Human beings pay more and more attention to environmental protection, energy conservation, safety, and efficiency, but they follow the development of productivity and the improvement of society. There is also a clearer and more familiarity with the drawbacks and deficiencies of acetylene gas exposure. In the 1970s, developed countries in Europe, America, and Japan began to phase out acetylene gas and replace it with industrial gases such as propane, propylene, natural gas, gasoline, coke oven gas, and hydrogen.
The difference in its combustion properties is mainly due to its different molecular structure. The two carbon atoms in the acetylene structure contain two very cleavable π bonds (CH acetylene and propane, butane, and natural gas (methane) in the by-products of catalytic cracking in petrochemical industry. Chemical activity is strong, ≡CH. Low, fast burning, and easy to temper, while the molecular structure of the laser marking machine alkanes contains only relatively indiscriminate σ bonds (such as propane:CH3-CH2-CH3, therefore, its chemical activity, burning speed is not as good as acetylene, back The tendency of the fire is small, precisely because of the difference in the molecular structure, and the difference in the burning speed, resulting in a different distribution of the flame heat.
The safety factor is low and acetylene gas is flammable and explosive. The production process consumes energy and electricity, pollutes the environment, has a high production cost, and has many defects and hidden dangers in production, storage, transportation, use, environmental protection, and price. The development has been greatly limited, so many countries are developing new ones. The safer, more energy-efficient industrial gas, the relevant part of China's national acetylene production meeting clearly no longer approve the newly-built expansion of calcium carbide plant, acetylene plant. The existing manufacturers face the situation of converting production. As early as the 8th Five-Year Plan period, the country strongly promoted the replacement of acetylene gas with alkane gas, such as "Propane Gas", "Propylene Gas" "Natural Gas", etc., in order to gradually replace acetylene gas.
70% is acetylene gas. Previously, acetylene gas was mainly produced in the acetylene generator, which was used in the national industrial gas consumption. Because of the pollution and high degree of insecurity, all parts of the country have issued documents that cannot be adopted (including pipelines). Bottled acetylene gas is currently used for industrial cutting. Acetylene is chemically active, explosive, and extremely dangerous. When it is mixed with metals such as copper and silver, air, and pure oxygen, even a large diameter container can cause an explosion. The use of acetylene gas in the cutting of carbon steel, easy to produce the upper edge of the incision melting, slag is not easy to remove, difficult to clear the surface, such as partial hardening, so that the cutting process is not ideal. Welding needs to be polished, increasing production costs. In recent years, shipyards in the coastal areas have banned the use of acetylene in shipbuilding platforms and switched to other new types of cutting gas. Over the years, people have been trying Beijing's laser cutting and processing of large-scale shear plate bends to try other fuels instead of acetylene as a cutting gas, but because other fuels such as : natural gas, liquefied petroleum gas, propane gas, propylene gas, artificial gas, dimethyl ether, etc. The combustion temperature in oxygen is lower than 2500°C. It is not ideal as a cutting gas directly. It is necessary to add combustion additives to catalyze and crack the mother gas. , Combustion, change the gas combustion method, so that the flame temperature is promoted, so that the flame temperature in the combustion of oxygen reaches or exceeds 3100 °C of acetylene, to achieve the purpose of replacing acetylene acetylene has played an irreplaceable role in the special cutting, acetylene is very For a long period of time, it has become an irreplaceable fuel for industrial cutting, welding, and flame spraying. Such as ductile iron, molybdenum steel, stainless steel and other workpiece cutting. Acetylene in the welding process has a special advantage over other gases. It is easy to operate and has strong compatibility. Because of its fast speed and good quality, flame spray maps are favored by companies in the world.
Thanks to each user's support and trust, Wuhan Linghang CNC will live up to your trust, relying on sincerity, backed by strong technical strength, and committed to creating China's cost-effective, easy to operate, and thoughtful service of CNC cutting equipment; pilot licensing CNC cutting is a CNC cutting machine that can be used by the machining industry and can be used for ordinary oxygen cutting. Excellent product quality, excellent after-sales service, first-class management level, dedicated sales staff to serve you! Each CNC cutting machine has a complete after-sales service commitment and process, we will provide you with affordable prices, high-quality products and comprehensive after-sales service.
