Heat Treatment

Your Trusted Expert in the Heat Treatment Industry

In heat treatment processes, the importance of quenching medium lies in its decisive impact on the final performance and quality of the workpiece. Since Kerun successfully developed its first quenching oil in 2000, we have continuously expanded our product portfolio to include quenching oils, polymer quenchants, salt bath quenchants, and anti-carburizing coatings. Today, Kerun proudly serves clients across diverse industries such as aerospace, automotive, and wind energy. We offer tailored heat treatment solutions based on the unique characteristics of each customer’s products, ensuring excellent performance and stable, controllable quality.
As a global leader in the heat treatment industry, Kerun is committed to driving innovation in process technology. Beyond product support, we emphasize the entire lifecycle of industrial fluids and provide a comprehensive suite of services including process simulation, quenching medium selection and customization, on-site precision management, and advanced technical support and training. These offerings are designed to help our heat treatment clients enhance their core competitiveness.

Process Optimization
At Kerun, our team of technical engineers and industry experts collaborates closely with clients to select the optimal quenching medium for various applications, achieving the following objectives:
• Meet required material performance
• Enhance operational efficiency
• Reduce overall costs
• Promote sustainable, green production

Quenching Oil

Quenching oil is a mineral oil-based cooling medium that, through the combination of base oils and additives, provides the cooling properties needed for ferrous metal quenching. It features excellent oxidation stability, long service life, and minimal deformation, making it suitable for various mechanical parts.
Polymer Quenchant

Polymer Quenchants are water-soluble solutions made from high molecular weight polymers with multiple functional additives. They offer controllable cooling performance and high environmental efficiency, ideal for heat treatment quenching of mechanical parts with strict environmental requirements.
Molten Salt Quenchant

Salt bath quenchant are formed from inorganic salts in different ratios, with relatively low melting points. Through process control, they achieve controllable cooling performance and enable martensitic or bainitic quenching. They effectively reduce workpiece deformation, suitable for martensitic graded quenching or bainitic isothermal quenching parts requiring high precision.
Blackening Agent

Blackening agent is a chemical used for metal surface treatment, primarily to form a black oxide layer on the metal surface. This process aims to provide rust and corrosion resistance as well as decorative effects, and it is applied to the surface treatment of various metal products.
Anti-Carburizing Coating

Anti-carburizing coatings are protective coatings designed to prevent carbon penetration in specific areas during metal heat treatment. They offer fast drying, resistance to peeling, environmental safety, and ease of application, making them suitable for large-scale or localized anti-carburizing treatments.

Class Example

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At Kerun, our R&D engineers and industry experts collaborate closely with our customers to determine the most suitable quenching medium according to different application requirements.

KR6180

This advanced, environmentally friendly, water-soluble quenching agent offers fast cooling rates across high, medium, and low temperatures.
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KR6580

This advanced, environmentally friendly, water-soluble quenching agent is designed to improve the heat treatment work environment and enhance the quenching quality of parts, specifically targeting the induction hardening industry.
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KR1129

This low-melting-point salt bath cooling medium is composed of highly pure nitrates and nitrites, with strictly controlled impurities such as carbonates, sulfates, and chlorides. Special processing methods ensure its stable cooling performance and long service life.
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PR507

A water-soluble, bright-finish, mildly alkaline blackening agent.
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PR520

The matte type residual heat blackening agent is a water-soluble, mildly alkaline blackening agent that is non-toxic and environmentally friendly. After blackening, the workpiece has a smooth, uniform appearance with a deep black matte finish, making it easy to apply oil in subsequent processes.
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PR506

The matte type residual heat blackening agent is a water-soluble, mildly alkaline blackening agent that is non-toxic and environmentally friendly. After blackening, the workpiece has a smooth, uniform appearance with a deep black matte finish, making it easy to apply oil in subsequent processes.
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PR508

The matte type residual heat blackening agent is a water-soluble, mildly alkaline blackening agent that is non-toxic and environmentally friendly. After blackening, the workpiece has a smooth, uniform appearance with a deep black matte finish, making it easy to apply oil in subsequent processes.
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KR-AC03L

The anti-carburizing coating is an environmentally friendly, water-based protective coating with excellent application properties and self-drying performance. It is non-corrosive to workpieces and safe for humans. Due to its exceptional wetting properties on metal surfaces, it has less stringent requirements for removing oil residue from workpiece surfaces compared to other coatings.
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Heat Treatment | professional Eco-Industrial Fluids manufacturer |

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Your Trusted Expert in the Heat Treatment Industry

Quenching Oil

Polymer Quenchant

Molten Salt Quenchant

Blackening Agent

Anti-Carburizing Coating

Class Example

Heat Treatment

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