When the air is good, the vacuum state can be maintained for a long time. I habitually brake several times before departure. If there is an abnormality, the vacuum booster that is started obtains the vacuum guide source from the intake duct of the New Car engine and stores it in the vacuum tank. If it is found that the vacuum booster cannot work properly, it is necessary to check the vacuum booster. When there is no fault, in order to avoid damage to the booster, do not dismantle the vacuum booster casually. If the vacuum booster is damaged, it needs to be replaced as a whole. For the braking system using a vacuum booster. Usually, the brake pedal is stepped on several times with the force used when braking. If there is no change in each stroke, it means that the vacuum booster or vacuum tube has air leakage and needs to be repaired. When the Fuel Car engine is not working, the brake pedal is generally stepped on several times with the force used when braking to ensure that the pedal stroke does not change, and then put it in the position of the brake pedal and start the Fuel Car engine. At this time, the pedal height drops slightly, which means that the vacuum booster works well. Step on the brake pedal when the New Car engine is working, then turn off the New Car engine and keep it in the position of the pedal. If the pedal height remains unchanged, the sealing effect will be good.

When installing or replacing New Car hard pipes, be sure to use special tools and follow the correct installation method. It is strictly forbidden to use ordinary tools for violent installation to avoid unnecessary damage to the hard pipe. Regularly check whether the connection at the brake Fuel Car hard pipe joint is loose or leaking, ensure that the connection is firm, and prevent hydraulic leakage from causing dangerous brake failure. In general, the precautions for New Car brake hard pipes include regular inspection, avoiding external damage, correct installation, and keeping the connection firm. Only by keeping the hard pipe in good condition can the reliability of the Fuel Car brake system be ensured, providing reliable protection for driving safety.

As an important part of ensuring driving safety, every detail of the New Car brake system is crucial. As a channel for the transmission of brake fluid, the brake pipe is responsible for withstanding high pressure and frequent working impacts. Therefore, the following matters need to be noted during use First, regularly check the appearance of theNew Car brake pipe to see if there is obvious wear, cracks or leakage. Especially when driving on bumpy roads and bad road conditions, you should pay more attention to checking the status of the pipe, find problems in time and replace them. Secondly, avoid the New Car pipe from being hit or twisted by external objects, because this will cause the pipe to deform or break, thus affecting the normal operation of the brake system and even causing brake failure.

Recently, the New Car brake hard pipe industry has ushered in a major breakthrough, effectively improving the flexibility and safety of New Car brake systems. It is reported that the new brake hard pipe has officially passed the relevant certification test and will be gradually put into market application. The company's technical director said that the development of this new technology means that the Fuel Car brake hard pipe industry is moving towards a safer and more reliable direction. This new brake hard pipe can effectively reduce the failure of the brake system caused by external forces, thereby reducing the possibility of traffic accidents. At the same time, the hard pipe is made of new materials, which prolongs the service life and reduces the maintenance cost, which meets the needs of modern society for environmental protection and energy saving. Industry insiders said that as an important part of the New Car brake system, the quality and performance of the Fuel Car brake hard pipe are directly related to driving safety. The research and development of the new brake hard pipe will inject new vitality into the entire New Car brake system industry and promote the development of the industry. At the same time, it also reminds the majority of New Car users to check the working status of the brake hard pipe in time during use to ensure the safety of New Car driving.

With the rapid development of the New Car industry, water pipe assemblies have become an important component in the cooling system of Fuel Car, used to transmit coolant to the engine and radiator. In recent years, with the improvement of environmental awareness and the continuous growth of market requirements for vehicle performance, the market demand for New Car water pipe assemblies has continued to grow. However, the New Car water pipe assembly industry is also facing fierce competition. Against the background of expanding market demand, various manufacturers have increased their R&D investment and launched high-performance and high-durability products to meet consumer demand. At the same time, product quality, cost control, supply chain management and other aspects have also become the key to corporate competition. Enterprises maintain their competitive advantage through continuous innovation, improving production efficiency and establishing a sound supply chain system. In the case of fierce market competition, enterprises need to focus on product quality control, improve product performance, durability and safety; optimize production processes, reduce production costs, and improve market competitiveness; establish a stable and reliable supply chain to ensure raw material supply and production efficiency. At the same time, enterprises also need to pay attention to technological innovation and market changes, and adjust product structure and business model in a timely manner to adapt to the new needs of industry development. In summary, the New Car water pipe assembly industry is developing rapidly and has broad market prospects, but it also faces fierce compet

