Shock Absorber

Micro-crack chrome (1)

Influence on corrosion resistance of hard chrome plating

Corrosion resistance of copper, nickel, chrome system depends on the surface statement of chrome and the property of nickel cladding located on the juncture of chrome claddings; corrosion speed is up to corrosion current intensity, corrosion current intensity is up to the rate of the chrome cladding area and the exposed area of nickel cladding area.

Because of the strong internal stress of chrome cladding, there must be existed crack on the surface. The dense oxic horizon on the surface of normal chrome plating deposit makes it become cathodal cladding. Produced micro crack were thick and little, yet the exposed area of nickel was small, thus corrosion current congregate on nickel cladding which is exposed as anode. The more intensity the current is, the faster the speed corrosion becomes. Although nickel cladding almost exist clearance, copper used in nickel/chromium system as anode. Therefore, corrosion almost lengthwise penetrability, thus improve the corrosion speed of iron base. Meantime, make the copper, nickel, chromium system protective ability get lower.

In copper, semi-bright nickel, bright nickel, micro-crack chrome system, the numerous micro-hole& micro-crack increase the exposed area of nickel layer existing in these crack and make under the same situation of total corrosion current these will slow the corrosion speed. On the other hand, because the sulfur percentage of bright nickel in the middle layer of two-double nickel exceed the semi-bright’s in the bottom layer, so the potential of bright nickel is lower than semi-bright nickel as the anode and the corrosion become transverse. If there is copper layer under the semi-bright nickel and copper as the cathode together two-double nickel and micro-crack chrome. So bright nickel, semi-bright nickel layer appear transverse corrosion. It improve the protective ability of base material.
Josephchiang

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Our Products

More Product Information Please Visit www.piston-rod.com

Shock Absorber
1.Motorcycle Shock Absorber
Exquisite shock absorber with high quality
Satisfy various road stipulation and make driving more comfortable
Guaranteed shock reduction performance, longer service life for motorcycle
We also could produce according to customers’ designs
2.Vehicle Shock Absorber
High quality oil sealHardened chrome piston rod reduces frictionSeamless cylinder reduces possibility of splittingWe also could produce according to customers’ designs

Piston Rod
1.Chrome Plated Piston Rod
Induction Hardening
Depth : According to client’s drawings
Hardness : According to client’s drawings
Surface Treatment : Chrome Plated (Micro Crack Electroplate Process)
Thickness : According to client’s requirements(0.005-0.02mm)
Hardness : According to client’s requirements(HV 850-1050)
Package : Pack each of piston rod in packing paper, packing in sturdy wooden case (the number according to different length), secured by overall metal strapping (we can also follow client’s packing method) Special material and size can be order
2.Piston Rod In Cylinder Series
Surface Treatment : Chrome Plated ( Micro Crack Electroplate Process)
Thickness : According to client’s drawings
Hardness : According to client’s drawings
Package : Pack each of piston rod covering with packing paper in fibre core, 168-500 pcs per set according different size (we can also follow client’s packing method)
3.Piston Rod With QPQ In Gas Spring Series
QPQ Surface Disposal
Thickness:According to client’s technical requirements
Hardness :According to client’s technical requirements
Package : Pack each of piston rod in packing paper/polybag, packing in sturdy wooden case according to different length,secured by overall metal strapping (we can also follow client’s packing method)
Special size and material can be order

Motorcycle Front Fork Tube
1.Unsealed Motorcycle Front Fork Tube
Surface Treatment : Chrome Plated( Micro Crack Electroplate Process)
Thickness:According to client’s technical requirements(>0.015mm)
Hardness: According to client’s technical requirements(HV>700)
Package : Pack each of Front Fork in Bubble Bag, packing in sturdy wooden case according to different length, secured by overall metal strapping(we can also follow client’s packing method)
2.Sealed Motorcycle Front Fork Tube
Surface treatment
Chrome Plated
Thickness:According to client’s technical requirements(0.015mm-0.03mm)
Hardness :According to client’s technical requirements(HV>700)
Package : Pack each of Front Fork in Bubble Bag, packing in sturdy wooden case according to different length, secured by overall metal strapping(we can also follow client’s packing method)

Ball Joint
1.Ball Pin
2.Ball Joint Seats
3.Ball Joint Boot
4.Tie Rod

Rubber Parts
1.Car parts In Absorber
2.O-ring

Plastic Parts
1.Power Tool

Hardware
1.Forging Parts
2.Hardware Nut
3.Hardware Screw

Stamping Parts
1.Vehicle Parts In Absorber

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Piston Rod

In a piston engine, a piston rod joins a pston to a connecting rod.

Many internal combustion engines, and in particular all current automobile engines, do not have true piston rods, and the term piston rod is often used as a synonym for connecting rod in the context of these engines.

All engines with crossheads do have true piston rods. These include most steam locomotives and large marine diesel engines.

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Shock Absorber

When a spring is compressed and then released it will oscillate for a period of time before coming to rest. Applied to a vehicle this action will cause a most uncomfortable ride.

The purpose of a shock absorber is to absorb the energy stored in the spring and so reduce the time that the vehicle is bouncing.

Most modern shock absorbers are hydraulic: they dissipate the energy by pumping oil through small orifices.

A shock absorber includes a tubular cylinder filled with fluid and a piston attached to a metal rod. The piston is not solid, but contains two valves through which the shock absorber fluid can travel as the piston moves up or down.

When the wheel hits a bump or drops into a hole, the shock absorber piston moves through fluid. The difficulty of forcing the piston to move through the fluid creates the “damping” action that helps to stop the springs from bouncing.

Typically, one shock absorber is used for each wheel. Shock absorbers are mounted through the center of a coil spring, beside the spring, or in any number of locations. Shock absorber placement and method of attachment depend on suspension design.

In an electronically controlled suspension system, solenoids can position metering needles within shock absorber passages to allow more or less fluid to pass through the plunger and/or other passages. In addition, air pressure can be applied to the fluid within the shock absorber to “pump up”, or raise, the height of the vehicle.

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