CN106862537A - The manufacture craft of gooseneck electroslag casting process and crystallizer - Google Patents
The manufacture craft of gooseneck electroslag casting process and crystallizer Download PDFInfo
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- CN106862537A CN106862537A CN201710090445.7A CN201710090445A CN106862537A CN 106862537 A CN106862537 A CN 106862537A CN 201710090445 A CN201710090445 A CN 201710090445A CN 106862537 A CN106862537 A CN 106862537A
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- gooseneck
- crystallizer
- metal electrode
- ingot plate
- shield
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D23/00—Casting processes not provided for in groups B22D1/00 - B22D21/00
- B22D23/06—Melting-down metal, e.g. metal particles, in the mould
- B22D23/10—Electroslag casting
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacture And Refinement Of Metals (AREA)
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Abstract
The invention discloses a kind of gooseneck electroslag casting process and the manufacture craft of crystallizer, including crystallizer making；Elastic resistant to elevated temperatures material is provided between crystallizer and shield ingot plate, the loose contact problem for occurring is shunk for buffering steel ingot；Multi-group electrode bundlees melting etc. together.The advantage of the invention is that：Disposable output gooseneck product in irregular shape, improves gooseneck quality, and the gooseneck dense structure of electroslag smelting casting, field trash is few, and S, P content are low, does not have sand holes, stomata, more than extension life of product twice.
Description
Technical field
The present invention relates to a kind of electroslag smelting casting of gooseneck, specifically a kind of gooseneck electroslag casting process and gooseneck founding
With crystallizer, belong to the founding field of gooseneck.
Background technology
Aluminium alloy or magnesium alloy profiles high pressure extrusion mould, are commonly called as gooseneck, be it is a kind of worked in hot environment it is resistance to
Fatigue at high temperature, the good metallic article of red hardness.
Electroslag smelting casting：A kind of steel-making mode, belongs to double refining.Main flow is charged metal electrode insertion crystallizer
It is interior, there is slag in crystallizer, electric current makes slag exothermic melting by slag, after slag temperature is higher than metal electrode fusing point, gold
Category electrode start slowly to melt, formed drop, drop by drop drip, drop pass through slag, be set in crystalliser feet, with when
Between elapse, solidification part it is increasing, as the steel products that shape differs.
Metal electrode：Or the steel product of round steel or square steel or band steel or other shapes.
Crystallizer：A kind of mould, circulating water, molten steel coagulation forming in mould.
Slag：By CaF2AL2O3Deng the granular mixture of composition, become liquid after reaching uniform temperature, there is certain
Resistance value, can be conductive, and heat can be produced by electric current.
Shield ingot plate：General steel plate, consumable accessory, for protecting bottom water tank.Arc light scaling loss is easily produced when high current is turned on
Bottom water tank, so placing shield ingot plate transition on the water tank of bottom, such scaling loss is shield ingot plate.
Bottom water tank：For crystallizer seals base opening, prevent slag and molten steel from leaking outside, while being the only way which must be passed of current flowing.
Electroslag smelting casting shaped piece is a complex process, it is desirable to steelmaking process very high.Gooseneck is shaped piece, outside upper and lower side
Wide size disparity is big, allows all sites all to fill up and well-crystallized needs special process.Traditional manufacture craft pouring molten steel into
Type.The defect that this technique is present:Product tissue looseness, field trash is more, and S, P content are high, stomata easily occurs, sand holes, loose etc.
Casting flaw, gooseneck service life is short, changes frequent.
The ESR Process of gooseneck, crystallizer big lower mouth suitable for reading is small（Must assure that gooseneck radial dimension than larger portion
Point above, molten steel can be filled to each corner, ingot casting could forming, without shrinkage cavity, be mingled with, stomata etc.）, so occur
One problem, after molten steel enters the solidification of large scale position, steel ingot is up big and down small, and steel ingot shrinks and shortens in cooling procedure,
Bottom occurs loose contact, and then conductive bad arcing occurs, scaling loss shield ingot plate, occurs open circuit when serious, and melting terminates.
