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| Place of Origin: | China |
| Brand Name: | XIAYI |
| Certification: | ISO9001:2008 |
| Model Number: | Φ25mm |
| Minimum Order Quantity: | 1,000pcs |
|---|---|
| Price: | negotiation |
| Packaging Details: | According to customer’s demand |
| Delivery Time: | Two weeks after payment |
| Payment Terms: | T/T, Western Union, L/C |
| Supply Ability: | 30,000 pcs per month |
| Product Name: | Sinter Piston | Material: | Fe-C-Cu |
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| Crushing Strength: | 7.5KN | Color: | Black |
| Application: | Car Shocks | Density: | 6.8 G/cm3 |
| Outer Diameter: | 25mm | Hardness: | HRB60-80 |
| High Light: | shock absorber parts,damper piston |
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6 oil holes design sinter piston with small grooves used in car shocks
Specifications:
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Physical performance for shock piston (with banding disc) |
tensile strength |
More than 18MPa |
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elongation @ break |
More than 160% |
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shore hardness (bands) |
57 - 61 |
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density |
2.06 – 2.19 g/cm3 |
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wear |
Less than 50mg |
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friction coefficient |
Less than 0.2 |
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hardness (sinter piston) |
HRB60-80 |
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Technical requirements for sinter piston |
Raw material F50 - U3 - 66 or FC - 0208 |
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Steam treatment |
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OD tested by digital air gauge |
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Description:
High quality shock absorber piston, used in various cars and trucks
Properties of banding ring can be tested in our company, we have the following test equipment:
Tensile strength testing machine, friction & abrasion testing machine, density balance, coefficient of linear
expansion testing machine and so on.
We also design and manufacture non-standard testing machine which can do blow-off test after banding.
Adhesion test: ring must be tested in shock absorber according to characteristics below:
Piston must have a minimum diameter of groove.
---pressure tube must have maximum internal diameter
---traction force from 4700 to 5390 N and speed=1.5m/s according to condition below
---course =50mm
---frequency =574RPM
---moment must be applied at the end of piston rod = 3Nm
---temperature = 130/160℃
Ring withstand 10min without deformation on adhesion test.
Properties of the banding ring:
Density = 2.03-2.110g/cm3
Hardness = 57-61 shore “D”
Tensile strength = 16Mpa minimum
Elongation = 300% minimum
Advantage of powder metallurgy:
Unique chemical composition and mechanical physical properties
Facility involved for material Q&C
Chemical composition:
Ø OBLF Spectrometer with 29 channels in bi-metal of AL+FE
Mechanical Property
Ø Hardness test
Ø Mechanical property inspection
Ø Impact inspection
Microstructure:
Ø Microscope Metallographic Analysis as per AQL based on heating number
Structure tightness
Ø Destruction test
Ø Weight test
Applications:
Car or motorbike shock absorbers
Competitive Advantage:
1.Professional manufacturer
2.Close tolerance and high density
3.Uniform heat treatment and steam treatment
4.Precise metal-working finishing
5.Higher mechanical performance
6. Tooling designed by XIAYI can assure the delivery date
7. A whole set of testing equipment
Picture show:
Contact Person: Leela
Tel: 008618958226902
