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

Gas tightness and sealing intensity test method for accumulator shell

A technology of strength detection and air tightness, which is applied in the direction of using liquid/vacuum to measure liquid tightness, applying stable tension/pressure to test material strength, and measuring the rate of increase and deceleration of fluid, etc., which can solve the problem of air leakage or Weak parts cannot be detected, electrolyte leakage, sealing strength cannot be detected, etc.

Inactive Publication Date: 2013-02-13
SHUANGDENG GRP
View PDF5 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The strength of the entire seal cannot be detected by using the above method, and there are often partial air leaks or weak parts that cannot be detected, and electrolyte leakage of the battery is caused by air leaks or weak parts

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

[0013] 1. Select 0.5% of the processed battery shells from the same batch as a sampling sample, fill it with water and seal it, and put it into the observation box;

[0014] 2. Connect the 0.5MPa compressed air source and the valve port of the shell with a pipeline, and connect the pressure regulating valve, pressure gauge and pressure loss stop valve in sequence from the air source end of the pipeline;

[0015] 3. The manual pressure regulating valve adjusts the speed at 8 KPa / min to make the air pressure from small to large, and inflate the shell;

[0016] 4. Stop the air pressure adjustment when water leakage is found at the sealing part of the shell, and record the air pressure value at the same time to represent the airtightness index of the shell;

[0017] 5. If there is no water leakage in the shell, but it bursts suddenly, the pressure loss stop valve will be closed immediately, and the air pressure value at this time will be recorded, which is the seal strength index ...

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 gas tightness and sealing intensity test method for an accumulator shell. The gas tightness and sealing intensity test method comprises the steps of filling water into the accumulator shell, sealing the shell, putting the shell into an observation box, adjusting air pressure to increasingly aerate the shell, taking the air pressure during the water leakage of the shell as the air tightness index of the shell, turning off a safety valve when the shell suddenly bursts, and recording the air pressure value as the sealing intensity index of the shell. According to the method, the sealing quality of the accumulator shell can be detected, the operation is simple and convenient, the investment is low, moreover, the sealing intensity of the accumulator shell and the pressure bearing value of the shell can be displayed in a digitalized manner.

Description

technical field [0001] The invention relates to a method for detecting the airtightness and sealing strength of a storage battery casing, which is used for detecting the casing in battery production. Background technique [0002] The airtightness and sealing strength of the shell of the battery, especially the valve-regulated sealed lead-acid battery, directly affect the performance of the battery. The casing is formed by sealing the cover head and the cylinder body by heat sealing or adhesive. The airtightness and sealing strength of the battery case are currently tested by manually peeling off the sealing surface to see if it is secure, or taking a small section from the sealing and using a stretching machine for testing. The strength of the entire seal cannot be detected by using the above method, and there are often partial air leaks or weak parts that cannot be detected, and electrolyte leakage of the battery starts from air leaks or weak parts. Contents of the inven...

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): G01M3/32G01N3/12
Inventor 于士洋
Owner SHUANGDENG GRP
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