The difference in its combustion properties is mainly due to its different molecular structure. The two carbon atoms in the acetylene structure contain two very cleavable π bonds (CH acetylene and propane, butane, and natural gas (methane) in the by-products of catalytic cracking in petrochemical industry. Chemical activity is strong, ≡CH. Low, fast burning, and easy to temper, while the molecular structure of the laser marking machine alkanes contains only relatively indiscriminate σ bonds (such as propane:CH3-CH2-CH3, therefore, its chemical activity, burning speed is not as good as acetylene, back The tendency of the fire is small, precisely because of the difference in the molecular structure, and the difference in the burning speed, resulting in a different distribution of the flame heat.
The safety factor is low and acetylene gas is flammable and explosive. The production process consumes energy and electricity, pollutes the environment, has a high production cost, and has many defects and hidden dangers in production, storage, transportation, use, environmental protection, and price. The development has been greatly limited, so many countries are developing new ones. The safer, more energy-efficient industrial gas, the relevant part of China's national acetylene production meeting clearly no longer approve the newly-built expansion of calcium carbide plant, acetylene plant. The existing manufacturers face the situation of converting production. As early as the 8th Five-Year Plan period, the country strongly promoted the replacement of acetylene gas with alkane gas, such as "Propane Gas", "Propylene Gas" "Natural Gas", etc., in order to gradually replace acetylene gas.
70% is acetylene gas. Previously, acetylene gas was mainly produced in the acetylene generator, which was used in the national industrial gas consumption. Because of the pollution and high degree of insecurity, all parts of the country have issued documents that cannot be adopted (including pipelines). Bottled acetylene gas is currently used for industrial cutting. Acetylene is chemically active, explosive, and extremely dangerous. When it is mixed with metals such as copper and silver, air, and pure oxygen, even a large diameter container can cause an explosion. The use of acetylene gas in the cutting of carbon steel, easy to produce the upper edge of the incision melting, slag is not easy to remove, difficult to clear the surface, such as partial hardening, so that the cutting process is not ideal. Welding needs to be polished, increasing production costs. In recent years, shipyards in the coastal areas have banned the use of acetylene in shipbuilding platforms and switched to other new types of cutting gas. Over the years, people have been trying Beijing's laser cutting and processing of large-scale shear plate bends to try other fuels instead of acetylene as a cutting gas, but because other fuels such as : natural gas, liquefied petroleum gas, propane gas, propylene gas, artificial gas, dimethyl ether, etc. The combustion temperature in oxygen is lower than 2500°C. It is not ideal as a cutting gas directly. It is necessary to add combustion additives to catalyze and crack the mother gas. , Combustion, change the gas combustion method, so that the flame temperature is promoted, so that the flame temperature in the combustion of oxygen reaches or exceeds 3100 °C of acetylene, to achieve the purpose of replacing acetylene acetylene has played an irreplaceable role in the special cutting, acetylene is very For a long period of time, it has become an irreplaceable fuel for industrial cutting, welding, and flame spraying. Such as ductile iron, molybdenum steel, stainless steel and other workpiece cutting. Acetylene in the welding process has a special advantage over other gases. It is easy to operate and has strong compatibility. Because of its fast speed and good quality, flame spray maps are favored by companies in the world.
Thanks to each user's support and trust, Wuhan Linghang CNC will live up to your trust, relying on sincerity, backed by strong technical strength, and committed to creating China's cost-effective, easy to operate, and thoughtful service of CNC cutting equipment; pilot licensing CNC cutting is a CNC cutting machine that can be used by the machining industry and can be used for ordinary oxygen cutting. Excellent product quality, excellent after-sales service, first-class management level, dedicated sales staff to serve you! Each CNC cutting machine has a complete after-sales service commitment and process, we will provide you with affordable prices, high-quality products and comprehensive after-sales service.
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