Low explosive for metal welding and preparation method

A low-explosive-velocity explosive, metal welding technology, applied in explosives, non-explosive/non-thermal components, offensive equipment, etc., can solve problems such as unfavorable quality preservation and non-agglomeration, difficult to control the use technology, and prone to safety accidents. To achieve the effect of stable, reliable and adjustable explosion speed, low cost and low material cost

Inactive Publication Date: 2015-12-09
湖北东神天神实业有限公司
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Explosives currently used for metal welding are mainly expanded ammonium nitrate explosives, which have the following disadvantages: (1) expanded explosives are easy to agglomerate; (2) storage stability is not good; (3) detonation velocity is unstable
[0005] The two disclosed invention patents use a larg

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] The present invention is a low detonation velocity explosive for metal welding, which consists of the following raw materials by weight percentage: urea 27-30%, nitric acid 27-30%, ammonium nitrate 18-20%, octadecyl primary amine 0.10-0.15%, precipitated white Carbon black 21.90-25.85%.

[0018] The preparation method is:

[0019] First, add 27-30kg of urea to 30-35kg of water in batches, heat to 30-40°C, stir, after dissolving, add 27-30kg of nitric acid at a uniform speed within 10 minutes, and stir for 30 minutes to generate urea nitrate;

[0020] In the second step, add 18-20 kg of ammonium nitrate and 0.10-0.15 kg of octadecyl primary amine to urea nitrate, stir while heating, and the heating temperature is 100-110 ° C. After 30 minutes, vacuum-dry and pulverize;

[0021] In the third step, 21.90-25.85Kg of precipitated white carbon black is added, and the low-detonation velocity explosive for metal welding is obtained by rolling and mixing evenly.

[0022] Note:...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a low explosive for metal welding. The low explosive comprises, in percent by weight, 27-30% of urea, 27-30% of nitric acid, 18-20% of ammonium nitrate, 0.10-0.15% of octadecyl primary amine, 21.90-25.85% of deposit white carbon black, and water. The low explosive is prepared according to the following preparation method: firstly adding 27-30 Kg of urea into 30-35 Kg of water according to the batches, heating to 30-40 DEG C, stirring, after dissolving, adding 27-30 Kg of nitric acid at a uniform speed within 10 min, and stirring for 30 min, so as to generate urea nitrate; adding 18-20 Kg of ammonium nitrate and 0.10-0.15 Kg of octadecyl primary amine into urea nitrate, heating with stirring, controlling the heating temperature for 100-110 DEG C, after 30 min, performing vacuum drying and crushing; and adding 21.90-25.85 Kg of deposit white carbon black, and performing grinding and uniform mixing, so as to obtain the low explosive for metal welding. The material cost is low, production is simple, the detonation sensitivity is good, the detonation velocity is stable and adjustable, the explosive detonation velocity is 2000-2400 m/s, the storage life is within 1 year, the explosive does not cake, production is safe and simple, the employed materials all do not contain toxic and harmful compositions, and the production and usage processes are harmless to contact personnel and environment.

Description

technical field [0001] The invention relates to a low-detonation-velocity explosive in the chemical industry, in particular to a low-detonation-velocity explosive for metal welding and a preparation method thereof. Background technique [0002] At present, the explosives used for metal welding are mainly expanded ammonium nitrate explosives, which have the following disadvantages: (1) The expanded explosives are easy to agglomerate; (2) The storage stability is not good; (3) The detonation velocity is unstable. In particular, the instability of the detonation velocity has caused a large number of waste products and unqualified metal explosion welding. [0003] CN200910144068-low detonation velocity explosion welding explosive; [0004] CN201410846932-A low detonation velocity explosive for explosive welding and its preparation method, [0005] The two disclosed invention patents use a large amount of ammonium nitrate or ammonium nitrate. Although the use of the two reflect...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C06B31/28C06B23/00
Inventor 胡高林冯垚王燕峰张政李涛刘新微昝小忠彭君黄俊孟双锁王波张坤刘双忠
Owner 湖北东神天神实业有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap