Hard Chrome Rods

Hard Chrome Rods is a chromium-plated steel product used primarily as piston rod material in standard hydraulic and pneumatic applications. Hard Chrome plated bar is normally used in conditions of high stress, friction, and harsh climactic environments, the quality of the base metal and subsequent surface treatment are of paramount importance. Wear resistance, corrosion resistance, surface smoothness, high yield strength, and uniform quality are essential properties of hard chrome bars.

Hard Chrome Rods or Plated

Hard Chrome plated bars are generally produced from steel bars combining high strength with excellent machinability and weldability. Tolerance on bar diameter to ISO f7. Common applications are found in agricultural machinery, production equipment, cranes, garbage compactors, lifters, etc.

The piston rod is a connecting rod that is an integral part of an engine. The piston rod connects the piston with the crankshaft of the engine. The function of the piston rod is to convert the reciprocating motion of the piston to the rotating motion of the crankshaft. This piston rod which is often referred to as the connecting rod or conrod acts like a lever arm that transmits the compressive and tensile force from the piton by rotating at both ends.

From the function of the piston as described above, it is easily understandable that piston rods have to bear the tremendous mechanical load and for that this part needs to be sturdy enough to bear that strain continuously. It makes it last long without breakdown it is important that piston rods are made with not only sturdy metals but it is processed in a way to give them some extra strength. In most cases, steel, alloy steel, and casting metals are preferred for making piston rods. To make it further strong piston rods are given hard chrome plating.

Hard chrome plating is applied to the piston rods by the process of electroplating as that is the most effective way of the surface coating. It is done to increase the hardness of the piston rod and minimize wear and tear caused by continuous friction of metals within the piston. Hard chrome-plated piston rods are also corrosion-resistant that extend the life of the component.

The hard chrome plating can be applied in various thicknesses ranging from 0.012mm to 0.63 mm and it can increase the hardness of the metal to a significant level of HV1100. If the operating temperature is maintained within the range of 50℃ to 65℃ hard chrome plating ensures no physical or mechanical damage to the base metal of the piston rod. Another advantage of hard chrome plating is that it can be used on different base metals. Hard chrome-plated piston rods are not only tough and sturdy but they have a smooth surface and are corrosion resistant which makes them a preferable choice for piston rods.

Benefits of using Hard chrome-plated piston rods

Piston rods are an integral part of any engine used to connect the engine’s crankshaft. Their function involves the conversion of reciprocating piston motion to the rotation motion of the crankshaft. It acts as a connecting rod or a lever arm transmitting tensile and compressive force from the piston through rotation at both ends.

Importance of Hard Chrome plated Piston rods

As understood by the function of the piston rods, it can be easily deciphered that they bear extreme mechanical loads. Thus. It is important for it to be sturdy enough to bear that continuous strain over a long period without any breakdowns. In order to ensure the same, only those piston rods need to be chosen which are made of sturdy metals in addition to being processed in a way that gives them some extra strength.

In a maximum of cases, casting metals and alloy steels are used for making these rods. To further increase their strength, hard chrome plating is then given. This is done through electroplating, which is the most effective way of the surface coating. This increases the hardness of the piston rod, thus minimizing the wear and tear caused due to the continuous metal friction within the piston.

Advantages of using Hard Chrome plated piston rods

There are several advantages of using hard chrome-plated piston rods as compared to their other counterparts. These are:

• Carbon steel balances the hardness, durability, and wears resistance through durability, weldability, and formability.
• Hard Chrome plating provides resistance against corrosion along with an extremely reflective look.
• The plating increases the high precision tolerances. This helps in ensuring that when they are used for making hydraulic piston rods, they can fit the cylinder precisely.
• Hard chrome plating provides good hardness to the rod. They help the surface hardness to attain a minimum of HV850 that not only helps in improving the wear resistance but also extends their life span. This helps the consumer in saving several costs.
• The performance and strength of the piston rod also increase with hard chrome plating. Their yield strength can go up to 75000 psi to 100000 psi.
• If the operating temperature is maintained around 50- 65 degrees Celsius, hard chrome plating ensures that there is no mechanical or physical damage caused to the piston rod base metal.
• Another advantage of hard chrome-plated piston rods is that they can be used on different base metals. It not only makes the rods tough and sturdy but gives it a smooth shine and a corrosion-resistant look that makes it one of the most preferred choices.

The many advantages of hard chrome plated piston rods make it one of the most commonly used equipment in many industries such as aerospace sector, earth moving equipment sector, and others. This is because they provide lighter weights with higher strength and lower cost. It is these excellent characteristics that make it one of the most widely used piston rods category in hydraulic cylinders.

References : aarivprecision.com

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