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The stamping type tungsten boat is to apply pressure to the tungsten plate with the help of regular or special stamping equipment to make it produce plastic deformation in the stamping die, so as to obtain the finished size of the tungsten boat.
Folding tungsten boat is the shape of the boat after repeated folding and forging of the tungsten plate, the two ends of the tungsten plate are folded and processed. The permeability of the folded tungsten boat is strong. The folded end is generally small rounded or branched. Different from other types of tungsten boats, this type of tungsten boat is generally composed of a tungsten boat cover and a tungsten boat body. The general tungsten boat cover is provided with evaporation holes, the evaporation holes are round holes, the hole diameter is 1mm, and the hole spacing can be set to 2mm.
Welding type tungsten boat is also called heating tungsten boat. Welding is to directly melt the connecting parts of the two metals together at high temperature, heat and pressurize the five tungsten plates at high temperature, so that the joints can be melted together, and then cooled after welding to finally form the shape of a boat. However, the welding tungsten boat takes a long time and cannot be made at one time. The welding of pure tungsten is generally divided into two processes: welding and brazing. The size of this type of tungsten boat is relatively large.
Riveting is to connect two or more metals with nails, and tungsten rivets are generally used to connect tungsten plates.
Sintered tungsten boat is mainly used in the production of tungsten powder.
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