---
title: "Nozzle Body"
industry: "Basic Metal Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:NOZZLE_BODY"
  data_integrity_hash: "63271f1b09ca6091c64b54b077cefcab"
  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:NOZZLE_BODY"
  data_source_uri: "https://cnfx.com/llms/industry/basic-metal-manufacturing/product/nozzle-body.md"
  official_resource_url: "https://cnfx.com/industry/basic-metal-manufacturing/product/nozzle-body"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0-15 MPa internal pressure, 700-1600°C molten metal temperature, 0.5-3.0 m/s flow velocity"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 450
    unit: "MPa"
    consequence: "Thermal fatigue from cyclic heating/cooling (ΔT&gt;500°C), creep deformation at sustained temperatures &gt;1200°C, erosion-corrosion from molten metal flow (velocity &gt;3.5 m/s)"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Thermal shock from rapid temperature change exceeding 200°C/minute"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Gradual preheating protocol (max 50°C/minute ramp rate), thermal barrier coating (ZrO2-based), controlled cooling system"
  - node_2:
      trigger: "Molten metal flow velocity exceeding 3.5 m/s for sustained periods"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Tungsten carbide lining in flow channel, optimized flow geometry (Reynolds number &lt;2300), regular thickness monitoring via ultrasonic testing"
bom_nodes:
  inlet-flange:
    type: "component"
    urn: "URN:CNFX:ME:INLET_FLANGE"
    interface_type: "physical-logic-coupled"
  flow-channel:
    type: "component"
    urn: "URN:CNFX:ME:FLOW_CHANNEL"
    interface_type: "physical-logic-coupled"
  outlet-section:
    type: "component"
    urn: "URN:CNFX:ME:OUTLET_SECTION"
    interface_type: "physical-logic-coupled"
  mounting-features:
    type: "component"
    urn: "URN:CNFX:ME:MOUNTING_FEATURES"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
url: "https://cnfx.com/llms/industry/basic-metal-manufacturing/product/nozzle-body.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "d023f727127a2cea076d054574ff60449678ee1e29da5b7f82c464e384388a0f"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Nozzle Body

## 1. Technical Definition
The main structural housing of a molten metal flow control nozzle that contains and directs the flow channel.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0-15 MPa internal pressure, 700-1600°C molten metal temperature, 0.5-3.0 m/s flow velocity**. Failure boundary: **Material yield strength threshold at 450 MPa (for high-temperature steel), thermal stress exceeding 300 MPa, erosion rate &gt;0.1 mm/hour**, Mechanism: **Thermal fatigue from cyclic heating/cooling (ΔT&gt;500°C), creep deformation at sustained temperatures &gt;1200°C, erosion-corrosion from molten metal flow (velocity &gt;3.5 m/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 |
| :--- | :--- | :--- | :--- |
| Thermal shock from rapid temperature change exceeding 200°C/minute | 8 | Crack initiation and propagation in nozzle body wall | Gradual preheating protocol (max 50°C/minute ramp rate), thermal barrier coating (ZrO2-based), controlled cooling system |
| Molten metal flow velocity exceeding 3.5 m/s for sustained periods | 8 | Accelerated erosion of flow channel surface (&gt;0.15 mm/hour material loss) | Tungsten carbide lining in flow channel, optimized flow geometry (Reynolds number &lt;2300), regular thickness monitoring via ultrasonic testing |

## 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**: **Molten Metal Furnace**, **Temperature Control System**, **Nozzle Positioning Mechanism**  
**Downstream Applications**: Steel Ingots, Aluminum Billets, Copper Rods  

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

### Q: What materials are best for nozzle bodies in high-temperature metal applications?
**A**: Refractory ceramics like high-alumina and zirconia-based ceramics are ideal for nozzle bodies due to their exceptional thermal stability, corrosion resistance, and ability to withstand molten metal environments.

### Q: How does the nozzle body design affect molten metal flow control?
**A**: The nozzle body's structural housing precisely contains and directs the flow channel, with components like the inlet flange, mounting features, and outlet section working together to regulate flow rate, minimize turbulence, and ensure consistent metal delivery.

### Q: What maintenance considerations are important for nozzle bodies in basic metal manufacturing?
**A**: Regular inspection for thermal stress cracks, erosion of the flow channel, and proper alignment of mounting features is crucial. Using compatible refractory materials and following thermal cycling protocols extends service life.

## 6. Manufacturing Compliance

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### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Nozzle Body](https://cnfx.com/industry/basic-metal-manufacturing/product/nozzle-body)**

### 🌐 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**: NOZZLE_BODY | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 50edf45d
