Are you searching for new galvanizing cranes or hoists? When you need to buy new or replace lifting equipment in your galvanizing operations, it’s important to understand your processes and to understand the equipment that can withstand the environment.
For more Hot Dip Galvanizing Machine For Metal Productinformation, please contact us. We will provide professional answers.
The galvanizing process can be one of the harshest environments for the lifting components doing the work. In this post, we will talk about hot-dip galvanizing process, what additional protections your lifting equipment could have, and why it is important to work with an experienced crane manufacturer or dealer when equipping your galvanizing line.
Galvanizing lines are extreme environments. They are hot, steamy and use aggressive chemicals that can create an environment with caustic fumes and corrosive splatter. Overhead cranes and other lifting equipment operating in galvanizing lines are working in these conditions and, many times, working directly above pickling tanks.
The galvanizing process can include these steps. First the item to be galvanized is cleaned which could include dipping the item into a caustic solution. Once cleaned, it must be rinsed and could be dipped into a solution to remove oxides, scale and other corrosion, then dried. Once dried, the item can be immersed into the zinc bath and dried to complete the galvanizing process.
The galvanizing cranes and components used in these environments need to be made to withstand the harsh environment. The main concern is protecting the electrical controls and lifting components against corrosion. The chemicals and moisture in the environments can cause equipment to start to break down. Many times, a specialized paint or coating is used as an additional barrier to the chemicals. Safety of the operators around the process and the process itself is a concern. When designing a crane or choosing hoisting equipment for galvanizing, it’s important to consider the process.
Productivity of the process can be found in the travel movements. It is important to choose a hoist that has multiple or variable speeds because this will allow you to slowly dip the product into and out of the hot-dip pools. Not only that, it is important that the components be dipped for the proper amount of time and allow for excess chemicals to drain off into the pool before moving to the next step.
Working with an experienced crane manufacturer or crane dealer is critical when you are in the market for a galvanizing crane. These experts will know what equipment is designed to work in the extreme galvanizing process you have in place. In the hot-dip galvanization process, the hoist used needs to be rated for a high number of start and stop rotations due to the number of times the products need to be dipped into different pools during the galvanization process.
Hoists like the Demag DH wire rope hoist are designed to be used in extreme environments. A hoist must meet the proper duty factor for the environment and lifting it will be performing. The DH is specially designed to combat the elements of the harsh environments it could be operating within.
The conical rotor brake motor paired with a mechanical microspeed allows the DH to position loads precisely while meeting the duty factors of the environment. The use of the conical rotor motor and mechanical microspeed create a wide range of speed so some actions can be done very slowly while others quicker. The conical rotor brake motor and mechanical microspeed also minimize the electrical components needed for travel and braking. The DH can be coated with a specialized paint to protect against corrosion in galvanizing and other environments.
Organizations like HMI, part of the industry group the Material Handling Institute (MHI), give hoist manufacturers guidelines for the design and duty specifications of hoists to promote standardization and safety across the industry.
When you need to add or replace lifting equipment in your galvanizing processes, make sure you work with a knowledgeable crane manufacturer and crane dealer. Working with experts who understand the environment lifting equipment will be operating within and have specially designed components will allow your processes to meet your needs.
Contact us to discuss your requirements of Custom metal plating machine. Our experienced sales team can help you identify the options that best suit your needs.
Start with understanding your internal processes and find the partner that can meet your needs for galvanizing cranes and equipment. Contact us today!
An artful sculpture glinting under the sun, a sturdy bridge arcing over a rushing river, a beautiful architectural wonder: all these steel structures utilize hot-dip galvanizing for corrosion protection. Throughout the world, new technologies and creative chemistry continue to evolve this 150 year old process. Once used only for corrosion protection, hot dip galvanizing is now specified for its cost-effectiveness, versatility, durability, longevity, and sustainability. Hot dip galvanizing: protecting steel for generations!
Hot-dip galvanizing is the process of immersing fabricated steel into a bath of molten zinc. A wide variety of shapes and sizes can be galvanized from small nuts and bolts to large structural beams to intricate artistic pieces. Galvanizing facilities are available throughout North America, and steel can be galvanized year-round. Prior to immersion in the zinc kettle, the steel must be chemically cleaned to remove all oil and grease, dirt, mill scale, and oxides. After cleaning and drying, the steel is immersed in the molten zinc. The 98 % pure zinc bath is heated to 830 degrees Fahrenheit. While in the kettle, the zinc metallurgically reacts with the iron in the steel to form a series of inter metallic layers. After the steel is removed and cooled, it is inspected to check the zinc coating thickness and appearance. Any sharp rips or spikes are removed, and the thickness is measured. The final look of the galvanized coating can vary from piece to piece. The appearance is determined by steel chemistry, zinc bath composition, and cooling rates. Whether bright and shiny or a matte gray, the final visual appearance does not affect its corrosion protection.
While hot dip galvanizing is primarily specified for its superior corrosion protection, it may also be chosen for its durability, maintenance-free longevity, environmental sustainability, and aesthetics. Steel is an abundant and efficient building material, but when exposed to the atmosphere it immediately begins to corrode. The hot-dip galvanized coating provides three levels of corrosion resistance: barrier protection, cathodic protection, and the zinc patina. The hot-dip galvanized coating effectively protects steel from the environment, providing barrier protection. Galvanizing also provides cathodic protection meaning the zinc will corrode first to protect the underlying steel. Even if the coating is scratched, the surrounding zinc will continue to resist corrosion of the steel. As zinc is exposed to the environment, it naturally forms byproducts on the surface known as the zinc patina. The zinc patina further slows the corrosion rate of the zinc and acts as an additional environmental barrier.
Galvanized steel products deliver proven durability. Even in harsh conditions, the inner metallic layers formed in the galvanizing kettle make the coating harder than the base steel. This provides unparalleled abrasion resistance. Galvanizing also provides uniform protection. The zinc coating grows perpendicular to the steel so corners and edges have the same thickness as flat surfaces. The immersion process also ensures hollow and tubular structures are evenly coated and protected inside and out. Because of its maintenance-free longevity, hot-dip galvanized steel is utilized in some of the harshest environments. Commonly used on structures exposed to the atmosphere, galvanized steel can provide over 70 years of maintenance-free corrosion protection. Hot-dip galvanizing is commonly used to protect steel embedded in soil and concrete, or submerged in water. Galvanized steel has a proven record of longevity in all of these environments. Maintenance-free longevity also delivers economic value. A final cost of hot-dip galvanizing can amortized over the entire life of the project. Hot-dip galvanized steel is highly sustainable, and provides many environmental benefits. Zinc is a natural element, essential to life and abundantly found in the Earth's crust. Zinc and steel are 100 % recyclable, making galvanized steel safe for future generations. Galvanized steel offers an attractive natural finish that blends with its surroundings. But, if the natural metallic gray finish does not suit the project, the coating can be painted or powder coated for additional aesthetic appeal.
As the world continues to evolve, it's important to construct a better environment for the future. The natural finish of hot-dip galvanized steel transcends time with little environmental or economic impact, all while providing superior corrosion protection, durability, longevity, and beauty. Hot-dip galvanizing: protecting steel for generations, sustaining the environment, and maintaining your quality of life!
If you want to learn more, please visit our website Electroplating solutions.