Overview
Covering refining flux is a critical chemical agent in metallurgy, designed to improve metal quality during the refining process. It forms a protective layer over molten metal, preventing oxidation and absorbing impurities such as gases and non-metallic inclusions. Commonly used in aluminum and steel production, it enhances mechanical properties and surface finish of the final product. The composition of covering refining flux varies depending on the metal being processed. Typical ingredients include fluorides, chlorides, and other reactive compounds that facilitate slag formation and impurity removal. Its effectiveness is measured by its ability to reduce dross formation and improve metal yield.
Physical and Chemical Properties
Covering refining flux is typically supplied as a fine powder or granular material, with colors ranging from white to gray. It has a density of approximately 1.5–2.5 g/cm³ and melts at temperatures between 600–900°C, depending on its specific formulation. The flux is insoluble in water but reacts with impurities in molten metal. Key chemical properties include high thermal stability and low volatility, ensuring it remains effective at high temperatures. Its reactive components bond with oxides and sulfides, forming slag that can be easily separated from the purified metal. The flux also minimizes hydrogen absorption in aluminum, reducing porosity in castings.
Main Applications
The primary application of covering refining flux is in the aluminum industry, where it is used to remove dissolved hydrogen and non-metallic inclusions. It is also widely employed in steel production to deoxidize molten steel and improve its cleanliness. The flux acts as a barrier against atmospheric contamination, ensuring higher metal purity. In addition to primary metal production, covering refining flux is used in secondary smelting and recycling processes. It helps recover valuable metals from scrap by separating impurities. The flux is also applied in foundries to enhance the quality of castings, reducing defects such as cracks and inclusions.
Safety and Storage
Handling covering refining flux requires caution due to its reactive nature. Workers should wear protective gloves, goggles, and respirators to avoid skin contact or inhalation of dust. The flux should be stored in a dry, cool environment, sealed in moisture-proof containers to prevent clumping or degradation. In case of accidental exposure, rinse affected areas with plenty of water and seek medical advice if irritation persists. Spills should be cleaned up promptly to prevent slipping hazards. Disposal must comply with local environmental regulations, as some components may be hazardous.
