CN104532236B - Nuclear power plant voltage stabilizer cylinder electric smelting manufacturing process - Google Patents
Nuclear power plant voltage stabilizer cylinder electric smelting manufacturing process Download PDFInfo
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- CN104532236B CN104532236B CN201410617473.6A CN201410617473A CN104532236B CN 104532236 B CN104532236 B CN 104532236B CN 201410617473 A CN201410617473 A CN 201410617473A CN 104532236 B CN104532236 B CN 104532236B
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- 238000003723 Smelting Methods 0.000 title claims abstract description 89
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 29
- 239000003381 stabilizer Substances 0.000 title claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 139
- 239000002994 raw material Substances 0.000 claims abstract description 32
- 238000007493 shaping process Methods 0.000 claims abstract description 19
- 229910052751 metal Inorganic materials 0.000 claims abstract description 14
- 239000002184 metal Substances 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 13
- 239000002893 slag Substances 0.000 claims abstract description 10
- 239000000758 substrate Substances 0.000 claims abstract description 8
- 230000008018 melting Effects 0.000 claims abstract description 7
- 238000002844 melting Methods 0.000 claims abstract description 7
- 238000009825 accumulation Methods 0.000 claims abstract description 6
- 238000010891 electric arc Methods 0.000 claims abstract description 6
- 238000007711 solidification Methods 0.000 claims abstract description 6
- 230000008023 solidification Effects 0.000 claims abstract description 6
- 238000001816 cooling Methods 0.000 claims abstract description 5
- 239000002131 composite material Substances 0.000 claims abstract description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 7
- 239000010935 stainless steel Substances 0.000 claims description 6
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 5
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 5
- 239000010962 carbon steel Substances 0.000 claims description 5
- 238000003754 machining Methods 0.000 claims description 5
- 239000000155 melt Substances 0.000 claims description 2
- 230000000717 retained effect Effects 0.000 claims 1
- 239000010410 layer Substances 0.000 description 18
- 238000000151 deposition Methods 0.000 description 10
- 230000008021 deposition Effects 0.000 description 10
- 238000005242 forging Methods 0.000 description 9
- 239000000203 mixture Substances 0.000 description 6
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- 238000005516 engineering process Methods 0.000 description 4
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- 239000000843 powder Substances 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 210000003625 skull Anatomy 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
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- 238000005496 tempering Methods 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
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- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 description 1
- 229910001634 calcium fluoride Inorganic materials 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
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- 229910000734 martensite Inorganic materials 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
- B22F3/105—Sintering only by using electric current other than for infrared radiant energy, laser radiation or plasma ; by ultrasonic bonding
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C26/00—Coating not provided for in groups C23C2/00 - C23C24/00
- C23C26/02—Coating not provided for in groups C23C2/00 - C23C24/00 applying molten material to the substrate
Abstract
The present invention provides a kind of efficient, low cost, the nuclear power plant voltage stabilizer cylinder electric smelting manufacturing process with excellent mechanical performances.In the method, electric smelting head is connected to two poles with base material, raw metal silk material delivers to substrate surface via conveying mechanism and electric smelting head during shaping, under the accumulation protection of graininess auxiliary material, electric arc is produced between raw material silk material and base material, melt portions heap applies auxiliary material and forms melting slag bath, electric current flows through raw material silk material and melting auxiliary material slag bath forms resistance heat and electroslag heat, in arc heat, resistance heat, raw material silk material is melted under electroslag three kinds of hot composite high-energy Sources of heat, local molten bath is formed in substrate surface, continue transferring raw material silk material and auxiliary material, hierarchy slicing data according to formed parts, using computer controls electric smelting head and the relative movement of base material, realize that molten bath quick cooling Layer by layer solidification on base material is piled up, final successively stack shaping voltage-stablizer cylinder.
Description
Technical field
The present invention relates to a kind of nuclear power plant voltage stabilizer cylinder electric smelting manufacturing process.
Background technology
Voltage-stablizer is one of nucleus equipment in one loop of nuclear power station system, is the crucial structure for stablizing primary Ioops pressure and temperature
Part.It is more and more high to voltage-stablizer equipment and materials preparation technology requirement with nuclear power working environment and ultimate attainment safety requirements.
