Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Method for processing static fusion welding force data of electrical contact material based on Weibull distribution

A technology of electrical contact materials and Weibull distribution, which is applied in the direction of applying stable tension/pressure to test the strength of materials, etc., can solve the problems of data singleness and shorten the experiment time, and achieve high fitting accuracy, shorten the test time, The effect of saving test cost

Active Publication Date: 2015-04-01
ZHEJIANG FUDA ALLOY MATERIALS TECH CO LTD
View PDF6 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the shortcomings and deficiencies of the prior art, and to provide a static welding force data processing method for electric contact materials based on Weibull distribution, which can be processed simultaneously according to the effective data and failure data obtained by the test , which overcomes the defect of singleness of normal distribution processing data, greatly shortens the experimental time and saves the experimental cost under the premise of ensuring that the experiment can obtain enough effective data

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
  • Method for processing static fusion welding force data of electrical contact material based on Weibull distribution
  • Method for processing static fusion welding force data of electrical contact material based on Weibull distribution
  • Method for processing static fusion welding force data of electrical contact material based on Weibull distribution

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Embodiment one: figure 2 For AgNi electrical contact material Weibull complete data statistics method, get figure 2 Proceed as follows:

[0028] Step 1: The number of static welding force experiments for AgNi electrical contact materials is n=30, and the obtained data are shown in the following table:

[0029] Number of experiments Static welding force (g) 1 584 2 1111 3 865 4 521 5 518 6 1005 7 846 8 253 9 435 10 1077 11 374 12 478 13 790 14 809 15 1133 16 540 17 191 18 453 19 170 20 1122 21 676 22 1129 23 436 24 278 25 482 26 451 27 431 28 365 29 787 30 577

[0030] Step 2: There is no failure data in the experimental data, m=100%;

[0031] Step 3: There is no failure data in the experimental data, adopt the Weibull complete data statistical method, and the independent variable X takes the value of 1 / ...

Embodiment 2

[0035] Embodiment two: image 3 For AgCdO electrical contact material Weibull complete data statistical method, get image 3 Proceed as follows:

[0036] Step 1: The number of static welding force experiments of AgCdO electrical contact material n=40, the obtained data are shown in the following table:

[0037] Number of experiments Static welding force (g) 1 149 2 333 3 288 4 569 5 457 6 81 7 992 8 72 9 842 10 385 11 36 12 80 13 395 14 0 15 763 16 0 17 348 18 369 19 280 20 201 21 589 22 59 23 0 24 0 25 612 26 160 27 672 28 390 29 632 30 417 31 620 32 621 33 762 34 370 35 299 36 357 37 191 38 646 39 0 40 122

[0038] Step 2: There are failure data in the experimental data, m=87.5%;

[0039]Step 3: There are failure data in the experimental data, using the Weibull...

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 method for processing static fusion welding force data of an electrical contact material based on Weibull distribution. According to an electrical contact static fusion welding force testing device, movable and static contacts are pressurized to be closed, specified current is loaded, and the movable and static contacts are separated to measure the static fusion welding force value of the electrical contact material by virtue of a certain tension. The method disclosed by the invention comprises the following five steps: step 1. acquiring the static fusion welding force data of the electrical contact material; step 2. determining the data characteristics; step 3. determining a data statistics mode, namely adopting a Weibull global statistics mode if failure data is absent, otherwise, adopting a Weibull incomplete statistics mode if the failure data exists; step 4. performing data fitting; and step 5. determining the confidence coefficient to obtain the optimal value, thereby obtaining the optimal value of the static fusion welding force data of the electrical contact material according to the fitting result. According to the method disclosed by the invention, the Weibull probability statistics is taken as the basis, the test time is greatly shortened under the condition that valid data can be acquired by the experiment, and the test cost is saved. Meanwhile, the static fusion welding force data of the electrical contact material can be summarized, and a technical support is provided for development of the low voltage electrical apparatus industry.

Description

technical field [0001] The invention belongs to the field of material performance testing, and specifically refers to a method for processing static welding force data of electric contact materials based on Weibull distribution. Background technique [0002] The electrical contact material is an important factor affecting the reliability of the switch electrical contact system. In the selection and development of electrical contact materials, the influence of the thermal, electrical, and mechanical properties of the material itself on the contact resistance, hot-melt welding, erosion, and electrical life during the working process must be considered comprehensively, and according to various switches According to the different requirements of electrical appliances for electrical contact materials, materials should be selected or developed reasonably. The electrical contact material used as a switch, due to the inrush current generated when the power is turned on, and the sho...

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): G01N3/08
Inventor 王珩李素华刘立强翁桅柏小平林万焕
Owner ZHEJIANG FUDA ALLOY MATERIALS TECH CO LTD
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
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