expansion ratio แปลว่า
- n. exp.
อัตราขยาย [at trā kha yāi]
ประโยค
character of large output, extrusion stability and high expansion ratio. Smooth surface and so on.
5 this, the mechanical expansion ratio is preferably from 0.5 to 1.5% under the condition that a predetermined steel pipe roundness can be obtained and the residual stress can be removed.
Hard tool materials and ferrous materials have different thermal expansion ratios. Shrinkage or swell fi t products may suffer from cracks when applied temperature is higher or lower than the appropriate temperature for the tool.