If lay-by material takes ASME standard SA508Gr3Cl2 or RCC-M standard 18MnD5 Hi-Stren steels (China
Correspondence standard 20MnMoNi), to ensure material quality requirement, current voltage-stablizer barrel components are coiling welded all by original steel plate
It is changed to forging, and subsequent heat treatment and the final shaping of machining.By taking AP1000 as an example, whole voltage-stablizer main part is divided into 5
Material members, wherein cylinder part point 3 additional upper low heads in part, the separately fabricated rear integral assembly welding of each several part.
Typical material undergo on the basis of forging Q-tempering heat treatment (also suffered in the middle of general once even more than
Normalizing and tempering is heat-treated, and is used to spread residual hydrogen, and crystal grain thinning is that finished heat treatment is prepared), intensity can be obtained and toughness is comprehensive
Close the tempered martensite material structure of superior performance.The method is widely used aborning, it is also possible to meet quality requirement, but
Easily there is macroscopic material phase constitution very not when being especially heat-treated in the demand of the material components monomer for gradually increasing, forging
Uniform the problems such as.Complex process, chemistry are big with mechanical property control difficulty, also result in that quality stability is poor, and percent defective is high.Simultaneously
Estimate in terms of result from the final crystal grain of the technique, it is general only at 5-7 grades or so, in current development ＆ production it is desired pass through into
Step refining crystal grain improves the purpose of mechanical property especially intensity and toughness combination property, and the technique has very big bottleneck.
In addition, voltage-stablizer equipment using segmentation material forging and welding composition by the way of, isolated mechanical fiber
Continuous trend, the mechanical property of strong influence material and the security of tankage.And also easily cause manufacturing schedule to be dragged
Prolong, increased cost.
Therefore, fine grain needed for how developing voltage-stablizer, organize, and the good material of comprehensive mechanical property
It is the difficult point and important development direction that the research and development of such new material need to be captured with integral forming method.
The content of the invention
In view of this, it is a primary object of the present invention to, there is provided it is a kind of efficiently, low cost, with excellent mechanical performances
Nuclear power plant voltage stabilizer cylinder electric smelting manufacturing process.
To reach above-mentioned purpose, nuclear power plant voltage stabilizer cylinder electric smelting manufacturing process of the invention is using arc heat, resistance
The high energy thermal source that heat, electroslag heat are composited, melts the raw metal silk material of continuous conveying, and Layer by layer solidification is piled on base material
Shape makes hardware；
Electric smelting head is connected to two poles with base material, raw metal silk material is delivered to via conveying mechanism and electric smelting head during shaping
Substrate surface, under the accumulation protection of graininess auxiliary material, produces electric arc, melt portions heap to apply auxiliary material shape between raw material silk material and base material
Into melting slag bath, electric current flows through raw material silk material and melting auxiliary material slag bath forms resistance heat and electroslag heat, arc heat, resistance heat,
Raw material silk material is melted under electroslag three kinds of hot composite high-energy Sources of heat, local molten bath is formed in substrate surface, lasting conveying
Raw material silk material and auxiliary material, the hierarchy slicing data according to formed parts, using computer controls electric smelting head and the relative shifting of base material
It is dynamic, realize that molten bath quick cooling Layer by layer solidification on base material is piled up, finally successively stack shaping voltage-stablizer cylinder.
In the present invention, required according to different nuclear power generating sets, 2-3 meters, length 3-12 meters of the voltage-stablizer barrel diameter of shaping.
In the present invention, the low-alloy steel material that raw materials used silk material is the special preparation for voltage-stablizer component is shaped, it is former
Material silk material diameter 2-8mm, C content 0.11-0.15%, workpiece C content 0.05-0.10% after shaping, 9-10 grades of workpiece grain size.
In the present invention, the electric current in power parameter is 200A~2000A, and voltage is 20V~50V, and power supply can be straight
Stream or AC power, when using dc source, electric smelting head can connect negative or positive electrode.
In the present invention, control base material or deposit preheating with interlayer temperature be 120~450 DEG C, electric smelting head and base material
Relative moving speed be 300~800mm/min, realize the rapid solidification in molten bath, thus obtain crystal grain it is fine and closely woven, without it is macroscopical partially
Analysis, the material of even tissue, greatly improve the mechanical properties such as plasticity, toughness and the high-temerature creep of Forming Workpiece.
In the present invention, during successively shaping, raw material thread forms molten bath on lower metal surface, and molten drop is with jet
Form makes double layer of metal form one into solidification behind molten bath, realizes layering shaping, overall fusion, it is ensured that form metal component
Overall performance.
