LianJiang Metals Company

  Aluminum castings  need to be made in a way that prevents porosity. In the process of production, it is necessary to take effective measures to minimize the moisture of the raw material. In the process of aluminum casting, it is necessary to choose the casting process reasonably and strengthen the melting quality management effectively.   Aluminum casting pinhole defects Under production conditions, aluminum alloy castings will form tiny cavities when solidifying, called pinholes. Pinholes are usually distributed throughout the section, especially in the thick part of the casting where the solidification speed is slow. Pinholes reduce the actual force area of the component and may become a source of cracking, and destroy the continuity of the material, reducing the strength and plasticity of the casting, at the same time, pinholes also affect the corrosion resistance and anodic oxidation properties. Therefore, in the aluminum alloy castings, especially for the aerospace industry, alu

  Aluminum castings  are often seen as having a range of advantages. The versatility of aluminum allows it to be used to produce a wide range of products and components.   The Advantages of Aluminum for Metal Casting The high malleability of aluminum makes it possible to produce aluminum castings that are near net shape (NNS). Manufacturers can forge complex castings with high dimensional accuracy in a wide range of geometric shapes. Aluminum castings are much lighter than castings made from other metals. Despite their lightweight, the alloying process ensures that an aluminum casting will remain hard and retain a good strength to weight ratio. Many aluminum alloys are stronger than steel. In comparison to any other alloy, aluminum alloy castings can withstand the highest operating temperatures. Aluminum dissipates heat quickly, which increases safety and speeds up production times. Castings made using aluminum alloys are particularly resistant to corrosion. They provide excellent shie

  When it comes to restoring an old cast iron fireplace, there are a number of obstacles you might find in your way. From rust and old paint to cracks and broken parts, you’ll need to make sure you clean and care for it properly to ensure your restoration goes smoothly.   So, where do you start? We’ve put together a complete guide to restoring a cast iron fireplace, with tips on how to address each issue you might come across.   Read on to find out more!   How to Restore a Cast Iron Fireplace To restore a cast iron fireplace, you will need to follow these steps:   Clean away any rust on the surface Strip away old layers of paint Repair any cracks by professional welding Re-paint or polish as desired   How to clean a rusty cast iron fireplace Cast iron fireplaces  have one enemy that you always need to be on guard for – rust!   Rust is one of the biggest concerns when it comes to restoring a cast iron fireplace. If any moisture comes into contact with the metal surface, unsightly rust c