Deep overcooling treatment method for fine grain copper alloy shaped charge liner
A technology of deep subcooling treatment and liner cover, which is applied in the direction of explosive charge, weapon accessories, offensive equipment, etc. High-level problems, to avoid uneven nucleation rate, good organization uniformity, and high production efficiency
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[0029] The present invention will be further described below in conjunction with embodiments.
[0030] A method for preparing a fine-grained copper alloy drug type cover is carried out according to the following steps:
[0031] (1) Preparation of raw materials: the medicine cover is a single-cone thin-walled structure, the large end size is φ146mm, height 120mm, inner cone depth 106mm, taper 60°, maximum wall thickness 4.5mm, selected according to the structural characteristics of the designed forming part The rolled T2 copper rod of φ60mm is the raw material, and the outer surface is cut and turned into a blank with a diameter of φ58mm and a length of 80mm; the impurity element content of the T2 copper rod is shown in Table 1, and the microstructure is as shown in figure 1 Shown.
[0032] Table 1 Impurity element content of T2 copper bar
[0033]
[0034] (2) Composite cold extrusion plastic deformation: Put the blank obtained in step (1) into the cavity of the preform forming die, a...
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