In the present invention, single electric smelting head is 20~50Kg/h to raw material silk material melting efficiency, is imitated to improve accumulation in addition
Rate realizes Quick-forming, and the quantity of electric smelting head can on demand be adjusted to 1~100, when many electric smelting head is arranged, adjacent electric smelting
Head spacing is 50~500mm.
In the present invention, the base material can be cylindric or cylindric, and wall thickness is not less than 5mm.(its axis) level is matched somebody with somebody
Put, realize successively piling up in the relative movement that base material is axially and radially gone up by controlling rotation and the electric smelting head of base material.Base material
Can be 308 stainless steel materials or carbon steel or alloy steel material, when for 308 stainless steel material, can be used as foreign material
Connection synthesis workpiece, can remove when being carbon steel or alloy steel material in follow-up machining.
The present invention has broken away from the constraint of the frock, mould and specific purpose tool of complexity；Shaping is near net-shaped blank, after production
Only need on a small quantity finish, greatly simplify manufacturing procedure, shorten production life cycle；Workpiece formed thereby has the conventional forging process that matches in excellence or beauty
Mechanics and chemical property, the performance such as intensity, toughness, anti-corrosion are very prominent；The monolithic molding of voltage-stablizer cylinder is realized simultaneously,
The limitation of conventional forging process technology is breached, efficiency is substantially increased, cost is saved.
Brief description of the drawings
Figure 1A is the schematic diagram for illustrating the electric smelting manufacturing process in specific embodiment；
Figure 1B is the partial enlarged drawing near position shown in A in Figure 1A；
Fig. 2 is the schematic diagram for illustrating the voltage-stablizer cylinder manufacturing process in embodiment.
Specific embodiment
Specific embodiment of the invention is illustrated with reference to the accompanying drawings.Figure 1A is for illustrating specific embodiment
In electric smelting manufacturing process schematic diagram；Figure 1B is the partial enlarged drawing near position shown in A in Figure 1A.Due to being schematic diagram,
Thus, part is schematical in figure, and its true form is not limited by the illustration with size relationship.
The manufacturing process is to melt and successively (being the state being accumulated to during n-th layer shown in Fig. 1) accumulation raw material silk material 1
On basic material 2, so as to ultimately form required hardware.
Operation is embodied is：
A. wire feeder 5 is delivered to the surface of the base material 2 being positioned on workbench 21 by raw material silk material 1, is covered thereon by sending
The graininess auxiliary material of the conveying of powder mechanism 4.
B. startup power supply 12, supply voltage makes to be formed between raw material silk material 1 and base material 2 electric arc 9 and produces the arc heat, arc heat to make
Partial supplementary material 3 is melted, and forms auxiliary material slag bath 8, and electric current flows through raw material silk material 1 and forms resistance heat via electric smelting first 6, and by melting
Slag bath 8 forms electroslag heat, and three kinds of thermals source are composited high energy thermal source, and melt raw material silk material forms molten bath 11 on the surface of base material 2.
C. relative movement of the control electric smelting first 6 with base material 2 and the temperature of base material 2, realize that molten bath 11 exchanges heat with base material and solidify
Deposition.
D. wire feeder 5 continues transferring raw material silk material 1 and auxiliary material 3 with powder feeding mechanism 4, and molten bath 11 and base are covered in auxiliary material 3
In the state of material 2, raw material silk material 1 is successively deposited on base material 2, final Forming Workpiece.
Wherein, (numerical simulation, Mathematical Modeling) the hierarchy slicing data control of control device (computer) according to Forming Workpiece
Electric smelting processed first 6 and the relative movement mode of base material 2.
Electric smelting tip electrode connects just in present invention diagram, and workpiece connects to bear only makees signal effect, it is also possible to which electric smelting head connects negative, work
Part connects just, or takes AC power.
In the present invention, good high energy thermal source is formed in order to ensure, especially for producing sufficient electroslag heat, can be with
Suitably adjust the parameters such as relative moving speed of composition, the diameter of raw material silk material, electric current, base material and raw material silk material of auxiliary material.
In the present invention, the form of raw material thread 1 can be pole shape, banding, real core or medicine core；Raw material thread 1 it is straight
Footpath can be dimensioned so as to 2~8mm according to Forming Workpiece；Different according to the diameter of silk material 1, the length for stretching out electric smelting head (is powered
Length) it is 20mm~150mm.
