stopper
Precise Flow Control
Adjust the gap between the stopper head and the nozzle to control molten steel flow, ensure stable pouring, and improve slab quality.
Prevent Vortices and Slag Entrapment:
Effectively prevent vortex formation, reduce the risk of slag entering the nozzle, and ensure molten steel cleanliness.
Excellent Oxidation Resistance
Good sealing reduces air ingress–induced oxidation issues, ensuring molten steel quality.
High Strength & Erosion Resistance
Use high-quality materials and isostatic pressing to ensure high strength and resistance to scouring.
| Brand | ZTM-SLT | ZTM-SMT | ZTM-SZT | ZTM-SMAT | ||||
| Materials | Al2O3-C Stopper | MgO-C Stopper | ZrO2-C Stopper | Spinel-C Stopper | ||||
| Part | Tips | Body | Tips | Body | Tips | Body | Tips | Body |
| Al2O3 (%) | 72 | 45 | — | 45 | — | 50 | 55 | 45 |
| C+SiC (%) | ≥11 | ≥23 | ≥11 | ≥23 | ≥12 | ≥23 | ≥1 | ≥23 |
| ZrO2 (%) | — | — | — | — | ≥60 | — | — | 一 |
| MgO (%) | — | — | ≤65 | — | — | — | ≥10 | — |
| Bulk Density (g.cm-3 ) | ≥2.80 | ≥2.45 | ≥2.65 | ≥2.45 | ≥3.40 | ≥2.45 | ≥2.70 | ≥2.45 |
| Apparent Porosity (%) | ≤17 | ≤17 | ≤17 | ≤17 | ≤17 | ≤17 | ≤17 | ≤17 |
| Cold Crushing Strength (Mpa) | ≥25 | ≥22 | ≥20 | ≥22 | ≥20 | ≥22 | ≥25 | ≥22 |
| Modulus of Rupture (Mpa) | ≥8 | ≥7 | ≥5 | ≥7 | ≥5 | ≥7 | ≥7 | ≥7 |
| Thermal Shock Resistance (Cycle) | ≥5 | ≥5 | ≥5 | ≥5 | ≥5 | ≥5 | ≥5 | ≥5 |
Customized Stopper
ZTMaterials® provides comprehensive customization services based on each steel plant’s production needs to ensure stopper rods perfectly fit your production line and improve efficiency and performance.
Full Customization to Meet Your Unique Needs
- Material Customization: Select the optimal refractory materials based on steel grade and casting conditions.
- Size Customization: Customize stopper length and head dimensions to reduce turbulence and achieve optimal flow control.
- Special Customization: Provide unique design solutions according to specific customer requirements.
ZTMaterials®’s experienced technical team provides professional support and guidance to ensure correct use of our products and achieve optimal performance. We can customize stopper rods according to your continuous casting parameters to optimize molten steel flow and ensure slab quality.
Optimizing the Continuous Casting Process
Let our technical experts help you find the perfect stopper solution.
Contact us today for a customized quote!
