Why can the carburizing furnace only supply combustible protective gas at high temperatures above 750℃?

Why can the carburizing furnace only supply combustible protective gas at high temperatures above 750℃?

Nowadays, many castings are processed by carburizing furnaces in the production process. During the heat treatment process, the strength of each casting can be improved and the incidence of defects can be reduced. It is now widely used in various fields. Then we will briefly introduce to you why the carburizing furnace can only supply combustible protective gas at a high temperature above 750℃?

The increasingly updated heat treatment technology has made carbon control technology valued by the heat treatment industry.Nowadays, many companies will include carbon potential control equipment in their procurement projects for carburizing equipment.However, the carbon potential control technology has indeed been well used in actual production, but it is not satisfactory.Because the spontaneous combustion temperature of the carrier gases of hydrogen and carbon monoxide in the air in ordinary furnaces can be as high as 740 degrees Celsius, spontaneous combustion can prevent the gas from further mixing with the air and entering the explosion limit to cause an explosion.When mixing below 750, a long-lasting ignition device must be provided for ignition, so 750 is a safe temperature.In the process of using the carburizing furnace, it is the key point to improve the quality of each workpiece. With the continuous improvement of equipment technology, various types of equipment continue to appear on the market, which can be selected according to working conditions, which can effectively improve efficiency.