Structured Manufacturing Data (2026)

Secondary Cooling System

Based on aggregated insights from structured factory profiles within the CNFX directory, the standard Secondary Cooling System used in the Basic Metal Manufacturing sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.

Technical Definition & Core Assembly

A canonical Secondary Cooling System is characterized by the integration of Spray Nozzle Array and Cooling Water Header/Piping. In industrial production environments, manufacturers listed on CNFX commonly emphasize Stainless Steel (Nozzles, Headers) construction to support stable, high-cycle operation across diverse manufacturing scenarios.

A cooling system that controls the solidification rate of non-ferrous metal billets after initial solidification in continuous casting.

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Product Specifications

Technical details and manufacturing context for Secondary Cooling System

Definition
The Secondary Cooling System is a critical component of a Continuous Casting Machine for Non-Ferrous Metals. It is responsible for the controlled cooling of the metal strand after it exits the mold (primary cooling zone). This system manages the heat extraction rate to ensure proper solidification structure, prevent surface defects like cracks, and achieve the desired metallurgical properties in the final cast product. It typically operates on the solidified shell of the billet, bloom, or slab.
Working Principle
The system consists of multiple cooling zones (sprays or chambers) arranged along the casting strand's path. A coolant (typically water, water-air mist, or a specialized fluid) is precisely sprayed onto the metal surface. The flow rate, pressure, spray pattern, and temperature of the coolant in each zone are automatically controlled based on casting speed, alloy type, and desired thermal profile. This extracts heat uniformly to complete solidification and control the temperature gradient, minimizing thermal stress.
Common Materials
Stainless Steel (Nozzles, Headers), Carbon Steel (Piping, Framework), Copper Alloys (Spray Nozzles), Polymer/Composite (Spray Headers, Seals)
Technical Parameters
  • Typical strand cross-section dimensions (e.g., billet: 100-200mm, slab: thickness x width) (mm) Customizable
Components / BOM
  • Spray Nozzle Array
    Distributes coolant uniformly over the metal strand surface in a specific pattern (flat fan, full cone).
    Material: Stainless Steel, Copper Alloy
  • Cooling Water Header/Piping
    Manifold system that supplies coolant from the main pump to the individual spray zones and nozzles.
    Material: Carbon Steel, Stainless Steel
  • Flow Control Valves
    Regulates the flow rate and pressure of coolant to each spray zone, often automated via PLC.
    Material: Stainless Steel, Brass
  • Spray Chamber/Support Structure
    Encloses the spray area, contains splashing, and provides structural support for nozzles and piping.
    Material: Carbon Steel (frame), Stainless Steel (liners)

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Secondary Cooling System.

non-ferrous billet secondary cooling system continuous casting cooling control system stainless steel spray nozzle cooling copper alloy secondary cooling headers solidification rate control for billets

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Up to 10 bar (system operating pressure)
flow rate: 50-500 m³/h (coolant circulation capacity)
temperature: 20-80°C (coolant temperature range)
slurry concentration: Up to 15% solids by weight (for slurry-based systems)
Media Compatibility
✓ Aluminum alloys ✓ Copper alloys ✓ Zinc alloys
Unsuitable: Ferrous metals (steel/iron) - requires different cooling parameters
Sizing Data Required
  • Billet cross-sectional dimensions (mm)
  • Casting speed (m/min)
  • Required cooling intensity (kW/m²)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Corrosion-induced leakage
Cause: Chemical attack from coolant additives, dissolved oxygen, or pH imbalance leading to pitting and perforation of pipes and heat exchangers
Pump impeller cavitation
Cause: Insufficient net positive suction head (NPSH) due to clogged filters, low reservoir levels, or excessive pump speed causing vapor bubble formation and collapse
Maintenance Indicators
  • Unusual gurgling or hammering sounds in piping indicating air entrainment or cavitation
  • Visible rust-colored deposits or weeping at pipe joints and heat exchanger surfaces
Engineering Tips
  • Implement real-time water chemistry monitoring with automated dosing to maintain pH (8.5-9.5) and corrosion inhibitor concentrations
  • Install duplex filtration systems with differential pressure monitoring and scheduled rotation to prevent particulate-induced wear

Compliance & Manufacturing Standards

Reference Standards
ISO 1217:2009 (Displacement compressors - Acceptance tests) ANSI/ASHRAE 15:2022 (Safety Standard for Refrigeration Systems) DIN EN 378:2017 (Refrigerating systems and heat pumps - Safety and environmental requirements)
Manufacturing Precision
  • Coolant flow rate: +/-5% of design specification
  • Temperature control accuracy: +/-1.5°C across all cooling zones
Quality Inspection
  • Pressure decay leak test (per ISO 20486)
  • Coolant chemical composition analysis (ASTM D1122 for glycol concentration)

Factories Producing Secondary Cooling System

Manufacturer profiles with relevant production capability in China

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Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

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 secondary cooling system in continuous casting?

The secondary cooling system controls the solidification rate of non-ferrous metal billets after initial solidification, ensuring proper microstructure development and preventing defects like cracks or uneven cooling.

Why are copper alloys used for spray nozzles in these systems?

Copper alloys offer excellent thermal conductivity and corrosion resistance, making them ideal for spray nozzles that require efficient heat transfer and durability in continuous casting environments with water-based cooling.

How does the spray nozzle array affect billet quality?

The spray nozzle array provides uniform cooling distribution across the billet surface, preventing thermal stresses and ensuring consistent solidification, which directly impacts final product quality and reduces rejection rates.

Can I contact factories directly on CNFX?

CNFX is an open directory, not a transaction platform. Each factory profile provides direct contact information and production details to help you initiate direct inquiries with Chinese suppliers.

Data basis: CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks for Basic Metal Manufacturing.

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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