Views: 0 Author: Site Editor Publish Time: 2022-04-29 Origin: Site
1、 Product Description
Item | Hard Chromed Rod | Induction Hardened Chromed | Nickel and Chrome Plating Bars |
Steel Grade | C45E (EN 10083) | C45E (EN 10083) | C45E,20MnV6/38MnVS6 |
Tolerance | ISOf7 | ISOf7 | ISOf7 |
Roundness | Diameter tolerance / 2 | diameter tolerance / 2 | diameter tolerance / 2 |
Standard Length | -for Ø ≤ 60 mm: 5600 -6200mm -for Ø≥60 mm: 5800 -7200mm Upon request: special lengths on all diameters | - for Ø ≤ 60 mm: 5600 – 6200 mm - for Ø ≥ 60 mm: 5800 – 7200mm Upon request: special lengths on all diameters | Up to 6000 mm
Upon request: special lengths on all diameters |
Surface Roughness | Ra max. 0.20 µm (statistic average: 0.05-0.15 µm) | Ra max. 0.20 µm (statistic average: 0.05- 0.15 µm) | Ra max. 0.20 µm (statistic average: 0.05-0.15 µm) |
Chrome Layer Thickness | min. 900 HV (0.1)
| min. 900 HV (0.1) | min. 25 µm |
Straightness | ≤ Ø16 mm: max. 0.3 mm: 1000 mm > Ø16 mm: max. 0.2 mm: 1000 mm | ≤ Ø16 mm: max. 0.3 mm: 1000 mm > Ø16 mm: max. 0.2 mm: 1000 mm | max.0.20 mm/1000 mm |
Due to the residual compressive stress on the surface of the surface layer, the rolling machining is helpful to seal the small cracks on the surface and prevent the expansion of erosion.
Thus, the corrosion resistance of the surface can be improved, and the fatigue crack can be delayed or expanded, and the fatigue strength of the cylinder rod can be improved.
By rolling forming, a cold working hardening layer is formed on the rolling surface, which reduces the elastic and plastic deformation of the contact surface of the grinding pair, thereby improving the wear resistance of the cylinder rod surface and avoiding the burn caused by grinding.
After rolling, the reduction of surface roughness value can improve the matching property. At the same time, the friction damage to the seal ring or seal when the cylinder rod piston is moving is reduced, and the overall service life of the cylinder is increased. Rolling process is an efficient and high-quality process measure.
After rolling, the surface roughness of the cylinder rod is reduced from RA3.2-6.3um before rolling to RA0.4-0.8um, the surface hardness of the cylinder rod is increased by about 30%, and the surface fatigue strength of the cylinder rod is increased by 25%.
The service life of the cylinder is increased by 2 to 3 times, and the rolling process is about 15 times more efficient than the grinding process. The above data show that the rolling process is efficient and can greatly improve the surface quality of the cylinder rod.
2、Equipment Show
As one of the biggest honed tube piston rod manufacturers in China, we equipped with advanced production facilities and inspection facilities for honed pipe manufacturing and inspection. Below manufacturing machines for steel honed tubing and chrome plated hard bar
3、Testing & Inspection
4、Packing
5、Company Show
Major in Honed tube, Chrome rod, Cylinder parts, 15+ years’ experience. Factory was established under modern management system and technologies in 2003. It covers an area of 40,000 sq. meters, all processing control include cold-drawn, heat treatment, honing, peeling, grinding, polishing. There ’re 60+ sets of advanced equipment and 70+ skilled technical workers, annual output over 20,000 tons.
6、Our Services
<Could make product for customer according to customer samples or drawings
<Submit samples with official inspection reports including material report, mechanical property report and dimensional report
<Can provide the third party inspection report
<Could provide at least one year’s quality guarantee after customer receives the products
<We could supply storage service for customer if required.
