CN104947015A - Quick recrystallization annealing method of titanium wire - Google Patents
Quick recrystallization annealing method of titanium wire Download PDFInfo
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- CN104947015A CN104947015A CN201410122451.2A CN201410122451A CN104947015A CN 104947015 A CN104947015 A CN 104947015A CN 201410122451 A CN201410122451 A CN 201410122451A CN 104947015 A CN104947015 A CN 104947015A
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Abstract
The invention relates to a quick recrystallization annealing method of a titanium wire, and provides a recrystallization annealing method which has the advantages of high production efficiency and low energy consumption, is simple to operate, is easy to remove the thin scale on the cold-drawn wire surface and avoids the phenomenon of increase of thermal expansion dimension. An induction heating mode is adopted to perform quick recrystallization annealing on the drawn finished wire product to obtain the titanium wire of which the recrystallization grain structure satisfies the requirements. The method is suitable for performing quick recrystallization annealing on the titanium wire of which the feed diameter or section thickness is less than or equal to 4mm.
Description
Technical field
The present invention relates to a kind of titanium silk material faster recrystallization method for annealing.
Background technology
The drawing of titanium silk material is processed with hot-work and cold working two kinds of modes, and hot-work blank, by the method for heating, reaches more than recrystallization temperature, the plasticity of material is good, carry out drawing by fixed mould again, larger heat distortion amount can be obtained, reach required size.Cold working blank carries out drawing by fixed mould or roller die, through mould under the effect of three-dimensional compressive stress, can obtain less cold deformation, reach required size.No matter hot-work or cold working; all there is the problem of materials processing sclerosis after the process; cause that the grain structure of material is disorderly and unsystematic, aberrations in property is very large; the heat treated way of general employing, more than heating blank to higher recrystallization temperature, the insulation regular hour; make the crystal grain recovery and recrystallization of material; the martensite of the axles such as crystal grain one-tenth or other regular shapes or austenitic state, in the process of annealing, also eliminate work hardening, the performance of material reaches unanimity.For turned blank anneal, because the heat after annealing that the lives forever heat-up time size that rises increases " becoming fat " phenomenon, and oxide skin thickens, and causes size to be difficult to accurate control, has that annealing efficiency is low, energy consumption large, the problem of complicated operation.
The invention provides a kind of titanium silk material faster recrystallization method for annealing, adopt the mode of induction heating to carry out faster recrystallization annealing to drawing finished silk material, recrystal grain can be obtained and organize satisfactory titanium silk material.The method production efficiency is high, energy consumption is low, simple to operate, the very thin easy removal of cold drawn hot candied material surface scale, avoid heat rise size increase phenomenon.Be applicable to feed intake diameter or section thickness≤4mm titanium silk material faster recrystallization annealing.
Summary of the invention
Titanium silk material recrystallization annealing principal feature of the present invention: according to the heat treating regime thermal creep stress 600 ~ 750 DEG C of conventional titanium silk material, type of heating is resistance furnace heating, and soaking time is 30 ~ 120 minutes.For faster recrystallization annealing, adopt the mode of induction heating that a material is rapidly heated to technological temperature, and stop soaking time.Faster recrystallization annealing is divided into online annealing and independent annealing two kinds of modes, is applicable to the recrystallization annealing of hot pull and cold drawn hot candied material respectively.
Recrystallize of the present invention is annealed principal feature online: for the hot candied material of hot-drawn, at the end of hot pull, infrared thermometer is adopted to detect Preform surface temperature, according to the temperature head Lookup protocol processing parameter of annealing temperature and silk material temperature, former drawing wire machine silk material is utilized to continue to advance, the titanium silk material drawn is carried out recrystallization annealing process online in induction heating device, and recrystallization annealing speed is identical with drawing speed.Due to hot pull speed, after hot pull, silk material temperature still retains and is about 350 ~ 500 DEG C, and induction heating only carries out 0.3 ~ 0.5 second, the rapid heating thermal compensation of about 100 ~ 250 DEG C, reaches blank technological temperature.After the hot candied material recrystallization annealing of hot-drawn, because heat-up time, the short heat size that rises that avoids increased phenomenon, surface keeps former casting skin state.
Recrystallize of the present invention is annealed separately principal feature: for cold drawn hot candied material, utilize independently drawing wire machine take-up and pay-off device that the titanium silk material that cold drawing completes is carried out anneal separately, silk material is rotated by the unwrapping wire of actinobacillus device and the take-up of take-up is rotated, and band movable wire material is advanced and carried out recrystallization annealing in induction heating device.According to silk material recrystallization annealing temperature and the temperature head Lookup protocol processing parameter with silk material temperature, general summer, set temperature difference was 580 ~ 680 DEG C, and winter, set temperature difference was 600 ~ 700 DEG C.Adopt infrared thermometer detect Preform surface temperature, induction heating device for cold working blank carry out 3 ~ 5 second rapid heating, blank temperature can raise 580 ~ 700 DEG C fast.Cold drawn hot candied material annealing rear surface is the thin oxide skin of low-level oxidation, and in light blue or light yellow, follow-up polishing is easily removed, and avoids the heat size that rises increase phenomenon because heat-up time is short.
