CN108062983A - A kind of nuclear power station control rod drive mechanism hook of increasing material manufacturing - Google Patents
A kind of nuclear power station control rod drive mechanism hook of increasing material manufacturing Download PDFInfo
- Publication number
- CN108062983A CN108062983A CN201810046135.XA CN201810046135A CN108062983A CN 108062983 A CN108062983 A CN 108062983A CN 201810046135 A CN201810046135 A CN 201810046135A CN 108062983 A CN108062983 A CN 108062983A
- Authority
- CN
- China
- Prior art keywords
- increasing material
- material manufacturing
- hook
- drive mechanism
- control rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C7/00—Control of nuclear reaction
- G21C7/06—Control of nuclear reaction by application of neutron-absorbing material, i.e. material with absorption cross-section very much in excess of reflection cross-section
- G21C7/08—Control of nuclear reaction by application of neutron-absorbing material, i.e. material with absorption cross-section very much in excess of reflection cross-section by displacement of solid control elements, e.g. control rods
- G21C7/12—Means for moving control elements to desired position
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C7/00—Control of nuclear reaction
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Abstract
The present invention provides a kind of nuclear power station control rod drive mechanism hook of increasing material manufacturing, including：First axis hole；Second axis hole；And double hook tooth；Wherein, the nuclear power station control rod drive mechanism hook of the increasing material manufacturing is configured carries out increasing material manufacturing using selective laser sintering or the direct cladding of laser.The nuclear power station control rod drive mechanism hook of increasing material manufacturing provided by the invention, for stainless steel increasing material manufacturing integral structure, cobalt-base alloys is not used, thoroughly avoids secondary excitation dose of radiation, good environmental condition is provided for the maintenance and operation maintenance of reactor.And have the characteristics that manufacturing process is simple, production efficiency is high, stock utilization is high, manufacture cost is low, it can be achieved that mass production.
Description
Technical field
The present invention relates to a kind of nuclear power station control rod drive mechanism hooks of increasing material manufacturing.
Background technology
The effect of nuclear power station control rod drive mechanism (CRDM) is in vertical direction location control rod assembly.Changed by CRDM
Become or keep the position of C＆P systems, realize the work(that reactor core is adjusted or maintained in the start and stop of reactor, normal reactor operation
Rate level and the scram under accident conditions.CRDM controls hook moving component to act by electromagnetic field, final to drive
Drive rod moves.Often set CRDM is made of two groups of hooks, and every group of hook is made of 3 sets of hooks, axis pin and connecting rod.Hook is CRDM
Key components and parts, the performances such as wear-resisting, impact resistance, corrosion-resistant, high temperature resistant are to service life of CRDM and operational reliability to closing weight
It will.
At present there are mainly two types of the moulding process of hook：Monoblock cast hook and built-up welding hook.Monoblock cast hook is to adopt
With Stellite6 alloy monoblock casts, advantage is relatively simple for moulding process, and controllability is strong, is easy to produce in batches；Shortcoming is
Cobalt alloy impact resistance is poor；And generally cobalt alloy, the content of cobalt element in heap is added, easily secondary excitation is brought to radiate
Dosage is made troubles for the maintenance and operation maintenance of reactor.Built-up welding hook is on austenite stainless steel matrix (304LN) surface
Built-up welding cobalt-base alloys.Its advantage is the reduction of ingredient accounting of the cobalt element in entire product, reduces secondary excitation radiation agent
Amount, on the premise of surface abrasion resistance is ensured, has taken into account toughness.Shortcoming is that process controllability is weak, product qualification rate is low, production
Efficiency is low, manufacture is of high cost, is unfavorable for mass production.
The content of the invention
In view of the deficiencies of the prior art, the present invention proposes a kind of nuclear power station control rod drive mechanism hooks of increasing material manufacturing.
The present invention provides a kind of nuclear power station control rod drive mechanism hook of increasing material manufacturing, including：
First axis hole；
Second axis hole；And
Double hook tooth；
Wherein, the distance of plane is equal on first axis hole and the second axis hole center to hook, the double hook tooth position in
The lower section of second axis hole, the nuclear power station control rod drive mechanism hook of the increasing material manufacturing are configured using selective laser sintering
Or the direct cladding of laser carries out increasing material manufacturing.
Preferably, it is integrally formed.
Preferably, using 304L, 304LN, 316L or 316LN stainless steel.
Preferably, the selective laser sintering or the direct cladding progress increasing material manufacturing of laser comprise the following steps：
The side of hook is determined as printing reference plane, along the printing reference plane successively up printing-forming, described second
The gap portions of axis hole increase printing support, in order to printing-forming, are machined out and are surface-treated after the completion of whole printing.
