Dewin Group Limited

Shock absorber valve body is made by powder pressing and sintering (Powder Metallurgy) technology, then do black steam oxidation as per surface treatment.

Technical information:

1.    Material: MPIF 35 FC - 0205

Equivalent material: DIN 30910 - Sint C10

2.    Chemical composition

3.    Hardness range: HRB 40 – 100 Before black oxidation (around 50 HRB) 

                                                          After black oxidation (around 85 HRB)

4.    Density range: 6.3-6.9 g/cm³

5.    Possible tolerance for ID: 0.03 mm, for OD: 0.05 mm

6.    General tolerance: ISO 2768 – m

7.    Degree of oxidation: 2-5%, thickness 0.003-0.005 mm Fe3O4

Packing of shock absorber valve body:

1.    Rolled by anti-rust kraft paper, 5 or 10 pcs per roller / Plastic blister packing

2.    Neutral standard carton or to your choice

3.    Wooden boxes or pallets

Process flow of shock absorber valve body:

Powder mixing – Pressing – Sintering – Sizing – Ultrasonic cleaning – Steam oxidation – Oil impregnation – Final inspection – Packing – Storage

Quality control of shock absorber valve body:

Work instruction paper and pictures at each working position

Process flow card with each tray (Fully traceability)

Sampling inspection and routing inspection

TS:16949 5 tools: PPAP, APQP, FMEA, SPC, MSA

Dimensional report as per your requirement by CMM, projector, etc

With productive and professional automobile car shock absorber valve body factory, Dewin Group Limited

can supply you with customized service. As one of the credible manufacturers and suppliers shock absorber

valve body of various types in China, we have custom products of unique design serving for you.

http://www.dewin-powdermetallurgy.com/