Check patentability & draft patents in minutes with Patsnap Eureka AI!

Device and method for electroplating small hole in control rod drive mechanism part

A driving mechanism and control rod technology, applied in the electrolysis process, electrolysis components, cells, etc., can solve problems such as shedding, electroplating layer pitting, and failure to meet the continuous and reliable operation of CRDM, so as to reduce resistance, optimize electroplating layer quality, Rapid and efficient effect of hydrogen gas discharge and plating solution inflow

Active Publication Date: 2016-04-20
四川金岷新能源有限公司
View PDF12 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above-mentioned prior art, the electroplating layer on the inner wall of the small hole is prone to defects such as pitting, loosening, and falling off, and it is difficult to pass the high-sensitivity coloring flaw detection (PT) inspection. Although such a coating has no problems in short-term operation, it cannot meet the requirements. In view of the requirement of continuous and reliable operation of CRDM within a long service life, the present invention provides a device and method for electroplating small holes on control rod drive mechanism parts

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Device and method for electroplating small hole in control rod drive mechanism part
  • Device and method for electroplating small hole in control rod drive mechanism part

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Such as figure 1 and figure 2 As shown, a device for electroplating small holes on the parts of the control rod drive mechanism, a device for electroplating small holes on the parts of the control rod drive mechanism, including a device for fixing the electrode rod 4 on the part 1 during electroplating The positioning cap 3 on the axis of the part hole 2;

[0039] The positioning cap 3 is a cylindrical structure with a circular cross-sectional shape, and the material of the positioning cap 3 is an insulating material;

[0040] The axis of the columnar structure is provided with a central hole 32 for piercing the electrode rod 4, and the positioning cap 3 is also provided with at least two air holes 31. 31 is a through hole arranged on the positioning cap 3, and the length direction of the through hole is parallel to the axial direction of the central hole 32. The through hole is used to realize the flow of exhaust gas or / and electroplating solution during the electro...

Embodiment 2

[0052] This embodiment is further limited on the basis of Embodiment 1: as a further technical solution for the method for electroplating small holes on control rod drive mechanism parts as described above:

[0053] In order to make the driving force from the additional power act on the part 1 and / or the electroplating solution, the driving output of the additional power can be used to the greatest extent to strengthen the relative movement of the fluid at the electroplating layer and the electroplating layer. The electroplating solution and the part hole 2 The relative movement of the inner wall surface of the electroplating solution and / or the movement of the part 1 is realized by the power device, and the relative movement direction of the electroplating solution and the inner wall surface of the part hole 2 is along the axis direction of the part hole 2. The above technical limitations on the direction of relative motion and the axis direction of the component hole 2 are ai...

Embodiment 3

[0056] Such as figure 1 and figure 2 As shown, the present embodiment is further limited on the basis of embodiment 1: as a further technical solution of the above-mentioned device for electroplating small holes on control rod drive mechanism parts:

[0057] In order to make the positioning cap 3 suitable for the electroplating of the component holes 2 within a certain size range and realize the versatility of the positioning cap 3, the shape of the positioning cap 3 is truncated cone. Compared with the positioning cap 3 with a cylindrical shape, this solution can be fixed in the component hole 2 within a certain inner diameter range through an interference connection.

[0058] As a specific implementation of the positioning cap 3, the profile of the positioning cap 3 is cylindrical, and the positioning cap 3 includes an outer cylinder, an inner cylinder, and both ends are respectively connected to the inner wall surface of the outer cylinder and the outer surface of the inn...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Diameteraaaaaaaaaa
The inside diameter ofaaaaaaaaaa
Outer diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses a device and method for electroplating a small hole in a control rod drive mechanism part. In the device, a positioning cap is improved so that smooth flowing of electroplating liquid and hydrogen bubbles in a part hole cavity can be conveniently promoted, and therefore hydrogen gas produced in the electroplating process can be fast brought out of the part hole cavity through the flowing electroplating liquid or the hydrogen gas can fast escape from the part hole cavity through buoyancy of the hydrogen gas, meanwhile, outside fresh electroplating liquid can continuously flows into the part hole cavity, plenty of chromium ions are taken in, and the electroplating quality of the inner wall of the small hole can be fundamentally improved. By increasing relative movement between the electroplating liquid and the small hole, the outside fresh electroplating liquid can continuously flow into the part hole cavity, and finally the control rod drive mechanism part meeting the high-sensitivity penetrant test (PT) inspection qualified requirement is obtained.

Description

technical field [0001] The invention relates to the field of manufacturing components of a reactor control rod drive mechanism, in particular to a device and method for electroplating small holes on control rod drive mechanism parts. Background technique [0002] The reactor is the core part of the nuclear power plant, and the control rod drive mechanism (CRDM) of the reactor can lift, insert or maintain the position of the control rod in the core to control the fission rate of the reactor, realize the start and stop of the reactor and the control of the power of the reactor. Adjustment; under accident conditions, CRDM can also quickly insert control rods (rapid drop rods), so that the reactor can be shut down in a short time to ensure safety. [0003] To achieve the above functions reliably for a long time, CRDM cannot do without the hook assembly (also known as "pin claw part") which can always move very flexibly, which in turn depends on the moving contact surface of mult...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C25D7/00C25D17/00C25D21/04C25D21/10
CPCC25D7/00C25D17/00C25D21/04C25D21/10
Inventor 黄曦雨
Owner 四川金岷新能源有限公司
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com