CN102407320A - Method for casting zirconium plate blank in vacuum - Google Patents
Method for casting zirconium plate blank in vacuum Download PDFInfo
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- CN102407320A CN102407320A CN201010260541XA CN201010260541A CN102407320A CN 102407320 A CN102407320 A CN 102407320A CN 201010260541X A CN201010260541X A CN 201010260541XA CN 201010260541 A CN201010260541 A CN 201010260541A CN 102407320 A CN102407320 A CN 102407320A
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- zirconium
- electrode
- crucible
- mould
- casting
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Abstract
The invention discloses a method for producing a zirconium plate blank, comprising the following processes: A, producing a cylinder-shaped zirconium electrode by using zirconium sponge; B, placing the cylinder-shaped zirconium electrode into a vacuum self-consuming skull furnace cavity; C, fixedly arranging a mould for casting the zirconium plate blank on a mould base which is located in the furnace cavity and can rotate at high speed and enabling a pouring gate of the mould to correspond to a liquid outlet of a crucible arranged in the furnace cavity and used for holding liquid; D, sealing the furnace cavity and controlling the vacuum degree in the furnace cavity to be less than or equal to 0.3pa; powering on, enabling the zirconium electrode and a bottom mat of the crucible to arc, enabling the melting current between the zirconium electrode and the bottom mat of the crucible to be up to 16-22KA and the melting voltage to be up to 34-40V, and melting the zirconium electrode to form liquid to be accumulated in the crucible; E, enabling the mould base to drive the mould to rotate at high speed, and meanwhile, injecting the liquid in the crucible to the cavity of the mould to centrifugally cast; and F, naturally cooling the cast zirconium plate blank together with the mould, and solidifying and molding the zirconium plate blank.
Description
Technical field
The present invention relates to utilize the method for vacuum consumable casting zirconium slab, especially belong to nonferrous materials and manufacture the field.
Background technology
Zirconium has the decay resistance more excellent than stainless steel, nickel-base alloy, titanium, and mechanical property and processing performance also are suitable for making container and heat exchanger very much.But, use less in the past owing to cost an arm and a leg.But along with the development of domestic chemical industry, the equipment of many deep-etchings is adopting the zirconium material more and more, improves equipment life and reliability greatly, obtains better economic benefit.At present, also day by day ripe to Equipment Design, manufacturing and inspection technology from the production of zirconium material, for the extensive use of zirconium container provides the foundation.
Zirconium is one of important strategic metal in the rare metal, is silvery white metal.Have characteristics such as anti-corrosion, heat-resisting, that intensity is high, plasticity is good, be widely used in steel-making, electroplated, make industrial departments such as alkali, electrovacuum, oil, chemical industry.Domestic in recent years main zirconium plate demand relies on U.S. Hua Chang company, has part producer to produce the zirconium plate in trial-production at present, the traditional handicraft of-milled sheet that the production of zirconium plate is mainly followed: ingot casting--forging slab--.Must be through twice above melting.Finished ingot is forged into slab again through after the peeling, and is rolling after the peeling once more, and twice peeling wherein arranged, and it is about 12～15% that loss amounts to, and greatly reduces lumber recovery.Improve lumber recovery, will reduce the peeling amount in the process, improve the lumber recovery of slab.How reducing the peeling amount is the key that improves lumber recovery.
Summary of the invention
The present invention seeks to propose a kind of method of producing casting zirconium slab, especially a kind of with short production cycle, low cost of manufacture, the method for the block that utilization rate of raw materials is high.
Technical scheme of the present invention is: a kind of method of producing casting zirconium slab comprises following process: A, processes the bar shape zirconium electrode with sponge zirconium; B, the column zirconium electrode is inserted in the vacuum consumable scull furnace chamber; C, the mould that will cast the zirconium slab are fixedly installed on the die body base that is positioned at furnace chamber and can rotates at a high speed, and make its casting gate Sheng liquid interior with being arranged on this furnace chamber corresponding with the liquid flowing outlet of crucible; D, sealing furnace chamber, and make vacuum≤0.3pa in the furnace chamber; Energized makes the zirconium electrode and the starting the arc of crucible heelpiece, and makes between the two that the melting electric current reaches 16～22KA, melting voltage reaches 34～40V, makes zirconium electrode be fused into liquid, and amasss in crucible.E, make the die body base drive the mold high speed rotation, simultaneously the liquid in the crucible is injected spun casting in this mold cavity, the spun casting process was accomplished in no more than 5 seconds.F, the zirconium slab after will casting cool off with mould naturally, make it coagulation forming.
Said mold cavity is tabular mold cavity, and volume can receive certain limitation certainly.
Compared with present technology have after the present invention realizes with short production cycle, low cost of manufacture, utilization rate of raw materials advantages of higher.Sponge zirconium is processed the one-time electrode vacuum consumable smelting become second electrode; In vacuum consumable scull furnace chamber, melt second electrode then, and the zirconium liquation is cast in the casting mould chamber that is positioned at furnace chamber and rotates at a high speed; The rapid shaping casting can guarantee the even of slab tissue, good quality.The present invention need not be with ingot through after the peeling, forge into the loss of slab again.
