55results about How to "Meet the cooling effect" patented technology

The invention relates to a rolling oil composition used for a twelve-high reversing cluster mill; the rolling oil composition belongs to the field of metallurgical steel rolling oil products, and comprises the components according to weight percent as follows: 60-70 percent of compound neopentyl polyol ester, 14-28 percent of mineral oil, 1-5 percent of phosphorus-containing extreme-pressure and anti-wear agent, 1-5 percent of sulfur-containing extreme-pressure and anti-wear agent, 2-12 percent of compound emulsifier, 1-3 percent of anti-rust agent, 1-3 percent of antioxidant and 0.01-0.5 percent of defoamer; the rolling oil composition takes the compound neopentyl polyol ester synthetic ester with excellent lubricating performance as the lubricating basic component; an oiliness agent main body with high lubricating performance and high extreme-pressure and anti-wear performance is composed by adding the scientific components of the phosphorus-containing and the sulfur-containing extreme-pressure and anti-wear agents; and the anti-rust performance and the emulsion stability are ensured by adopting the mineral oil, the anti-rust oil, the emulsifier and the antioxidant with the appropriate proportion for coordination, thereby creatively solving the contradiction between the lubricating performance and the detergence, ensuring the requirements on the lubricating performance of the quality when rolling steel plates with thin specifications, protecting the lubricating requirements of back-up bearings and ensuring the volatility and the annealing detergence under the cleaning-free condition.

A thermal inspection method is provided. The method includes measuring a transient thermal response of a cooled part installed in a turbine engine, wherein the transient thermal response results from operation of the turbine engine. The method also includes using the transient thermal response to determine one or more of a flow rate of a fluid flowing through one or more film cooling holes in the cooled part during operation of the turbine engine, at least one heat transfer coefficient for one or more internal passages in the cooled part, and a combined thermal response for the cooled part. The method further includes comparing at least one of the flow rate, the at least one heat transfer coefficient, and the combined thermal response of at least a portion of the cooled part to at least one baseline value to determine whether a thermal performance of the cooled part is satisfactory.

The invention discloses a motor, a power assembly, power equipment and a motor cooling method, and belongs to the field of motor cooling. The motor comprises a motor body and an oil cooling mechanism,wherein the oil cooling mechanism comprises a cooling stator oil groove, a cooling winding group oil groove, an oil inlet channel and an oil outlet channel; the cooling stator oil groove is formed ina first inner wall, opposite to a stator, of a machine shell, the cooling winding group oil groove is formed in the upper part of a second inner wall, opposite to an end part winding group, of the machine shell, and the cooling winding group oil groove communicate with the cooling stator oil groove; the oil inlet channel is arranged on the upper part of the machine shell, and the oil inlet channel communicates with the cooling stator oil groove; the oil outlet channel is arranged on the lower part of the machine shell, and the oil outlet channel communicate with the cooling stator oil grooveand an annular space between the machine shell and the end part winding group; the oil cooling mechanism cannot increase the size of the machine shell of the motor additionally, the thickness of the machine shell is obviously reduced, and the small size characteristics of the motor is ensured; the oil cooling mechanism enables cooling oil to be in directly contact with the outer wall of the statorand the end part winding group, sufficient cooling is ensured, and the heat dissipation under large power of the motor is met; and the oil cooling mechanism enables an oil way system to be more simple and reliable, and the application is high.

The invention discloses a pressure cooker which comprises an outer pot, annular supporting pieces, a coil disc, an air duct support and a fan. A turned edge extending inwards is arranged at the lower end of the outer pot. An opening in the bottom of the outer pot is defined by the turned edge. The turned edge is provided with a plurality of elastic pieces. The annular supporting pieces support the elastic pieces and can move in the vertical direction. The coil disc is arranged on the annular supporting pieces and located below the annular supporting pieces. The opening in the bottom is matched with the coil disc. The air duct support is arranged on the outer bottom wall of the outer pot. An outer annular protrusion protruding towards the coil disc is arranged on the upper surface of the air duct support. The width, in the radial direction, of the outer annular protrusion is matched with the width, in the radial direction, of the coil disc. An air duct with an air inlet and an air outlet is defined by the outer annular protrusion, the upper surface of the air duct support, the lower surface of the coil disc and the outer pot together. The fan is arranged at the air outlet. According to the pressure cooker, the coil disc is good in cooling effect, the outer pot is high in structural strength, and the pressure cooker is stably supported by an inner pot.