The content of the invention
In order to solve the above problems, the present invention devises the manufacture craft of a kind of gooseneck electroslag casting process and crystallizer,
Disposable output gooseneck product in irregular shape, improves gooseneck quality, the gooseneck dense structure of electroslag smelting casting, field trash
Few, S, P content are low, do not have sand holes, stomata, more than extension life of product twice.
The technical scheme is that：
Gooseneck electroslag casting process, comprises the following steps：
（1）Gooseneck first according to different size makes corresponding crystallizer, the crystallizer internal cavity profile and gooseneck outline
Keep approximate, and reserved allowance for shrinkage；
（2）Weight size is segmented according to gooseneck size each several part to make metal electrode, the big part of gooseneck size, metal electrode
Radial dimension also accordingly increases, it is ensured that each position shaping is full after molten steel solidification；Metal electrode radial dimension size variation is logical
Excessive root metal electrode binding combination is realized, the group number of metal electrode is increased or decreased according to size difference to realize；
（3）Shield ingot plate is placed on the water tank of bottom, shield ingot plate contour dimension is adapted with mouth contour dimension under crystallizer；
（4）Crystallizer is put on shield ingot plate, is separated with elastic high-temperature insulation material such as asbestos cord etc. between crystallizer and shield ingot plate；Bullet
Property high-temperature insulation material one of effect be to prevent crystallizer conductive, two be compensation when being shunk as steel ingot, ingot solidification
Overlying dimension is big afterwards, below size it is small, steel ingot is stuck in crystallizer, and temperature reduction after-contraction is highly reduced, and so makes crystallizer
Very big active force is generated between shield ingot plate；The consequence produced due to contraction is loose contact between shield ingot plate and bottom water tank
Scaling loss, steel ingot is stuck in crystallizer, and resilient material compensation contraction solves problem above；
（5）Slag is stacked into crystallizer on shield ingot plate, and metal electrode touches slag current lead-through, slag heating metal electrode
Fusing, the molten steel of fusing is deposited on shield ingot plate and turns into solid-state steel ingot.
（6）Current Voltage sets stage by stage according to actual conditions, it is ensured that quality and shaping.
Wherein, the crystallizer includes epimere, stage casing and hypomere, and epimere gabarit radial dimension is larger, hypomere contour dimension
Elongated, inner side is copper coin inner sleeve, and outside is carbon steel overcoat, and the carbon steel overcoat and copper coin inner sleeve are by semicircular two parts structure
Into, end is equipped with and splits around adpting flange, between by fastening bolt connect.
A kind of manufacture craft of gooseneck remelting crystallizer, is provided with elasticity resistant to elevated temperatures between the crystallizer and shield ingot plate
Material asbestos cord etc., the loose contact problem for occurring is shunk for buffering steel ingot, solves the problems, such as scaling loss bottom water tank.
The demoulding of profiled piece is to compare stubborn problem, and solution is exactly to make detachable crystallizer.Make crystallization
The difficulty of device is increased：Need the round and smooth docking of each several part, sealing, the cooling of each several part is all problem, it more difficult to be each several part
Shrinkage ratio calculating, make crystallizer inside dimension surplus.
Crystallizer is similar to barreled object, there is inside and outside two-layer.Internal layer is made by copper coin, and outer layer is made by carbon steel or stainless steel,
Inside and outside two interlayer has circulating water.
Because gooseneck product is shaped piece, crystallizer internal cavity is also required to be made by gooseneck shaped, and manufacture difficulty is very big.
We take branch and divide the method that making is combined into one to solve.Always it is divided into three sections of upper, middle and lower, each section by left and right two
It is grouped into, detachable, with bolt combination together, crystallizer internal cavity shape is just out.Left and right two parts combination, opens spiral shell
Bolt, steel ingot is easy for taking out.
The advantage of the invention is that：Disposable output gooseneck product in irregular shape, improves gooseneck quality, and electroslag melts
The gooseneck dense structure of casting, field trash is few, and S, P content are low, does not have sand holes, stomata, more than extension life of product twice.
The invention will be further described with implementation below in conjunction with the accompanying drawings.
Brief description of the drawings
Fig. 1 is embodiment of the present invention fusion process schematic diagram；
Figure 21 is the structural representation of embodiment of the present invention crystallizer；
Figure 22 is the A-A faces sectional view of embodiment of the present invention Figure 21；
Fig. 3 is the type shape schematic diagram of embodiment of the present invention casting product.
