CYY-QC2 Carbon-Silicon Analyzer Cup for Molten Iron Analysis

For a foundry, knowing the approximate condition of molten iron before pouring can make a significant difference to production control.

Carbon and silicon are two of the most important elements in cast iron production. Their levels influence solidification behavior, graphite formation and the final properties of gray and ductile iron.

CYY-QC2 is a square sampling cup developed for compatible Carbon-Silicon Analyzer and thermal analysis applications.

It is the main square cup configuration recommended by Changyouyi for suitable CYY carbon-silicon analyzer applications.

What Does a Carbon-Silicon Analyzer Cup Do?

A Carbon-Silicon Analyzer Cup is used together with a compatible analyzer to obtain thermal information from a small molten iron sample.

The basic procedure is simple:

Step 1 – Take a molten iron sample

A furnace operator takes a small amount of molten iron from the furnace or ladle.

Step 2 – Pour into the sampling cup

The molten iron is poured into the CYY-QC2 cup.

Step 3 – Measure the cooling curve

As the molten iron cools and solidifies, the thermal sensor records the temperature change.

Step 4 – Analyze the thermal data

The Carbon-Silicon Analyzer processes the cooling curve.

Step 5 – Obtain analytical values

Depending on the instrument and calibration, the system can calculate or evaluate:

• C% – Carbon Content

• Si% – Silicon Content

• CEL / CE – Carbon Equivalent

• Liquidus Temperature

• Eutectic-related parameters

• Undercooling

• Cooling Curve Characteristics

Thermal-analysis cups are commonly described in the international foundry market as carbon cups, CE cups, sampling cups or thermal analysis cups for determining carbon equivalent, carbon and silicon in molten cast iron.

CYY-QC2 – The Main Square Cup for CYY-LK Applications

Among Changyouyi's square cup options, CYY-QC2 is positioned as the main practical choice for compatible CYY carbon-silicon analyzer applications.

It provides a balance between:

Stable application performance + practical design + reasonable consumable cost

For customers purchasing a CYY-LK series carbon-silicon analyzer with a square-cup configuration, CYY-QC2 is the standard direction recommended by Changyouyi.

Why Use a Dedicated Sampling Cup?

A common mistake when purchasing thermal analysis consumables is to focus only on the external shape.

Two products may both be called:

“Square Sampling Cup”

but their internal construction and thermal behavior may be different.

A thermal analysis cup is part of the measurement system.

Its:

• Geometry

• Internal structure

• Refractory material

• Sensor configuration

• Thermal response

• Manufacturing consistency

can influence the measurement process.

Therefore, customers should select a cup according to the instrument and intended analytical application, rather than simply purchasing the cheapest cup with the same external shape.

CYY-QC2 for Gray Iron and Ductile Iron Foundries

CYY-QC2 can be used in compatible applications involving:

Gray Cast Iron

For furnace-front monitoring of carbon and silicon-related parameters.

Ductile Iron

For base iron and molten metal process control before or during the casting process, depending on the sampling and analysis procedure.

General Cast Iron

For foundries requiring rapid thermal-analysis feedback from molten iron.

Thermal analysis is particularly useful when a foundry needs information quickly enough to make a process adjustment before pouring.

Carbon Cup, CE Cup or Thermal Analysis Cup?

International customers may search for the same type of product using different terminology.

For example:

This is why Changyouyi uses several related industry terms throughout its international product information rather than relying on only one product name.

CYY-QC2 as a Consumable for Carbon-Silicon Analysis

CYY-QC2 is part of the Changyouyi consumable system:

CYY-CE Series

CYY-CE1 / CYY-CE2 / CYY-CE3

Round CE / Carbon-Silicon Analysis Cups.

CYY-SG Series

CYY-SG1 / CYY-SG2 / CYY-SG3

Thermal Analysis Cups for spheroidization/nodularity-related applications.

CYY-QC Series

CYY-QC1 / CYY-QC2 / CYY-QC3

Square Quick Thermal Analysis Cups.

Together, these products form a consumable range for different molten iron analysis and foundry process-control applications.

Why Changyouyi Supplies Both Analyzer and Cup?

Changyouyi is not only a sampling-cup supplier.

The company's product range includes CYY carbon-silicon analyzers and molten iron thermal-analysis equipment, allowing the consumable design to be considered together with the instrument application.

For overseas customers, this can simplify:

• Model confirmation

• Sample testing

• Consumable selection

• Replacement purchasing

• Technical communication

• Long-term supply

Recommended Before Ordering

For international orders, please send us:

Cup photo + package label photo + analyzer photo

This is especially important when customers are replacing an existing supplier's sampling cup.

Changyouyi will check the information and confirm the recommended CYY model before shipment.