Spring is warm, dry and windy, belonging to the fire prone period, also for truck users over the Spring Festival after the vehicle parked for a period of time after restart the operations, in a lot of change garments according to the maintenance, the welding construction and maintenance are unavoidable, but this seemingly simple electric welding, there are great security risks.

The accident alarm bells around the forum to remember the lesson

One case: maintenance worker misoperation card truck cab fire

For example, card "Friends of the island city guy," March 22 in the Post said, Dongfeng diamond dump truck because of the chassis of the driving cab welding, in welding process due to repair the error operation resulted in the entire cab fire, all the maintenance down cost 22000 yuan, although by the maintenance workers compensation, but vehicle fire lesson is very profound. Details can read the following posts.

Welders operation error, resulting in a fire. Profound lesson..

Case two: semi trailer with dangerous goods violations caused by the fire

Hebei card friends love there is a place to post, said a tyrant dragon tractor is also due to electric welding caused the fire, it is reported that the car was fitted with dangerous goods. The fire spread very quickly, even next to the car was burned into scrap metal. Details can read the following posts.

Because the fire caused by welding, the hanging half burnt out, it also suffered a car......

Half hung due to electric welding caused the fire... Follow up...

Why - Welding easily lead to process high temperature and splash fire

The two card friends share the real case, are due to the vehicle maintenance in the welding operation, or illegal operation or negligence caused by serious fire. So why is the welding will cause the vehicle on fire?

In the automobile maintenance operations use more manual welding and CO2 gas shielded welding, for example, welded construction, the arc temperature in 6000-8000 DEG C, average temperature of droplet to 2000 DEG C, soluble pool with an average temperature reached 1750 DEG C. The construction near a fuel leak or if it is very easy to ignite flammable combustible combustion. At the same time, because the temperature is very high during the welding process, there are a lot of fire danger. In order to avoid a similar tragedy, so we should pay attention to what matters in the construction?

- a total of five points to note the effect of welding vehicle Mo

1, the cab cargo compartment welding of flammable materials need to be removed or physical separation

In the vehicle cab and cargo compartment for welding maintenance, be sure to remove the flammable materials or physical separation can be carried out welding operations. Such as seat of the cab, plastic decorations more, many vehicles also has items such as bedding, these are flammable, once in the welding operation when exposed to splash the solution drop very easily lead to fires. Also carriage welding needs no air in the carriage can be, the carriage of goods tarpaulin easily contact solution drops caused the fire. If the car is equipped with dangerous goods is strictly prohibited welding operations.

2, vehicle chassis welding operation attention line

General vehicle chassis will all piping and wiring harness layout, on the vehicle itself in the use process, oil or lubricating oil leakage happens, especially some of the old models, the electrical wiring and piping are greasy. When welding in the chassis, if contact welding slag splashing to the fuel oil leakage or with a wire, tape, and so on, but also easy to cause a fire. So in the chassis welding must pay attention to similar places, in advance to do a good job cleaning up the work.

3, the fuel tank is very dangerous to be sure to find a professional technician

When the vehicle's fuel tank damaged when, looking for welding repair welding of oil tank, damage to the tank can to continue to use. But be sure to clean the fuel tank when the tank is welded, and fill the tank with water, open the fuel tank cap for welding operation. This work must be looking for experienced welders.

There may be people who have doubts, diesel tank welding is not a gasoline tank needs so much trouble, I look at other people simple welding is no problem. Remember do not have this kind of luck, when the fuel tank welding, which if there is diesel, once subjected to high temperatures will be split into a variety of mixed gases, to achieve a certain percentage will produce an explosion. Its power is no less than a bomb.

Before 4, the total power broken protection welding electrical system

In the vehicle for welding operation, the operation of the vehicle power is also very necessary, especially now the vehicle electronic control system is more and more complex, a variety of sophisticated control module, ECU, if in the welding operation of vehicle power supply continuous electricity words, welding current generated in the process can easily lead to damage to the ECU electronics. In addition, the welding line should be in accordance with the nearest principle of welding points, so as not to damage the electrical line. About vehicle power can refer to the article "battery power failure to pay attention to the wrong operation will damage the electrical appliances".

5 fire extinguishers, flammable materials should be isolated prepared against want the scene

Automotive electrical welder working site must be kept dry and clean, good ventilation and lighting. When welding, we should pay attention to the fire danger, molten metal splashing and heating of the welding head are likely to fall into the combustible material and cause combustion. Walls and the surrounding should be non flammable and explosive materials, such as the need for timely isolation or removal, so as to ensure safe operation.

In case, it is best to put a fire extinguisher next to the fire, once the fire, you can quickly control the fire, to avoid further expansion of the loss. At the same time, the arc will emit harmful to the human body infrared, ultraviolet and strong light, there will be a splash, need to do a good job of protection.