CN103540772B - Two-end-point-arranged pure titanium smelting method - Google Patents
Two-end-point-arranged pure titanium smelting method Download PDFInfo
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- CN103540772B CN103540772B CN201310414538.2A CN201310414538A CN103540772B CN 103540772 B CN103540772 B CN 103540772B CN 201310414538 A CN201310414538 A CN 201310414538A CN 103540772 B CN103540772 B CN 103540772B
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Abstract
The invention relates to a two-end-point-arranged pure titanium smelting method. The two-end-point-arranged pure titanium smelting method is characterized in that a scanning track of a 4#EB gun is designed to adopt a two-end-point-arranged method, two points which are originally located at an overflow side are scattered to the two ends, graphics are changed, and the graphics of both points are changed into longitudinal elliptical shapes, so that energies of the graphics completely cover two narrow faces, and the energy of each graphic is controlled to be 8%-11% of the 4#EB gun. According to the method, defects can be eliminated, the two narrow faces can be as flat and smooth as a large face, and the mill cutting load and artificial grinding load are reduced, so that the yield rate is increased.
Description
Technical field
The invention belongs to EB stove vacuum smelting method technical field.
Background technology
In the middle of the process of the pure titanium of EB stove vacuum melting, due to the effect of water coolant, the speed of cooling of two leptoprosopy of ingot bar is far longer than the speed of cooling of large face, causes the energy of two leptoprosopy inadequate.According to former experience, can produce many defects of hanging such as pit, shrinkage, cold shut, fold, condensation at two leptoprosopy of ingot bar, have a strong impact on the lumber recovery of titanium ingot.
In former fusion process, 4#EB we adopt be the track while scan shown in accompanying drawing 1, in Fig. 1, the position on the left side is return side, the right is non-return side.This processing method is that two points are all placed on to return side, and one be circular, and one is horizontal ellipse.But according to former effect, can produce the defects such as pit, shrinkage, condensation extension in return side, but not return side can produce the defects such as cold shut, fold, condensation extension.According to trial and analysis repeatedly, sum up: these defects are all because two ends energy is inadequate cooling too fast causing.
Summary of the invention
Task of the present invention will be eliminated as much as possible these defects and makes two leptoprosopy can both be the same with large face smooth smooth by changing melting technology exactly, reduces milling machine cutting output and artificial reconditioning quality, thereby improves lumber recovery.
The present invention determines optimum smelting technique: track and the energy distribution of 4#EB rifle scanning pattern.According to trial and adjustment repeatedly, finally sum up the smelting process of this " setting up an office in two ends ".Its technical spirit is to increase the energy distribution of two leptoprosopy, makes two leptoprosopy and large face keep identical speed of cooling, avoid two leptoprosopy due to energy not and quilt ' cooling in advance '.Thereby avoid the generation of ingot bar defect.
The technological process of the concrete technical scheme of the present invention is as follows:
The method of the pure titanium of a kind of " setting up an office in two ends " melting, feature of the present invention is, the rifle track while scan of 4#EB is designed to adopt to the method for " setting up an office in two ends ", to originally be distributed to two ends at two points of return side, and change figure, all make longitudinal ellipticity into by two, make their energy cover two leptoprosopy completely, the energy of each figure be controlled at 4#EB rifle 8%-11% between.
the invention has the beneficial effects as follows
Through facts have proved for a long time, the titanium ingot melting out by the melting technology of this " setting up an office in two ends ", owing to having strengthened energy and the graphical distribution at two ends, two ends are no longer because energy is cooling not and in advance, so two sides of the titanium ingot melting out can be equally smooth, smooth with large face, thereby improve greatly the lumber recovery of titanium ingot.
Brief description of the drawings
Fig. 1 is track and the energy distribution of existing 4#EB rifle scanning pattern;
Fig. 2 is track and the energy distribution of 4#EB rifle scanning pattern of the present invention.
Embodiment
See Fig. 2, the method of the pure titanium of a kind of " setting up an office in two ends " melting, feature of the present invention is, the rifle track while scan of 4#EB is designed to adopt to the method for " setting up an office in two ends ", by being originally distributed to two ends at two points of return side, and change figure, all make longitudinal ellipticity into by two, make their energy cover two leptoprosopy completely, the energy of each figure be controlled at 4#EB rifle 8%-11% between.
Claims (1)
1. the method for the pure titanium of " setting up an office in two ends " melting, it is characterized in that, the rifle track while scan of 4#EB is designed to adopt to the method for " setting up an office in two ends ", to originally be distributed to two ends at two points of return side, and change figure, all make longitudinal ellipticity into by two, make their energy cover two leptoprosopy completely, the energy of each figure be controlled at 4#EB rifle 8%-11% between.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310414538.2A CN103540772B (en) | 2013-09-12 | 2013-09-12 | Two-end-point-arranged pure titanium smelting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310414538.2A CN103540772B (en) | 2013-09-12 | 2013-09-12 | Two-end-point-arranged pure titanium smelting method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103540772A CN103540772A (en) | 2014-01-29 |
| CN103540772B true CN103540772B (en) | 2014-10-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310414538.2A Active CN103540772B (en) | 2013-09-12 | 2013-09-12 | Two-end-point-arranged pure titanium smelting method |
Country Status (1)
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| CN (1) | CN103540772B (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62280335A (en) * | 1986-05-30 | 1987-12-05 | Toshiba Corp | High-purity titanium material and its production |
| JP2010116581A (en) * | 2008-11-11 | 2010-05-27 | Toho Titanium Co Ltd | Method for producing titanium ingot using vacuum arc melting furnace |
| CN102825243A (en) * | 2012-08-02 | 2012-12-19 | 云南钛业股份有限公司 | Technique for EB (Electron Beam) furnace smelting pure titanium feeding |
| CN103017559B (en) * | 2012-11-16 | 2014-12-10 | 云南钛业股份有限公司 | Method of electron beam scanning patterns during preheating process of EB (Electron Beam) furnace |
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- 2013-09-12 CN CN201310414538.2A patent/CN103540772B/en active Active
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| CN103540772A (en) | 2014-01-29 |
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