The invention discloses a high-efficiency heat dissipation wall-mounted inverting control all-in-one machine which comprises a waterproof case and a boosting radiator, a boosting transformer, an inverting radiator, a power supply radiator, a power supply boosting radiator and a rectification radiator which are arranged in the case. One end of the waterproof case is provided with two air inlet fans and a wiring terminal and the other end of the waterproof case is transversely provided with a buffer air duct; both ends of the buffer air duct are provided with air outlets; the side wall of the buffer air duct is provided with three induced draft fans; and the position in the waterproof case and close to the buffer air duct is provided with an air deflector. Due to adoption of the structural form, the problem of the requirements on a high protection grade and high heat exchange is solved. The machine adopts and uses the small-scale radiators, is low in cost, has a small complete machine space and can further meet the requirement on heat dissipation performance; integral waterproofness of the case is adopted; and meanwhile, air inlets and the air outlets are requested to have large air volumes, so that the high-efficiency heat dissipation wall-mounted inverting control all-in-one machine can meet the requirements of the radiators and other heat emitting devices inside on heat dissipation.

The invention relates to a semiconductor liquid-cooling radiator, which comprises a semiconductor refrigeration device and a liquid-cooling radiator, wherein a cold end of the semiconductor refrigeration device is arranged on a high-power electronic component, and is used for cooling the high-power electronic component; and a hot end of the semiconductor refrigeration device is connected with the liquid-cooling radiator, and is cooled through the liquid-cooling radiator. The semiconductor liquid-cooling radiator utilizes a semiconductor refrigeration technology for cooling the high-power electronic component, and cools the hot end of the semiconductor refrigeration device through the liquid-cooling radiator, so as to meet the cooling requirement of high-power electronic equipment.

The invention relates to the field of fan motor technology, and more particularly to a DC three-phase brushless motor for a household fan. The DC three-phase brushless motor includes a winding group, a magnetic frame, a bearing and a PCB, and also includes a magnet and a base. The magnetic frame is provided with a shaft core. The winding group is arranged on the shaft core. The magnetic frame is arranged on the outer surface of the winding group. The magnet is located between the magnetic frame and the winding group. The winding group is connected with the PCB. The base is arranged in the shaft core in a sleeving manner and in an inner hole of the winding group in a penetrating manner. One end of the base is in contact with the magnetic frame, and the other end of the base protrudes from the PCB. The bearing is arranged in the shaft core in a sleeving manner and mounted in the base. The invention is capable of converting an AC voltage of 220 V to a DC voltage of 5V, and ensures that the invention can be driven by the 5V voltage to achieve the running speed and air pressure and volume of an AC motor, thereby saving energy and also meeting the cooling effect.

The invention relates to a low-vibration low-noise electromechanical static pressure servo mechanism which comprises a control unit assembly and actuator assemblies, wherein two one-to-two oil ducts of the control unit assembly are respectively connected with two oil ducts of the two actuator assemblies through a hydraulic hose and a self-sealing connector; each actuator assembly comprises two actuators and two displacement sensors, and one displacement sensor is arranged in each actuator; the control unit assembly comprises a servomotor pump, a one-way valve, an isolating valve, a low-pressure pressure sensor, a pressure transducer, a self-pressurization oil tank, a differential pressure transducer, two high-pressure oil ducts and a low-pressure oil duct; and the assemblies are connected into the high-pressure oil duct or low-pressure oil duct. The servo mechanism has the advantages of compact structure, high reliability and favorable sound insulation and sound absorption effects, is convenient for demounting and interchange, and obviously lowers the vibration and noise.