In the present invention, the cladding thickness of auxiliary material 3 is 15mm~120mm, and the effect using auxiliary material 3 includes：Covering electric arc 9,
Prevent electric arc from splashing；Covering molten bath 11, completely cuts off air, makes molten pool metal from the infringement of oxygen, nitrogen, hydrogen etc. in air；To molten bath
Metal forms insulation；The removal of impurity is gone during metallurgical reaction, alloy is mixed；The slag bath 8 (skull 7) of formation is mechanically protected
The well shaping etc. of deposited metal 10.
The composition of auxiliary material 3 includes oxide or oxide and halide, because auxiliary material 3 participates in melt tank reaction, adjusts work
Part (hardware, product) composition, thus according to the composition and efficiency requirements of the hardware to be formed, can be in auxiliary material
Addition alloy powder and/or elemental metals powder, reduce production cost.
In addition, in C operations, the behaviour for reclaiming the skull 7 that remaining auxiliary material and removal slag bath 8 solidify and formed can be attached
Make.During removal, machine removal can be started at the relative movement rear 400mm~500mm of raw material thread 1 or artificial removal makees
Industry.
Using the electric smelting manufacturing process of present embodiment, raw material thread utilization rate is close to 100%；Compared to existing process technology
(forging, casting etc.), manufacturing process is few (heat treatment that need not be complicated), cycle is short, efficiency high, the machining of hardware
Surplus is very small, while reducing the finishing time and having saved substantial amounts of material.
【Embodiment】
The description of this example makes the monolithic molding mistake of CAP1400 nuclear power voltage-stablizer cylinders by the molten manufacturing process of Horizontal electric
Journey, 308 stainless steel layers of the cylinder inboard wall built-up welding thickness about 8mm in traditional handicraft, voltage-stablizer cylinder wall thickness about 125mm is made
Equipment includes：
(1) revolving support platform；
(2) electric smelting power supply；
(3) electric smelting head；
(4) automatic wire feeding device；
(5) auxiliary material automatic transport and auxiliary material automatic recycling device；
(6) heater；
(7) cooling device；
(8) base material；
(9) CCU.
Fig. 2 is to schematically illustrate figure for represent the electric smelting manufacturing process of the present embodiment, and power supply, automatic is eliminated in figure
The devices such as wire feeder.Material power parameter is as follows：
1) (the C of raw material silk material 101:0.12-0.14%, other elements are consistent with SA508-3), diameter 4mm；
2) auxiliary material 301 of special development, composition is 29.5%CaO+MgO；30%Al2O3+MnO；20.5%SiO2+TiO；
20%CaF2；
3) electric smelting head quantity：39 electric smelting first 601, electric smelting power supply is dc source, and connecing power supply using electric smelting first 601 bears
Pole, base material 201 connects positive source；
4) electric smelting technological parameter is：Electric smelting electric current 800A, electric smelting voltage 38V, electric smelting first 601 is relatively moved with base material 201
500~600mm/min of speed (molten bath translational speed).
Annular metal member is made using hardware electric smelting manufacturing process, implementation step is as follows：
(1) axis horizontal of columnar base material 201 is configured, and is supported on revolving support platform, by 39 electric smelting heads
The top of base material 201 is arranged in spacing (CCU determines exact position and movement) average transverse of about 300mm, and
The distance of each electric smelting head and the surface of base material 201 (outer peripheral face) is adjusted, and chooses the starting point of electric smelting；
(2) raw material silk material 101 and auxiliary material are delivered into the surface of base material 201, startup power supply imports high energy thermal source, melt raw material
Silk material and auxiliary material, while rotate base material 201, (each layer is by the multiple tracks that axially arranges to start first of ground floor of each electric smelting head
Constitute) electric smelting deposition；
(3) after a segment distance is formed between electric smelting first 601 and electric smelting starting point, start to start auxiliary material retracting device by it not
The auxiliary material of fusing is withdrawn, and exposes skull and is removed, and (accumulation) is deposited in order to lower electric smelting together；Subsequent start-up cooling dress
Put or heater is cooled down or heated to electric smelting deposited metal, (refer to base material 201, other layers during ground floor by its matrix
When refer to preceding layer deposit) temperature control at 200~300 DEG C；
(4) when base material 201 rotates a circle completes first electric smelting deposition, under control of the control means, all electric smelting
First 201 turn left the molten road width distance of rectilinear movement 3/4 simultaneously, while adjusting between each electric smelting first 601 and the surface of base material 201
Distance, to ensure the stability of electric smelting, starts the electric smelting deposition formation of ground floor second afterwards, to ensure that it is left during this
