CN103954138B - A kind of copper molten iron cover and casting and molding method thereof - Google Patents
A kind of copper molten iron cover and casting and molding method thereof Download PDFInfo
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- CN103954138B CN103954138B CN201410186283.3A CN201410186283A CN103954138B CN 103954138 B CN103954138 B CN 103954138B CN 201410186283 A CN201410186283 A CN 201410186283A CN 103954138 B CN103954138 B CN 103954138B
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- steel plate
- copper
- molten iron
- iron cover
- matrix
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 108
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 89
- 239000010949 copper Substances 0.000 title claims abstract description 89
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 77
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 54
- 238000005266 casting Methods 0.000 title claims abstract description 30
- 238000000465 moulding Methods 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 19
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 102
- 239000010959 steel Substances 0.000 claims abstract description 102
- 239000011159 matrix material Substances 0.000 claims abstract description 59
- 238000005498 polishing Methods 0.000 claims abstract description 4
- 230000000630 rising effect Effects 0.000 claims abstract description 4
- 244000035744 Hura crepitans Species 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 4
- 239000002023 wood Substances 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- 238000001816 cooling Methods 0.000 abstract description 13
- 150000001879 copper Chemical class 0.000 abstract description 12
- PTVDYARBVCBHSL-UHFFFAOYSA-N copper;hydrate Chemical compound O.[Cu] PTVDYARBVCBHSL-UHFFFAOYSA-N 0.000 abstract description 10
- 230000021615 conjugation Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 230000008602 contraction Effects 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000036760 body temperature Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
The invention discloses a kind of copper molten iron cover and casting and molding method thereof, this copper molten iron cover comprises matrix, and be provided with copper tube in described matrix, described copper tube is connected with inlet channel and outlet conduit, is provided with the integrated steel plate frame with described matrix in described matrix; Described steel plate frame is formed by being located in described matrix mutually to dock with the integrated steel plate of described matrix, described steel plate is welded with pawl nail; The casting and molding method of this copper molten iron cover, comprises the following steps; Moulding; Pre-embedded steel slab; Bend pipe; Preheating; Pre-buried copper tube; Fusing; Cast; Unpack; Saw rising head; Machined; After polishing, finished product applies for checking and examination; Copper molten iron cover set Copper Water Jacket of the present invention and molten iron cover advantage, in one, not only have better structural strength, long service life, and have excellent heat conductivility, good cooling results.
Description
Technical field
The present invention relates to Copper Water Jacket used on metallurgical furnace and high temperature furnace, be specifically related to a kind of copper molten iron cover and casting and molding method thereof.
Background technology
The cooling jacket of Copper Water Jacket to be a kind of with copper be material, cooling device on metallurgical furnace and high temperature furnace, comprise wall body, inlet channel and outlet conduit, be provided with cooling copper tube in wall body, and cooling copper tube and inlet channel and outlet conduit are integral type structure, take water as heat exchange medium, utilize the heat conductivility of copper, transmitting metallurgical furnace kiln body temperature, is cooling device important on metallurgical furnace kiln.Be used widely at metallurgy industry.
Copper Water Jacket is compared with molten iron cover, has better heat conductivility, and cooling effect is better, can provide better protection for metallurgical furnace kiln; But Copper Water Jacket structural strength is poorer than molten iron cover, and service life wants shorter relative to molten iron cover, and cost is higher.
For this situation, applicant is pre-buried steel sheet frame in Copper Water Jacket wall body, is named copper molten iron cover; Copper molten iron cover not only has the same excellent heat conductivity performance of Copper Water Jacket, the structural strength simultaneously had, long service life.But because the fusing point of copper and iron, thermal conductivity factor, linear expansion coefficient and mechanical property etc. are all very different, steel plate frame and wall body easily occur in conjunction with bad defect.
Use conventional Copper Water Jacket manufacture method manufactured copper molten iron cover simultaneously, easily cause following problem: one is that pre-embedded steel slab and copper body faying face place have serious crack to be inclined in copper molten iron cover cooling procedure.Two is the corners at steel plate, being obstructed, easily warping phenomenon occurring because shrinking.Both problem all can make sheet frame and wall body in conjunction with bad, the bonding strength between both impacts.
Summary of the invention
The object of the present invention is to provide one not only to have excellent heat conductivity performance, good cooling results, and structural strength is better, the copper molten iron cover of long service life and casting and molding method thereof.
To achieve these goals, the technical solution used in the present invention is:
This copper molten iron cover, comprise matrix, be provided with copper tube in described matrix, described copper tube is connected with inlet channel and outlet conduit, is provided with the integrated steel plate frame with described matrix in described matrix; Described steel plate frame is formed by being located in described matrix mutually to dock with the integrated steel plate of described matrix, described steel plate is welded with pawl nail.
