As the saying goes, "people are old and old, cars are bad and bad", yes, Xiao Bian is a saying. The face could still be worn with a mask, and it would be hard for the foot to rot. The chassis ensures the safety of the vehicle and the owner. Once the rust is corroded, the structure of the vehicle will be loosened and the security risks will be caused. Many traffic accidents are caused by the looseness of the chassis. Therefore, to prevent problems, chassis protection is indispensable. So today, Xiao Bian gave everyone a talk about the maintenance of the chassis!

First, the cause of the chassis damage

1. Tow the bottom, foreign objects hit the chassis

Domestic roads, roads that have just been repaired today, will be “opened up again” tomorrow, and when the roads are repaired, most of the time there will be more large rocks or pits, and our cars will drive to such roads. When you don’t pay attention, you can make big stones or other protruding objects make intimate contact with the chassis of your own vehicle, which is what we often call the bottom.

Due to the uncertainty of the dragging bottom situation, it is easy to cause damage to the parts located on the chassis, such as the crushing of the three-way catalytic converter housing, the crack of the engine oil pan, the crack of the transmission case, or the deformation of the suspension system. The occurrence of these problems will bring fatal damage to your car.

2. Corrosion

Due to the increasingly harsh environment, sometimes even the rain is acid rain. In this environment, our car may increase the possibility of damage. Because the chassis is often in contact with sewage, greasy substances and other substances, and the chemical composition of these substances will slowly corrode the chassis and parts on the chassis, so we must pay more attention to the anti-corrosion of the chassis.

In addition to the dangers of rain and oil sludge that may cause corrosion of the chassis, the snow melting agent and seawater used to melt the snow in winter can erode the chassis, especially seawater, if you accidentally drive the car into the sea (the chance is not big...) Or for the sisters to watch the sea sunrise or something, seawater will be very corrosive to the chassis. If you do not pay attention to the chassis and sea water contact, as soon as possible with a large amount of fresh water or neutral detergent to wash the chassis.

Second, chassis protection

Generally, in order to prevent the occurrence of damage to the chassis that has just caused two accidents, it is recommended to install the engine guard plate on the car or carry out chassis protection commonly known as “chassis armoring” to the chassis. The recommendation for the installation of engine guards is highly recommended because some economical cars do not install protection devices below the engine and transmission in order to save costs. This also puts the engine and transmission in direct contact with the road. With the engine guard installed, it is possible to artificially protect the engine and transmission as well as the important parts located on the undercarriage part of the front, so that even if the undercarriage really occurs, it will be in contact with the guard before the damage will not occur. Components.

1. "Chassis Armor" (or "Chassis Sealing")

Chassis armoring is chassis protection technology in recent years. A layer of 2~4mm thick elastic sealing material is sprayed under the car chassis.

Why is the car chassis always hurt? The reason is all here!

Chassis armor can effectively prevent road sand and gravel from hitting the chassis, prevent slight dragging at the bottom; prevent acid, alkali and salt from corroding the chassis; prevent loosening of chassis screws; reduce noise conduction during driving and increase driving quietness Prevent the chassis iron plate heat conduction, so that the driving room is cool in winter and cool in summer.

2. Engine guard

The engine guard is an engine protection device designed according to a variety of different vehicle models. Its design is to prevent the dirt from wrapping the engine. The second is to prevent the engine from being damaged due to the impact of rough roads on the engine during driving. A series of designs are designed to extend the life of the engine and prevent the car from being damaged due to external factors during the trip.

Third, how to choose a qualified engine guard

There are four main types of engine protection board: hard plastic, resin, steel and aluminum alloy. Different material types of protection board, its characteristics are essentially different, I believe you read the following description you will understand what kind of engine protection board.

1. Hard plastic, resin protection board.

The price is relatively cheap, and the production process is simple, but it should be noted that this type of material is more likely to be broken in the winter, and it is vulnerable to damage and can not be repaired after long-term protection.

Advantages: light weight, low price

Disadvantages: easy to damage

2. Steel or manganese alloy protection board.

It should be noted that when choosing this kind of protection board, it is the matching of the design style and the car and the quality of the supporting accessories. We must use the products of regular manufacturers. The guard plate of this kind of material can protect the important parts of the engine and the chassis of the largest Chengdu, but the disadvantage is heavy weight.

Advantages: strong impact resistance

Disadvantages: weight

3. Aluminum alloy protection board.

It should be noted that many beauty shops push for this product. The fancy is the high profit behind its high price, but its hardness is far inferior to the steel protection plate. It is difficult to repair the damage, and the alloy material is extremely complex and difficult to determine its characteristics, but its characteristics are light weight.

Why is the car chassis always hurt? The reason is all here!

Advantages: light weight

Disadvantages: high prices, low material strength

The engine guard is very simple to install, as long as you purchase a guard plate that fits your model, you can install it within 10 minutes, and even you can complete the operation yourself.

Fourth, the chassis armor price is not the same, how to choose?

At present, the price of chassis armor on the market is not uniform, ranging from a few hundred yuan to a thousand dollars, but basically all the materials used in the places where chassis armoring can be carried out are basically similar, except that the manufacturers are different. Generally a relatively good quality chassis armor is priced around 300-800 yuan.

In addition, if you decide to carry out chassis armoring, please be sure to look at the equipment in the construction area. The construction of "chassis armored" is quite complicated. First of all, we must carefully remove the oil from the chassis, use a special detergent to thoroughly remove the asphalt, oil, etc. and dry it. Any neglect of these treatments will affect the firmness of the “armor”. Then the drive shaft and other rotating parts, exhaust pipes and other parts requiring heat dissipation are sealed with adhesive tape or waste newspapers and sprayed. In order to avoid accidental damage, affect their normal operation, and to remove these tapes or newspapers after construction is completed to avoid danger.