CN104707973A - Bi-metal reinforcement cooling plate production method of internally installing copper pipe in copper matrix - Google Patents
Bi-metal reinforcement cooling plate production method of internally installing copper pipe in copper matrix Download PDFInfo
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- CN104707973A CN104707973A CN201310674060.7A CN201310674060A CN104707973A CN 104707973 A CN104707973 A CN 104707973A CN 201310674060 A CN201310674060 A CN 201310674060A CN 104707973 A CN104707973 A CN 104707973A
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- copper
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- copper substrate
- coldplate
- steel pipe
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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
- B22D19/00—Casting in, on, or around objects which form part of the product
- B22D19/0072—Casting in, on, or around objects which form part of the product for making objects with integrated channels
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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
- B22D19/00—Casting in, on, or around objects which form part of the product
- B22D19/16—Casting in, on, or around objects which form part of the product for making compound objects cast of two or more different metals, e.g. for making rolls for rolling mills
Abstract
The invention discloses a bi-metal reinforcement cooling plate production method of internally installing a copper pipe in a copper matrix. The method comprises the following steps that firstly, oxygen-free copper is used as a matrix, and a rolled copper pipe is cast in the matrix; secondly, an external cast steel plate part of the copper matrix is processed. According to the method, the cooling capacity of a cooling plate can be improved, the usage amount of cooling water is thus reduced, the production efficiency is improved, and the production cost is also reduced.
Description
Technical field:
The present invention relates to metallurgical coldplate technical field, more specifically to the bimetallic strengthening coldplate production method of the built-in steel pipe of a kind of Copper substrate.
Background technology:
Coldplate is the cooling device that metallurgy industry is conventional, under arms in process, coldplate is by the cooling water of certain pressure and flow, the heat that High-temp. kiln in metallurgy industry produces is taken away in time, ensure that High-temp. kiln is under safe and reliable serviceability temperature for a long time, thus coldplate is higher to the requirement of long service under heat transfer property and hot conditions.Thermal resistance is the resistance in diabatic process, and the larger heat transmission resistance of thermal resistance is larger.For coldplate, its thermal resistance mainly comprises cooling plate base body, cooling water pipe, air gap etc. between matrix and water pipe.Through data analysis, the entire thermal resistance of the casting copper cooling plate that conventional 57mm is thick is 1/49 of traditional cast iron coldplate that 120mm is thick.Therefore, Copper substrate is the optimal selection of coldplate.
But, when the matrix of coldplate and cooling water pipe all adopt metallic copper, also exist following not enough: (1) cooling water pipe also adopts metallic copper, has raised production cost further; (2) easily there is burn through and distortion in copper cooling water pipe in casting process, and production process yield rate is low; (3) Copper substrate is in actual use because intensity is low, in expanded by heating repeatedly, deformation process, easily damaged, and then leakage accident occurs, and causes potential safety hazard.
In addition, also there is indivedual scholar to propose the coldplate adopting rolling fine copper as matrix, then process cooling duct by the mode of boring.But also existing following not enough: the Copper substrate of (1) casting needs through rolling, has raised production cost further.(2) often there is the problem in inclined hole in boring procedure, cause cooling duct to misalign, increase cooling water input resistance, cause cooling water transportation problem.(3) process cooling duct in the mode of holing, the passage at turning can not be processed with, in the corner of cooling duct, still need the mode adopting welding.Easily there is aforesaid leakage problems in commissure, also there is potential safety hazard.
Summary of the invention:
Object of the present invention is just the bimetallic strengthening coldplate production method providing the built-in steel pipe of a kind of Copper substrate, it enhance the cooling capacity of coldplate, and then the use amount of cooling water can be reduced and it can also be enhanced productivity and also reduces production cost simultaneously.
