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Address: RuiAn square, No.2228 Hongxing Road,Xiuzhou District, Jiaxing ,Zhejiang,China
Contact name:Shirley Wu
Jiaxing Dexun Co.,Ltd. |
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Carbon Steel Galvanized Black Oxidation DIN Flange Welding Nuts.
Description
The cold heading process is one of the new processes of metal pressure machining with little and no cutting. It is a processing method that uses the plastic deformation generated by the metal under the action of external force, and with the help of the mold, the metal volume is redistributed and transferred to form the required parts or blanks. The cold heading process is most suitable for the production of standard fasteners such as bolts, screws, nuts, rivets, and pins.
Operation process of black oxidation treatment:
Workpiece clamping → degreasing → cleaning → pickling → cleaning →
oxidation → cleaning → saponification → hot water boiling and
washing → inspection.
(1) Workpiece clamping: According to the shape and size of the work
piece, a special fixture or spreader should be designed. The
purpose is to leave enough gaps between the workpieces, the
workpieces cannot contact each other, so that each workpiece can be
completely immersed in the oxidizing solution to be oxidized.
(2) Degreasing: The purpose is to remove oil stains on the surface
of the workpiece. After machining (bluing and blackening is the
last process), the surface of the workpiece will inevitably not
leave oil stains. This is especially true when using anti-rust oil
for inter-process anti-rust. Any oil pollution will seriously
affect the formation of ferroferric oxide, so it must be removed
before turning blue and black.
| Product name | Carbon Steel Galvanized Black Oxidation DIN Flange Welding Nuts |
| Material | Carbon steel |
| Surface Treatment | Black Oxidation |
| Type | Flange weld nut |
| Feature | Durable;Preservative |
| Size | Customized |
| Packing | Poly bag+Carton with pallet |
| Grade | 10.9 |
| Service | Customized OEM /ODM |
| Standard | DIN,GB,ISO,JIS, |
| Certification | ISO9001 |
| Process | Cold heading;Tapping |
Factory Diaplay
Inspection Equipments
Package Room
Q1: Can I visit your factory?
A2: Yes! Warmly welcome to visit our factory. It would be Great if
you can inform us in advance.
Q2:The quality of your products?
A2:The company has advanced production and testing equipment .Every
products will be 100% inspected by our qc department before
shipment.
Q3:How about your price?
A3:High quality products with reasonable price. Please give me a
inquire, I will quoted you a price for you refer at once.
