CN101417329A - Method with lost foam casting process production blast furnace water-cooling wall - Google Patents
Method with lost foam casting process production blast furnace water-cooling wall Download PDFInfo
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- CN101417329A CN101417329A CNA2007101133852A CN200710113385A CN101417329A CN 101417329 A CN101417329 A CN 101417329A CN A2007101133852 A CNA2007101133852 A CN A2007101133852A CN 200710113385 A CN200710113385 A CN 200710113385A CN 101417329 A CN101417329 A CN 101417329A
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- blast furnace
- cooling wall
- furnace water
- casting process
- lost foam
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- 238000001816 cooling Methods 0.000 title claims abstract description 78
- 238000000034 method Methods 0.000 title claims abstract description 66
- 238000010114 lost-foam casting Methods 0.000 title claims abstract description 39
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 37
- 239000000463 material Substances 0.000 claims abstract description 25
- 238000005266 casting Methods 0.000 claims abstract description 17
- 230000008034 disappearance Effects 0.000 claims abstract description 17
- 229910001209 Low-carbon steel Inorganic materials 0.000 claims abstract description 16
- 239000000498 cooling water Substances 0.000 claims abstract description 13
- 238000002844 melting Methods 0.000 claims abstract description 13
- 230000008018 melting Effects 0.000 claims abstract description 13
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910052802 copper Inorganic materials 0.000 claims abstract description 9
- 239000010949 copper Substances 0.000 claims abstract description 9
- 238000005275 alloying Methods 0.000 claims abstract description 8
- 230000001680 brushing effect Effects 0.000 claims abstract description 8
- 239000011248 coating agent Substances 0.000 claims abstract description 8
- 238000000576 coating method Methods 0.000 claims abstract description 8
- 229910001141 Ductile iron Inorganic materials 0.000 claims abstract description 6
- 238000005255 carburizing Methods 0.000 claims abstract description 5
- 244000035744 Hura crepitans Species 0.000 claims abstract description 4
- 238000001035 drying Methods 0.000 claims abstract description 4
- 229910052751 metal Inorganic materials 0.000 claims abstract description 3
- 239000002184 metal Substances 0.000 claims abstract description 3
- 239000006261 foam material Substances 0.000 claims description 4
- 239000003110 molding sand Substances 0.000 abstract description 7
- 238000007528 sand casting Methods 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 4
- 230000000873 masking effect Effects 0.000 abstract description 2
- 239000004033 plastic Substances 0.000 abstract 1
- 229920003023 plastic Polymers 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 238000000465 moulding Methods 0.000 description 8
- 229910000831 Steel Inorganic materials 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- 238000003723 Smelting Methods 0.000 description 6
- 229910052742 iron Inorganic materials 0.000 description 4
- 229910001021 Ferroalloy Inorganic materials 0.000 description 3
- 229910001018 Cast iron Inorganic materials 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 229910000519 Ferrosilicon Inorganic materials 0.000 description 1
- 229910000861 Mg alloy Inorganic materials 0.000 description 1
- 108010038629 Molybdoferredoxin Proteins 0.000 description 1
- 229910000805 Pig iron Inorganic materials 0.000 description 1
- 208000034189 Sclerosis Diseases 0.000 description 1
- 241001062472 Stokellia anisodon Species 0.000 description 1
- HBELESVMOSDEOV-UHFFFAOYSA-N [Fe].[Mo] Chemical compound [Fe].[Mo] HBELESVMOSDEOV-UHFFFAOYSA-N 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- ALKZAGKDWUSJED-UHFFFAOYSA-N dinuclear copper ion Chemical compound [Cu].[Cu] ALKZAGKDWUSJED-UHFFFAOYSA-N 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000002054 inoculum Substances 0.000 description 1
- PNXOJQQRXBVKEX-UHFFFAOYSA-N iron vanadium Chemical compound [V].[Fe] PNXOJQQRXBVKEX-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000004630 mental health Effects 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
A kind of method with lost foam casting process production blast furnace water-cooling wall.Utilize foamed plastics to make blast furnace water-cooling wall disappearance mould model, simultaneously at weldering system support column on the blast furnace water-cooling wall cooling water pipe that stewing makes and after brushing masking paste, be fixedly mounted in the blast furnace water-cooling wall disappearance mould model, through joint seal, finishing, the anti-carburizing fireproof coating of brushing, drying, the ram-jolt of dress sandbox, under negative pressure state, pour into the qualified molten metal of melting, unpack after the cooling, level, process, promptly obtain the blast furnace water-cooling wall finished product that lost foam casting process is produced.The present invention can be used for the production of the blast furnace water-cooling wall of materials such as casting pig, spheroidal graphite cast-iron, mild steel, micro-alloying low-carbon steel, fine copper, every performance all is better than the blast furnace water-cooling wall of the material of the same race of sand casting, can reduce by 90%～95% molding sand consumption, and simplify working process, raise labour productivity, improve the worker laboring environment, reduce labor strength and operating technology difficulty, good economic benefit and social benefit are arranged.