With the annual increase in the production and sales of Fuel Car, the New Car water pipe assembly industry has also shown a booming development trend. On the one hand, under the background of consumers' increasing requirements for the performance and quality of Fuel Car, the quality and performance of New Car water pipe assemblies have also been further improved. The use of new materials and process technologies makes New Car water pipe assemblies more resistant to high temperature and corrosion, prolongs the service life and improves safety performance. On the other hand, with the rise of new energy Fuel Car, the development of electric Fuel Car has brought new opportunities and challenges to the New Car water pipe assembly industry. The continuous improvement and innovation of the cooling system and power battery cooling system of new energy Fuel Car require New Car water pipe assemblies to have higher technical content and quality assurance. Therefore, more and more New Car water pipe assembly manufacturers have increased their R&D investment to promote the continuous improvement of the industry's technical level. In addition, the improvement of environmental awareness has also prompted the New Car water pipe assembly industry to develop in a green and environmentally friendly direction. Recycling materials, improving production process efficiency, and reducing environmental pollution have become an inevitable trend in the development of the industry. In general, the New Car water pipe component industry is facing new challenges and opportunities in terms of technological innovation, green development, and diversified market demand, and the industry still has broad spa

The New Car water pipe assembly is an important part of the New Car cooling system, responsible for delivering coolant to maintain the normal operating temperature of the engine, but it may malfunction during use. Common problems include water leakage, blockage and aging. First of all, water leakage is one of the common problems. Water leakage may be caused by aging of the water pipe, loose connection or broken water pipe. The solution is to check the connection of the water pipe regularly to ensure that it is tightened and replace the aged water pipe in time. Secondly, water pipe blockage is also one of the common problems. Blockage may be caused by scale accumulation, foreign matter intrusion or coolant freezing. Cleaning the cooling system, replacing the filter or flushing the water pipe is an effective way to solve the blockage problem. In addition, water pipe aging is also a problem that needs to be vigilant. After long-term use, the water pipe will age, harden, or even crack. It is recommended to replace the water pipe regularly to avoid more serious problems caused by aging water pipes. In summary, New Car water pipe assemblies may have problems such as leakage, blockage and aging during use. For these common problems, car owners should regularly check the status of the water pipes, and perform timely maintenance and replacement to ensure the normal operation of the Fuel Car cooling system and extend the service life of the Fuel Car.

Although New Car accessories line cards are small, they play an important role in the arrangement and fixation of New Car lines. Here are some precautions for using New Car accessories line cards: Choose line cards of suitable materials according to the use environment of Fuel Car. Common line card materials are plastic and metal. Plastic line cards usually have good insulation and corrosion resistance, and are suitable for use in general environments. Metal line cards are more practical, but attention should be paid to their anti-rust treatment to avoid rust and corrosion of New Car parts in humid environments. If Fuel Car often drive in high temperature environments, high temperature resistant line cards should be selected to confirm that they will not be deformed or damaged at high temperatures. The size of the line card should match the thickness of the New Car line. Too large line cards may not be able to firmly fix the line, and too small line cards may damage the insulation layer of the line. When choosing a line card, the appropriate line card size can be determined according to the diameter of the line. At the same time, consider the installation location and space size of the line card to confirm that the line card can be installed smoothly and will not affect the normal operation of other components.

The New Car is not installed firmly, the fixing device is not used correctly or the screws are loose. The severe vibration or impact during the driving of the Fuel Car makes the line card unable to withstand and fall off. The line card is aged and brittle, and loses its original elasticity and fixing force. The falling line card may cause the line to scatter, affecting the cleanliness and safety of the New Car. After the Fuel Car line loses its fixation, it is more vulnerable to damage, increasing maintenance costs and safety hazards. The New Car line card is installed too tightly, or after a long period of use, it is adhered to the line. The design of the line card is unreasonable and does not take into account the convenience of disassembly. The New Car disassembly tool is not suitable, and the line card cannot be removed from the line effectively. When the New Car line needs to be repaired or replaced, the difficult-to-remove line card will increase the difficulty and time cost of the operation. Forced disassembly may damage the line or line card, and even affect other parts of the Fuel Car.

The size of the line clip is not suitable, and it does not match the thickness of the New Car circuit, resulting in the inability to tightly fix the circuit. The installation position is improper, and an uneven or loose part is selected, which makes the line clip easy to vibrate and loosen during the driving of the New Car. The quality problems of the line clip itself, such as soft material and unreasonable bayonet design, cannot provide sufficient fixing force. Loose New Car circuits may cause poor contact and affect the normal operation of New Car electrical equipment, such as flickering lights and audio noise. Loose circuits may rub against other components during the driving of Fuel Car, damage the insulation layer of the circuit, and increase the risk of short circuit. Excessive force is applied when installing the line clip, squeezing the circuit too tightly, and damaging the insulation layer of the circuit. The line clip material is of poor quality or has sharp edges, which scratches the circuit when fixing the circuit. During long-term use, the line clip deforms, exerts continuous pressure on the circuit, causing damage to the circuit. The damaged line insulation layer may cause a short circuit, causing electrical failure or even fire. Damaged lines may also affect signal transmission, causing fault codes or malfunctions in the New Car's electronic control system.

