Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for preparing primer mixture-free powder charge with high mechanical sensitivity

A technology of mechanical sensitivity and charge, which is applied in the field of nail fixing, can solve the problems of poor firing performance and low mechanical firing sensitivity, and achieve the effect of improving the process and overcoming the manufacturability

Active Publication Date: 2012-09-19
无锡特生能科技有限公司
View PDF3 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Both the first two patented products have the problems of low mechanical percussion sensitivity and poor percussion performance, which resulted in the products not being able to enter the market smoothly. The third patent uses sensitive substances such as oxidizing agents, metal mineral particles, and even priming powder to improve sensitivity, but This in turn brings with it varying degrees of manufacturability and safety issues

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 1

[0021] Ingredients according to the following formula: in absolute dry weight (kg):

[0022] Charge base components:

[0023] NC (nitration degree 213 g / mL, fineness 80 mL) 69

[0024] DPA (stabilizer) 1

[0025] h 2 O 30

[0026] Adhesive components:

[0027] HPMC (viscosity 200000cps, water content less than or equal to 5%) 1

[0028] h 2 O 70

[0029] A preparation method of a non-triggering charge with high mechanical sensitivity, the steps are as follows:

[0030] (1) Solution configuration: the adhesive is configured as an aqueous solution with a mass concentration of 0.5% on an absolute dry basis; the stabilizer diphenylamine is formulated with ethanol with a volume concentration of 95% to form a diphenylamine ethanol solution with a mass concentration of 10%;

[0031] (2) Granulation: Take cellulose nitrate and put it into the kneader; according to the dry weight of cellulose nitrate, gradually add diphenylamine ethanol solution with a dry weight of 0.8% solute...

Embodiment 2

[0042] Example 2 A method for preparing a non-triggering charge with high mechanical sensitivity, the steps are as follows:

[0043] (1) Solution configuration: the adhesive is configured as an aqueous solution with a mass concentration of 2% on an absolute dry basis; the stabilizer diphenylamine is made into a diphenylamine ethanol solution with a mass concentration of 15% with ethanol with a volume concentration of 95%;

[0044] (2) Granulation: Take cellulose nitrate and put it into the kneader; according to the absolute dry weight of cellulose nitrate, gradually add diphenylamine ethanol solution with a dry weight of 1% solute and 2% adhesive agent aqueous solution; mix and granulate at 20~35°C for 30 minutes;

[0045] (3) Drying and sieving: take the granulated mixture prepared in step (2) and dry at 70-90°C until the moisture content is 15%; the dried material is screened to select 10-60 mesh materials for later use ;

[0046] (4) Compression molding: Take the material...

Embodiment 3

[0051] Example 3 A method for preparing a non-triggering charge with high mechanical sensitivity, the steps are as follows:

[0052](1) Solution configuration: the adhesive is configured as an aqueous solution with a mass concentration of 3% on an absolute dry basis; the stabilizer diphenylamine is made into a diphenylamine ethanol solution with a mass concentration of 20% with ethanol with a volume concentration of 95%;

[0053] (2) Granulation: Take cellulose nitrate and put it into the kneader; according to the dry weight of cellulose nitrate, gradually add diphenylamine ethanol solution with a dry weight of 2% solute and 3% adhesive agent aqueous solution; mix and granulate at 20~35°C for 40 minutes;

[0054] (3) Drying and sieving: take the granulated mixture prepared in step (2) and dry at 70-90°C until the moisture content is 20%; the dried material is screened to select 10-60 mesh materials for later use ;

[0055] (4) Compression molding: Take the material prepared ...

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

PropertyMeasurementUnit
Viscosityaaaaaaaaaa
Densityaaaaaaaaaa
Thicknessaaaaaaaaaa
Login to View More

Abstract

The invention relates to a method for preparing a primer mixture-free powder charge with high mechanical sensitivity, in particular to a primer mixture-free and shell-less nail shooting pill for a nail shooting apparatus, and belongs to the technical field of fixation of shooting nails. Cellulose nitrate with low fineness, high water content and high nitration degree is stabilized and then used as a base material of the powder charge, cellulose ether with high or ultrahigh viscosity is prepared into an aqueous solution, and the aims of bonding and granulating are fulfilled. A technical path of adding sensitive substances is not adopted in the method, and the technology is improved in a mode of improving the formula of the powder charge, the fineness of powder and the density of tablets. Under the action of certain mechanical excitation pulse, satisfactory mechanical sensitivity and percussion performance can be obtained, so that the contradiction of the conventional product among processing property and safety in production and reliability in use is overcome.

Description

technical field [0001] The invention relates to a method for preparing a high-mechanical-sensitivity non-triggering powder charge, in particular to a nail-shooting cartridge without a firing drug and no casing for a nail shooter, which belongs to the technical field of nail fixing. Background technique [0002] The nail bullet is the energy part for setting the fastening device, such as a nail shooter. The nailer is a device that fixes nails such as nails and hooks on substrates such as walls or other hard surfaces. At present, some of the nail bullets used by the nail shooter adopt the propellant with a built-in firing charge. When the firing pin of the nail shooter hits the primer, a series of reactions occur, causing it to generate gas, which expands and breaks through the paper pad or the mouth of the cartridge case, pushes the piston or directly pushes the nail, and drives the nail into the matrix, thereby playing a tight role. solid purpose. [0003] Others adopt 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): C06B25/20
Inventor 姚鲁
Owner 无锡特生能科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com