午夜尤物禁止18点击进入,亚洲熟妇无码AV另类VR,成人午夜AV亚洲精品无码网站,性色av无码专区一ⅴa亚洲,99久久婷婷国产综合亚洲

First, the difference between hardware and plastic plating materials

The substrate for metal plating is metal, such as iron, zinc alloy, copper alloy, and the like. The plastic plated substrate is plastic. Because the substrate is different, the process of the previous process is completely different, but the subsequent plating is basically the same. This is the difference found between the two materials.

Second, the difference between hardware and plastic plating price

Regarding the price of the two: depending on the material you use for plating, depending on the thickness requirements and test requirements of the coating, many factors will affect the plating price. For example, you need to chrome a plastic part with a small surface area. It is cheaper, it is more expensive to gold plate a larger hardware, and the thickness of the coating directly affects the price. Therefore, it is necessary to analyze the problem according to the actual situation, and the two are not comparable.

However, if it is the same coating, plastic plating is more expensive, because the plastic plating process is a few more steps, and it is not easy to plate, the difficulty is relatively large, and the cost is naturally high.

Third, the difference between hardware and plastic plating process

The process of plastic plating and plastic plating is: degreasing - hydrophilic - roughening - neutralization - prepreg - activation - degumming - chemical nickel - coke copper - acid copper - nickel - -chromium

The process of metal plating is: cleaning - copper plating - plating semi-gloss nickel - electroplating all-light nickel - electroplating gold - drying

Fourth, the difference between the characteristics of hardware and plastic plating

The characteristic of plastic plating is that it is not electrically conductive, and it needs to be electrically treated first, that is, activated and electrolessly plated, so that the surface is firmly adhered to a metal film. There is no difference between it and the hardware plating.

Five, the difference between hardware and plastic plating product design

Metal plating products can be powered by the hardware itself, generally only consider the product itself is OK. However, plastic plating products should not only consider the structure of the product itself, but also the layout of the product and the design of the nozzle. If there is no suitable plating nozzle for plastic plating, it will cause plating deformation or water plating.