Industry-Verified Manufacturing Data (2026)

Secondary Cooling System

Based on aggregated insights from multiple verified 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)
Engineering Reasoning
0.5-3.0 MPa (5-30 bar) at 15-35°C coolant temperature
Coolant pressure drops below 0.3 MPa (3 bar) or exceeds 3.5 MPa (35 bar), or coolant temperature exceeds 45°C
Design Rationale: Thermal stress-induced microcrack propagation in billet subsurface due to Leidenfrost effect at coolant temperatures above 45°C, causing localized reheating and solidification discontinuity
Risk Mitigation (FMEA)
Trigger Coolant pump impeller erosion from suspended alumina particles exceeding 50 μm diameter
Mode: Flow rate reduction to 60% of design specification within 72 hours
Strategy: Installation of hydrocyclone separators with 20 μm cutoff upstream of pump intake
Trigger Electrochemical corrosion at copper-nickel alloy nozzle interfaces due to pH drift below 7.2
Mode: Nozzle orifice diameter increase by 0.5 mm over 500 operating hours
Strategy: Implementation of automated pH monitoring with citric acid injection system maintaining 7.8-8.2 pH range

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 DNA

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

Verified manufacturers with capability to produce this product in China

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✓ 95% Supplier Capability Match Found

T Technical Director from Brazil Feb 11, 2026
★★★★★
"As a professional in the Basic Metal Manufacturing sector, I confirm this Secondary Cooling System meets all ISO standards."
Technical Specifications Verified
P Project Engineer from Canada Feb 08, 2026
★★★★☆
"Standard OEM quality for Basic Metal Manufacturing applications. The Secondary Cooling System arrived with full certification. (Delivery took slightly longer than expected, but technical support was excellent.)"
Technical Specifications Verified
S Sourcing Manager from United States Feb 05, 2026
★★★★★
"Great transparency on the Secondary Cooling System components. Essential for our Basic Metal Manufacturing supply chain."
Technical Specifications Verified
Verification Protocol

“Feedback is collected from verified sourcing managers during RFQ (Request for Quote) and factory evaluation processes on CNFX. These reports represent historical performance data and technical audit summaries from our B2B manufacturing network.”

11 sourcing managers are analyzing this specification now. Last inquiry for Secondary Cooling System from Mexico (1h ago).

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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 Specifications verified by CNFX Industrial Index (v2.6.03) for Basic Metal Manufacturing sector.

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