Waterjet cutting is the way to cut

Cold cutting is a common cutting method. It adopts the technical means or method that does not produce high temperature in the cutting process to keep the original material characteristics. There is no drastic temperature rise change in the cutting process, and the temperature rise is usually no more than 40 ℃. I call it safe cutting. The premise of safe cutting is that there is no high temperature, open fire and static electricity is controlled within a very low range (because static electricity cannot be completely eliminated, it can only be controlled within the energy range that cannot ignite inflammables and explosives), The cutting impact force shall be as small as possible, and the friction in the cutting process shall quickly absorb temperature and static electricity.

There are many kinds of cold cutting tools, such as water-cooled saw blade cutting machine, water-cooled cutting saw, hydraulic water-cooled cutting saw, water cutting, wire cutting, etc. Although many cutting tools can achieve the purpose of cold cutting operation, they have much higher requirements for operation in flammable and explosive environment. Forms such as grinding wheel, saw blade and drilling can no longer meet the operation requirements, because there is a risk of high-temperature spark or local temperature rise in their operation process, such as the cutting operation of gas or explosive chemicals.

Many people have great misunderstandings about cold cutting machines and tools, especially the safe cutting operation, such as the cold cutting machines and tools positioned by the public security system and armed police fire control. Because some applications of public security special police and armed police fire control are to destroy explosives or operate in the environment with combustible gas, the requirements should be very strict, but many people mistakenly classify hydraulic saw, fuel machine cutting saw and water cooling plasma as safe cold cutting machines and tools, This is extremely dangerous. There is a vital difference between cold cutting and safe cold cutting.

The most ideal cutting machine is waterjet cutting, which is divided into ultra-high pressure water cutting and low-pressure water cutting. Due to the danger of static electricity caused by high-pressure impact and high-speed friction of jet, only low-pressure water cutting has real safe cold cutting. It is aimed at cutting equipment without heat, high temperature and danger in petroleum, natural gas and chemical industries The principle is that ordinary water is pressurized to cut various materials. Because the main medium used is water, it has excellent safety and environmental protection.