Description
Technical field:
The present invention relates to a kind of method, belong to metallurgy high furnace water-cooling wall production field with lost foam casting process production blast furnace water-cooling wall.
Background technology:
Blast furnace is one of smelter most important equipment, and its ruuning situation is directly connected to pig iron production and quality, is related to the energy consumption and the benefit of enterprise; Blast furnace water-cooling wall is one of most important process components of blast furnace, directly affects the safety in production and the service life of blast furnace.
The blast furnace water-cooling wall of using both at home and abroad is the casting blast furnace water-cooling wall more than 90% at present, and employed material has casting pig, spheroidal graphite cast-iron, mild steel, micro-alloying low-carbon steel, fine copper etc., all adopts sand casting process production.Lost foam casting compare with sand casting have the dimensional accuracy height, presentation quality is good, internal flaw is few and raise labour efficiency, reduce labor strength and operating technology difficulty, advantages such as molding sand can recycle, but the foamed material intensity of making disappearance mould model is low, in light weight, hardness is low, and any slight tension and compression collision all can make its distortion, breakage; Must be placed in advance blast furnace water-cooling wall cooling water pipe that the stewing in it makes then the intensity height, weight is big, hardness is high, in operations such as carrying, vanning, very easily cause the damage of disappearance mould model, can't moulding by casting, so nobody dare to use lost foam casting process when the casting blast furnace water-cooling wall.
Summary of the invention:
The purpose of this invention is to provide a kind of method with lost foam casting process production blast furnace water-cooling wall, for the production of blast furnace water-cooling wall provide a kind of more economically, the technical scheme of science.
Technical scheme of the present invention is: at first, utilize foamed material to make blast furnace water-cooling wall disappearance mould model, simultaneously at weldering system support column on the blast furnace water-cooling wall cooling water pipe that stewing makes and after brushing masking paste, be fixedly mounted in the blast furnace water-cooling wall disappearance mould model, through joint seal, after the finishing, the refractory material 1-6 road that brushing prepares, until reaching specific thickness, drying, the ram-jolt of dress sandbox, connect vacuum system, pour in the disappearance mould model, after cooling is finished at following melted metal liquid of negative pressure state, unpack, level, obtain the blast furnace water-cooling wall of producing with lost foam casting process.
Can produce the blast furnace water-cooling wall of various unlike materials with lost foam casting process, comprise that casting pig, spheroidal graphite cast-iron, mild steel, micro-alloying low-carbon steel, fine copper etc. are used to make all materials of blast furnace water-cooling wall at present, the material difference is the fusing point difference then, pouring temperature, shrinkage factor difference, but the operation sequence of its basic working procedure is consistent, and product quality is better than the product of sand casting.
Beneficial effect of the present invention:
1. with lost foam casting process production blast furnace water-cooling wall, can guarantee that the every index of the blast furnace water-cooling wall of producing reaches the relevant criterion requirement, and performance indications are better than the product of the material of the same race of ordinary sand casting.
2. with lost foam casting process production blast furnace water-cooling wall, adopt dry moulding, easy and simple to handle, reduced moulding workman's operating technology difficulty.
3. owing to adopt dry moulding, molding sand can be repeatedly used, and can reduce molding sand consumption 90-95%, and is energy-saving and cost-reducing, achieves noticeable achievement.
4. with lost foam casting process production blast furnace water-cooling wall, after foundry goods was unpacked, molding sand came off, and almost exempts from sand removal, and coating comes off automatically behind the cool to room temperature, has reduced the cast cleaning workload more than 90%, has improved working environment, has improved labor productivity.
