Deep conical copper shaped charge liner tissue ultrafine crystallization gradient control method

• Main Authors: ZHAO QIANG, SHU DAYU, CHE LUCHANG, LI HUI, CHEN QIANG, HU CHUANKAI, WU YANG, ZHAO ZUDE
• Format: Patent
• Language: Chinese; English
• Published: 11.09.2018
• Subjects: CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS ANDNON-FERROUS ALLOYS; CHEMISTRY; FERROUS OR NON-FERROUS ALLOYS; METALLURGY; TREATMENT OF ALLOYS OR NON-FERROUS METALS

The invention provides a deep conical copper shaped charge liner tissue ultrafine crystallization gradient control method, which comprises the steps of extrusion shaping, re-crystallization heat treatment and high-frequency percussion, wherein in the extrusion shaping step, multi-pass extrusion is used; the high-frequency impact knocking speed is 15000 to 40000 times/minute; the knocking force is1200 to 2000 N; the times is 1 to 3 times. The control technology provided by the invention realizes the deep conical copper shaped charge liner shaping and surface quality control; the material plasticity is improved; the fine crystal tissues can be obtained; the ultrafine crystal gradient tissues distributed in the thickness direction are formed on the surface layer in the charge shaped liner. The ultrafine crystal gradient tissues distributed in the thickness direction of the charge shaped liner are obtained by using the method; the tissue distribution in the bus direction is uniform; a novel preparation method is