The piston and the bottom valve mainly provide damping for the shock absorber ,rod guide mainly guide for the movement of piston rod. Technological process: mixing powder – forming – sintering – cleaning -Steam treatment – Bending-Press bushing-Appearance inspection, packing Mixing powder: Fe – C – Cu powder by high density sieve to remove impurities, automatic blending machine 360 ° rotating more than 4 hours, make the material mix evenly Molding: precision mould with automatic CNC hydraulic press to ensure the density of all parts meet the process requirements after pressing. Sintering: the product is controlled by the net belt type sintering furnace, which ensures the mechanical properties and hardness of the products to meet the technical requirements. Oil immersion: place the product in a high pressure vessel so that the oil can fully penetrate into the product’s pores and avoid the rust of the later cycle. Plastic: precision mould with full automatic CNC hydraulic press, the product density and mechanical properties are further improved after pressing, and the dimensions meet the requirements of the drawing. Machining: finish the hole, groove and other details of the product. Cleaning: the mesh belt adopts ultrasonic cleaning machine to remove impurities and iron filings. Steam treatment: the product is treated by steam in the electric furnace, which improves the mechanical properties of the product, and the surface oxidation layer helps to prevent rust. Packing: the piston is covered by a fully automatic numerical control machine covering the PTFE lubrication belt. Press bushing: pressed into DU bushing. Appearance inspection, packing.

item	value
Warranty	1YEAR
Place of Origin	China
	Zhejiang
Brand Name	Max
Density	6.4-6.9 g/cm3 after steam oxidation
Material	Fe-C-Cu Powder
Surface treatmen	Steam oxidation, 2 hours, Fe3O4: 0.004-0.005mm, degree of oxidation 2-4%
Service	OEM ODM
Density	6.4-6.9 g/cm3 after steam oxidation
Type	DRILLING, Milling, Turning
Model Number:	Custom-made Service
Product name:	Powder Metal Sintered Part for Shock Absorber
Process	Sintering+ Cnc
Application	Shock Absorber
Unspecified	ISO 2768 - m / H14, h14, +- IT14/2
Our Advantages	1. More than current 3000 moulds ,save your mold cost 2. ISO/TS 16949:2009 certificate 3.Competitive price 4.Strictly quality control capacity of APQP,FEMA,MSA,PPAP,SPC

Powder metallurgy is a process technology for preparing metal powder or using metal powder (or a mixture of metal powder and non-metal powder) as raw material, forming and sintering with molds to manufacture metal materials, composite materials and various types of products Shock absorber powder metallurgy parts include piston , valve , rod guide .