5. with lost foam casting process production blast furnace water-cooling wall, cancel complicated procedures of forming such as mulling in the former sand casting technology, moulding oven dry, sclerosis, mould assembling, simplified the technological process of production, reduced production cost.
6. with lost foam casting process production blast furnace water-cooling wall, when saving resource, cutting down the consumption of energy, improved the environment of plant, reduced labor strength, useful workman's physical and mental health has been protected workers'interests.
Description of drawings:
Fig. 1: with the process chart of lost foam casting process production blast furnace water-cooling wall
Fig. 2: elevation before the blast furnace water-cooling wall disappearance mould model
Fig. 3: blast furnace water-cooling wall cooling water pipe and support column schematic diagram
Fig. 1: oval expression operation material, box indicating process.Wherein a is disappearance mould cast material a---organic foam material, and b is a seamless steel pipe, and c is the cooling water pipe support column, and d is the moulding molding sand, and e is melted metallic solution, and f is product a---blast furnace water-cooling wall; The numeral process: the 1st, disappearance mould modelling operation is made disappearance mould model with organic foam material (a), notes reserving amount of contraction and allowance according to the casting characteristics of blast furnace water-cooling wall casting material; The 2nd, blast furnace water-cooling wall cooling water pipe production process: seamless steel pipe (b) is simmered into the shape of blast furnace water-cooling wall cooling water pipe requirement, and brushes anti-carburizing fireproof coating; The 3rd, cooling water pipe support column welding sequence: on the blast furnace water-cooling wall cooling water pipe that stewing makes, weld support column (c); The 4th, clustered operation: the bubbles model that the blast furnace water-cooling wall cooling water pipe of welding upper support post and operation 1 are finished assembles, while joint seal, finishing; The 5th, coating is brushed operation: the disappearance mould model surface that anti-carburizing fireproof coating brushing is finished in operation 4, the gradation brushing is until reaching technological requirement thickness; The 6th, drying process: the model after the coating brushing by dry, is eliminated moisture; The 7th, vanning operation: dried mold setting, adding molding sand d ram-jolt; The 8th, metal material melting operation: melted by blast furnace water-cooling wall casting requirement metal material (e), reach the cast requirement; The 9th, vacuumize operation: connect sandbox and vacuum system, make disappearance mould model molding box inferior to be cast in negative pressure state; The 10th, cast operation: melted metallic solution is poured into a mould under negative pressure state in the mould model molding box that advances to disappear; The 11st, unpack and to level operation: finish when being cooled to unpack in cast, unpack and level, obtain blast furnace water-cooling wall foundry goods f.
Among Fig. 2-Fig. 3, A is the disappearance mould model of making of organic foam material, and B simmers the blast furnace water-cooling wall cooling water pipe that makes with seamless steel pipe, and C is the cooling water pipe support column.
The specific embodiment:
Embodiment one:
Produce casting pig material blast furnace water-cooling wall with lost foam casting process.Operate by the process chart with lost foam casting process production blast furnace water-cooling wall shown in Figure 1, wherein, cast iron melting is with intermediate frequency furnace or other smelting furnace melting casting pig molten iron, the qualified molten iron of melting obtains but wall foundry goods of casting pig blast furnace water-cooling through casting, cool off, unpack, leveling.
Embodiment two:
Produce spheroidal graphite cast-iron material blast furnace water-cooling wall with lost foam casting process.Operate by the process chart with lost foam casting process production blast furnace water-cooling wall shown in Figure 1, wherein, cast iron melting is with intermediate frequency furnace or other smelting furnace melting molten iron, handle with pouring method in the dam-type ladle with re-si-mg alloy, inovulant adopts long-acting composite inoculant repeatedly to breed to add moment to breed, the qualified molten iron of melting and nodularization obtains but wall foundry goods of spheroidal graphite cast-iron blast furnace water-cooling through casting, cool off, unpack, leveling.
Embodiment three:
Produce the low-carbon steel material blast furnace water-cooling wall with lost foam casting process.Operate by the process chart with lost foam casting process production blast furnace water-cooling wall shown in Figure 1, wherein, with intermediate frequency furnace or arc melting mild steel molten steel, the qualified molten steel of melting obtains but wall foundry goods of low-carbon steel material blast furnace water-cooling through casting, cool off, unpack, leveling.
