in particular to a paperboard production line temperature control device which comprises an installation plate, an air spraying assembly and an air guiding assembly are installed at the upper end and the bottom of the installation plate respectively, and the air guiding assembly comprises two side plates fixedly connected to the lower end face of the installation plate. The airflow is blown to the moisture absorption cloth through the flow guide flaring, the moisture absorption cloth absorbs water with the low temperature, and therefore the temperature of the sprayed air is lower, cold air enters the two air guide pipes through the air outlets, the cold air enters the two air guide cavities respectively and is sprayed downwards, and the whole device is installed on a conveying belt of the paperboard production line. And when a motor on the outer side of the side plate is started, a lead screw is driven to rotate, so that the distance between the two air guide cavities can be adjusted, the purpose of adjusting the air spraying range is achieved, the paperboard cooling device can adapt to paperboards of different sizes and models, adjustment is convenient, and applicability is high.

The invention relates to a coated cooking element (1) for a cooking appliance or an electric cooking appliance, comprising a metal substrate (2) which is coated on at least one face (2a) with at least the following layers and which, in the following order starting from the metal substrate (2): (3a) connecting sub-layers, a sublayer comprising between 20% and 100% by weight, based on the total weight of the sublayer, of one or more polymers (alpha) selected from the group consisting of polyaryletherketones (PAEK) and one or more polymers selected from the group consisting of polyetherimides (PEI), polyimides (PI), polyamide-imides (PAI) and polybenzimidazoles (PBI) wherein the PAEK: (PEI + PI + PAI + PBI) weight ratio is comprised between 1: 1 and 15: 1; (3b) optionally, one or more intermediate layers consisting of one or more colorants and optionally one or more silicone resins, one or more thermoplastic polymers and / or one or more fillers, and / or one or more additives, (3c) a finish layer consisting of one or more silicone resins and optionally one or more thermoplastic polymers, and / or one or more fillers, and / or one or more additives, and / or flakes; the invention also relates to a manufacturing method thereof and a cooking utensil containing the same.