| Pages:
1
..
66
67
68 |
PLSHY
Hazard to Self
Posts: 96
Registered: 30-7-2023
Member Is Offline
|
|
|
|
|
PLSHY
Hazard to Self
Posts: 96
Registered: 30-7-2023
Member Is Offline
|
|
I wrote an article about the introduction to shaped charges. It is about 54,000 words (in Chinese). Since the lossless version is too large to send,
this is the compressed version. The file size has also increased after translation, so I can only send the Chinese version. You can use Google
Translate to translate it. The lossless version can be found in Z library by searching "聚能装药入门"
Attachment: shape charge chinese.pdf (6MB)
This file has been downloaded 60 times
|
|
|
Laboratory of Liptakov
International Hazard
Posts: 1420
Registered: 2-9-2014
Location: Tel Aviv University
Member Is Offline
Mood: old jew
|
|
The copper insert looks very nice and accurate. And the filling was what if it's not a secret? ... Colorized PETN/ ETN ?
Development of primarily - secondary substances: CHP (2015) neutral CHP and Lithex (2022) Brightelite (2023) Nitrocelite and KC primer (2024) Diper
60 (2025)
|
|
|
PLSHY
Hazard to Self
Posts: 96
Registered: 30-7-2023
Member Is Offline
|
|
If you are referring to the picture I published in
March this year, the filler is PETN plastic explosive. If you are referring to Chapter 4 of the article I wrote, it is also PETN plastic explosive,
using 5%PIB 5%DOS and oil 0.1% red pigment. However, the plastic explosive in Chapter 4 of the article has a higher density because the PETN crystals
are more rounded.
|
|
|
greenlight
National Hazard
Posts: 758
Registered: 3-11-2014
Member Is Offline
Mood: Energetic
|
|
Beautiful symmetrical liner there.
What kind of densities were you pulling with the PIB binder and dioctyl sebacate plasticizer?
I've been trying to find DOS or DOA but it's hard to find in small quantities.
Be good, otherwise be good at it 
|
|
|
Laboratory of Liptakov
International Hazard
Posts: 1420
Registered: 2-9-2014
Location: Tel Aviv University
Member Is Offline
Mood: old jew
|
|
Thanks, PLSHY . You use even dioctylsebakate...Almost profi mixture and device......
Development of primarily - secondary substances: CHP (2015) neutral CHP and Lithex (2022) Brightelite (2023) Nitrocelite and KC primer (2024) Diper
60 (2025)
|
|
|
PLSHY
Hazard to Self
Posts: 96
Registered: 30-7-2023
Member Is Offline
|
|
Quote: Originally posted by greenlight  | Beautiful symmetrical liner there.
What kind of densities were you pulling with the PIB binder and dioctyl sebacate plasticizer?
I've been trying to find DOS or DOA but it's hard to find in small quantities. |
1.58g/cc I have mentioned it
in my article. I hope you can put it into Google Translate and take a look. This is my hard work. I think this article is much greater than my shape
charge experiment.
[Edited on 25-11-2024 by PLSHY]
|
|
|
PLSHY
Hazard to Self
Posts: 96
Registered: 30-7-2023
Member Is Offline
|
|
| Quote: Originally posted by PLSHY | | Quote: Originally posted by greenlight | Beautiful symmetrical liner there.
What kind of densities were you pulling with the PIB binder and dioctyl sebacate plasticizer?
I've been trying to find DOS or DOA but it's hard to find in small quantities. |
1.58g/cc I have mentioned it
in my article. I hope you can put it into Google Translate and take a look. This is my hard work. I think this article is much greater than my shape
charge experiment.
[Edited on 25-11-2024 by PLSHY] |
The theoretical maximum density of this mixture is 1.60g/cc, and 1.58 is
quite good. But I think the high density is mainly due to the petn crystal. DOS will only improve the feel and plasticity I used acetone to dissolve
petn, then slowly cooled and crystallized it while stirring, forming round and large crystals. Another batch of plastic explosives I prepared used
acetone directly mixed with water. Although DOS was also added, the density was only 1.50 and the plasticity was not that good. These contents are all
written in my article
[Edited on 25-11-2024 by PLSHY]
|
|
|
greenlight
National Hazard
Posts: 758
Registered: 3-11-2014
Member Is Offline
Mood: Energetic
|
|
I will download it and translate and have a read of it .
1.58 g/cm³ is great work. I could only get around 1.47g/cm³ at best when using PETN based plastic for EFP's. I was using polybutene as the binder
and methyl ricinoleate as the plasticizer with a bit of motor oil to soften it up. I believe it was like 15% inerts in the final composition.
I dissolved the PETN in acetone and then slowly poured into ice water which was rapidly stirred which did result in much better product but not 100%
ideal. Slower pouring would have afforded better quality crystals and a higher end density probably. The density of the explosive is an extremely
important factor for any shaped charge.
Be good, otherwise be good at it
|
|
|
greenlight
National Hazard
Posts: 758
Registered: 3-11-2014
Member Is Offline
Mood: Energetic
|
|
Good to see your still around and coming up with interesting products and compositions as always LL
[Edited on 25-11-2024 by greenlight]
Be good, otherwise be good at it
|
|
|
Axt
National Hazard
Posts: 831
Registered: 28-1-2003
Member Is Offline
Mood: No Mood
|
|
Hello PLSHY, I've used google translate and recompressed it to fit as an attachment for you. I haven't had a chance to read it yet (frankly I can't
remember the last time I've read 160 pages of anything), but it looks like an incredible work. Can I ask what was the purpose of this work? Is it just
a hobby or part of your studies?
EDIT: Haha, I just read the conclusion " No matter how strong your technical skills are, all you can do is send your results to a
group
chat and pray for praise from others to fill your empty soul." It's an obsession and a hobby I got it.
Attachment: shape charge chinese trans-compressed.pdf (7MB)
This file has been downloaded 98 times
[Edited on 25-11-2024 by Axt]
|
|
|
PLSHY
Hazard to Self
Posts: 96
Registered: 30-7-2023
Member Is Offline
|
|
| Quote: Originally posted by Axt | Hello PLSHY, I've used google translate and recompressed it to fit as an attachment for you. I haven't had a chance to read it yet (frankly I can't
remember the last time I've read 160 pages of anything), but it looks like an incredible work. Can I ask what was the purpose of this work? Is it just
a hobby or part of your studies?
[Edited on 25-11-2024 by Axt] |
Shaped charge is my hobby. I am a Chinese student. Chinese students are under
great academic pressure. We only have one day off on weekends and school ends at 10:30 every night.
But we have 1 month and 2 months off in January and July respectively.
This article took me a year of free time for experiments and 104 hours for editing.
Attachment: IMG20241124190751.heic (3.2MB)
This file has been downloaded 78 times
|
|
|
gnitseretni
Hazard to Others
Posts: 283
Registered: 5-1-2007
Location: Colombia
Member Is Offline
Mood: No Mood
|
|
Is this the real Axt though?
|
|
|
MineMan
International Hazard
Posts: 1015
Registered: 29-3-2015
Member Is Offline
Mood: No Mood
|
|
Yes. Look at his posts. It’s pretty obvious.
|
|
|
| Pages:
1
..
66
67
68 |
![[*]](images/xpblue/default_icon.gif){kind=icon}