Further, described steel plate connects and holds end face to be 45 degree of inclined-planes, and steel plate connects, end end face contacts.
Further, described pawl follows closely mutual interval 200mm.
Further, described pawl nail is y-type structure.
The casting and molding method of this copper molten iron cover, comprises the following steps;
Moulding: placed by wood mould on moulding board, be placed on it by sandbox, makes die cavity;
Pre-embedded steel slab: weld pawl nail on steel plate, after welding is good, steel plate fixedly secures in die cavity, and constringency cleft is left in steel plate corner joint;
Bend pipe: copper tube is bent into predetermined shape;
Preheating: the sandbox fixing steel plate is put into drying room and fires, is incubated 6 ~ 7 hours at temperature 360 DEG C, dry without moisture to sandbox;
Pre-buried copper tube: the copper tube bent is placed in preheated die cavity, fixes copper pipe, cover top box, and fixation;
Fusing: copper plate is put into electric furnace, is melted to temperature 1140 ~ 1160 DEG C of red copper liquid and comes out of the stove, be poured onto in preheated casting ladle;
Cast: poring rate controls at 1.0m/s, pours in die cavity by red copper liquid, solidifies rear steel plate and fixedly secures on matrix;
Unpack: unpack after pouring 10 ~ 15 minutes, take out spray;
Saw rising head: blank dead head is amputated;
Machined: on request machined is carried out to blank;
After polishing, finished product applies for checking and examination.
Further, during pre-embedded steel slab, the constringency cleft that steel plate corner joint reserves is twice steel plate shrinkage value.
Further, steel plate welds pawl nail at interval of 200mm.
Further, during machined, steel plate and matrix are processed at grade.
Further, described pawl nail is y-type structure.
The invention has the advantages that: this copper molten iron cover, by arranging iron plate frame in matrix, steel plate frame is formed by being located in matrix mutually to dock with the integrated steel plate of matrix, steel plate is welded with pawl nail; Pawl nail and matrix strong bonded, ensure that the conjugation of steel plate and matrix, and then ensure that steel plate and matrix have good bonding strength; This copper molten iron cover not only has better structural strength, long service life, and has excellent heat conductivility, the cooling effect possessed.
The casting and molding method of this copper molten iron cover, pre-embedded steel slab front spring welds pawl nail, produces crack after avoiding steel plate and copper body faying face to cool like this, ensures that steel plate and matrix have good bonding strength; Steel plate is preheating together with die cavity, ensures that steel plate and matrix have good bonding strength further.
Further, steel plate corner joint reserves constringency cleft by copper casting shrinkage factor, makes its contraction of having living space, and then avoids steel plate to be obstructed because shrinking, and warping phenomenon occurs, further ensures that steel plate and matrix have good bonding strength; And then ensure that copper molten iron cover has better structural strength, long service life.
This copper molten iron cover set Copper Water Jacket and molten iron cover advantage, in one, not only have better structural strength, long service life, and have excellent heat conductivility, good cooling results.
Accompanying drawing explanation
Mark in the content expressed each width accompanying drawing of description of the present invention below and figure is briefly described:
Fig. 1 is the structural representation of copper molten iron of the present invention cover.
Fig. 2 is the A-A cross section structure schematic diagram of Fig. 1 copper molten iron cover.
Fig. 3 be in Fig. 2 copper molten iron cover steel plate and pawl order syndeton enlarged drawing.
Mark in above-mentioned figure is:
1, matrix, 2, copper tube, 3, steel plate, 4, boss, 5, pawl nail, 6, constringency cleft.
Detailed description of the invention
Contrast accompanying drawing below, by the description to optimum embodiment, the specific embodiment of the present invention is described in further detail.
As shown in Figure 1 to Figure 3, this copper molten iron cover, comprise matrix 1, be provided with copper tube 2 in matrix 1, copper tube 2 is connected with inlet channel and outlet conduit, is provided with the integrated steel plate frame with matrix 1 in matrix 1; Steel plate frame is formed by being located in matrix 1 mutually to dock with the integrated steel plate 3 of matrix 1, steel plate 3 is welded with pawl nail 5.Not only iron plate frame can increase copper molten iron nested structure intensity, and the pawl nail 5 of the upper welding of iron plate and matrix 1 strong bonded, ensure the conjugation of steel plate 3 and matrix 1, ensure that steel plate 3 and matrix 1 have good bonding strength; At guarantee copper molten iron cover, there is better structural strength like this, in the situation that increases the service life, there is excellent heat conductivility, the cooling effect possessed.
