Select a measuring device for high-temperature environments
In the pouring area, equipment fails due to heat, dust, and impact rather than electrical circuits.
In the 1300-1700°C range, the measuring device must withstand radiant heat, dust, and electromagnetic interference simultaneously. Although non-contact infrared absorption measurement is used, results are often unstable due to the presence of slag on the liquid metal surface and varying emissivity.
For production decision-making, the reliable approach is to measure contact temperature using thermocouples, combined with equipment protection and strategic sensor placement to minimize risks for operators.
Key Control Points
Measurement Principle
Contact measurement captures data for the entire metal block; infrared only measures the surface and is suitable for reference.
Protective Material
Select a thermocouple with an appropriate metal protective sleeve and immersion time.
Station Setup
Place the device away from the oven opening, with a heat shield and tool storage area.
Safety
Heat-resistant gloves, shields, and operating distance are required during measurement.
Real-world experience
- Do not place electronic devices near the stove opening for extended periods. Radiant heat can damage the screen and circuitry.
- Mark the required insertion depth on the probe tip for consistent operation between similar shifts.
- Periodically inspect cables and connectors, as this is a common failure point in hot environments.
Compatible device
CYY-W600 Large-Screen Molten Steel Thermometer
Accurately measures molten steel temperature with a large 5-inch display for easy remote reading. CE certified with English interface.
Reference price: 400-500 USD
CYY Fast-Response Electric Thermocouple Probe — Custom Multi-Immersion Splash-Resistant
CYY reusable, splash-proof thermocouple probe — flagship product, recommended by default with CYY temperature meter. Model KS-T4, KB-T4, HR, OR, 9R set; measures steel, cast iron, copper, aluminum.
Reference price: 0.7-2 USD
CYY-W660 Wireless Large-Screen Steel Liquid Temperature Gauge
Wireless molten steel temperature measurement with a large 5-inch display for easy remote reading. CE certified, English interface panel.
Reference price: 500-600 USD
Frequently Asked Questions
Can infrared measurement be used for molten metals?
Suitable for quick reference only; do not use as a basis for pouring decisions, as surface emissivity varies with slag layer thickness.
Does high temperature cause the device to wear out faster?
Yes, if the unit is placed near a heat source. Proper positioning and shielding can significantly extend its lifespan.
Related topics
- Measuring molten steel temperature requires specialized equipment
- Select a large-screen monitor for the large furnace
Reference content from Changyouyi's technical article: original post on Sohu.
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