Overlapped between You Quan roads good；
(5) after the completion of second, repeat step (4) completes the shaping that other electric smelting deposit road again, last when reaching
At one, last one end point of its adjacent electric smelting head will be overlapped well with first starting point, so that complete the electricity of ground floor
Molten deposition；
(6) after the electric smelting for completing ground floor is deposited, all electric smelting head one layer of deposit thickness of automatic lifting (i.e. after layer) it
Highly, first electric smelting deposition of the second layer is started, the end point of ground floor electric smelting head is the starting point of first of the second layer,
Successive sedimentation；
(7) after the completion of first electric smelting of second layer deposition, all electric smelting heads are while the molten track pitch of rectilinear movement 3/4 of turning right
From, at the same each electric smelting head adjust automatically its distance between with base material, to ensure the stability of electric smelting, start second layer second
Electric smelting deposition, overlap joint is good between making its left and right circle road；
(8) when second layer second electric smelting deposition completion is completed, repeat step (7), then complete other electric smelting depositions
Road, when reaching last one, last one end point of its adjacent electric smelting head will be overlapped well with first starting point, so that it is complete
Electric smelting into the second layer is deposited；
(9) repeat step (6) is to step (8), then completes other electric smelting sedimentaries, during this, adjacent electric smelting sedimentary
The moving direction of electric smelting head can be with conversely, final continuous electrofusion deposits to form voltage-stablizer cylinder.
After electric smelting shaping, stainless steel substrate 201 becomes a part for voltage-stablizer cylinder, realizes foreign material and directly connects
Shape is connected into, so as to change traditional handicraft after SA508-3 cylinders are forged again in the manufacturer of its stainless steel of inner wall overlaying 308
Formula, reduces technique process, improves operating efficiency and quality, it is also possible to which ordinary carbon steel is removed in follow-up machining.
According to conventional forging process, voltage-stablizer cylinder is divided into 3 sections (three sections of upper, middle and lowers), respectively forging again integral assembly welding and
Into, and the present embodiment greatly improves forming efficiency due to being multiple (39) electric smelting monolithic moldings arranged side by side；It is natural
Electric smelting head quantity and arrangement, sectional forming can also be adjusted according to customer requirement.
Claims (7)
1. a kind of nuclear power plant voltage stabilizer cylinder electric smelting manufacturing process, it is characterised in that:
The method is the high energy thermal source being composited using arc heat, resistance heat, electroslag heat, melts the raw metal of continuous conveying
Silk material, the Layer by layer solidification stack shaping manufacture hardware on base material；
Electric smelting head is connected to two poles with base material, raw metal silk material delivers to base material via conveying mechanism and electric smelting head during shaping
Surface, under the accumulation protection of graininess auxiliary material, produces electric arc, melt portions heap to apply auxiliary material and form molten between raw material silk material and base material
Melt slag bath, electric current flows through raw material silk material and melting auxiliary material slag bath forms resistance heat and electroslag heat, in arc heat, resistance heat, electroslag
Raw material silk material is melted under hot three kinds of hot composite high-energy Sources, local molten bath is formed in substrate surface, continue transferring raw material
Silk material and auxiliary material, the hierarchy slicing data according to formed parts, using computer controls electric smelting head and the relative movement of base material, reality
Existing molten bath quick cooling Layer by layer solidification on base material is piled up, finally successively stack shaping voltage-stablizer cylinder；
Workpiece C content 0.05-0.10% after shaping, 9-10 grades of workpiece grain size；
Substrate material is 308 stainless steels or ordinary carbon steel or other steel alloys, when for 308 stainless steel, component shaping rear substrate
Retained as a Forming Workpiece part, when for ordinary carbon steel or other steel alloys, removed in follow-up machining.
2. nuclear power plant voltage stabilizer cylinder electric smelting manufacturing process according to claim 1, it is characterised in that：
Different according to nuclear power generating sets type, the voltage-stablizer barrel diameter of shaping is 2-3m, length 3-12m.
3. nuclear power plant voltage stabilizer cylinder electric smelting manufacturing process according to claim 1, it is characterised in that：
Raw material silk material is marked according to 18MnD5 material standards in SA508Gr3Cl2 material standards in ASME or RCC-M or other correspondences
Prepared by standard, silk material diameter 2-8mm, C content 0.11-0.15%.