Specific embodiment
The preferred embodiments of the present invention are illustrated below, it will be appreciated that preferred embodiment described herein is only used
In the description and interpretation present invention, it is not intended to limit the present invention.
Embodiment 1
Gooseneck electroslag casting process, completing electroslag smelting casting needs six parts to constitute：Large power supply, crystallizer 1, metal electrode
（Consutrode）, metal bath 8, slag bath（Slag）2nd, ingot plate 3, bottom water tank 5, current loop is protected：Power supply-metal electrode-slag-
Shield ingot plate-bottom water tank-power supply；Comprise the following steps：
（1）Gooseneck first according to different size makes corresponding crystallizer, the crystallizer internal cavity profile and gooseneck outline
Keep approximate, and reserved allowance for shrinkage；
Wherein, the crystallizer 1 includes epimere 11, stage casing 12 and hypomere 13, and epimere gabarit radial dimension is larger, hypomere gabarit chi
Very little elongated, inner side is provided with steel plate inner sleeve 14, and outside is provided with carbon steel overcoat 19, and the carbon steel overcoat is by semicircular two parts structure
Into, end is equipped with and splits around adpting flange 17, between connected by fastening bolt 18；The upper end of the epimere is provided with method
Blue 15, the bottom of the hypomere is provided with bottom flange 16；
（2）Weight size is segmented according to gooseneck size each several part to make metal electrode（I.e. No. 1 consutrode, No. 2 No. 3 consumables
Electrode）, the big part of gooseneck size, metal electrode radial dimension also accordingly increases, it is ensured that each position shaping is full after molten steel solidification
It is full；Metal electrode radial dimension size variation is realized by many metal electrode binding combinations, according to size difference
The group number of metal electrode is increased or decreased to realize（See that Fig. 1 illustrates）；
（3）Shield ingot plate is placed on the water tank of bottom, shield ingot plate contour dimension is adapted with mouth contour dimension under crystallizer；
（4）Put crystallizer on shield ingot plate, between crystallizer 1 and shield ingot plate 3 with elastic high-temperature insulation material 4 such as asbestos cord every
Open；One of effect of elastic high-temperature insulation material is to prevent crystallizer conductive, two be compensation, steel ingot when being shunk as steel ingot
Overlying dimension is big after solidification, below size it is small, steel ingot is stuck in crystallizer, and temperature reduction after-contraction is highly reduced, and so makes knot
Very big active force is generated between brilliant device and shield ingot plate；The consequence produced due to contraction is that shield ingot plate is contacted between the water tank of bottom
Bad scaling loss, steel ingot is stuck in crystallizer, and resilient material compensation contraction solves problem above；
（5）Slag is stacked into crystallizer on shield ingot plate, and metal electrode touches slag current lead-through, slag heating metal electrode
Fusing, the molten steel of fusing is deposited on shield ingot plate and turns into solid-state steel ingot.
The present invention is mainly reflected in:The mode of production, production process, production technology and gooseneck crystallizer make.
Key of the invention is the formulation of technological process, the making of crystallizer.
A kind of manufacture craft of gooseneck remelting crystallizer, is provided with elasticity resistant to elevated temperatures between the crystallizer and shield ingot plate
Material such as asbestos cord etc., the loose contact problem for occurring is shunk for buffering steel ingot, solves the problems, such as scaling loss bottom water tank.
Claims (5)
1. gooseneck electroslag casting process, it is characterised in that comprise the following steps：
（1）Gooseneck first according to different size makes corresponding crystallizer, the crystallizer internal cavity profile and gooseneck outline
Keep approximate, and reserved allowance for shrinkage；
（2）Weight size is segmented according to gooseneck size each several part to make metal electrode, the big part of gooseneck size, metal electrode
Radial dimension also accordingly increases, it is ensured that each position shaping is full after molten steel solidification；Metal electrode radial dimension size variation is logical
Excessive root metal electrode binding combination is realized, the group number of metal electrode is increased or decreased according to size difference to realize；
（3）Shield ingot plate is placed on the water tank of bottom, shield ingot plate contour dimension is adapted with mouth contour dimension under crystallizer；
（4）Crystallizer is put on shield ingot plate, is separated with elastic high-temperature insulation material between crystallizer and shield ingot plate；
（5）Slag is stacked into crystallizer on shield ingot plate, and metal electrode touches slag current lead-through, slag heating metal electrode
Fusing, the molten steel of fusing is deposited on shield ingot plate and turns into solid-state steel ingot.
