---
title: "Cap/Lid Assembly"
industry: "Computer, Electronic and Optical Product Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:CAPLID_ASSEMBLY"
  data_integrity_hash: "1ac12d42cf69a4ad00ac57c9a128d79c"
  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:CAPLID_ASSEMBLY"
  data_source_uri: "https://cnfx.com/llms/industry/computer-electronic-and-optical-product-manufacturing/product/caplid-assembly.md"
  official_resource_url: "https://cnfx.com/industry/computer-electronic-and-optical-product-manufacturing/product/caplid-assembly"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0-2.5 bar differential pressure, -40°C to 85°C temperature"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 3.0
    unit: "bar"
    consequence: "Plastic deformation of polymer components exceeding yield strength (25 MPa for polypropylene), thermal degradation of sealing elastomers above glass transition temperature"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Thermal cycling between -40°C and 85°C at 5 cycles/hour"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Dual-material seal design with silicone outer layer and fluorocarbon inner layer"
  - node_2:
      trigger: "Vibration exposure at 200 Hz with 5 g acceleration"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Thread-locking adhesive application with 20 N·m torque specification"
bom_nodes:
  main-lid-plate:
    type: "component"
    urn: "URN:CNFX:ME:MAIN_LID_PLATE"
    interface_type: "physical-logic-coupled"
  sealing-gasket:
    type: "component"
    urn: "URN:CNFX:ME:SEALING_GASKET"
    interface_type: "physical-logic-coupled"
  fastening-bolts:
    type: "component"
    urn: "URN:CNFX:ME:FASTENING_BOLTS"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 9001:2015 QUALITY MANAGEMENT SYSTEMS"
    scope: "Verified Engineering Specification"
  - standard: "CE MARKING (EU REGULATION 1935/2004 FOR FOOD CONTACT MATERIALS)"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/computer-electronic-and-optical-product-manufacturing/product/caplid-assembly.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "dd2e98ea4e9f96ba0dd6694ebeea482b81bf342397db849f3f12c5c9c8a9f6da"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Cap/Lid Assembly

## 1. Technical Definition
A sealing and protective assembly that covers the cell housing opening

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0-2.5 bar differential pressure, -40°C to 85°C temperature**. Failure boundary: **3.0 bar differential pressure causing permanent deformation, 90°C causing elastomer degradation**, Mechanism: **Plastic deformation of polymer components exceeding yield strength (25 MPa for polypropylene), thermal degradation of sealing elastomers above glass transition temperature**.

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| Thermal cycling between -40°C and 85°C at 5 cycles/hour | 8 | Seal compression set exceeding 15% of original thickness | Dual-material seal design with silicone outer layer and fluorocarbon inner layer |
| Vibration exposure at 200 Hz with 5 g acceleration | 8 | Fastener loosening leading to 0.5 mm gap formation | Thread-locking adhesive application with 20 N·m torque specification |

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

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

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Injection Molding Machine**, **Industrial Chiller**, **Hopper Dryer**  
**Downstream Applications**: Battery Housings, Electronic Enclosures, Optical Device Casings  

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

### Q: What materials are used in this cap/lid assembly?
**A**: This assembly uses premium aluminum alloy for the main lid plate, stainless steel for fastening bolts, and silicone rubber for the sealing gasket to ensure durability and reliable protection.

### Q: How does this assembly protect computer and optical products?
**A**: The cap/lid assembly creates a secure seal over cell housing openings, preventing dust, moisture, and contaminants from entering while providing structural protection for sensitive electronic and optical components.

### Q: What are the main components included in this assembly?
**A**: The assembly includes three key components: the main lid plate (aluminum alloy), sealing gasket (silicone rubber), and fastening bolts (stainless steel) for complete installation and sealing functionality.

## 6. Manufacturing Compliance
- ISO 9001:2015 QUALITY MANAGEMENT SYSTEMS
- CE MARKING (EU REGULATION 1935/2004 FOR FOOD CONTACT MATERIALS)

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Cap/Lid Assembly](https://cnfx.com/industry/computer-electronic-and-optical-product-manufacturing/product/caplid-assembly)**

### 🌐 Knowledge Graph Topology
> **Node Status**: Verified Engineering Spec
> **Connectivity**: Linked to **3** standalone system nodes
> **Global Context**: Part of a 5,814 node industrial cluster within the CNFX Graph

> **Reference ID**: CAPLID_ASSEMBLY | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: e400d3ca
