63results about How to "Increase feed rate" patented technology

The invention discloses a waste mulching film roll cutting control method which is applied to a waste mulching film roll cutting machine, the cutting machine comprises a mulching film roll pushing mechanism, a cutting mechanism and a detection system, the mulching film roll pushing mechanism comprises a chain and a plurality of cross rods installed on the chain, and push plates are fixed to the cross rods; the cutting mechanism comprises a cutting knife, a motor and a lifting driving unit; the detection system comprises a position sensor; the method comprises the following steps: acquiring position data of a cross rod on a chain through a position sensor; based on the position data, the lifting driving unit is controlled to operate so that the height of the cutting knife can change regularly. By monitoring the cutting torque, on one hand, the feeding speed can be increased when the cutting torque is low, the cutting speed of the waste mulching film roll can be increased, and on the other hand, the feeding speed can be reduced when the cutting torque is high, so that cutting safety is guaranteed. On the other hand, the situation that hard sundries exist in the mulching film roll, and consequently cutting torque rises instantly can be prevented, and shutdown protection can be conducted in time to prevent a cutting knife from being damaged.

The invention relates to the field of numerical control machining, and discloses a bevel edge machining method based on a five-axis numerical control system, which comprises the following steps: (1) fixing a workpiece: mounting the workpiece on a rotary worktable of the five-axis numerical control system, fixing the workpiece through a clamp, and ensuring that the workpiece can be kept stable in the machining process through a rotary shaft of the five-axis numerical control system; (2) inputting machining parameters: inputting a three-dimensional model of the workpiece and related parameters of bevel edge machining in a five-axis numerical control system; (3) generating an initial path: based on the three-dimensional model of the workpiece, generating an initial machining path through a five-axis numerical control system, and calculating a five-axis linkage movement track and a tool posture of the tool; through a self-adaptive path optimization algorithm of the workpiece surface curvature and the area complexity, the step pitch is automatically shortened in a complex bevel edge area so as to improve the machining precision, machining of a complex curved surface and an irregular bevel edge can be better adapted, it is ensured that a tool is in the optimal machining state all the time, and unnecessary path redundancy is reduced.

The utility model discloses a cresol refining device which comprises a crude cresol tank, an outsourcing crude cresol tank, a light component removal tower, a tail gas return pipe, a rectifying tower and a product tank, the outsourcing crude cresol tank and the crude cresol tank are both fixed on the ground, one side of the outsourcing crude cresol tank and one side of the crude cresol tank are provided with a conveying pump, outsourcing crude cresol and crude phenol are conveyed into the light component removal tower through the conveying pump, and the tail gas return pipe is connected with the rectifying tower. The light component removal tower is fixed on the ground, a condenser is arranged above the light component removal tower, the condenser refluxes condensed materials, a tail gas return pipe is arranged above the light component removal tower, the tail gas return pipe extends downwards to enter the lower part of the light component removal tower, the light component removal tower is connected with the rectifying tower through a conveying pipe, the rectifying tower is fixed on the ground, and a condenser is arranged above the rectifying tower. A discharging pipe of the rectifying tower is connected with the product tank, the product tank is fixed on the ground, and the crude phenol tank and the outsourcing crude cresol tank are the same in structure. The device is reasonable in design; and the tail gas return pipe can convey a part of hot gas into the light component removal tower so as to improve heat recovery.

The invention provides a low-odor ratproof extrusion-grade polypropylene material, a preparation method and an electrical material, and belongs to the field of polypropylene materials. The polypropylene is used as a main body, the flexibilizer is used for modifying the polypropylene, the used flexibilizer is linear low-density polyethylene and polyolefin elastomer, the melt strength of the flexibilizer is higher, the flexibilizer and the polypropylene are all olefins and have good compatibility, the price of the low-density polyethylene is lower, and the price of the polyolefin elastomer is higher, so that the low-density polyethylene, the polyolefin elastomer and the low-density polyethylene are combined, and the polypropylene is modified. According to the low-odor rat-proof extrusion-grade polypropylene material, the impact resistance of the polypropylene material is enhanced while the production cost is guaranteed, meanwhile, in order to improve the flame retardance of the low-odor rat-proof extrusion-grade polypropylene material, the flame retardant and the mineral substances are added, and the rat-proof agent is further added to prevent the material from being bitten by rats and insects and causing damage to the material; in addition, a special thread element is used in the double-screw extruder, so that the feeding amount is increased, the shearing heat is reduced, the melt temperature is reduced, and the odor grade of the material is reduced.