The invention discloses a high position cooling water jacket structure of a compound air cylinder cover. The structure is arranged in the compound air cylinder cover. The compound air cylinder cover comprises a cylinder hole, an oil atomizer located on the top of the cylinder hole and a nose bridge area around the oil atomizer. The high position cooling water jacket structure comprises an upper water jacket, a middle water jacket, a middle water hole, a lower water jacket and a lower water hole. The upper water jacket is arranged on the upper part of the compound air cylinder cover, the middlewater jacket is arranged below the upper water jacket, the middle water hole is formed between the upper water jacket and the middle water jacket and surrounds the oil atomizer, and the lower water jacket is arranged around the periphery of the cylinder hole; and the lower water hole is formed between the bottom of the middle water jacket and the top of the lower water jacket. The high position cooling water jacket structure disclosed by the invention can meet the cooling demand of an acting high heat area under the circumstance of not increasing a special cooling structure.

The invention discloses a fan control system. The fan control system is applied to an electronic device comprising a fan. The fan control system comprises a setting module and a control circuit, the setting module is located at a user terminal of the electronic device so as to receive a user instruction, the control circuit is electrically connected with the fan and the setting module so as to analyze the user instruction, and a corresponding control signal is produced; the control signal is used for controlling the fan to rotate correspondingly. According to the fan control system, the technical problem that in the prior art, an electronic device cannot set a specific parameter of rotating of the fan is solved, and the technical effect of controlling the fan to rotate precisely is achieved.

The invention provides a heat management system of a hybrid vehicle and the hybrid vehicle. The heat management system of the hybrid vehicle comprises an engine water circulation system, a motor transmission module oil cooling circulation system and a motor cooling circulation system, wherein the engine water circulation system is used for absorbing heat generated by an engine of the vehicle; the motor transmission module oil cooling circulation system communicates with the engine water circulation system to heat an oil liquid in the motor transmission module oil cooling circulation system by using the engine water circulation system; the motor cooling circulation system communicates with the motor transmission module oil cooling circulation system; and the motor cooling circulation system is used for controlling the value of the temperature of the oil liquid in the motor transmission module oil cooling circulation system. According to the heat management system of the hybrid vehicle, by using the engine water circulation system to heat the oil liquid in the motor transmission module oil cooling circulation system, the temperature of the oil liquid is increased, the viscosity of the oil liquid is reduced, and the friction power of the motor transmission module oil cooling circulation system is reduced, and therefore, the oil consumption of the whole vehicle is reduced.

The invention relates to a multipurpose functional liquid for a new energy electric vehicle and a preparation method and application thereof, and the multipurpose functional liquid comprises the following components in parts by weight: 0.5-3 parts of a viscosity index improver, 0.5-2 parts of a purification dispersant, 1-5 parts of an antioxidant, 0.05-2 parts of an anti-wear reagent at extreme pressure, 0.3-3 parts of a flame retardant, 0.05-0.5 part of a rubber antioxidant, 0.05-3 parts of a sealing compatibility improver and 0.05-0.5 part of a friction improver. The lubricating oil is prepared from the following components in parts by weight: 0.1-3 parts of an anti-corrosion and anti-rust rare metal protective agent, 0.01-0.1 part of an anti-foaming agent, 0.01-0.1 part of a demulsifying agent and 77.8-97.38 parts of base oil. The multifunctional liquid for the new energy electric vehicle has universality, safety, practicability, applicability and full service life, can meet the requirements of a battery, a motor, an electric control system and a gearbox transmission system of the new energy electric vehicle on oil liquid, and realizes integrated application of oil liquid of the whole pure electric vehicle.

