A kind of lead-free environment-friendly high-density bullet and its preparation method
A high-density, environment-friendly technology, applied to ammunition, warheads, offensive equipment, etc., can solve problems such as low strength of projectiles and damaged barrels, and achieve the effects of avoiding direct friction, pollution, and energy consumption
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Embodiment 1
[0041] The formulation of the lead-free environment-friendly high-density bullet base material is:
[0042]
[0043] The preparation method of the lead-free environment-friendly high-density bullet comprises the steps of:
[0044] (1) Blending of ingredients: Weigh the quality of various raw materials according to the formula, and mix them evenly in a high-speed mixer to obtain a mixture.
[0045] (2) Extrusion granulation: Put the mixture into a twin-screw extruder, extrude and pelletize at 180°C to obtain injection feed granules.
[0046] (3) Injection molding: The injection feed particles are injected and molded through an injection machine at 200°C to obtain lead-free, environmentally friendly, high-density blanks.
[0047] (4) Preform shaping: Grinding the obtained lead-free environment-friendly high-density preform to remove the injection gate to obtain a preformed preform.
[0048] (5) Copper plating on the spring blank: the surface of the plastic blank is firstly ...
Embodiment 2
[0052] The formulation of the lead-free environment-friendly high-density bullet base material is:
[0053]
[0054]
[0055] The preparation method of the lead-free environment-friendly high-density bullet comprises the steps of:
[0056] (1) Blending of ingredients: Weigh the quality of various raw materials according to the formula, and mix them evenly in a high-speed mixer to obtain a mixture.
[0057] (2) Extrusion granulation: put the mixture into a twin-screw extruder, extrude and pelletize at 260°C to obtain injection feed granules.
[0058] (3) Injection molding: The injection feed particles are injected and molded through an injection machine at 290°C to obtain lead-free, environmentally friendly, high-density blanks.
[0059] (4) Preform shaping: Grinding the obtained lead-free environment-friendly high-density preform to remove the injection gate to obtain a preformed preform.
[0060] (5) Copper plating on the spring blank: the surface of the shaped blank is...
Embodiment 3
[0065] The formulation of the lead-free environment-friendly high-density bullet base material is:
[0066]
[0067] The preparation method of the lead-free environment-friendly high-density bullet comprises the steps of:
[0068] (1) Blending of ingredients: Weigh the quality of various raw materials according to the formula, and mix them evenly in a high-speed mixer to obtain a mixture.
[0069] (2) Extrusion granulation: Put the mixture into a twin-screw extruder, extrude and pelletize at 180°C to obtain injection feed granules.
[0070] (3) Injection molding: The injection feed particles are injected and molded through an injection machine at 200°C to obtain lead-free, environmentally friendly, high-density blanks.
[0071] (4) Preform shaping: Grinding the obtained lead-free environment-friendly high-density preform to remove the injection gate to obtain a preformed preform.
[0072] (5) Copper plating on the spring blank: firstly carry out chemical copper plating on...
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