Method for induction heating fusion-cast welding of copper-tungsten mold
A technology of induction heating and induction coil, which is applied in the field of induction heating melting and casting welding in copper-tungsten molds, can solve the problems of slag inclusion at the bonding interface, unstable bonding strength and performance, and can not guarantee the welding rate, etc., and achieve stable bonding performance , Reduce interfacial stress, excellent quality effect
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[0029] Example 1,
[0030] in Pure copper layer on the surface of diameter powder metallurgy tungsten rod cylindrical body:
[0031] The graphite mold is processed, and the mold size is: outer diameter 25mm, inner diameter 19mm, height 25mm, and bottom thickness 6mm. Thread the bottom of the tungsten rod, the specification is The same car as at the bottom of the graphite mold internal thread. Before welding, clean the tungsten rod, copper ring and mold. Firstly, acetone cleans to remove oil stains, and then follows concentrated sulfuric acid (95%-97%): concentrated hydrochloric acid (38%): water=15:15:70 (volume ratio) The ratio of) is prepared for cleaning with cleaning solution, after cleaning, the fastening connection between the tungsten rod and the forming mold is realized through the thread. The copper rod is processed, the size is 18mm outside diameter, 6mm inside diameter, and 15mm height. Place it in the forming mold and cover the tungsten rod, such as figure 2 . Fi...
Example Embodiment
[0032] Example 2,
[0033] in Pure copper layer on the surface of diameter powder metallurgy tungsten rod cylindrical body:
[0034] The graphite mold is processed, and the mold size is: outer diameter 25mm, inner diameter 19mm, height 25mm, and bottom thickness 6mm. Thread the bottom of the tungsten rod, the specification is The same car as at the bottom of the graphite mold internal thread. Before welding, clean the tungsten rod, copper ring and mold. Firstly, acetone cleans to remove oil stains, and then follows concentrated sulfuric acid (95%-97%): concentrated hydrochloric acid (38%): water=15:15:70 (volume ratio) The ratio of) is prepared for cleaning with cleaning solution, after cleaning, the fastening connection between the tungsten rod and the forming mold is realized through the thread. Process the copper rod, the size is 18mm in outer diameter, 8mm in inner diameter, and 15mm in height. Place it in the forming mold and cover it outside the tungsten rod, such as fi...
Example Embodiment
[0035] Example 3.
[0036] in Pure copper layer on the surface of diameter powder metallurgy tungsten rod cylindrical body:
[0037] The graphite mold is processed, and the mold size is: outer diameter 25mm, inner diameter 19mm, height 25mm, and bottom thickness 6mm. Thread the bottom of the tungsten rod, the specification is The same car as at the bottom of the graphite mold internal thread. Before welding, clean the tungsten rod, copper ring and mold. Firstly, acetone cleans to remove oil stains, and then follows concentrated sulfuric acid (95%-97%): concentrated hydrochloric acid (38%): water=15:15:70 (volume ratio) The ratio of) is prepared for cleaning with cleaning solution, after cleaning, the fastening connection between the tungsten rod and the forming mold is realized through the thread. Process the copper rod with dimensions of 18mm outer diameter, 11mm inner diameter, and 15mm height, and place it in the forming mold and cover the tungsten rod, such as figure 2 . ...
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