Titanium Steel Composite Tube

Titanium steel composite tubes and pipes use internal pressure mold technology to produce frictional shrinkage of the inner and outer pipes, converting part of the mechanical energy into thermal energy, so that the inner pipe reaches the first softening point; the two materials can interfere and closely fit.

The titanium and steel combination is strength, compactness, and low energy consumption, The pipe is more stable and with perfect, excellent corrosion resistance.

The titanium steel composite pipe comprises a steel base pipe; the titanium-based pipe is sleeved on the steel base pipe and is in an interference fit with the steel base pipe; a transition foil is arranged between the steel base pipe and the titanium base pipe, and the transition foil is welded with the outer wall of the steel base pipe. The embodiment of the utility model provides a titanium steel composite pipe, by adding transition foil between the base steel pipe and titanium base pipe, and connecting the titanium base pipe and base steel pipe through interference fit's mode, making transition foil pass through the dual function of pressure and temperature, diffuse between base steel pipe and the titanium base pipe, the new interface of formation, the intensity on this interface is up to 600 megapascals, the titanium steel composite pipe that reaches this intensity can be arranged in the service environment receives high pressure, high temperature and high impact load's effect.

In certain fields, the pipe components are required to withstand high pressures, temperatures, and high-impact loads, while at the same time having high requirements regarding overall weight, structural dimensions, and service life. The use of single materials reaches the limit of materials, and the breakthrough from composite materials is hoped to greatly improve the service life of pipe parts and the like. The composite material has the characteristics of lightweight, high strength, and easy molding.

The common manufacturing methods of composite pipe are a mechanical spinning method, an explosion cladding method, a drawing cladding method, and a hydraulic cladding method.

The quality of the Titanium steel composite tube must meet the following requirements:

The thickness of the titanium layer should be uniform, which is an important requirement to ensure the service life of the Zr-clad copper rod. Generally, the thickness of the zirconium layer should be controlled within +/- 20%, and the thickness of the titanium layer is 0.8~3mm as you need.

Titanium steel composite tubes bonding rate is that the bonding area should generally be greater than 95%. The higher the indicator, the better its conductivity. Conductivity can be tested by a JB/100G A type pulse reflection ultrasonic flaw detector.

Titanium steel bonding strength, in the course of use, the size of this index determines whether titanium-coated steel pipe will cause titanium-steel delamination due to thermal expansion and contraction. In theory, the bonding strength should pass the shear test, but the resignation test method is a destructive test, which is generally difficult to use in actual production. Before the assembly, the titanium-clad steel tube needs a certain amount of mechanical processing.

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