Pipe and method for resisting erosion, abrasion and corrosion

#The present invention relates to a method of resisting erosion in a pipe and more particularly to the pipe resulting from said method which may also exhibit abrasion and corrosion resistant characteristics.

#In pipes for conveying fluid or materials therethrough and in containers for handling fluid or materials, the desirability of resisting erosion, abrasion and corrosion along an inner surface of the pipe or container is known for extending the life thereof. Conventional methods of lining pipes include spray on coatings, however these tend to bond poorly and do not provide considerable resistance to erosion. Use of ceramic liners in pipes is also known, however this involves a complex process in which the liner is typically formed separately from the pipe and then later installed in the pipe in a time consuming and costly manner. In general, known erosion resistant coatings do not provide suitable resistance to erosion while being readily applied to pipes.

#According to one aspect of the present invention there is provided a pipe comprising:

#In the accompanying drawings, which illustrate an exemplary embodiment of the present invention:

#FIG. 1 is an end view of a pipe which has been lined.

#FIG. 2 is an end view of the pipe shown supported in a mold for rotating the pipe.

#Referring the accompanying drawings there is illustrated a pipe generally indicated by reference numeral 10. The pipe 10 includes a lining 12 coating an inner surface 14 thereof to prevent erosion of the inner surface while also providing a durable corrosion and abrasion resistant layer.

#The pipe 10 includes a generally tubular body surrounding a longitudinal axis of the pipe. Respective ends 16 of the pipe are open for communication with adjacent sections of pipe when connected in a pipeline. The pipe is thus suitably arranged for conveying fluids and the like therethrough. The tubular body of the pipe has a steel composition.

#The lining 12 of the inner surface 14 of the pipe includes a layer of iron 18 and a layer of aluminum oxide 20. The layers are fused onto the pipe such that the layer of iron 18 is located directly adjacent the inner surface 14 of the tubular body of the pipe while the aluminum oxide layer 20 is positioned radially inwardly in relation to the iron layer adjacent an inner surface of the iron layer.