35results about How to "Increase warm-up speed" patented technology

The invention relates to an air inlet grille control method and device and an engine management system. The air inlet grille control method comprises the steps that the current operation conditions of a vehicle are obtained, wherein the current operation conditions comprise the first current temperature of cooling liquid, the current vehicle speed, the current duty ratio of a pulse width modulation fan, the current on-off status of a fan and the current exhaust temperature; the target opening degree of an air inlet grille is determined according to the obtained current operation conditions of the vehicle and the unit angle, wherein the unit angle is the angle of each preset equally-divided part of the included angle between the minimum position when a motor is turned off and the maximum position when the motor is turned on; and the determined target opening degree of the air inlet grille is sent to the motor so as to enable the motor to adjust the opening degree of the air inlet grille according the received target opening degree. By adoption of the air inlet grille control method and device and the engine management system, the dynamic property and the fuel economy performance of the whole vehicle can be improved, and carbon emission is reduced.

The invention discloses a method for quickly heating a steam engine of a gas engine combined cycle unit in a cold state. On the bases of temperature overmeasure of the steam engine, an exhaust temperature of the gas engine, exhaust gas temperature of the gas engine and a starting state of the steam engine, a starting load parameter of the steam engine is calculated, and the starting load parameter of the steam engine is used for substituting for a starting temperature parameter of the steam engine. According to the starting load parameter and the starting temperature parameter of the steam engine, the steam engine, in the cold state, of the gas engine combined cycle unit is heated quickly. The method for quickly heating the steam engine of the gas engine combined cycle unit in the cold state has the advantages that heating speed of the steam engine can be increased efficiently, openness of a high-pressure governor valve is enlarged, the service life of the steam engine is prolonged, and load of a single gas engine can be reduced.

The invention provides a multi-mode temperature management system of a hybrid electric vehicle. The multi-mode temperature management system comprises an air conditioning system, a power battery temperature management system, a driving motor temperature management system and an engine temperature management system, wherein communication and disconnection among the air conditioning system, the power battery temperature management system, the driving motor temperature management system and the engine temperature management system are controlled through pipelines and valves. The multi-mode temperature management system is advantaged in that power battery temperature management modes are dynamically switched according to the real-time temperature of a power battery, driving motor temperature management modes are dynamically switched according to the real-time temperature of a driving motor, and engine temperature management modes are dynamically switched according to the real-time temperature of an engine, temperature management of multiple modes is achieved, the temperature management modes are more flexible, energy utilization efficiency is higher, and temperature control is more stable.

The invention provides a method and a device for controlling a piston cooling system. The method comprises the following steps: an acquiring step, namely acquiring parameters of an engine connected with the piston cooling system; and a judging step, namely if judging that the parameters meet preset conditions, controlling a piston cooling device control valve in the piston cooling system to be electrified, wherein if the piston cooling device control valve is closed, the piston cooling system does not inject oil. The method and the device can solve the problems in the prior art that aiming at a working condition of no need of oil injection, unreasonable injection is caused by adoption of a mechanical piston nozzle for injecting; control on the piston cooling system is more accurate, thus saving emission and oil consumption; and the engine warming-up speed is promoted, the frictional loss of the engine in a working condition with high speed and low load can be reduced, and piston knocking noise in idling of the engine is reduced.

The invention discloses a vehicle cooling system which comprises a radiator, a cylinder body, a cylinder cover, a flow control structure, a heater water return pipeline, an oil cooler water return pipeline, a cooler water return pipeline and a water pump. The flow control structure comprises a water temperature sensor, a control structure body and a main valve structure. According to the vehicle cooling system, the water temperature sensor sends water temperature signals of the heater water return pipeline, the oil cooler water return pipeline, the cooler water return pipeline and a water inlet pipeline of the radiator to the control structure body in time, and according to the water temperature signals, the control structure body flexibly controls the main valve structure to open or close all the pipelines, so that the situation that water flow branch flows in all the pipelines are flexibly controlled is realized, overall on-demand deployment is realized, and unnecessary energy consumption losses are avoided.

