| Product Details | |
| Product Name | Sintered parts |
| Material | Iron powder, alloy powder,precious metal powder |
| Technology | Sintering - Powder Metallurgy |
| Surface Treatment | High frequency quenching, oil impregnation,CNC,vacuum cleaning,polishing, |
| Apperance | No crumbling, cracks, exfoliation, voids, looseness, metal pitting and other defects |
| Process Flow |
Powder mixing - Forming - Sintering - Oil impregnation - Sizing - Ultrasonic cleaning - Steam oxidation - Oil impregnation - Final inspection - (+ DP4 bushing / +PTFE band) Packing |
| Application | For automobile, motorcycle and bicycle shock absorber |
| 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 |
Product features:
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.