Compared with prior art, the invention has the advantages that：
1st, the nuclear power station control rod drive mechanism hook of increasing material manufacturing provided by the invention is stainless steel increasing material manufacturing one
Formula structure, does not use cobalt-base alloys, thoroughly avoids secondary excitation dose of radiation, for the maintenance and operation maintenance of reactor
Good environmental condition is provided.And with manufacturing process is simple, production efficiency is high, stock utilization is high, it is low etc. to manufacture cost
Feature is, it can be achieved that mass production.
2nd, the nuclear power station control rod drive mechanism hook of increasing material manufacturing provided by the invention, is designed as increasing material manufacturing and is integrated
Formula structure, it is simple and reliable for structure.
3rd, the nuclear power station control rod drive mechanism hook of increasing material manufacturing provided by the invention, only with stainless steel material, no
Cobalt-base alloys is reused, thoroughly avoids secondary excitation dose of radiation, is provided well for the maintenance and operation maintenance of reactor
Environmental condition.
4th, the nuclear power station control rod drive mechanism hook of increasing material manufacturing provided by the invention without complex tool equipment, manufactures work
Skill is simple, process for making is stable, the manufacturing cycle is short, stock utilization is high, manufacture is at low cost, it can be achieved that mass production.
Description of the drawings
Fig. 1 is the structure diagram of built-up welding formula control rod drive mechanism hook.
Fig. 2 is the signal of the nuclear power station control rod drive mechanism hook for the increasing material manufacturing for meeting the preferred embodiment of the present invention
Figure.
Fig. 3 is the printing side of the nuclear power station control rod drive mechanism hook for the increasing material manufacturing for meeting the preferred embodiment of the present invention
Formula schematic diagram.
Wherein, one overlay cladding of 1- axis holes；2- hook matrixes；Two overlay cladding of 3- axis holes；4- double hook tooth overlay claddings；5- first axles
Hole；The second axis holes of 6-；7- double hook teeth
Specific embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, it is below in conjunction with the accompanying drawings and specific real
Applying mode, the present invention is described in further detail.
Fig. 1 is traditional built-up welding formula control rod drive mechanism hook schematic diagram, generally uses 304LN stainless steel hooks matrix 2,
Built-up welding cobalt-base alloys is distinguished at axis hole one, axis hole two, double hook tooth, forms one overlay cladding 1 of axis hole, two overlay cladding 3 of axis hole, double hook
Tooth overlay cladding 4, to increase the wearability at these moving contact positions.
As shown in Figures 2 and 3, the nuclear power station control rod drive mechanism hook of increasing material manufacturing provided by the invention is integral type knot
Comprising characteristic features such as the first axis hole 5, the second axis hole 6, double hook teeth 7, it is directly molten that selective laser sintering, laser can be used in structure
It covers and increasing material manufacturings method is waited to be manufactured.Increasing material manufacturing control rod drive mechanism hook printing type is as shown in figure 3, determine hook
Side is printing reference plane, and along reference plane, successively up printing-forming, two gap portions of axis hole increase printing support, convenient for printing
Shaping, by appropriate machining and surface treatment after the completion of whole printing, you can reach requirement.
Compared with prior art, the present embodiment has the advantages that：
1st, the nuclear power station control rod drive mechanism hook of increasing material manufacturing provided in this embodiment is stainless steel increasing material manufacturing one
Body formula structure, does not use cobalt-base alloys, thoroughly avoids secondary excitation dose of radiation, for the maintenance of reactor and operation dimension
Shield provides good environmental condition.And with manufacturing process is simple, production efficiency is high, stock utilization is high, manufacture is at low cost
The features such as, it can be achieved that mass production.
2nd, the nuclear power station control rod drive mechanism hook of increasing material manufacturing provided in this embodiment is designed as increasing material manufacturing as one
Body formula structure, it is simple and reliable for structure.
3rd, the nuclear power station control rod drive mechanism hook of increasing material manufacturing provided in this embodiment, only with stainless steel material,
Cobalt-base alloys is not used, thoroughly avoids secondary excitation dose of radiation, it is good for maintenance and the operation maintenance offer of reactor
Good environmental condition.
4th, the nuclear power station control rod drive mechanism hook of increasing material manufacturing provided in this embodiment, without complex tool equipment, manufacture
It is simple for process, process for making is stable, the manufacturing cycle is short, stock utilization is high, manufacture is at low cost, it can be achieved that batch metaplasia
Production.
Those skilled in the art can realize described function to each specific application using distinct methods, but
It is this realization it is not considered that beyond the scope of this invention.
Obviously, those skilled in the art can carry out invention spirit of the various modification and variations without departing from the present invention
And scope.If in this way, these modifications and changes of the present invention belong to the claims in the present invention and its equivalent technologies scope it
Interior, then the present invention is also intended to including these modification and variations.
