Distortion & Cracking
Non-uniform cooling rates induce thermal stresses exceeding the material's yield strength, causing warping or cracking.
Heat Treatment Fluid Solutions
Mastering the Quench: Precision Fluids for Metallurgical Excellence
Optimize hardness, minimize distortion, and maximize toughness. KERUN delivers tailored thermal processing solutions that transform metallurgical potential into consistent part performance.
Process Challenges
The High-Stakes Nature of Heat Treatment
In heat treatment, there is no room for error. The few seconds of quenching determine the part's entire service life. Variability leads to scrap, warranty claims, and compromised safety.
Soft Spots & Insufficient Case Depth
Soft spots or insufficient case depth due to poor agitation, degradation, or incorrect quench severity (H-value).
Oxidation & Decarburization
High-temperature exposure leads to surface scaling and carbon loss, degrading fatigue life and surface finish.
Reduced Media Life
Thermal oxidative thickening or thinning of oils, and bacterial growth in polymers, increase operating costs.
KERUN Solution Approach
Dialing in the Quench: How We Lock Down Cooling Rates to Eliminate Distortion
Mapping the Transformation Window
We analyze your alloy's Time-Temperature-Transformation (TTT) diagram and component geometry. By identifying the Critical Cooling Rate (CCR), we pinpoint the exact moment martensite begins to form, allowing us to tailor the fluid's thermal extraction profile.
Recommend the Fluid System
We formulate to hit specific 'H-values' (Quench Severity). Unlike one-size-fits-all oils, we adjust the vapor film collapse point and convection intensity to ensure through-hardening without inducing thermal gradients that cause cracking.
Stabilizing the Agitation Dynamics
During commissioning, we optimize pump speeds and nozzle angles. Proper agitation is critical to scrub the vapor blanket and maintain uniform bath temperature, ensuring the quench is consistent from the first part to the last.
Manage Performance through LMS
Via our LMS program, we track viscosity and Acid Number trends. As thermal oxidation occurs, we detect subtle shifts in the cooling curve before they impact part quality, triggering corrective actions to restore optimal performance.
Product Systems
Recommended Product Systems for Reliable Process Performance
Each product family is positioned as part of a process solution, supported by technical review, testing, and operating guidance.
Featured
Controlled-rate cooling Fluid
Precise cooling control minimizes distortion and cracking for consistent heat treatment results.
Featured
Fast & Bright Quenching Oil
Combines rapid cooling and bright finish for enhanced part surface quality.
Featured
Fast Quenching Oil
Fast cooling with excellent stability meets high-efficiency quenching requirements.
Typical Applications
Built for Critical Components and Repeatable Production
Heat treatment fluid performance is especially important for parts where hardness, microstructure, distortion control, surface cleanliness, and stable delivery directly affect product value and customer audits.
- Automotive gears, shafts, bearings, fasteners, and transmission components
- Construction machinery parts, hydraulic components, pins, and structural components
- Wind power bearings, large rings, and high-load mechanical components
- Universal metal parts, precision components, tools, and equipment parts
- Aerospace and high-standard manufacturing parts requiring controlled process quality
Related Industry Applications with Proven Fluid Demand
Heat treatment performance is often connected to upstream machining, intermediate cleaning, and long-term fluid management.
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Discuss Your Heat Treatment Fluid Requirements with KERUN
Share your material, component, furnace type, quenching method, current fluid condition, and production challenges. KERUN’s technical team can help identify a suitable fluid system and lifecycle support plan.