Acceptance Criteria for Metallic Process Contact Surface Finishes of ASME BPE
无论是机械抛光还是电解抛光,对抛光后的表面光洁度(粗糙度)都是有要求的,通常是使用粗糙度仪来测量产品的表面粗糙度值(如Ra、Rz值等),但仅仅只是通过粗糙度测试仪得到的结果也不是非常全面的,现将《ASME BPE》标准中对于金属表面光洁度检测的相关标准列举出来,供大家学习借鉴。
Table SF-2.2-1 Acceptance Criteria for Metallic Process Contact Surface Finishes
表 SF-2.2-1 金属工艺接触表面光洁度的验收标准
GENERAL NOTE: This table covers surface finishes that are mechanically polished or any other finishing method that meets the Ra max.
一般说明:本表涵盖了机械抛光或任何其他满足平均粗糙度最大值的抛光方式。
NOTES: 备注:
1. Black bottom pit of any depth is not acceptable.
任何黑底的凹点(坑)不接受。
2. Pits in superaustenitic and nickel alloys may exceed this value. Acceptance criteria for pit size shall be established by
agreement between owner/user and supplier. All other pit criteria remain the same.
超级奥氏体和镍合金中的凹坑可能超过该值。应通过业主/用户和供应商之间约定凹点(坑)尺寸的验收标准。所有其他凹点(坑)验
收标准保持不变。
3. For vessels, dents in the area covered by and resulting from welding dimple heat transfer jackets are acceptable.
对于容器类,换热夹套覆盖区域内的焊接凹痕是可以接受的。
4. An inspection window is defined as an area 4 in. 4 in. (100 mm 100 mm).
检查窗定义为4英寸×4英寸(100mm×100mm)。