Claims (4)
1. a kind of nuclear power station control rod drive mechanism hook of increasing material manufacturing, which is characterized in that including：
First axis hole；
Second axis hole；And
Double hook tooth；
Wherein, the distance of plane is equal on first axis hole and the second axis hole center to hook, and the double hook tooth position is in second
The lower section of axis hole, the nuclear power station control rod drive mechanism hook of the increasing material manufacturing are configured using selective laser sintering or swash
The direct cladding of light carries out increasing material manufacturing.
2. the nuclear power station control rod drive mechanism hook of increasing material manufacturing as described in claim 1, which is characterized in that be integrated into
Type.
3. the nuclear power station control rod drive mechanism hook of increasing material manufacturing as described in claim 1, which is characterized in that use
304L, 304LN, 316L or 316LN stainless steel.
4. the nuclear power station control rod drive mechanism hook of increasing material manufacturing as described in claim 1, which is characterized in that the selection
Property the direct cladding of laser sintered or laser carry out increasing material manufacturing and comprise the following steps：
The side of hook is determined as printing reference plane, along the printing reference plane successively up printing-forming, second axis hole
Gap portions increase printing support, in order to printing-forming, is machined out and is surface-treated after the completion of whole printing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810046135.XA CN108062983A (en) | 2018-01-17 | 2018-01-17 | A kind of nuclear power station control rod drive mechanism hook of increasing material manufacturing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810046135.XA CN108062983A (en) | 2018-01-17 | 2018-01-17 | A kind of nuclear power station control rod drive mechanism hook of increasing material manufacturing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108062983A true CN108062983A (en) | 2018-05-22 |
Family
ID=62141298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810046135.XA Pending CN108062983A (en) | 2018-01-17 | 2018-01-17 | A kind of nuclear power station control rod drive mechanism hook of increasing material manufacturing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108062983A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110860816A (en) * | 2019-12-20 | 2020-03-06 | 李文娟 | Plate for manufacturing hook claw on control rod driving mechanism and manufacturing method |
| CN108962412B (en) * | 2018-07-27 | 2021-03-26 | 中国核动力研究设计院 | Forming method of integral guide cylinder of in-pile component |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013103878A (en) * | 2011-11-10 | 2013-05-30 | Mitsubishi Chemicals Corp | Method for producing crystal and storage container |
| CN103921013A (en) * | 2014-05-07 | 2014-07-16 | 四川华都核设备制造有限公司 | Cobalt-base alloy welding wire, hook claw using welding wire, connection rod and surfacing method |
| CN104637552A (en) * | 2015-01-09 | 2015-05-20 | 李泽文 | Reactor claw-link mechanism and manufacturing method thereof |
| CN107351104A (en) * | 2017-08-10 | 2017-11-17 | 深圳中广核工程设计有限公司 | A kind of nuclear power plant's CRDM hook and preparation method thereof |
-
2018
- 2018-01-17 CN CN201810046135.XA patent/CN108062983A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013103878A (en) * | 2011-11-10 | 2013-05-30 | Mitsubishi Chemicals Corp | Method for producing crystal and storage container |
| CN103921013A (en) * | 2014-05-07 | 2014-07-16 | 四川华都核设备制造有限公司 | Cobalt-base alloy welding wire, hook claw using welding wire, connection rod and surfacing method |
| CN104637552A (en) * | 2015-01-09 | 2015-05-20 | 李泽文 | Reactor claw-link mechanism and manufacturing method thereof |
| CN107351104A (en) * | 2017-08-10 | 2017-11-17 | 深圳中广核工程设计有限公司 | A kind of nuclear power plant's CRDM hook and preparation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108962412B (en) * | 2018-07-27 | 2021-03-26 | 中国核动力研究设计院 | Forming method of integral guide cylinder of in-pile component |
| CN110860816A (en) * | 2019-12-20 | 2020-03-06 | 李文娟 | Plate for manufacturing hook claw on control rod driving mechanism and manufacturing method |
| WO2021121139A1 (en) * | 2019-12-20 | 2021-06-24 | 李文娟 | Plate and method for producing claws on a control rod drive mechanism |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: No. 29 Hong Cao Road, Xuhui District, Shanghai Applicant after: Shanghai Nuclear Engineering Research and Design Institute Co.,Ltd. Address before: No. 29 Hong Cao Road, Xuhui District, Shanghai Applicant before: SHANGHAI NUCLEAR ENGINEERING RESEARCH & DESIGN INSTITUTE Co.,Ltd. |
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| CB02 | Change of applicant information | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180522 |
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| WD01 | Invention patent application deemed withdrawn after publication |