The invention discloses an industrial automation control method and system based on wireless remote processing, and relates to the technical field of machining, the system comprises a numerical control machine tool, a vibration improvement detection module, a speed adjusting module and a power supply, the numerical control machine tool comprises a plurality of sliding tables, and the vibration improvement detection module is used for detecting the vibration amplitude of each sliding table; the speed adjusting module is used for adjusting the lubricating oil filling flow speed and the feeding speed of each sliding table, the power source is used for providing electric energy when the thickness of an oil layer is adjusted, and the vibration improvement detection module comprises a vibration amplitude sensor, a vibration improvement analysis module, a timing module, a lubricating oil filling flow speed detection module and a feeding speed detection module. The vibration amplitude sensor is used for detecting the vibration amplitude of a single sliding table, the vibration improvement analysis module is used for analyzing the vibration amplitude and judging whether speed adjustment and pause work need to be carried out or not, and the device has the advantage of being high in efficiency.

The invention discloses a flow field self-sealing type blade array trepanning electrolytic machining device and method, an elastic self-sealing assembly is adopted between a cathode assembly and an anode assembly, in a self-sealing type flow field, when the cathode assembly is fed, an array cathode machines a plurality of blades at a time at the same time, and the machining efficiency is improved. The elastic self-sealing assembly is tightly pressed on the clamp while the cathode assembly is fed, a closed flow field is formed, it is guaranteed that electrolyte of each blade is sufficient through the liquid inlet channels distributed in an array mode, and the electrolyte flows through each blade machining area and finally flows out through the liquid outlet channel in the center of the base. The problems that during multi-blade machining, the flow field is poor, liquid lacking is prone to occurring, and obvious flow lines often appear on the surfaces of parts are solved.

The invention relates to the field of special ceramic blank sheet production, in particular to a burr-free pressure-sensitive ceramic blank sheet production method which comprises the following steps: sequentially mixing and ball-milling raw materials of a pressure-sensitive ceramic blank sheet to form mixed raw material powder; introducing the mixed raw material powder into a granulation forming machine to output test mixed particles; collecting the vertical movement rate of the test mixed particles; determining a granulation adjustment mode according to the vertical movement rate of the test mixed particles; performing actual molding on the mixed raw material powder according to the granulation adjustment mode to output actual mixed particles; controlling pressing equipment to press the actual mixed particles according to the granulation adjustment mode so as to form a target blank sheet with a corresponding shape; and cleaning the flash to output a burr-free finished product of the pressure-sensitive ceramic blank sheet. According to the invention, the production quality and the production efficiency of the burr-free pressure-sensitive ceramic blank sheet are improved.

The present invention provides a high-speed grinding method for a single crystal high-temperature alloy turbine blade. According to the minimum high-speed grinding wheel linear speed and the minimum diameter of the grinding wheel, the minimum rotation speed of the grinding wheel shaft is obtained based on the linear speed formula; based on the ratio of the roller to the grinding wheel linear speed and the minimum diameter of the roller shaft, the minimum value of the roller linear speed is obtained, and the minimum rotation speed of the roller is obtained; according to the abrasive parameters and the minimum rotation speed of the grinding wheel shaft, based on the single abrasive grain cutting thickness calculation formula, the initial grinding wheel feed speed is obtained, and multiple tests are carried out based on this and the minimum rotation speed of the roller; the processed single crystal blade is inspected through surface quality detection, the initial grinding wheel feed speed is adjusted, and the final grinding wheel feed speed is obtained. The present application adopts a high-speed grinding process for single crystal blades, and through equipment selection, high-speed grinding wheel selection, processing parameter formulation and surface quality evaluation, the grinding efficiency and surface quality of the single crystal material turbine blade are improved. The grinding efficiency of the present application is improved by more than three times, the occurrence of surface ablation of parts is avoided, and the processing quality of parts is improved.

