Welding joint of fuel tank
A technology of welding joints and fusion welding, which is applied in the direction of non-detachable pipe connections, pipes/pipe joints/fittings, passing components, etc., can solve the problems of fuel penetration resistance and strength reduction, and achieve good fuel penetration resistance, excellent Effect of fuel exudation resistance and weld strength
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[0056] Now, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
[0057] refer to figure 1 , Reference numeral 10 denotes a resin fuel tank. Here, the fuel tank 10 includes an outer layer 10-1 and an inner layer 10-2 made by using HDPE resin, and it has a cross-sectional structure in which a thin barrier layer 10-3 is sandwiched between the outer layer and the inner layer.
[0058] In this case, the barrier layer 10-3 also forms an inner layer with respect to the outer layer 10-1.
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