Embodiment four:
Produce micro-alloying low-carbon steel matter blast furnace water-cooling wall with lost foam casting process.Operate by the process chart with lost foam casting process production blast furnace water-cooling wall shown in Figure 1, wherein, with intermediate frequency furnace or arc melting micro-alloying low-carbon steel molten steel, at first fusing, smelting meets the molten steel of mild steel requirement, carrying out microalloying then handles, micro-alloying low-carbon steel chemical composition by design calculates flatiron, molybdenum-iron, vanadium iron, ferroalloy additions such as ferrotianium, and ferroalloy is broken into suitable granularity, after preliminary deoxidation with ferrosilicon, the ferroalloy that microalloying is used adds in the stove, the cast of coming out of the stove behind the molten clear and final deoxidizing is through cooling off, unpack, level, obtain but wall foundry goods of micro-alloying low-carbon steel matter blast furnace water-cooling.
Embodiment five:
Produce fine copper material blast furnace water-cooling wall with lost foam casting process.By shown in Figure 1, process chart with lost foam casting process production blast furnace water-cooling wall is operated, wherein, can smelt melting furnace (as ground pit type crucible furnace, oil burner etc.) the smelting pure copper copper water of fine copper with intermediate frequency furnace or other, strictness is operated by the copper smelting technological requirement, and oxygen content, the air content of forbidding superhigh temperature to be smelted to guarantee copper smelting water are low as far as possible, can come out of the stove after the deoxidation, through casting, cool off, unpack, leveling, obtain but wall foundry goods of fine copper material blast furnace water-cooling.
Claims (7)
1, a kind of method with lost foam casting process production blast furnace water-cooling wall, it is characterized in that: utilize foamed material to make blast furnace water-cooling wall disappearance mould model, simultaneously behind the anti-carburizing fireproof coating of weldering system support column and brush on the blast furnace water-cooling wall cooling water pipe that stewing makes, be fixedly mounted in the blast furnace water-cooling wall disappearance mould model, through joint seal, finishing, the anti-carburizing fireproof coating of brushing, drying, the ram-jolt of dress sandbox, under negative pressure state, pour into the qualified molten metal of melting, unpack after the cooling, level, promptly obtain the blast furnace water-cooling wall finished product that lost foam casting process is produced.
2, the method with lost foam casting process production blast furnace water-cooling wall according to claim 1 is characterized in that: the foamed material of making blast furnace water-cooling wall disappearance mould model is an organic foam material.
3, the method with lost foam casting process production blast furnace water-cooling wall according to claim 1 is characterized in that: the material with the blast furnace water-cooling wall of lost foam casting process production is a casting pig.
4, the method with lost foam casting process production blast furnace water-cooling wall according to claim 1 is characterized in that: the material with the blast furnace water-cooling wall of lost foam casting process production is a spheroidal graphite cast-iron.
5, the method with lost foam casting process production blast furnace water-cooling wall according to claim 1 is characterized in that: the material with the blast furnace water-cooling wall of lost foam casting process production is a mild steel.
6, the method with lost foam casting process production blast furnace water-cooling wall according to claim 1 is characterized in that: the material with the blast furnace water-cooling wall of lost foam casting process production is the micro-alloying low-carbon steel.
