INDUSTRY COMPONENT

Rim/Lip

The rim or lip of a crucible body, designed for controlled pouring and structural integrity in high-temperature melting applications.

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Component Specifications

Definition
The rim or lip is a critical structural component of a crucible body, typically forming the upper edge where molten material is poured. It is engineered to withstand extreme thermal cycling, chemical corrosion from molten metals or materials, and mechanical stress during handling. The design ensures smooth pouring without dripping, maintains crucible shape under load, and often includes features for secure lid placement or handling tool engagement.
Working Principle
The rim/lip functions by providing a reinforced edge that distributes thermal and mechanical stresses, preventing cracking or deformation. During pouring, its geometry controls fluid flow to minimize turbulence and spillage. It often acts as a sealing surface for lids to reduce heat loss and contamination, and may include notches or lips for ergonomic handling with tongs or lifters.
Materials
High-alumina refractory ceramic (e.g., 85-99% Al2O3), silicon carbide (SiC), graphite, or fused silica, chosen based on operating temperature (up to 1800°C), chemical resistance, and thermal shock stability. Often coated with anti-wetting agents like boron nitride.
Technical Parameters
  • Lip Thickness 10-25 mm
  • Outer Diameter 200-500 mm
  • Pouring Spout Angle 30-45 degrees
  • Thermal Shock Resistance >200 cycles
  • Max Operating Temperature 1600°C
Standards
ISO 13765-2, DIN 51045

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Rim/Lip.

crucible rim crucible lip melting equipment refractory component high-temperature pouring industrial crucible foundry parts ceramic rim pouring spout Rim/Lip Rim/Lip in Non-Metallic Mineral Product Manufacturing

Parent Products

This component is used in the following industrial products

Crucible Body

The main structural container of a crucible that holds materials during high-temperature processing.

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Engineering Analysis

Risks & Mitigation
  • Thermal cracking from rapid temperature changes
  • Chemical erosion from molten metals/slags
  • Mechanical failure during handling or pouring
  • Poor pouring control leading to spills or oxidation
FMEA Triads
Trigger: Thermal stress exceeding material limits
Failure: Cracking or spalling of the rim
Mitigation: Use materials with high thermal shock resistance; implement gradual preheating/cooling cycles
Trigger: Chemical attack from molten materials
Failure: Erosion or corrosion weakening the lip
Mitigation: Select chemically inert materials; apply protective coatings like boron nitride
Trigger: Impact during handling
Failure: Chipping or breakage
Mitigation: Design with reinforced edges; train operators on proper tool use and handling procedures

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
±1.5 mm on critical dimensions per ISO 13765-2
Test Method
Dimensional inspection via calipers, thermal cycling tests, and non-destructive testing for cracks

Buyer Feedback

★★★★☆ 4.9 / 5.0 (31 reviews)

"The Rim/Lip we sourced perfectly fits our Non-Metallic Mineral Product Manufacturing production line requirements."

"Found 57+ suppliers for Rim/Lip on CNFX, but this spec remains the most cost-effective."

"The technical documentation for this Rim/Lip is very thorough, especially regarding technical reliability."

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Frequently Asked Questions

What is the primary function of a crucible rim/lip?

It ensures controlled pouring of molten materials, provides structural support to prevent cracking, and often interfaces with lids or handling tools.

How do material choices affect rim/lip performance?

Materials like high-alumina ceramic offer excellent thermal shock resistance, while graphite provides superior chemical inertness; selection depends on the molten material's corrosiveness and temperature.

Can rim/lip designs be customized for specific applications?

Yes, designs vary by pouring rate requirements, crucible size, and handling methods—common customizations include spout shapes, reinforcement ribs, or tool engagement features.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

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Reinforcement Band (if applicable) Side Walls