For achieving the above object, the bimetallic strengthening coldplate production method of the built-in steel pipe of a kind of Copper substrate of the present invention, it comprises the steps: first, using oxygen-free copper as matrix and the steel pipe be cast in matrix through rolling: (1), adopt intermediate frequency furnace copper smelting water, in copper smelting water latter stage, divide secondary to add slag forming agent, make its uniform fold at copper water surface; (2), before Tong Shui comes out of the stove, in induction furnace, disposable interpolation granularity is the Antaciron block of 30-40mm, and the mode adopting machinery to spray into is added; (3), prepare composite solid cooling medium, after preparing, by composite solid cooling medium under atmospheric environment, carry out high temperature sintering, calcination temperature controls at 900-1300 DEG C, removes the adhesive sintering block into; (4) liquid cooling medium of reusable edible, is equipped with; (5), by the U-shaped cooling water pipe obtained with rolled steel tube put into cast model on request, at the two ends of U-shaped cooling water pipe by the external high-pressure hydraulic pump of resistant to elevated temperatures flexible pipe, the pressure of high-pressure hydraulic pump is 5-15Mpa; Before the cast of copper water, in U-shaped cooling water pipe, pass into the liquid cooling medium of circulation in advance, in copper water casting process, composite solid cooling medium is joined in the liquid cooling medium of circulation, to ensure that U-shaped cooling water pipe surface is micro-molten; (6), with the copper water adding Antaciron block pour into a mould cooling plate base body, be cast in cooling plate base body by the middle part of U-shaped cooling water pipe, two ends are stretched out in matrix, control the copper water degree of superheat 40-80 DEG C of scope; (7), in modeling process, allow and pour into a mould model accumbency, rising head lays particular stress on side moulding, by padded for model rising head side after model mould assembling, makes rigid flask become 10-15 degree with ground; In casting process, adopt upper and lower two-layer ingate to carry out ladder cast, two-layer ingate be spaced apart 10-50cm, control the process of setting of novel coldplate accordingly, impel its formed consecutive solidification; (8), cool, lay down model, novel coldplate is made.
The second, the cast steel plate part that worked copper matrix is external: (1), adopt intermediate frequency furnace smelting molten steel water, in smelting molten steel latter stage, a point secondary adds slag forming agent, makes its uniform fold at copper water surface; (2), before molten steel is come out of the stove, in induction furnace, disposable interpolation granularity is the Antaciron block of 30-40mm, and the mode adopting machinery to spray into is added; (3), merge the advantage of the cast of secondary ladder and inclined casting, namely in modeling process, allow the accumbency of cast model, rising head lays particular stress on side moulding, by padded for model rising head side after model mould assembling, makes rigid flask become 10-15 degree with ground; In casting process, adopt upper and lower two-layer ingate to carry out ladder cast (being spaced apart 10-50cm of two-layer ingate), control solidi fication process accordingly, impel it to form consecutive solidification; (4), cool, lay down model, the part of the external cast steel plate of the Copper substrate completed.
Three, the Copper substrate of cast-ining steel pipe and the external cast steel plate part of Copper substrate are assembled: part of cast-ining steel pipe in the above-mentioned Copper substrate completed is preheating to 500-650 DEG C by (1), warm needs to complete in the heating furnace of good seal, heating furnace needs to pass into argon purge before intensification, and argon gas amount is 1.5-2 times of heating furnace dischargeable capacity.In heating process, heating furnace domestic demand continues to pass into circulation argon gas, and argon flow amount is 10-30L/min per minute, and heating rate need control at 5-10 DEG C/min; (2) after reaching preheat temperature, the part of cast-ining steel pipe in Copper substrate is taken out in heating furnace, " dovetail groove " of part of being cast-ined steel pipe in Copper substrate by the external cast steel plate of Copper substrate with " dovetail " inserts, after insertion, the coldplate after assembling is sent into heating furnace as early as possible, in heating furnace, progressively cool to less than 100 DEG C, take out and be cooled to room temperature; (3) after being cooled to room temperature, in the space of dovetail groove, pour into carbon element ramming mass and ramming is closely knit, make above-mentioned two parts close contact; (4) production of novel coldplate is completed.
Preferred as technique scheme, described composite solid cooling medium is Cr2O3:45-47%, SiO2:1-2%, CaO:0.5-1%, FeO:20-30%, MgO:10-15%; AL2O3:10-20%; All the other compositions are granularities is 70-100 object carbon dust.
Preferred as technique scheme, described slag forming agent, comprising the calcium oxide of 80-85% and the magnesia of 10-15%.
Preferred as technique scheme, described slag forming agent, its additional proportion is 1kg/ ton copper water.
Preferred as technique scheme, described Antaciron block, its composition is 15-20% rare earth element, 20-30% silicon, 50-65% metallic iron.
Preferred as technique scheme, described Antaciron block, its addition 0.1-0.7kg/ ton copper water.
