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

Fuel cell bipolar plate forming limit measurement mold, test method and its application

A fuel cell, forming limit technology, used in the preparation of test samples, measuring devices, using stable tension/pressure to test the strength of materials, etc., can solve the problems of cumbersome observation, large errors, complex positioning, etc. Efficiency, increase accuracy, and improve the effect of positioning accuracy

Active Publication Date: 2022-05-24
SHANDONG UNIV
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The inventors found that currently there are many molds for the measurement of the forming limit at the micro-scale, most of which are complex in positioning, cumbersome to observe, and have relatively large errors. A new mold and testing method

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
  • Fuel cell bipolar plate forming limit measurement mold, test method and its application
  • Fuel cell bipolar plate forming limit measurement mold, test method and its application
  • Fuel cell bipolar plate forming limit measurement mold, test method and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0061] It should be noted that the following detailed description is exemplary and intended to provide further explanation of the application. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0062] It should be noted that the terminology used herein is for the purpose of describing specific embodiments only, and is not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural as well, furthermore, it is to be understood that when the terms "comprising" and / or "including" are used in this specification, it indicates that There are features, steps, operations, devices, components and / or combinations thereof.

[0063] The structure of the punch bulging die and its components for determining the forming of t...

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 relates to the technical field of micro-scale material forming limit, in particular to a fuel cell bipolar plate forming limit measurement mold, a testing method and an application thereof. The mold for measuring the forming limit of the fuel cell bipolar plate includes: an upper die, a pressing plate, a lower die and a punch, the pressing plate is arranged between the upper die and the lower die, the punch is fixed on the upper die, and the center of the pressing plate is set There are guide holes, the lower part of the pressure plate and the upper part of the lower mold are provided with corresponding positioning holes, and the positioning sleeve for positioning the sample is installed in the positioning holes; the center of the lower mold is provided with a through hole; the upper mold includes The upper and lower parts are detachably connected; a spring is installed between the lower part of the upper die and the pressing plate, and a spring is also installed between the pressing plate and the lower die; a test piece transmission system is arranged between the pressing plate and the lower die. The mold can directly test the forming limit on the right side of long sheets of different thicknesses, and can achieve high efficiency of measurement and accuracy of results, so as to improve the theoretical support of sheet forming in the manufacturing process.

Description

technical field [0001] The invention relates to the technical field of forming limit of micro-scale materials, in particular to a fuel cell bipolar plate forming limit measuring die, a testing method and application thereof. Background technique [0002] With the vigorous development of new energy vehicles, more and more attention has been paid to the research of fuel cells, of which titanium alloy bipolar plates are an important part of fuel cells. In order to improve the quality and efficiency of titanium alloy bipolar plate forming, it is necessary to accurately and efficiently measure the forming limit of titanium alloy sheet. The traditional right side forming limit measurement adopts the Marciniak method. Due to the existence of the size effect, the forming limit measurement method at the macro scale is not suitable for the measurement of the forming limit of the material at the micro scale. The inventor found that there are many molds for the measurement of the formi...

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
Patent Type & Authority Patents(China)
IPC IPC(8): G01N3/08G01N3/02G01N3/04G01N1/36
Inventor 崔青浩王继来李取浩万熠史振宇梁西昌
Owner SHANDONG UNIV
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