鎂合金零件技術要求

NOTES:
1. MATERIAL:MAGNESIUM R25 TO BS 2970MAG SP
2. ALL UNSPECIFIED RAD TO BE R5
3. MACHINE ALLOWANCE SHOUW (10mm) MAY VARY AT MANUFACTURERS DISCRETION THIS AFFECTS DIM'S SHOW THUS#. THESE DIM'S TO BE VARIED TO GIVE SAME FINISHED M/C SIZE
4. DIMENSIONS MARKED THUS * ARE MINIMUM MATERIAL CONDITION END OF TAPER.
5. DRAFT AHNGLES TO BE 1度 MAX/SIDE
6. FINISH:SOLUTION TREATED&CHROMATED.
7. WT.(APPROX)=19kg. (42bs)

1.材料:镁 R25 (满足BS 2970标准的 MAG SP 级别)
2.未注圆角R5
3.加工余量10mm由制造商自主决定而调整。它影响带有THUS*标记的尺寸。即使给定同样的最终机加工尺寸，这些尺寸也会调整（受加工余量变化影响）。
4.带有THUS*标记的尺寸表示最小实体状态时锥度的端部尺寸
5.拔模斜度单边最大1度
6.表面处理：铬酸盐固溶处理


BS 2970:1989 Specification for magnesium and magnesium alloy ingots and castings Superseded, Withdrawn

关于 镁合金铸件的标准 不过被替代了