The invention discloses a cooling system of an automobile, which is connected with inner circulation pipelines of a cylinder body and a cylinder cover. The cooling system comprises a pump, a radiator, a thermolator and a connecting pipe, wherein the radiator comprises two independent radiating units which are respectively provided with a water inlet, and are commonly provided with a water outlet, the thermolator comprises a cylinder cover thermolator and a cylinder body thermolator, the water outlet of the pump is divided into two paths, wherein one path passes through the inner circulation pipeline of the cylinder body, then is connected with the water inlet of one independent radiating unit through the cylinder body thermolator, and the other path passes through the inner circulation pipeline of the cylinder cover, and is connected with the water inlet of the other independent radiating unit through the cylinder cover thermolator, and finally is connected with the water inlet of the pump through the water outlet of the radiator. The invention can ensure that an engine can work under rational temperature distribution, can improve the speed of a warming up, can ensure that the automobile can work at the high temperature under various working conditions, effectively cools the performance of the system, improves the fuel economy, and reduces the discharge.

The invention discloses a runner preheating cover and a runner preheating method. The runner preheating cover comprises a shell and a lining structure. When the shell is preheated, the face, close to a runner, of the shell is the first face, and the first face is provided with a cavity. The lining structure is located in the cavity of the shell. The lining structure internally comprises an electric heater used for generating heat for preheating the runner. The electric heater in the lining structure is used for heating the runner, the runner is preheated, the runner can be subjected to heat preservation through the lining structure and the shell, dissipation of excessive heat in the runner heating process is reduced, heat losses in the runner preheating process are reduced, the runner preheating speed can be increased, the runner preheating time is shortened, and resources and cost are saved. In addition, the electric heater is used for heating the runner, usage of open fire is avoided in the heating process, the service life of a heat preservation material is prolonged, the heat preservation material is prevented from being frequently replaced, garbage generation is reduced, and the runner preheating cover saves more energy and is more environment-friendly.

The invention provides an engine cooling system for a vehicle and the vehicle, and relates to the field of the vehicles. The engine cooling system for the vehicle comprises a water pump, a cylinder cover combustion chamber water jacket, a cylinder cover exhaust water jacket and a cylinder body water jacket; the cylinder cover exhaust water jacket and the cylinder body water jacket are connected in parallel between the water pump and the cylinder cover combustion chamber water jacket; the cylinder cover combustion chamber water jacket is provided with a cylinder cover combustion chamber water jacket exhaust side and a cylinder cover combustion chamber water jacket intake side; the cylinder cover combustion chamber water jacket is provided with at least two independent cylinder cover combustion chamber water channels communicating the cylinder cover combustion chamber water jacket exhaust side and the cylinder cover combustion chamber water jacket intake side; the cylinder cover exhaust water jacket is provided with a cylinder cover exhaust water jacket exhaust side and a cylinder cover exhaust water jacket intake side; and the cylinder cover exhaust water jacket is provided with at least two independent cylinder cover exhaust water channels communicating the cylinder cover exhaust water jacket exhaust side and the cylinder cover exhaust water jacket intake side. The invention also provides the vehicle comprising the engine cooling system. The performance of an engine can be greatly improved.

The invention belongs to the technical field of equipment or devices for preheating furnace burden, and particularly discloses a device for producing quick lime. The device for producing the quick lime comprises a furnace body. The middle of the furnace body is provided with a waste gas pipe. A sealing plate and a sliding plate are installed between the waste gas pipe and the furnace body. The sealing plate is fixedly sealed and connected with the furnace body and the waste gas pipe. The sliding plate is slidably sealed and connected with the furnace body and the waste gas pipe. The sliding plate is provided with a discharging part through which a material passes. The discharging part passes through the sealing plate and is slidably sealed and connected with the sealing plate. A first elastic component is installed between the sliding plate and the sealing plate. The waste gas pipe is provided with an air suction port. The side wall of the furnace body is provided with an air exhaust port. A feeding control mechanism for starting and stopping feeding is installed above the sliding plate. The discharging part is internally provided with a discharging control mechanism. The device for producing the quick lime aims to solve technical problems in the prior art that while a raw material is preheated, the water vapor in a waste gas encounters with the raw material in a lower temperature and the condensation occurs, so that humidity of the raw material is improved, and impurities in the waste gas are mixed with the raw material.

The invention relates to a rolling spraying machine, an intelligent air control method thereof, a device and a storage medium. A detection module for detecting the temperature is arranged in a roller and is in communication connection with a control module. The intelligent air control method comprises the following steps of preheating the roller, and conveying hot air into the roller through a first air supply pipe and a second air supply pipe at the same time; obtaining the real-time temperature, obtaining the real-time temperature in the roller through the detection module, and storing; judging the real-time temperature, obtaining the temperature threshold range in the roller, comparing the real-time temperature with the temperature threshold range, and if the real-time temperature is within the temperature threshold range, determining a first comparison result; otherwise, determining a second comparison result; repeatedly executing the step of acquiring the real-time temperature according to the first comparison result; executing the step of adjusting the real-time temperature according to the second comparison result; and adjusting the real-time temperature, and correspondingly adjusting the real-time temperature in the roller according to the second comparison result. The rolling spraying machine, the intelligent air control method thereof, the device and the storage medium provided by the invention have the effect of being beneficial to improving the quality of finished products of materials.