The invention discloses an engine hood for an electric vehicle and an assembly method thereof. The engine hood comprises a plastic outer plate, and a plastic cover plate bracket arranged at the inner side of the plastic outer plate. The assembly method of the engine hood for the electric vehicle realizes the assembly of the engine hood for the electric vehicle. The assembly method can satisfy the lightening requirement, has the advantages of energy conservation and environmental protection, can improve the driving mileage of the electric vehicle, and can provide the protection to pedestrians in the vehicle collision process; meanwhile, the connecting structure of the plastic outer plate and the plastic cover plate bracket satisfies the requirement of structural strength under the precondition of satisfying the battery heat dispersion of the electric vehicle; and compared with a metal engine hood, the engine hood for the electric vehicle is low in production and maintenance costs, and can satisfy the requirements of energy conservation and environmental protection.

The invention discloses a submersible pump system and a submersible pump, wherein the submersible pump comprises a protection housing (1), a pump body (2) arranged inside the protection housing (1), a motor (3) and a control device (4). The output shaft (31) of the motor (3) is connected with the pump body (2). The submersible pump further comprises a sealing mechanism (5) coated on the control device (4) to seal the control device (4) and a heat radiating system (6) for radiating the heat of the control device (4) outwards. The control device (4) of the submersible pump radiates heat through the heat radiating system (6) via the sealing mechanism (5) and the protection housing (1), which ensures the waterproof function to the control device (4) but also enables the heat from the electric components of the control device in the sealing mechanism to be released in water, achieving the heat radiating effect of the electric components. In addition, the submersible pump of the submersible pump system is connected in parallel, and a host machine is connected electrically in parallel with the submersible pump control signals in the system through a main line and through a power supply line, power supply can be provided. This reduces the wiring length of the control line and the power supply line, saving materials.

The invention discloses a design method of a novel Purley CPU radiator. The design method comprises the following steps that the ventilation amount of a scene is obtained, and a thermal resistance Rca value of the radiator is obtained through a look-up table; a certain CPU model is selected, a power consumption value is obtained through a look-up table, and the maximum surface temperature Tcmax value allowed by a CPU is obtained through a look-up table; the product of the thermal resistance Rca value and the power consumption value of the radiator serves as a CPU surface temperature Tc value under the scene; the CPU surface temperature Tc value is compared with the maximum surface temperature Tcmax value allowed by the CPU; if the CPU surface temperature Tc value is smaller than or equal to the maximum surface temperature Tcmax allowed by the CPU, it is confirmed that the radiator can support the CPU model, and if the CPU surface temperature Tc value is larger than the maximum surface temperature Tcmax allowed by the CPU, the steps need to be repeated to select a low-specification CPU model again. According to the method, the CPU power consumption level which can be supported by the design of the radiator can be evaluated in advance through analysis, the efficiency is high, and the design cost can be reduced.

An imaging apparatus, having an imaging element has top, bottom, front, and rear sides, includes exterior members, a control circuit on a control circuit board to control the imaging apparatus, a display panel on the rear side as one of the exterior members, and a heat release fan. The control circuit board and the display panel are arranged sequentially in a direction of an optical axis from the front side to the rear side. A duct having a vent formed on the duct rear side as one of the exterior members extends from the rear side to the front side and from the top side to the bottom side and connects to a bottom side vent formed on the bottom side as one of the exterior members. The heat release fan is inside the duct near the bottom side below the control circuit board as one of the exterior members.

The invention relates to an electrical cabinet with an air flow circulating device, include a plate shell, vertical beam, Fan, air inlet cover, the plate and shell are arranged on the outside of the frame composed of the cross beam and the vertical beam to form a sealed cabinet body, The vertical beam and the cross beam are both hollow structures, and are provided with an installation hole and anair outlet hole. The fan is arranged on the upper part of the cabinet body. The air outlet of the fan sucking hot air from the cabinet is connected with the air inlet of the air inlet cover, and the air outlet of the air inlet cover is communicated with the hollow channel of the vertical beam from the upper part of the vertical beam. The invention introduces the hot air in the fan suction cabinetinto the vertical beam through the air inlet cover, An air duct is formed in the inside of the cabinet to realize circulating flow inside the cabinet, and hot air is exchanged with the outside througha metal plate and shell, so that special heat exchange equipment is not required to be added, and the external air of the cabinet body is not required to be sucked into the cabinet body to meet the heat dissipation effect, and the protection level of the cabinet body is ensured.

