Blog von junhuamachinery

Operators often see cracks and damage in ladle shrouds, long nozzles, and refractory parts. This happens because of a few main reasons:
• Fast temperature changes can cause thermal shock and peeling.
• Mechanical stress comes from handling, hitting, or working forces.
• Hot slag and molten steel can wear down and get into the parts.
• Material problems like tiny holes or mistakes made during making.
• Issues with design, how things line up, or how they fit together.
Knowing these reasons helps teams stop corrosion, breaks across the part, and chemical damage. This helps ladle shrouds last longer.
Key Takeaways
• Quick temperature changes can cause thermal shock. This can crack ladle shrouds. Heating slowly and checking the temperature can stop this damage.
• Mechanical stress from moving and using parts can cause cracks. Storing parts carefully and handling them right helps lower this risk. Installing them the correct way also helps.
• Hot slag can wear down and get into refractory materials. This makes them weaker. Using stro...

A boat's electrical system starts with a battery that will supply the electricity for the boat. The system is usually 12 volt DC (direct current), but can be 6 volt, 12 volt or 24 volt depending on how many and what type of batteries the system is designed for. For this article, the system discussed is a 12 volt system.
A boat's wiring is a two wire system. One wire goes from the battery to the light or instrument to be used and a second wire returns to the battery from the light or instrument to complete the circuit. In a Direct Current system the electricity flows only in one direction. The electricity flows from the battery to the light and then back to the battery. Each item used will have its own two wires, one to get power to it, and one to return the electricity. This is a very simple explanation of how a boat is wired.
The batteries that that are used on a boat are of 3 basic types. They are a wet cell battery similar to the type used in a car, a gel cell battery and an AGM or Absorbed-glass mat battery. All of these types are rechargeable. The battery capaci...