Stainless steel part electrolytic polishing hanger with pictographic cathode
By designing a stainless steel electropolishing fixture with a figurative cathode, the problem of removing oxide scale during the electropolishing of stainless steel parts was solved, resulting in high gloss of the inner cavity of the parts and improved production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2026-03-03
AI Technical Summary
In the current electropolishing process for stainless steel parts, oxide scale is difficult to remove, resulting in a high rework rate, which affects part quality and production efficiency.
Design a stainless steel parts electropolishing fixture with a figurative cathode, including a main rod, handle, hook, figurative cathode, cathode titanium sheet, anode titanium sheet, and acid and alkali resistant PP plastic screws. Through specific structural welding and connection methods, ensure the targeted and insulating nature of electropolishing, and achieve high gloss in the inner cavity of the parts.
It significantly reduces the return rate, improves the gloss of the inner wall of parts and production efficiency, and has a simple structure that can be used for a long time without replacement.
Smart Images
Figure CN223963596U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to an electropolishing fixture for stainless steel parts with a pictographic cathode, which is suitable for electropolishing parts that require high brightness in their internal cavities, and belongs to the field of surface treatment technology in machining. Background Technology
[0002] A certain type of part is a cylindrical cast steel shell made of ZG09Cr16Ni4Nb. The existing process involves electrolytic polishing. During the initial casting and heat treatment, a very dense oxide scale forms on the material surface. Especially during assembly, the bottom and inner walls of the part's cavity must be bright. Using existing tooling for electrolytic polishing results in approximately 40% of the parts being reworked due to the difficulty in polishing the oxide scale, severely impacting the part's quality, first-pass yield, and production efficiency. Therefore, this invention proposes an electrolytic polishing fixture for stainless steel parts with a pictographic cathode. Utility Model Content
[0003] The purpose of this invention is to solve the problem that the high proportion of rework products during the electropolishing of stainless steel parts using existing fixtures seriously affects the quality of the parts, the first-pass yield, and production efficiency. Therefore, this invention proposes an electropolishing fixture for stainless steel parts with a pictographic cathode.
[0004] The objective of this utility model is achieved through the following technical solution.
[0005] This utility model proposes an electrolytic polishing fixture for stainless steel parts with a figurative cathode, comprising: a main rod, a handle, a hook, a figurative cathode, a cathode titanium sheet, a part retaining wire, an anode titanium sheet, and acid and alkali resistant PP plastic screws;
[0006] The main rods consist of four rods: two cathode rods and two anode rods. Two cathode rods are welded together, and then two anode rods are welded together, ensuring a distance of approximately 1 cm between the two rods. These serve as the cathode rod assembly and the anode rod assembly, respectively. A handle is welded to the top of the cathode rod assembly, and a hook is welded to the top of the anode rod assembly. Acid- and alkali-resistant PP plastic screws are used to pass through the 1 cm gap between the rods, along with nuts and washers, to connect and secure the cathode rod assembly and the anode rod assembly together, ensuring proper alignment between the cathode and anode rods. Inter-insulation; First, weld the figurative cathodes to both ends of the cathode titanium sheet, then weld them equidistantly to the cathode main rod assembly. Then, bend the two ends of the cathode titanium sheet with the figurative cathodes welded to it 90° towards the anode main rod assembly. Weld the component clamping wires to the anode titanium sheet in a 1-on-2 configuration. Weld the anode titanium sheet with the component clamping wires equidistantly to the anode main rod assembly, ensuring that each group of figurative cathodes is basically centered on the three component clamping wires. Connect one end of the wire to the conductive clamp, and pass the other end through the handle hole and fix it thereon.
[0007] Working principle
[0008] Place the cylindrical cast steel part with the opening facing inwards onto the three part clamping wires, ensuring that the shaped cathode is inside the part cavity and 5-10mm from the bottom. Hang the fixture with all parts in place on the anode rod of the stainless steel electrolytic polishing tank, and clamp the conductive clamp onto the cathode rod. Adjust the current to the process range value to start production.
