Skimming Blade: Blade Length 300-1200 mm, Thickness 8-20 mm

Component Specifications

Definition

The skimming blade is a critical wear component in dross skimming systems, designed with specific geometry and material properties to efficiently separate dross (oxide impurities and non-metallic inclusions) from molten metal surfaces. It operates at high temperatures while maintaining structural integrity and precise edge retention to ensure consistent impurity removal without contaminating the molten metal bath.

Working Principle

The blade operates on the principle of surface tension differential and mechanical separation. As it moves across the molten metal surface, its angled edge creates a shearing action that lifts dross (which has lower density and different surface properties) while allowing clean molten metal to flow beneath. The blade's geometry creates controlled turbulence that aggregates impurities for efficient removal.

Materials

High-temperature tool steel (typically H13 or D2 grade) with hardness 45-55 HRC, often with ceramic or carbide coatings for enhanced wear resistance. Alternative materials include silicon carbide composites for aluminum applications or tungsten carbide for high-abrasion environments.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Weight	2-15 kg depending on size
Thickness	8-20 mm
Edge Angle	15-30 degrees
Blade Length	300-1200 mm
Surface Finish	Ra 0.8-1.6 μm
Flatness Tolerance	±0.1 mm/m
Operating Temperature	Up to 800°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 8580, ASTM A681

Parent Products

This component is used in the following industrial products

Dross Skimmer

A tool used to remove dross (oxidized solder and impurities) from the surface of molten solder in a solder pot.

View Product Details

Engineering Analysis

Risks & Mitigation

Thermal fatigue cracking
Edge deformation at high temperatures
Chemical corrosion from molten salts
Improper installation causing uneven wear

FMEA Triads

Trigger: Thermal cycling beyond material limits
Failure: Micro-cracking and eventual fracture
Mitigation: Implement temperature monitoring and controlled cooling cycles

Trigger: Abrasive particles in dross
Failure: Accelerated edge wear and loss of skimming efficiency
Mitigation: Use hardened coatings and implement pre-filtration of contaminants

Trigger: Improper mounting alignment
Failure: Uneven wear and incomplete dross removal
Mitigation: Use precision alignment fixtures and regular inspection protocols

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

±0.15 mm dimensional tolerance, ±0.5° angular tolerance

Test Method

Dimensional verification per ISO 2768, hardness testing per ASTM E18, high-temperature performance testing per simulated operating conditions

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

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Inspection readiness

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

Supplier transparency

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Manufacturers of Skimming Blade

Manufacturer profiles associated with Skimming Blade.

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Compiled and source-reviewed by the CNFX editorial team. Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review

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Frequently Asked Questions

How often should skimming blades be replaced?

Replacement frequency depends on operating conditions, typically 2-6 months with regular maintenance. Factors include metal type, temperature, and dross volume.

Can skimming blades be sharpened or refurbished?

Yes, most blades can be re-sharpened 3-5 times before replacement if the base material integrity remains. Specialized grinding maintains the critical edge geometry.

What causes premature blade wear?

Common causes include improper angle adjustment, excessive pressure, thermal cycling beyond specifications, and abrasive contaminants in the dross.

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.

Skimming Blade