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Taper pipe and manufacturing method thereof and concrete pumping device

A manufacturing method and conical pipe technology, applied in the field of conical pipe and its manufacture, and concrete pumping equipment, can solve the problems of difficult control of welding quality, large flow resistance on the inner wall of conical pipe, high manufacturing cost, etc., and achieve good impact resistance and toughness , the effect of high hardness and wear resistance

Inactive Publication Date: 2014-10-01
SANY AUTOMOBILE MFG CO LTD
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0004] In view of this, the present invention proposes a conical tube and its manufacturing method to solve the problems of large flow resistance, high manufacturing cost and difficult control of welding quality in the existing conical tube inner wall

Method used

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  • Taper pipe and manufacturing method thereof and concrete pumping device
  • Taper pipe and manufacturing method thereof and concrete pumping device

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Embodiment Construction

[0025] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0026] like figure 1 As shown, the specific embodiment of the present invention proposes a conical pipe, which is mainly used for conveying materials, especially for conveying concrete. The conical pipe includes an outer pipe layer 1 and an inner pipe layer 2. It gradually becomes larger from one end to the other, and the outer layer 1 of the pipe and the inner layer 2 of the pipe are tightly combined by rolling, wherein the inner layer 2 of the pipe is a wear-resistant layer made of a plate of medium-carbon low-alloy steel or high-carbon low-alloy steel , The outer layer 1 of the pipe is used as a protective layer and is made of a low carbon steel plate. Specifically, the inner layer 2 of the ...

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Abstract

The invention discloses a concrete pumping device and a taper pipe thereof. The taper pipe is provided with a pipe outer layer and a pipe inner layer which are closely combined through rolling; the pipe diameter defined by the pipe inner layer is gradually increased from one end to the other end; the pipe inner layer is an abrasion-resistant layer and is formed by medium-carbon low-alloy steel or high-carbon low-alloy steel plates; the pipe outer layer is formed by low-carbon steel plates. According to the concrete pumping device and the taper pipe, the problems that the existing taper pipe is large in inner wall flow resistance and high in manufacturing cost and the welding quality is difficult to control are solved. The invention also discloses a manufacturing method of the taper pipe.

Description

technical field [0001] The invention relates to wear-resistant and pressure-resistant conveying pipeline technology, in particular to a tapered pipe and a manufacturing method thereof; in addition, it also relates to a concrete pumping equipment with the tapered pipe. Background technique [0002] In modern infrastructure construction, the market demand for concrete pumping equipment such as concrete pump trucks, truck-mounted pumps and towed concrete pumps is increasing. Concrete pumping equipment can provide appropriate pressure to pour concrete at the predetermined location through the delivery pipeline. . It can be seen that the conveying pipe is one of the most important parts in the pumping equipment, and the conical pipe is one of the conveying pipes. During the process of conveying concrete, on the one hand, the inner wall of the conical pipe has to withstand the continuous erosion and erosion of the concrete slurry. Wear and tear; on the other hand, the tapered pip...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L9/02B21C37/18
CPCF16L9/17B21C37/185
Inventor 欧耀辉陈欣
Owner SANY AUTOMOBILE MFG CO LTD
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