铸造起重机滑轮产品介绍
Cast crane sheaves are a production process in which metal is smelted into a molten state that meets specified requirements and then poured into the mold for casting. After cooling, solidification, and cleaning, the pulley’s predetermined shape, size, and performance are achieved. Because the casting pulley blanks are almost fully formed, free machining or small-scale machining is used, reducing costs and production time to some extent. This method offers low production costs and high efficiency. For some pulley products with large size, irregular shape, and complex structure, casting is an ideal production method. Pulley casting is the basic process of the modern device manufacturing industry.
铸造起重机滑轮分类
- 容量： 高达100吨
- 钢丝绳磨损相对较小： the HT250 material contains graphite and has self-lubricating properties, which effectively reduce friction and provide good shock-absorption performance.
- 经济实惠： 砂型铸造工艺简单，原材料丰富，在满足标准要求的同时，大大降低了采购成本。
铸钢起重机滑轮
Cast SteelCrane Sheaves Introduction
Cast steel crane sheaves have higher strength and can withstand greater tensile pressure, but the wear on the wire rope is greater than that of cast iron sheaves. It is ideal for occasions with high operating conditions. Standard cast steel pulleys generally use lost foam casting, which has a low production cost and high efficiency. For some pulley products with large size, non-standard shape and complex technology, cast steel pulleys are an ideal way to make them. Moreover, the lost foam casting method is used, and the pulley is not limited by the equipment in terms of diameter and other dimensions, which is more flexible. However, due to the influence of factors such as casting technology, the quality directly depends on the quality of the casting blank.
铸钢 起重机滑轮的优势
增强韧性和可塑性
铸钢起重机滑轮采用与优质钢材相似的材料特性设计而成。与铸铁相比，它们具有更高的硬度和更优异的柔韧性，从而拥有更强的可塑性和抗冲击性。这使得它们用途广泛，适用于各种工业应用。
轻量化设计，提升运营效率
由于铸钢的密度低于传统铸铁，相同体积的铸钢起重机滑轮重量要轻得多。在起重作业中，由于活动滑轮随负载移动，更轻的滑轮可以降低能耗和人工劳动强度，因此铸钢滑轮比铸铁滑轮得到了更广泛的应用。
耐腐蚀性和更长的使用寿命
铸钢起重机滑轮在运行过程中会形成一层天然的保护层，有效防止雨水和化学侵蚀。与容易生锈和受潮后结构退化的铸铁不同，铸钢能够保持其完整性，从而显著延长使用寿命。
通过火焰淬火提高耐磨性
通过优化碳含量，这些滑轮的结构强度超过了铁质滑轮。具体而言，经火焰淬火处理后，表面硬度达到HRC48-HRC52，耐磨寿命延长了30%以上。
针对重型起重作业的优化应力分布
Featuring a dual-hub design, these sheaves uniformly disperse stress across the structure. This makes them the definitive choice for high-tonnage lifting operations where structural reliability is non-negotiable. Optional configurations with tapered roller bearings or sliding bearings support a wide operating temperature range from -40°C to 200°C. Fully ISO 14001 certified, these cast steel crane sheaves are the ideal choice for extreme environments such as metallurgical blast furnaces and offshore oil drilling platforms.
Cast Steel Crane Sheaves Application
防爆桥式起重机用铸造滑轮
铸造厂桥式起重机用铸造滑轮
智能焦化罐起重机用铸造滑轮
铸铁起重机滑轮
铸铁起重机滑轮简介
Cast iron crane sheaves uses gray cast iron (HT15-33) or ductile iron (QT-10). The pulley has good process performance and is easy to cut, especially the wear on the wire rope is small, but because of its low strength and brittleness, poor durability, it can easily cause rim fracture and crushing when used, and it is more economical and ideal for small tonnage or infrequent equipment use. Cast iron crane sheaves use sand-cast iron casting technology; cast iron is an ideal material for making crane pulleys because of its good fluidity during casting and relatively few casting defects.
Cast Iron Crane Sheaves Advantage
- 承载能力强，稳定性好： High-quality cast iron materials coupled with heat treatment technology ensure reliable carrying capacity.The recommended static safety factor is ≥3 (depending on the application conditions).
- 使用寿命长： 铸铁中的石墨具有天然润滑作用，结合淬火、回火和喷丸处理，可以减少摩擦和表面磨损。
- 成本效益高的生产方式： The casting process can achieve integrated, complex geometries, and reduce unit costs in large-scale production.
