Standard probe
Records temperature-time and cooling-rate-temperature response for the stated probe, concentration, bath temperature and relative-motion condition.
Published Patent Application
Quench cooling measurement and process optimisation starting from the real workpiece
A standard probe describes how a quenchant responds under stated conditions; the internal temperature of the real workpiece shows how the production part actually cools. Anran DHT checks those internal curves against post-quench hardness, microstructure and properties to build a qualitative, quantitative and repeatable cooling basis.
Why Real Workpiece Data
A standard-probe result is not the cooling result of a production workpiece
Probe testing is the baseline for the medium. Material, effective section, geometry, surface, loading and relative motion determine heat transfer in the real part.
Real workpiece
Internal points record cooling below the surface and in the core under the actual section, geometry, loading and tank-flow conditions.
Post-quench result
Only by checking internal curves against hardness distribution, microstructure and property tests can the cooling interval be judged against the workpiece target.
Organic Quenchant Interface
The surface film changes heat transfer on the real workpiece
When a water-based organic polymer quenchant contacts a hot workpiece, thermal decomposition and burn-off occur and a protective film forms on the surface. That film changes interfacial heat transfer. Its effect also changes with medium condition, surface state, size, temperature, kinematic viscosity and relative motion. A standard-probe curve therefore cannot replace a real-workpiece surface or core curve without validation.
Medium baseline
Use a standard-probe curve to identify the response of the current sample under its stated conditions.
Internal measurement
Place sensors at representative positions and record the cooling intervals of the production workpiece.
Result check
Relate the curves to hardness, microstructure and property tests to identify inadequate hardening, cracking and non-uniformity risks.
Operating window
Fix medium, temperature, concentration, kinematic viscosity, relative motion, loading and transfer as a traceable window.
Data Classification
The three curve types must be labelled separately
Standard-probe measured curve
Measured by Anran, but valid only for the stated probe, sample and test conditions.
Software-predicted curve
Calculated from the stated model and inputs; it is a prediction, not a measurement.
Real-workpiece internal measured curve
Recorded at internal points in the production workpiece and used to assess the actual cooling process.
Without an explicit and validated relationship, the three data types cannot be converted, substituted or merged.
Patent Application Status
Chinese invention-patent application published
Application title
Quench Cooling Process Optimisation Method Based on Cooling-rate Testing and Hardness Prediction
Application number
202610403517.8
Applicant: Luoyang Anran S&T Co., Ltd.
Publication status
The CNIPA notice confirms publication in the Patent Gazette on 30 June 2026. This page does not describe application publication as patent grant.
Search the official system with application number 202610403517.8.
Method Boundary
Only confirmed technical logic is published
No unsupported conversion
A standard-probe curve is not converted into a workpiece curve or hardness distribution without a relationship validated on real workpieces.
No invented coefficients
Quantitative relationships among film, concentration, bath temperature, kinematic viscosity and relative motion remain governed by the patent method and project measurements.
Boundary ends at quench result
The system assesses microstructure and properties at the end of quenching. Tempering is set separately by the user from the quench result and product requirements.
Check the quench cooling interval with real-workpiece data
Start with internal-temperature measurement, cooling-characteristic testing or the quench cooling interval report.