Experiment method for measuring asynchronous curing degree distribution of transparent resin material

A technology of transparent resin and experimental method, which is applied in the direction of material analysis, measuring device, and material analysis through optical means, which can solve the problems of inability to monitor uneven curing and simultaneous curing of layers, so as to reduce the interference of curing, The result is precise effect

Active Publication Date: 2015-10-21
AVIC BEIJING INST OF AERONAUTICAL MATERIALS
View PDF4 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the real curing process, due to the existence of the temperature gradient in the board, the simultaneous curing of each layer cannot be realized in practice, and the residual stress and the deformation state of the board are largely determined by the specific curing process.
At present, the monitoring of the curing process and th...

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
  • Experiment method for measuring asynchronous curing degree distribution of transparent resin material
  • Experiment method for measuring asynchronous curing degree distribution of transparent resin material
  • Experiment method for measuring asynchronous curing degree distribution of transparent resin material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] The specific structure, working principle and working process of the present invention will be further described below in conjunction with the accompanying drawings, but the protection scope of the present invention should not be limited by this.

[0020] figure 1 It is a schematic diagram of the structure and principle of the device for measuring the curing degree distribution of transparent resin materials. The device includes a laser, a beam expander, a convex lens 1, a material to be measured, a grating 1, a grating 2, a convex lens 2, a diaphragm, a CCD camera, and a computer; the light emitted by the laser passes through the beam expander to form a coherent light source and then The parallel light formed by the convex lens 1 enters the heating furnace, providing parallel incident coherent light source for the material to be tested; the material to be tested is placed in the heating furnace, and the vacuum pump is connected to the heating furnace to provide a vacuu...

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 belongs to the technical field of experimental mechanics and non-contact optical measurement, and relates to an experiment method for measuring asynchronous curing degree distribution of a transparent resin material. By the adoption of the coherent gradient sensing method, curing degree distribution of the transparent resin material is measured in real time. According to the method, firstly, the transparent material is contained in a transparent container before curing; then, the container is placed in a heating furnace, wherein the front and the back of the heating furnace are provided with windows; then, the heating furnace is placed in a coherent gradient sensing measurement optical path, interference fringes caused by change of the curing degree of the material are shot in real time through a CCD camera, and accordingly relevant information of curing degree distribution of the material is obtained. The adopted coherent gradient sensing technology is optical non-contact measurement. Compared with a traditional DSC method, the measured material does not need to be contacted, interference on curing of the measured material is reduced, and asynchronous curing can be monitored globally.

Description

technical field [0001] The invention belongs to the technical field of experimental mechanics and non-contact optical measurement, and relates to an experimental method for measuring the asynchronous curing degree distribution of transparent resin materials. Background technique [0002] The classical analysis methods for curing residual stress and deformation of composite laminates are implicitly based on a basic assumption: the curing thermal history and curing reaction of each ply in the board are completely synchronized. Under this assumption, the laminates with symmetrical ply design do not warp after curing. However, in the real curing process, due to the existence of the temperature gradient in the board, the simultaneous curing of each layer cannot be realized, and the residual stress and the deformation state of the board are largely determined by the specific curing process. At present, the monitoring of the curing process and the distribution of the curing degree...

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): G01N21/84
Inventor 马丽婷郝文峰陈新文
Owner AVIC BEIJING INST OF AERONAUTICAL MATERIALS
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
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap