A large amount of high temperature and dust will be generated during welding and cutting. For example, if the temperature is high, you need to avoid some flammable substances at the work site. You need to carefully inspect the site before and after the work, and perform welding and cutting operations in a standardized manner; if there is dust, you need to use special industrial dust removal equipment to prevent it. .
(1) The location of the fire or explosion and the characteristics of the materials causing the fire or explosion should be identified, and the fire alarm number 119 should be called quickly.
(2) Before the firefighters arrive, emergency personnel should take effective methods to control the spread of the accident based on the characteristics of the fire or explosive material, such as cutting off the power supply, evacuating oxygen bottles, acetylene bottles, etc. from the accident site. For equipment that is prone to explosion due to heat, use fire extinguishing equipment correctly.
(3) During emergency handling, a dedicated person must be responsible for unified command to prevent confusion.
(4) When putting out a fire, measures should be taken to prevent poisoning, collapse, falling and injury, etc.
Extended information:
Resistance welding was developed in the last decade of the 19th century. The first patent for resistance welding was applied for by Elihu Thomson in 1885. , he continued to improve the technology over the next 15 years. Thermite welding and combustible gas welding were invented in 1893. Edmund Davy discovered acetylene in 1836.
By around 1900, due to the emergence of a new type of gas torch, combustible gas welding began to be widely used. Combustible gas welding has been one of the most popular welding techniques since its inception due to its cheapness and good mobility. However, as the 20th century progressed, engineers continued to improve the metal coating technology on the electrode surface (ie, the development of flux).
The new electrode can provide a more stable arc and can effectively isolate the base metal and impurities. Therefore, arc welding can gradually replace combustible gas welding and become the most widely used industrial welding technology.
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