CN107052280A - Produce the ingot mould and technique of sector electrode - Google Patents
Produce the ingot mould and technique of sector electrode Download PDFInfo
- Publication number
- CN107052280A CN107052280A CN201710248945.9A CN201710248945A CN107052280A CN 107052280 A CN107052280 A CN 107052280A CN 201710248945 A CN201710248945 A CN 201710248945A CN 107052280 A CN107052280 A CN 107052280A
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- mould
- molten steel
- ingot
- technique
- steel
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- 238000000034 method Methods 0.000 title claims abstract description 27
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 66
- 239000010959 steel Substances 0.000 claims abstract description 66
- 238000004519 manufacturing process Methods 0.000 claims abstract description 24
- 238000005266 casting Methods 0.000 claims abstract description 22
- 206010039509 Scab Diseases 0.000 claims abstract description 6
- 238000010079 rubber tapping Methods 0.000 claims description 10
- 239000000956 alloy Substances 0.000 claims description 7
- 229910045601 alloy Inorganic materials 0.000 claims description 7
- 238000005422 blasting Methods 0.000 claims description 7
- 238000007670 refining Methods 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 6
- 239000010813 municipal solid waste Substances 0.000 claims description 6
- 239000002893 slag Substances 0.000 claims description 6
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 5
- 150000002910 rare earth metals Chemical class 0.000 claims description 5
- 238000003723 Smelting Methods 0.000 claims description 3
- 238000004458 analytical method Methods 0.000 claims description 3
- 238000000746 purification Methods 0.000 claims description 3
- 238000007711 solidification Methods 0.000 claims description 3
- 230000008023 solidification Effects 0.000 claims description 3
- 229910052755 nonmetal Inorganic materials 0.000 claims 1
- 239000012535 impurity Substances 0.000 abstract description 2
- 238000002844 melting Methods 0.000 abstract 1
- 230000008018 melting Effects 0.000 abstract 1
- 238000005242 forging Methods 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- 230000007812 deficiency Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000007528 sand casting Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000000505 pernicious effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
Classifications
-
- 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
- B22D7/06—Ingot moulds or their manufacture
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/0006—Adding metallic additives
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/04—Removing impurities by adding a treating agent
- C21C7/06—Deoxidising, e.g. killing
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/04—Making ferrous alloys by melting
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The ingot mould and technique of present invention production sector electrode, belong to electroslag remelting technique field, solve that complex procedures present in prior art, production cost are high, production efficiency is high, impurity content is high, surface scab is serious, removing surface is difficult, pours into a mould the technical problem serious compared with long electrode overall deformation；The present invention includes upper die and lower die, fixed plate and hanger；The lower mould is provided with die cavity；The die cavity is provided with the curving of castings；The hanger is fixedly connected on mould, and being equipped with upper die and lower die between fixed plate, the fixed plate of upper die and lower die has gap；The method of the present invention comprises the following steps：Melting molten steel；Molten steel is tilted and poured into the mould of the present invention；The demoulding.
Description
Technical field
The invention belongs to electroslag remelting technique field, and in particular to a kind of ingot mould and technique for producing sector electrode.
Background technology
At present, obtaining the consutrode of electroslag remelting includes following methods：Rolling；Forging processing and forging type；Casting
Making mode includes sand casting and die cast.
Different steel ingots are forged first using forging or rolling mode processing consutrode, forging is also tackled after forging
It is machined by given size；There is complex procedures, high material consumption, the high technological deficiency of cost；
, there is inner clamps debris in the method for the consutrode of sand casting production and gas content is high, and surface scab is serious,
Removing surface is difficult, pours into a mould the technological deficiency serious compared with long electrode overall deformation；
Swage pours into a mould electrode bar, and conventional process is one set of die, can only once pour and outpour an electrode bar, production
Efficiency is low.
The content of the invention
It is an object of the invention to provide a kind of ingot mould and technique for producing sector electrode, solve present in prior art
Complex procedures, production cost are high, production efficiency is high, impurity content is high, surface scab is serious, and removing surface is difficult, pours into a mould longer
The serious technical problem of electrode overall deformation.
