CYY-LK7 Cast Iron, Gray Iron, and Ductile Iron Analyzer

In the casting industry, controlling molten iron quality is critical to determining final product quality. Gray cast iron and ductile iron are the two most common casting types, each with distinct process control requirements.

CYY-LK7 Intelligent Carbon-Silicon-Manganese Analyzer is specially designed for gray and ductile iron foundries, providing rapid composition analysis and quality assessment within 90 seconds.

What is a gray iron and ductile iron analyzer?

The gray and ductile iron analyzer is a device used to evaluate the chemical composition and metallurgical properties of molten iron during cast iron production.

This device uses cooling curve-based thermal analysis to determine: - Carbon Equivalent (CEL) - Carbon Content (C%) - Silicon Content (Si%) - Manganese Content (Mn%) - Nodularity Ratio (for ductile iron) - Predicted Tensile Strength - Predicted Brinell Hardness

Why do gray iron and ductile iron require specialized analysis?

Gray cast iron and ductile iron have different microstructures and mechanical properties, requiring distinct process controls.

Gray cast iron: Carbon exists as flake graphite, providing excellent machinability and damping capacity. Controlling the carbon-silicon balance is critical to maintaining consistent metallurgical conditions.

Nodular iron: Carbon exists as spherical graphite, providing higher tensile strength and ductility. Beyond composition, controlling nodularity is critical.

CYY-LK7 supports both types of cast iron with dedicated analysis features.

Analytical specifications for gray cast iron and ductile iron

CYY-LK7 supports the following measurement ranges: - Carbon Equivalent (CEL): 2.50-4.80%, accuracy ±0.08% - Carbon (C%): 2.30-4.20%, accuracy ±0.05% - Silicon (Si%): 0.60-3.80%, accuracy ±0.10% - Manganese (Mn%): 0.10-1.40%, accuracy ±0.15% - Nodularity Ratio: 60-99%, accuracy ±5% (for ductile iron) - Tensile Strength: 150-400 MPa, accuracy ±10 MPa - Brinell Hardness: 100-300 HB, accuracy ±10 HB

Thermal analysis for gray cast iron

For gray iron production, balancing carbon and silicon is critical to maintaining consistent metallurgical conditions.

CYY-LK7 can provide data including CEL, C%, Si%, and Mn%. This enables production staff to compare the current melt against required process targets.

The operator can use the results to: - Adjust melt composition before pouring - Ensure proper formation of flake graphite structure - Maintain machinability and damping properties - Reduce casting defects such as shrinkage or porosity

Thermal analysis for spheroidal graphite iron

Ductile iron production requires additional process controls compared to gray iron. In addition to composition, the foundry must monitor nodularization efficiency.

CYY-LK7 includes the quenching ratio measurement function (60-99%) and can also provide predicted tensile strength (150-400 MPa) and Brinell hardness (100-300 HB).

This enables the analyzer to serve as part of a broader spheroidized iron quality control process: - Verify adequate spheroidization treatment - Predict mechanical properties prior to casting - Adjust the process if spheroidization does not meet targets - Reduce testing and defects in spheroidized iron production

Special mold for gray and ductile iron

Accurate sampling is essential for reliable thermal analysis. CYY-LK7 uses purpose-built sample cups.

To measure composition (applicable to both gray and ductile iron), use a dedicated composition analysis cup containing tellurium particles.

To measure the spheroidization rate and predict mechanical properties (primarily for ductile iron), use a test cup without tellurium particles.

The operator should select the appropriate sample cup based on the required test. This distinction is particularly important when the same equipment is used for both gray cast iron and ductile iron production.

From analysis results to production adjustments

A foundry analyzer is useful not just for displaying numbers. Results should guide the production team on what to do next.

CYY-LK7 supports automatic or manual calculation of additional components required based on configured production requirements.