The invention relates to the technical field of cell parallel battery modules, in particular to a 21700 cell series-parallel battery module. The 21700 cell series-parallel battery module comprises a plurality of 21700 battery module units arranged in sequence, and the 21700 battery module units penetrate through a fixed part in sequence and are fixed into a whole; each 21700 battery module unit comprises a module housing and a plurality of 21700 single cells, parallel confluence plates are mounted on two outer walls of the module housing, and a plurality of insertion slots and electrode insertion through holes are provided in two inner walls of the module housing. According to the 21700 cell series-parallel battery module, the 21700 single cells are fixed in the module housing by insertingand clamping, and the 21700 battery module units are correspondingly clamped and limited and penetrate through bolt nut connectors, which can meet the high-strength structure required for the series-parallel battery module composed of 21700 single cells with large capacity, the structure is simple, and the manufacturing cost is low.

The invention provides a butterfly radiator and an optical module group and an optical module group single plate with a butterfly radiator, a middle bottom plate is arranged at the tail end of a front bottom plate of the radiator, the other end of the middle bottom plate is connected with a rear bottom plate, a plurality of cooling fins are arranged on the front bottom plate, the middle bottom plate and the rear bottom plate, the middle bottom plate is an isosceles triangle, an included angle beta formed between the two side edges on the same side of the front bottom plate and the rear bottom plate>= 2 alpha, wherein 0 degree< alpha< 90 degrees. The optical module group is provided with a base which is fixedly connected on the rear end of the optical module and a jump ring or tabletting which is arranged on the base, and a butterfly radiator is arranged on the base. The single plate is provided with a plurality of optical module groups with the same structure which complies the arranged angle alpha and abreast arranged on the circuit plate, the optical module groups are provided with the optical module arranged on a single plate panel, the base which is fixed the rear end of the optical module, the jump ring or the tabletting which is arranged the base, and the butterfly radiator which is provided with a bend is arranged on the base. The butterfly radiator and the optical module group and the optical module group single plate with a butterfly radiator have the advantages of being capable of improving level of integration and assembly of the optical module and further improving heat dissipation performance of a single optical module.

The invention relates to a movable heat dissipation cabinet for big data analysis, which comprises a base and a soft cushion layer, wherein a cabinet body is distributed at the top of the upper end ofthe base; fixing grooves are formed in the two ends of the front face of the cabinet body; the soft cushion layer is attached to the interior of the fixing groove; the two ends of the base are movably connected with first hinges; a door body is distributed on the other side of the first hinge; embedded blocks are distributed at the two ends of the inner wall of the door body; and an embedded plate is welded in the middle of the embedded block. As the base and the cabinet body are arranged, a welding integrated structure exists between the base and the cabinet body, the base and the cabinet body are used as basic equipment of the whole device, connection is carried out by adopting a welding mode, the connection strength is high, the structure is stable, moving wheels are arranged on the inner side of the base and can effectively reduce the friction coefficient between the base and the ground, and when a user needs to adjust the device, the user can push the cabinet body to move the cabinet body, so that the flexibility of the device is improved.

