Shaped charge liner and shaped charge incorporating same

Patent metadata

Field	Value
Publication number	US-2018193909-A1
Application number	US-201715831830-A
Country	US
Kind code	A1
Filing date	Dec 5, 2017
Priority date	Jan 12, 2017
Publication date	Jul 12, 2018
Grant date	—

Abstract

A shaped charge liner including a composition of powders. The composition may include one or more of an aluminum metal powder and a titanium metal powder, a bronze metal powder, a tungsten metal powder and a graphite powder. Each powder of the composition may include grain size ranges that are different from one or more other powder grain size ranges. The bronze metal powder may include two or more different grain size ranges, and in some instances three or four different grain size ranges. A method of making the shaped charge liner and shaped charge with such liner having the composition of powders is also disclosed, as is a shaped charge including such shaped charge liner.

First claim

What is claimed is:

1 . A shaped charge liner having a composition comprising metal powders, the composition comprising:
one or more of an aluminum metal powder and a titanium metal powder, wherein each of the aluminum metal powder and the titanium metal powder comprise a grain size range from 50 micrometers to 150 micrometers; a first bronze metal powder comprising a grain size range of 160 micrometers to 179 micrometers; a second bronze metal powder comprising a grain size range of 125 micrometers to 159 micrometers; and a tungsten metal powder comprising a grain size up to 200 micrometers; and a graphite powder comprising a grain size up to 100 micrometers.

2 . The shaped charge liner of claim 1 , wherein at least one of the titanium metal powder and the aluminum metal powder is present in an amount up to 10% w/w of the composition.

3 . The shaped charge liner of claim 1 , wherein the first and second bronze metal powders combined, is present in an amount up to 35% w/w of the composition.

4 . The shaped charge liner of claim 1 , wherein the composition further comprises a third bronze metal powder having a different grain size range than the first and second bronze metal powder grain size range.

5 . The shaped charge liner of claim 1 , wherein at least 2% to 10% w/w of the composition is the first bronze metal powder and at least 2% to 10% w/w of the composition is the second bronze metal powder.

6 . The shaped charge liner of claim 1 , wherein the tungsten metal powder is present in an amount up to 70% w/w of the composition.

7 . The shaped charge liner of claim 1 , wherein the composition further comprises a lead metal powder.

8 . The shaped charge liner of claim 2 , wherein the aluminum metal powder is present in an amount up to 5% to 10% w/w of the composition and the first and second bronze metal powders, combined, are present in an amount up to 35% w/w of the composition.

9 . The shaped charge liner of claim 1 , wherein the titanium metal powder is present in an amount of 5% to 10% w/w of the composition.

10 . The shaped charge liner of claim 1 , wherein the graphite powder is present in an amount between 0.5% to 5% w/w of the composition.

11 . A shaped charge liner having a composition comprising metal powders, the composition comprising:
one or more of an aluminum metal powder and a titanium metal powder, wherein each of the aluminum metal powder and the titanium metal powder comprise a grain size range from 50 micrometers to 150 micrometers; a bronze metal powder comprising two or more different grain size ranges; a lead metal powder comprising one or more different grain size ranges; a tungsten metal powder comprising a grain size up to 200 micrometers; and a graphite powder comprising a grain size up to 100 micrometers, wherein the shaped charge liner is free of a nickel metal powder.

12 . The shape charge liner of claim 11 , wherein the bronze metal powder is present in an amount up to 35% w/w of the composition.

13 . The shaped charge liner of claim 11 , wherein the bronze metal powder comprises a first grain size range and a second grain size range, wherein
the first and second grain size ranges are selected from the ranges comprising 50 micrometers to 150 micrometers, 100 micrometers to 124 micrometers, 125 micrometers to 159 micrometers, 160 micrometers to 179 micrometers, and 180 micrometers to 250 micrometers, the first grain size range is at least 5% to 15% w/w of the composition and the second grain size range is at least 2% to 10% w/w of the composition, and the first grain size range is different from the second grain size range.

14 . The shaped charge liner of claim 11 , wherein at least one of the titanium metal powder and the aluminum metal powder comprises a grain size range between 50 micrometers and 125 micrometers.

15 . The shaped charge liner of claim 11 , wherein at least one of the titanium metal powder and the aluminum metal powder is present in an amount of 5% to 10% w/w of the composition.

16 . A shaped charge comprising:
a case having a cavity; an explosive load disposed within the cavity of the case; and a liner disposed adjacent the explosive load and configured for retaining the explosive load within the cavity of the case, the liner having a composition comprising metal powders, wherein the liner being free of a nickel metal powder and the composition comprises:
one or more of an aluminum metal powder and a titanium metal powder, wherein each of the aluminum metal powder and the titanium metal powder comprises a grain size range from 50 micrometers to 150 micrometers;
a first bronze metal powder comprising a grain size range of 160 micrometers to 179 micrometers;
a second bronze metal powder comprising a grain size range of 125 micrometers to 159 micrometers;
a tungsten metal powder comprising a grain size up to 200 micrometers; and
a graphite powder comprising a grain size up to 100 micrometers.

17 . The shaped charge of claim 16 , wherein at least 2% to 10% w/w of the composition is the first bronze metal powder and at least 2% to 10% w/w of the composition is the second bronze metal powder.

18 . The shaped charge of claim 16 , wherein at least one of the titanium metal powder and the aluminum metal powder is present in an amount up to 10% w/w of the composition.

19 . The shaped charge of claim 16 , wherein the first and second bronze metal powders, combined, is present in an amount up to 35% w/w of the composition.

20 . The shaped charge of claim 16 , wherein the composition further comprises a lead metal powder.

Assignees

• Dynaenergetics Gmbh & Co Kg

Inventors

• Loehken Joern Olaf

Classifications

• B22F5/106

  Tube or ring forms · CPC title

• B22F3/093

  using vibrations {or friction} · CPC title

• E21B43/117

  Shaped-charge perforators (E21B43/118 takes precedence) · CPC title

• B22F3/16

  in successive or repeated steps · CPC title

• B22F3/06

  by centrifugal forces · CPC title