Application
The screw zinc coating turns white and black after neutral salt spray. Let’s learn how to solve it together?
galvanized fasteners (such as screws, nuts, etc.) have a wide range of applications in various industries such as auto parts, electrical appliances, electricians, and hardware tools. The sockets, wall switches, and digital products of the author’s company basically all have corresponding galvanized fasteners. The galvanized screws (2~5g/piece) of a certain foreign trade spool product require…
Analysis helps you solve the troubles of pinholes and pitting in the chrome plating layer!
The hard chromium layer has extremely high hardness and wear resistance. Hard chromium plating is widely used in the surface treatment of various parts. The quality of the coating directly affects the service life and work efficiency of the parts, but pitting and pinholes are also difficult problems that often appear in the coating and…
Analysis of Acidic Bright Tin Plating Solution
a. Determination of stannous content. See the determination of stannous content in tin-lead plating bath b. Determination of sulfuric acid content. The following reagents are required: 1) 1 mol/L NaOH (40.0 g/L). 2) 4% ammonium oxalate. Dissolve 4 grams of ammonium oxalate in 96 milliliters of distilled water. 3) Methyl red indicator. Dissolve 1 g…
Determination of sulfuric acid content in acid sulfate copper plating bath
Determination of sulfuric acid content: 1 reagent; 1) 0.1% methyl orange. Dissolve 0.1 g of this salt in 100 ml of water. 2) 1 equivalent of sodium hydroxide (40 g/L) 2.2 Analysis; 1) Use a pipette to draw 5 ml of the solution into a 250 ml Erlenmeyer flask. 2) Add 250 ml of distilled…
The “Preferred Brand” of China’s Top 500 Real Estate Development Enterprises was released, and the Blue Sky Dolphin won the champion of algal mud!
The China Real Estate Association and E-House China Real Estate Evaluation Center jointly organized the 2018-2019 China Real Estate Development Enterprise Top 500 Preferred Brands and was released on March 20, 2019. Blue Sky Dolphin was awarded the China Real Estate Development 500 with its strong brand influence and market appeal. The preferred brand of…
Is the wastewater from the water-based paint production process hazardous waste? The Minister of Ecology and Environment said
Is the wastewater generated during the production of water-based paint hazardous waste? What should I do? Do paint companies have such questions? Yesterday, the Minister of the Ministry of Ecology and Environment spoke, let’s see what he said! Letter: I am an enterprise that produces water-based paints (water-based acrylic and water-based epoxy paint). During the…
How to achieve effective treatment of exhaust gas in the coating industry?
Pollution in the chemical industry has always been a headache, and it has been repeatedly banned. According to the modern classification of chemical products, coating belongs to fine chemical products. Modern coatings are gradually becoming a class of multifunctional engineering materials, and they are an important industry in the chemical industry. At present, my country’s…
Diversified development of water paint, widely used in many fields
In recent years, the term “water paint” has become a high-frequency term in the coating industry, and the country has also increased its supervision of environmental protection Intensive efforts have also put forward higher requirements for the coating of automobiles, ships, construction machinery and other fields. From the traditional mode to the environment-friendly type, the…
Water-based architectural coating solid waste management group standards will be released soon
In our review of the 2008 version of the “National Hazardous Waste List” (old list), the relevant waste generated during the production and use of paint is listed as hazardous waste, and is Management and disposal of hazardous waste control standards. As time goes by, in the newly revised “National Hazardous Waste List” in 2016,…
Jotun Wind Power Blade Coating Green Solution Appears at the Fifth China International Wind Power Composites Summit Forum
On April 11-12, 2019, the Fifth China International Wind Power Composites Summit Forum (CWPC2019) was grandly held in Chongqing, China. In the conference topic 1: Technological Innovation, Achieving the Future-“Innovative Materials, Innovative Technology”, the senior R&D chemist of Jotun Coating (Zhangjiagang) Co., Ltd. made the title ” Wonderful speech on Wind Turbine Blade Coating Green…
