CN206689388U - A kind of glass fluxing technique suspension high undercooling Rapid Directional Solidification device - Google Patents
A kind of glass fluxing technique suspension high undercooling Rapid Directional Solidification device Download PDFInfo
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- CN206689388U CN206689388U CN201720455370.3U CN201720455370U CN206689388U CN 206689388 U CN206689388 U CN 206689388U CN 201720455370 U CN201720455370 U CN 201720455370U CN 206689388 U CN206689388 U CN 206689388U
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- glass
- directional solidification
- high undercooling
- solidification device
- heat
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Abstract
The utility model discloses a kind of glass fluxing technique suspension high undercooling Rapid Directional Solidification device.The coagulation system includes closed furnace body, glass tube, glass pepe gripper, ball-screw, sensing heater, heat-insulated formwork and the water cooled copper mould closed in closed furnace body provided with one end；The top of the sensing heater is provided with the glass tube of one end closing, and glass tube is moved up and down by the control of glass pepe gripper, and glass pepe gripper is driven by ball-screw；Heat-insulated formwork is provided with the lower section of sensing heater, heat-insulated formwork bottom is provided with water cooled copper mould；The heat-insulated formwork（6）And water cooled copper mould（7）Form die cavity.Thin column crystal can be obtained by the utility model device, be also easy to realize the slewing growth of block sample, production cost is low, simple to operate.
Description
Technical field
A kind of high undercooling device for directionally solidifying is the utility model is related to, belongs to metal material processing technology of preparing field.Tool
Body is related to a kind of glass fluxing technique suspension high undercooling Rapid Directional Solidification device.
Background technology
The characteristics of fine grain and column crystal, has been merged in ultra-fine columanar structure, shows excellent mechanical property.Such as have super
The low-alloy steel of thin column crystal, its tensile strength, elongation percentage and room temperature impact toughness are up to 1.84 GPa, 15 % and 226 respectively
J, its Toughness Ratio as-cast specimen improve 16 times（Y. Kimura, T. Inoue, F. Yin, K. Tsuzaki. Inverse
temperature dependence of toughness in an ultrafine grain-structure steel.
Science, 2008, 320: 1057-1060）.At present, ultra-fine columanar structure is mainly obtained by rolling and drawing technique,
Its forming complex process, production cost are also higher, and to some hardly possible processing especially brittle alloy material compatibilities
Difference.As a kind of means for controlling crystal orientation, directional solidification technique can set up the temperature of specific direction in solid phase and liquid phase
Gradient is spent, so that melt solidifies along the direction opposite with hot-fluid, once forms columanar structure.However, traditional orientation
The cooldown rate that solidification technology obtains is extremely limited, and the columanar structure of prepared sample is also thicker.Rapid Directional Solidification
Technology has had both the advantages of quick solidification and directional solidification, can obtain ultra-fine columanar structure.As conventional quick solidification skill
Art, melt-quenching method can obtain main shaft perpendicular to the tiny column crystal of the radial dimension of zone face under certain process conditions,
But the thickness of sample is usually no more than 0.5mm, it is seriously hindered to apply and develop.
High undercooling Rapid Directional Solidification can obtain very big degree of supercooling before forming core, effectively overcome melt-quenching method
Existing deficiency, sufficiently long sample can be grown（Li Junzheng, Huang Bin, Li Jianguo are based on Co-Ni-Ga ferromagnetic shape memories
The high undercooling directional solidification bar of alloy and preparation method thereof the patent No.s：CN201010292281.4, grant date：2011 01
The moon 05）.The technology is placed in heating and melting in silica crucible and obtains high undercooling melt after metal is coated with glass cleanser, then
Silica crucible bottom is excited to realize Rapid Directional Solidification with Ga-In-Sn liquid alloys.But due to being coated by glass cleanser
Molten metal lack heterogeneous nuclei in crucible bottom, this method is difficult to obtain thin column crystal；In addition, melted in the preparation process
Across silica crucible and glass cleanser between metal and Ga-In-Sn, the two is all the non-conductor of heat, is unfavorable for exciting soon
Fast directional solidification.
The content of the invention
The technical problems to be solved in the utility model is：It is difficult to obtain carefully for existing high undercooling Rapid Directional Solidification
Column crystal and the defects of excite difficulty, the utility model provides a kind of glass fluxing technique suspension high undercooling Rapid Directional Solidification dress
Put.Thin column crystal can be obtained by the utility model device, be also easy to realize the slewing growth of block sample, be produced into
This is low, simple to operate.
In order to solve the above problems, the technical scheme that the utility model is taken is：
The utility model provides a kind of glass fluxing technique suspension high undercooling Rapid Directional Solidification device, and the high undercooling is quickly fixed
Include closed furnace body to coagulation system（1）, closed furnace body（1）The interior glass tube provided with one end closing（2）, glass pepe gripper
（3）, ball-screw（4）, sensing heater（5）, heat-insulated formwork（6）And water cooled copper mould（7）；
The sensing heater（5）Top be provided with one end closing glass tube（2）, glass tube（2）Pass through glass pipe clamp
Holder（3）Control moves up and down, glass pepe gripper（3）By ball-screw（4）Drive；In sensing heater（5）Lower section set
There is heat-insulated formwork（6）, heat-insulated formwork（6）Bottom is provided with water cooled copper mould（7）；The heat-insulated formwork（6）And water cooled copper mould（7）Formed
Die cavity.