The invention discloses a control system and a control method for 3D hard metal processing equipment, and the system comprises a processing unit which is configured to receive data from a sensor; the storage unit is used for storing a preset processing parameter set; the algorithm module is used for executing weighting calculation so as to dynamically adjust parameters in the processing parameter set based on the physical characteristics; and the output interface is used for transmitting the adjusted processing parameters to an execution mechanism of the 3D hard metal processing equipment. According to the invention, the data from the sensor can be received, and the processing parameters can be dynamically adjusted according to the data, so that the processing process is optimized. By introducing a weight distribution unit and weighting calculation based on historical data, the flexibility and adaptability of the system are improved, and the machining quality and efficiency are ensured. In addition, the user-friendly interface design enables the user to conveniently input or select the type of the to-be-processed material and the expected processing effect, and the usability and flexibility of the system are further improved.

The utility model provides performance improvement energy-saving equipment based on a sand sucker, and relates to the technical field of improvement energy-saving equipment, the performance improvement energy-saving equipment comprises a sand storage cylinder and a lifting channel, the upper part of the sand storage cylinder is provided with an upper fixing sleeve, the upper fixing sleeve is sleeved with a feed hopper, the upper part in the sand storage cylinder is provided with an upper screen cylinder, and the lower part of the sand storage cylinder is provided with a discharge hopper; a discharging pipe opening is formed in the lower portion of the discharging hopper, vibration motors are installed on the left portion and the right portion of the outer ring face of the discharging hopper, a lifting channel is connected to the right portion of the discharging hopper, a supporting frame is fixed to the middle of the lower portion of the lifting channel, and the supporting frame is fixed to a supporting leg on the right side. And a rotating shaft rotationally moves in the center in the lifting channel. According to the utility model, the feeding quantity is large, the sand is secondarily filtered through vibration, the filtered fine sand is easier, smoother and faster to lift, the situation that the sand is slowly lifted and conveyed due to the coarse sand is avoided, and the device is more energy-saving, efficient and practical.

The invention relates to the field of sofa production, in particular to a sponge shredding machine for sofa production. An existing sponge shredding machine has the defects that sponge fragments are prone to being clamped at a feeding port, meanwhile, a material crushing roller is complex to clean, the working efficiency is low, the shredded sponge fragments are inconvenient to screen, and the size of the shredded sponge fragments does not meet the use standard easily. A sponge shredding machine for sofa production comprises a supporting frame. The supporting frame is fixedly connected with a box body, the top of the box body is fixedly connected with a feeding hopper, and the feeding hopper is communicated with the box body. Firstly, a worker starts a servo motor and puts a sponge block into a box body through a feeding hopper, the sponge block is pushed through two swing frames, the feeding speed can be increased, the situation that sponge scraps are clamped below the feeding hopper can be prevented, meanwhile, two brush plates can clean sponge scraps attached to two material crushing rollers respectively, and the sponge scraps can be cleaned through the two brush plates; therefore, the sponge shredding efficiency can be improved.

The invention relates to the technical field of sludge drying equipment, in particular to sludge treatment spiral dewatering, drying and smashing equipment which comprises a supporting part, a dewatering part and a feeding part, the supporting part comprises a support, the dewatering part is arranged above the support and comprises a machine shell, a conical net barrel is horizontally fixed in the machine shell, and the conical net barrel is arranged above the support. A conical net barrel is arranged in the machine shell, a discharging opening is formed in the upper side of the feeding end of the conical net barrel in a penetrating mode, a feeding piece is vertically arranged on the top face, close to the upper portion of the discharging opening of the conical net barrel, of the machine shell in a penetrating mode and comprises a feeding frame, the feeding frame is fixed to the top face of the machine shell in a penetrating mode, the bottom end of the feeding frame is inserted into the discharging opening of the conical net barrel, and a material stirring frame box is inserted into the top of the feeding frame; a frame plate is horizontally fixed on the bottom surface of the stirring frame box and is used for filtering large-volume sludge blocks into the feeding frame. According to the invention, a pre-screening and two-stage crushing feeding pretreatment system is designed, so that the risk of material blockage is eliminated from the source.

