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What size spray gun is used for multicolor paint?

1 Answers
EvelynRose
07/30/25 7:18am
Spraying multicolor paint requires a spray gun with a 3.0 mm nozzle. Introduction to spray guns: A spray gun is a tool for applying paint, used in surface treatment of products and is a type of coating equipment. It atomizes paint into fine droplets using compressed air, which are then propelled by airflow onto the surface to be painted. The spray gun mainly consists of a spray cap, nozzle, needle valve, and gun body, and requires an external connection to a pneumatic device such as a pressure tank, pressure pot, or pump. Compared to traditional manual brushing, spray guns are more time-efficient, aesthetically pleasing, and 5 to 10 times more efficient. They produce a fine, smooth, and even paint film. Maintenance of spray guns: Before and after each use, add 3 to 4 drops of specialized pneumatic maintenance oil into the tool's air inlet to reduce wear and extend the tool's service life. Ensure the air supply to the tool is dry and free of impurities. Regularly clean, lubricate, and maintain the tool, and replace worn parts promptly.
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What does PEU mean in new energy vehicles?

PEU is the power electronic integration module of new energy vehicles, which is one of the most important components that distinguish new energy vehicles from traditional fuel vehicles. The related introduction is as follows: 1. At present, most motor drive systems integrate functions such as MCU (motor control unit), DC-DC, OBC (on-board charger), PTC (on-board heater), etc. This power integration unit is called PEU. 2. Through PEU aging tests, the performance of the electric vehicle PEU under various working conditions can be comprehensively examined. In addition to PEU, new energy vehicles are often equipped with VCU and BMS. The related introduction is as follows: 1. VCU: The vehicle control unit of new energy vehicles, which is the core electronic control unit for realizing vehicle control decisions. It is generally only equipped in new energy vehicles, and traditional fuel vehicles do not need this device. 2. BMS: Battery management system. Main functions: detecting whether the voltage, current, temperature, capacity, and other environmental parameters of the battery during charging and discharging are within a safe range, ensuring the safety of battery use, improving service life, and increasing efficiency.
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What does the dashboard prompt 'Please check HHC' mean?

Please check HHC means that the hill hold control system's working status needs to be inspected for normal operation. Relevant explanations are as follows: 1. HHC is the hill hold control system, which is integrated into the ESP system. 2. If the HHC malfunctions, the ESP indicator light will illuminate, and a graphic prompt message will be displayed on the combination instrument display. It is necessary to go to a repair facility as soon as possible to determine the cause of the malfunction. Additional information is as follows: 1. The hill hold control system (HHC) allows the vehicle to start on a slope without using the parking brake, enabling the driver to easily move their foot from the brake pedal to the accelerator pedal to avoid rolling back and causing an accident. 2. When the slope gradient is greater than 4%, the gear is not in 'P' or 'N' position, and the electronic parking brake is not applied, the driver presses the brake pedal to stop the vehicle and keep it stationary. If the driver releases the brake pedal at this time, the HHC function activates, applying brake pressure to the vehicle, which is maintained for 1 second.
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Should Brake Discs with Grooves Be Replaced?

Brake discs developing grooves is a normal phenomenon, and replacement is not necessary if it does not affect braking performance. Relevant details are as follows: 1. Most brake discs will develop scratches or grooves during use, mainly due to the material composition of the brake pads. Brake pads are made of a combination of various materials, including hard metal powders. If there are relatively large metal particles in the powder, friction between these particles and the brake disc will cause scratches or even grooves. This occurs because metal particles are quite hard and share the same material as the brake disc, leading to damage when they rub against each other, hence the grooves on the brake disc. 2. Brake discs should be replaced when the wear depth exceeds 2 millimeters. Generally, brake discs should be replaced after changing brake pads 2-3 times. If vibration occurs during braking, this may also indicate an issue with the brake disc, possibly due to uneven wear or deformation. In such cases, the brake disc should be removed and resurfaced using a lathe. If the problem persists, a new brake disc should be installed.
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What is the BMW 116i?

BMW 116i is an imported car. The first digit '1': Represents the 1 Series. BMW uses numbers to indicate vehicle classes, with '1' representing the internationally recognized A-segment car size. The following digits: Are manufacturer-assigned codes primarily indicating engine displacement or torque, though this system has become inconsistent. Generally, larger numbers suggest better displacement or power. For example, the 116i uses a 1.6T 136hp L4 engine, while the 118i uses a 1.6T 170hp L4 engine. The 'i' stands for: Fuel injection system (intelligent electronic fuel injection gasoline engine), mainly distinguishing gasoline engines from diesel engines, with 'D' representing diesel.
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What are the symptoms of a broken Subaru axle?

Subaru axle failure may exhibit symptoms such as metal friction noises, abnormal sounds when turning the steering wheel to full lock, severe shaking during high-speed driving, and significant body vibration. Symptoms of a broken Subaru axle: There may be sounds of metal friction or metal-on-metal impact. Abnormal noises occur when turning the steering wheel fully left or right. The car shakes violently during high-speed driving. Significant body vibration occurs while driving. Types of axle fracture appearances: Axle flange detachment or cracks; Clean break at the axle shaft; Spiral fracture at the axle shaft; Mixed fractures and cracks at the axle shaft; Fracture at the axle spline; Other types of axle fractures and cracks.
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Why doesn't the Volkswagen Lavida dashboard light up during the day?

The Lavida dashboard doesn't illuminate during the day because its instrument lights are automatically adjusted, featuring a light-sensing instrument panel. A dark instrument panel serves as a reminder for the driver to turn on the headlights. Indicator Lights: The most common indicator lights encountered while driving include turn signals, parking lights, etc., which indicate the status of various vehicle functions. Warning Lights: These have warning functions, such as the fuel indicator, door status indicator, seat belt indicator, etc. Typically, warning lights turn off after the driver performs the corresponding action. For example, the seat belt indicator turns off once the seat belt is fastened. Fault Indicator Lights: These are the most critical indicators, such as the generator fault indicator, transmission fault indicator, etc. These fault indicators rarely light up under normal circumstances or may briefly illuminate when starting the engine before turning off. If a fault indicator remains lit continuously and is accompanied by a warning sound, it indicates that the vehicle has developed a fault or abnormality.
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