The quick induction heating principal feature of the present invention: adopt infrared thermometer to detect Preform surface temperature, infrared thermometer detection+induction heating equipment automatization coordinated signals, silk material temperature can be judged as cold drawn hot candied material lower than 50 DEG C, Lookup protocol silk material recrystallization annealing temperature and speed, temperature head according to annealing temperature and silk material temperature arranges processing parameter, rapid heating carries out thermal compensation, reaches blank technological temperature.Because blank sectional dimension is less, less induction heating power can be utilized, induction heating equipment energy consumption, take up an area relatively little.
Embodiment
After the TC4 titanium silk material hot pull of embodiment 1: Ф 1.2mm, silk material temperature is still left 550 ~ 600 DEG C, according to silk material recrystallization annealing temperature 700 DEG C and temperature head 100 ~ 150 DEG C of Lookup protocol processing parameters with silk material temperature, utilize former drawing wire machine silk material continue advance, induction heating device for hot wire drawing material blank carry out about 0.3 second rapid heating, blank temperature is increased to 700 DEG C fast, infrared thermometer detection+induction heating equipment automatization coordinated signals, if lower than 700 DEG C of induction heating auto-compensation heat energy, if automatically regulate reduction power higher than 700 DEG C of induction heating, the silk material of grain structure A1 ~ A4 can be obtained, silk material surface is former casting skin state, tolerance of dimension is former tolerance+0.02mm.
Embodiment 2: cold drawn for the pure titanium of Ф 3.0mm hot candied material is put into drawing wire machine, according to silk material recrystallization annealing temperature 600 DEG C and the temperature head 580 DEG C of Lookup protocol processing parameters with silk material temperature, induction heating device for cold drawn hot candied material blank carry out about 4 second rapid heating, blank temperature is increased to 600 DEG C fast, infrared thermometer detection+induction heating equipment automatization coordinated signals, if lower than 600 DEG C of induction heating auto-compensation heat energy, if automatically regulate reduction power higher than 600 DEG C of induction heating, grain fineness number >=7 grade can be obtained, the silk material of surface in the thin oxide skin of light blue low-level oxidation, tolerance of dimension is former tolerance+0.03mm.
Claims (2)
1. a titanium silk material faster recrystallization method for annealing, is characterized in that: be divided into online annealing and annealing two kinds of modes separately, the titanium silk material faster recrystallization annealing of be applicable to feed intake diameter or section thickness≤4mm; For the hot candied material of hot-drawn, at the end of hot pull, utilize former drawing wire machine silk material continue advance, silk material is carried out recrystallization annealing process online in induction heating device, induction heating only carries out 0.3 ~ 0.5 second, the rapid heating thermal compensation of about 100 ~ 250 DEG C, reach blank technological temperature, obtain recrystal grain tissue.
2. a titanium silk material faster recrystallization method for annealing, it is characterized in that: for cold drawn hot candied material, utilize independently take-up and pay-off device to be advanced in induction heating device by the titanium silk material that cold drawing completes and carry out recrystallization annealing process separately, silk material, induction heating device carry out 3 ~ 5 second rapid heating, blank temperature can raise 580 ~ 700 DEG C fast, reaches blank technological temperature, obtains recrystal grain tissue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410122451.2A CN104947015A (en) | 2014-03-31 | 2014-03-31 | Quick recrystallization annealing method of titanium wire |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410122451.2A CN104947015A (en) | 2014-03-31 | 2014-03-31 | Quick recrystallization annealing method of titanium wire |
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| CN104947015A true CN104947015A (en) | 2015-09-30 |
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| CN201410122451.2A Pending CN104947015A (en) | 2014-03-31 | 2014-03-31 | Quick recrystallization annealing method of titanium wire |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107604284A (en) * | 2017-10-11 | 2018-01-19 | 宝鸡市永盛泰钛业有限公司 | The recrystallization annealing method and surface treatment method and its elastomeric check device of titanium silk |
| CN115338277A (en) * | 2022-08-09 | 2022-11-15 | 北京首钢吉泰安新材料有限公司 | Iron-chromium-aluminum alloy material with bright gold yellow surface and preparation method thereof |
-
2014
- 2014-03-31 CN CN201410122451.2A patent/CN104947015A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107604284A (en) * | 2017-10-11 | 2018-01-19 | 宝鸡市永盛泰钛业有限公司 | The recrystallization annealing method and surface treatment method and its elastomeric check device of titanium silk |
| CN115338277A (en) * | 2022-08-09 | 2022-11-15 | 北京首钢吉泰安新材料有限公司 | Iron-chromium-aluminum alloy material with bright gold yellow surface and preparation method thereof |
| CN115338277B (en) * | 2022-08-09 | 2023-11-28 | 北京首钢吉泰安新材料有限公司 | Iron-chromium-aluminum alloy material with golden bright surface and preparation method thereof |
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Application publication date: 20150930 |