In order to solve the above technical problems, the present invention provides following technical scheme：
The ingot mould of present invention production sector electrode includes upper die and lower die, fixed plate, steady pin and hanger；
The lower mould is provided with die cavity；The die cavity is provided with the curving of castings；The hanger is fixedly connected on mould, upper mould
It is integrated with the fixed plate being equipped with lower mould on fixed plate, upper mould with upper mould, the fixed plate on lower mould is integrated with lower mould, on
Mould and lower mould are fixed by steady pin, there is gap between the fixed position of the fixed plate of upper die and lower die, and upper mould is provided with upper mould
Inclination angle is positioned, lower mould positions inclination angle provided with lower mould.
It is 25 ° that the upper mould positioning inclination angle and lower mould, which position inclination angle,.
The scope of the curving of castings is：5°-7°.
Gap between the fixed position of the fixed plate of the upper die and lower die is 260mm.
The thickness of the fixed plate is 50mm, and width is 60mm.
Positioning inclination angle on the upper die and lower die is 25 °.
Cast uses inclined casting, i.e. exhaust outlet to be higher than gate end, and the scope at angle of inclination is：4°-6°.
The length of ingot mould is longer than electrode length by 3.5%.
Method using the ingot mould production sector electrode of present invention production sector electrode comprises the following steps：
Step one：Shot Blasting is carried out to the steel scrap of intermediate frequency (IF) smelting, surface scale, scab are removed；
Step 2：It will carry out carrying out molten steel in the steel scrap input intermediate frequency furnace after Shot Blasting in step 2；
Step 3：In step 2 molten steel to the later stage refining period when, according to stokehold molten steel component analysis result, adjust
Whole chemical composition, and carry out 4-6 slag making, take off slag operation, reduce the field trash and gas content of molten steel；
Step 4：Steel ladle in intermediate frequency furnace is fully toasted, baking temperature scope is：600℃-700℃；
Step 5：Ingot mould is preheated, preheating temperature scope is：150-200℃；
Step 6：After liquid steel temperature reaches 1650 DEG C -1680 DEG C, tapped, added during tapping into steel ladle dilute
Native refined alloy, rare-earth refining alloy addition is 4Kg/ tons of molten steel, and final purification is carried out to molten steel and deoxidation is forced, further
Improve the degree of purity of molten steel；
Step 7：Molten steel calmness 2-3 minutes in steel ladle after tapping, it is ensured that nonmetallic in the molten steel brought during tapping
Field trash fully floats；
Step 8：By in the pouring molten steel in the ladle after calmness to tilted-putted ingot mould；
Step 9：Steel ingot after cast is stripped after after sufficiently cool solidification.
The advantageous effects of the present invention：Two can be produced using the piece Ingot Mold of the type of a mould two, i.e. once-cast
Branch sector electrode rod, increases the sectional area of electrode, improves the relative cylinder charge of electroslag remelting, and improves operating efficiency, reduces
Production cost；Inclined casting is carried out using the angle of inclination of 4--6 degree, degree of filling of the molten steel in die cavity is not only ensure that, also has
Beneficial to the exhaust in casting process；Die cavity section is small, and the curving of castings is big, it is easy to be stripped；Die cavity is in lower mould, and die joint is fan
The upper surface of shape electrode, it is ensured that the quality of cast sector electrode, eliminates the casting flaws such as overlap on die joint, and be easy to
The demoulding；Upper and lower mould both sides are provided with fixed plate, carry out between a conjunction for upper and lower mould, the fixed position of the fixed plate of upper die and lower die
Gap is 260mm, effectively prevent the phenomenon for occurring swell in casting process；The thickness of fixed plate is 50mm, and width is
60mm；It is 260mm conjunction line space design, it is ensured that case power and the intensity of fixed plate；
Steel-making uses gas shield intermediate frequency furnace, reduces the pernicious gas content in steel；Steel scrap is using material is returned, to surface
Impeller blasting is carried out, harmful non-metallic inclusion content of molten steel is reduced；Rare-earth refining alloy is used during tapping, molten steel is entered
Row is further to force deoxidation, reduces the oxygen content of molten steel, and can further reduce field trash, refines the crystal grain of electrode
Degree.
