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Design of electrofusion joints and evaluation of fusion strength using fusion simulation technology.: An article from: Polymer Engineering and Science
	Authors: Hiroyuki Nishimura, Fumio Inoue, Akio Nakashiba, Testuo Ishikawa Publisher: Society of Plastics Engineers, Inc. Buy New: $5.95 as of 2/10/2012 21:15 MST details In Stock Seller: Amazon.com Format: HTML Language: English (Published) Media: Digital Pages: 9 ASIN: B00092Y3HK Publication Date: October 1, 1994 Availability: Available for download now



Editorial Reviews: Product Description This digital document is an article from Polymer Engineering and Science, published by Society of Plastics Engineers, Inc. on October 1, 1994. The length of the article is 2700 words. The page length shown above is based on a typical 300-word page. The article is delivered in HTML format and is available in your Amazon.com Digital Locker immediately after purchase. You can view it with any web browser. From the author: Fusion simulation is one of the key techniques in designing and producing electrofusion (EF) joints for gas distribution and in evaluating fusion joint integrity. This paper describes the result of a numerical simulation of a thermal fusion process, using the finite element method. A nonlinear heat transfer computer program was used to obtain the temperature profile of a large electrofusion joint at fusion. The effects of applied voltage, heating time, wire pitch, and ambient temperature were examined for designing a 150-mm EF joint. A method to shorten the cooling time was also investigated. The fusion condition range suitable for a 150-mm EF joint was found to be slightly narrower than that suitable for a 50-mm EF joint. Examination of the effect of wire pitch revealed that if the pitch is extremely large, thermal degradation starts in the resin close to the wire before the fusion-interface strength reaches the maximum value. We have developed a program to simulate the process of closing the gap between the pipe and the joint due to resin expansion and melting after the power is supplied. Citation Details Title: Design of electrofusion joints and evaluation of fusion strength using fusion simulation technology. Author: Hiroyuki Nishimura Publication: Polymer Engineering and Science (Refereed) Date: October 1, 1994 Publisher: Society of Plastics Engineers, Inc. Volume: v34 Issue: n20 Page: p1529(6) Distributed by Thomson Gale

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