---
title: "Vacuum Chamber"
industry: "Basic Metal Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:VACUUM_CHAMBER"
  data_integrity_hash: "54fe7f52fe49b624b3d29a8845c5ee87"
  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:VACUUM_CHAMBER"
  data_source_uri: "https://cnfx.com/llms/industry/basic-metal-manufacturing/product/vacuum-chamber.md"
  official_resource_url: "https://cnfx.com/industry/basic-metal-manufacturing/product/vacuum-chamber"
  is_verified_logic: true
attributes:
  primary_spec:
    status: "config-dependent"
    typical_range: "1e-6 to 1e-3 mbar (1e-4 to 0.1 Pa)"
    unit: "m³"
engineering_limits:
  max_safe_operating_point:
    value: 1
    unit: "e"
    consequence: "Material yield strength exceeded by pressure differential (ΔP &gt; σ_yield * t/R) or elastomer seal permeation rate &gt; 1e-9 mbar·L/s"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Outgassing rate &gt; 1e-6 mbar·L/s·cm² from polymer components"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Bake-out at 150°C for 72 hours with turbomolecular pumping"
  - node_2:
      trigger: "Thermal cycling between 293K and 473K at &gt;5K/min rate"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Conflat knife-edge seals with copper gaskets and controlled ramp rate &lt;2K/min"
bom_nodes:
  viewport-0:
    type: "part"
    urn: "URN:CNFX:ME:VIEWPORT"
    interface_type: "physical-logic-coupled"
  feedthrough-1:
    type: "part"
    urn: "URN:CNFX:ME:FEEDTHROUGH"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 21358:2020 VACUUM TECHNOLOGY - VACUUM GAUGES - SPECIFICATIONS FOR HOT CATHODE IONIZATION GAUGES"
    scope: "Verified Engineering Specification"
  - standard: "ANSI/ASA S12.10/PART 1:2010 ACOUSTICS - MEASUREMENT OF AIRBORNE NOISE EMITTED BY INFORMATION TECHNOLOGY AND TELECOMMUNICATIONS EQUIPMENT"
    scope: "Verified Engineering Specification"
  - standard: "DIN 28400-1:2016 VACUUM TECHNOLOGY - ACCEPTANCE SPECIFICATIONS - PART 1: GENERAL REQUIREMENTS"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/basic-metal-manufacturing/product/vacuum-chamber.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "f6fd66bb0b9eae24944329071fb60e3f7501c5987e28063d8fea35cb8a5a3b08"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Vacuum Chamber

## 1. Technical Definition
A sealed enclosure designed to maintain a controlled low-pressure environment for industrial processes.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **1e-6 to 1e-3 mbar (1e-4 to 0.1 Pa)**. Failure boundary: **1e-9 mbar (1e-7 Pa) ultimate vacuum or 1.1 bar (110 kPa) positive pressure**, Mechanism: **Material yield strength exceeded by pressure differential (ΔP &gt; σ_yield * t/R) or elastomer seal permeation rate &gt; 1e-9 mbar·L/s**.

### 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 |
| :--- | :--- | :--- | :--- |
| Outgassing rate &gt; 1e-6 mbar·L/s·cm² from polymer components | 8 | Base pressure degradation to &gt;1e-4 mbar within 24 hours | Bake-out at 150°C for 72 hours with turbomolecular pumping |
| Thermal cycling between 293K and 473K at &gt;5K/min rate | 8 | 304L stainless steel flange warpage &gt;0.1mm flatness deviation | Conflat knife-edge seals with copper gaskets and controlled ramp rate &lt;2K/min |

## 3. Key Technical Parameters
| Parameter | Value | Unit | Status |
| :--- | :--- | :--- | :--- |
| primary_spec | Config-dependent | m³ | Verified |

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)
- [Viewport](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/viewport.md) `(Standalone System)`
- [Feedthrough](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/feedthrough.md) `(Standalone System)`

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Vacuum Pump System**, **Gas Purification System**, **Process Control System**  
**Downstream Applications**: High-Purity Metal Alloys, Vacuum-Cast Components, Surface-Treated Metal Products  

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

### Q: What are the main applications of vacuum chambers in basic metal manufacturing?
**A**: Vacuum chambers are used for processes like degassing molten metals, heat treatment, brazing, sintering, and creating controlled atmospheres to prevent oxidation during metal processing.

### Q: What is the difference between 304 and 316L stainless steel vacuum chambers?
**A**: 304 stainless steel offers good corrosion resistance for general applications, while 316L provides superior corrosion resistance, especially against chlorides and acids, making it ideal for more aggressive industrial environments.

### Q: How do feedthroughs and viewports enhance vacuum chamber functionality?
**A**: Feedthroughs allow electrical, fluid, or mechanical connections into the chamber without breaking vacuum, while viewports enable visual monitoring of processes inside the sealed environment.

## 6. Manufacturing Compliance
- ISO 21358:2020 VACUUM TECHNOLOGY - VACUUM GAUGES - SPECIFICATIONS FOR HOT CATHODE IONIZATION GAUGES
- ANSI/ASA S12.10/PART 1:2010 ACOUSTICS - MEASUREMENT OF AIRBORNE NOISE EMITTED BY INFORMATION TECHNOLOGY AND TELECOMMUNICATIONS EQUIPMENT
- DIN 28400-1:2016 VACUUM TECHNOLOGY - ACCEPTANCE SPECIFICATIONS - PART 1: GENERAL REQUIREMENTS

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Vacuum Chamber](https://cnfx.com/industry/basic-metal-manufacturing/product/vacuum-chamber)**

### 🌐 Knowledge Graph Topology
> **Node Status**: Verified Engineering Spec
> **Connectivity**: Linked to **2** standalone system nodes
> **Global Context**: Part of a 5,814 node industrial cluster within the CNFX Graph

> **Reference ID**: VACUUM_CHAMBER | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 22d6f562
