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Title:
SMALL-DIAMETER BAMBOO-WOUND COMPOSITE TUBE AND MANUFACTURING METHOD THEREOF
Document Type and Number:
WIPO Patent Application WO/2017/177709
Kind Code:
A1
Abstract:
A small-diameter bamboo-wound composite tube and a preparation method thereof, the bamboo-wound composite tube comprising a lining layer (1), a middle reinforcing layer (2) and an outer protection layer (3) from inside to outside, wherein the lining layer (1) is made of fibre mats or non-woven fabrics with an anticorrosive resin adhered; the middle reinforcing layer (2) is formed by spirally winding multiple layers of single bamboo strip pieces with a resin adhered and having a certain dimension outside the lining layer (1) and curing, wherein the total thickness thereof accounts for more than 75 percent of the whole wall thickness of the tube; and the outer protection layer (3) is applied and cured on the outer surface of the middle reinforcing layer (2), achieving the effects of water prevention, corrosion prevention and radiation prevention. Even if the composite tube is of a small diameter specification of lower than 200 mm, the characteristic that the whole structure of the bamboo-wound composite tube has no stress distribution defect can still be well retained, and meanwhile, comprehensive performance from aspects such as pressure resistance, ring rigidity, a fluid delivery energy consumption and long-term use quality stability can be markedly improved.

Inventors:
YE LING (CN)
Application Number:
PCT/CN2016/109942
Publication Date:
October 19, 2017
Filing Date:
December 14, 2016
Export Citation:
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Assignee:
ZHEJIANG XINZHOU BAMBOO-BASED COMPOSITES TECH CO LTD (CN)
YE LING (CN)
International Classes:
F16L9/16
Foreign References:
CN105715882A2016-06-29
CN205578941U2016-09-14
CN202327397U2012-07-11
CN201651576U2010-11-24
CN101571213A2009-11-04
CN204062201U2014-12-31
DE202011103520U12011-12-20
US3042080A1962-07-03
Attorney, Agent or Firm:
WUHAN DONGYU PATENT AGENCY (CN)
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