1. Energy absorption box
Anti-collision steel beams are installed at the front and rear of the vehicle, which mainly plays a role in alleviating low-speed collision. However, anti-collision steel beams are generally not directly fixed on the car body, but connected through the energy-absorbing box at the tail. The energy-absorbing box can effectively absorb the impact energy, thus reducing the damage to the body structure.
2. Collapse inducing groove
Collapse-inducing groove, also called collapse-guiding groove, mainly appears in energy-absorbing boxes and other structures to alleviate collision. When impacted, the extrusion inducing groove can deform the energy-absorbing box as expected through the physical shape of the component to protect the main structure.
3. Front bumper air pressure sensor
On the one hand, anti-collision steel beams alleviate low-speed collisions, on the other hand, they are also used to protect pedestrians. At present, many models add auxiliary beams to the lower part of the main beam to prevent pedestrians from being involved in the bottom of the car. There are also some high-end models that use air pressure sensors. In the event of a collision, the cover will pop up, thus reducing the harm to pedestrians.
4. Door collision beam
Although the probability of side collision is much lower than that before and after, the side collision is closer to the passenger compartment and the collision risk is higher, so the inner anti-collision beam of the door is particularly important. The anti-collision beam structure in the door is also different, in which the round steel anti-collision beam is backward, with low cost and poor strength; In addition, the bow-shaped (W-shaped) structure is more advanced, and the bow-shaped steel structure is complex but has higher strength. In addition, most models will be equipped with stiffeners to improve the strength of the doors.
5. Splicing the door weld
According to the physical characteristics of metals, the structural strength of splicing molding is mostly not as good as that of integral molding structure. Many low-end models use split doors. Although the strength is poor, the cost is much lower than that of the integrated structure. In order to save costs, it is understandable, but the ox cart laboratory will focus on the splicing welds of these models' doors when disassembling them. If the splicing structure with poor strength is adopted, and the splicing weld process can not meet the requirements, we will focus on criticism and reflect it in the structural score.
6. Asphalt anti-vibration stickers
Large steel plates, such as doors, roofs and underbody, are the high-incidence areas of * * * vibration. Asphalt anti-vibration stickers have low cost, which can effectively alleviate the vibration after posting, but it is also a place where odor and harmful substances are produced.
7. butyl rubber shock absorber
Butyl rubber anti-vibration paste has the same function as asphalt anti-vibration paste, but butyl rubber anti-vibration paste has high cost, environmental protection and no odor, and butyl rubber anti-vibration paste is obviously superior to asphalt anti-vibration paste.
8. Roof reinforcement
The probability of roof collision is the lowest, but the same strength is also the worst and the buffer space is the smallest. There is not enough space on the roof, so there is no need to set up anti-collision steel beams. However, the setting of the reinforcing ribs is essential to prevent the deformation of the carriage when the vehicle rolls and squeezes.
9. Primary soundproof cotton
Sound insulation design is an eternal topic of automobiles and the most important channel to improve driving experience. Raw cotton is white, which costs a lot, but it has no peculiar smell and harmful substances. Generally, it mainly appears in doors and indoor ceilings.
10. Regenerated soundproof cotton
Regenerated sound insulation cotton and primary sound insulation cotton are black and white brothers, and their characteristics are completely different. Regenerated cotton is black and has low cost. Because of the use of recycled materials, the adhesive will inevitably produce formaldehyde, so it is also the source of odor and harmful substances.
1 1. Felt layer
Carpet layer is the structure of the lower part of the floor in the car, which mainly includes felt layer, moisture-proof layer and foaming layer. The felt layer is on it, which needs to be waterproof and wear-resistant; As the name implies, the moisture-proof layer is waterproof and moisture-proof, preventing the liquid spilled from the car from infiltrating into the floor to be moldy and deteriorated; The foam layer mainly uses soft foam. Of course, like the BMW 3 Series and Link 03 we dismantled, these three-layer structures are all handled in three.
12. Metal plate adhesive
The composition of sheet metal adhesive is mainly polyurethane, which is widely used for sealing and bonding between automobile structural parts because of its advantages of fast curing, good elasticity and strong adhesion. However, sheet metal glue can also produce odor and harmful substances, and sheet metal glue is mostly coated by hand, so it is a common problem in the production process.
13. Corrugated wire harness
As we all know, there are long circuits in cars. These circuits are complex and have different protection measures. Corrugated pipe is a good protective measure, which can effectively insulate and protect the circuit. In addition to bellows, some manufacturers who cut corners even directly wrap the wiring harness with insulating tape.
14. European Currency Unit
ECU (electronic? Control? Unit) is an electronic control unit, which is the brain of a car in popular terms. It integrates microprocessor (MCU), memory (ROM, RAM), input/output interface (I/O), analog-to-digital converter (A/D) and large-scale integrated circuits such as shaping and driving. In the field of refitting, we often hear refitting players dictate "brushing ECU", in fact, by rewriting the driving computer program, thus changing various parameters of the vehicle.
15.ABS pump
ABS (anti-lock braking? Brake? System) is a kind of anti-lock braking system, which can automatically control the power of the brake when braking, so that the wheel can reach the critical locking state (the slip rate is about 20%), thus ensuring the maximum adhesion of the wheel and improving the braking performance. ABS pump is the main hardware of ABS system. When braking again, the ABS sensor on the wheel sends the received information back to the ABS computer board, and the ABS computer board controls the ABS pump to adjust the braking oil pressure at a very fast speed to achieve the effect of anti-lock.
16. Firewall
The firewall is set at the rear of the engine room, which can effectively prevent or delay the fire from spreading to the cockpit when the engine room is on fire. The function of automobile firewall is not only used for fire prevention, but also can play the role of heat insulation and noise reduction through spherical aluminum plate, fire-proof insulation cotton and other materials.
17. Anti-roll bar of rear suspension
Anti-roll bar is an auxiliary elastic element in automobile suspension. Its structure is very simple, and a U-shaped connecting rod is used to connect the suspension on both sides. When the vehicle turns, the suspension on the inner side of the curve is stretched and the inner side is compressed, so as to prevent the vehicle body from tilting too much when turning, improve the riding comfort of the vehicle and prevent the vehicle from rollover accidents.
The above is the interpretation of disassembly terms summarized by Oxcart Laboratory. I hope this article can help you. If you are confused about other terms, you can leave a message or give us a private message, and we will continue to summarize it for you after sorting it out.
This article comes from car home, the author of the car manufacturer, and does not represent car home's position.