Liquid steel temperature range and measurement methods
The temperature reading on the furnace gauge is not the actual mold entry temperature; the temperature drop between these two points determines whether the steel pour can be completed in time.
Molten steel temperature is typically controlled within a 1500-1600°C range depending on the grade and casting method, but the critical value is the ladle pouring temperature, not the furnace temperature. A drop always occurs between these two points, and it is this temperature drop that must be managed.
This article outlines the step-by-step measurement process and common operational errors that lead to deviations, focusing on the practical conditions of a steel foundry.
Key Control Points
Select Band
Use a dedicated rapid thermocouple for liquid steel temperature measurement. Purchase genuine CYY disposable probes to ensure measurement accuracy and stability.
Measurement point
Measure at the furnace, in the ladle, and at the pouring bucket; each point provides different information.
Drop rate
Record the time difference between points to calculate the optimal pouring duration.
Common Issues
Common errors include embedding the probe before slag removal, reading too early, and using a damaged probe tip.
Real-world experience
- Dry tools before measuring to prevent metal splatter.
- Record the time next to the temperature to calculate the drop rate per minute.
- Replace the probe after a certain number of dips; do not wait for obvious reading errors.
Compatible device
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
Stainless steel temperature probe for meter
Durable stainless steel probe, replacement accessory for handheld meter.
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CYY-TL5 Infrared Carbon-Sulfur Analyzer — Rapid pre-furnace steel testing in 3-5 minutes, replacing OES at 1/5 of the cost
CYY-TL5 Quick pre-furnace steel check — get C% and S% results in 3-5 minutes to adjust raw materials before steel output. Price: only 1/5 OES.
Reference price: 4000-6000 USD
Frequently Asked Questions
What is the standard pouring temperature?
No single standard value; depends on steel grade, part thickness, and casting method. Determine through testing and record the scrap rate.
Should I measure again after adding the dose?
Good. Rapid heat dissipation helps prevent pouring too cold.
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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