Preferred as technique scheme, described liquid cooling medium, its flow velocity is 1-10m/s.
Preferred as technique scheme, described composite solid cooling medium, its addition is: 1-10kg/ ton copper water.
Preferred as technique scheme, the cross section of described cooling water pipe is oval, and the minor axis of described ellipse and the length ratio of major axis are 0.5 ~ 0.7.
Preferred as technique scheme, described cooling water pipe is many, described Copper substrate and the external cast steel plate part of Copper substrate are matched by " dovetail " and " dovetail groove " and realize physical connection, and Copper substrate and the external cast steel plate partial reinforment of Copper substrate have employed the bimetallic complex method of the mechanical performance can strengthening Copper substrate.
Beneficial effect of the present invention is: of the present invention provide in a kind of Copper substrate cast-in steel pipe, the production method of bimetallic that Copper substrate is engaged cast steel slab outward strengthening coldplate.This bimetallic strengthening coldplate comprises oxygen-free copper matrix, through the steel cooling water pipe of rolling, the cast steel slab that is mutually engaged with Copper substrate, coldplate by oxygen-free copper as cooling plate base body, by the steel pipe through rolling as cooling water pipe, Copper substrate and cooling water pipe one-step casting shaping; Copper substrate is engaged in the mode of physical connection mutually with external cooling metal sheets, and injects carbon element ramming mass in " dovetail groove " region of occlusion.This novel coldplate has following advantage:
1, coldplate have employed Copper substrate, and compared with plain cast iron coldplate, the heat conductivility of copper is better, improves the cooling capacity of coldplate on the whole, and then can reduce the use amount of cooling water;
2, compared with fine copper coldplate, avoid cooling water pipe and easily burn through occurs in casting process, and the problem that yield rate is low (fusing point of copper is about 1083 DEG C, and the fusing point of steel is about 1530 DEG C, so in casting process, can not wear when the steel pipe imbedded runs into liquid copper);
3, compared with rolling fine copper coldplate, cooling water pipe and matrix one-step casting is shaping decreases welding process, improves production efficiency, reduces production cost;
4, imbed steel pipe in the inside of Copper substrate, the mode of outside " occlusion " cast steel plate, improves ability and the mechanical performance of the resistance to deformation of coldplate, and then extends the service life of coldplate;
5, the cast steel plate of Copper substrate and outside " occlusion " adopts the mode of physical connection, and transport, the installation of product are all easier.
Accompanying drawing illustrates:
Below in conjunction with accompanying drawing, the present invention is described further:
Fig. 1 is the structural representation that production and processing of the present invention completes coldplate
Fig. 2 is the sectional view of Fig. 1
In figure: 1, oxygen-free copper matrix; 2, U-shaped cooling water pipe; 3, external cast steel plate
Detailed description of the invention:
The following stated is only the preferred embodiment embodying the principle of the invention, does not therefore limit protection scope of the present invention
Be coldplate that the present invention machines as shown in Figure 1, 2, this coldplate is made up of oxygen-free copper matrix 1, U-shaped cooling water pipe 2 and external cast steel plate 3, this coldplate is cast into U-shaped cooling water pipe 2 in oxygen-free copper matrix 1, external cast steel plate 3 realizes being connected by dovetail groove with oxygen-free copper matrix 1, its specific embodiment comprises the steps: first, using oxygen-free copper as matrix and the steel pipe be cast in matrix through rolling: (1), adopt intermediate frequency furnace copper smelting water, in copper smelting water latter stage, divide secondary to add slag forming agent, make its uniform fold at copper water surface; (2), before Tong Shui comes out of the stove, in induction furnace, disposable interpolation granularity is the Antaciron block of 30-40mm, and the mode adopting machinery to spray into is added; (3), prepare composite solid cooling medium, after preparing, by composite solid cooling medium under atmospheric environment, carry out high temperature sintering, calcination temperature controls at 900-1300 DEG C, removes the adhesive sintering block into; (4) liquid cooling medium of reusable edible, is equipped with; (5), by the U-shaped cooling water pipe obtained with rolled steel tube put into cast model on request, at the two ends of U-shaped cooling water pipe by the external high-pressure hydraulic pump of resistant to elevated temperatures flexible pipe, the pressure of high-pressure hydraulic pump is 5-15Mpa; Before the cast of copper water, in U-shaped cooling water pipe, pass into the liquid cooling medium of circulation in advance, in copper water casting process, composite solid cooling medium is joined in the liquid cooling medium of circulation, to ensure that U-shaped cooling water pipe surface is micro-molten; (6), with the copper water adding Antaciron block pour into a mould cooling plate base body, be cast in cooling plate base body by the middle part of U-shaped cooling water pipe, two ends are stretched out in matrix, control the copper water degree of superheat 40-80 DEG C of scope; (7), in modeling process, allow and pour into a mould model accumbency, rising head lays particular stress on side moulding, by padded for model rising head side after model mould assembling, makes rigid flask become 10-15 degree with ground; In casting process, adopt upper and lower two-layer ingate to carry out ladder cast, two-layer ingate be spaced apart 10-50cm, control the process of setting of novel coldplate accordingly, impel its formed consecutive solidification; (8), cool, lay down model, novel coldplate is made.
