Metallurgy is often associated with the image of factories filled with blazing furnaces, where temperatures can reach thousands of degrees Celsius. In these intense conditions, refractory materials are essential. Daiwa Heavy Lance, with its super thick refractory coating, is designed to withstand these extreme temperatures, exceeding 2,000oC, while also resisting wear and chemical corrosion. If you want to know what makes Daiwa Heavy Lance so exceptionally heat and thermal shock resistant, read the blog below to find out!
What is Daiwa Heavy Lance?
Daiwa Heavy Lance is a type of lance pipe made from heat-resistant calorized steel pipe with a super thick refractory coating, 15 to 30 times thicker than conventional coatings. This coating provides excellent resistance to heat and thermal shock.
Daiwa Heavy Lance is commonly used to blow oxygen into Electric Arc Furnace (EAF), Ladle Furnace (LF), or in the VOD process, and to blow argon into the VAD process during the production of alloy and stainless steel.
Other than the mentioned applications above, Daiwa Heavy Lance can also be flexibly applied for the applications that require high heat resistance and thermal shock resistance.
What is the Structure of Daiwa Heavy Lance?
Daiwa Heavy Lance consists of:
- A heat-resistant steel core (Daiwa Calorized Lance) that can tolerate temperatures over 2,000°C.
- An outer layer of special thick refractory coating, including materials like aluminum oxide and silica, for superior thermal shock resistance.
What Experience Will You Have When Using Daiwa Heavy Lance?
Added Weight
Daiwa Heavy Lance's super thick refractory coating may add a bit of weight, but it's a worthwhile trade-off. The coating makes the material stronger and more resistant to deformation in extreme heat conditions.
Enhanced Heat and Thermal Shock Resistance
Put an end to the experience of using rigid pipes that are prone to bending or deformation during argon blowing and liquid steel stirring in the refining process.
Leave behind the risk of lance breaking or cracking due to thermal shock when moving the lance between hot and cold environments.
Daiwa Heavy Lance, reinforced with a special refractory coating, effectively protects and maintains the core's rigidity and durability when exposed to thousands of degrees Celsius inside the furnace. Additionally, Daiwa Heavy Lance can be reused multiple times for many heating times thanks to its resistance capability.
Reduced Consumption
A great thing about Daiwa Heavy Lance is that you won't have to replace the pipe as often. The special coating is so thick and durable that it lasts much longer, resulting in a significant reduction in lance consumption per month. This means operators can now shift their focus from routine maintenance to more value-added activities like process optimization and reporting.
Extended Lifespan
The combination of superior heat resistance and reduced consumption also translates to a longer lifespan. For specific data under various metallurgical conditions, please contact us to examine its lifespan yourself by conducting a durability test with our samples.
Conclusion
Previously, we've briefly shared the refractory composition of Daiwa Heavy Lance, a crucial factor that enhances its heat resistance, thermal shock resistance, hardness, and ability to withstand deformation in high-temperature furnaces.
What we hope is that by using the appropriate refractory materials for lancing, you can improve your furnace's operating efficiency, reduce pipe replacement time, and minimize unwanted issues such as cracking and breakage during operation.
If you have any specific requirements for product specifications (e.g., diameter, thickness, etc.) or want to learn about minimum order, effective ways of use, please don't hesitate to contact us via the link below. We are here to support you.
