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Machining method of small titanium and titanium alloy rod wire

A processing method and technology of titanium alloy, applied in the direction of manufacturing tools, metal rolling, furnace types, etc., can solve the problem of inability to directly produce bright and pollution-free finished rods and wires, uneconomical production of rare metals, and high investment in high-speed finishing mills. and other problems, to achieve the effect of being conducive to grain refinement, elimination of dynamic recrystallization, and improvement of production efficiency

Active Publication Date: 2018-06-26
宁夏中色金航钛业有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When cold-drawing rods and wires by roller dies, since the forming rods and wires are the main force-bearing side, there are disadvantages such as small deformation during the drawing process, easy to break the wires, etc., and the production efficiency is low.
[0009] The high-line finishing mill has a large investment (the value of the equipment is over 100 million yuan), which is suitable for steel and other common metal wire materials. It is very uneconomical to use titanium and titanium alloys in the production of rare metals.
At the same time, it is also a thermal processing method, which cannot directly produce bright and pollution-free finished rods and wires.

Method used

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  • Machining method of small titanium and titanium alloy rod wire

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] First take the titanium and titanium alloy bar blanks with a specification of Φ15mm, and use a coreless lathe to remove the 1mm thick surface oxide layer and defects to obtain bright, pollution-free and defect-free bright blanks. Then put the processed billet into a vacuum furnace for vacuum heating and heat preservation for 60 minutes, and then cool down to room temperature naturally with the furnace and leave the furnace. The titanium and titanium alloy rods with a diameter of Φ10mm are cold-rolled by the cold rolling unit, and the Φ10mm rods are placed in a vacuum furnace for 60 minutes of vacuum heating, and then naturally cooled to room temperature with the furnace and released from the furnace. Then the vacuum annealed Φ10mm bar is cold-rolled by a cold rolling mill, and rolled into a Φ7.5mm finished bar with a bright surface, no pollution, and no oxide layer. If the finished product needs to be annealed, it can be put into vacuum heating for 40 minutes, and then ...

Embodiment 2

[0036] First take titanium and titanium alloy bar blanks with a specification of Φ12mm, and use a coreless lathe to remove the surface oxide layer and defects with a thickness of 1mm to obtain bright, pollution-free and defect-free bright blanks. Then put the processed billet into a vacuum furnace for vacuum heating and heat preservation for 60 minutes, and then cool down to room temperature naturally with the furnace and leave the furnace. The titanium and titanium alloy rods with a diameter of Φ8mm are cold-rolled by the cold rolling unit, and the Φ8mm rods are placed in a vacuum furnace for 60 minutes of vacuum heating, and then naturally cooled to room temperature with the furnace and released from the furnace. Then the vacuum annealed Φ8mm bar is cold-rolled by a cold rolling mill, and rolled into a Φ6.0mm finished bar with a bright surface, no pollution, and no oxide layer. If the finished product needs to be annealed, it can be put into vacuum heating for 30 minutes, an...

Embodiment 3

[0038] First take the titanium and titanium alloy bar blanks with a specification of Φ10mm, and use a coreless lathe to remove the 1mm thick surface oxide layer and defects to obtain bright, pollution-free and defect-free bright blanks. Then put the processed billet into a vacuum furnace for vacuum heating and heat preservation for 60 minutes, and then cool down to room temperature naturally with the furnace and leave the furnace. The titanium and titanium alloy rods with a diameter of Φ7mm are cold-rolled by the cold rolling unit, and the Φ7mm rods are placed in a vacuum furnace for 60 minutes of vacuum heating, and then naturally cooled to room temperature with the furnace and released from the furnace. Then the vacuum annealed Φ7mm bar is cold-rolled by a cold rolling mill, and rolled into a Φ5.0mm finished bar with a bright surface, no pollution, and no oxide layer. If the finished product needs to be annealed, it can be put into vacuum heating for 30 minutes, and then coo...

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Abstract

The invention provides a machining method of a small titanium and titanium alloy rod wire, and belongs to the field of heat treatment of metal materials. According to the machining method, a single customized two-roll mill or a plurality of customized two-roll mills in series connection are used for cold rolling to prepare titanium and titanium alloy, and the single two-roll mill or the multiple two-roll mills in series connection are provided with holes located on the same axis, and a motor drives rolls to rotate to roll the rod wire. By adoption of the machining method, the labor intensity in the production process is low, auxiliary lubricating agents are not needed, and pollution to the field environment is avoided. In the rolling process, a matched heating furnace does not need to be heated, a matched wire drawing machine for traction is not needed, energy consumption is low, surface defects of products are few, and a lubricating agent-polluted layer is avoided. A finished productdoes not need to be processed by a peeling machine, the bright rod wire without a polluted layer can be directly produced, and the product has the characteristics of high yield, high surface quality,high machining efficiency and the like.

Description

technical field [0001] The invention belongs to the field of heat treatment of metal materials, in particular to a processing method for titanium and titanium alloy rods and wires. Background technique [0002] At present, the processing of titanium and titanium alloy rods and wires with a diameter of Φ≤10mm generally adopts continuous multi-pass hot rolling to produce raw material rods with a diameter of Φ10~Ф15. The main production methods are as follows: [0003] <1> Hot processing of fixed die drawing: peel off the raw material billet to remove the oxide layer, eliminate hot rolling defects and present a bright metal surface, first heat the oxidized surface with a heating furnace (the oxide layer is conducive to coating lubricant), and use a heating furnace to heat , Lubricant lubrication, different diameters of rods and wires are produced by drawing through fixed dies with different hole types and wire drawing machines. In the process of processing, the product ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21C37/04B21B1/16C21D9/52
Inventor 王晓平刘彦昌王培军李修勇朱宝辉胡晓晨王晖晖
Owner 宁夏中色金航钛业有限公司
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