The production process can become: Measure → Compare → Calculate → Adjust → Recheck → Cast

This approach can help reduce unnecessary trial and error during molten iron preparation for both gray and ductile cast iron.

Store data for product traceability

Foundries typically handle multiple batches daily. CYY-LK7 supports data storage and historical record review.

The system can store more than 5.000 measurement results and supports playback of historical data and cooling curves. Optional data export interfaces also enable transmission via USB or RJ45.

For gray iron and ductile iron foundries, this creates opportunities for: - Batch-by-batch comparison - Process trend analysis - Quality records - Historical review - Production traceability - Process improvement

Typical Applications for Gray and Ductile Iron

CYY-LK7 can be used in various cast iron production environments:

Gray Iron Foundry: - Control C, Si, Mn, and CEL content - Ensure consistent flake graphite structure - Maintain machinability and damping characteristics

Ductile Iron Foundry: - Analyze composition and evaluate nodularization - Monitor nodularization rate 60-99% - Predict tensile strength and Brinell hardness

Automotive Foundry: - Monitors molten iron for casting and automotive components - Meets strict material requirements

Valve Casting Workshop: - Check molten iron composition before casting the valve body - Ensure density and mechanical properties

Pipe Foundry: - Supports composition control in ductile iron pipe production - Ensures consistent quality

Machine Foundry: - Monitor C, Si, Mn, and CEL during production - Enhance machinability of cast products

Integrated Foundry Technology: - Rapidly check molten iron quality across different batches - Flexible for both gray and ductile iron

Technical Specifications CYY-LK7 - Product Code: CYY-LK7 - Model: Intelligent Carbon-Silicon-Manganese Analyzer - Measurement Principle: Cooling Curve Thermal Analysis - Analysis Time: Approximately 90 seconds - Display: 15-inch Color TFT Screen - Data Storage: Over 5.000 measurement results - Data Export: USB or RJ45 (optional) - Operating Temperature: 0-40°C - Humidity: <80% - Power Supply: AC 220V, 50Hz - Power Consumption: 40W - Weight: 13 kg (net), 17-18 kg (shipping) - HS Code: 9031809090 - Certification: CE

Frequently Asked Questions

What is a gray and ductile iron analyzer? A gray and ductile iron analyzer is a device used to evaluate the chemical composition and metallurgical properties of molten iron during cast iron production, supporting both gray and ductile iron applications.

CYY-LK7 can analyze both gray cast iron and ductile iron? Yes. CYY-LK7 is designed to analyze both gray cast iron and ductile iron, with dedicated spheroidization ratio measurement functionality for ductile iron.

CYY-LK7 measures which parameters? It can analyze Carbon Equivalent, Carbon, Silicon, Manganese, and Alloy Ratio, and provide predicted tensile strength and Brinell hardness.

How long does analysis take? Typical analysis time is approximately 90 seconds.

Which cup is used for gray and ductile iron? To measure composition, use a specialized cup with tellurium granules. To measure the nodularization ratio (ductile iron), use a cup without tellurium granules.

Does the device store measurement results? Yes. The system supports recording historical data and can store more than 5.000 measurement results.

Changyouyi CYY-LK7 — Casting analysis solution for gray and ductile iron foundries

If you are looking for: - Grey iron analyzer - Ductile iron analyzer - Cast iron analyzer - Molten iron temperature analyzer - Iron composition analyzer - Or foundry process analyzer

CYY-LK7 provides integrated solutions for rapid molten iron quality control, covering both gray and ductile iron.

Nanjing Changyouyi Analysis Instrument Co., Ltd. provides analytical equipment for foundry and metal melting applications.

Contact us for technical specifications CYY-LK7,, sample cup information, application details, and a quote.

Simple operation: plug in, then press a single button to start. Pour molten iron into the sample cup for automatic analysis and data logging. See the included multi-language user manual for detailed instructions after purchase.

CYY-LK7 — Rapid analysis for gray and ductile iron. Better process control. More information before casting.