The invention relates to an induction heating and refining device with tundish and channels shaped like an Arabic number eight. The induction heating and refining device comprises a composite cooling system, the two molten steel channels and at least one induction heating device. The molten steel channels are connected with a large package injection chamber and a pouring chamber. The molten steel channels are arranged between the large package injection chamber and the pouring chamber in an Arabic number eight shape. One induction heater is arranged around the periphery of one molten steel channel or one induction heater is arranged around the periphery of each molten steel channel. The induction heater comprises an n-shaped iron core with the open lower end, a coil and a yoke. The coil (8) winds around the side edge of the n-shaped iron core. The yoke is arranged on an opening of the n-shaped iron core. The coil and the yoke form a complete magnetic return path. The tundish is provided with a non-magnetic protecting sleeve vertically through. One side of the iron core is arranged in the protecting sleeve. The device can be integrally assembled or disassembled, maintenance is convenient, the structural shape of the tundish and the relative positions of the large package injection chamber and various sprue gates are not changed basically, and the device is particularly suitable for the technical transformation of the tundish.

The invention discloses a ventilating structure and a method for distributing flow of internal and external cooling medium based on loss ratio. A novel flowing path for a motor internal cooling medium is designed. The problem of relatively high temperature rise distribution difference of a stator and a rotor caused by unbalanced air ventilation distribution of the original ventilating structure is solved by the ventilating structure provided by the invention; the duty cycle of the internal and external ventilating ducts can be determined according to the ratio of the stator loss in the total loss; on the basis of a common ventilating baffle structure, a baffle is improved; a part of the original external ventilating duct is adopted as the flowing path for the internal cooling medium; the ventilating ducts filled by different cooling mediums are distributed at intervals, so that the internal air can be cooled by the external air; the matching between the baffle and a machine case along the width is adjusted only according to the stator and rotor loss ratio, and the effective heat exchange between a primary circuit and a secondary circuit is realized; balanced cooling effect distribution for the stator part and the rotor part can be realized as well; and therefore, the overall temperature rise distribution condition of the motor is perfected.

The invention provides a control method and device for the hydraulic oil fan rotating speed and an excavator. The control method includes the steps that the current hydraulic oil temperature of the excavator after the excavator is started is obtained; the current hydraulic oil temperature is within a preset zone, a first hydraulic oil fan rotating speed corresponding to the current hydraulic oil temperature is obtained; and when a starting motion signal generated by an air-conditioner switch of the excavator is received, the first hydraulic oil fan rotating speed is compared with the minimum hydraulic oil fan rotating speed for maintaining normal running of an air-conditioner, and the higher fan rotating speed in the first hydraulic oil fan rotating speed and the minimum hydraulic oil fan rotating speed serves as the current hydraulic oil fan rotating speed. According to the method, the cooling effect of hydraulic oil is guaranteed, and meanwhile normal running of the air-conditioner is guaranteed. When the excavator works, under the conditions of different hydraulic oil temperatures, the hydraulic oil fan rotating speed is adjusted according to the hydraulic oil temperature, and the fuel consumption is greatly reduced on the premise that the cooling effect is achieved.

An electrical mains-powered actuator designed to operate a closing, darkening or solar protection element, having in a common enclosure, a direct current motor, a board controlling the motor power supply and an AC / DC voltage converter, the control board including a radio-wave receiver, such that the voltage converter enables lowering of the voltage and includes at least one switch controlled at a frequency (F1) such that it is at most equal to twice the mains sector frequency or such that its ratio to the radio-wave receiver frequency (F0) ranges between 2.2 10−5 to 2.2 10−4.

The invention relates to a temperature control device and method for a battery pack. The device comprises a water distribution and collection module, a plurality of flow control modules and a plurality of pipelines. Wherein one end of each of the pipelines is connected to the water distribution and collection module, and the other end of each of the pipelines is used for being connected with a corresponding battery pack; and the flow control module is arranged on the pipeline, and is used for controlling the flow rate of the coolant flowing through the battery pack connected to each pipeline.The flow control module is added in the pipeline connected with each battery pack, the invention realizes the separate control of the flow rate of the coolant flowing through each battery pack, further adapts to different types of battery packs, and ensures the heat dissipation efficiency of each battery pack in the charging process.

