Results 261 to 270 of about 161,906 (293)

THE USE OF THERMOSETTING MATRICES FOR THE MANUFACTURE OF POLYMER COMPOSITE MATERIALS BY THE NON-AUTOCLAVE MOLDING METHODS

, 2021
In work, the rheological heat-resistant and elastic-strength characteristics of thermosetting systems developed at FSUE «VIAM» (epoxy matrices of grades VSE-20, VSE-30, VSE-33, bismaleimide grade VST-57 and cyan ester matrices of grades VST-1210 and VST ...
A. Tkachuk, K. I. Donetsky, I. Terekhov, R. Karavaev   +3 more
semanticscholar   +1 more source

Autoclave foaming and steam-chest molding of polypropylene/polybutene-1 blend bead foams and their crystallization and mechanical properties

Journal of cellular plastics (Print), 2023
Expanded polypropylene (EPP) foams have showed wide applications in our daily life, such as automotive and packaging. Usually, autoclave foaming combined with steam-chest molding is the main artwork to prepare the high-precision EPP foam products ...
X. Lan, Pengke Huang, Yunkai Chong, Fei Wu, Yaozhuo Su, Haibin Luo, Partrick C. Lee, Wenge Zheng   +7 more
semanticscholar   +1 more source

Characterization of effective permeability of prepreg fibers under autoclave molding process conditions using process model simulations

, 2020
During autoclave molding process of prepreg composites, resin flow occurs through the fibers in the transverse direction of the layup due to applied external pressure. The extent of resin flow depends largely on the permeability of the reinforcement used
Prosenjit Maji, Arpita Jain, N. Dutta, A. O. Siddiqui, Debdarsan Niyogi, S. Neogi   +5 more
semanticscholar   +1 more source

Monitoring cure of autoclave‐molded parts by dielectric analysis

Polymer Composites, 1982
AbstractA study was undertaken to determine the feasibility of using dielectric analysis as a means of monitoring and controlling cure of large closures during autoclave molding. In dielectric analysis, the dissipation factor (DF) and capacitance (C) of the sample are continuously monitored as a function of time, temperature, and frequency. Dissipation
J. Chottiner, Z. N. Sanjana, M. R. Kodani, K. W. Lengel, G. B. Rosenblatt   +4 more
openaire   +1 more source

A manta-ray-inspired bionic curing mold for autoclave process of composite manufacturing

Journal of Reinforced Plastics and Composites, 2022
The temperature distribution of the mold is directly linked to the manufacturing quality of the composite component. In this paper, a bionic mold based on the analysis of a manta ray in swimming is developed to improve the thermal performance of the mold during the autoclave curing process. The bionic mold has fewer frames and better air permeability,
Hao Li, Yi Lin, Lingyun Wang, Qiang Xu, Yinglin Ke   +4 more
openaire   +1 more source

Influence of Large Framed Mold Placement in Autoclave on Heating Performance

Applied Composite Materials, 2020
For large composite parts manufactured by autoclave curing process, temperature uniformity of the mold is essential to ensure final part quality. This paper aims to investigate the influence of mold placement variation in autoclave on heating performance of a large framed mold and find the optimal mold placement parameters for improving the temperature
Dilmurat Dolkun, Han Wang, Haijin Wang, Yinglin Ke   +3 more
openaire   +1 more source

Simulation of mold temperature distribution in a running process autoclave

Iranian Polymer Journal, 2015
Composite materials have become increasingly more popular in aviation because of their good characteristics. One of the ways to fabricate composite products is through autoclave process. Due to the fact that in the molding process of the thermosets the performance and quality of composite products depend on mold temperature distributions, it would be ...
Fei Chen, Lihua Zhan, Yongqian Xu
openaire   +1 more source

Refined simulation of temperature distribution in molds during autoclave process

Iranian Polymer Journal, 2016
Since the production of advanced composites, they have gained popularity in many industrial applications because of their unique performances. The advantages of these materials are very important, especially in the area of aviation. Among all the molding methods adopted in their production, the autoclave stands out as distinct method.
Fei Chen, Lihua Zhan, Shujian Li
openaire   +1 more source

Design optimization of molds for autoclave process of composite manufacturing

Journal of Reinforced Plastics and Composites, 2017
Autoclave process is widely used in manufacturing processes for thermosetting matrix composite materials. During the process, the non-uniformity of temperature distribution in autoclave may result in non-synchronous curing of composite, which in turn reduces the mechanical properties of composite parts.
Qing Wang, Lingyun Wang, Weidong Zhu, Qiang Xu, Yinglin Ke   +4 more
openaire   +1 more source

An efficient thermal cure profile design method for autoclave curing of large size mold

The International Journal of Advanced Manufacturing Technology, 2021
The mold temperature uniformity has a crucial effect on the quality of composite part manufactured by the autoclave curing process, especially for large size mold. It has been a challenging issue to design appropriate thermal cure profile not only improving the temperature uniformity but also reducing the manufacturing cost.
Dilmurat Dolkun, Han Wang, Haijin Wang, Yinglin Ke   +3 more
openaire   +1 more source