註:真空鑄造尺寸精度更優於表上所列,歡迎來電,洽詢討論!
| 項目 | 一般要求 | 特殊要求 |
|---|---|---|
| 1.表面光度 | 碳鋼 90-125 RMS | 60-90RMS |
| 300系不鏽 90-125 RMS | 60-90RMS | |
| 400系不鏽 100-125 RMS | 60-100RMS | |
| 鈹銅 60-100 RMS | 40-60RMS | |
| 2.公差尺寸 | <25 mm ±0.25 | ±0.15 |
| 25-50 mm ±0.40 | ±0.30 | |
| 50-75 mm ±0.50 | ±0.40 | |
| 75-100 mm ±0.70 | ±0.50 | |
| 100-150 mm ±1% | ±0.65 | |
| >150 mm ±1% | ±1.0% | |
| 3.半徑公差 | <50 mm ±0.40 | ±0.13 |
| >50 mm ±0.8% | ±0.6% | |
| 4.真直度公差 | <50 mm ±0.25 | ±0.13 |
| 50-100 mm ±0.38 | ±0.25 | |
| 100-150 mm ±0.50 | ±0.30 | |
| >150 mm ±0.76 | ±0.38 | |
| 5.真平度公差 | <25 mm ±0.20 | ±0.10 |
| 25-50 mm ±0.40 | ±0.15 | |
| 50-100 mm ±0.64 | ±0.25 | |
| 100-150 mm ±0.76 | ±0.38 | |
| 6.平心度公差 | 壁厚6 mm ±0.20 | ±0.10 |
| 壁厚12 mm ±0.30 | ±0.20 | |
| 7.平行公差 | 1.6 mm ±0.08 | ±0.08 |
| 3.18 mm ±0.08 | ±0.08 | |
| 6.35 mm ±0.08 | ±0.08 | |
| 12.7 mm ±0.13 | ±10 | |
| 19.0 mm ±0.15 | ±10 | |
| 25.4 mm ±0.18 | ±0.13 | |
| 38.1 mm ±0.25 | ±0.18 | |
| 8.真圓度公差 | 13 mm ±0.13 | ±0.1 |
| 25 mm ±0.25 | ±0.15 | |
| 38 mm ±0.30 | ±0.20 | |
| 50 mm ±0.38 | ±0.25 | |
| 9.角度公差 | <45℃ ±0.5℃ | ±0.5℃ |
| 45℃-90℃ ±1℃ | ±1℃ | |
| ±2℃ | ±1℃ |
| 項目 | 一般要求 | 特殊要求 | ||
| 10.孔徑孔深之關係尺寸 | 盲孔 | 盲孔 | ||
| 孔深 | 最小孔徑 | 孔深 | 最小孔徑 | |
| 6.35mm | 4.8∮ | 6.35mm | 4.8∮ | |
| 12.7mm | 6.35∮ | 12.7mm | 5∮ | |
| 19.0mm | 12.7∮ | 19.0mm | 10∮ | |
| 25.0mm | 16∮ | 25.0mm | 14∮ | |
| 32.0mm | 19∮ | 32.0mm | 17∮ | |
| 38.0mm | 25∮ | 38.0mm | 22∮ | |
| 50.0mm | 25∮ | 50.0mm | 22∮ | |
| 63.5mm | 25∮ | 63.5mm | 22∮ | |
| 通孔 | 通孔 | |||
| 孔深 | 最小孔徑 | 孔深 | 最小孔徑 | |
| 6.35mm | 2.385∮ | 6.35mm | 2.38∮ | |
| 12.7mm | 3.25∮ | 12.7mm | 3.2∮ | |
| 19.0mm | 4.8∮ | 19.0mm | 4∮ | |
| 25.0mm | 6.355∮ | 25.0mm | 6∮ | |
| 一般要求 | 特殊要求 | |||
| 2.0mm | 8∮ | 32.0mm | 6∮ | |
| 38.0mm | 9.5∮ | 38.0mm | 8∮ | |
| 50.0mm | 11∮ | 50.0mm | 10∮ | |
| 63.5mm | 12.7∮ | 63.5mm | 10∮ | |
| 11.最小壁厚 | 碳素鋼 1.5mm | 0.76mm | ||
| 400系不銹鋼 1.65mm | 0.76mm | |||
| 300系不銹鋼 1.3mm | 0.50mm | |||
| 12.推拔斜度配合 | 孔深 | 因冷凝收縮建議裕留加工℃ | ||
| <38mm 0.5 ℃ | ||||
| >38mm >0.8℃ | ||||
| 13.內角R 外角R | 0.2-0.5R | <0.2R | ||
| 0.15-0.25R | <0.15R | |||
| 14.預留加工料公差 | 0.25-0.65mm | |||
| 15.槽溝 | 溝深=溝寬 且溝寬>3.175mm | |||