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Processing technology for copper and titanium composite pipe

A technology of composite pipe material and processing technology, which is applied in the field of titanium pipe processing, can solve the problems of being unable to adapt, the surface of titanium-copper composite rods is easy to be rough, etc., and achieve the effects of good surface quality, grain refinement, and sufficient annealing

Inactive Publication Date: 2018-12-18
SUZHOU JINXIANG TITANIUM EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the surface of the produced titanium-copper composite rod is prone to roughness, which cannot be adapted to some high-demand occasions.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A processing technology of copper-titanium composite pipe, comprising the following steps:

[0021] (1) The lubricant is sprayed on the surface of the copper rod, and at the same time, the copper rod is placed in the titanium tube to obtain a titanium copper rod; the lubricant includes the following components in parts by weight: 20 parts of molybdenum disulfide, 10 parts of graphite , 25 parts of nano silicon dioxide and 2 parts of glass fiber.

[0022] (2) Put the titanium-copper rod in step (1) into the electric furnace to heat, keep the temperature of the electric furnace at 800-900°C, and draw it with a suitable mold;

[0023] (3) The drawn titanium-copper rod is rolled by a cold press for multiple passes, and degreasing treatment and annealing treatment are carried out after each rolling; the annealing treatment is specifically: under vacuum conditions, the tube blank is quickly Heat up to 280-320°C, keep warm for 10-15min; slowly heat up to 850-950°C, keep warm ...

Embodiment 2

[0029] A processing technology of copper-titanium composite pipe, comprising the following steps:

[0030] (1) Spray the lubricant on the surface of the copper rod, and at the same time, place the copper rod in the titanium tube to obtain a titanium copper rod; the lubricant is a mixture of molybdenum disulfide, graphite, nano-silica and glass fiber; the The parts by weight of the components of the lubricant are respectively: 30 parts of molybdenum disulfide, 15 parts of graphite, 35 parts of nano silicon dioxide and 8 parts of glass fiber.

[0031] (2) Put the titanium-copper rod in step (1) into the electric furnace to heat, keep the temperature of the electric furnace at 800-900°C, and draw it with a suitable mold;

[0032] (3) The drawn titanium-copper rod is rolled by a cold press for multiple passes, and degreasing treatment and annealing treatment are carried out after each rolling; the annealing treatment is specifically: under vacuum conditions, the tube blank is quic...

Embodiment 3

[0037] A processing technology of copper-titanium composite pipe, comprising the following steps:

[0038] (1) Spray the lubricant on the surface of the copper rod, and at the same time, place the copper rod in the titanium tube to obtain a titanium copper rod; the lubricant is a mixture of molybdenum disulfide, graphite, nano-silica and glass fiber; the The parts by weight of the components of the lubricant are respectively: 24 parts of molybdenum disulfide, 12 parts of graphite, 30 parts of nano silicon dioxide and 5 parts of glass fiber.

[0039] (2) Put the titanium-copper rod in step (1) into the electric furnace to heat, keep the temperature of the electric furnace at 800-900°C, and draw it with a suitable mold;

[0040] (3) The drawn titanium-copper rod is rolled by a cold press for multiple passes, and degreasing treatment and annealing treatment are carried out after each rolling; the annealing treatment is specifically: under vacuum conditions, the tube blank is quic...

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Abstract

The invention discloses a processing technology for a copper and titanium composite pipe. The processing technology includes the following steps that (1) a lubricant is sprayed on the surface of a copper rod, and meanwhile, the copper rod is placed in a titanium pipe to obtain a titanium copper rod; (2) the titanium copper rod in the step (1) is placed into an electric furnace for being heated, and drawing is conducted by being matched with an appropriate mold; (3) the titanium copper rod after drawing is multiply rolled by using a cold press, and oil removal treatment and annealing treatmentare carried out after each rolling; and (4) the burr and crack on the surface of the titanium copper rod are removed, the uneven parts on the two end faces of the titanium copper rod are cut off, polishing is conducted, and the copper and titanium composite pipe is obtained. By means of the processing technology, the copper and titanium composite pipe is manufactured through an explosion method, meanwhile, the lubrication is improved so as to make the surface of the copper and titanium composite pipe be smooth, through the treatment of segmented annealing, the titanium tube billet is thoroughin annealing, refined in grain, and uniform in texture layout, so that the wall thickness of the finished titanium pipe is uniform, and the surface quality is high.

Description

technical field [0001] The invention relates to a processing technology of a copper-titanium composite pipe, belonging to the technical field of titanium pipe processing. Background technique [0002] At present, the manufacturing methods of titanium-copper composite rods mainly adopt explosive composite method, hot extrusion method and other manufacturing methods. The national standard GB / T 12769-2003 of titanium-copper composite rods uses the above-mentioned manufacturing method to manufacture circular rods with a diameter of 20-60mm. Titanium copper composite rod. However, the surface of the produced titanium-copper composite rod is easy to be rough, which cannot meet some high-demand occasions. [0003] There are currently three different technologies for the surface treatment of titanium tubes: one is annealing and pickling, heat treatment and annealing after cold rolling, and then pickling with hydrofluoric acid and nitric acid to make the surface lose its silvery whi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21C37/06B21C9/02C22C14/00C22F1/02C22F1/08C22F1/18C21D9/08
CPCB21C37/06B21C9/02C21D9/08C22C14/00C22F1/02C22F1/08C22F1/183
Inventor 范祥荣王巍
Owner SUZHOU JINXIANG TITANIUM EQUIP
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