---
title: "Final Sealing Station"
industry: "Computer, Electronic and Optical Product Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:FINAL_SEALING_STATION"
  data_integrity_hash: "aa9ffa1bea29b5033400df6b9b72a0d6"
  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:FINAL_SEALING_STATION"
  data_source_uri: "https://cnfx.com/llms/industry/computer-electronic-and-optical-product-manufacturing/product/final-sealing-station.md"
  official_resource_url: "https://cnfx.com/industry/computer-electronic-and-optical-product-manufacturing/product/final-sealing-station"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0.8-1.2 MPa (8-12 bar) sealing pressure at 180-220°C"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 0.6
    unit: "MPa"
    consequence: "Thermal degradation of polymer sealing gasket material (PFA/PTFE) beyond glass transition temperature (Tg=260°C for PTFE), causing loss of viscoelastic properties and hermetic seal failure"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Laser power fluctuation exceeding ±5% from 150W nominal"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Closed-loop PID control with real-time pyrometer feedback maintaining 150W±2%"
  - node_2:
      trigger: "Argon shielding gas flow rate below 15 L/min"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Mass flow controller with redundant sensors maintaining 20±1 L/min flow rate"
bom_nodes:
  sealing-head-welding-head:
    type: "part"
    urn: "URN:CNFX:ME:SEALING_HEAD_WELDING_HEAD"
    interface_type: "physical-logic-coupled"
  clamping-fixture:
    type: "part"
    urn: "URN:CNFX:ME:CLAMPING_FIXTURE"
    interface_type: "physical-logic-coupled"
  atmosphere-control-enclosure-optional:
    type: "part"
    urn: "URN:CNFX:ME:ATMOSPHERE_CONTROL_ENCLOSURE_OPTIONAL"
    interface_type: "physical-logic-coupled"
  cooling-system:
    type: "device"
    urn: "URN:CNFX:ME:COOLING_SYSTEM"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 9001:2015 QUALITY MANAGEMENT SYSTEMS"
    scope: "Verified Engineering Specification"
  - standard: "ANSI/ASME B46.1-2019 SURFACE TEXTURE"
    scope: "Verified Engineering Specification"
  - standard: "DIN 8580:2003-09 MANUFACTURING PROCESSES"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/computer-electronic-and-optical-product-manufacturing/product/final-sealing-station.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "3d11bebafeec4064c36f8b794a274ae2e3516163da1e71557e92d2fc365ccafa"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Final Sealing Station

## 1. Technical Definition
A specialized station within a lithium-ion battery cell assembly line that performs the final hermetic sealing of the battery cell housing.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0.8-1.2 MPa (8-12 bar) sealing pressure at 180-220°C**. Failure boundary: **Seal integrity fails at &lt;0.6 MPa pressure differential or &gt;250°C sealing temperature**, Mechanism: **Thermal degradation of polymer sealing gasket material (PFA/PTFE) beyond glass transition temperature (Tg=260°C for PTFE), causing loss of viscoelastic properties and hermetic seal failure**.

### 2.1 Analytical Physics Model
Governed by the **Thin-Wall Pressure Vessel Stress Analysis**:

> **Primary Equation**: $\sigma_h = \frac{P \cdot D}{2t}$  
> **Engineering Impact**: Determines the hoop stress boundary to prevent rupture.

| Symbol | Variable Definition | Localized Reference |
| :--- | :--- | :--- |
| P | Internal Pressure | Engineering Constant |
| D | Diameter | Engineering Constant |
| t | Wall Thickness | Engineering Constant |

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| Laser power fluctuation exceeding ±5% from 150W nominal | 8 | Incomplete weld penetration depth &lt;0.8mm in 316L stainless steel housing | Closed-loop PID control with real-time pyrometer feedback maintaining 150W±2% |
| Argon shielding gas flow rate below 15 L/min | 8 | Oxide inclusion in laser weld seam exceeding 500 ppm oxygen concentration | Mass flow controller with redundant sensors maintaining 20±1 L/min flow rate |

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

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)
- [Sealing Head / Welding Head](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/sealing-head-welding-head.md) `(Standalone System)`
- [Clamping Fixture](https://cnfx.com/llms/industry/fabricated-metal-product-manufacturing/product/clamping-fixture.md) `(Standalone System)`
- [Atmosphere Control Enclosure (optional)](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/atmosphere-control-enclosure-optional.md) `(Standalone System)`
- [Cooling System](https://cnfx.com/llms/industry/basic-metal-manufacturing/product/cooling-system.md) `(Standalone System)`

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Laser Welding System**, **Vacuum Leak Testing Station**, **Automated Cell Handling Robot**  
**Downstream Applications**: Lithium-Ion Pouch Cells, Cylindrical Battery Cells, Prismatic Battery Cells  

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

### Q: What types of battery cells can the Final Sealing Station process?
**A**: The station handles various cell types including aluminum can cells, polymer laminate pouch cells, and cells with copper or nickel-plated steel terminals through adaptable sealing heads and fixtures.

### Q: Why is atmosphere control important in the final sealing process?
**A**: Atmosphere control prevents moisture and oxygen contamination during sealing, which is critical for lithium-ion battery longevity, safety, and performance in electronic devices.

### Q: What maintenance does the cooling system require for consistent operation?
**A**: Regular coolant replacement, filter cleaning, and thermal monitoring are essential to maintain precise temperature control during high-precision welding operations in continuous manufacturing environments.

## 6. Manufacturing Compliance
- ISO 9001:2015 QUALITY MANAGEMENT SYSTEMS
- ANSI/ASME B46.1-2019 SURFACE TEXTURE
- DIN 8580:2003-09 MANUFACTURING PROCESSES

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Final Sealing Station](https://cnfx.com/industry/computer-electronic-and-optical-product-manufacturing/product/final-sealing-station)**

### 🌐 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**: FINAL_SEALING_STATION | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 1b31b395