The second, the cast steel plate part that worked copper matrix is external: (1), adopt intermediate frequency furnace smelting molten steel water, in smelting molten steel latter stage, a point secondary adds slag forming agent, makes its uniform fold at copper water surface; (2), before molten steel is come out of the stove, in induction furnace, disposable interpolation granularity is the Antaciron block of 30-40mm, and the mode adopting machinery to spray into is added; (3), merge the advantage of the cast of secondary ladder and inclined casting, namely in modeling process, allow the accumbency of cast model, rising head lays particular stress on side moulding, by padded for model rising head side after model mould assembling, makes rigid flask become 10-15 degree with ground; In casting process, adopt upper and lower two-layer ingate to carry out ladder cast (being spaced apart 10-50cm of two-layer ingate), control solidi fication process accordingly, impel it to form consecutive solidification; (4), cool, lay down model, the part of the external cast steel plate of the Copper substrate completed.
Three, the Copper substrate of cast-ining steel pipe and the external cast steel plate part of Copper substrate are assembled: part of cast-ining steel pipe in the above-mentioned Copper substrate completed is preheating to 500-650 DEG C by (1), warm needs to complete in the heating furnace of good seal, heating furnace needs to pass into argon purge before intensification, and argon gas amount is 1.5-2 times of heating furnace dischargeable capacity.In heating process, heating furnace domestic demand continues to pass into circulation argon gas, and argon flow amount is 10-30L/min per minute, and heating rate need control at 5-10 DEG C/min; (2) after reaching preheat temperature, the part of cast-ining steel pipe in Copper substrate is taken out in heating furnace, " dovetail groove " of part of being cast-ined steel pipe in Copper substrate by the external cast steel plate of Copper substrate with " dovetail " inserts, after insertion, the coldplate after assembling is sent into heating furnace as early as possible, in heating furnace, progressively cool to less than 100 DEG C, take out and be cooled to room temperature; (3) after being cooled to room temperature, in the space of dovetail groove, pour into carbon element ramming mass and ramming is closely knit, make above-mentioned two parts close contact; (4) production of novel coldplate is completed.
Composite solid cooling medium in the present embodiment is Cr2O3:45-47%, SiO2:1-2%, CaO:0.5-1%, FeO:20-30%, MgO:10-15%; AL2O3:10-20%; All the other compositions are granularities is 70-100 object carbon dust.
The slag forming agent of the present embodiment comprises the calcium oxide of 80-85% and the magnesia of 10-15%.Slag forming agent additional proportion is 1kg/ ton copper water.
In the present embodiment, Antaciron block composition is 15-20% rare earth element, 20-30% silicon, 50-65% metallic iron.
The addition 0.1-0.7kg/ ton copper water of Antaciron block in the present embodiment.
Liquid cooling medium in the present embodiment, its flow velocity is 1-10m/s.
Composite solid cooling medium in the present embodiment, its addition is: 1-10kg/ ton copper water.
Specific in the present embodiment, the cross section of cooling water pipe is oval, and the minor axis of described ellipse and the length ratio of major axis are 0.5 ~ 0.7; Cooling water pipe is many, described Copper substrate and the external cast steel plate part of Copper substrate are matched by " dovetail " and " dovetail groove " and realize physical connection, and Copper substrate and the external cast steel plate partial reinforment of Copper substrate have employed the bimetallic complex method of the mechanical performance can strengthening Copper substrate.
