Synergy methane for metal welding

Abstract

The invention relates to synergistic firedamp for welding metal, wherein the components and percentage by volume are that firedamp 70-80%, liquefied natural gas 10%-14%, carbon tetrachloride 8%-12% and water 2%-4%. The cutting speed of the invention is 30% faster than acetylene gas, gas consumption saves 50% combustion gas than natural gas or pure propane with the same volume, explosion limit scope is one eighth of acetylene, the products of the invention have high burning points, which do not temper, has no black smoke when in burning, and do not produce harmful matters, safety coefficient is 8 times more than oxyacetylene, boiling point is -160 DEG C, the products can not break firing even if in cold environment, and the products have high pressure and light specific gravity, which can satisfy the requirement of high-lift operation, flame temperature reaches 3460 DEG C, cutting work surface is smooth, and deformation is little, superficial hardness is basically constant after workpiece is processed, the products has excellent welding spoon and excellent forming, which is easy to scrum and can penetrate, the production cost is 60% lower than acetylene gas, and is lower more than 40% than propane. The synergistic firedamp can be applied in cutting metal, boring, welding, thermal orthopedic, quenching, thermally processing, processing glass and the like.

Description

technical field [0001] The invention relates to a gas product for metal welding and cutting, in particular to a synergistic methane for metal welding and cutting with methane as the main component. Background technique [0002] Since the French scientist Picaman applied oxygen-acetylene gas to metal welding and cutting in 1903, acetylene gas has become the main gas for metal welding in the world, and has a monopoly in the field of industrial gas in the world for more than 100 years. Relevant data show that 85% of the industrial gas we currently consume is acetylene gas, but there are several fatal weaknesses in the production and use of acetylene gas: high cost, high energy consumption, 3500-3800 degrees of electricity per ton of acetylene gas production, 1.5 tons of coke; the pollution is serious, and every ton of acetylene gas produced will produce 3.5 tons of contaminated residue and 16 tons of polluted water, which is a major industrial pollution source; the safety factor...

AI Technical Summary

Problems solved by technology

However, oxygen-propane welding and cutting also has several major weaknesses: (1) The cutting warm-up is slow, the cutting effect is not ideal when cutting thicker black carbon steel and the weather is colder, the cutting temperature does not meet the requirements, and the work efficiency is not high ; (2) The welding effect is not good, and the welding quality is low

This also makes it difficult to popularize the oxygen-propane cutting technology in a large area

[0004] In recent years, in order to change the many weaknesses of acetylene and oxygen-propane welding and cutting, many scientific research institutes, colleges and universities, and well-known entrepreneurs have successively researched and developed different types of industrial efficiency-enhancing gas, and various All kinds of cutting gas, but the result often ends in failure. The main reason is that the quality is not good enough, and the effect of substantial efficiency increase has not been achieved.

Images