CN109014085A - A kind of pouring procedure of titanium alloy steel ingot - Google Patents
A kind of pouring procedure of titanium alloy steel ingot Download PDFInfo
- Publication number
- CN109014085A CN109014085A CN201811056221.5A CN201811056221A CN109014085A CN 109014085 A CN109014085 A CN 109014085A CN 201811056221 A CN201811056221 A CN 201811056221A CN 109014085 A CN109014085 A CN 109014085A
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- China
- Prior art keywords
- electroslag
- steel ingot
- insulated fireproof
- punching block
- fireproof mud
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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
- B22D7/00—Casting ingots, e.g. from ferrous metals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/02—Use of electric or magnetic effects
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/04—Influencing the temperature of the metal, e.g. by heating or cooling the mould
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a kind of pouring procedures of titanium alloy steel ingot, this method includes preparing mould material insulated fireproof mud collar by adding at the top of existing punching block, there are two non-touching metallic conduction components for setting on insulated fireproof mud collar inner wall, the bottom of punching block is provided with electroslag layer, in the casting process of bet method, electroslag floats, when electroslag enters insulated fireproof mud collar, after electroslag and metal lead component contact, power-supply system is connected, electroslag is due to self-resistance value, it generates heat and appropriate concurrent heating and insulation effect is played to its underpart molten steel, eliminate that steel ingot upper layer easily formed scabs, pipe, shrinkage cavity, crackle, it is loose, the defect of segregation etc., improve ingot quality.
Description
Technical field
The present invention relates to metallurgical technology fields more particularly to a kind of titaniferous that can be improved to close steel ingot material rate
Pouring procedure.
Background technique
Steel alloy smelting technique is along the direction improved productivity, simplify technique, reduction production cost and raising steel quality
Development, characteristic is mainly different depending on the application, in the smelting process of ordinary steel, microelement is added, to improve steel
Function.Due to the addition of titanium elements, so that the viscosity of molten steel is improved mobility reduces titaniferous steel alloy, cannot directly pass through Continuous Casting Square
Bar and slab is made in formula, can only be by first ingot casting, then carries out post-processing and prepare bar and slab.And it is infused during ingot casting
Speed, casting temperature control system are improper, and the ingot cast can be made to have the scabbing of surface of steel ingot, pipe and a longitudinal and transverse crackle, internal Residual hole,
Rimhole, loose and segregation etc..These defects reduce the following process of steel ingot with material rate, cause the original of such case
Cause, according to production practices situation analysis, in the casting process of bet method, molten steel rises from lower to upper in punching block, the steel on upper layer
Liquid rapid heat dissipation causes with reasons such as air contact time length, and is concentrated mainly on the top of steel ingot, in following process, steel ingot
Top have cannot efficiently using for 8-12%, cause the waste of resource.
Summary of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of pouring procedures of titanium alloy steel ingot, with solution
The certainly low problem of titaniferous alloy steel ingot preparation process chinese raw materials utilization rate in the prior art.
The present invention provides a kind of pouring procedure of titanium alloy steel ingot, method includes the following steps:
Step 1 prepares mould material
Including electroslag, punching block, insulated fireproof mud collar, metallic conduction component and external power supply, the top of the punching block is arranged
There is the insulated fireproof mud collar, and the internal diameter of the punching block is identical as the internal diameter of the insulated fireproof mud collar, and the two is coaxially divided
Cloth；There are two the non-touching metallic conduction components for setting on the insulated fireproof mud collar inner wall；The external power supply
Positive and negative anodes are connect with two metallic conduction components respectively, punching block Bottom ground；
The electroslag (being commonly called as covering slag) is put into the punching block bottom by step 2, as protective layer；
Step 3, using bet method pouring technology, the electroslag density be less than molten steel, float on molten steel during casting
Top rises with molten steel rising and plays anti-oxidation and sundries osmosis；
Step 4, when the electroslag floats up to concordant with upper edge hole in the insulated fireproof mud collar, stop pouring for molten steel
Note, at this point, the electroslag and the metallic conduction component contact, the external power supply forms loop, and the electroslag is with regard to suitable one
The heat of a resistance, generation is heated to its underpart molten steel or concurrent heating；
Step 5, when molten steel upper layer temperature reach casting ingot middle section temperature after, disconnect the external power supply, steel ingot starts cold
But, in cooling procedure, the electroslag on steel ingot upper layer plays insulation effect again, and entire steel ingot cooling rate is made to tend to consistent
Property；
After the completion of step 6, cooling, the insulated fireproof mud collar at the top of the punching block is sloughed, and remove the institute on steel ingot
State electroslag demoulding, casting complete.
