New Silicon Surface Treatment Agents For Carbon Steel
silane treatment technology is a relatively mature new nano-scale metal pretreatment technology at present. It replaces the traditional iron-based and zinc-based phosphating products.silane surface treatment agent for carbon steel does not contain harmful heavy metal ions such as nickel, zinc, and manganese, and will not pollute the environment;
There is no slag in the silane treatment process, silane treatment agent pre-coating for carbon steel ,the reacting time is short, the control is simple, and the maintenance is simple; silane treatment agent pre-coating for carbon steel can also treat a variety of metal substrates such as cold-rolled steel, aluminum, galvanized steel, and coated plates in line, providing them with superior anti-corrosion properties.
surface pretreatment agent for carbon steel is gradually replacing the original pretreatment process with its excellent environmental protection and energy-saving performance.
Second, the chemical principle of silane treatment
The product is based on polymers with organosilane functional groups, which can provide us with the required anti-corrosion and enhanced coating adhesion requirements.
bt - 2365 is oriented silicon steel environmental protection coating liquid used for insulation coating on the surface of the oriented silicon steel processing, suitable for roller coating processing. The coating liquid has good uniformity, stability and film formation. The insulation coating is uniform and bright, good hardness, good surface resistance, can well resist the strong corrosion solution, weldability, machinability, 800℃ to remove the flame can still do not drop powder, excellent insulation and adhesion to the coating.
liquid coating accord with RoHS environmental protection requirements;
comprehensive performance meet and exceed import environmental protection coating requirements, can achieve the long distance transportation and storage;
for two roll groove and single high-speed roller coating;
are not oriented silicon steel containing chromium coating is still the mainstream of the market, according to the current market, estimates that about 85% or more of the market dominated by chromium coating. Chromium containing coating liquid has high toxicity and carcinogenicity in production, coating, waste liquid treatment and coated steel plate processing, especially the hexavalent chromium contained in it. Although the hexavalent chromium can be converted into low-toxicity trivalent chromium in the coating sintering and curing process, under certain environmental conditions, the trivalent chromium will still be converted into hexavalent chromium. In the use process, because there will be trivalent chromium in the coating and the hexavalent chromium from three prices, it will cause certain health damage to the operators and pollution to the environment. With the continuous improvement of people's awareness of environmental protection, it has been realized that chromium coating on people's health and natural environment caused serious consequences. Therefore, many chemical plants in Europe, America, China and other countries have given up the use of chrome-containing coating in the production process of silicon steel, and use chrome-free environmental protection coating. The performance of environment-friendly thin coating has been significantly improved, which can meet the needs of users. The conditions for replacing chrome-containing coating have been basically mature, and it has broad application prospects. The formation of a variety of types, different uses, different performance of high functional environmental protection coating is the development trend of non-oriented silicon steel coating, the company is also with the development trend, developed bt-2365 non-oriented silicon steel coating is fully in line with all the characteristics of non-chromium, can unswervingly choose, but now the vast majority of companies in China are still using chromium non-oriented silicon steel coating, Wuhan Steel's T4 coating, Angang's TM4 coating, Baosteel's A, H coating, TiSCO's TC series coating, Nippon Steel's L, L2, L3 coating, and Russia's Novolipetsk's TWl coating, etc. Most of these semi-organic coating products are chrome-containing coatings.
