| 摘要 |
FIELD: heating systems. ^ SUBSTANCE: heat exchange surface manufacturing method involves metal workpiece finning in the form of blades by cutting material of surface layer. When being cut, blades are twisted at angle about their axis passing at angle to workpiece surface; at that, blades axes inclination angle = (10Ç90), and twist angle = (10Çn360), where n - number of curls (n = 0Ç10), and axes of blades are parallel to each other. ^ EFFECT: improving heat exchange stability in conditions when fins blowing directions are changed. ^ 3 cl, 3 dwg |
