The structure and technical advantages of stainless steel tube annealing furnace

The structure and technical advantages of stainless steel tube annealing furnace

Structure description of stainless steel tube annealing furnace:

　　The stainless steel tube annealing furnace is mainly composed of a discharge rack, a heating furnace body, a water-jacketed cooling box, and a receiving mechanism.

The stainless steel coil bright annealing furnace uses four-zone temperature control, silicon carbide rods or spiral resistance wires are used as heating elements, and the heating temperature can reach 1150℃. The furnace core tube is made of high-temperature resistant stainless steel 310S tube, single layer along the length of the heating furnace Layout, the annealing tube passes through the furnace core tube and is heated.

　　The protective gas adopts an ammonia decomposition furnace to heat liquid ammonia and decompose to obtain a hydrogen-nitrogen mixture containing 75% hydrogen and 25% nitrogen, which is simultaneously sent into the furnace core tube. The furnace body has a split structure, which is convenient for maintenance, and the furnace body has good airtightness, low heat loss and good heat preservation.

　　In order to cool the annealed stainless steel coil quickly, the annealing furnace is equipped with a water-cooled box, and a stainless steel tube is installed inside as a cooling tube. The annealing tube can be cooled to obtain a supersaturated stainless steel solid solution to achieve the required hardness and brightness.

　　 A special winding unit is installed at the rear of the water-cooled box. After annealing, the pipe can be coiled in a disk, and there is a hydrogen protection input device to prevent the inner hole of the pipe from being oxidized, and hydrogen is fed into the inner hole of the pipe for protection while being coiled to ensure the inner and outer brightness of the annealed pipe.

The continuous bright annealing furnace for stainless steel coils is mainly used for the bright heat treatment of stainless steel coils, stainless steel wires and other stainless steel wires and tubes.

Technical advantages of stainless steel tube annealing furnace:

　　1. Stainless steel tube bright annealing equipment adopts internationally renowned Siemens IGBT power devices and unique inverter technology. It is designed with 99% load continuity rate and can be used for high-power production for 24 hours of uninterrupted operation. The product quality is reliable.

　　2. The automatic control type can adjust heating time, heating power, holding time, holding power and cooling time; it greatly improves the quality of heating products and the repeatability of heating, and simplifies the operation technology of workers.

　　3. The equipment is light in weight, small in size and simple to install. It can be completed in a few minutes by connecting to a 380V three-phase power supply, water inlet and water outlet.

　　4. The stainless steel bright annealing system occupies a very small area, is easy to operate, and can be learned in a few minutes.

　　5. The stainless steel tube bright annealing furnace is safe and the output voltage is lower than 36V, avoiding the risk of high-voltage electric shock.

　　6. The heating efficiency of the steel tube annealing furnace is as high as 90% or more, and the energy consumption is only 20%-30% of the high frequency of the old electronic tube. There is almost no electricity in the standby state, and it can work continuously for 24 hours.