Tube furnace classification

 1. Direct-fired tube furnace: The direct-fired tube furnace directly transfers the heat generated by fuel combustion to the pipe through the burner to achieve heating. Its advantages are high thermal efficiency and fast heating speed, which is suitable for processes that require high heating speed. Common direct-fired tube furnaces include natural gas tube furnaces, heavy oil tube furnaces, etc.Vacuum Brazed Diamond Tools ⒉Indirect combustion tube furnace: The indirect combustion tube furnace transfers the heat generated by fuel combustion to the heating medium through the burner, and then transfers the heat to the pipe through the heating medium to achieve heating. The advantage is that the exhaust gas generated by combustion does not come into contact with the heated materials, thus avoiding problems such as pollution and oxidation. Common indirect combustion tube furnaces include gas hot blast stoves, oil hot blast stoves, etc.Effect of vacuum heat treatment on the properties of powder metallurgy products 1. Gas tube furnace: Gas tube furnace is a method of heating pipes by using high-temperature combustion gas generated by burning gas. The advantage is that it heats up quickly temperature control.Optimizing vacuum heat treatment of spring steel Precise control, suitable for heating processes with high temperature requirements. Common gas tube furnaces include natural gas tube furnaces, liquefied petroleum gas tube furnaces, etc. ⒉ Liquid tube furnace: Liquid tube furnace is a method of heating pipes by using high-temperature combustion gas generated by burning liquid fuel. The advantage is that it has a wide variety of fuel types and a wide range of applications. At the same time, the heating temperature can be adjusted by controlling the fuel supply. Common liquid tube furnaces include fuel tube furnaces, diesel tube furnaces, etc.Heat treatment process for wide and thick plates

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