Further, steel plate 3 connects and holds end face to be 45 degree of inclined-planes, contacts between end end face and steel plate 3 connects.Steel plate 3 corner joint reserves constringency cleft 6 by copper casting shrinkage factor in casting process, makes its contraction of having living space, and then avoids steel plate 3 to be obstructed because shrinking, and warping phenomenon occurs; After casting, steel plate 3 connects and holds end face just to contact, and connecing end end face is 45 degree of inclined-planes, and steel plate 3 docks rear formation steel plate frame, ensures that steel plate 3 and matrix 1 have good bonding strength; And then ensure that copper molten iron cover has better structural strength, long service life.
Further, pawl nail 5 mutual interval 200mm, after pawl nail 5 is so arranged, while the conjugation ensureing steel plate 3 and matrix 1 and bonding strength, can control cost to greatest extent.
Further, pawl nail 5 is y-type structure.Y-type structure structure can ensure that pawl nail 5 combines with matrix 1 firmly, and then ensures that steel plate 3 and matrix 1 combine, and ensures conjugation and the bonding strength of steel plate 3 and matrix 1.
The matrix 1 of copper molten iron cover is provided with boss 4, and boss 4 is preferably eight, and good rear central bore cast by boss 4, and hole is connected the effect playing fixed copper molten iron cover with bolt.
The casting and molding method of this copper molten iron cover, comprises the following steps;
Moulding: wood mould is placed on moulding board, wood mould puts processing capacity by figure paper size and shrinkage factor is made in advance, is placed on it by sandbox, and spring sand makes die cavity;
Pre-embedded steel slab 3: weld a pawl nail 5 every 200mm on steel plate 3, pawl nail 5 is y-type structure, and y-type structure pawl nail 5 makes steel plate 3 and matrix 1 strong bonded after casting, produces crack after avoiding steel plate 3 and matrix 1 faying face to cool; After welding is good, steel plate 3 fixedly secures in die cavity, and constringency cleft is left in steel plate 3 corner joint; Constringency cleft is twice copper casting shrinkage value, and copper casting shrinkage factor is 1% ~ 2%, shrinks spacing and makes steel plate 3 have space contraction when casting, can avoid steel plate 3 that warpage occurs, ensure the conjugation of steel plate 3 and matrix 1, further ensure bonding strength;
Bend pipe: copper tube 2 is bent into predetermined shape;
Preheating: the sandbox fixing steel plate 3 is put into drying room and fires, is incubated 6 ~ 7 hours at temperature 360 DEG C, dry without moisture to sandbox; Steel plate 3 preheating together with die cavity, ensures conjugation and the bonding strength of steel plate 3 and matrix 1 further;
Pre-buried copper tube 2: be placed in preheated die cavity by the copper tube 2 bent, fix copper pipe, prevent displacement, cover top box, and fixation, prevent from running case;
Fusing: copper plate is put into electric furnace, is melted to temperature 1140 ~ 1160 DEG C of red copper liquid and comes out of the stove, be poured onto in preheated casting ladle;
Cast: poring rate controls at 1.0m/s, pours in die cavity by red copper liquid, solidifies rear steel plate 3 and fixedly secures on matrix 1;
Unpack: unpack after pouring 10 ~ 15 minutes, take out spray;
Saw rising head: blank dead head is amputated;
Machined: on request machined is carried out to blank; Steel plate 3 and matrix 1 are processed at grade;
After polishing, finished product applies for checking and examination.
The casting and molding method of this copper molten iron cover, pre-embedded steel slab 3 front spring 3 welds pawl nail 5, produces crack after avoiding steel plate 3 and copper body faying face to cool like this, ensures that steel plate 3 and matrix have good bonding strength; Steel plate 3 preheating together with die cavity, ensures that steel plate 3 and matrix have good bonding strength further.
Further, steel plate 3 corner joint reserves constringency cleft by copper casting shrinkage factor, makes its contraction of having living space, and then avoids steel plate 3 to be obstructed because shrinking, and warping phenomenon occurs, further ensures that steel plate 3 and matrix have good bonding strength; And then ensure that copper molten iron cover has better structural strength, long service life.This copper molten iron cover set Copper Water Jacket and molten iron cover advantage, in one, not only have better structural strength, long service life, and have excellent heat conductivility, good cooling results.
The matrix of copper molten iron cover is provided with boss, and boss is preferably eight, and rear central bore cast by boss, and hole is connected the effect playing fixed copper molten iron cover with bolt.Steel plate 3 has four pieces, reserves gap between block and block by copper casting shrinkage factor.Pawl nail 5 is welded on steel plate 3, plays the effect of fixation steel plate 3.Machining allowance is left on matrix and steel plate 3 surface, and machined after casting is good, ensures matrix and steel plate 3 surfacing.
