Front and rear door hinges introduce

Also known as door hinge, it is used for opening and closing doors. Hinges, also known as hinges, are mechanical devices used to connect two solids and allow relative rotation between them. Hinges can be composed of movable components or foldable materials. The main feature is to provide cushioning when the cabinet or door is closed, minimizing the noise generated by collisions with other parts when the door is closed. Car hinges are generally used in car doors and engine hood, And the trunk lid, fuel tank lid hinge, etc. In order to connect the car door to the body, the hinge is responsible for connecting the car door to the body, ensuring the opening and closing of the car door, and allowing the car door to open and close, so there is a door hinge. Its main function is to connect the car body to the car door. Generally, The door hinge should consist of at least three parts. 1. Body parts connected to the vehicle body. 2. Door parts connected to the door. 3. Other parts that connect the body parts and door parts and ensure that the door hinge can make opening and closing movements)

The installation of car doors requires the following processes:

The installation of car doors requires the following steps: 1. First, prepare the new car door that needs to be replaced and installed. Place the new car door on a paper shell to avoid scratching the new door, and prepare the necessary tools for installation, including a large wheel, a small wheel, a No. 13 sleeve, a No. 6 sleeve, and a small hammer. Then, start the operation process. 2. Install the door hinges, where a large wheel is required, Cooperate with sleeve 13. Take out the door hinge, fix the screws of the door hinge, and then make a rough comparison by hand to check whether the hole of the hinge is the same size as the screw hole of the door, and whether the screw can be screwed in exactly. Do a good job of inspection. 3. After comparing the hinge by hand, take out the large wheel and match it with sleeve 13. Gently tighten the screws that fix the hinge to the door by hand, and then use tools to tighten it. If you use tools to tighten it directly, It is easy to break the screws, which results in the entire car door being scrapped. Therefore, when tightening, be careful and slow. Pay attention to the extended part of the hinge head facing downwards, as it needs to be inserted into the card slot of the car body hinge. 4. Lift the door with the installed hinge by hand and lift it to the installation position of the car body door. There are two hinge holes on the installation position of the car body door, and the extended part of the hinge head on the new car door should be aligned up and down, Insert it into the two hinge holes on the car body. Be sure to take it slow and align the upper and lower holes before inserting it to avoid scratching the paint surface on the car body. 5. The extended part of the inserted hinge may get stuck halfway through the holes, which is a common problem, but it is also easy to solve. Take out the hammer and smash the hinge on the car door twice with the hammer, and the extended part will enter the car body hole. 6. Next, remove the screw that fixes the car body hinge, There is a screw hole in the middle part of the body hinge hole, which is used to fix the body hinge and door hinge. First, gently screw in a part by hand to avoid damaging the screw directly with tools. The screw on the door should be fixed with extra care. 7. Take out the small wheel, long extension rod, and No. 6 sleeve, and tighten the screw that has been screwed in by hand with tools. There are a total of two screws, up and down, which are also completed according to the above procedure. It should be noted that:, Be sure to steadily and tentatively tighten the screws bit by bit in order to complete the task smoothly

BMW 6 Series introduce

The BMW 6 Series is a car specially designed by BMW Germany for sophisticated drivers. It was introduced in 1976 and discontinued in 1989. During this period, its sales reached 86000 units, making it the most successful box car in BMW's history After a 14 year hiatus, BMW decided to revive the 6 Series and once again enter this large luxury sports car market, showcasing the core concept of the BMW 6 Series in GT racing, combining the advantages of sports cars and luxury RVs The previous models of BMW's sporty two door cars have also perfectly achieved this integration. In terms of exterior design, the 6 Series maintains the typical dynamic style of BMW Coupe, with a long hood, low roof lines, and front and side skirts giving the car a dynamic and elegant posture. To distinguish it from other models, the headlights, engine cover, radiator grille, and front air vents have all been redesigned. By introducing new elements such as LED brake lights in the tail light design, in addition to greatly reducing reaction time, the size and brightness can be adjusted according to different environments. The BMW v8 engine provides power for the 6 Series. BMW is known for its advanced technological development, and a series of LED brake lights have been introduced. The application of high-tech projects has maintained BMW's leading position in the automotive industry. The 6 Series has also adopted many advanced scientific research achievements. The new 6 Series has a body length of 4820mm and a width of 1800mm, which is even wider than the 5 Series. Such a large body shape will inevitably increase the weight of the body, and excessive body weight will greatly affect the acceleration and handling of the 6 Series. Therefore, BMW has used a large amount of aluminum alloy and composite materials on the body of the 6 Series, In order to achieve the goal of reducing weight, carbon fiber reinforced plastic materials are 50% lighter than steel and 35% lighter than aluminum, which can effectively reduce the weight of the vehicle body. The rigidity is three times that of other materials in the central control area (10 sheets), and the collision resistance and safety are quite good, which has always been an ideal material for the automotive industry. However, due to the lack of stamping equipment, carbon fiber used to be produced manually. BMW has developed a set of stamping equipment with a self weight of 200 tons and a pressure of 1800 tons, which is the world's first mass-produced carbon fiber roof, and has begun trial use on the new 6 series. The 6 series also uses an overhead display (hud) system that is only available on aircraft, which can directly display some important information. Projected onto the windshield of the car, including navigation direction, speed, and active cruise control display. The core functions related to driving in the car are operated through the i-drive controller and buttons attached to the steering wheel, but the i-drive control button is placed on the right side of the gear lever and requires arm extension to reach. Other secondary functions and comfort equipment control are arranged in a distance that is easily accessible to the other (2) cars and front seat passengers, Very convenient. Users can also choose a panoramic glass roof that is much larger than a regular electric sunroof, allowing more sunlight to enter the luxurious interior of the car. Dynamic driving and active steering systems are optional equipment for the 6 Series, which can greatly eliminate the body roll caused by vehicle turning and increase the comfort of passengers inside the car. The active steering system, on the other hand, changes the steering ratio based on the vehicle speed through a stepper motor. At lower speeds, the steering sensitivity increases, and larger wheel turns can be achieved by turning the steering wheel at a smaller angle. This situation is very useful for drivers driving on urban roads or parking and turning around. As the speed increases, the steering becomes more sensitive. Accurate, ensuring driving stability and comfort. The BMW 6 Series engine is equipped with Dynamic Stability Control (DSC) and Dynamic Traction Control (DTC) systems. In addition, the Driving Dynamics Control (DDC) technology used in the BMW M3 and M5 models is also used in the new 6 Series, which is controlled through a "SPORT" button located on the center console The DDC function can increase the sensitivity of the throttle response, improve acceleration ability, and provide a more direct response to the power assisted steering mechanism, thereby increasing the driving pleasure of the driver. In terms of power, there is also the option to choose a sequential manual transmission (SMG), which can be changed by the paddles on the steering wheel or the gear lever. As for the interior, we have always trusted BMW. The 6 Series adheres to BMW's consistent style, perfectly combining luxury and practicality. The bright colors are more in line with its sporty characteristics, and there are multiple configurations to choose from. As a representative of luxury cars, the BMW 6 Series [2] also has many commendable features. In terms of sound configuration, the new BMW 6 Series is equipped with 8 features. A hi fi sound system with speakers, 9 space seats, and 6 CDs create a home theater effect