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Copper-nickel-iron pipeline connection pipe fitting and preparation thereof

A technology for connecting pipe fittings and pipes, which is applied in the field of copper-nickel-iron pipe connecting pipe fittings and its preparation, and can solve problems such as safety accidents, difficulty in ensuring the normal use of rubber gasket seals, gas or liquid leakage, etc.

Inactive Publication Date: 2013-06-19
上海世航铜镍管件有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Butt connection pipe fittings are generally sealed with rubber gaskets, which can be used for a long time under low pressure conditions, but it is difficult to ensure the normal use of rubber gaskets under high pressure or high temperature conditions
The aging of the rubber pad and the corrosion of the medium make the seal unable to meet the long-term sealing requirements, especially when toxic and harmful gases or liquids run in the piping system, causing gas or liquid leakage, which is extremely harmful and easy into a security incident

Method used

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  • Copper-nickel-iron pipeline connection pipe fitting and preparation thereof

Examples

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Embodiment Construction

[0006] Below in conjunction with accompanying drawing, take the connecting pipe fitting of copper-nickel-iron alloy as example, the present invention will be further described:

[0007] See attached figure 1 , the mating arc surface 3 of the outer convex joint 1 and the inner concave joint 4 is offset, and the set nut 2 is buckled outside the step 2-1 of the outer convex joint 1 and connected with the thread of the inner concave joint 4 .

[0008] See attached figure 1 , use copper-nickel-iron alloy to add refractory nickel to the bottom, add copper, and then add old materials and covering agent to melt, take samples and analyze, adjust the content of metal elements to meet the composition requirements of copper-nickel-iron alloy, carry out deoxidation refining, when the furnace The temperature rises to the range of 1350-1450°C, remove the slag, add Cu-Mg alloy for deoxidation, and remove the oxygen in the copper liquid; the molten liquid is poured into the mold respectively,...

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Abstract

The invention provides a copper-nickel-iron pipeline connection pipe fitting and preparation thereof. The copper-nickel-iron pipeline connection pipe fitting comprises an outwards protruded surface joint, an inwards concave surface joint and a locking nut. The copper-nickel-iron pipeline connection pipe fitting is characterized in that the meshed positions of the outwards protruded surface joint and the inwards concave surface joint are provided with meshed arc surfaces. The preparation includes shove charging, smelting, sampling, analyzing, deoxidizing, refining, casting, forging and pressing, and finish machining. Compared with the prior art, a rubber pad is removed, cost is relatively saved, and the copper-nickel-iron pipeline connection pipe fitting is completely adapted to pipeline connection on the condition of high pressure or high temperature. Meanwhile, as the forging and pressing process is utilized, mechanical performance is improved, non-cutting or little cutting is achieved, alloy material is saved, and production cost is reduced. The copper-nickel-iron pipeline connection pipe fitting has the advantages of being convenient to connect, firm to connect, and high in seal degree, and pipeline connection is safe.

Description

technical field [0001] The invention relates to a copper-nickel-iron pipe connecting pipe fitting and its preparation, and relates to the technical field of design and manufacture of pipe connecting pipe fittings, in particular to a copper-nickel-iron pipe connecting pipe fitting. Background technique [0002] At present, in the process of transporting liquid or gas, the method of pipeline transportation is generally adopted, which is convenient and safe, but in the process of pipeline installation, it is necessary to use pipeline connection fittings to connect the delivery pipes into one body to form a delivery pipeline. Due to the occasion and pressure requirements of use, its connection methods include welding, flange connection, thread connection, etc. Two conveying pipes are connected within a short distance, butt connecting pipe fittings are generally used to connect the two conveying pipes into one body and open up the entire pipe system. Butt connection pipe fitting...

Claims

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Application Information

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IPC IPC(8): F16L19/025B23P15/00
Inventor 杨建忠
Owner 上海世航铜镍管件有限公司
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