NKS developed the world's first Dacromet continuous steel strip coating equipment
Dacromet technology originated in the United States, is a new processing technology and it is a new type of anti-corrosion zinc aluminum coating. Dacromet treatment can withstand high temperature and corrosion, and its heat-resistant temperature can reach above 350 ℃. Compared with traditional galvanizing method, that produces hexavalent chromium and trivalent chromium, which causes serious pollution to the environment. Dacromet treatment is a kind of chromium-free Surface treatment process, and it does not require three wastes treatment so it reduces treatment costs, it is also called as a "green plating", Dacromet treatment does not contain any cadmium, lead, mercury, hexavalent chromium and other harmful substances to the human body, which is helpful to environmental protection issues. The improvement can meet the requirements of anti-rust surface treatment, which is an innovation of environmental protection technology updated in the 21st. century.
The thickness of the Dacromet film is only 4-8 μm, but its antirust effect is more than 7-10 times that of the traditional electro galvanizing, hot-dip galvanizing or coating method.
NKS's Dacromet treatment process determines that Dacromet has no hydrogen embrittlement, so there is no doubt of unsafeness, so Dacromet is very suitable for coating the stressed parts after heat treatment. Compared with the traditional galvanizing method, the skin is scrapped when the temperature reaches 100 ° C, and the Dacromet film layer can withstand heat above 350 ° C.
京琳公司於達克羅連續式鋼帶燒結塗層設備發展技術上自行研發製造，其防腐蝕鋅鋁塗層鹽霧測試經SGS測試可達240小時，表面顏色有銀灰色 跟銀白色。 本公司所研發之達克羅塗層，具有無氫脆性，高耐熱性，高抗腐蝕性，高防鏽性 及 無環境污染等優點，適用於各類鋼帶上，如戶外門窗伸縮發條，或是汽車業配件如雨刷(刮)等，也可是電器類配件，或是軍用配件如無線電用天線等。也適合運用於各類長期需要暴露在風吹雨淋或是長時間需處在高溫日曬環境中的製品上。
NKS researched and developed the technology of Dacromet continuous steel strips coating equipment. Its anti-corrosion zinc-aluminum coating salt spray test can reach 240 hours by SGS test, and the surface color could be silver gray or silver white. The Dacromet coating developed by NKS has the advantages of no hydrogen embrittlement, it is high heat resistance, high corrosion resistance, high rust resistance, and no environmental pollution. It is suitable for all kinds of steel strips, such as outdoor door and window telescopic springs, Or automotive accessories such as wipers, and also electrical accessories, or military accessories such as radio antennas. It is also suitable for all kinds of products that need to be exposed to wind, rain or long-term exposure to high temperature and sun.
Dacromet coating characteristics:
1. 無氫脆Hydrogen-free embrittlement
Dacromet coatings do not need to be pickled to remove rust, and are cured at high temperatures. The process determines the phenomenon of hydrogen-free embrittlement. It is suitable for high-strength parts, springs and springs such as wipers.
2.高耐熱性High heat resistance
Compared with the traditional galvanized film, which has peeling and cracking at a temperature of less than 100 ° C, Dacromet coating can maintain stable performance and high heat and corrosion resistance at a high temperature of 500 ° C.
3.高抗腐蝕性High corrosion resistance
The anti-rust effect of Dacromet coating is 7-10 times more than that of traditional electro-galvanizing, hot-dip galvanizing or coating method. The standard Dacromet coating does not show red rust after more than 240 hours in salt spray resistance test It can be seen that its corrosion resistance is strong.
4.高滲透性、附著性High permeability and adhesion
Dacromet is treated by dipping, which is not limited by the shape of the workpiece; its good adhesion is not only reflected on the substrate, but also has strong adhesion with other additional coatings.
5.友好環境 無公害 無汙染Friendly environment, no pollution, no pollution
Dacromet sintered zinc-aluminum coating in a closed-loop manner. The water vapor and a small amount of organic compounds evaporated during Dacromet coating and curing are within the specified range, and there is no large amount of environmental pollutants generated in the traditional electroplating process and wastewater, so Dacromet can be described as a "green" process.
NKS developed the world's first Dacromet continuous steel strip zinc-aluminum coating sintering equipment, which is used for sintering steel strips of different widths, which can save production time, reduce human resources, and reduce the steel strip material when the machine is turned on and off waste, and the length of the steel strip can be rolled up according to customer needs. Because it is free of hydrogen embrittlement, it is more convenient for subsequent processing. Compared with the traditional electroplating method, the object can be better processed and more environmentally friendly. It is also dedicated to environmental protection.