Brief description of the drawings
Fig. 1 produces the front view of the ingot mould of fan-shaped ESR ingot for the present invention；
Fig. 2 produces the left view of the ingot mould of fan-shaped ESR ingot for the present invention；
Fig. 3 produces the graphics of the ingot mould of fan-shaped ESR ingot for the present invention；
Fig. 4 produces the flow chart of the method for sector electrode for the present invention；
Wherein, 1, hanger, 2, upper mould, 3, lower mould, 4, steady pin, 5, hanger fixed form, 6, upper mould positioning inclination angle, 7, solid
Fixed board, 8, die cavity, 9, the curving of castings, 10, lower mould positioning inclination angle.
Embodiment
The present invention is further elaborated below in conjunction with the accompanying drawings.
Specific embodiment one：
Referring to accompanying drawing 1, accompanying drawing 2, accompanying drawing 3 and accompanying drawing 4, the ingot mould of present invention production sector electrode includes upper mould 2, lower mould
3rd, fixed plate 7, steady pin 4 and hanger 1；
The lower mould 3 is provided with die cavity 8；The die cavity 8 is provided with the curving of castings 9；The hanger 1 is fixedly connected on mould 2
On, the fixed plate being equipped with upper mould 2 and lower mould 3 on fixed plate 7, upper mould is integrated with upper mould, and the fixed plate on lower mould is with
Mould is integrated, and upper mould 2 and lower mould 3 are fixed by steady pin 4, between having between the fixed position of the fixed plate of upper mould 2 and lower mould 3
Gap, upper mould 2 positions inclination angle 6 provided with upper mould, and lower mould 3 positions inclination angle 10 provided with lower mould.
It is 25 ° that the upper mould positioning inclination angle 6 and lower mould, which position inclination angle 10,.
The scope of the curving of castings 9 is：5°-7°.
Gap between the fixed position of the fixed plate of the upper mould 2 and lower mould 3 is 260mm.
The thickness of the fixed plate 7 is 50mm, and width is 60mm.
Positioning inclination angle on the upper mould 2 and lower mould 3 is 25 °.
Cast uses inclined casting, i.e. exhaust outlet to be higher than gate end, and the scope at angle of inclination is：4°-6°.
The length of ingot mould is longer than electrode length by 3.5%.
Method using the ingot mould production sector electrode of present invention production sector electrode comprises the following steps：
Step one：Shot Blasting is carried out to the steel scrap of intermediate frequency (IF) smelting, surface scale, scab are removed；
Step 2：It will carry out carrying out molten steel in the steel scrap input intermediate frequency furnace after Shot Blasting in step 2；
Step 3：In step 2 molten steel to the later stage refining period when, according to stokehold molten steel component analysis result, adjust
Whole chemical composition, and carry out 4-6 slag making, take off slag operation, reduce the field trash and gas content of molten steel；
Step 4：Steel ladle in intermediate frequency furnace is fully toasted, baking temperature scope is：600℃-700℃；
Step 5：Ingot mould is preheated, preheating temperature scope is：150-200℃；
Step 6：After liquid steel temperature reaches 1650 DEG C -1680 DEG C, tapped, added during tapping into steel ladle dilute
Native refined alloy, rare-earth refining alloy addition is 4Kg/ tons of molten steel, and final purification is carried out to molten steel and deoxidation is forced, further
Improve the degree of purity of molten steel；
Step 7：Molten steel calmness 2-3 minutes in steel ladle after tapping, it is ensured that nonmetallic in the molten steel brought during tapping
Field trash fully floats；
Step 8：By in the pouring molten steel in the ladle after calmness to tilted-putted ingot mould；
Step 9：Steel ingot after cast is stripped after after sufficiently cool solidification.
Specific embodiment two：
The present embodiment and the difference of embodiment one are that the curving of castings 9 is 5 °.
Specific embodiment three：
The present embodiment and the difference of embodiment one are that the curving of castings 9 is 7 °.
Specific embodiment four：
The present embodiment and the difference of embodiment one are that the curving of castings 9 is 6 °.
Specific embodiment five：
The present embodiment and the difference of embodiment one are that cast uses inclined casting, i.e. exhaust outlet to be higher than gate end, tilt
Angle is 4 °.
Specific embodiment six：
The present embodiment and the difference of embodiment one are that cast uses inclined casting, i.e. exhaust outlet to be higher than gate end, tilt
Angle is 6 °.
Specific embodiment seven：
The present embodiment and the difference of embodiment one are that cast uses inclined casting, i.e. exhaust outlet to be higher than gate end, tilt
Angle is 5 °.
