GB/T 33238-2016 in English
VALIDStirring head for desulphurization of hot metal
- Issued on:2016-12-13
- Implemented on:2017-09-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$97.00
《GB/T 33238-2016铁水脱硫用搅拌头》由TC183（全国钢标准化技术委员会）归口，TC183SC17（全国钢标准化技术委员会冶金非金属矿产品分会）执行，主管部门为中国钢铁工业协会。
Introduction
In-depth interpretation of the national standard for stirring heads for hot metal desulfurization
1. Background and significance of standard formulation
GB/T33238-2016 "Stirring heads for hot metal desulfurization" is a technical specification for functional refractory products used in hot metal pretreatment desulfurization processes. This standard was proposed by the China Iron and Steel Association to ensure the performance and quality of stirring heads to meet the needs of hot metal desulfurization processes.
2. Comparative analysis of standard frameworks
| Chapter | Content Overview | Standard Requirements |
|---|---|---|
| Scope | Scope of application and normative references | Applicable to stirring heads for hot metal pretreatment desulfurization, citing relevant refractory test method standards. |
| Terms and Definitions | Clarify key terms | Defines "stirring heads for hot metal desulfurization" as functional products composed of steel structure and refractory materials. |
| Grade classification | According to the alumina content, it is divided into two grades | JBL-65 (≥65% Al₂O₃) and JBL-60 (≥60% Al₂O₃), which are suitable for different working conditions respectively. |
3. Technical requirements and performance indicators
Table 1: Comparison of physical and chemical indicators of mixing head refractory materials
| Project | JBL-65 Index | JBL-60 Index |
|---|---|---|
| Alumina content (%) | ≥65 | ≥60 |
| Volume density (g/cm³) | ≥2.65 | ≥2.60 |
4. Implementation suggestions and precautions
- Selection suggestions:Choose the appropriate grade according to the requirements of the hot metal desulfurization process, and give priority to JBL-65 for high-strength working conditions.
- Installation and maintenance:Ensure the stable connection between the mixing head and the steel structure, and regularly check the wear of the refractory layer.
- Quality control:Strictly carry out physical and chemical performance inspections and dimensional deviation inspections in accordance with standards.
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