---
title: "Polymer Melt Flow Index Tester"
industry: "Plastics in Primary Forms Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:POLYMER_MELT_FLOW_INDEX_TESTER"
  data_integrity_hash: "05301cb5c483ef70b95fcb0df72f11b3"
  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:POLYMER_MELT_FLOW_INDEX_TESTER"
  data_source_uri: "https://cnfx.com/llms/industry/plastics-primary-forms-manufacturing/product/polymer-melt-flow-index-tester.md"
  official_resource_url: "https://cnfx.com/industry/plastics-primary-forms-manufacturing/product/polymer-melt-flow-index-tester"
  is_verified_logic: true
attributes:
  test_load_range:
    status: "config-dependent"
    typical_range: "2.16-21.6 kg load at 190-300°C, 0.1-100 g/10min flow rate"
    unit: "kg"
  temperature_range:
    status: "config-dependent"
    typical_range: "190-300°C"
    unit: "°C"
engineering_limits:
  max_safe_operating_point:
    value: 0.005
    unit: "mm"
    consequence: "Thermal expansion mismatch between ASTM D1238-compliant steel barrel (α=11.5×10⁻⁶/K) and polymer residue causing Coulomb friction exceeding 0.8 coefficient"
fmea_matrix_quantitative:
  - node_1:
      trigger: "PID controller overshoot exceeding 5°C/s heating rate"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Cascade control with feedforward compensation using Arrhenius kinetics model"
  - node_2:
      trigger: "Capillary die L/D ratio deviation beyond ISO 1133 tolerance of ±0.05 mm"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Mooney-Rabinowitsch correction algorithm with real-time Bagley pressure correction"
bom_nodes:
  temperature-controlled-barrel:
    type: "part"
    urn: "URN:CNFX:ME:TEMPERATURE_CONTROLLED_BARREL"
    interface_type: "physical-logic-coupled"
  standardized-test-die:
    type: "component"
    urn: "URN:CNFX:ME:STANDARDIZED_TEST_DIE"
    interface_type: "physical-logic-coupled"
  piston-assembly:
    type: "part"
    urn: "URN:CNFX:ME:PISTON_ASSEMBLY"
    interface_type: "physical-logic-coupled"
  digital-temperature-controller:
    type: "part"
    urn: "URN:CNFX:ME:DIGITAL_TEMPERATURE_CONTROLLER"
    interface_type: "physical-logic-coupled"
  extrudate-cutting-mechanism:
    type: "part"
    urn: "URN:CNFX:ME:EXTRUDATE_CUTTING_MECHANISM"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "CE: MACHINERY DIRECTIVE 2006/42/EC FOR ELECTRICAL SAFETY AND ELECTROMAGNETIC COMPATIBILITY"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/plastics-primary-forms-manufacturing/product/polymer-melt-flow-index-tester.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "59afca0aba66ed914f9c9389e81666a3131dca952600932862476a6203da79e9"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Polymer Melt Flow Index Tester

## 1. Technical Definition
Laboratory instrument for measuring polymer melt flow rate under standardized conditions

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **2.16-21.6 kg load at 190-300°C, 0.1-100 g/10min flow rate**. Failure boundary: **Piston seizure at 0.005 mm radial clearance loss or barrel deformation at 350°C**, Mechanism: **Thermal expansion mismatch between ASTM D1238-compliant steel barrel (α=11.5×10⁻⁶/K) and polymer residue causing Coulomb friction exceeding 0.8 coefficient**.

### 2.1 Analytical Physics Model
Governed by the **Darcy-Weisbach Pressure Drop**:

> **Primary Equation**: $\Delta P = f \cdot \frac{L}{D} \cdot \frac{\rho v^2}{2}$  
> **Engineering Impact**: Critical for sizing CIP (Clean-In-Place) pump heads.

| Symbol | Variable Definition | Localized Reference |
| :--- | :--- | :--- |
| f | Friction Factor | Engineering Constant |
| L | Pipe Length | Engineering Constant |
| v | Velocity | Engineering Constant |

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| PID controller overshoot exceeding 5°C/s heating rate | 8 | Polymer degradation forming crosslinked char at barrel walls | Cascade control with feedforward compensation using Arrhenius kinetics model |
| Capillary die L/D ratio deviation beyond ISO 1133 tolerance of ±0.05 mm | 8 | Wall slip phenomenon causing 15% MFR measurement error | Mooney-Rabinowitsch correction algorithm with real-time Bagley pressure correction |

## 3. Key Technical Parameters
| Parameter | Value | Unit | Status |
| :--- | :--- | :--- | :--- |
| test_load_range | Config-dependent | kg | Verified |
| temperature_range | Config-dependent | °C | Verified |

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)
- [Temperature-Controlled Barrel](https://cnfx.com/llms/industry/rubber-and-plastic-product-manufacturing/product/temperature-controlled-barrel.md) `(Standalone System)`
- [Piston Assembly](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/piston-assembly.md) `(Standalone System)`
- [Digital Temperature Controller](https://cnfx.com/llms/industry/rubber-and-plastic-product-manufacturing/product/digital-temperature-controller.md) `(Standalone System)`
- [Extrudate Cutting Mechanism](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/extrudate-cutting-mechanism.md) `(Standalone System)`

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Laboratory Granulator**, **Sample Preparation Press**, **Temperature Calibration System**  
**Downstream Applications**: Polyethylene Film, Polypropylene Fibers, PVC Pipes  

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

### Q: What materials are used in the construction of this melt flow index tester?
**A**: The tester features Stainless Steel 316 for corrosion resistance, Hardened Tool Steel for durability, High-Temperature Ceramic Insulation for thermal efficiency, and a Quartz Glass Viewport for clear observation during testing.

### Q: How accurate is the temperature control in this polymer melt flow tester?
**A**: The digital temperature controller provides precise temperature regulation with high accuracy, ensuring consistent heating rates and maintaining standardized testing conditions for reliable melt flow rate measurements.

### Q: What components are included in the Bill of Materials for this instrument?
**A**: The BOM includes a Digital Temperature Controller, Extrudate Cutting Mechanism, Piston Assembly, Standardized Test Die, and Temperature-Controlled Barrel - all designed to meet industry testing standards for polymer melt flow analysis.

## 6. Manufacturing Compliance
- CE: MACHINERY DIRECTIVE 2006/42/EC FOR ELECTRICAL SAFETY AND ELECTROMAGNETIC COMPATIBILITY

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Polymer Melt Flow Index Tester](https://cnfx.com/industry/plastics-primary-forms-manufacturing/product/polymer-melt-flow-index-tester)**

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

> **Reference ID**: POLYMER_MELT_FLOW_INDEX_TESTER | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: aa305f7e
