---
title: "Torpedo-shaped vessel"
industry: "Basic Metal Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:TORPEDO_SHAPED_VESSEL"
  data_integrity_hash: "8d79f7c20c79257e615de092da4c48bf"
  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:TORPEDO_SHAPED_VESSEL"
  data_source_uri: "https://cnfx.com/llms/industry/basic-metal-manufacturing/product/torpedo-shaped-vessel.md"
  official_resource_url: "https://cnfx.com/industry/basic-metal-manufacturing/product/torpedo-shaped-vessel"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0.1-0.3 MPa internal pressure, 1450-1650°C molten metal temperature, 50-100 metric tons capacity"
    unit: "tonnes"
engineering_limits:
  max_safe_operating_point:
    value: 0.35
    unit: "MPa"
    consequence: "Thermal stress exceeding refractory material's 2.5 MPa tensile strength at 1700°C, pressure-induced hoop stress surpassing steel shell's 345 MPa yield strength, creep deformation at sustained 1600°C exceeding 0.2% strain limit"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Thermal cycling between 1450-1650°C causing differential expansion"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Multilayer refractory design with graded thermal expansion coefficients (8.5×10⁻⁶ to 12×10⁻⁶ /°C) and expansion joints"
  - node_2:
      trigger: "Molten metal slag accumulation exceeding 150 mm thickness"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Automated slag detection system with 5 mm resolution and scheduled refractory maintenance at 100-cycle intervals"
bom_nodes:
  refractory-lining:
    type: "component"
    urn: "URN:CNFX:ME:REFRACTORY_LINING"
    interface_type: "physical-logic-coupled"
  pouring-spout:
    type: "component"
    urn: "URN:CNFX:ME:POURING_SPOUT"
    interface_type: "physical-logic-coupled"
  trunnion-rings:
    type: "part"
    urn: "URN:CNFX:ME:TRUNNION_RINGS"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 9001:2015 - QUALITY MANAGEMENT SYSTEMS"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/basic-metal-manufacturing/product/torpedo-shaped-vessel.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "211677f56323a6f5b3068918d11eb92939436be8d4ecfef632f42138ba8500a8"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Torpedo-shaped vessel

## 1. Technical Definition
A specialized, torpedo-shaped container designed for transporting and temporarily storing molten metal in a Hot Metal Torpedo Car.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0.1-0.3 MPa internal pressure, 1450-1650°C molten metal temperature, 50-100 metric tons capacity**. Failure boundary: **0.35 MPa internal pressure causing permanent deformation, 1700°C causing refractory lining failure, 110 metric tons exceeding structural yield strength**, Mechanism: **Thermal stress exceeding refractory material's 2.5 MPa tensile strength at 1700°C, pressure-induced hoop stress surpassing steel shell's 345 MPa yield strength, creep deformation at sustained 1600°C exceeding 0.2% strain limit**.

### 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 |
| :--- | :--- | :--- | :--- |
| Thermal cycling between 1450-1650°C causing differential expansion | 8 | Refractory lining spalling and cracking with 5-10 mm material loss | Multilayer refractory design with graded thermal expansion coefficients (8.5×10⁻⁶ to 12×10⁻⁶ /°C) and expansion joints |
| Molten metal slag accumulation exceeding 150 mm thickness | 8 | Localized overheating to 1750°C and refractory chemical corrosion | Automated slag detection system with 5 mm resolution and scheduled refractory maintenance at 100-cycle intervals |

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

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)
- [Trunnion Rings](https://cnfx.com/llms/industry/other-transport-equipment-manufacturing/product/trunnion-rings.md) `(Standalone System)`

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Ladle Preheating Station**, **Molten Metal Transfer Car**, **Refractory Lining Installation System**  
**Downstream Applications**: Steel Ingots, Cast Iron Pipes, Aluminum Alloy Billets  

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

### Q: What is the primary function of a torpedo-shaped vessel in basic metal manufacturing?
**A**: A torpedo-shaped vessel is designed to transport and temporarily store molten metal, typically in Hot Metal Torpedo Cars, ensuring safe and efficient movement of high-temperature materials between processing stages in metal production facilities.

### Q: What materials are used in the construction of these torpedo-shaped vessels?
**A**: These vessels feature a durable steel shell with an interior refractory lining made from materials like alumina, magnesia, or carbon to withstand extreme temperatures and prevent contamination of the molten metal during transport and storage.

### Q: What are the key components in the Bill of Materials (BOM) for these vessels?
**A**: The essential BOM components include the pouring spout for controlled metal discharge, refractory lining for thermal protection, and trunnion rings that provide structural support and enable secure mounting on transport cars.

## 6. Manufacturing Compliance
- ISO 9001:2015 - QUALITY MANAGEMENT SYSTEMS

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Torpedo-shaped vessel](https://cnfx.com/industry/basic-metal-manufacturing/product/torpedo-shaped-vessel)**

### 🌐 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**: TORPEDO_SHAPED_VESSEL | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 52a30b6b
