The process and characteristics of honing steel
tube and improving surface roughness can almost reach Ra less than 0.4
um. 2. Correct the roundness, the ellipticity can be less than 0.01 mm.
3, improve the surface hardness, eliminate the stress deformation,
hardness HV 4 ° or higher
After processing, the residual stress layer shall improve the fatigue strength by 30%.
Improve the coordination quality, reduce wear and tear, and prolong the life of cylinder.
Internal diameter tolerance: H8, H9, straight line 0.3mm/ 1000mm, 0.5mm/ 1000mm.
Stainless Steel Honed Tube,Stainless Steel Honed Steel Tube,Cold Rolled Steel Tube,Stainless Honed Carbon Steel Tube Yangzhou Yinhe Machinery Co., Ltd , http://www.yinhesteeltubes.com
“Statistics in November showed that U.S. manufacturing is picking up,†said Peter Borden, president of the American Machine Tool Distributors Association. “We are confident that this figure will continue to grow in 2011, even though capacity utilization is below the critical value, but this is It is a normal phenomenon, so the purchasing power still exists."
U.S. Manufacturing Industry Consumption Up 82.7% from January to November
According to statistics from the American Machine Tool Distribution Association and the American Manufacturing Technology Association, US manufacturing technology spending totaled US$318 million in November 2009, a decrease of 17.7% from the previous quarter, but this was an increase of 81.1% compared with US$176 million in the same period last year. From January to November last year, US manufacturing technology consumption totaled 2.793 billion, which was a year-on-year increase of 82.7%.