---
title: "Main Frame"
industry: "Machinery and Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:MAIN_FRAME"
  data_integrity_hash: "6b41f9891e8e5bfc75bb63fffc54388d"
  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:MAIN_FRAME"
  data_source_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/main-frame.md"
  official_resource_url: "https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/main-frame"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0-250 MPa compressive stress, 0-150 MPa tensile stress, 0-5 mm deflection under 50 kN/m² distributed load"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 275
    unit: "MPa"
    consequence: "Von Mises yield criterion violation causing plastic deformation, Euler buckling instability due to slenderness ratio &gt; 200, Paris' law fatigue crack propagation (da/dN = C(ΔK)^m with C=1.5×10⁻¹¹, m=3)"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Corrosion-induced section loss exceeding 15% of original cross-sectional area"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Hot-dip galvanizing to 85 μm zinc coating per ASTM A123, cathodic protection at -0.85 V vs Cu/CuSO₄"
  - node_2:
      trigger: "Resonant vibration at 25 Hz matching natural frequency of 8 m span"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Stiffener plates increasing natural frequency to 35 Hz, tuned mass dampers with 5% critical damping"
bom_nodes:
  longitudinal-beams:
    type: "component"
    urn: "URN:CNFX:ME:LONGITUDINAL_BEAMS"
    interface_type: "physical-logic-coupled"
  cross-members:
    type: "component"
    urn: "URN:CNFX:ME:CROSS_MEMBERS"
    interface_type: "physical-logic-coupled"
  mounting-brackets:
    type: "component"
    urn: "URN:CNFX:ME:MOUNTING_BRACKETS"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 9001:2015 QUALITY MANAGEMENT SYSTEMS"
    scope: "Verified Engineering Specification"
  - standard: "CE MARKING FOR MACHINERY DIRECTIVE 2006/42/EC"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/main-frame.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "58311cb39aee9770df0bf863f0610f6ded2aa33a0cfcf0668b55b653f3ce7d99"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Main Frame

## 1. Technical Definition
The primary structural framework of a slipform paver that provides rigidity and support for all other components.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0-250 MPa compressive stress, 0-150 MPa tensile stress, 0-5 mm deflection under 50 kN/m² distributed load**. Failure boundary: **Yield strength exceedance at 275 MPa (ASTM A36 steel), buckling instability at 6 mm deflection under 55 kN/m² load, fatigue crack initiation at 10⁶ cycles at 200 MPa stress amplitude**, Mechanism: **Von Mises yield criterion violation causing plastic deformation, Euler buckling instability due to slenderness ratio &gt; 200, Paris' law fatigue crack propagation (da/dN = C(ΔK)^m with C=1.5×10⁻¹¹, m=3)**.

### 2.1 Analytical Physics Model
Governed by the **Frame Structural Deflection Analysis**:

> **Primary Equation**: $\delta = \frac{5 q L^4}{384 E I}$  
> **Engineering Impact**: Ensures structural stability for multi-stage machines.

| Symbol | Variable Definition | Localized Reference |
| :--- | :--- | :--- |
| q | Uniform Load | Engineering Constant |
| E | Elastic Modulus | Engineering Constant |
| I | Moment of Inertia | Engineering Constant |

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| Corrosion-induced section loss exceeding 15% of original cross-sectional area | 8 | Reduced moment of inertia causing 8 mm deflection under 40 kN/m² load | Hot-dip galvanizing to 85 μm zinc coating per ASTM A123, cathodic protection at -0.85 V vs Cu/CuSO₄ |
| Resonant vibration at 25 Hz matching natural frequency of 8 m span | 8 | Accelerated fatigue failure at 10⁵ cycles instead of 10⁶ cycles | Stiffener plates increasing natural frequency to 35 Hz, tuned mass dampers with 5% critical damping |

## 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**: **Concrete Mixing Plant**, **Concrete Transport Truck**, **Concrete Placing Boom**  
**Downstream Applications**: Highway Pavements, Airport Runways, Bridge Decks  

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

### Q: What is the primary function of the main frame in a slipform paver?
**A**: The main frame serves as the primary structural framework that provides rigidity and support for all other components of the slipform paver, ensuring stability during concrete paving operations.

### Q: What materials are used in manufacturing the main frame?
**A**: The main frame is constructed from high-strength steel to withstand the demanding conditions of concrete paving while maintaining structural integrity and durability.

### Q: What components are included in the main frame BOM?
**A**: The main frame bill of materials includes cross members, longitudinal beams, and mounting brackets, all designed to work together as a cohesive structural system.

## 6. Manufacturing Compliance
- ISO 9001:2015 QUALITY MANAGEMENT SYSTEMS
- CE MARKING FOR MACHINERY DIRECTIVE 2006/42/EC

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Main Frame](https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/main-frame)**

### 🌐 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**: MAIN_FRAME | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 7b541ae1
