KR100908112B1 - 탄체 파쇄충전물의 제조방법 및 그 탄체 파쇄충전물이내장된 연습용 탄 - Google Patents
탄체 파쇄충전물의 제조방법 및 그 탄체 파쇄충전물이내장된 연습용 탄 Download PDFInfo
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- KR100908112B1 KR100908112B1 KR1020070055581A KR20070055581A KR100908112B1 KR 100908112 B1 KR100908112 B1 KR 100908112B1 KR 1020070055581 A KR1020070055581 A KR 1020070055581A KR 20070055581 A KR20070055581 A KR 20070055581A KR 100908112 B1 KR100908112 B1 KR 100908112B1
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- KR
- South Korea
- Prior art keywords
- powder
- carbon
- filler
- practice
- shredding
- Prior art date
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B8/00—Practice or training ammunition
- F42B8/12—Projectiles or missiles
- F42B8/14—Projectiles or missiles disintegrating in flight or upon impact
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/12—Both compacting and sintering
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C27/00—Alloys based on rhenium or a refractory metal not mentioned in groups C22C14/00 or C22C16/00
- C22C27/04—Alloys based on tungsten or molybdenum
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Powder Metallurgy (AREA)
Abstract
Description
Claims (6)
- 텅스텐 또는 철계 분말에 니켈, 구리, 몰리브텐, 카본, 인 분말 중 선택된 1종 이상의 분말을 혼합하는 단계;상기 과정에서 혼합된 분말 혼합물을 금형 압축 성형 또는 냉간 정수압 성형을 통해 분말 성형체를 성형하는 단계;100 ~ 1500℃의 온도조건 및 불활성 또는 환원성 분위기를 유지하는 소결로에서 상기 분말성형체를 소결시키는 단계; 및상기 소결과정을 거친 소결체를 탄체 내부 공간에 장착할 수 있는 크기 및 형상으로 기계가공하는 단계;를 포함하며,상기 텅스텐 또는 철계 분말에 니켈, 구리, 몰리브텐, 카본, 인 분말 중 선택된 1종 이상의 분말을 혼합하는 단계는, 텅스텐 또는 철계 분말 70 ~ 99중량%에 니켈, 구리, 몰리브덴, 카본, 인 분말 중 선택된 1종 이상의 분말을 그 나머지 중량% 내에서 혼합하는 것을 특징으로 하는 탄체 파쇄충전물의 제조방법.
- 삭제
- 제 1 항에 있어서,상기 텅스텐 또는 철계 분말에 니켈, 구리, 몰리브텐, 카본, 인 분말 중 선택된 1종 이상의 분말을 혼합하는 단계에서 혼합 분말의 부피대비 1 ~ 30부피%의 바인더를 더 첨가하는 것을 특징으로 하는 탄체 파쇄충전물의 제조방법.
- 제 1 항에 있어서,상기 소결체의 밀도는 5g/㎤ ~ 12g/㎤ 인 것을 특징으로 하는 탄체 파쇄충전물의 제조방법.
- 연습용 탄에 있어서,기존의 연습용 탄과 그 외형이 같고 알루미늄계 소재로 이루어진 중공의 탄체 내부에 이 탄체의 중량조절을 위해 제1항, 제3항 또는 제4항 중 어느 하나의 제조방법을 통해 제조된 탄체 파쇄충전물이 내장된 연습용 탄.
- 제 5 항에 있어서,상기 탄체 파쇄충전물은 내부에 중공을 갖는 튜브형태로 이루어진 것을 특징으로 하는 탄체 파쇄충전물이 내장된 연습용 탄.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020070055581A KR100908112B1 (ko) | 2007-06-07 | 2007-06-07 | 탄체 파쇄충전물의 제조방법 및 그 탄체 파쇄충전물이내장된 연습용 탄 |
Applications Claiming Priority (1)
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KR1020070055581A KR100908112B1 (ko) | 2007-06-07 | 2007-06-07 | 탄체 파쇄충전물의 제조방법 및 그 탄체 파쇄충전물이내장된 연습용 탄 |
Publications (2)
Publication Number | Publication Date |
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KR20080107616A KR20080107616A (ko) | 2008-12-11 |
KR100908112B1 true KR100908112B1 (ko) | 2009-07-16 |
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KR1020070055581A KR100908112B1 (ko) | 2007-06-07 | 2007-06-07 | 탄체 파쇄충전물의 제조방법 및 그 탄체 파쇄충전물이내장된 연습용 탄 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011085072A3 (en) * | 2010-01-06 | 2011-09-29 | Ervin Industries, Inc. | Frangible, ceramic-metal composite objects and methods of making the same |
US8468947B2 (en) | 2010-01-06 | 2013-06-25 | Ervin Industries, Inc. | Frangible, ceramic-metal composite objects and methods of making the same |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101351518B1 (ko) * | 2012-01-20 | 2014-01-15 | 주식회사 풍산 | 파쇄체 및 이를 구비하는 연습용 탄 |
KR101350718B1 (ko) * | 2012-01-20 | 2014-01-15 | 주식회사 풍산 | 파쇄체 및 이를 구비하는 연습용 탄 |
KR101458269B1 (ko) * | 2012-04-02 | 2014-11-04 | 주식회사 풍산 | 연습용 포탄 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5399187A (en) * | 1993-09-23 | 1995-03-21 | Olin Corporation | Lead-free bullett |
US5760331A (en) * | 1994-07-06 | 1998-06-02 | Lockheed Martin Energy Research Corp. | Non-lead, environmentally safe projectiles and method of making same |
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- 2007-06-07 KR KR1020070055581A patent/KR100908112B1/ko active IP Right Review Request
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5399187A (en) * | 1993-09-23 | 1995-03-21 | Olin Corporation | Lead-free bullett |
US5760331A (en) * | 1994-07-06 | 1998-06-02 | Lockheed Martin Energy Research Corp. | Non-lead, environmentally safe projectiles and method of making same |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011085072A3 (en) * | 2010-01-06 | 2011-09-29 | Ervin Industries, Inc. | Frangible, ceramic-metal composite objects and methods of making the same |
US8468947B2 (en) | 2010-01-06 | 2013-06-25 | Ervin Industries, Inc. | Frangible, ceramic-metal composite objects and methods of making the same |
Also Published As
Publication number | Publication date |
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KR20080107616A (ko) | 2008-12-11 |
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