The invention discloses low-viscosity titanium dioxide slurry and a production method thereof. The production method comprises the following steps: S1, preparing a dispersing agent; s2, desalted water is added into a pulping tank, then calcined and crushed titanium dioxide is added for pulping, and the dispersing agent in the S1 is stirred for 10-20 minutes; and S3, adding a defoaming agent and supplementing water into the titanium dioxide slurry prepared in the S2 while stirring, so that the concentration of the titanium dioxide slurry is 1,000-1,200 g / l, continuously stirring for 5-25 minutes, and sanding to obtain the titanium dioxide. The dispersing agent and the defoaming agent are added in the pulping process of the titanium dioxide slurry, and the slurry viscosity is greatly reduced when the concentration of the titanium dioxide sanding slurry is increased, so that the feeding amount of the titanium dioxide slurry is increased during sanding, and the working efficiency of a sand mill is improved.

The utility model discloses a kind of molluscicide raw material oil tea seed cake crushing devices, including pulverizer, the side of pulverizer is connected with feed hopper, multiple swing rods are arranged in parallel in feed hopper, swing rod and the bottom of feed hopper inner wall are rotationally connected by fixed pivot, the discharge port end of swing rod away from feed hopper is provided with the curved portion that upwards bending straddles feed hopper side wall, the curved portion lower end of multiple swing rods is rotationally connected with the upper surface of movable rod.The utility model is set swing rod in the front and back swing of feed hopper inner wall bottom, promotes the meal seed cake that has been roughly crushed in the discharge of feed hopper, driving motor is speed reduction servo motor, large turntable is rotated by pinion, realizes the effect of deceleration, turntable utilizes eccentric shaft, connecting groove, swing arm and movable rod simultaneously drive multiple swing rods that are set in up-down staggered manner to swing in front and back, to reach the effect of promoting discharge and not too fast, the purpose of limitedly improving the feed speed of molluscicide raw material oil tea seed cake crushing device is realized.

A press-fit assembly mechanism for a double-face piston of an automobile shock absorber comprises a press-fit device, the press-fit device comprises a pressing cylinder and an objective table, the pressing cylinder is arranged over the objective table, the pressing cylinder is provided with a pressing head, rotating disc assemblies are arranged on the two sides of the objective table, each rotating disc assembly comprises a rotating shaft, an objective disc, a motor and a coupler, the objective disc is connected with the upper portion of the rotating shaft, and the motor is provided with a motor shaft; the rotating shaft is connected with a motor shaft through a coupler, an angle visual detection module for detection is arranged on the upper portion right corresponding to the rotating disc assemblies, and material conveying mechanical arms are arranged on the outer sides of the two rotating disc assemblies. According to the utility model, after the angles of the first piston and the second piston are adjusted to reach the preset positions through the cooperation of the angle visual detection module and the turntable assembly, the first piston and the second piston are placed on the objective table by the two material conveying manipulators to be pressed, so that the pressing precision is improved, the product quality is improved, and the production efficiency is improved. And the automation level is improved, so that the production efficiency is improved.

The utility model provides a feeding device for sulfur combustion. The feeding device comprises a feeding barrel with two closed ends, a driving motor is arranged at one end of the feeding barrel, a spiral conveying shaft arranged in the feeding barrel is arranged on an output shaft of the driving motor, a discharging pipe is arranged at the top of the feeding barrel, and a smashing box used for smashing sulfur is arranged at the top of the discharging pipe. A connecting groove is formed in the bottom of the feeding cylinder, a filter screen used for filtering sulfur is arranged at the bottom of the connecting groove, an air guide plate arranged below the filter screen is arranged on the side wall of the feeding cylinder, a flow guide channel is formed between the inner wall of the air guide plate and the side wall of the filter screen, and a plurality of air guide pipes are arranged on the side, away from the discharging port, of the air guide plate; the top of the feeding cylinder is provided with a plurality of nozzles which incline downwards towards the direction of the discharging port and are communicated with the upper side of the inner wall of the feeding cylinder, the top of the feeding cylinder is provided with an air blowing assembly used for supplying air to the multiple nozzles and the multiple air guiding pipes, and the sulfur particle and powder separating device is reasonable in structure, convenient to separate particle and powder sulfur and high in separating efficiency.

The multi-screw plastic extruder comprises a base, a single-screw cylinder and a double-screw cylinder, heating cylinders are arranged on the outer wall of the single-screw cylinder and the outer wall of the double-screw cylinder, the tail of the single-screw cylinder is communicated with the head of the double-screw cylinder, a feeding port is formed in the head of the single-screw cylinder, and a discharging port is formed in the tail of the double-screw cylinder. An extrusion opening is formed in the tail portion of the double-screw barrel, a first screw is arranged in the single-screw barrel, two second screws are arranged in the double-screw barrel, and driving assemblies are arranged on the single-screw barrel and the double-screw barrel and used for driving the screws. And the output is improved while the plasticizing effect is not influenced, so that the application range of the extruder is wider.