2. gooseneck electroslag casting process according to claim 1, it is characterised in that：The crystallizer and the shield ingot plate it
Between be provided with elastic resistant to elevated temperatures material.
3. gooseneck electroslag casting process according to claim 1, it is characterised in that：The step（2）It is middle to bundle different numbers
Three sections of the metal electrode correspondence gooseneck upper, middle and lower of amount, uses different technological parameters.
4. gooseneck electroslag casting process according to claim 3, it is characterised in that：The step（2）The big mouth of crystallizer exists
On, osculum realizes that metal electrode bundlees the change of quantity under.
5. a kind of manufacture craft of gooseneck remelting crystallizer, it is characterised in that：Wherein, the crystallizer includes epimere, stage casing
And hypomere, inner side is provided with copper coin inner sleeve, and outside is provided with carbon steel overcoat, and the carbon steel overcoat and copper coin inner sleeve are by semicircular two
Point constitute, end is equipped with and splits around adpting flange, between connected by fastening bolt；The upper end of the epimere is provided with method
Orchid, the bottom of the hypomere is provided with bottom flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710090445.7A CN106862537B (en) | 2017-02-20 | 2017-02-20 | Goose neck electroslag smelting casting process and crystallizer manufacturing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710090445.7A CN106862537B (en) | 2017-02-20 | 2017-02-20 | Goose neck electroslag smelting casting process and crystallizer manufacturing process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106862537A true CN106862537A (en) | 2017-06-20 |
| CN106862537B CN106862537B (en) | 2020-03-27 |
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| CN201710090445.7A Expired - Fee Related CN106862537B (en) | 2017-02-20 | 2017-02-20 | Goose neck electroslag smelting casting process and crystallizer manufacturing process |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1535180A (en) * | 1976-02-20 | 1978-12-06 | Ass Elect Ind | Electroslag apparatus |
| CN2213593Y (en) * | 1994-12-28 | 1995-11-29 | 机械工业部沈阳铸造研究所 | Founding device of thin-wall variable camber blade slab electroslag |
| CN102615272A (en) * | 2011-01-26 | 2012-08-01 | 沈阳铸造研究所 | Crystallizer for MW (megawatt)-scale wind power torsion shaft electroslag casting |
| CN102728821A (en) * | 2011-04-14 | 2012-10-17 | 沈阳铸造研究所 | Process method for electroslag smelting casting ship lift rack |
| CN103409641A (en) * | 2013-07-16 | 2013-11-27 | 辽宁科技大学 | Plugging method for bottom water tank and crystallizer during stripping electroslag re-melting |
| CN204474735U (en) * | 2015-03-07 | 2015-07-15 | 浙江正达模具有限公司 | A kind of anti-sparking crystallizer |
-
2017
- 2017-02-20 CN CN201710090445.7A patent/CN106862537B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1535180A (en) * | 1976-02-20 | 1978-12-06 | Ass Elect Ind | Electroslag apparatus |
| CN2213593Y (en) * | 1994-12-28 | 1995-11-29 | 机械工业部沈阳铸造研究所 | Founding device of thin-wall variable camber blade slab electroslag |
| CN102615272A (en) * | 2011-01-26 | 2012-08-01 | 沈阳铸造研究所 | Crystallizer for MW (megawatt)-scale wind power torsion shaft electroslag casting |
| CN102728821A (en) * | 2011-04-14 | 2012-10-17 | 沈阳铸造研究所 | Process method for electroslag smelting casting ship lift rack |
| CN103409641A (en) * | 2013-07-16 | 2013-11-27 | 辽宁科技大学 | Plugging method for bottom water tank and crystallizer during stripping electroslag re-melting |
| CN204474735U (en) * | 2015-03-07 | 2015-07-15 | 浙江正达模具有限公司 | A kind of anti-sparking crystallizer |
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| CN106862537B (en) | 2020-03-27 |
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