The present invention can effectively avoid cooling water pipe to deform in casting process or burn through; Avoid producing air gap between cooling plate base body and cooling water pipe; Avoid cooling water pipe that complete remelting and perfect recrystallization occur in casting process, destroy the original rolling performance of cooling water pipe; Accurately realize the micro-molten of cooling water pipe outer surface, solve cooling water pipe burn through and inner surface problem of oxidation in casting process, extend the life-span of coldplate life-span and then prolongation high temperature kiln, save production cost; Steel cooling water pipe and copper cooling plate base body are combined closely, improves the non-deformability of coldplate; Control solidi fication mode, realizes consecutive solidification, improves the mechanical performance of novel coldplate; Adopt the mode of bimetallic compound, enhance the mechanical performance of Copper substrate.
Claims (10)
1. a bimetallic strengthening coldplate production method for the built-in steel pipe of Copper substrate, is characterized in that it comprises the steps:
The first, using oxygen-free copper as matrix and the steel pipe be cast in matrix through rolling: (1), adopt intermediate frequency furnace copper smelting water, in copper smelting water latter stage, a point secondary adds slag forming agent, makes its uniform fold at copper water surface; (2), before Tong Shui comes out of the stove, in induction furnace, disposable interpolation granularity is the Antaciron block of 30-40mm, and the mode adopting machinery to spray into is added; (3), prepare composite solid cooling medium, after preparing, by composite solid cooling medium under atmospheric environment, carry out high temperature sintering, calcination temperature controls at 900-1300 DEG C, removes the adhesive sintering block into; (4) liquid cooling medium of reusable edible, is equipped with; (5), by the U-shaped cooling water pipe obtained with rolled steel tube put into cast model on request, at the two ends of U-shaped cooling water pipe by the external high-pressure hydraulic pump of resistant to elevated temperatures flexible pipe, the pressure of high-pressure hydraulic pump is 5-15Mpa; Before the cast of copper water, in U-shaped cooling water pipe, pass into the liquid cooling medium of circulation in advance, in copper water casting process, composite solid cooling medium is joined in the liquid cooling medium of circulation, to ensure that U-shaped cooling water pipe surface is micro-molten; (6), with the copper water adding Antaciron block pour into a mould cooling plate base body, be cast in cooling plate base body by the middle part of U-shaped cooling water pipe, two ends are stretched out in matrix, control the copper water degree of superheat 40-80 DEG C of scope; (7), in modeling process, allow and pour into a mould model accumbency, rising head lays particular stress on side moulding, by padded for model rising head side after model mould assembling, makes rigid flask become 10-15 degree with ground; In casting process, adopt upper and lower two-layer ingate to carry out ladder cast, two-layer ingate be spaced apart 10-50cm, control the process of setting of novel coldplate accordingly, impel its formed consecutive solidification; (8), cool, lay down model, novel coldplate is made.
The second, the cast steel plate part that worked copper matrix is external: (1), adopt intermediate frequency furnace smelting molten steel water, in smelting molten steel latter stage, a point secondary adds slag forming agent, makes its uniform fold at copper water surface; (2), before molten steel is come out of the stove, in induction furnace, disposable interpolation granularity is the Antaciron block of 30-40mm, and the mode adopting machinery to spray into is added; (3), merge the advantage of the cast of secondary ladder and inclined casting, namely in modeling process, allow the accumbency of cast model, rising head lays particular stress on side moulding, by padded for model rising head side after model mould assembling, makes rigid flask become 10-15 degree with ground; In casting process, adopt upper and lower two-layer ingate to carry out ladder cast (being spaced apart 10-50cm of two-layer ingate), control solidi fication process accordingly, impel it to form consecutive solidification; (4), cool, lay down model, the part of the external cast steel plate of the Copper substrate completed.
