For materials and heavy sections that require high cooling intensity. Measured cooling curves first define the medium capability; hardenability, CCT/TTT, effective section, tank and flow then define the production process.
Each selector controls both paths for that record—the temperature–time path and cooling-rate–temperature path—and its table row. The shared vertical axis is actual workpiece temperature; read time on the bottom axis and instantaneous rate on the top axis.
The nominal concentration and medium temperature match, but the timestamps, measured values and relative-motion notes differ. They are shown separately for direct comparison.
The vertical axis is actual workpiece temperature; the bottom axis is cooling time from 0–10 seconds; the top axis is instantaneous cooling rate from 0–300°C/s.
| Test record | Characteristic temperature / °C | Characteristic time / s | Temperature at max rate / °C | Maximum rate °C·s⁻¹ | V300 °C·s⁻¹ | t600 s | t400 s | t300 s | t200 s |
|---|---|---|---|---|---|---|---|---|---|
| 21-01-07 20:23 / 1:2 / 20°C / relative motion (recorded parameter 1000) | 799 | 0.10 | 730 | 298.5 | 92.3 | 0.8 | 1.8 | 2.7 | 4.3 |
| 21-01-07 20:27 / 1:2 / 20°C / no relative motion | 782 | 0.10 | 708 | 285.2 | 97.5 | 0.8 | 1.8 | 2.6 | 4.0 |
Both records show high cooling intensity at 1:2 medium concentration and 20°C.
Times to 300°C are 2.7 and 2.6s; times to 200°C are 4.3 and 4.0s.
Medium- and high-carbon Cr-Mo steels and related large-section materials; actual chemistry and hardenability data are required.
Large liners, castings, forgings and heavy sections; geometry, section change and loading govern risk.
Quenching or accelerated-normalizing targets may be evaluated, but not without CCT/TTT, furnace and transfer conditions.
Cooling curves, internal temperature, first-article microstructure, hardness and distortion should share one batch record.
The two cooling-characteristic records were measured at 1:2 medium concentration and 20°C. The curves and table describe that test condition and are not directly extended to other concentrations, temperatures, materials or workpieces.
Production results also depend on material, section, heating and transfer, tank flow, fixture and inspection. Microstructure, hardness, distortion and cracking risk must be confirmed by a first-piece trial.
Use actual chemistry, CCT/TTT, section and target microstructure to define the required cooling path.
Confirm furnace uniformity, transfer, tank capacity, relative motion and heat rejection.
Adjust the medium window, support/loading and flow together instead of assigning every problem to formulation.
Correct the process with internal temperature, hardness profile, microstructure, NDT and dimensional results.
Answers are bounded by the measured test condition and the actual material, workpiece and equipment.
No. AR-UHS is a separate engineered high-intensity quenchant. AR-SAG is another product direction for SAG-mill liners and related large Cr-Mo workpieces.
Both use a 1:2 medium concentration and 20°C medium temperature. Record 20:23 has relative motion (recorded parameter 1000), while record 20:27 has no relative motion, so the records are shown separately.
Confirm material chemistry and hardenability, CCT/TTT, effective section, target structure and properties, furnace and transfer, tank capacity, relative motion, fixture and first-piece inspection.
Also state the target structure and hardness, current medium and main problem. We respond across quenchant, fixture, measurement and process layers.