The invention discloses a preheating method for a molten salt tank of a thermal storage system of a photothermal power station. The preheating method comprises the steps that a molten salt tank preheating system is arranged, preheating temperature rise is carried out, temperature difference control is carried out, and preheating safety protection is carried out; a pipe port is reserved at the topof the molten salt tank, and a gas furnace is connected in through a temporary pipeline; the bottom of a chimney is sealed, a hole is formed in the lower end of the chimney, and the chimney is inserted into the bottom of the molten salt tank from the top of the molten salt tank or the interior of the reserved hole; exhaust gas of the gas furnace is collected into high-speed airflow to enter the molten salt tank and rotationally flows from top to bottom along the tank wall slowly, so that an aerodynamic field in the tank is disturbed, and the purpose of controlling the preheating temperature difference is achieved; preheating temperature rise control is regulated by a PLC of the gas furnace; and the PLC of the gas furnace and DCS are bridged, the molten salt tank is safely and reliably preheated to the salt injection temperature within a short time, and the safety of the preheating process is ensured.

The invention provides a warming method and a warming system of a steam turbine. The warming method comprises the following steps of adjusting a steam exhaust valve of the steam turbine to enable thesteam exhaust pressure of the steam turbine to reach a first pressure value; and adjusting a steam inlet valve of the steam turbine to enable the steam inlet pressure of the steam turbine to reach a second pressure value, wherein the ratio of the second pressure value to the first pressure value is greater than a threshold value. The warming method of the steam turbine can increase the warming speed of the steam turbine.

The invention provides a silicon-based thin film, a solar cell and a preparation method of the silicon-based thin film. The preparation method of the silicon-based thin film comprises the following steps: preheating a substrate; the preheated substrate is placed in a deposition chamber, hydrogen and inert gas are filled into the deposition chamber, glow discharge is triggered, then reaction gas is filled into the deposition chamber, and the silicon-based thin film is formed on the substrate through deposition. Before glow discharge, hydrogen and inert gas are introduced into a deposition chamber, and after glow is started, through interaction of the inert gas and hydrogen, the collision frequency of gas molecules is enhanced, and rich metastable atomic hydrogen is excited, so that the dangling bond density in the thin film is greatly reduced, the defect mode is reduced, and the quality of the silicon-based thin film is improved; the addition of the inert gas can accelerate the decomposition of the reaction gas, improve the utilization rate of the reaction gas and reduce the production cost. The silicon-based thin film is low in production cost and good in quality.

The invention relates to an integrated exhaust manifold type three-cylinder machine cooling water jacket which comprises a cylinder cover provided with an air intake side and an exhaust side. An exhaust throat and an exhaust port are formed in the exhaust side of the cylinder cover, and an exhaust manifold is further integrated between the exhaust throat and the exhaust port. A water inlet is formed in the front end of the cylinder cover, a water outlet is formed in the rear end of the cylinder cover, and a cooling water channel is formed between the water inlet and the water outlet. An exhaust side water jackets communicated to the cooling water channel are arranged at the upper end and the lower end of the exhaust manifold, and an air intake side water jacket communicated to the cooling water channel is arranged on the air intake side of the cylinder cover. By means of the cooling water jacket, the cooling uniformity on the exhaust side is improved, thermal cycle of an engine is improved, waste heat is used for preheating of a cabin, the engine warming speed is improved, friction of internal parts during cold starting is reduced, and oil consumption of the engine is reduced.

The invention discloses a control method, device and system for a piston cooling nozzle and electronic equipment. The method is applied to the vehicle, the vehicle at least comprises an engine and the piston cooling nozzle, and the method comprises the steps that it is detected that the engine is started, engine oil pressure in the engine is obtained, and when the engine oil pressure is larger than or equal to an engine oil pressure threshold value, the environment temperature of the environment where the vehicle is located is detected, so that opening and closing of the piston cooling nozzle are controlled according to environment temperature. The method at least solves the technical problem that the engine warming speed is low in the engine warming process through an existing method of the piston cooling nozzle.

