CN101934368A - Chilling disc for cooling, orienting and solidifying liquid metal - Google Patents
Chilling disc for cooling, orienting and solidifying liquid metal Download PDFInfo
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- CN101934368A CN101934368A CN 201010274040 CN201010274040A CN101934368A CN 101934368 A CN101934368 A CN 101934368A CN 201010274040 CN201010274040 CN 201010274040 CN 201010274040 A CN201010274040 A CN 201010274040A CN 101934368 A CN101934368 A CN 101934368A
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Abstract
The invention discloses a chilling disc for cooling, orienting and solidifying a liquid metal, which comprises a chilling disc body. The chilling disc for cooling, orienting and solidifying the liquid metal is characterized in that the chilling disc body is internally provided with an annular passage or a petal passage through which a liquid medium passes; and the chilling disc body is made of stainless steel or heat-resistant steel. The invention has uniform intensity of cooling, is in favor of the stable growth of the solidification front of a high-temperature alloy solid-liquid interface and the temperature equalization of a cooling medium around a mold.
Description
Technical field
The present invention relates to a kind of liquid metal cooling directional solidification Quench dish, is a kind of hydronic Quench dish of liquid medium that leads to specifically.
Technical background
Except alloying component, grain properties has determined the high temperature alloy performance, orientation and single crystal blade are owing to the horizontal crystal boundary of having eliminated perpendicular to stress axis, the crystal orientation is parallel with the stress direction that acts on blade, temperature resistant capability obviously improves, have better vertical mechanical performance, can in the adverse circumstances of high-temperature fuel gas, work long hours.
The preparation of orientation and single crystal blade is that the casting mold of bottom opening is fixed on the Quench dish, and the Quench dish has served as the bottom of casting mold.The metal that the moment that liquid metal pours into contacts with the Quench dish with the equiax crystal forming core, grow up, the immediate crystal grain of the direction of growth and direction of heat flow will be eliminated other crystal grain and occupy whole sample cross section gradually.At the main foundry goods thin layer of this process heat by having solidified, be transmitted on the Quench dish, the solid-liquid interface solidification front advances along the direction opposite with the hot-fluid conduction, finishes up to solidifying.
In rapid solidification method (HRS) technology, the Quench dish is to be made by the copper or the copper alloy of the logical cooling water in inside, the good heat conductivity of copper, and heat transfer rate is fast, and heat can be taken away by the very fast cooling water that is recycled.And in liquid metal cooling method (LMC) technology, because copper and copper alloy and liquid cooling medium tin or reactive aluminum are not suitable for doing the Quench dish.If the water flowing cooling because the temperature of liquid tin or aluminium is higher than the temperature of water, can cause evaporation of water, gasification, liquid tin or aluminium also can be set on the Quench dish.United States Patent (USP) (the patent No.: US20080257517A1) disclosed a kind of casting mold combination that is used for liquid metal cooling directional solidification furnace, relate generally to the Quench dish that immerses in liquid metal tin or the aluminium, the Quench dish adopts molybdenum or molybdenum alloy, tungsten or tungsten alloy, graphite or graphite alloy to make, and thermal diffusion coefficient is greater than 30 * 10 during 600K
-6m
2/ s is beneficial to the heat transmission, thickness 7.62cm～12.7cm.But the temperature fluctuation of Quench dish is bigger, and for example the casting mold holding temperature is 1550 ℃, and when the degree of depth in the Quench dish immersion liquid metal was 5.08cm, Quench dish temperature was 250 ℃～550 ℃ in the whole process, causes intensity of cooling inhomogeneous, and temperature fluctuation is bigger.
Summary of the invention
It is even to the purpose of this invention is to provide a kind of intensity of cooling, and temperature fluctuation is little, has inertia, the liquid cooled directional solidification Quench dish that the discord cooling medium reacts.
The technical scheme that adopts is:
A kind of liquid metal cooling directional solidification Quench dish, this Quench dish is made by stainless steel or heat resisting steel, it is characterized in that Quench dish inside offers circular passage or petal passage, can lead to the liquid medium cooling.
Pass through liquid medium in the circular passage of described Quench dish or the petal passage; Liquid medium is oil or water, liquid medium temperature is controlled at ± and 5 ℃.
The invention has the advantages that:
Intensity of cooling is even, is beneficial to high temperature alloy solid-liquid interface solidification front and steadily grows, and helps casting mold coolant temperature equilibrium on every side again.
Description of drawings
Fig. 1 is the liquid metal cooling device for directionally solidifying longitudinal section of the logical liquid medium of Quench dish.
Fig. 2 is Quench disc-annular shape channel cross-section figure.
Fig. 3 is the petal channel cross-section figure of Quench disk ring.
The specific embodiment
Embodiment
A kind of liquid metal cooling directional solidification Quench dish, comprise Quench disk body 1, it is characterized in that there are circular passage 13 that medium for liquid passes through or the petal passage 12 that passes through of medium for liquid in Quench disk body 1 inside, described Quench disk body 1 is made by stainless steel or heat resisting steel.