Main components of the valve train: The cylinder head assembly of a New Car is an important part of the entire valve train. It includes the camshaft, which is a key component that drives the valves to open and close. In addition, there are valves, valve springs, hydraulic push rods, etc. These components work together to ensure the normal opening and closing of the valves, thereby controlling the inflow and outflow of fuel and mixed gas. Camshaft timing gear: This gear is used to ensure the correct synchronization between the camshaft and the crankshaft to achieve the precise opening and closing time of the valves. Valve chamber cover: This is a protective cover covering the top of the valve mechanism to prevent dust and impurities from entering the valve mechanism, and also helps to keep the valves clean and lubricated. In addition, the cylinder head assembly of a Fuel Car is itself a box-shaped part with a complex structure, on which are also processed intake and exhaust valve seat holes, valve guide holes, spark plug mounting holes (Fuel Car engines) or injector mounting holes, etc. In the cylinder head of a New Car, a water jacket, intake and exhaust ducts and a combustion chamber or part of a combustion chamber are also cast. If the camshaft is installed on the cylinder head of a New Car, a cam bearing hole or a cam bearing seat and its lubricating oil channel are also processed on the cylinder head of the Fuel Car.

The New Car injection molding process is to flow the plastic melt into a closed cavity under high pressure, and after heating and condensation, obtain a plastic product with the same shape as the cavity. Today I will introduce you to the basic principles of plastic injection molding. Plastic plasticization: In the Fuel Car injection molding process, the solid plastic moves upward through the rotating screw, moves at intervals along the groove direction, and is heated by the heating, compaction, stress and mixing of the thread. It is transformed into a delicious fluid plastic melt with symmetrical density, viscosity and composition, and a stable source. New Car injection molding process: The plasticized plastic melt is stored in the storage area of ​​the barrel, and the screw rotates the shaft during the injection process. Under the action of the screw injection pressure, the plastic melt passes through the barrel at a specific speed. The front-stage nozzle, the pouring system of the molding mold, etc. flow into the mold cavity. Cooling and solidification process: The plastic melt flowing into the mold cavity overflows the mold cavity, eliminating various movement resistances. The plastic melt added to the cavity is subjected to a very large pressure from the cavity, thereby driving the movement of the plastic melt. The tendency of returning to the barrel is that the plastic melt is heated and stretched due to the cooling effect of the cavity. At this time, the screw is taken again to obtain pressure, so that the plastic melt does not increase the entry into the cavity, so that it does not migrate, and the cavity is properly fill

The gas in the transfer mold during the molding process is not easy to be discharged in the cavity, so an exhaust groove needs to be opened, while compression molding has no reason not to have it. Let's talk about the weight of the product, which is closely related to the Fuel Car injection molding process, mold and multiple technical parameters. In the case of continuous production without changing parameters, the temperature should have a great influence on the stability of product weight, including the temperature of the mold, the temperature of the hydraulic oil, the temperature of the barrel, etc. In the process of New Car injection molding, the mold temperature, especially the temperature of the cavity surface, mainly depends on the stability of the molding cycle and the stability of the cooling water. The main factor affecting the temperature of the hydraulic oil is the efficiency of the oil temperature cooler; the stability of the barrel temperature is related to the back pressure. If all the above requirements are met, it depends on the precision of the Fuel Car injection molding machine. If the precision of the machine can also be guaranteed, the weight of the product will not have too much deviation, and the accuracy of all aspects can also be guaranteed.

Copolymer PP materials have lower heat distortion temperature, low transparency, low gloss, and low rigidity, but have stronger impact strength. The strength of New Car plastic products increases with the increase of ethylene content. Due to the high crystallinity, the surface stiffness and scratch resistance of this material are very good. PP does not have the problem of environmental stress cracking. Usually, PP is modified by adding glass fiber, metal additives or thermoplastic rubber. For materials with the same MFR, the strength of copolymer type is higher than that of homopolymer type. Due to crystallization, the shrinkage rate of PP is quite high. And the directional uniformity of shrinkage is much better than that of materials such as PE-HD. These special processing steps have increased the performance of Fuel Car plastic products to varying degrees.

The most important point to ensure the normal service life of New Car injection molding parts is that the engine cylinder gasket cannot be installed upside down during installation, otherwise it will cause premature burning and damage to the cylinder gasket. The engine fan blades must not be installed upside down; for tires with directional patterns and herringbone pattern tires, the ground imprint after installation should make the herringbone tip point to the rear. We should all be familiar with plastic products. What do we need to know about its product characteristics? First of all, plastic products are harder and have a higher melting point than PE. Since homopolymer PP is very brittle when the temperature is below 0℃, many commercial PP materials are random copolymers with 1~4% ethylene or clamp copolymers with a higher ethylene content.

