1. Toxicity and pollution levels differences in chemical drum accessories
Trivalent: the price of trivalent chromium is higher, but the toxicity is low, only 1% of hexavalent chromium and the passivation effect is also good.
It can meet the requirement of 72-hour salt spray white rust less than 5%, the harm of chromium 3 is small, and the pollution degree of chromium 3 plating is reduced.
Hexavalent: Hexavalent chromium passivation process has many advantages, such as high corrosion resistance, self-healing ability of self-repair corrosion resistance, can easily passivation out of silver, blue and white, colorful, military green, black and other colors, raw material sources are wide and cheap.
However, hexavalent chromium is a carcinogen and has serious harm to the environment and human health.
Related drum accessories:
2. The urgency of trivalent passivation:
The European Union signed a decree in Brussels in 2003 banning the use of hexavalent chromium in vehicle materials and parts from 1 January 2003.
Since August 13, 2004, the use of hexavalent chromium passivation process has been stopped in China's production of export products.
Short comments: As one of professional drum closures suppliers in China, we provide customers with drum closure, Drum Locking clamp, Drum Locking bolt and other products of CR3+ galvanizing, welcome to choose and buy.
Popular Science: Lubricating Oil Storage TipsJuly 1, 2022In the storage of lubricating oil, the prevention of deterioration and pollution are the two most basic principles.The deterioration of lubricating oil mainly refers to the failure of lubricating oil ...view
Express Delay ReminderJune 30, 2022Express Delay Reminder:Some of our customer reflected that the international express is delayed, there are many reasons for that.The impact of COVID-19, many countries are not recovered from the epid...view
Introduction To The Shanghai PortJune 30, 2022Shanghai Port is a port of Shanghai, China, located in the middle of the Chinese mainland coastline and the Yangtze Estuary. It passes through the northern and southern coastal regions of China and th...view
To Strengthen The Spray Room And Drying Room Corrosion ProtectionJuly 4, 2022Through comparison, it is found that the original steel barrel coating production line is all developed with water curtain spray paint. While the trough which often contacts with water and other mater...view
What Is the Importance of the Sealing Performance of Plastic Drum Caps?March 13, 2023The types of plastic barrels are diverse, but they are mainly used for storage and transportation, and the key performance of these two purposes is sealing. When customers purchase plastic drum caps, ...viewPerformance Characteristics of the Steel DrumOctober 25, 2023The application of steel drums has only a history of just over one hundred years, but it has developed rapidly and has a wide variety of types. It is widely used in industrial product packaging, trans...view
EN
ko 
fr 
de 
es 
it 
ru 
pt 
ar 
vi 
th 
