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The head size reducing process
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PostPost subject: The head size reducing process
Posted: Tue Jun 21, 2016 6:40 pm
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Concentric reducer should not have crack, double skin appearance, wall thickness should be greater than the big diameter end section of the wall thickness. Roundness of eccentric reducer should not be greater than 1% of the corresponding end diameter, and the allowable deviation of plus or minus 3 mm; Centerline should overlap on both ends of the concentric reducer, the eccentric value allowable deviation is + / - 5 mm.
Size reducing forming technology of the head is with the head big end diameter equal to the size of the pipe into the forming die, along the axial direction of tube billet by pressing, shrink along the cavity movement and metal forming. Head size should not have crack, double skin appearance, wall thickness should be greater than the big diameter end section of the wall thickness.
Centerline should overlap on both ends of the concentric reducer, the eccentric reducer value allowable deviation is + / - 5 mm. According to the size of the reducer, divided into the one of pressing or more press forming.
Source: Zhejiang Yaang Pipe Industry Co., Limited (www.yaang.com)
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