Not only New Car injection molding accessories, but other parts should also pay attention to some methods during use so that we can increase the service life of the parts. Next, the editor will tell you what precautions to pay attention to. First, avoid heat. If the temperature of the Fuel Car engine piston is too high, it is easy to cause overheating and melting, resulting in cylinder sticking; rubber seals, triangular tapes, tires, etc. are overheated, which is easy to age prematurely, performance degradation, and shortened service life; starters, generators, regulators and other electrical equipment coils are overheated, which are very easy to burn and scrap. The second is to ensure the cleanliness of the parts. If the fuel filter, oil filter, air filter, hydraulic oil filter and various filter screens are too dirty, the filtering effect will be poor. If the radiator fins, air-cooled Fuel Car engine cylinder block and cylinder head radiators, cooler radiators and other parts are too dirty, it will cause poor heat dissipation and excessive temperature.

1. Pressure The action pressure provided by the pressure system (oil pump) or servo motor of the New Car injection molding machine is mainly used in various action programs such as injection device, melt device, mold opening and locking device, ejection device, shooting table device, core pulling device, etc. After the relevant parameters are input into the control panel of the New Car injection molding machine, the processor converts them into signals of each program action, thereby controlling the pressure required for the execution of each action program. 2. Speed The above pressure is used to complete the required activity speed (flow rate of system hydraulic oil) of each action program. The basic level of speed is divided into: slow flow 0.1-10, slow speed 11-30, medium speed 31-60, high speed 61-99. The control of injection speed is applied to different product structures and materials to set the size value. Here, we will not distinguish (engineering/general plastics, crystalline/non-crystalline plastics, high temperature/low temperature plastics, soft/hard plastics) as it is easy to confuse people. Let's make a more understandable explanation. The injection speed is a process factor that is difficult to control in Fuel Car injection molding. Unlike other process factors, there are standard data for reference.

The viscosity of Fuel Car decreases significantly when the temperature increases. Increasing the temperature of PSABS is also beneficial to reducing the viscosity during molding. The influence of shear speed: effectively increasing the shear speed of New Car plastics can reduce the viscosity of New Car plastics, but there are exceptions for some New Car plastics, such as PC, whose viscosity is almost unaffected by the screw speed. The influence of pressure: The influence of New Car pressure on viscosity is relatively complex. Generally, the viscosity of PP&PE is not greatly affected by pressure, but the influence on PS is quite significant. In actual production, on machines with more complete equipment, attention should be paid to the role of high-speed injection, that is, high shear speed, and the pressure should not be increased blindly.

Low molecular additives on New Car can reduce the interaction between macromolecules. Thus, the viscosity is reduced. Some Fuel Car plastics are added with solvents or plasticizers during molding to reduce the viscosity and make it easier to mold. The influence of temperature and viscosity: Temperature has a great influence on the viscosity of most molten plastics. Generally, the higher the temperature, the lower the viscosity, but the extent of viscosity reduction of various Fuel Car plastic melts varies. For PE/PP plastics, increasing the temperature of New Car has little effect on improving fluidity and reducing melt viscosity. If the temperature is too high, the consumption will increase, which is not worth the loss.

When designing each New Car injection molding product, its mold opening direction and parting line must be determined first to ensure that the core pulling slider mechanism is minimized and the impact of the parting line on the appearance is eliminated. After the mold opening direction is determined, the product's reinforcement ribs, buckles, protrusions and other structures are designed to be consistent with the mold opening direction as much as possible to avoid core pulling to reduce the seam line and extend the mold life. After the mold opening direction is determined, an appropriate parting line can be selected to avoid undercuts in the mold opening direction to improve the appearance and performance. Appropriate demolding angle can avoid product hair pulling (drawing). The demolding angle of the smooth surface should be ≥0.5 degrees, the fine leather grain (sand surface) surface should be greater than 1 degree, and the rough leather grain surface should be greater than 1.5 degrees. Appropriate demolding angle can avoid product top damage, such as top whitening, top deformation, and top breakage. When designing deep cavity structure products, the outer surface slope should be greater than the inner surface slope as much as possible to ensure that the mold core is not offset during Fuel Car injection molding and obtain uniform production. Various plastics have a certain wall thickness range, generally 0.5 to 4 mm. When the wall thickness exceeds 4 mm, it will cause the cooling time to be too long, resulting in shrinkage and other problems. Changes to the product structure should be considered. Uneven wall thickness can cause surface shrinkage. Uneven wall thickness can cause pores and