Heat-resistant glass steel tube and method for preparing same
A glass steel pipe, glass surface technology, applied in the direction of pipes, rigid pipes, mechanical equipment, etc., can solve problems such as reducing service life, and achieve the effect of preventing cracks, increasing axial and radial strength, and increasing strength
Inactive Publication Date: 2012-05-30
郝振亚
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Problems solved by technology
[0006] The task of the present invention is to provide a heat-resistant glass steel pipe that solves the problems of reduced service life due to thermal expansion by increasing the anti-seepage performance of the inner lining layer during thermal deformation and automatically compensating for axial expansion.
Method used
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[0016] see figure 1 and figure 2 , these two drawings show a schematic view of the appearance structure of an embodiment of the heat-resistant glass steel pipe 1 proposed by the present invention. The pipe wall of the heat-resistant glass steel pipe includes an inner lining layer 11 , an intermediate layer 12 , and an outer thermal insulation layer 13 .
[0017] The inner liner 11 is made of an unsaturated polyester resin layer and double-layer glass surface felt, glass fiber stitching felt, and chemical fiber grid cloth wound on the outer surface of the unsaturated polyester resin layer in sequence (because the glass surface felt, glass Fiber stitched felt and chemical fiber grid cloth are relatively thin, and the specific structure is not shown in the figure). Wherein the unsaturated polyester resin is made of 199# unsaturated polyester resin. 30g / m2 glass surface felt 2 glass surface felt. During production, first remove the dust on the surface of the round tube mold ...
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Abstract
The invention relates to a heat-resistant glass steel tube and method for preparing the same. The glass surface felt in a lining layer of the glass steel tube comprises two layers, and the outer surface of an intermediate layer is combined with a heat-insulated layer; and the tube wall at one end of the glass steel tube is provided with a jack which are radially protruded, while the other end is provided with a socket of which the inner wall is radially expanded outward and in which the jack is inserted; the axial length of the socket is greater than that of the jack, the lining layer and theintermediate layer are made in a winding mode, and the heat-insulated layer is made in a combined mode. By using the double-layer glass surface felt, the strength of the lining layer is improved and cracking or micro crack propagation of unsaturated polyester resin in the lining layer is avoided, so that the heat-resistant glass steel tube has quite good impervious performance.
Description
technical field [0001] The invention relates to a heat-resistant glass steel pipe and a method for preparing the heat-resistant glass steel pipe. Background technique [0002] FRP is a plastic reinforced with glass fibers, and FRP pipes are tubes made of FRP. Traditional glass steel pipes are made of glass fibers and plastics through winding or multi-layer winding. compared to. However, due to the high thermal expansion coefficient of both glass fiber and plastic, when the temperature of the fluid being transported is high, on the one hand, the glass steel pipe will become soft and its strength will decrease; on the other hand, the expansion of the pipeline will make the pipeline damaged. [0003] For this reason, the disclosed name of Chinese Patent No. 1326064A is called "high-strength fiberglass composite pipe" and provides a kind of solution. This kind of composite pipe adopts a steel pipe as the core layer, and a glass fiber reinforced plastic layer is compounded on...
Claims
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IPC IPC(8): B29C70/00F16L9/12B29D23/00B29C70/34B29C44/18B29C70/68
Inventor 郝振亚
Owner 郝振亚