The specific embodiment
Produce the method for zirconium slab, it is characterized in that it comprises following process: A, processes zirconium electrode with zirconium ingot; Become cylindric ingot casting (second electrode) through vacuum consumable smelting after promptly processing one-time electrode with sponge zirconium; B, zirconium electrode is inserted in the vacuum consumable scull furnace chamber, and be fixedly connected and be positioned on the electrode dop of this furnace chamber, make it to form the extreme of an electrode; C, will cast described mould and be fixedly installed on and be positioned on the furnace chamber and the die body base that can rotate at a high speed, and make the casting gate of the mould top Sheng liquid interior corresponding with the liquid flowing outlet of crucible with being arranged on this furnace chamber; D, sealing furnace chamber, and make vacuum≤0.3pa in the furnace chamber, energized makes the zirconium electrode and the starting the arc of crucible heelpiece afterwards, and makes between the two that the melting electric current reaches 16～22KA, melting voltage reaches 34～40V, makes zirconium electrode be fused into liquid, and amasss in crucible.E, make the die body base drive the mold high speed rotation, rotating speed is not less than per minute 300 to be changeed, and rotating speed especially per minute 500-1000 changes, and simultaneously the liquid in the crucible is injected in this mold cavity, and this spun casting process was accomplished in the time in no more than 5 seconds.F, the zirconium slab after will casting cool off with mould naturally, make it coagulation forming.Foundry goods is taken out in G, die sinking, promptly gets zirconium slab finished product.Mold cavity of the present invention is tabular mold cavity, and moulding is tabular, and to be prepared into composition even for the electrolysis ingot casting like this, good tabular of proterties.
Claims (4)
1. a method of producing the zirconium slab is characterized in that comprising following process: A, processes the bar shape zirconium electrode with sponge zirconium; B, the column zirconium electrode is inserted in the vacuum consumable scull furnace chamber; C, the mould that will cast the zirconium slab are fixedly installed on the die body base that is positioned at furnace chamber and can rotates at a high speed, and make its casting gate Sheng liquid interior with being arranged on this furnace chamber corresponding with the liquid flowing outlet of crucible; D, sealing furnace chamber, and make vacuum≤0.3pa in the furnace chamber; Energized makes the zirconium electrode and the starting the arc of crucible heelpiece, and makes between the two that the melting electric current reaches 16～22KA, melting voltage reaches 34～40V, makes zirconium electrode be fused into liquid, and amasss in crucible; E, make the die body base drive the mold high speed rotation, simultaneously the liquid in the crucible is injected spun casting in this mold cavity; F, the zirconium slab after will casting cool off with mould naturally, make it coagulation forming.
2. the method for production zirconium slab according to claim 1 is characterized in that making the spun casting process in no more than 5 seconds, to accomplish.
3. the method for production zirconium slab according to claim 1 is characterized in that with the method that zirconium ingot is processed zirconium electrode it being to become cylindric ingot casting through vacuum consumable smelting after processing one-time electrode with sponge zirconium.
4. the method for production zirconium slab according to claim 1 is characterized in that the rotating speed of mold high speed rotation changes for per minute 500-1000.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010260541XA CN102407320A (en) | 2010-08-23 | 2010-08-23 | Method for casting zirconium plate blank in vacuum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010260541XA CN102407320A (en) | 2010-08-23 | 2010-08-23 | Method for casting zirconium plate blank in vacuum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102407320A true CN102407320A (en) | 2012-04-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010260541XA Pending CN102407320A (en) | 2010-08-23 | 2010-08-23 | Method for casting zirconium plate blank in vacuum |
Country Status (1)
| Country | Link |
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| CN (1) | CN102407320A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB720613A (en) * | 1952-05-30 | 1954-12-22 | Ici Ltd | Improvements in or relating to the melting and casting of high melting point metals or alloys |
| CN1236819A (en) * | 1999-04-22 | 1999-12-01 | 孙宏勇 | Technology for producing titanium slabs |
| CN101230423A (en) * | 2007-01-24 | 2008-07-30 | 南京宝泰特种材料有限公司 | Method for manufacturing high-titanium ferrotitanium |
| CN101597705A (en) * | 2009-05-26 | 2009-12-09 | 宝鸡钛业股份有限公司 | The production method of the above big specification zirconium ingot of a kind of Ф 600mm |
| CN101624668A (en) * | 2009-08-05 | 2010-01-13 | 浙江民泰钛合金有限公司 | Beta-titanium alloy with low cost and easy production and manufacture method thereof |
-
2010
- 2010-08-23 CN CN201010260541XA patent/CN102407320A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB720613A (en) * | 1952-05-30 | 1954-12-22 | Ici Ltd | Improvements in or relating to the melting and casting of high melting point metals or alloys |
| CN1236819A (en) * | 1999-04-22 | 1999-12-01 | 孙宏勇 | Technology for producing titanium slabs |
| CN101230423A (en) * | 2007-01-24 | 2008-07-30 | 南京宝泰特种材料有限公司 | Method for manufacturing high-titanium ferrotitanium |
| CN101597705A (en) * | 2009-05-26 | 2009-12-09 | 宝鸡钛业股份有限公司 | The production method of the above big specification zirconium ingot of a kind of Ф 600mm |
| CN101624668A (en) * | 2009-08-05 | 2010-01-13 | 浙江民泰钛合金有限公司 | Beta-titanium alloy with low cost and easy production and manufacture method thereof |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Application publication date: 20120411 |