According to above-mentioned glass fluxing technique suspension high undercooling Rapid Directional Solidification device, the glass tube（2）For high borosilicate glass
Glass pipe；Glass tube（2）Built with alloy raw material.
According to above-mentioned glass fluxing technique suspension high undercooling Rapid Directional Solidification device, the high-boron-silicon glass pipe（2）It is outer
A diameter of 6~20mm, wall thickness are 0.5~3mm.
According to above-mentioned glass fluxing technique suspension high undercooling Rapid Directional Solidification device, the sensing heater（5）By copper pipe
Coiling forms, in cone.
According to above-mentioned glass fluxing technique suspension high undercooling Rapid Directional Solidification device, the sensing heater（5）Sensing
Coil turn is 3~6 circles, and conical cone angle is 60~150 °.
According to above-mentioned glass fluxing technique suspension high undercooling Rapid Directional Solidification device, the water cooled copper mould（7）It is disk-shaped.
Positive beneficial effect of the present utility model：
1st, compared with prior art, crucible is not used in the utility model device, it becomes possible to by alloy-coated in melting glass
High undercooling melt is obtained inside glass, and alloy melt directly can excite body to contact with copper mold, can not only utilize copper mold wall
The substrate of offer obtains thin column crystal, is also easy to realize the slewing growth of block sample, production cost is low, side simple to operate
Just.
2nd, by the utility model device high undercooling melt can be made to excite body to contact with copper mold, copper mold wall provides during contact
Substrate carry out forming core, be easily obtained thin column crystal.
3rd, the utility model device using molten glass viscosity is larger and the characteristics of alloy solution viscosity is small, pass through and close sense
Heater power source is answered alloy melt is quickly entered the die cavity that heat-insulated putamina and water cooled copper mould are formed under gravity, so as to real
Existing alloy melt is with exciting body directly to contact, high undercooling Rapid Directional Solidification is easy to excite.
4th, the utility model device realizes that glass fluxing technique suspension high undercooling is handled using taper sensing heater, at high undercooling
Manage device without using silica crucible, and in Rapid Directional Solidification excitation process without using costliness Ga-In-Sn liquid alloys,
Production cost is low, simple to operate.
Brief description of the drawings：
The structural representation of Fig. 1 the utility model glass fluxing technique suspension high undercooling Rapid Directional Solidification devices.
In Fig. 1：1 is closed furnace body, and 2 be the glass tube of one end closing, and 3 be glass pepe gripper, and 4 be ball-screw, and 5 are
Sensing heater, 6 be heat-insulated formwork, and 7 be water cooled copper mould.
Embodiment：
The utility model is expanded on further with reference to embodiments, but is not intended to limit content of the present utility model.
Embodiment 1：
Referring to accompanying drawing 1, the utility model glass fluxing technique suspension high undercooling Rapid Directional Solidification device, including closed furnace body
（1）, closed furnace body（1）The interior glass tube provided with one end closing（2）, glass pepe gripper（3）, ball-screw（4）, sensing heating
Device（5）, heat-insulated formwork（6）And water cooled copper mould（7）；
In closed furnace body（1）It is interior, sensing heater（5）Top be provided with one end closing glass tube（2）, glass tube（2）
Pass through glass pepe gripper（3）Control moves up and down, glass pepe gripper（3）By ball-screw（4）Drive；In sensing heater
（5）Lower section be provided with heat-insulated formwork（6）, heat-insulated formwork（6）Bottom is provided with water cooled copper mould（7）；The heat-insulated formwork（6）And water cooling
Copper mold（7）Form die cavity.
Embodiment 2：Substantially the same manner as Example 1, difference is：
The glass tube of one end closing（2）For high-boron-silicon glass pipe, glass tube（2）Built with alloy melt；High borosilicate
Glass tube（2）Overall diameter be 6mm, wall thickness 0.5mm；The sensing heater（5）Formed by copper pipe coiling, in cone；
Sensing heater（5）Number of inductive coil turns be 3 circles, conical cone angle is 60 DEG C；The water cooled copper mould（7）It is disk-shaped.
Embodiment 3：Substantially the same manner as Example 1, difference is：
The glass tube of one end closing（2）For high-boron-silicon glass pipe, glass tube（2）Built with alloy melt；High borosilicate
Glass tube（2）Overall diameter be 20mm, wall thickness 3mm；The sensing heater（5）Formed by copper pipe coiling, in cone；Sense
Answer heater（5）Number of inductive coil turns be 3 circles, conical cone angle is 60 DEG C；The water cooled copper mould（7）It is disk-shaped.
