Shake-out, Cleaning & Defect ID

Shake-out, Cleaning & Defect ID

落砂清理与缺陷识别

type:tutorial · level:beginner · material:bronze · variant:green-sand · scale:decorative-object · equipment:hand-tools · stage:cleanup

标签：落砂, 清理, 缺陷识别

落砂后切除浇冒口，喷砂/抛丸去除粘砂。检查缺陷：粘砂（砂粒熔附表面，因型砂耐火低或温度高）、夹砂（表面片状起皮，因型腔表层膨胀）、浇不足（金属未充满，温度低/浇速慢）。轻微缺陷可焊补（青铜用磷铜焊条），严重则报废重铸。建档记录缺陷率，持续优化型砂配比。

After shake-out, cut gates/risers and blast to remove burned-on sand. Check defects: burn-on (sand fused to surface, low-refractory sand or too hot), scab (flaky surface skin, sand expansion), misrun (unfilled, low temp/slow pour). Minor flaws weld-repair (phosphor-bronze rod); severe → scrap and recast. Track defect rate to tune sand. ---