An engine piston cooling device is used for solving the cooling problem of an engine in different operating conditions and comprises a control valve, a cylinder body main oil passage, a cylinder body auxiliary oil passage, a communicating oil passage, a cooling nozzle oil passage and a piston cooling nozzle assembly, wherein the one-way open / close of the control valve is controlled by sending the engine oil temperature, the control valve is installed at the tail of the communicating oil passage between the cylinder body main oil passage and the cylinder body auxiliary oil passage, the cylinder body main oil passage is communicated with an engine lubrication system element, and the cylinder body auxiliary oil passage is communicated with the piston cooling nozzle assembly through the cooling nozzle oil passage. According to the invention, the oil injection action is jointly controlled by the control valve and the pressure limiting valve of the piston cooling nozzle assembly, so as to ensure that the piston part can achieve the optimal cooling effect in different operating conditions of the engine.

The invention provides an internal combustion engine automobile multi-mode temperature management system. The system comprises an air conditioning system and an internal combustion engine temperaturemanagement system, wherein the air conditioning system can independently heat and refrigerate a compartment, and the internal combustion engine temperature management system can independently heat andrefrigerate an internal combustion engine. The multi-mode temperature management system is advantaged in that communication and disconnection of the air conditioning system and the internal combustion engine temperature management system are controlled through pipelines and valves, the multi-mode temperature management system dynamically switches the internal combustion engine temperature management modes according to the real-time temperature of the internal combustion engine, heat dissipation efficiency is higher, the engine warming speed is higher, and temperature management is more flexible.

The invention relates to an engine cooling system and a control method thereof. The engine cooling system comprises an engine heat dissipation mechanism and an engine degassing mechanism, wherein theengine heat dissipation mechanism comprises a temperature control valve, an engine water outlet pipeline connected with the temperature control valve, a radiator assembly connected with the engine water outlet pipeline, and an engine water inlet pipeline connected with the radiator assembly; the engine degassing mechanism comprises an engine degassing pipeline, a degassing chamber assembly connected with the engine degassing pipeline, a degassing chamber water outlet pipeline connected with the degassing chamber assembly, and a radiator degassing pipeline connected with a water inlet of the radiator assembly and the degassing chamber assembly; the radiator degassing pipeline is connected with the engine degassing pipeline through a three-way valve; a first stop valve is arranged on the engine water inlet pipeline; and a control valve for preventing reverse flow is arranged on the radiator degassing pipeline. By means of the engine cooling system and the control method thereof, the engine warming speed of an engine can be increased in the low-temperature starting process of the engine and the engine warming stage of the engine.

The invention discloses a method for quickly heating a steam engine of a gas engine combined cycle unit in a cold state. On the bases of temperature overmeasure of the steam engine, an exhaust temperature of the gas engine, exhaust gas temperature of the gas engine and a starting state of the steam engine, a starting load parameter of the steam engine is calculated, and the starting load parameter of the steam engine is used for substituting for a starting temperature parameter of the steam engine. According to the starting load parameter and the starting temperature parameter of the steam engine, the steam engine, in the cold state, of the gas engine combined cycle unit is heated quickly. The method for quickly heating the steam engine of the gas engine combined cycle unit in the cold state has the advantages that heating speed of the steam engine can be increased efficiently, openness of a high-pressure governor valve is enlarged, the service life of the steam engine is prolonged, and load of a single gas engine can be reduced.

The invention discloses a treatment device for organic waste gas, which includes an adsorption waste gas enrichment runner, a heat-removing component for desorption, a regenerative catalytic combustion furnace for treating the desorption waste gas of the concentration runner, and an exhaust chimney. The first reverse circulation tube and the second reverse circulation tube are used to recoil the regenerative catalytic combustion furnace to improve the activity of the catalyst, thereby eliminating the need for frequent replacement of the catalyst and prolonging the service life of the catalyst.

The invention discloses a cooling system of an automobile, which is connected with inner circulation pipelines of a cylinder body and a cylinder cover. The cooling system comprises a pump, a radiator, a thermolator and a connecting pipe, wherein the radiator comprises two independent radiating units which are respectively provided with a water inlet, and are commonly provided with a water outlet,the thermolator comprises a cylinder cover thermolator and a cylinder body thermolator, the water outlet of the pump is divided into two paths, wherein one path passes through the inner circulation pipeline of the cylinder body, then is connected with the water inlet of one independent radiating unit through the cylinder body thermolator, and the other path passes through the inner circulation pipeline of the cylinder cover, and is connected with the water inlet of the other independent radiating unit through the cylinder cover thermolator, and finally is connected with the water inlet of thepump through the water outlet of the radiator. The invention can ensure that an engine can work under rational temperature distribution, can improve the speed of a warming up, can ensure that the automobile can work at the high temperature under various working conditions, effectively cools the performance of the system, improves the fuel economy, and reduces the discharge.