A motor inverter disclosed by the invention comprises a shell, a radiator, a power module, an energy storage module, a control panel and a filtering module. The radiator is provided with a via hole, the radiator is provided with a cooling water channel at the outer side of the via hole, the power module is arranged at one side of the radiator, and the power module comprises three power boards. The three power boards are arranged on the outer side of the via hole in the circumferential direction and correspond to the cooling water channel in position, the filtering module and the power module are arranged on the radiator in an adjacent mode, the energy storage module is arranged on the other side of the radiator, and the energy storage module partially penetrates through the via hole to be electrically connected with the three power boards and the filtering module. The shell is connected with the radiator and covers the power module, the filtering module and the energy storage module, the control panel is arranged between the shell and the power module and fixedly connected with the radiator on the inner side of the cooling water channel, and the control panel is electrically connected with the power module, the filtering module and the energy storage module. The motor inverter is small in size, high in heat dissipation efficiency and long in service life.

The invention provides a cooling tower of a hydrodynamic draught fan for cooling circulated cooling water by the air, comprising a tower body, a hydroturbine, a fan blade and a water distributing system, wherein the water inlet of the hydroturbine is communicated to the circulated cooling water through a water inlet pipe, the output shaft of the hydroturbine is rotatably coupled with the fan blade and the water outlet of the hydroturbine is coupled to the water distributing system; the water output region of the water distributing system is located in an air ventilating path in the tower body and the water output direction is opposite to the air ventilating direction in the tower body; and the tower body is constructed as follows: the tower input water head and the flow of the circulated cooling water are coincident to the output power of the hydroturbine and the shaft power of the fan blade. By using the proper water head and the rated water amount of the circulated cooling water as the power, the water flow passes through the efficient hydroturbine and the fan blade is driven by a transmission shaft to generate the air so as to satisfy the cooling effect of the cooling tower.

The invention relates to the technical field of cutting fluid, in particular to a discharge-free aluminum alloy cutting fluid and an application method thereof. The discharge-free aluminum alloy cutting fluid comprises 0-10 parts of boric acid, 1-5 parts of diacid rust inhibitors, 1-5 parts of triacid rust inhibitors, 1-20 parts of aqueous polyether ester, 1-30 parts of alcohol amine, 1-5 parts ofcationic surface active agents, 0.1-2 parts of defoaming agents and the balance deionized water. The application method includes diluting the discharge-free aluminum alloy cutting fluid by water in avolume ratio of 1:(20-30) for grinding aluminum alloy; diluting the discharge-free aluminum alloy cutting fluid by water in a volume ratio of 1:(10-20) for milling aluminum alloy; diluting the discharge-free aluminum alloy cutting fluid by water in a volume ratio of 1:5-1:10 for drilling and tapping aluminum alloy. The discharge-free aluminum alloy cutting fluid is applicable to light-load and heavy-load machining of the aluminum alloy and capable of keeping a pH value and the granularity stable effectively during use and avoiding deteriorating and stinking, and only needs continuous additionwithout waste liquid discharge.

The present invention provides a textile structure heat dissipator thermal resistance testing apparatus, which comprises: a rotation device for supporting a heat source device and a textile structure heat dissipator to be tested, wherein the rotation device can rotate around a shaft; the heat source device arranged on the rotation device and used for heating the bottom plate of the textile structure heat dissipator to be tested, wherein the shape of the heating surface of the heat source device is matched with the shape of the bottom plate of the textile structure heat dissipator to be tested; and a fixation device for regulating the contact tightness of the textile structure heat dissipator to be tested and the heating surface of the heat source device. The present invention further provides a textile structure heat dissipator thermal resistance testing method. With the apparatus of the present invention, the disadvantages in the prior art are overcome, the requirements of the textile structure heat dissipator thermal resistance testing are met, the contact tightness of the textile structure heat dissipator and the testing apparatus is ensured through the transverse rod and screw rod matched fixation device, and with the heating surfaces having different curvature radii, the heat dissipating performances of the textile structure heat dissipator under different bottom plate buckling application states can be met.