Specific embodiment eight：
The present embodiment and the difference of embodiment one be, step 4：Steel ladle in intermediate frequency furnace is fully toasted, dried
Roasting 600 DEG C of temperature.
Specific embodiment nine：
The present embodiment and the difference of embodiment one be, step 4：Steel ladle in intermediate frequency furnace is fully toasted, dried
Roasting temperature is 700 DEG C.
Specific embodiment ten：
The present embodiment and the difference of embodiment one be, step 4：Steel ladle in intermediate frequency furnace is fully toasted, dried
Roasting temperature is：650℃.
Specific embodiment 11：
The present embodiment and the difference of embodiment one be, step 5：Ingot mould is preheated, preheating temperature is 150 DEG C.
Specific embodiment 12：
The present embodiment and the difference of embodiment one be, step 5：Ingot mould is preheated, preheating temperature is 200 DEG C.
Specific embodiment 13：
The present embodiment and the difference of embodiment one be, step 5：Ingot mould is preheated, preheating temperature is 175 DEG C；
Specific embodiment 14：
The present embodiment and the difference of embodiment one be, step 6：When liquid steel temperature reaches 1650 DEG C, tapped.
Specific embodiment 15：
The present embodiment and the difference of embodiment one be, step 6：When liquid steel temperature reaches 1680 DEG C, tapped.
Specific embodiment 16：
The present embodiment and the difference of embodiment one be, step 6：After liquid steel temperature reaches 1665 DEG C, tapped.
Claims (9)
1. produce sector electrode ingot mould and technique, it is characterised in that production sector electrode mould include upper mould (2), under
Mould (3), fixed plate (7), steady pin (4) and hanger (1)；
The lower mould (3) is provided with die cavity (8)；The die cavity (8) is provided with the curving of castings (9)；The hanger (1) is fixedly connected on
On upper mould (2), the fixed plate being equipped with upper mould (2) and lower mould (3) on fixed plate (7), upper mould is integrated with upper mould, on lower mould
Fixed plate be integrated with lower mould, it is fixed that upper mould (2) and lower mould (3) pass through steady pin (4), the fixation of upper mould (2) and lower mould (3)
There is gap between the fixed position of plate, upper mould (2) positions inclination angle provided with upper mould positioning inclination angle (6), lower mould (3) provided with lower mould
(10)。
2. the ingot mould and technique of production sector electrode according to claim 1, it is characterised in that the upper mould positioning is inclined
It is 25 ° that angle (6) and lower mould, which position inclination angle (10),.
3. the ingot mould and technique of production sector electrode according to claim 1, it is characterised in that the curving of castings
(9) scope is：5°-7°.
4. it is according to claim 1 production sector electrode ingot mould and technique, it is characterised in that the upper mould (2) and
Gap between the fixed position of the fixed plate of lower mould (3) is 260mm.
5. the ingot mould and technique of production sector electrode according to claim 1, it is characterised in that the fixed plate (7)
Thickness be 50mm, width is 60mm.
6. it is according to claim 1 production sector electrode ingot mould and technique, it is characterised in that the upper mould (2) and
Positioning inclination angle on lower mould (3) is 25 °.
7. the ingot mould and technique of production sector electrode according to claim 1, it is characterised in that cast is poured using inclination
Note, i.e. exhaust outlet are higher than gate end, and the scope at angle of inclination is：4°-6°.
8. the ingot mould and technique of production sector electrode according to claim 1, it is characterised in that the length ratio of ingot mould
Electrode length length 3.5%.
