Overview
Quick Details
CNC Machining or Not:CNC Machining
Type:Etching / Chemical Machining, Other Machining Services, Turning
Material Capabilities:Aluminum, Brass, Precious Metals, Stainless Steel
Micro Machining or Not:Micro Machining
Place of Origin:Guangdong, China (Mainland)
Model Number:OEM
Material:Stainless Steel
Service:Customized OEM
Size:Customized Size
Certificate:ISO14001;2015 / ISO9001;2015
Standard:GB / DIN
Packaging & Delivery
Packaging Details
PE bags and carton, according to your demand.
Delivery Time 7 days
Product Description
More Productions
Production Process
Inspection Equipment
Our Certifications
Packaging & Shipping
Trade & Market
main markets
| total revenue(%) |
Southeast Asia
| 20.00% |
South Asia
| 20.00% |
Mid East
| 18.00% |
Eastern Europe
| 10.00% |
Northern Europe
| 10.00% |
North America
| 10.00% |
Africa
| 2.00% |
The amount of free sodium hydroxide is too high or too low: When the content of free sodium hydroxide in the solution is too high, the dissociating concentration of stannate decreases, the precipitation of tin becomes more difficult, and the tin content in the coating decreases, relatively speaking , making the precipitation of copper easier. When the free sodium hydroxide content is too low, the stannate undergoes a hydrolysis reaction and a metastannic acid precipitate is formed. This precipitate is suspended in the solution, causing rough burrs in the upward portion of the plated part.
Another example is the influence of the coating quality is so great that the thicker the coating, the greater the internal stress of the coating. The thickest coating on the end of the thread, the coating is easy to fall off, it is also easy to produce rough, scorch and other defects. Plating solution dispersion capacity (equal plating capacity), the shape of the parts, size, length, the impact of plating current, the amount of plating tank loading, passivation caused by loss of coating thickness and so on. Although the influence of these factors on the uneven thickness distribution of the coating has certain rules to follow, many factors change
Therefore, the coating thickness design of fasteners should take into account the non-uniformity of the thickness distribution of the coating. As far as possible, the brightness and corrosion resistance of the entire coating surface of the fastener meet the technical requirements, and the local thickness of the coating must also be avoided. Only by continuous improvement in production practices can we produce high quality fastener products