Combustion jet cutter used for steel structure member cutting

A technology for steel structural parts and cutting bullets, applied in welding equipment, metal processing equipment, manufacturing tools, etc., can solve problems such as large heat loss, low oxygen content, and low jet velocity, and achieve fast reaction speed and high energy density , The effect of cutting and blowing force is large

Active Publication Date: 2013-07-03
PEOPLES LIBERATION ARMY ORDNANCE ENG COLLEGE
View PDF8 Cites 28 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method can burn through the cutting metal without power supply, gas source and equipment, the jet stream produced by the combustion of the cutting pen (rod) has low temperature, low jet velocity, low energy densit

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Combustion jet cutter used for steel structure member cutting

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] Combustion type cutting ammunition with an outer diameter of 23mm, full length of the ammunition is 120mm, the primer is the base-6B, and the cartridge case is a 1.5mm thick paper tube; the inner bottom of the ammunition is pressed with a 3mm thick igniter, and the cutting agent is a hollow structure made of solid powder mixed and pressed , the hollow hole is about 6mm in diameter, the front end of the bullet is made of graphite material, the nozzle with the inner cone hole and straight hole structure, the nozzle thickness is 12mm, the diameter of the straight hole is 4mm, the outer diameter of the nozzle is the same as the inner diameter of the cartridge case, and water glass adhesive is used Cartridge inside diameter bonding. The composition of the cutting agent is CuO (-200 mesh) 8% ~ 12%, Fe 2 o 3 (-200 mesh) 45%~50%, Al (-250 mesh) 18%~22%, KNO 3 (-100 mesh) 10%~15%, CaCO 3 (-100 mesh) 2%, Al 2 o 3 (-150 mesh) 1.5%, Cr 2 o 3 (-200 mesh) 1.5%, Ni (-150 mesh) ...

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 discloses a combustion jet cutter used for steel structure member cutting. The combustion jet cutter consists of a jet cutter bottom, primer, a shell case, ignition agent, cutting agent and a nozzle, wherein thermite is based on plain thermit in the cutting agent; the plain thermit roughly accounts for 65-85wt% of the cutting agent; gas-forming agent is based on potassium nitrate which roughly accounts for 5-25wt% of the cutting agent; and slagging constituent and alloying agent roughly account for 7-20wt% of the cutting agent. During cutting, the combustion jet cutter is filled into a cutting gun, the cutting gun is held with a hand to aim at a cutting part, the jet cutter primer is triggered, inner ignition agent the jet cutter is ignited by the primer, the cutting agent is ignited by the ignition agent to generate high-temperature metallurgical melt and high-pressure gas, and a product is injected after being subjected to energy-gathering compression by the nozzle to locally melt the steel structure member so as to realize cutting. The jet cutter is mainly used for the quick thermal cutting and the underwater cutting of various steel structure members.

Description

technical field [0001] The invention relates to the field of emergency cutting, in particular to an incendiary cutting bomb which uses a solid cutting agent to burn and cut steel structural parts. Background technique [0002] Emergency cutting is an important technology for emergency installation, repair and demolition of field engineering facilities and equipment, and it is also an indispensable technology for military battlefield repairs. Statistics show that equipment parts are stuck, broken, perforated and other damages in the field or on the battlefield, which affect the performance of the equipment. Most of them need to be quickly solved by emergency cutting. In earthquake, snow disaster, landslide, shipwreck and other disaster rescues and daily fire rescue, there is an urgent need for a portable and safe emergency cutting method. [0003] At present, the commonly used thermal cutting methods in field repairs are plasma cutting or gas cutting. Plasma cutting is a th...

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): B23K28/00
Inventor 辛文彤张龙王瑞林孙宏涛李永建胡仁喜孙立明崔秀梅王森吴永胜
Owner PEOPLES LIBERATION ARMY ORDNANCE ENG COLLEGE
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