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Arc extinguishing slurry and its preparation method and application

A technology of arc extinguishing and slurry, applied in emergency protection devices, electrical components, circuits, etc., can solve the problems of low temperature curing, poor arc extinguishing performance, high viscosity, etc., and achieve low production cost, easy operation, and easy molding Effect

Active Publication Date: 2020-05-08
NANJING SART SCI & TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Purpose of the invention: In order to solve the problems of poor arc extinguishing performance, high viscosity and low temperature curing of the arc extinguishing slurry in the prior art, the present invention provides an arc extinguishing slurry; another purpose of the present invention is to provide the arc extinguishing slurry Preparation method and application of slurry

Method used

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  • Arc extinguishing slurry and its preparation method and application
  • Arc extinguishing slurry and its preparation method and application
  • Arc extinguishing slurry and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] According to the calculation, weigh 76g of quartz sand, 24g of deionized water, 2.28 g of monomer N,N-dimethylacrylamide (accounting for 3% of the mass of quartz sand), M 单体 :M 交联剂 =10:1 (mass ratio), the crosslinking agent is N, N-methylenebisacrylamide, the addition amount of the dispersant polyethyleneimine is 0.114g (accounting for 0.15% of the mass of the quartz sand) and 152g of zirconia balls , and added to the ball mill tank in sequence according to the weighing order, set the speed of the ball mill to 220r / min, and after 4 hours of ball milling, a low-temperature solidified slurry with a slurry viscosity of 0.02Pa.s was obtained.

[0033] Assemble a 95 alumina ceramic tube with a size of 15.4×4.56×4.56, a copper cap, and a fuse on the assembly table to form a semi-finished fuse with one end copper cap welded and the other end copper cap unwelded, and then the prepared arc extinguishing The slurry is injected and filled into the alumina ceramic tube, and then t...

Embodiment 2

[0036] According to the calculation, weigh 80g of quartz sand, 20g of deionized water, 1.6 (accounting for 2% of the mass of quartz sand) g of N,N-dimethylacrylamide, M 单体 :M 交联剂 =6:1 (mass ratio), the crosslinking agent is N,N-methylenebisacrylamide, the addition amount of the dispersant polyethyleneimine is 0.08g (accounting for 0.1% of the mass of the quartz sand) and 160g of zirconia balls , according to the order of weighing into the ball mill tank, set the speed of the ball mill to 220r / min, after 4 hours of ball milling, a low-temperature solidified slurry with a slurry viscosity of 0.5Pa.s was obtained.

[0037] Assemble a 95 alumina ceramic tube with a size of 15.4×4.56×4.56, a copper cap, and a fuse on the assembly table to form a semi-finished fuse with one end copper cap welded and the other end copper cap unwelded, and then the prepared arc extinguishing The slurry is injected and filled into the alumina ceramic tube, and then the other end of the ceramic tube is...

Embodiment 3

[0040] According to the calculation, weigh 85g of quartz sand, 15g of deionized water, 4.25g of monomer N,N-dimethylacrylamide (accounting for 5% of the mass of quartz sand), M 单体 :M 交联剂=12:1 (mass ratio), the crosslinking agent is N, N-methylenebisacrylamide, the amount of dispersant added is 0.425g (accounting for 0.5% of the mass of quartz sand) and 170g of zirconia balls, weighed Sequentially add to the ball mill tank, set the speed of the ball mill to 220r / min, after 4 hours of ball milling, the slurry viscosity is 3Pa.s low-temperature solidified slurry. The solid content of the slurry is relatively high, resulting in a high viscosity of the slurry, which makes it difficult for the slurry to be poured into the ceramic tube.

[0041] Assemble a 95 alumina ceramic tube with a size of 15.4×4.56×4.56, a copper cap, and a fuse on the assembly table to form a semi-finished fuse with one end copper cap welded and the other end copper cap unwelded, and then the prepared arc ext...

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Abstract

The invention discloses an arc extinguishing slurry, and a preparation method and application thereof. The raw material of the arc extinguishing slurry is composed of: quartz sand, water, N,N-dimethylacrylamide, a dispersing agent and a crosslinking agent, wherein the mass of the quartz sand accounts for 76% to 85% of the total mass of the quartz sand and water, the mass of the N,N-dimethyl acrylamide accounts for 2% to 5% of the mass of the quartz sand, the mass ratio of the N,N-dimethyl acrylamide to the crosslinking agent is 5-12:1, the mass of the dispersing agent accounts for 0.1% to 0.8% of the mass of the quartz sand, and the formulation amount of the raw material is mixed and ball milled at the time of preparation. The arc extinguishing slurry provided by the invention has the advantages such as good arc extinguishing performance, low slurry viscosity, and rapid curing in a low temperature environment, and is simple in preparation process, low in cost, and easy to operate.

Description

technical field [0001] The invention relates to an arc-extinguishing material, in particular to a low-temperature curing, low-viscosity arc-extinguishing slurry and a preparation method and application thereof. Background technique [0002] The causes of arc generation are nothing more than collision ionization under the action of electric field force and thermal ionization under high temperature state. Collision ionization: Charged particles gain kinetic energy under the action of electric field force to accelerate, and collide with gas atoms or molecules (neutral particles) with kinetic energy greater than the ion energy of neutral particles, causing neutral particles to decompose into charged free electrons And positive ions, this phenomenon is collision ionization or electric field ionization. Thermal dissociation: At high temperature, the dissociation of neutral particles due to high-speed thermal motion colliding with each other is called thermal dissociation. The ess...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H85/38H01H85/18C04B26/04C04B111/28C04B111/92
CPCC04B26/04C04B2111/00844C04B2111/28C04B2111/92H01H85/18H01H85/38H01H2085/388C04B14/06C04B24/2652C04B2103/408
Inventor 南式荣杨漫雪郭林
Owner NANJING SART SCI & TECH DEV
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