What are the quality requirements for electroplated products from plastic mold manufacturers
Many of the products from injection molding manufacturers have undergone secondary surface treatment. Compared to processes such as spraying, the effect of electroplating is particularly difficult to control. Therefore, beauty instrument manufacturers need to evaluate the expected requirements of customers and evaluate the quality of the products
Evaluate the effectiveness and promptly screen out defective products. This can provide customers with better product services. At the same time, there is no need to constantly ask customers to sign samples. Many of the products of injection mold manufacturers for encapsulation are surface treated. compare
For processing such as spraying, the effect of electroplating is particularly difficult to control, so beauty instrument manufacturers need to evaluate the expected requirements of customers, judge the effectiveness of products, and promptly screen out defective products. This can provide customers with more
Good product service. At the same time, there is no need to constantly ask customers to sign samples.
For customers, the first requirement is appearance. Generally, the brightness can be achieved, but there is a difference in the degree of brightness. A better plated part has a glossy appearance with a “dark black” appearance, and the brightness is visually “thick”, which is essentially the surface
The micro state of the material causes it, which means that the micro surface needs to be relatively flat. There should be no mist on the coating, and even slight mist cannot be detected under strong light or direct view. It can only be distinguished under specific angles and light, so it is easy to be ignored
Visual. There are also defects such as missed plating, peeling, burrs, pitting, and deep plating, which are generally not allowed in the quality standards of hardware packaging and injection molding manufacturers. Secondly, in terms of internal quality, plastic electroplating for automobiles and motorcycles is crucial in terms of technology
There are higher requirements at the surgical level,
So how do we confirm the intrinsic quality of electroplated products?
1. The corrosion resistance test generally lasts for 24 hours, 48 hours, etc. The test time and method can be selected according to actual usage conditions. Neutral salt spray test (pH 6.5-7.2 sodium chloride solution) with corrosion resistance of 8 or above after 24 hours, required
Higher ones need to reach 48h8-9 level or above.
2. The adhesion strength of the coating is determined by the 100 grid test, which involves using sharp edges with a spacing of 1mm to cross cut 10 lines horizontally and vertically. The horizontal lines should expose the plastic, and then use the specified adhesive paper to stick it before pulling it open. If 90% of the lines do not fall off or do not fall off at all, it is considered qualified.
3. The high and low temperature cycling test belongs to the assessment of the adhesion of the coating. Generally, it is required to place the plated part in an environment of -30 ℃ for 1 hour, then at room temperature for 1 hour, then at 70 ℃ for 1 hour, and then at room temperature for 1 hour as a cycle. The high adhesion requirement
The 4-cycle inspection is qualified, that is, the coating must not have bubbles, poor adhesion, or other phenomena.