[0009] Beneficial effects
[0010] The electrolytic polishing fixture proposed in this invention has a simple structure and is highly targeted, which greatly improves the quality of the inner wall of cavity parts and increases production efficiency. The fixture can be used for a long time without replacement and has significant practical value. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the structure of the electrolytic polishing fixture of this utility model;
[0012] Figure 2 This is a schematic diagram of the pictographic cathode and the cathode titanium sheet;
[0013] Figure 3 This is a schematic diagram of the structure of the component's retaining wire and the anode titanium sheet;
[0014] Figure 4 This is a front view of the electrolytic polishing fixture of this utility model;
[0015] Figure 5 This is a rear view of the electrolytic polishing fixture of this utility model;
[0016] Figure 6 This is a side view of the electrolytic polishing fixture of this utility model.
[0017] The following are the labels in the diagram: 1-Main rod, 2-Handle, 3-Hook, 4-Iconic cathode, 5-Cathode titanium sheet, 6-Parts clip, 7-Anode titanium sheet, 8-Acid and alkali resistant PP plastic screw. Detailed Implementation
[0018] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.
[0019] Example
[0020] The present invention proposes an electrolytic polishing fixture for stainless steel parts with a figurative cathode, comprising: a main rod 1, a handle 2, a hook 3, a figurative cathode 4, a cathode titanium sheet 5, a part retaining wire 6, an anode titanium sheet 7, and an acid and alkali resistant PP plastic screw 8.
[0021] The main rod 1 has four rods: two cathode rods and two anode rods. Two cathode rods are welded together, and then two anode rods are welded together, ensuring a distance of approximately 1 cm between the two rods. These serve as the cathode rod group and the anode rod group, respectively. The handle 2 is welded to the top of the cathode rod group, and the hook 3 is welded to the top of the anode rod group. Acid and alkali resistant PP plastic screws 8 are used to pass through the 1 cm gap between the rods, along with nuts and washers, to connect and fix the cathode rod group and the anode rod group together, ensuring insulation between them. First, the shaped cathode 4... Weld the cathode titanium sheet 5 to both ends respectively, and then weld it to the cathode main rod group at equal intervals. Then bend the cathode titanium sheet 5 with the shaped cathode 4 at both ends towards the anode main rod group by 90° so that the shaped cathode 4 coincides with the anode main rod group. Weld the component clamping wire 6 to the anode titanium sheet 7 in the manner of 1 wire on top and 2 wires on the bottom. Weld the anode titanium sheet 7 with the component clamping wire 6 at equal intervals to the anode main rod group to ensure that each group of shaped cathodes 4 is basically in the center of the 3 component clamping wires 6. Connect one end of the wire to the conductive clamp, and pass the other end out of the handle 2 hole and fix it thereto.
[0022] Working principle
[0023] Place the cylindrical cast steel part with the opening facing inwards onto the three part clamping wires 6, ensuring that the shaped cathode is inside the part cavity and 5-10mm from the bottom. Hang the fixture with all parts in place on the anode rod of the stainless steel electrolytic polishing tank, and clamp the conductive clamp onto the cathode rod. Adjust the current to the process range value to start production.
Claims
1. A hanger for electrolytic polishing of stainless steel parts with pictographic cathode, characterized in that, Include: Main rod (1), handle (2), hook (3), pictograph cathode (4), cathode titanium sheet (5), part card silk (6), anode titanium sheet (7), acid and alkali resistant PP plastic screw (8); The main rod (1) has four, two cathode main rods and two anode main rods, two cathode main rods are welded together, two anode main rods are welded together, and the distance between the two main rods is about 1cm when welding, which are respectively used as cathode main rod group and anode main rod group; The top of the cathode main rod group is welded with a handle (2), and the top of the anode main rod group is welded with a hook (3); The cathode main rod group and the anode main rod group are connected and fixed together by acid and alkali resistant PP plastic screw (8) through the 1cm gap between the main rods, cooperating with nut and gasket, to ensure the insulation between the cathode main rod and the anode main rod; The cathode titanium sheet (5) is welded with a pictograph cathode (4) at both ends, and the cathode titanium sheet (5) is welded with the pictograph cathode (4) on the cathode main rod group at equal intervals, and the cathode titanium sheet (5) with the pictograph cathode (4) is bent 90° towards the anode main rod group; The anode titanium sheet (7) is welded with part card silk (6), and the part card silk (6) is located at the upper end of the anode titanium sheet (7) and the lower end of the anode titanium sheet (7); The anode titanium sheet (7) with part card silk (6) is welded on the anode main rod group at equal intervals, to ensure that each pictograph cathode (4) is at the center of three part card silks (6); One end of the wire is connected with the conductive clamp, the other end is pulled out from the hole of the handle (2), and is connected with the handle (2).