INDUSTRY COMPONENT

Die Plate

Die plate is a precision component in extrusion dies that shapes molten material into specific profiles.

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Component Specifications

Definition
A die plate is a critical component in extrusion die assemblies, typically made from hardened steel or carbide, featuring precisely machined orifices that determine the cross-sectional shape of extruded products. It serves as the final shaping element where molten polymer, metal, or other materials are forced through under high pressure to create continuous profiles with consistent dimensions.
Working Principle
The die plate operates on the principle of controlled material flow restriction. Molten material enters the die assembly under pressure, flows through distribution channels, and is forced through the precisely shaped openings in the die plate. The geometry of these openings determines the final profile shape, while the land length (thickness of the plate) provides necessary back pressure for uniform material distribution and dimensional stability.
Materials
Tool steel (H13, D2, M2), Carbide (WC-Co), Stainless steel (420, 440C), Nickel alloys; Hardness: 48-62 HRC; Surface finish: Ra 0.2-0.8 μm
Technical Parameters
  • Flatness 0.02 mm/m
  • Thickness 20-100 mm
  • Parallelism 0.01 mm
  • Pressure rating 50-100 MPa
  • Orifice tolerance ±0.01-0.05 mm
  • Max operating temperature 400°C
Standards
ISO 9001, DIN 16742, ASTM A681

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Die Plate.

extrusion die plate die plate manufacturing plastic extrusion die aluminum extrusion die die plate material die plate specifications Die Plate Die Plate in Rubber and Plastic Product Manufacturing

Parent Products

This component is used in the following industrial products

Extrusion Die

A precision tool that shapes molten aluminum into specific cross-sectional profiles during extrusion.

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Progressive Die Set

A precision tool assembly used in progressive stamping presses to perform multiple operations on metal strips in a single pass.

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Engineering Analysis

Risks & Mitigation
  • Wear and erosion from abrasive materials
  • Thermal fatigue cracking
  • Corrosion from processing chemicals
  • Dimensional instability under thermal cycling
  • Improper alignment causing profile defects
FMEA Triads
Trigger: Abrasive material flow
Failure: Orifice enlargement and loss of dimensional accuracy
Mitigation: Use carbide inserts, apply wear-resistant coatings (TiN, CrN), implement regular dimensional inspection
Trigger: Thermal cycling stress
Failure: Micro-cracking and catastrophic fracture
Mitigation: Use tempered tool steels, implement controlled heating/cooling cycles, design with thermal expansion compensation
Trigger: Improper cleaning procedures
Failure: Corrosion and surface degradation
Mitigation: Establish standardized cleaning protocols, use compatible cleaning agents, apply protective coatings during storage

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
ISO 2768-mK for general dimensions, ISO 8015 for geometrical tolerances
Test Method
Coordinate measuring machine (CMM) inspection, surface roughness testing, hardness testing (Rockwell C), dye penetrant testing for cracks

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 difference between a die plate and a die block?

A die plate is specifically the component with shaped orifices that forms the final profile, while a die block refers to the complete assembly including the plate, backer, bolsters, and other supporting components.

How often should die plates be replaced?

Replacement depends on material abrasiveness, production volume, and maintenance. Typically 6-24 months for continuous production, but regular inspection for wear, corrosion, and dimensional accuracy is recommended every 500-1000 operating hours.

Can die plates be repaired or refurbished?

Yes, minor wear can be addressed through precision grinding, polishing, or coating reapplication. However, significant erosion or dimensional changes usually require replacement to maintain product quality.

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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