B2B Procurement Guide
When procuring covering refining flux, B2B buyers should prioritize suppliers with proven quality certifications, such as ISO standards. Key factors to evaluate include composition consistency, impurity levels, and performance data from industrial trials. Custom formulations may be required for specific metal grades or refining conditions. Price negotiations should consider bulk purchase discounts and logistical costs, as the flux is often transported in large quantities. Buyers should also verify the supplier’s ability to provide technical support and after-sales service. Sampling and testing are recommended before committing to long-term contracts.
Related Manufacturers
- 主营：润湿剂、消泡剂、脱模剂、环评精炼剂、脱氧剂、钢水净化剂、打炉料
- 主营：精炼剂、脱氧剂
- 主营：氧化铁颜料、沸石粉、铁砂、精炼剂、电气石粉、氧化铁棕、除渣剂、橡胶粉、氧化铁灰、四氧化三铁、高岭土、玻璃粉、磁粉、氧化铁黑、滑石粉、减水剂、碳酸钙、萤石粉、红色颜料、氧化铁黄、硅微粉、耐火材料、氧化铁红、伊利石粉、氟化钙粉、贝壳粉
- 主营：增注剂、防塌剂、降粘剂、精炼剂、润滑剂、消泡剂、增粘剂、磺化沥青、降滤失剂、褐煤树脂、乳化石蜡、固体聚合醇、聚合物树脂、油溶性树脂、粉状解卡剂、高效堵漏剂、强力包被剂、增粘提切剂、液体脱硫剂、包被絮凝剂、复合有机硅、随钻堵漏剂、快速渗透剂、钻井级黄原胶、磺化酚醛树脂、氯化钙溶液
- 主营：精炼剂、染料回收、回收颜料
- 主营：氯乙酰、脱漆剂、柠檬酸、精炼剂、二甲苯、塔尔油、正庚烷、三甘醇、乳化剂、催化剂、正丙醇、减水剂、丙三醇、除臭剂、渗透剂、防水剂、石油醚、润滑油、黄糊精、硫酸钾、羊毛脂、洗发水、白矿油、保水剂、蜗牛敌、清漆剂
- 主营：乙硫醇、环丁砜、四氢吡咯、精炼剂、四氢噻吩、四氢呋喃、三聚甲醛、3-羟基丙腈、二甲基亚砜、二甲基二硫醚、氯乙酸、氯乙酸钠、偏铝酸钠、异辛烷、偏三甲苯、硬脂酸锌、苯酚、邻苯二甲酸二丁酯、MIBC、苯酐、顺酐
- 主营：高铝砖、粘土砖、耐火球、轻质保温砖、浇注料、耐火泥、莫来石刚玉砖、氧化铝空心球砖、耐火砖
- 主营：二甲基硅油、丙二醇、减水剂、精炼剂、sbs、乙二醇、硅油、vae乳液、双氰胺、三乙醇胺、十二烷基苯磺酸钠、邻苯二甲酸二辛酯、邻苯二甲酸二丁酯、钼酸铵、树脂、活性白土、己二酸、甲酸、聚乙二醇、二甲苯、抗氧剂
- 主营：粘结剂、免烘干、粘合剂、精炼剂、肥料造粒、变性淀粉、糊化淀粉、阿尔法淀粉、玉米预糊化、预糊化淀粉、免烘干粘合剂、型煤粘合剂、除尘灰粘合剂、焦粉粘合剂、肥料造粒剂、型煤胶粉、铁粉粘合剂、氧化铁皮粘结剂、氧化铁粉、除尘灰脱锌粘合剂、焦炭块、焦末、焦沫、新型焦炭、石墨增碳剂、增碳剂造粒
- 主营：氟硅酸钠、片碱、氢氧化钠、精炼剂、消毒液、次氯酸钠、药用辅料蔗糖、六氯乙烷、氟化钠、过碳酸钠、硫酸锌、磷酸、聚乙二醇、柠檬酸、葡萄糖、氨基磺酸、乙二醇、氯化钙、硅酸钠、工业盐、氟硅酸镁、液碱、草酸、硫酸铜、硼砂、饲料添加剂
- 主营：精炼剂、中间合金、金属净化类
- 主营：低硅铁、硅钡孕育剂、硅钙粉、硅铝钡精炼剂、硅钙块、硅钙粒、硅锰合金、硅铝钡、硅铁粒1-3mm、球化剂、硅铁粒3-5mm、硅铝钡钙、冶炼硅锰合金、铸造用硅钡孕育剂、硅铁粒、脱氧剂硅锰块、锰硅合金材料、冶金球化剂、72号硅铁粒、硅锰脱氧合金、硅铝钡钙合金、硅钙合金颗粒、硅钙合金块、高效硅钡孕育剂、低硅合金铁
- 主营：正辛烷、偶氮二异丁腈、二甲基亚砜、精炼剂、聚磷酸铵、二氧化硒、甲醇钠、聚乙烯吡洛烷酮、叔丁醇、对苯二胺、邻苯二胺、香精、间苯二胺
- 主营：抗氧剂BHT、苯磺酸、苯酚磺酸、精炼剂、环烷酸铈、N235 萃取剂、C272萃取剂、均苯四甲酸二酐、对苯乙烯磺酸钠、氟化铝、椰油酰胺丙基甜菜碱、甘油三苯甲酸酯
- 主营：乳百灵、聚丙二醇 PPG、脂肪酸酯、精炼剂、磷酸酯、匀染剂、辛基酚聚氧乙烯醚、乳化剂、聚醚、消泡剂、农药乳化剂、分散剂、添加剂AC、乳化剂司盘、抗静电剂、纺织前处理助剂、柔软剂、净洗剂、脂肪醇聚氧乙烯醚、润湿剂、纺织印染助剂、渗透剂、乳化剂吐温、聚乙二醇PEG