What is Hard Chrome Plating Of Cylinder Piston Rod?

 Cylinder piston rod is a very important part in hydraulic cylinder working smoothly,hard chrome plating a piece of precision equipment such as a cylinder rod is a painstaking and methodical process.

The Hard Chrome Plating Process:

1. Inspection

The cylinder chrome rod is inspected during the initial evaluation to determine the condition prior to the chroming process. An inspector will make note of any signs of corrosion, pitting, marring, damage, cracking or flaking. The presence of any of these conditions will be taken into account during the re-chroming process.

2. Grinding & Stripping
Old material on the hydraulic cylinder rod must be removed before new chrome can be applied. This step needs to be completed carefully to preserve the steel beneath the old layer and without affecting the rod diameter. This can be done with two methods – electrolytic stripping and stone grinding.

3. Cleaning and Masking
The rod then needs to be prepared to be placed in a bath of chromium solution. Prior to doing so, the rod must be cleaned thoroughly. Undesirable anomalies may occur if debris and contaminants are not properly cleaned during this step. 

4. Plating
Electrolytic plating is a familiar process, being used in a range of applications spanning from plating gold jewellery to applying metal plating to satellites.

5. Surface Finishing
This is a 2-step process of post-grinding and linishing to finish the rods once a new layer of chrome has been applied. The perfect surface finish is achieved by reducing the chrome coating to the exact thickness, and polished.

6. Inspection
For the chroming process of hydraulic cylinder piston rod to be complete, the job must pass a final inspection. With ample experience and digital devices for surface thickness and roughness measurement, an inspector checks the quality of the chrome job and ensures there are no defects.

cylinder piston rod


Comments

Post a Comment

Popular posts from this blog

40CR ALLOY STEEL SPECIFICATION

  40Cr steel  is a kind of Chinese GB standard alloy steel for engineering and machinery purpose, and one of the most widely used steel grades. For 40Cr material hardness, specifications and equivalent, please see the table below. After quenching and tempering treatment, 40Cr steel has good comprehensive mechanical properties, low temperature impact toughness, low notch sensitivity, good hardenability, and high fatigue strength in cold oil. When water cooling, the complicated shape of the parts is prone to cracks, the cold bending plasticity is medium, and the cutting workability after normalizing is good, but the weldability is poor, should be preheated before welding, and is generally used in the state of quenching and tempering. DATASHEET & SPECIFICATION The tables below list 40Cr alloy steel datasheet and specification including chemical composition, properties and heat treatment, etc. 40CR STEEL CHEMICAL COMPOSITION   Chemical Composition (%) Grade C % Si Mn Cr 40Cr 0.37 – 0.4
Read more

Skiving &Roller Burnishing Tube And Honing Tube

Image
Skiving and roller burnishing tube  process provide high quality hydraulic cylinders with final sizing and creates the desired finish pattern on the interior of tubing or cylinder bores. They are used in the manufacturing of  hydraulic cylinders . Compared to honing process, they are 80-90% saving of machine time which reduces tool costs per meter of tube length and produces super finish surface, with a bore tolerance of IT8, thereby reduces the sealing wear making it ideal for pistons. The skiving tool is a multifunctional tool used in the manufacturing of hydraulic cylinders. Skiving is operated like this: Two thin chips are cut at a high feed rate (1-4 mm/rev) while the tool passes through the work piece. This cutting operation determines the finished diameter and tolerance of the hydraulic tube. Surface finish Ra= 4-10 μm (skiving) Skiving has obvious advantages compared with honing: • 80-90% saving of machine time which reduces tool costs per meter of tube length. • Produ
Read more

What is Hydraulic Ram Cylinder?

Image
  Hydraulic ram cylinders   are typically used to give vertical motion, including lifting loads in a vertical direction. Such a cylinder is also used to provide the motion in a horizontal direction but needs attention and suitable guides to guide the motion. Single-acting hydraulic cylinders that have no pistons but have large  cylinder rod s are called rams. These rams operate exactly like the conventional single acting hydraulic  cylinders. However, they use large diameter rods in place of pistons and piston seals in their designs. Thus, in place of pistons, rams have high-pressure cap-end ports. They also do not have any low-pressure rod-end ports. Rams are generally cheaper than their conventional single-acting cylinders counterparts.
Read more