Further, the electroslag ingredient are as follows: CaF2, CaO, Al2O3 and graphite, Composition Control exist: Al2O3: 40~
45%, CaO:30~35%, CaF2: 10~15%, graphite 10~15% is advisable；Its production method is to crush 100 mesh, in proportion
Mixing.
Further, the insulated fireproof mud collar height is 10-20cm, and the metallic conduction component is the metal of 5 × 8cm
Piece is placed in below upper edge hole at 3-5cm, and the two poles of the earth of power supply are separately connected with two metallic conduction components.
Further, the electroslag layer with a thickness of 15-25cm
Further, the time of the molten steel heating is 3-5min.
The invention has the following beneficial effects:
A kind of pouring procedure of titanium alloy steel ingot provided by the invention, it is electric using being laid at the top of molten steel in casting process
Slag blanket can play the role of anti-oxidation and sundries the osmotic protection to molten steel；When molten steel rises at the top of punching block, electroslag enters insulation
In fire resisting mud collar, after two metallic conduction component contacts, power-supply system forms loop, electroslag layer with regard to a suitable big resistance,
It as heat source, is heated to molten steel, avoids the steel ingot non-uniform temperature of casting process formation, cause scabbing, again for surface of steel ingot
Skin and longitudinal and transverse crackle, internal Residual hole, rimhole, it is loose and segregation the drawbacks of, improve steel ingot casting quality and
Post-production with material rate.
Detailed description of the invention
Fig. 1 is that a kind of casting mold of titanium alloy steel ingot is poured pre-structure schematic diagram；
Fig. 2 is structural schematic diagram after a kind of casting mold of titanium alloy steel ingot is poured.
In figure, 1, punching block；2, insulated fireproof mud collar；3, external power supply；4, metallic conduction component；Electroslag 5
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment one
The present embodiment provides a kind of pouring procedures of titanium alloy steel ingot combined with Figure 1 and Figure 2, comprising the following steps:
Step 1 prepares mould material
Including electroslag 5, punching block 1, insulated fireproof mud collar 2, metallic conduction component 4 and external power supply 3, the top of punching block 1 is set
It is equipped with insulated fireproof mud collar 2, and the internal diameter of punching block 1 is identical as the internal diameter of insulated fireproof mud collar 2, the two is coaxially distributed, and is insulated resistance to
Setting is there are two non-touching metallic conduction component 4 on 2 inner wall of chamotte circle, the positive and negative polarities of external power supply 3 respectively with two
Metallic conduction component 4 is separately connected, 1 Bottom ground of punching block.
5 ingredient of electroslag are as follows: Al2O3: 40%, CaO:30%, CaF2: 15%, graphite 15%, production method is to crush 100
Mesh mixes in proportion.
Electroslag 5 is put into 1 bottom of punching block by step 2, as protective layer, the not formed loop of external power supply 3 at this time；
Step 3, using bet method pouring technology, since electroslag density is less than molten steel, electroslag 5 floats on during casting
Above molten steel, rises with molten steel rising and play anti-oxidation and sundries osmosis.
Step 4, when electroslag 5 floats up to concordant with bead in insulated fireproof mud collar 2, stop the perfusion of molten steel, at this point, electroslag
5 contact with metallic conduction component 4, and power-supply system 3 forms loop, and electroslag is with regard to a suitable resistance, and the heat of generation is to its underpart
Molten steel heating；
Step 5, heating 3min, disconnect external power supply 3, and punching block is begun to cool, in cooling procedure, the electroslag on steel ingot upper layer
5 play insulation effect again, and entire steel ingot cooling rate is made to tend to consistency.
