The piston rod is hard chromium plating on steel substrate surface coated with a thick layer of chromium plating and its thickness
is in commonly 10 to 30 microns , using the characteristics of chromium improve parts' performance ,such as hardness, wear
resistance, heat resistance and corrosion resistant .
The process features of hard chrome plated piston rod:
1) the cathode current efficiency is as high as 25% ~ 35%, and the deposition rate is very fast.
2) high hardness (900 ~ 1200HV), uniform and dense network cracks, good abrasion resistance;Microcracks can be produced, and the
number of microcracks can reach 800-2000 pieces/cm (according to the need), and improve the anti-corrosion ability.
3) good dispersion ability of the plating bath, uniform thickness of the coating, not easy to produce the phenomenon of rough
blister tumor, and the appearance of chromium layer is bright and smooth;
4) the coating has strong bonding strength with the substrate, and the pretreatment is similar to the traditional technology, and
the operation is easier than the traditional process;
5) the content of trivalent chromium in the bath is allowed to be wide, and it usually does not need to discontinue electrolysis
for trivalent chromium;
6) the plating solution contains no fluoride, no rare earth elements, and no corrosion of the workpiece without low power.
2.PROCESS FLOW
1). Process flow of hydraulic piston rod.
Connecting rod using 35 steel, processing technology: cold-drawn forming a turning a continuous medium frequency induction
hardening, a cylindrical grinding, a fine grinding cylindrical a fine grinding cylindrical shearing section.at finishing a plating
chromium to hydrogen tempering shearing section.at fine grinding.In order to improve the surface quality and corrosion resistance
of piston rod, super finishing process was added before chrome plating.
2). Piston rod plating process.
Inspection before plating - pack hanging fixture - chemical degreasing, electric lift oil - water - activation pickling - water
washing- the moment, the piston rod chromium plating, recycling water - water washing - unloading hanging fixture - inspection
Application
Piston rod is mainly used in hydraulic pneumatic, engineering machinery, automobile manufacture with the piston rod, guide pillar
plastic machinery, packaging machinery, printing machinery, roller, textile machinery, transportation machinery with axis, linear
motion with the linear optical axis.
Company Profile
FAQ
1. who are we?
We are based in Zhejiang, China, start from 2016,sell to Eastern Europe(35.00%),North America(20.00%),Southern
Europe(11.00%),Southeast Asia(10.00%),South America(10.00%),Africa(3.00%),Mid East(3.00%),Oceania(3.00%),Western
Europe(2.00%),Eastern Asia(1.00%),South Asia(1.00%),Northern Europe(1.00%). There are total about 5-10 people in our office.
2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
3.what can you buy from us?
Piston Rod,Coilover,Motorbike Shock Aborber,Sintered Part,Spring
4. why should you buy from us not from other suppliers?
Max's engineers team with rich experiences in the line of auto parts, they will not only source products for customers, but also
provide technical support , production all-time supervision and quality track service . OEM and ODM both available .
5. what services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,EXW,FAS,CIP,FCA,CPT,DEQ,DDP,DDU,Express Delivery,DAF,DES
Accepted Payment Currency:USD,EUR,CNY;
Accepted Payment Type: T/T,L/C,D/P D/A,MoneyGram,Credit Card,PayPal,Western Union,Cash;
Language Spoken:English,Chinese
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