9. the ingot mould and technique of production sector electrode according to claim 1, it is characterised in that production sector electrode
Method comprises the following steps：
Step one：Shot Blasting is carried out to the steel scrap of intermediate frequency (IF) smelting, surface scale, scab are removed；
Step 2：It will carry out carrying out molten steel in the steel scrap input intermediate frequency furnace after Shot Blasting in step 2；
Step 3：In step 2 molten steel to the later stage refining period when, according to stokehold molten steel component analysis result, adjustmentization
Study point, and carry out 4-6 slag making, take off slag operation, reduce the field trash and gas content of molten steel；
Step 4：Steel ladle in intermediate frequency furnace is fully toasted, baking temperature scope is：600℃--700℃；
Step 5：Ingot mould is preheated, preheating temperature scope is：150--200℃；
Step 6：After liquid steel temperature reaches 1650 DEG C -1680 DEG C, tapped, add rare earth essence during tapping into steel ladle
Alloy is refined, rare-earth refining alloy addition is 4Kg/ tons of molten steel, final purification is carried out to molten steel and deoxidation is forced, further improved
The degree of purity of molten steel；
Step 7：Molten steel calmness 2-3 minutes in steel ladle after tapping, it is ensured that the nonmetal inclusion in the molten steel brought during tapping
Thing fully floats；
Step 8：By in the pouring molten steel in the ladle after calmness to tilted-putted ingot mould；
Step 9：Steel ingot after cast is stripped after after sufficiently cool solidification.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710248945.9A CN107052280B (en) | 2017-04-17 | 2017-04-17 | A kind of method for producing sector electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710248945.9A CN107052280B (en) | 2017-04-17 | 2017-04-17 | A kind of method for producing sector electrode |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107052280A true CN107052280A (en) | 2017-08-18 |
| CN107052280B CN107052280B (en) | 2018-04-03 |
Family
ID=59599713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710248945.9A Active CN107052280B (en) | 2017-04-17 | 2017-04-17 | A kind of method for producing sector electrode |
Country Status (1)
| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113737009A (en) * | 2021-08-20 | 2021-12-03 | 鞍钢铸钢有限公司 | Preparation method of flat electrode blank |
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|---|---|---|---|---|
| GB358730A (en) * | 1930-10-14 | 1931-10-15 | William Taylor Kitching | A machined flat jointed cast iron split ingot mould |
| JPH02160159A (en) * | 1988-12-14 | 1990-06-20 | Nissan Motor Co Ltd | Preheater for casting mold |
| CN201020523Y (en) * | 2007-01-05 | 2008-02-13 | 太原钢铁(集团)有限公司 | Electroslag remelting die steel casting die |
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| CN103243196A (en) * | 2013-05-15 | 2013-08-14 | 中国科学院金属研究所 | Purified smelting method of adding rare earth in intermediate frequency furnace |
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| CN104294171A (en) * | 2014-10-23 | 2015-01-21 | 江浦不锈钢制造有限公司 | Preparation method for austenitic stainless steel used for 316LN nuclear power |
| CN106141116A (en) * | 2015-03-31 | 2016-11-23 | 天工爱和特钢有限公司 | A kind of mold producing anistree ingot |
| CN106244899A (en) * | 2016-08-23 | 2016-12-21 | 宁国市开源电力耐磨材料有限公司 | A kind of energy-conservation smelting technology of 42CrMo |
-
2017
- 2017-04-17 CN CN201710248945.9A patent/CN107052280B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB358730A (en) * | 1930-10-14 | 1931-10-15 | William Taylor Kitching | A machined flat jointed cast iron split ingot mould |
| JPH02160159A (en) * | 1988-12-14 | 1990-06-20 | Nissan Motor Co Ltd | Preheater for casting mold |
| CN201020523Y (en) * | 2007-01-05 | 2008-02-13 | 太原钢铁(集团)有限公司 | Electroslag remelting die steel casting die |
| CN102941322A (en) * | 2012-11-07 | 2013-02-27 | 秦皇岛核诚镍业有限公司 | Production method of corrosion resistant alloy plates and split type pouring die used by same |
| CN103243196A (en) * | 2013-05-15 | 2013-08-14 | 中国科学院金属研究所 | Purified smelting method of adding rare earth in intermediate frequency furnace |
| CN203843126U (en) * | 2014-05-27 | 2014-09-24 | 四川蓝星机械有限公司 | Separating and combining type ingot mold |
| CN104294171A (en) * | 2014-10-23 | 2015-01-21 | 江浦不锈钢制造有限公司 | Preparation method for austenitic stainless steel used for 316LN nuclear power |
| CN106141116A (en) * | 2015-03-31 | 2016-11-23 | 天工爱和特钢有限公司 | A kind of mold producing anistree ingot |
| CN106244899A (en) * | 2016-08-23 | 2016-12-21 | 宁国市开源电力耐磨材料有限公司 | A kind of energy-conservation smelting technology of 42CrMo |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113737009A (en) * | 2021-08-20 | 2021-12-03 | 鞍钢铸钢有限公司 | Preparation method of flat electrode blank |
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|---|---|
| CN107052280B (en) | 2018-04-03 |
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