The invention discloses a vehicle cooling system which comprises a radiator, a cylinder body, a cylinder cover, a flow control structure, a heater water return pipeline, an oil cooler water return pipeline, a cooler water return pipeline and a water pump. The flow control structure comprises a water temperature sensor, a control structure body and a main valve structure. According to the vehicle cooling system, the water temperature sensor sends water temperature signals of the heater water return pipeline, the oil cooler water return pipeline, the cooler water return pipeline and a water inlet pipeline of the radiator to the control structure body in time, and according to the water temperature signals, the control structure body flexibly controls the main valve structure to open or close all the pipelines, so that the situation that water flow branch flows in all the pipelines are flexibly controlled is realized, overall on-demand deployment is realized, and unnecessary energy consumption losses are avoided.

The invention provides a multi-mode temperature management system of a hybrid electric vehicle. The multi-mode temperature management system comprises an air conditioning system, a power battery temperature management system, a driving motor temperature management system and an engine temperature management system, wherein communication and disconnection among the air conditioning system, the power battery temperature management system, the driving motor temperature management system and the engine temperature management system are controlled through pipelines and valves. The multi-mode temperature management system is advantaged in that power battery temperature management modes are dynamically switched according to the real-time temperature of a power battery, driving motor temperature management modes are dynamically switched according to the real-time temperature of a driving motor, and engine temperature management modes are dynamically switched according to the real-time temperature of an engine, temperature management of multiple modes is achieved, the temperature management modes are more flexible, energy utilization efficiency is higher, and temperature control is more stable.

The squish flow combustion chamber of the two-stroke engine is good in cooling effect and comprises a cylinder body, a combustion cavity is formed in the cylinder body, a cylinder cover is fixedly installed on the top of the cylinder body, a first heat dissipation ring is arranged on the surface of the cylinder cover in a sleeved mode, and a second heat dissipation ring is arranged on the surface of the cylinder body in a sleeved mode. A cooling liquid circulation channel is formed in the cylinder body and surrounds the combustion cavity, and the left side and the right side of the top of the cylinder cover are fixedly connected with a liquid inlet pipe and a liquid outlet pipe correspondingly. The squish flow combustion chamber has the advantage of being good in cooling effect, and solves the problems that in the using process of an existing squish flow combustion chamber of a two-stroke engine, a large amount of heat on the combustion chamber cannot be conveniently and effectively taken away, local overheating is easily caused, the overall cooling efficiency is reduced, the engine is difficult to keep working within a proper temperature range, and the service life is prolonged. And the service life is shortened.

The present invention discloses a glass bottle heating device, which relates to the field of glass bottle processing technology, and comprises a frame, a back plate is fixedly installed at the top edge of the frame, a lifter is installed at the top side of the back plate, the bottom of the lifter contacts the top of the rotating table, and a limiter is installed around the top of the rotating table. The glass bottle heating device can limit and clamp the glass bottle to be processed through the setting of the limiter, and cooperate with the rotating table to make the glass bottle rotate under the fixation of the limiter, and then use the lifter to move the preheater downward to uniformly preheat the bottle mouth area of ​​the glass bottle to reduce local temperature differences and prevent the glass bottle from breaking due to thermal stress in subsequent processing. In addition, the use of annular heating rather than single-direction heating can ensure that heat uniformly surrounds the bottle mouth from multiple angles, reduce the formation of hot spots, and thus improve the heating safety and preheating effect of the glass bottle.

The invention relates to low-temperature welding equipment and process for a high-strength steel part, and relates to the technical field of welding. The device comprises a preheating device and a welding device, the preheating device is provided with a preheating channel, a bottom supporting roller and a side supporting roller are arranged in the preheating device, and stable conveying and side supporting of steel parts are achieved through conveying drive and telescopic drive. And air storage cavities and air spraying holes are formed in the side supporting rods, rotary air outlet can be achieved, and the preheating effect is enhanced. In addition, a heating cavity is formed in the bottom supporting roller and matched with a bottom heat adjusting assembly, and uniform preheating is ensured. According to the process, by optimizing the preheating and welding steps, the welding quality and efficiency are improved, the welding defects are reduced, and the process is suitable for low-temperature welding of high-strength steel parts.

