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High strength seamless titanium alloy circular tube

A seamless titanium alloy, high-strength technology, applied in metal rolling and other directions, can solve the problems of low yield, complex processing technology, low strength of titanium tubes, etc., and achieve high qualified rate of finished products, simple processing technology and good toughness Effect

Inactive Publication Date: 2015-07-01
CHANGSHU SHUNAGYU COPPER IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the continuous expansion of application fields, the demand for titanium alloy tubes is also increasing, but the existing titanium alloy tubes have complex processing technology, low yield, and low strength of titanium tubes made of existing titanium alloy materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] A high-strength seamless titanium alloy round tube, the high-strength seamless titanium alloy round tube is made of high-strength titanium alloy as a raw material, the composition of the high-strength titanium alloy and the weight percentage of each component are: aluminum 9% iron powder, 6% iron powder, 1.5% molybdenum powder, 0.8% vanadium powder, 2% tin powder, and 80.7% titanium powder. The metal powders of the above components are mixed together and put into the melting furnace, and heated at a high temperature of 1000 ℃ Downcasting into a billet, and then subjecting the billet to homogeneous annealing at a temperature of 800°C, taking it out after 2 hours of heat preservation, and finally sending the billet into the mold cavity by drilling and extrusion, and passing through the mold drill Holes are extruded into titanium alloy round tubes.

Embodiment 2

[0013] A high-strength seamless titanium alloy round tube, the high-strength seamless titanium alloy round tube is made of high-strength titanium alloy as a raw material, the composition of the high-strength titanium alloy and the weight percentage of each component are: aluminum 8% iron powder, 8% iron powder, 0.5% molybdenum powder, 0.5% vanadium powder, 1.5% tin powder, and 81.5% titanium powder. The metal powders of the above components are mixed together and put into the melting furnace, and heated at a high temperature of 1200 ℃ Downcasting into a billet, and then subjecting the billet to homogeneous annealing at a temperature of 850°C, taking it out after 2 hours of heat preservation, and finally sending the billet into the mold cavity by drilling and extruding. Holes are extruded into titanium alloy round tubes.

Embodiment 3

[0015] A high-strength seamless titanium alloy round tube, the high-strength seamless titanium alloy round tube is made of high-strength titanium alloy as a raw material, the composition of the high-strength titanium alloy and the weight percentage of each component are: aluminum 11% iron powder, 5% iron powder, 1% molybdenum powder, 0.2% vanadium powder, 1% tin powder, and 81.8% titanium powder. The metal powders of the above components are mixed together and put into the melting furnace, and heated at a high temperature of 1200 ℃ Downcasting into a billet, and then subjecting the billet to homogeneous annealing at a temperature of 850°C, taking it out after 2 hours of heat preservation, and finally sending the billet into the mold cavity by drilling and extruding. Holes are extruded into titanium alloy round tubes.

[0016] The invention discloses a high-strength seamless titanium alloy round tube. The raw material is high-strength titanium alloy, the tensile strength reache...

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PUM

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Abstract

The invention discloses a high-strength seamless titanium alloy circular tube. The high-strength seamless titanium alloy circular tube is made from a high-strength titanium alloy material. The high-strength titanium alloy comprises the following components in percent by weight: 8-11% of aluminium powder, 5-8% of iron powder, 0.5-1.5% of molybdenum powder, 0.2-0.8% of vanadium powder, 1-2% of tin powder and the balance of titanium powder. The high-strength seamless titanium alloy circular tube is prepared by carrying out the following steps: mixing the metal powders together, putting the mixture into a smelting furnace, casting a rod blank at high temperature, then carrying out homogeneous annealing treatment on the rod blank at the annealing temperature of 800-850 DEG C, carrying out heat preservation for 2 hours, taking out the rod blank, finally feeding the rod blank into a mould cavity by adopting a drill hole extrusion way, and obtaining a titanium alloy circular tube by extruding by virtue of a drill hole of a mould. By virtue of the manner, the high-strength seamless titanium alloy circular tube has high tensile strength and toughness; meanwhile, a processing technology is simple, tube wall thickness is uniform, and passing rate of the finished products is high.

Description

technical field [0001] The invention relates to the field of titanium alloy pipes, in particular to a high-strength seamless titanium alloy round pipe. Background technique [0002] Titanium and titanium alloys are important structural metals. Because titanium and titanium alloys have excellent comprehensive properties such as low density, high specific strength, high temperature resistance, corrosion resistance, non-magnetic, and biocompatibility, their products have penetrated into aviation, Aerospace, ships, weapons, petroleum, chemical, medical and other fields. With the continuous expansion of application fields, the demand for titanium alloy tubes is also increasing, but the existing titanium alloy tubes have complex processing technology, low yield, and low strength of titanium tubes made of existing titanium alloy materials. Contents of the invention [0003] The technical problem mainly solved by the present invention is to provide a high-strength seamless titani...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C14/00C22F1/16B21B19/04
Inventor 薛红军
Owner CHANGSHU SHUNAGYU COPPER IND CO LTD