The use principle of liquid metal cooling directional solidification Quench dish of the present invention:
Described Quench disk body 1 is fixed on the ceramic-mould or casting mold combination 5 of bottom opening, as the bottom of casting mold, prevents the casting mold bleed-out.Most importantly this Quench disk body 1 can lead to the cooling of liquid medium conduction oil, and the liquid medium conduction oil enters Quench disk body 1 by the pull axle 2 of boring along the A direction, and flows out along the B direction.In the directional solidification process, the casting mold 5 that is heated the heater 4 (being arranged on toroidal membrane 6 tops) of holding furnace 3 and heater 7 (being arranged on the below of toroidal membrane 6) preheating receives from pouring high temperature alloy melt in its inner chamber into conventional method in the induction melting furnace (not shown), because the liquid medium in the Quench dish is taken away the heat that the high temperature alloy melt is transmitted to the Quench dish rapidly, the high temperature alloy melt moment that contacts with the Quench dish solidifies, and has promoted the competitive growth of forming core and crystal grain.Casting mold and Quench dish slowly enter from the hole of thermal baffle 8 in the liquid cooling medium tin liquor 9 with certain speed under the drive of pull axle 2 subsequently, and liquid cooling medium tin is held by rustless steel container 10, and can move up and down under the drive of lifting shaft 11.Under the common cooling effect of Quench dish and liquid tin, crystal grain is upwards grown up vertically, finishes until whole casting solidification.Known processes is that the casting mold of will pull out in the heat tracing stove is in the condition of high temperature (being higher than 1500 ℃), directly immerse in the tin liquor, cause the tin liquor local temperature to raise, though certain cooling effect has been played in the stirring of tin liquor, the time that reaches temperature equalization is long, and along with the continuous immersion of casting mold, more heat enters in the tin, cause tin liquor local temperature rise, cause the thermograde of solid-liquid interface solidification front to reduce, cause casting defect.And the liquid medium in the Quench dish can be taken away the heat in the tin around the casting mold rapidly, has kept near the uniformity of the tin liquor temperature of casting mold, is beneficial to the stable growth of crystal.
Claims (2)
1. liquid metal cooling directional solidification Quench dish comprises Quench disk body (1), it is characterized in that described Quench disk body (1) inside offers circular passage (13) or petal passage (12) that medium for liquid passes through.
2. a kind of liquid metal cooling directional solidification Quench dish according to claim 1 is characterized in that described Quench disk body (1) made by stainless steel or heat resisting steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010274040 CN101934368A (en) | 2010-09-07 | 2010-09-07 | Chilling disc for cooling, orienting and solidifying liquid metal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010274040 CN101934368A (en) | 2010-09-07 | 2010-09-07 | Chilling disc for cooling, orienting and solidifying liquid metal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101934368A true CN101934368A (en) | 2011-01-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010274040 Pending CN101934368A (en) | 2010-09-07 | 2010-09-07 | Chilling disc for cooling, orienting and solidifying liquid metal |
Country Status (1)
| Country | Link |
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| CN (1) | CN101934368A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103192063A (en) * | 2013-04-01 | 2013-07-10 | 东方电气集团东方汽轮机有限公司 | Casting mold for producing high-temperature alloy single crystal blades and directional solidification device thereof |
| CN103406522A (en) * | 2013-07-18 | 2013-11-27 | 吴江市黎里建兴铸件厂 | Die cooler |
| CN107649665A (en) * | 2017-09-26 | 2018-02-02 | 吉林大学 | The technique that T91 heat resisting steel is prepared by the method for directional solidification |
| CN111590056A (en) * | 2020-05-22 | 2020-08-28 | 东方电气集团东方汽轮机有限公司 | Casting structure and casting method for directional solidification of high-temperature alloy |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1309003A (en) * | 2000-02-16 | 2001-08-22 | 宋修民 | Four-point increasing and changing method for aluminum hub die-casting process |
| CN2516557Y (en) * | 2001-06-01 | 2002-10-16 | 银川友合石化设备技术研究所 | Chilling ring of gasification furnace |
| CN101550360A (en) * | 2009-05-19 | 2009-10-07 | 水煤浆气化及煤化工国家工程研究中心 | Quenching ring for gasification furnace |
| CN201386082Y (en) * | 2009-03-26 | 2010-01-20 | 山东华鲁恒升化工股份有限公司 | Novel gasifier quenching ring |
| CN201500776U (en) * | 2009-09-25 | 2010-06-09 | 上海大学 | High-temperature alloy directional coagulation device with heat pipe cooling system |
-
2010
- 2010-09-07 CN CN 201010274040 patent/CN101934368A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1309003A (en) * | 2000-02-16 | 2001-08-22 | 宋修民 | Four-point increasing and changing method for aluminum hub die-casting process |
| CN2516557Y (en) * | 2001-06-01 | 2002-10-16 | 银川友合石化设备技术研究所 | Chilling ring of gasification furnace |
| CN201386082Y (en) * | 2009-03-26 | 2010-01-20 | 山东华鲁恒升化工股份有限公司 | Novel gasifier quenching ring |
| CN101550360A (en) * | 2009-05-19 | 2009-10-07 | 水煤浆气化及煤化工国家工程研究中心 | Quenching ring for gasification furnace |
| CN201500776U (en) * | 2009-09-25 | 2010-06-09 | 上海大学 | High-temperature alloy directional coagulation device with heat pipe cooling system |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103192063A (en) * | 2013-04-01 | 2013-07-10 | 东方电气集团东方汽轮机有限公司 | Casting mold for producing high-temperature alloy single crystal blades and directional solidification device thereof |
| CN103192063B (en) * | 2013-04-01 | 2015-03-11 | 东方电气集团东方汽轮机有限公司 | Casting mold for producing high-temperature alloy single crystal blades and directional solidification device thereof |
| CN103406522A (en) * | 2013-07-18 | 2013-11-27 | 吴江市黎里建兴铸件厂 | Die cooler |
| CN103406522B (en) * | 2013-07-18 | 2016-03-30 | 吴江市黎里建兴铸件厂 | A kind of die cooler |
| CN107649665A (en) * | 2017-09-26 | 2018-02-02 | 吉林大学 | The technique that T91 heat resisting steel is prepared by the method for directional solidification |
| CN111590056A (en) * | 2020-05-22 | 2020-08-28 | 东方电气集团东方汽轮机有限公司 | Casting structure and casting method for directional solidification of high-temperature alloy |
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Application publication date: 20110105 |