4. nuclear power plant voltage stabilizer cylinder electric smelting manufacturing process according to claim 1, it is characterised in that：
Different according to silk material diameter, the electric current in power parameter is 200A~2000A, and voltage is 20V~50V, and power supply is direct current
Or AC power, when using dc source, electric smelting head connects negative or positive electrode.
5. nuclear power plant voltage stabilizer cylinder electric smelting manufacturing process according to claim 1, it is characterised in that:
Required according to Forming Workpiece, base material or deposit are heated or cooled, the table of control base material or deposit layer
Face temperature is 120 ~ 450 DEG C.
6. nuclear power plant voltage stabilizer cylinder electric smelting manufacturing process according to claim 1, it is characterised in that：
According to voltage-stablizer formed parts size and efficiency requirements, the quantity set of electric smelting head is 1~100, many electric smelting head arrangements
When, adjacent electric smelting head spacing is 50~500mm.
7. nuclear power plant voltage stabilizer cylinder electric smelting manufacturing process according to claim 1, it is characterised in that:
The base material for Forming Workpiece provide frock support, be shaped as it is cylindric or cylindric, wall thickness be not less than 5mm.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410617473.6A CN104532236B (en) | 2014-11-04 | 2014-11-04 | Nuclear power plant voltage stabilizer cylinder electric smelting manufacturing process |
| PCT/CN2015/093637 WO2016070779A1 (en) | 2014-11-04 | 2015-11-03 | Electric melting method for forming nuclear power plant voltage regulator cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN104532236B (en) * | 2014-11-04 | 2017-05-31 | 南方增材科技有限公司 | Nuclear power plant voltage stabilizer cylinder electric smelting manufacturing process |
| CN104526115B (en) * | 2014-11-04 | 2017-01-18 | 南方增材科技有限公司 | Electric smelting forming method for nuclear power station pressure vessel shell |
| CN104526171B (en) * | 2014-11-04 | 2016-10-12 | 南方增材科技有限公司 | Hardware electric smelting manufacturing process |
| CN106466766A (en) * | 2016-08-31 | 2017-03-01 | 南方增材科技有限公司 | Nuclear power plant voltage stabilizer cylinder electric smelting manufacturing process |
| CN106466765A (en) * | 2016-08-31 | 2017-03-01 | 南方增材科技有限公司 | The electric smelting manufacturing process of ultra supercritical low pressure rotor |
| CN106466753A (en) * | 2016-08-31 | 2017-03-01 | 南方增材科技有限公司 | Nuclear plant pressure vessels cylinder electric smelting manufacturing process |
| CN106378540A (en) * | 2016-08-31 | 2017-02-08 | 南方增材科技有限公司 | Electric smelting forming method for nuclear power plant evaporator barrel body |
| CN106271143A (en) * | 2016-08-31 | 2017-01-04 | 南方增材科技有限公司 | CAP1400 main steam pipe penetration piece electric smelting manufacturing process |
| CN106624400A (en) * | 2016-08-31 | 2017-05-10 | 南方增材科技有限公司 | Hydrogenation reactor barrel electric-smelting forming method |
| CN108971697A (en) * | 2018-06-29 | 2018-12-11 | 中广核核电运营有限公司 | Nuclear power station SAP refrigeration machine end cap electric smelting increasing material manufacturing method |
| CN112605397A (en) * | 2020-12-17 | 2021-04-06 | 辽宁装备制造职业技术学院 | In-situ alloying method for electric arc additive manufacturing |
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| US3985995A (en) * | 1973-04-19 | 1976-10-12 | August Thyssen-Hutte Aktienges. | Method of making large structural one-piece parts of metal, particularly one-piece shafts |
| CN2590713Y (en) * | 2002-12-05 | 2003-12-10 | 上海气焊机厂 | Full-automatic roller build-up welding machine |
| CN102189316A (en) * | 2010-03-11 | 2011-09-21 | 上海一钢机电有限公司 | Submerged-arc welding overlaying repairing method for stainless steel hot rolled delivery roll |
| CN103009015A (en) * | 2013-01-13 | 2013-04-03 | 邯郸市永固冶金备件有限公司 | Method for manufacturing double metal composite wear-resistant metallurgical rollers |
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| WO2016070779A1 (en) | 2016-05-12 |
| CN104532236A (en) | 2015-04-22 |
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