The invention relates to an air inlet grille control method and device and an engine management system. The air inlet grille control method comprises the steps that the current operation conditions of a vehicle are obtained, wherein the current operation conditions comprise the first current temperature of cooling liquid, the current vehicle speed, the current duty ratio of a pulse width modulation fan, the current on-off status of a fan and the current exhaust temperature; the target opening degree of an air inlet grille is determined according to the obtained current operation conditions of the vehicle and the unit angle, wherein the unit angle is the angle of each preset equally-divided part of the included angle between the minimum position when a motor is turned off and the maximum position when the motor is turned on; and the determined target opening degree of the air inlet grille is sent to the motor so as to enable the motor to adjust the opening degree of the air inlet grille according the received target opening degree. By adoption of the air inlet grille control method and device and the engine management system, the dynamic property and the fuel economy performance of the whole vehicle can be improved, and carbon emission is reduced.

The invention belongs to the technical field of equipment or devices for preheating furnace burden, and particularly discloses a device for producing quick lime. The device for producing the quick lime comprises a furnace body. The middle of the furnace body is provided with a waste gas pipe. A sealing plate and a sliding plate are installed between the waste gas pipe and the furnace body. The sealing plate is fixedly sealed and connected with the furnace body and the waste gas pipe. The sliding plate is slidably sealed and connected with the furnace body and the waste gas pipe. The sliding plate is provided with a discharging part through which a material passes. The discharging part passes through the sealing plate and is slidably sealed and connected with the sealing plate. A first elastic component is installed between the sliding plate and the sealing plate. The waste gas pipe is provided with an air suction port. The side wall of the furnace body is provided with an air exhaust port. A feeding control mechanism for starting and stopping feeding is installed above the sliding plate. The discharging part is internally provided with a discharging control mechanism. The device for producing the quick lime aims to solve technical problems in the prior art that while a raw material is preheated, the water vapor in a waste gas encounters with the raw material in a lower temperature and the condensation occurs, so that humidity of the raw material is improved, and impurities in the waste gas are mixed with the raw material.

The invention discloses an air cylinder cover water sleeve structure capable of improving cold-starting performance of an engine, and an engine cooling system. The air cylinder cover water sleeve structure comprises an air cylinder cover water sleeve body, an air cylinder cover water sleeve water-outlet chamber, an engine oil cooler water-outlet hole and an engine body water outlet are formed in the air cylinder cover water sleeve body, the engine oil cooler water-outlet hole and the engine body water outlet communicate with the air cylinder cover water sleeve water-outlet chamber, a buffer chamber is formed between the air cylinder cover water sleeve water-outlet chamber and the engine oil cooler water-outlet hole, one end of the buffer chamber communicates with the air cylinder cover water sleeve water-outlet chamber, and the other end of the buffer chamber communicates with the engine oil cooler water-outlet hole. The air cylinder cover water sleeve structure is simple in structure,and the two-way flow of cooling liquid heated by a small circulation pipeline can be reasonably distributed, so that the more cooling liquid used for heating an engine body can flow into the engine body.

The invention discloses a lead-free high-temperature coated solder tip, and relates to the technical field of solder tips. The lead-free high-temperature coated solder tip comprises a solder tip body,a fixed seat and a sliding block; a plurality of first grooves are formed in one surface of the solder tip body; a plurality of fixed blocks are fixed to the circumferential side face of the solder tip body; a plurality of second grooves are formed in one surface of a chisel body; a penetrating hole is formed in one surface of the fixed seat; a channel is formed in one surface of the fixed seat;a heat-insulation layer is fixed to one surface of the fixed seat; a soldering iron core is fixed to one surface of the fixed seat; a plurality of binding posts are fixed to one surface of the soldering iron core; a third groove is formed in one surface of the soldering iron core; a plurality of heat conducting columns are fixed to the inner surface of the third groove; the heat conducting columnsare matched with the first grooves; and the channel is matched with the sliding block. By improving contact between the solder tip body and the soldering iron core, the preheating speed of the soldertip body is increased, and the work efficiency is improved; and by forming the grooves in the surface of chisel body of the solder tip, the tin-absorbing ability of the solder tip is improved, the service life of the solder tip is prolonged, and the defect that the temperature of an existing solder tip body is increased slowly is overcome.