The invention relates to the technical field of wastewater treatment, in particular to an electroplating nickel-chromium wastewater treatment device which comprises a sewage tank, a water suction pump is fixedly connected to the upper surface of the inner wall of the bottom of the sewage tank, one end of the water suction pump is fixedly connected with a door-shaped pipeline, and the other end of the door-shaped pipeline extends into a flocculation tank. Four square columns are fixedly connected to the four corners of the lower surface of the flocculation tank, stirring assemblies are fixedly connected to the upper surfaces of the tank walls of the two sides of the flocculation tank, and one end of the bottom of each stirring assembly is connected with an anti-condensation assembly in a meshed mode. According to the nickel-chromium electroplating wastewater treatment device, the water pump is matched with the flocculation basin, the sedimentation basin and the filter press, metal impurities such as nickel and chromium contained in wastewater are sequentially neutralized, stripped and filtered, the site requirement of the wastewater treatment device can be reduced through flow matching, and the production requirements of many related industries such as chemical engineering, metal or sewage processing plants are met; operation is convenient, and efficiency is high.

The utility model relates to a silicon carbon negative electrode material drying device which comprises a drying box, a drying tower arranged in the drying box and a driving mechanism used for driving materials to be transferred on the drying tower. The two drying towers are arranged in a spaced mode, a feeding hopper and a discharging pipe are arranged at the top and the bottom of each drying box respectively, the feeding hopper is located between the two drying towers, a connecting frame is arranged in the feeding hopper and extends into the drying box, and a conical material distributing plate is arranged at the end, extending into the drying box, of the connecting frame. The edge of the material distributing plate extends to the position over the two drying towers. According to the utility model, the design of double drying towers is adopted, and materials enter from the feeding hopper and uniformly fall onto the two drying towers under the action of the conical material distribution plate, so that the two drying towers can realize effective drying, the feeding quantity is further improved, and continuous, massive and efficient drying of silicon-carbon negative electrode materials is realized.

The present invention relates to the technical field of cooling and shaping, and specifically discloses a rubber sealing strip cooling and shaping device, comprising a cooling water trough for cooling a U-shaped rubber strip, wherein an air jet shaping unit and an anti-deformation feeding unit are arranged in the cooling water trough, wherein the air jet shaping unit comprises a shaping component and an air jet component for jetting air into the shaping component, wherein the wall of a shaping tube is cooled by cold air, and when the U-shaped rubber strip is covered and attached to the surface of the shaping tube, the temperature of the surface of the shaping tube is transferred to the U-shaped rubber strip after preliminary shaping, thereby further cooling and shaping the U-shaped rubber strip, and at the same time, the cold air ejected through the air jet hood and the air jet hole directly acts on the surface of the U-shaped rubber strip to enhance the cooling effect, and through the wrapping effect of the U-shaped rubber strip, it is ensured that the cold air fully contacts and cools the U-shaped rubber strip, thereby achieving further jet cooling of the U-shaped rubber strip, thereby greatly improving the cooling and shaping efficiency and effect of the U-shaped rubber strip.

The application discloses a reciprocating wire-cut electric spark wire-cutting inter-electrode chip removal device and method in the technical field of electric discharge machining, and aims to solve the problems of the prior art, such as difficultly greatly improving cutting efficiency, and easily producing burn marks on the surface of a workpiece when cutting a large amount of energy, and the like, and the device comprises a jet system, a liquid supply system and a control system. In the jet chip removal period of the discharge interval, the working liquid system is turned off, high-pressure airflow is sprayed into the machining area in the cutting gap of the workpiece, the etching products remaining in the cutting gap are blown out in time, and the heat generated by the discharge is taken away. The control system controls the jet system and the liquid supply system to work alternately and cyclically during the discharge, and displays the inter-electrode chip removal condition in the upper computer interface in real time. The application adopts grouped pulse discharge and jet chip removal during the discharge interval, simultaneously improves the cutting efficiency and the surface quality of the workpiece, and is beneficial to reducing the surface damage of the electrode wire.

