SAE J356-2006由美国机动车工程师协会 US-SAE 发布于 2006-07-01,并于 2013-12-19 实施。
SAE J356-2006 在中国标准分类中归属于: H48 钢管、铸铁管,在国际标准分类中归属于: 77.140.20 不锈钢。
This SAE Standard covers normalized electric-resistance welded flash-controlled single-wall low-carbon steel pressure tubing intended for use as pressure lines and in other applications requiring tubing of a quality suitable for bending, flaring, beading, and brazing. Material produced to this specification is not intended to be used for single flare applications due to the potential leak path that would be caused by the ID weld bead. This specification also covers SAE J356 Type -A tubing. The mechanical properties and performance requirements of standard SAE J356 and SAE J356 Type-A are the same. Therefore, the designated differences of Type-A tubing are not meant to imply that Type-A tubing is in anyway inferior to standard SAE J356. The Type-A designation is only meant to address the unique manufacturing differences of the small diameter, light wall sizes (typically 15.88 mm OD X 1.24 mm wall and smaller.) The primary differences between SAE J356 and SAE J356 Type-A are described in the following paragraph. Type-A tubing is heat treated in-line to relieve stresses and is generally produced in coiled form. When Type-A tubing is produced in coil form, straight lengths of Type-A are only available through a secondary straightening and cut-to-length operation. Standard SAE J356 is produced as straight lengths and then receives a secondary normalizing operation. All standard SAE J356 requirements apply to Type-A tubing unless the specific requirement is noted with a "Type-A" designation. Standard SAE J356 is also available in the same sizes as Type-A, in which case all the standard SAE J356 specifications apply.
欠压锻造欠压指垂直于分模面方向的尺寸普遍增大,产生的原因可能是:①锻造温度低。②设备吨位不足,锤击力不足或锤击次数不足。错移锻造错移是锻件沿分模面的上半部相对于下半部产生位移。产生的原因可能是:①滑块(锤头)与导轨之间的间隙过大;②锻模设计不合理,缺少消除错移力的锁口或导柱;③模具安装不良。轴线弯曲锻造锻件轴线弯曲,与平面的几何位置有误差。...
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