---
title: "Electrolytic Cell Cathode Bar"
industry: "Non-Ferrous Metal Production"
verification_protocol:
  urn: "URN:CNFX:ME:ELECTROLYTIC_CELL_CATHODE_BAR"
  data_integrity_hash: "7130e9088f8331dc9cef9046624db6ec"
  source_authority: "https://cnfx.com"
  strict_mode: true
source_identity:
  provider: "CNFX Industrial Knowledge Graph"
  index_version: "2026.Q1-Universal"
  authority_id: "URN:CNFX:ME:ELECTROLYTIC_CELL_CATHODE_BAR"
  data_source_uri: "https://cnfx.com/llms/industry/non-ferrous-metal-production/product/electrolytic-cell-cathode-bar.md"
  official_resource_url: "https://cnfx.com/industry/non-ferrous-metal-production/product/electrolytic-cell-cathode-bar"
  is_verified_logic: true
attributes:
  primary_spec:
    status: "config-dependent"
    typical_range: "Current density: 200-450 A/m², Temperature: 60-85°C, Voltage drop: 0.8-1.5 V per bar"
    unit: "mm"
  secondary_spec:
    status: "config-dependent"
    typical_range: "Current density: 200-450 A/m², Temperature: 60-85°C, Voltage drop: 0.8-1.5 V per bar"
    unit: "A"
engineering_limits:
  max_safe_operating_point:
    value: 500
    unit: "A"
    consequence: "Electrochemical polarization at current densities exceeding 500 A/m² creates copper dendrites that short-circuit cathode plates. Thermal expansion mismatch between copper bar (α=16.5×10⁻⁶/K) and steel mounting causes stress &gt; 250 MPa at ΔT&gt;35°C."
fmea_matrix_quantitative:
  - node_1:
      trigger: "Current density exceeding 500 A/m² for &gt;2 hours"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Install current density monitoring with automatic cell voltage adjustment at 480 A/m² threshold"
  - node_2:
      trigger: "Thermal cycling ΔT&gt;35°C between 60-95°C"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Implement expansion joints with Invar alloy (α=1.2×10⁻⁶/K) inserts at mounting points"
bom_nodes:
  bar-body:
    type: "component"
    urn: "URN:CNFX:ME:BAR_BODY"
    interface_type: "physical-logic-coupled"
  connection-lug:
    type: "component"
    urn: "URN:CNFX:ME:CONNECTION_LUG"
    interface_type: "physical-logic-coupled"
  cathode-plate-clamp:
    type: "component"
    urn: "URN:CNFX:ME:CATHODE_PLATE_CLAMP"
    interface_type: "physical-logic-coupled"
  insulation-sleeve:
    type: "component"
    urn: "URN:CNFX:ME:INSULATION_SLEEVE"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 9001:2015 - QUALITY MANAGEMENT SYSTEMS"
    scope: "Verified Engineering Specification"
  - standard: "CE MARKING - EU DIRECTIVE 2014/68/EU (PRESSURE EQUIPMENT DIRECTIVE)"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/non-ferrous-metal-production/product/electrolytic-cell-cathode-bar.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "0de620ad117363c7543c4ef4973ab6ed6adb06fc8b7afaf9df2ee40ab4f9f29b"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Electrolytic Cell Cathode Bar

## 1. Technical Definition
Conductive bar connecting cathode plates in non-ferrous metal electrolysis cells.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **Current density: 200-450 A/m², Temperature: 60-85°C, Voltage drop: 0.8-1.5 V per bar**. Failure boundary: **Current density &gt; 500 A/m² causes dendritic growth, Temperature &gt; 95°C initiates copper dissolution, Voltage drop &gt; 2.0 V indicates excessive resistance**, Mechanism: **Electrochemical polarization at current densities exceeding 500 A/m² creates copper dendrites that short-circuit cathode plates. Thermal expansion mismatch between copper bar (α=16.5×10⁻⁶/K) and steel mounting causes stress &gt; 250 MPa at ΔT&gt;35°C.**.

### 2.1 Analytical Physics Model
Governed by the **Hansen Solubility Distance (HSP)**:

> **Primary Equation**: $R_a = \sqrt{4\Delta\delta_d^2 + \Delta\delta_p^2 + \Delta\delta_h^2}$  
> **Engineering Impact**: Predicts seal/gasket swelling when exposed to CIP chemicals.

| Symbol | Variable Definition | Localized Reference |
| :--- | :--- | :--- |
| \delta_d | Dispersive | Engineering Constant |
| \delta_p | Polar | Engineering Constant |
| \delta_h | Hydrogen | Engineering Constant |

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| Current density exceeding 500 A/m² for &gt;2 hours | 8 | Copper dendrite formation bridging cathode plates | Install current density monitoring with automatic cell voltage adjustment at 480 A/m² threshold |
| Thermal cycling ΔT&gt;35°C between 60-95°C | 8 | Fatigue cracking at bar-plate interface due to CTE mismatch | Implement expansion joints with Invar alloy (α=1.2×10⁻⁶/K) inserts at mounting points |

## 3. Key Technical Parameters
| Parameter | Value | Unit | Status |
| :--- | :--- | :--- | :--- |
| primary_spec | Config-dependent | mm | Verified |
| secondary_spec | Config-dependent | A | Verified |

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Electrolysis Cell**, **Rectifier Power Supply**, **Electrolyte Circulation System**  
**Downstream Applications**: Refined Copper Cathodes, High-Purity Zinc Sheets, Electrolytic Nickel Plates  

## 5. Engineering Risks & FAQ
- **Caution**: 
- **Caution**: 
- **Caution**: 

### Q: What are the main advantages of using copper alloy C11000 for cathode bars?
**A**: Copper alloy C11000 offers excellent electrical conductivity (100% IACS minimum), high corrosion resistance in electrolytic environments, and superior thermal stability, ensuring reliable performance in non-ferrous metal production cells.

### Q: How does the cathode bar's cross-sectional area affect electrolysis efficiency?
**A**: The cross-sectional area directly determines current-carrying capacity and voltage drop. Proper sizing minimizes energy loss, reduces heating, and maintains consistent metal deposition on cathode plates during electrolysis.

### Q: What maintenance is required for cathode bars in continuous operation?
**A**: Regular inspection for surface oxidation, verification of clamp tightness, and monitoring of connection lug integrity. Insulation sleeves should be checked for degradation, especially at high operating temperatures.

## 6. Manufacturing Compliance
- ISO 9001:2015 - QUALITY MANAGEMENT SYSTEMS
- CE MARKING - EU DIRECTIVE 2014/68/EU (PRESSURE EQUIPMENT DIRECTIVE)

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Electrolytic Cell Cathode Bar](https://cnfx.com/industry/non-ferrous-metal-production/product/electrolytic-cell-cathode-bar)**

### 🌐 Knowledge Graph Topology
> **Node Status**: Verified Engineering Spec
> **Connectivity**: Linked to **4** standalone system nodes
> **Global Context**: Part of a 5,814 node industrial cluster within the CNFX Graph

> **Reference ID**: ELECTROLYTIC_CELL_CATHODE_BAR | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 27a9b8af