Copper molten iron cover casting and molding method of the present invention, practicality is workable, good manufacturability, can create new profit growth point for enterprise.
Obvious specific implementation of the present invention is not subject to the restrictions described above, as long as have employed the improvement of the various unsubstantialities that method of the present invention is conceived and technical scheme is carried out, all within protection scope of the present invention.
Claims (9)
1. a copper molten iron cover, comprises matrix, is provided with copper tube in described matrix, and described copper tube is connected with inlet channel and outlet conduit, it is characterized in that: be provided with the integrated steel plate frame with described matrix in described matrix; Described steel plate frame is formed by being located in described matrix mutually to dock with the integrated steel plate of described matrix, described steel plate is welded with pawl nail.
2. copper molten iron cover as claimed in claim 1, is characterized in that: described steel plate connects and holds end face to be 45 degree of inclined-planes, and steel plate connects, end end face contacts.
3. copper molten iron cover as claimed in claim 2, is characterized in that: described pawl follows closely mutual interval 200mm.
4. copper molten iron cover as claimed in claim 3, is characterized in that: described pawl nail is y-type structure.
5. a casting and molding method for copper molten iron cover according to claim 1, is characterized in that: comprise the following steps;
Moulding: placed by wood mould on moulding board, be placed on it by sandbox, makes die cavity;
Pre-embedded steel slab: weld pawl nail on steel plate, after welding is good, steel plate fixedly secures in die cavity, and constringency cleft is left in steel plate corner joint;
Bend pipe: copper tube is bent into predetermined shape;
Preheating: the sandbox fixing steel plate is put into drying room and fires, is incubated 6 ~ 7 hours at temperature 360 DEG C, dry without moisture to sandbox;
Pre-buried copper tube: the copper tube bent is placed in preheated die cavity, fixes copper pipe, cover top box, and fixation;
Fusing: copper plate is put into electric furnace, is melted to temperature 1140 ~ 1160 DEG C of red copper liquid and comes out of the stove, be poured onto in preheated casting ladle;
Cast: poring rate controls at 1.0m/s, pours in die cavity by red copper liquid, solidifies rear steel plate and fixedly secures on matrix;
Unpack: unpack after pouring 10 ~ 15 minutes, take out spray;
Saw rising head: blank dead head is amputated;
Machined: on request machined is carried out to blank;
After polishing, finished product applies for checking and examination.
6. the casting and molding method of copper molten iron cover as claimed in claim 5, it is characterized in that: during pre-embedded steel slab, the constringency cleft that steel plate corner joint reserves is twice steel plate shrinkage value.
7. the casting and molding method of copper molten iron cover as claimed in claim 6, is characterized in that: steel plate welds pawl nail at interval of 200mm.
8. the casting and molding method of copper molten iron cover as claimed in claim 5, it is characterized in that: during machined, steel plate and matrix are processed at grade.
9. the casting and molding method of copper molten iron cover as claimed in claim 5, is characterized in that: described pawl nail is y-type structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410186283.3A CN103954138B (en) | 2014-05-05 | 2014-05-05 | A kind of copper molten iron cover and casting and molding method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410186283.3A CN103954138B (en) | 2014-05-05 | 2014-05-05 | A kind of copper molten iron cover and casting and molding method thereof |
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| CN103954138A CN103954138A (en) | 2014-07-30 |
| CN103954138B true CN103954138B (en) | 2015-07-29 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105423763A (en) * | 2015-12-11 | 2016-03-23 | 芜湖福记恒机械有限公司 | Copper water jacket and production method thereof |
| CN113670526B (en) * | 2021-09-09 | 2024-01-16 | 芜湖福记恒机械有限公司 | Copper water jacket tightness detection equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE29616509U1 (en) * | 1996-09-23 | 1996-11-14 | REA Rhein-Emscher Armaturen GmbH & Co KG, 47199 Duisburg | Wall cooling element for shaft furnaces |
| CN1145705C (en) * | 2000-08-04 | 2004-04-14 | 冶金工业部鞍山热能研究院 | Casting-cooling wall with buried pipes and its material |
| CN2479025Y (en) * | 2001-01-05 | 2002-02-27 | 张勇 | Copper core composite cooling wall for blast furnace |
| CN100999768A (en) * | 2007-01-04 | 2007-07-18 | 河北省万全县丰华有色金属加工厂 | Blast furnace cooling wall |
| CN201212040Y (en) * | 2008-07-04 | 2009-03-25 | 张殿有 | Combined cooling stave |
| CN203848686U (en) * | 2014-05-05 | 2014-09-24 | 芜湖福记恒机械有限公司 | Copper and iron cooling water jacket |
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