This invention discloses a rapid deep peak-shaving system and method for co-firing biomass in a coal-fired circulating fluidized bed, belonging to the field of fuel combustion technology. This invention controls in-furnace combustion by adjusting the biomass co-firing ratio and feeding position, thereby improving the response rate under varying loads. It utilizes a bed material storage and conveying system to recycle the bed material in the furnace, recover the sensible heat of high-temperature ash slag, and control the material concentration and circulation loop stability during load changes. Furthermore, this invention introduces heated, clean, low-oxygen flue gas into the furnace, suppressing the formation of excessive nitrogen oxides and facilitating bed temperature stability during rapid load changes.

The utility model belongs to solid -liquid separation filter press equipment technical field, concretely relates to a kind of bidirectional quick feeding filter plate. Including filter plate body, the surface of both sides of filter plate body is respectively provided with filter chamber, and the bottom surface of filter chamber is provided with mesh filter liquor tank, and the periphery of filter chamber inside filter plate body is provided with manifold, and manifold is communicated with filter chamber through several manifold holes, and the corner of filter plate body is provided with the water outlet that is communicated with manifold, and the upper portion of filter plate body is located at the both sides of filter chamber and is provided with the feed hole that is penetrated through filter plate body, and the lower portion of filter plate body is located at the both sides of filter chamber and is provided with the feed channel hole that is penetrated through filter plate body, and feed boot is mounted in feed hole, and feed boot is used to guide the filtrate in feed hole into filter chamber. The utility model's bidirectional feeding design greatly shortens material flow process, reduces flow resistance, and can improve feed speed under the same pumping power.

The present application relates to a new type of pressure suction type solid-liquid separator and its coal slime water treatment system and method. In order to overcome the defects of the prior art. The new type of pressure suction type solid-liquid separator includes a belt vacuum filter, a pressurizing machine, a first feeding tank, a filter cake turnover mechanism and a second feeding tank. The filter cake turnover mechanism includes a plurality of plow-shaped plates and a crossbeam. Each plow-shaped plate is attached to the upper surface of the filter cloth. A vertical plate is connected to the middle of each plow-shaped plate. The top of the vertical plate is fixed to the crossbeam. The filter cake coming from the upstream of the filter cake turnover mechanism moves with the filter cloth. When passing through the filter cake turnover mechanism, all or part of the filter cake passes through the front end of each plow-shaped plate and turns over under the guidance of the plow-shaped plate. After turning over, the filter cake is mixed with the feed of the second feeding tank and enters the pressure suction dewatering area. The present application can greatly increase the slurry feed quantity, improve the filter water efficiency, reduce the equipment and accidents, and reduce the power consumption, and is suitable for use in coal preparation plants.

This invention belongs to the field of CNC machine tool technology, specifically providing a topology-optimized right-angle milling head housing for a CNC boring and milling machine and a method thereof. The housing includes a ram connecting part, a right-angle rotating milling head connecting part, and a transition part connecting the ram connecting part and the right-angle rotating milling head connecting part. The ram connecting part includes a tapered cylinder with end plates at both ends. A plurality of connecting posts are provided between the two sets of end plates, and threaded holes are provided through the connecting posts. The optimized milling head housing exhibits reduced weight and significantly improved static and dynamic characteristics.

The utility model relates to the technical field of milling cutters, and discloses a double-edge PCD cutter which comprises a cutter handle, two spirally-rising cutting edges are fixedly connected to the top of the cutter handle, the tops of the two cutting edges are coated with hard coatings, a first cooling liquid spraying hole is formed between the two cutting edges, and a second cooling liquid spraying hole is formed between the two cutting edges. A second cooling liquid spraying hole and a third cooling liquid spraying hole are formed in the lower ends of the two blades correspondingly, a mounting clamping shaft is fixedly connected to the lower end of the side face of the cutter handle, the bottom of the cutter handle is of an open structure and provided with a threaded groove, the bottom of the cutter handle is in threaded connection with a mounting base, and a cooling liquid channel is formed in the top of an inner cavity of the cutter handle. The tool bit is coated with the hard coating, the sharpness and the precision of the tool can be kept for a long time, cooling liquid can be sprayed to the tool bit in a faster and larger-area mode through the special cooling liquid spraying holes, and the heat dissipation efficiency of the cooling liquid is improved when the tool bit works.