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Method and device for preparing metal composite pipe by interface fusion method

A metal clad pipe and fusion technology is applied in the field of preparing metal clad pipes by an interface fusion method, which can solve the problems of limited length of the clad pipe, occurrence of safety accidents, easy damage, etc., so as to achieve low production cost, reduce heat loss, and ensure quality. Effect

Active Publication Date: 2019-05-07
山东铁建臻品工程管理有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The metal clad plate or metal clad pipe prepared by using the traditional production process has insufficient bonding force between the base plate or base tube layer and the composite plate or base tube layer, especially the composite layer on the base tube blank with a thinner tube wall. Not only is it difficult, the length of the composite pipe is limited, but it is also prone to damage during use, resulting in safety accidents

Method used

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  • Method and device for preparing metal composite pipe by interface fusion method

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Comparison scheme
Effect test

Embodiment 1

[0027] A method for preparing a metal composite pipe by an interface fusion method adopts the following steps:

[0028] (1) Take two ceramic pipe molds, one of which is a cylindrical heating pipe mold 1 with an inner diameter and length of φ165mm*1200mm, and the other ceramic pipe mold is a pouring pipe mold 2 with a taper of 1000:1. And the length is φ169mm*1000mm, and the big head diameter of pouring pipe mold 2 is φ170.2mm, and the inner diameter of heating pipe mold 1 is 6mm larger than the rod core diameter, that is, the 20# steel pipe with a diameter of φ159mm and a wall thickness of 30mm is used as the rod core; The top opening of the pouring pipe mold 2 is covered with a ceramic plate 4, and an inverted tapered guide hole 5 is provided in the middle of the ceramic plate 4. The inner diameter of the bottom end of the guide hole 5 is 1mm larger than the diameter of the rod core, that is, φ166mm; the heating tube The axes of mold 1, pouring pipe mold 2 and guide hole 5 ar...

Embodiment 2

[0047] The difference between this embodiment and embodiment 1 is that: in step (5), when the melting point of the alloy metal liquid is higher than the melting point of the rod core, the temperature of the alloy metal liquid is above the melting point of the alloy metal liquid by 30°C.

Embodiment 3

[0049] The difference between this embodiment and embodiment 1 is that: in step (5), when the melting point of the alloy metal liquid is lower than the melting point of the rod core, the temperature of the alloy metal liquid is above the melting point of the rod core by 30°C.

[0050] Such as figure 1 As shown, a device for preparing metal composite pipes by interface fusion method includes a cylindrical heating pipe mold 1 and a pouring pipe mold 2 with a taper of 1000:1. The inner diameter of the heating pipe mold 1 is larger than the diameter of the rod core 3 Larger than 6mm, the thin end opening at the bottom of the pouring pipe mold 2 is closed and the diameter of the thin end opening is slightly larger than the outer diameter of the metal composite pipe; the top opening of the pouring pipe mold 2 is covered with a ceramic plate 4, and there is a An inverted tapered guide hole 5, the inner diameter of the bottom end of the guide hole 5 is 1mm larger than the diameter of ...

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Abstract

The invention discloses a method and device for preparing a metal composite pipe through an interface fusion method. The device for preparing the metal composite pipe through the interface fusion method comprises a cylindrical heating pipe mold and a pouring pipe mold with the taper being 1000:1. The lower end of the heating pipe mold is connected with a steel wire brush wheel derusting machine. The bottom of a box body of the steel wire brush wheel derusting machine is connected with a guide hole in the top of the pouring pipe mold. The joint of the steel wire brush wheel derusting machine, the heating pipe mold and the guide hole of the pouring pipe mold is sealed through heat-resisting silica gel. According to the method and device for preparing the metal composite pipe through the interface fusion method, a pouring cavity is formed between a ceramic mold and a matrix pipe layer, and a high-frequency heater can be used for heating the matrix pipe layer; the ceramic mold has the heat storage function, heat losses of the matrix pipe layer can be reduced, and secondary refusion of a composite interface can be achieved; and the defect that a traditional metal mold is not suitable for high-temperature heating and temperature control is overcome.

Description

technical field [0001] The invention relates to a method and a device for preparing a metal composite pipe by an interface fusion method. Background technique [0002] Metal composite materials such as composite plates, composite pipes, and composite rods refer to composite materials formed by metallurgical bonding of various metals with different chemical and mechanical properties on the interface by using composite technology, which greatly improves the thermal expansion of a single metal material. , strength, fracture toughness, impact toughness, wear resistance, electrical properties, magnetic properties and many other properties, so it is widely used in anti-corrosion, pressure vessel manufacturing, power construction, petrochemical, pharmaceutical, light industry, automobile and other industries. Combining metals with excellent properties on the base layer or base tube layer can not only achieve the best overall performance of the material, but also save the amount of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D19/16B22D27/00
CPCB22D19/0081B22D19/16B22D27/003
Inventor 孙劲腾张羊换贺怀芝孙学贤贺怀广
Owner 山东铁建臻品工程管理有限公司
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