A two-layer or multi-layer wear-resistant and impact-resistant pipe and its preparation method

An impact-resistant, double-layer technology, applied in the direction of pipes, pipe components, rigid pipes, etc., can solve the problems of poor wear resistance, short service life, poor wear resistance, etc., to ensure wear resistance, improve service life, and enhance The effect of abrasion resistance
CN105526449BActive Publication Date: 2018-03-20周朝辉
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
周朝辉
Publication Date
2018-03-20

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Abstract

The invention provides a two-layer or multi-layer wear-resistant and impact-resistant tube, the wear-resistant and impact-resistant tube includes: an outer layer protection tube (1) and an inner layer wear-resistant composite tube (2), and the inner layer is resistant to The grinding combined pipe (2) is nested in the outer protective pipe (1), and the inner wear-resistant combined pipe (2) is composed of two or more pieces of pipe walls, and the two or more pieces of pipe walls Spliced ​​together to form a tubular body with a ring-shaped cross section. The wear-resistant and impact-resistant pipe of the present invention can be a straight pipe or a bent pipe. In the case of straight pipes, the upper and lower parts of the inner wear-resistant composite pipe adopt heterogeneous structures; in the case of curved pipes, the large and small bends of the curved pipes adopt heterogeneous structures. In a word, the inner composite pipe of the wear-resistant and impact-resistant pipe of the present invention is divided into at least two parts, and at least the two parts are heterogeneous. Adopting the structure of the pipe body of the present invention can prolong its service life, enhance wear resistance and impact resistance, and reduce the total weight of the pipe body.
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Description

technical field

[0001] The invention relates to a conveying pipe structure applied in the fields of construction, mining, metallurgy, electric power, petroleum, coal, grain processing and the like, in particular to a two-part or multi-part double-layer wear-resistant and impact-resistant pipe and a preparation method thereof. Background technique

[0002] The forming technologies of pipes mainly include casting molding, molding, etc., which are all formed by molding molds, through casting or hot-cold pressing process; no matter what kind of machinery and equipment and pipes, most of them use pipes. Mainly used for oil, gas, liquid, powder, etc.; pipeline materials include cast iron, stainless steel, alloy steel, malleable cast iron, carbon steel, non-ferrous metals and plastics; in construction, mining, metallurgy, electric power, petroleum, In coal, grain processing and other industries, the transportation of materials is carried out by pipeline pressure, and the transporta...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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