Overview
Tungsten roller scrap refers to the residual fragments generated during the manufacturing, maintenance, or disposal of tungsten-based rollers used in industrial rolling applications. These components are prized in metallurgical recycling due to tungsten's exceptional properties, including the highest melting point of all metals and remarkable hardness. The scrap typically contains 70-95% tungsten, often alloyed with small amounts of cobalt, nickel, or other metals. In industrial settings, tungsten rollers are commonly used in high-temperature rolling processes such as steel production, where their wear resistance is critical. When these rollers are reground or replaced, the accumulated scrap becomes a valuable secondary raw material for the tungsten supply chain.
Physical and Chemical Properties
Tungsten roller scrap inherits the remarkable physical characteristics of tungsten, including its extraordinary density (nearly twice that of lead) and exceptional thermal stability. The material maintains structural integrity even at temperatures exceeding 1,600°C, making the scrap particularly valuable for high-temperature applications when recycled. Chemically, tungsten scrap exhibits strong resistance to corrosion from acids, though it may oxidize at elevated temperatures. The actual composition varies depending on the original roller alloy, which often includes binding metals like cobalt (5-15%) to improve toughness. This metallic composition makes the scrap highly conductive both thermally and electrically.
Main Applications
The primary use of tungsten roller scrap is as feedstock for tungsten recycling operations, where it is processed to extract pure tungsten or tungsten alloys. Recycled tungsten from these sources accounts for approximately 30% of the global tungsten supply, significantly reducing mining demand. Secondary applications include direct use in heavy alloy production for radiation shielding (medical and nuclear industries), counterweights, and kinetic energy penetrators. Some manufacturers also utilize cleaned tungsten scrap pieces as raw material for producing new cemented carbide tools, leveraging the material's existing crystalline structure to reduce energy costs in production.
Safety and Storage
While tungsten itself is relatively inert, tungsten roller scrap requires careful handling due to potential sharp edges and heavy weight. The dust generated during processing may present respiratory hazards, necessitating proper ventilation and particulate masks in work environments. Storage should be in dry, well-ventilated areas away from strong oxidizers. Moisture control is important to prevent oxidation of alloy components. For large quantities, secure stacking with weight distribution considerations is essential due to the material's high density. Fire protection measures should focus on controlling dust accumulation rather than the bulk material, which is non-flammable.
B2B Procurement Guide
When procuring tungsten roller scrap, buyers should first verify the tungsten content through material certificates or assay reports, as this directly affects value. Common industry standards classify scrap as high-grade (above 90% W), medium-grade (70-90% W), or low-grade (below 70% W). Transportation logistics require special consideration due to the material's density. Bulk shipments may need weight-distributed containers. Pricing typically follows the APT (Ammonium Paratungstate) market price with discounts for processing costs and alloy impurities. Establish long-term relationships with reliable metal recycling specialists to ensure consistent quality and supply chain transparency.
Related Manufacturers
- 主营：[]
- 主营：TZM、黄金、白银、钨镍铁钨镍铜、钨铜合金、钨铼合金、铂金、靶材、坩埚、棒杆、管件、高温钼镧合金、板片带箔、螺丝钉螺母垫片、发热体加热器
- 主营：钨辊环、轧辊粉、钨珠子、钨金属、钨轧辊、钨磨削料、钨磨棒粉、钨镍金刚线、金属材料、金属废料
- 主营：倒立式深孔钻床、深孔钻镗床、深孔刀具
- 主营：风琴防护罩、机床护板、机床冷却管、机床排屑机、机床刮屑板、刮屑板、集屑车、车床排屑机、机床排屑器、排屑机、铁屑车、拖链、机床灯、机床防护罩、钢制拖链、机床排削机、钢板防护罩、油缸防尘罩、机床外防护、风琴罩、机床外壳、塑料拖链、帆布软连接、丝杆防护罩
- 主营：轧辊铣床、数控轧辊车床、旋飞雕铣床
- 主营：机床防护罩、钢板防护罩、风琴防护罩、机床排屑机、铁屑车、排屑机、机床排屑器、铁屑输送机、链板排屑机、机床工作灯、机床导轨防护罩、机床外防护、机床外钣金、丝杠防尘罩、机床防尘罩、风机软连接、机床拖链、塑料拖链、尼龙拖链、链板、机床外壳、车床排削机、钢制拖链、拖链、风琴罩
- 主营：铜缓蚀剂、滑剂添加剂、润滑添加剂、冷热轧辊磨削液、复合添加剂、粉末沉降剂、乳化添加剂、抗磨添加剂、高纯度硼酸酯、羧酸盐防锈剂、切削液缓蚀剂、水溶性防锈剂、成切削液复合剂
- 主营：拖链、风琴防护罩、钢板防护罩、排屑机、排屑装置、机床排屑机、丝杠防护罩、油缸防护罩、导轨防护罩、工作灯、冷却管、磁性分离器、纸带过滤机、塑料拖链、风琴罩、软连接
- 主营：集中排屑机、风琴防护罩、钢板防护罩