After the completion of step 6, cooling, the insulated fireproof mud collar 2 at 1 top of punching block is sloughed, and removes the electroslag 5 on steel ingot, is taken off
Mould, casting complete.
Embodiment two
The present embodiment provides a kind of pouring procedures of titanium alloy steel ingot combined with Figure 1 and Figure 2, comprising the following steps:
Step 1 prepares mould material
Including electroslag 5, punching block 1, insulated fireproof mud collar 2, metallic conduction component 4 and external power supply 3, the top of punching block 1 is set
It is equipped with insulated fireproof mud collar 2, and the internal diameter of punching block 1 is identical as the internal diameter of insulated fireproof mud collar 2, the two is coaxially distributed, and is insulated resistance to
Setting is there are two non-touching metallic conduction component 4 on 2 inner wall of chamotte circle, the positive and negative polarities of external power supply 3 respectively with two
Metallic conduction component 4 is separately connected, 1 Bottom ground of punching block.
5 ingredient of electroslag are as follows: Al2O3: 45%, CaO:35%, CaF2:10%, graphite 10%, production method are to crush 100
Mesh mixes in proportion.
Electroslag 5 is put into 1 bottom of punching block by step 2, as protective layer, the not formed loop of external power supply 3 at this time；
Step 3, using bet method pouring technology, due to 5 density of electroslag be less than molten steel, electroslag 5 during casting float
Above molten steel, rises with molten steel rising and play anti-oxidation and sundries osmosis.
Step 4, when electroslag 5 floats up to concordant with bead in insulated fireproof mud collar 2, stop the perfusion of molten steel, at this point, electroslag
5 contact with metallic conduction component 4, and power-supply system 3 forms loop, and electroslag 5 is with regard to a suitable resistance, and the heat of generation is to its underpart
Molten steel heating；
Step 5, heating 5min, disconnect external power supply 3, and punching block 1 is begun to cool, in cooling procedure, the electricity on steel ingot upper layer
Slag 5 plays insulation effect again, and entire steel ingot cooling rate is made to tend to consistency.
After the completion of step 6, cooling, the insulated fireproof mud collar 2 at 1 top of punching block is sloughed, and removes the electroslag 5 on steel ingot, is taken off
Mould, casting complete.
Using this heating method, first is that protecting in casting process using electroslag, molten steel oxidation and sundries can effectively prevent
Infiltration, second is that after energization, carrying out auxiliary heating using electroslag as resistance to molten steel using the heat that electroslag generates, making molten steel temperature
Go up, enhance mobility, play reparation and scab pipe and longitudinal and transverse crackle, eliminates what internal Residual hole and internal stress generated
Segregation phenomena improves the compactness of crystal structure, and the technological applicability is strong, there is good application prospect.
Claims (5)
1. a kind of pouring procedure of titanium alloy steel ingot, which is characterized in that method includes the following steps:
Step 1 prepares mould material
Including electroslag, punching block, insulated fireproof mud collar, metallic conduction component and external power supply, the top setting of the punching block is
Insulated fireproof mud collar is stated, and the internal diameter of the punching block is identical as the internal diameter of the insulated fireproof mud collar, and the two is coaxially distributed；Institute
Stating setting on insulated fireproof mud collar inner wall, there are two the non-touching metallic conduction components；The positive and negative anodes of the external power supply
It is connect respectively with two metallic conduction components, punching block Bottom ground；
The electroslag (being commonly called as covering slag) is put into the punching block bottom by step 2, as protective layer；
Step 3, using bet method pouring technology, the electroslag density be less than molten steel, floated on above molten steel during casting,
Rise with molten steel rising and plays anti-oxidation and sundries osmosis；
Step 4, when the electroslag floats up to concordant with upper edge hole in the insulated fireproof mud collar, stop the casting of molten steel, this
When, the electroslag and the metallic conduction component contact, the external power supply form loop, and the electroslag is with regard to a suitable electricity
The heat of resistance, generation is heated to its underpart molten steel or concurrent heating；
Step 5, when molten steel upper layer temperature reach casting ingot middle section temperature after, disconnect the external power supply, steel ingot is begun to cool,
In cooling procedure, the electroslag on steel ingot upper layer plays insulation effect again, and entire steel ingot cooling rate is made to tend to consistency；
After the completion of step 6, cooling, the insulated fireproof mud collar at the top of the punching block is sloughed, and remove the electricity on steel ingot
Slag demoulding, casting complete.
