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A connector for connecting metal pipes

A technology of metal pipes and connectors, applied in the direction of pipes/pipe joints/fittings, flange connections, pipes, etc., can solve the problems of low pressure bearing capacity, affecting the service life of pipes, and poor sealing effect

Active Publication Date: 2021-05-18
远军热能动力科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Another is that the pipe is directly made into a structure with one end enlarged during production and processing, so that one end of the other pipe can be inserted into the enlarged end and fixed. Some pipes are also provided with lining, but the lining is set on the steel pipe. The connection structure between them is unstable and easy to loosen and fall, the pipeline structure is easy to become weak, and the pressure bearing capacity is low. The pipeline connection is prone to breakage and poor sealing effect, which affects the service life of the pipeline.

Method used

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  • A connector for connecting metal pipes
  • A connector for connecting metal pipes
  • A connector for connecting metal pipes

Examples

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Embodiment Construction

[0042] like Figure 1-7 Shown: a method for connecting steel pipes 1, the interface ends of two steel pipes 1 are connected by connecting bolts, the interface ends of steel pipes 1 are heated and rotated, and inner necks are formed through necking processing, and the inner necks are thickened toward the inward flanging of steel pipes 1 An inner notch 5 is formed, and an inner thread is arranged in the inner constriction, and the inner thread is respectively connected to two ends of the connecting bolt.

[0043] The inner necking process is to fix the workpiece on the fixture first, and heat the processing end of the workpiece. The heating temperature range is 500-1800 ° C. While heating, the workpiece is rotated, so that the workpiece is in contact with the inner necking processing mold and moves relatively. The end is extruded and flanged, and the processing end is shaped at the same time. The inner shrinking processing mold is made of hard material, and the workpiece rotatio...

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Abstract

The invention provides a connecting head for connecting metal pipes. Two metal pipes are connected by the connecting head through the connecting head. The thread and the internal thread are respectively connected at both ends of the connecting bolt. The metal pipe is processed by extruding the inner flanging to form the inner shrinkage. While extruding the inner flanging, the thickness of the inner flanging increases, so that the connecting end of the metal pipe end is integrally formed with the metal pipe, which is convenient for raising the metal pipe end. The strength of the structure is convenient to improve the connection strength between the connecting bolts, which can effectively prevent the metal pipe from loosening or breaking between the connecting bolts, and facilitate the improvement of the connection sealing effect.

Description

technical field [0001] The invention relates to the technical field of pipe connection, in particular to a connection head for connecting metal pipes. Background technique [0002] When the pipeline is produced, considering the processing technology requirements and the convenience requirements of transportation, there is generally a length limit, and the length of the pipeline laying is not limited. Therefore, the pipeline needs to be connected when it is laid and used. [0003] There are three ways to connect the pipe thread: a cylindrical internal thread inserted into a cylindrical external thread, a cylindrical internal thread inserted into a conical external thread, and a conical internal thread inserted into a conical external thread. Among them, the taper thread connection is a commonly used connection method. [0004] The parts where the flange connection of the steel pipe needs to be disassembled are related to the connection of valves, equipment, instruments, etc....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L9/02F16L23/18B21D19/10B21D15/04
CPCB21D15/04B21D19/10F16L9/02F16L23/18
Inventor 郭远军郭玉君
Owner 远军热能动力科技有限公司
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