Die Plate: Thickness 20-100 mm, Pressure rating 50-100 MPa

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

Parameter	Typical range	Notes & selection driver
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

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards

ISO 9001, DIN 16742, ASTM A681

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.

View Product Details

Progressive Die Set

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

View Product Details

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

Typical Suppliers & Equivalents

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

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

Verify equipment lists, process limits, capacity, and representative production evidence.

Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

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CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Die Plate

Manufacturer profiles associated with Die Plate.

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Related Components

Tie Layer

Tie layer is a bonding component in multi-layer co-extruded barrier films that ensures adhesion between incompatible polymer layers.

Mold Release Coating

Specialized coating applied to molds to facilitate easy release of silicone seal rings during manufacturing.

Silicone Polymer Base

Silicone polymer base is a high-temperature resistant polymer material used as the foundational component in silicone rubber compounds for industrial applications.

Reinforcing Filler

Reinforcing filler is a material added to silicone rubber compounds to enhance mechanical properties, thermal stability, and durability in high-temperature applications.

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.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

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.

Die Plate