2. a kind of pouring procedure of titanium alloy steel ingot according to claim 1, which is characterized in that the electroslag ingredient are as follows:
CaF2, CaO, Al2O3 and graphite, Composition Control exist: Al2O3:40~45%, CaO:30~35%, CaF2:10~15%,
Graphite 10~15% is advisable；Its production method is to crush 100 mesh, is mixed in proportion.
3. a kind of pouring procedure of titanium alloy steel ingot according to claim 1, which is characterized in that the insulated fireproof mud collar
Height is 10-20cm, and the metallic conduction component is the sheet metal of 5 × 8cm, is placed under the insulated fireproof mud collar upper edge hole
At 3-5cm.
4. a kind of pouring procedure of titanium alloy steel ingot according to claim 1, which is characterized in that the thickness of the electroslag layer
For 15-25cm.
5. a kind of pouring procedure of titanium alloy steel ingot according to claim 1, which is characterized in that the lower part molten steel heating
Or the concurrent heating time is 3-5min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811056221.5A CN109014085B (en) | 2018-09-11 | 2018-09-11 | Pouring method of titanium alloy steel ingot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811056221.5A CN109014085B (en) | 2018-09-11 | 2018-09-11 | Pouring method of titanium alloy steel ingot |
Publications (2)
| Publication Number | Publication Date |
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| CN109014085A true CN109014085A (en) | 2018-12-18 |
| CN109014085B CN109014085B (en) | 2021-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811056221.5A Active CN109014085B (en) | 2018-09-11 | 2018-09-11 | Pouring method of titanium alloy steel ingot |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09164470A (en) * | 1995-12-13 | 1997-06-24 | Hitachi Metals Ltd | Electroslag hot top method |
| JPH10211546A (en) * | 1997-01-27 | 1998-08-11 | Hitachi Metals Ltd | Hot-top casting method |
| CN104070145A (en) * | 2014-06-19 | 2014-10-01 | 中国科学院金属研究所 | Manufacturing tooling and efficient production method of large height-diameter ratio circular casting billet |
| CN106493311A (en) * | 2016-11-10 | 2017-03-15 | 攀钢集团攀枝花钢铁研究院有限公司 | The production method of high-temperature corrosion-resistant alloy electrode ingot |
| CN107130118A (en) * | 2017-05-02 | 2017-09-05 | 中信重工机械股份有限公司 | A kind of running gate system of large-scale circular section consutrode and preparation method thereof |
-
2018
- 2018-09-11 CN CN201811056221.5A patent/CN109014085B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09164470A (en) * | 1995-12-13 | 1997-06-24 | Hitachi Metals Ltd | Electroslag hot top method |
| JPH10211546A (en) * | 1997-01-27 | 1998-08-11 | Hitachi Metals Ltd | Hot-top casting method |
| CN104070145A (en) * | 2014-06-19 | 2014-10-01 | 中国科学院金属研究所 | Manufacturing tooling and efficient production method of large height-diameter ratio circular casting billet |
| CN106493311A (en) * | 2016-11-10 | 2017-03-15 | 攀钢集团攀枝花钢铁研究院有限公司 | The production method of high-temperature corrosion-resistant alloy electrode ingot |
| CN107130118A (en) * | 2017-05-02 | 2017-09-05 | 中信重工机械股份有限公司 | A kind of running gate system of large-scale circular section consutrode and preparation method thereof |
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| Publication number | Publication date |
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| CN109014085B (en) | 2021-03-19 |
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