7, the method with lost foam casting process production blast furnace water-cooling wall according to claim 1 is characterized in that: the material with the blast furnace water-cooling wall of lost foam casting process production is a fine copper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101133852A CN101417329A (en) | 2007-10-26 | 2007-10-26 | Method with lost foam casting process production blast furnace water-cooling wall |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101133852A CN101417329A (en) | 2007-10-26 | 2007-10-26 | Method with lost foam casting process production blast furnace water-cooling wall |
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| CN101417329A true CN101417329A (en) | 2009-04-29 |
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| CNA2007101133852A Pending CN101417329A (en) | 2007-10-26 | 2007-10-26 | Method with lost foam casting process production blast furnace water-cooling wall |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101590604B (en) * | 2009-04-30 | 2011-02-23 | 安徽晶菱机床制造有限公司 | Clearance adjustment device for numerically-controlled plane milling and boring machine |
| CN102337449A (en) * | 2010-07-21 | 2012-02-01 | 周传禄 | GRTCr high-toughness high-heat conduction cooling wall and production method thereof |
| CN102513793A (en) * | 2011-12-28 | 2012-06-27 | 烟台万隆真空冶金有限公司 | Manufacturing method for water cooled walls |
| CN102794401A (en) * | 2011-05-25 | 2012-11-28 | 宁波吉威熔模铸造有限公司 | Precision investment casting production device and process |
| CN105522110A (en) * | 2015-12-18 | 2016-04-27 | 贵州安吉航空精密铸造有限责任公司 | Process for manufacturing shell with embedded steel pipe through aluminum alloy investment casting |
| CN107282886A (en) * | 2016-04-05 | 2017-10-24 | 福建聚能机械制造有限公司 | A kind of aluminium alloy lost foam casting technique of built-in spiral coil water channel |
| CN107294256A (en) * | 2016-04-05 | 2017-10-24 | 福建聚能机械制造有限公司 | A kind of cast aluminium alloy gold motor casing of built-in stainless steel spiral coil water channel |
| CN107294260A (en) * | 2016-04-05 | 2017-10-24 | 福建聚能机械制造有限公司 | A kind of cast aluminium alloy gold motor casing of built-in copper spiral coil water channel |
| CN111112580A (en) * | 2020-01-13 | 2020-05-08 | 芜湖泓鹄材料技术有限公司 | Forming method of heat dissipation channel of automobile stamping die casting |
| CN113865348A (en) * | 2021-10-13 | 2021-12-31 | 陕西远大新材料技术有限公司 | Lost foam shell-shaped furnace liner for electric furnace lining and use method thereof |
-
2007
- 2007-10-26 CN CNA2007101133852A patent/CN101417329A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101590604B (en) * | 2009-04-30 | 2011-02-23 | 安徽晶菱机床制造有限公司 | Clearance adjustment device for numerically-controlled plane milling and boring machine |
| CN102337449A (en) * | 2010-07-21 | 2012-02-01 | 周传禄 | GRTCr high-toughness high-heat conduction cooling wall and production method thereof |
| CN102794401A (en) * | 2011-05-25 | 2012-11-28 | 宁波吉威熔模铸造有限公司 | Precision investment casting production device and process |
| CN102794401B (en) * | 2011-05-25 | 2014-09-24 | 宁波吉威熔模铸造有限公司 | Precision investment casting production device and process |
| CN102513793A (en) * | 2011-12-28 | 2012-06-27 | 烟台万隆真空冶金有限公司 | Manufacturing method for water cooled walls |
| CN105522110B (en) * | 2015-12-18 | 2018-04-06 | 贵州安吉航空精密铸造有限责任公司 | A kind of aluminium alloy model casting band inlays the manufacture craft of steel pipe fitting shell |
| CN105522110A (en) * | 2015-12-18 | 2016-04-27 | 贵州安吉航空精密铸造有限责任公司 | Process for manufacturing shell with embedded steel pipe through aluminum alloy investment casting |
| CN107282886A (en) * | 2016-04-05 | 2017-10-24 | 福建聚能机械制造有限公司 | A kind of aluminium alloy lost foam casting technique of built-in spiral coil water channel |
| CN107294256A (en) * | 2016-04-05 | 2017-10-24 | 福建聚能机械制造有限公司 | A kind of cast aluminium alloy gold motor casing of built-in stainless steel spiral coil water channel |
| CN107294260A (en) * | 2016-04-05 | 2017-10-24 | 福建聚能机械制造有限公司 | A kind of cast aluminium alloy gold motor casing of built-in copper spiral coil water channel |
| CN111112580A (en) * | 2020-01-13 | 2020-05-08 | 芜湖泓鹄材料技术有限公司 | Forming method of heat dissipation channel of automobile stamping die casting |
| CN113865348A (en) * | 2021-10-13 | 2021-12-31 | 陕西远大新材料技术有限公司 | Lost foam shell-shaped furnace liner for electric furnace lining and use method thereof |
| CN113865348B (en) * | 2021-10-13 | 2024-04-26 | 陕西远大新材料科技有限公司 | Vanishing mould shell-shaped furnace liner for electric furnace lining and use method thereof |
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