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Production method for L type titanium alloy section materials

A production method, titanium alloy technology, applied in the direction of metal rolling, etc., can solve the problems of large processing volume, difficult to produce profiles in large quantities, and low utilization rate, so as to achieve improved yield, simple and controllable production process, and reduce Product Cost Effects

Active Publication Date: 2013-12-25
沈阳和世泰通用钛业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The stress at the corner is very large, easy to deform, and the corner cannot meet the requirements of high strength
The second method is to machine the square material that meets the side length size, so the utilization rate of the material is very low, less than 20%. At the same time, the processing volume is large, the cost is high, and the processing process is easily deformed.
Therefore, both methods are difficult to mass-produce profiles

Method used

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  • Production method for L type titanium alloy section materials
  • Production method for L type titanium alloy section materials
  • Production method for L type titanium alloy section materials

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A method for producing an L-shaped titanium alloy profile, comprising the following steps:

[0027] 1. The raw material is titanium alloy round bar blank of brand TA15, Φ90mm×1000mm;

[0028] 2. After the bar is heated to 980°C with a box-type resistance furnace, it is rolled into a square bar of 46×46×1000mm with a 430 horizontal open-end rolling mill;

[0029] 3. After flaw detection with an ultrasonic flaw detector, saw and cut into 600mm long material sections, and use a portable grinder to grind the surface so that the surface has no cracks and no defects;

[0030] 4. Then heat it up to 960°C with a box-type resistance furnace, keep it warm for 1 hour, and send it to the first two stands of the Φ280 horizontal open-end rolling mill equipped with a rolling guide device. The rolling speed is 1m per second, and 5 passes are carried out in sequence. First rolling, design the dies for the passes of the 5-pass rolling in turn, and the passes of the 5-pass rolling are K5...

Embodiment 2

[0040] A method for producing an L-shaped titanium alloy profile, comprising the following steps:

[0041] 1. The raw material is titanium alloy round bar blank of brand TC2, Φ90mm×1000mm;

[0042] 2. After the bar is heated to 1020°C with a box-type resistance furnace, it is rolled into a square bar of 46×46×1000mm with a 430 horizontal open-end rolling mill;

[0043] 3. After flaw detection with an ultrasonic flaw detector, saw and cut into 600mm long material sections, and use a portable grinder to grind the surface so that the surface has no cracks and no defects;

[0044] 4. Then heat it up to 980°C with a box-type resistance furnace, keep it warm for 1 hour, and send it to the first two stands of the Φ280 horizontal open-end rolling mill equipped with a rolling guide device. The rolling speed is 3m per second, and 5 passes are carried out in sequence. First rolling, design the dies for the passes of the 5-pass rolling in turn, and the passes of the 5-pass rolling are K5...

Embodiment 3

[0054] A method for producing an L-shaped titanium alloy profile, comprising the following steps:

[0055] 1. The raw material is titanium alloy round bar blank of brand TC2, Φ90mm×1000mm;

[0056] 2. After the bar is heated to 1000°C with a box-type resistance furnace, it is rolled into a square bar of 45×45×1000mm with a 430 horizontal open-end rolling mill;

[0057] 3. After flaw detection with an ultrasonic flaw detector, saw and cut into 600mm long material sections, and use a portable grinder to grind the surface so that the surface has no cracks and no defects;

[0058] 4. Then heat it up to 970°C with a box-type resistance furnace, keep it warm for 1 hour, and send it to the first two stands of the Φ280 horizontal open-end rolling mill equipped with a rolling guide device. The rolling speed is 2m per second, and 5 passes are carried out in sequence. First rolling, design the dies for the passes of the 5-pass rolling in turn, and the passes of the 5-pass rolling are K5...

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Abstract

The invention provides a production method for L type titanium alloy section materials, and belongs to the technical field of metal machining. The production method comprises the following steps of 1, using titanium alloy round bar blanks as raw materials; 2, heating the bars by a chamber electric furnace and rolling the bars into square bars; 3, performing flaw detection on the square bars by using an ultrasonic flaw detecting machine, and polishing the surfaces of the square bars by using a portable grinding machine; 4, rolling the square bars; 5, trimming surfaces of the square bars; 6, straightening the square bars by using a roll straightening machine; 7, performing alkali washing and acid washing on the surfaces of the square bars; and 8, and performing flaw detection on the square bars again by using the flaw detecting machine. The production method has the advantages that section materials rolled by using the method meet all performance indexes of aviation section materials. The production process is simple and controllable, the material yield can be improved by 35% at least, the material using ratio can be up to about 60%, the cost for products is greatly reduced, and important conditions on mass production are achieved.

Description

technical field [0001] The invention belongs to the technical field of metal processing, in particular to a method for producing an L-shaped titanium alloy profile. Background technique [0002] At present, the real production of L-profiles in China is still blank. There are two main alternative production methods. One is to use plate bending. The result of such processing is that the bent corners cannot be at right angles. The stress at the corner is very large, and it is easy to deform, and the corner cannot meet the requirements of high strength. The second method is to machine the square material that meets the side length size, so that the utilization rate of the material is very low, less than 20%. At the same time, the processing volume is large, the cost is high, and the processing process is easily deformed. Therefore, both methods are difficult to mass-produce profiles. Contents of the invention [0003] Aiming at the deficiencies of the prior art, the present ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B1/09
Inventor 张金和
Owner 沈阳和世泰通用钛业有限公司