Three, the Copper substrate of cast-ining steel pipe and the external cast steel plate part of Copper substrate are assembled: part of cast-ining steel pipe in the above-mentioned Copper substrate completed is preheating to 500-650 DEG C by (1), warm needs to complete in the heating furnace of good seal, heating furnace needs to pass into argon purge before intensification, and argon gas amount is 1.5-2 times of heating furnace dischargeable capacity.In heating process, heating furnace domestic demand continues to pass into circulation argon gas, and argon flow amount is 10-30L/min per minute, and heating rate need control at 5-10 DEG C/min; (2) after reaching preheat temperature, the part of cast-ining steel pipe in Copper substrate is taken out in heating furnace, " dovetail groove " of part of being cast-ined steel pipe in Copper substrate by the external cast steel plate of Copper substrate with " dovetail " inserts, after insertion, the coldplate after assembling is sent into heating furnace as early as possible, in heating furnace, progressively cool to less than 100 DEG C, take out and be cooled to room temperature; (3) after being cooled to room temperature, in the space of dovetail groove, pour into carbon element ramming mass and ramming is closely knit, make above-mentioned two parts close contact; (4) production of novel coldplate is completed.
2. the bimetallic strengthening coldplate production method of the built-in steel pipe of a kind of Copper substrate according to claim 1, it is characterized in that: described composite solid cooling medium is Cr2O3:45-47%, SiO2:1-2%, CaO:0.5-1%, FeO:20-30%, MgO:10-15%; AL2O3:10-20%; All the other compositions are granularities is 70-100 object carbon dust.
3. the bimetallic strengthening coldplate production method of the built-in steel pipe of a kind of Copper substrate according to claim 1, is characterized in that: described slag forming agent, comprising the calcium oxide of 80-85% and the magnesia of 10-15%.
4. the bimetallic strengthening coldplate production method of the built-in steel pipe of a kind of Copper substrate according to claim 1 or 3, it is characterized in that: described slag forming agent, its additional proportion is 1kg/ ton copper water.
5. the bimetallic strengthening coldplate production method of the built-in steel pipe of a kind of Copper substrate according to claim 1, it is characterized in that: described Antaciron block, its composition is 15-20% rare earth element, 20-30% silicon, 50-65% metallic iron.
6. coldplate production method strengthened by the bimetallic of the built-in steel pipe of a kind of Copper substrate according to claim 1 or 5, it is characterized in that: described Antaciron block, its addition 0.1-0.7kg/ ton copper water.
7. the bimetallic strengthening coldplate production method of the built-in steel pipe of a kind of Copper substrate according to claim 1, it is characterized in that: described liquid cooling medium, its flow velocity is 1-10m/s.
8. the bimetallic strengthening coldplate production method of the built-in steel pipe of a kind of Copper substrate according to claim 1 or 7, it is characterized in that: described composite solid cooling medium, its addition is: 1-10kg/ ton copper water.
9. the bimetallic strengthening coldplate production method of the built-in steel pipe of a kind of Copper substrate according to claim 1, is characterized in that: the cross section of described cooling water pipe is for oval, and the minor axis of described ellipse and the length ratio of major axis are 0.5 ~ 0.7.
10. the bimetallic strengthening coldplate production method of the built-in steel pipe of a kind of Copper substrate according to claim 1, it is characterized in that: described cooling water pipe is many, described Copper substrate and the external cast steel plate part of Copper substrate are matched by " dovetail " and " dovetail groove " and realize physical connection, and Copper substrate and the external cast steel plate partial reinforment of Copper substrate have employed the bimetallic complex method of the mechanical performance can strengthening Copper substrate.
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| CN201310674060.7A CN104707973A (en) | 2013-12-11 | 2013-12-11 | Bi-metal reinforcement cooling plate production method of internally installing copper pipe in copper matrix |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106238708A (en) * | 2016-08-23 | 2016-12-21 | 张家港华日法兰有限公司 | A kind of anti-fracture flange production method |
| CN111148585A (en) * | 2017-09-29 | 2020-05-12 | Zf腓特烈斯哈芬股份公司 | Casting with casting pipe and method for producing the same |
| CN113560536A (en) * | 2021-07-30 | 2021-10-29 | 共享装备股份有限公司 | Casting deformation prevention device |
-
2013
- 2013-12-11 CN CN201310674060.7A patent/CN104707973A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106238708A (en) * | 2016-08-23 | 2016-12-21 | 张家港华日法兰有限公司 | A kind of anti-fracture flange production method |
| CN111148585A (en) * | 2017-09-29 | 2020-05-12 | Zf腓特烈斯哈芬股份公司 | Casting with casting pipe and method for producing the same |
| CN113560536A (en) * | 2021-07-30 | 2021-10-29 | 共享装备股份有限公司 | Casting deformation prevention device |
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Application publication date: 20150617 |