Apprenticeship in the Art Foundry
艺术铸造学徒制：从打磨到独立开炉
标签：学徒制, 职业路径, 精整, 制壳, 熔炼
传统艺术铸造学徒制分三段：头 6–12 个月只做清壳、切浇道与打磨，先练出对铸件缺陷的眼力；第二段学修蜡、制壳与浆料控制（硅溶胶锆英粉浆密度 1.7–1.8 g/cm³）；第三段跟炉熔炼浇注，学会凭经验判断 1150–1200℃ 的浇注时机。意大利 Bottega 与日本铸物所至今保留"师徒同炉"制度，学徒通常 3–5 年可独立负责一件雕塑从翻模到着色的全流程。
Traditional art-foundry apprenticeships run in three stages: the first 6–12 months are spent shell-breaking, cutting sprues and grinding, training the eye for defects; the second stage covers wax chasing, shell building and slurry control (silica-zircon slurry at 1.7–1.8 g/cm³); the third pairs the apprentice with the melt crew to judge pouring readiness at 1150–1200°C. Italian bottega and Japanese foundries still keep master-and-apprentice sharing one furnace; 3–5 years typically produce someone who can carry a sculpture from molding to patina alone.