The Opinions clearly requires that through special rectification and long-term management of electroplating enterprises in Wujin District, the level of electroplating enterprises in Wujin District will be effectively improved, so as to achieve advanced technology, stable pollution control and scientific management, and completely change the situation of small production scale, backward technology, low industrial level, heavy environmental pollution and many potential safety hazards. At the same time, we will deepen the pollution control of electroplating enterprises, promote the online monitoring system project of pollution control facilities, vigorously promote cleaner production, reduce the total amount of pollutant emissions, promote the standardized, healthy and sustainable development of the whole industry, and provide supporting services for the development of electronics, machinery and other industries in Wujin District.
Due to the soft texture of aluminum, if no surface coating is used, it is easy to be worn by plastic, accelerating its damage, Automatic electroplating line manufacturer This changes the gloss of injection molded parts. The non electroplated nickel coating can increase 50RC on the mold surface, which is enough to protect and extend the gloss and structure of the mold surface. Non electroplated nickel coating can obtain better surface finish quality than aluminum itself, but it must be pointed out that before the mold can be electroplated, some surface treatment is required first. For example, in order to make it reach the quality level of lens level, it is recommended to first process the surface of the aluminum mold to the SPIA-3 level of finish, and then apply 0.0003~0.0005 high phosphorus non electroplated nickel coating before further polishing to make it reach the diamond level of finish.
The Opinions clearly stipulates that the source control and production scale will be strictly controlled, expansion and new construction are strictly prohibited, and the new manual production lines that have passed the special rectification and acceptance will be banned; Eliminate cyanide containing electroplating processes that do not conform to the industrial policy (low cyanide gold plating and silver plating processes are suspended) and cyanide containing zinc precipitation processes; Gradually shut down backward production equipment, and close all manual lines by June 2012; The whole industry promotes cleaner production, Electroplating wastewater zero discharge manufacturer Further reduce the generation and discharge of pollutants. At the same time, in view of the implementation of long-term management in the electroplating industry, Wujin District will also strengthen facility management, strengthen supervision, speed up the construction of technical defense, strengthen the certification and training of electroplating enterprises, assist electroplating enterprises to establish and improve management systems, and truly achieve all-round monitoring of the electroplating industry in the whole district.
There are many methods to establish a satisfactory plating layer on the hole wall drilled on the substrate, which is called hole wall activation in industrial applications, Electroplating equipment The commercial production process of its printed circuit requires multiple intermediate storage tanks, and each storage tank has its own control and maintenance requirements. Through hole electroplating is a necessary subsequent manufacturing process in the drilling process. When the drill bit drills through the copper foil and the substrate below it, the heat generated will melt the insulating synthetic resin that forms the substrate of most substrates. The melted resin and other drilling debris will accumulate around the hole and be coated on the newly exposed hole wall in the copper foil. In fact, this is harmful to the subsequent electroplating surface. The melted resin will also leave a layer on the hole wall of the substrate, which shows poor adhesion to most activators. This requires the development of a kind of technology similar to the chemical action of stain removal and corrosion inhibition. A more suitable method for PCB prototyping is to use a specially designed low viscosity ink to form a high adhesion and high conductivity film on the inner wall of each through hole. In this way, it is not necessary to use multiple chemical treatment processes. Only one application step is needed, followed by heat curing, and continuous coating can be formed on the inner side of all hole walls. It can be directly plated without further treatment. This kind of ink is a resin based material, which has a strong adhesion and can be easily bonded to most of the thermally polished hole walls, thus eliminating the step of back etching.
In addition, in accordance with the special rectification work policy of "incremental control and standardized rectification" for the electroplating industry, consolidate and deepen the achievements made in the rectification of the electroplating industry, and ensure that the source control of electroplating enterprises, the operation of pollution prevention facilities, the management and disposal of hazardous waste, the prevention and control of occupational diseases, the implementation of safety production management, and the management of highly toxic substances are in place throughout the region Waste water and waste gas continue to be discharged in a stable manner up to standard.