Embodiment 4：Substantially the same manner as Example 1, difference is：
The glass tube of one end closing（2）For high-boron-silicon glass pipe, glass tube（2）Built with alloy melt；High borosilicate
Glass tube（2）Overall diameter be 6mm, wall thickness 0.5mm；The sensing heater（5）Formed by copper pipe coiling, in cone；
Sensing heater（5）Number of inductive coil turns be 6 circles, conical cone angle is 150 DEG C；The water cooled copper mould（7）It is disk-shaped.
The operating process of the utility model glass fluxing technique suspension high undercooling Rapid Directional Solidification device is specially：
A, by closed furnace body（1）The glass tube of an internal lower end closed（2）It is placed in glass pepe gripper（3）On, glass tube
Clamper（3）By ball-screw（4）Drive；Glass tube（2）Built with Conventional alloys raw material, glass tube（2）Blind end is in sense
Answer heater（5）In interior axial location；By closed furnace body after each equipment installation（1）It is evacuated to 10-3Pa, it is then charged with argon gas extremely
5×104Pa；
B, sensing heater is started（5）Power supply, improve sensing heater（5）Electric current to 60~120A, glass tube（2）It is interior
Alloy raw material suspension melting, glass tube（2）The part contacted with alloy raw material gradually softens and purifies alloy melt；Continue to carry
High sensing heater（5）Electric current to 100~150A, alloy melt overheats under this current condition, is incubated 2~4min；
C, sensing heater is reduced after being incubated（5）Electric current to 60~120A, decline low-alloy melt in this current condition
Temperature 2~4min minutes；Sensing heater is improved after cooling again（5）Electric current to 100~150A, make glass tube
（2）Interior alloy melt carries out second and overheated, and 2~4min minutes are incubated under this current condition；
D, after second of insulation of step c, sensing heater is turned down（5）Electric current to 60~110A, obtain high undercooling alloy
Melt；
E, with 1mmmin during step b to step d cyclical superheatings-1Speed move up and down glass pepe gripper
（3）Position, alloy melt is in glass tube（2）Interior appropriate location；Finally close sensing heater（5）Power supply, glass
Pipe（2）Interior high undercooling alloy melt enters lower section by water cooled copper mould under gravity（7）With heat-insulated formwork（6）Formed
Die cavity, the quick unidirectional growth of block sample is realized, obtains disk shaped samples.
Claims (6)
- A kind of 1. glass fluxing technique suspension high undercooling Rapid Directional Solidification device, it is characterised in that：The high undercooling slewing is coagulated It is fixedly mounted with and puts including closed furnace body（1）, closed furnace body（1）The interior glass tube provided with one end closing（2）, glass pepe gripper（3）, rolling Ballscrew（4）, sensing heater（5）, heat-insulated formwork（6）And water cooled copper mould（7）；The sensing heater（5）Top be provided with one end closing glass tube（2）, glass tube（2）Pass through glass pepe gripper （3）Control moves up and down, glass pepe gripper（3）By ball-screw（4）Drive；In sensing heater（5）Lower section be provided with every Hot-die shell（6）, heat-insulated formwork（6）Bottom is provided with water cooled copper mould（7）；The heat-insulated formwork（6）And water cooled copper mould（7）Formation type Chamber.
- 2. glass fluxing technique suspension high undercooling Rapid Directional Solidification device according to claim 1, it is characterised in that：The glass Glass pipe（2）For high-boron-silicon glass pipe.
- 3. glass fluxing technique suspension high undercooling Rapid Directional Solidification device according to claim 2, it is characterised in that：The height Borosilicate glass tube（2）Overall diameter be 6~20mm, wall thickness is 0.5~3mm.
- 4. glass fluxing technique suspension high undercooling Rapid Directional Solidification device according to claim 1, it is characterised in that：The sense Answer heater（5）Formed by copper pipe coiling, in cone.
- 5. glass fluxing technique suspension high undercooling Rapid Directional Solidification device according to claim 4, it is characterised in that：The sense Answer heater（5）Number of inductive coil turns be 3~6 circles, conical cone angle is 60~150 °.
- 6. glass fluxing technique suspension high undercooling Rapid Directional Solidification device according to claim 1, it is characterised in that：The water Cold copper mold（7）It is disk-shaped.
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| CN201720455370.3U CN206689388U (en) | 2017-04-27 | 2017-04-27 | A kind of glass fluxing technique suspension high undercooling Rapid Directional Solidification device |
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| CN201720455370.3U CN206689388U (en) | 2017-04-27 | 2017-04-27 | A kind of glass fluxing technique suspension high undercooling Rapid Directional Solidification device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106903266A (en) * | 2017-04-27 | 2017-06-30 | 郑州大学 | A kind of glass fluxing technique suspension high undercooling Rapid Directional Solidification device and its clotting method |
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2017
- 2017-04-27 CN CN201720455370.3U patent/CN206689388U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106903266A (en) * | 2017-04-27 | 2017-06-30 | 郑州大学 | A kind of glass fluxing technique suspension high undercooling Rapid Directional Solidification device and its clotting method |
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| GR01 | Patent grant | ||
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Granted publication date: 20171201 Termination date: 20200427 |
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| CF01 | Termination of patent right due to non-payment of annual fee |