Cast Bronze for Architectural Facades
建筑幕墙与立面铸铜构件
标签：建筑幕墙, 铸铜立面, 预埋件, 着色封护
建筑用铸铜件（幕墙格栅、门饰、柱头、扶手托架）多用硅青铜或锡青铜砂型铸造：单件可达 0.5–2 m、壁厚 6–10 mm，浇注前把 316 不锈钢连接件置入砂型（接触面做防镀铜处理）。伦敦地铁与中东高端项目均有整片铸铜立面案例，铸后喷砂并化学着色（褐/绿 patina），再喷 Incralac 封护。密封胶缝与橡胶圈槽直接铸出，省去机加工。批量件用铝模/树脂模翻制，按 ISO 2768-m 验收尺寸并附荷载测试报告。
Architectural bronze castings (facade grilles, doorwork, column capitals, handrail brackets) are typically sand-cast in silicon or tin bronze: pieces reach 0.5–2 m with 6–10 mm walls, and 316 stainless connectors are set into the mold before pouring (faces treated against copper plating). Whole cast-bronze elevations exist on London Underground and high-end Middle East projects: bead-blasted, chemically patinated (brown/green), then sealed with Incralac. Glue channels and gasket grooves are cast in, skipping machining. Volume runs use aluminum or resin patterns, dimensioned to ISO 2768-m with load-test reports.