Troubleshooting: Cracks, Overheating
常见问题：裂纹、过热
标签：裂纹, 过热, 热脆, 故障排查
①裂纹：多为加工硬化未退火或弯曲过锐→增加退火频次、放大弯曲半径。②过热/过烧：表面橘皮、晶界氧化→降低炉温、缩短加热。③热脆（青铜）：沿晶开裂→严格控温在 600–700℃ 窄区、快锻。④夹灰（氧化皮压入）：锻前彻底清氧化皮。记录温度曲线是关键。
①Cracks: work-hardening without anneal or too-sharp bend → anneal more, widen radius. ②Overheat: orange-peel, grain oxidation → lower temp, shorter heat. ③Hot-short (bronze): intergranular cracks → strict 600–700℃ band, fast forge. ④Scale inclusion: descale before forging. Log the temperature curve. ---