INDUSTRY COMPONENT

Structural backing

Structural backing component providing mechanical support and stability to barrel liners in industrial machinery.

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Component Specifications

Definition
A structural backing is a critical component in barrel liner assemblies that provides mechanical reinforcement, load distribution, and dimensional stability. It serves as the foundational support structure that maintains the barrel liner's position and alignment under operational stresses, preventing deformation and ensuring consistent performance in material processing applications.
Working Principle
The structural backing operates on mechanical support principles, transferring operational loads from the barrel liner to the machine frame through rigid structural elements. It maintains geometric integrity by resisting bending moments, torsional forces, and vibration-induced stresses, ensuring the barrel liner maintains proper alignment and contact with processing materials.
Materials
Typically manufactured from high-strength steel alloys (AISI 4140, 4340), stainless steel (316L, 17-4PH), or specialized composites with minimum yield strength of 550 MPa and hardness of 30-45 HRC. Surface treatments include nitriding, hard chrome plating, or ceramic coatings for wear resistance.
Technical Parameters
  • Weight Varies by size (typically 5-50 kg)
  • Load Capacity 15-50 kN depending on application
  • Surface Finish Ra 0.8-1.6 μm
  • Dimensional Tolerance ±0.05 mm
  • Operating Temperature -20°C to 250°C
Standards
ISO 286-2, DIN 7154, ISO 2768-1

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Structural backing.

structural backing barrel liner support machine component industrial reinforcement mechanical support liner backing plate Structural backing in Machinery and Equipment Manufacturing

Parent Products

This component is used in the following industrial products

Barrel Liners

Replaceable cylindrical sleeves that form the inner surface of extrusion or injection molding barrels.

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Engineering Analysis

Risks & Mitigation
  • Fatigue failure under cyclic loading
  • Corrosion in harsh environments
  • Dimensional instability due to thermal expansion
  • Improper installation leading to misalignment
FMEA Triads
Trigger: Material fatigue from cyclic loading
Failure: Crack propagation leading to structural failure
Mitigation: Implement regular non-destructive testing (NDT) and use materials with higher fatigue resistance
Trigger: Corrosive environment exposure
Failure: Reduced cross-sectional area and strength degradation
Mitigation: Apply protective coatings and use corrosion-resistant alloys

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
Geometric tolerances per ISO 1101, dimensional tolerances per ISO 286-2
Test Method
Dimensional verification with CMM, load testing per ASTM E8, non-destructive testing (UT, MPI) per ASME BPVC

Procurement Evaluation Criteria

Not customer reviews or live demand data. These dimensions support RFQ preparation and supplier evaluation.

Technical documentation
4/5
Manufacturing capability
4/5
Inspection readiness
5/5
Supplier transparency
3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

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Frequently Asked Questions

What is the primary function of a structural backing in barrel liner systems?

The primary function is to provide mechanical support and stability to the barrel liner, distributing operational loads and preventing deformation during material processing operations.

How often should structural backing components be inspected?

Regular visual inspections should occur monthly, with detailed dimensional and structural inspections recommended every 6-12 months depending on operating conditions and load cycles.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

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