Corrosion

The addition of tin also improves the corrosion resistance. Iron makes the brass harder and makes the internal grain structure smaller to make proper shape of brass. Arsenic and Antimony are sometimes added to brasses that contain more than 20% zinc to inhibit corrosion. Other materials like manganese, silicon and phosphorus in a very small amount. Manufacturing Process Manufacturing process of brass…

pipes with lead solder. This was not a problem when Flint used Detroit’s drinking water because Detroit added corrosion control chemicals such as a phosphate corrosion inhibitor to keep the lead out of the water that runs through the pipes. The phosphate would oxidize before the metal in the pipes would, galvanize and create a passivation layer, protecting the inside of the pipes from corrosion. When the Flint water treatment plant began treating the water from the Flint River, it opted out of…

All metal manufacturing includes a solidification process. The metal is either atomised to a powder, or it is cast. There is several casting methods used today. Many of the methods use the mould only once, for example sand mould casting, the lost-wax method and precision casting. For larger quantities of liquid metal, there are basically two methods: ingot casting and continuous casting. Ingot casting normally uses a permanent mould made by cast iron isolated by ceramic material. There are…

The material of choice for gravestones today is generally granite, since it is durable and comes in a variety of crystalline textures and colors. Bronze gravestones are also worth mentioning here though, as they are also a popular choice. Whatever the choice of material, gravestone memorials need regular tending in order to maximize their durability and to keep inscriptions as legible as possible. It is also a nice way to show that you are still thinking about the person who has passed away.…

1. What is the difference between calcium carbonate and hydroxyapatite? Calcium carbonate is more soluble than hydroxyapatite. 2. What are the pitfalls of using CHA in bone graft procedures? CHA is fragile an brittle and it should only be used temporarily 3. What is CHACC and what potentially makes it better than CHA? CHACC is Coralline Hydroxyapatite/calcium carbonate. CHACC is better than CHA because it can keep a porous structure as well s biocompatibility making it a even better…

Who said garage doors couldn't be a style statement? Authentic custom wood garage doors are a fantastic way to add an elegant and uniquely personal touch to your garage, and no one does it better than Overhead Garage Door, LLC. Our wood garage doors use real, premium quality wood and are built from the ground up by expert craftsmen and designers to match your particular vision. While steel or aluminum doors are often limited to a few basic designs, wood doors can be made in nearly any style…

The purpose of this report and lab was to assist in visualizing the structure of infinitesimally small objects and how they fit together. Normal object fit together similarly to microscopic atoms and experiment 2 exploits this to help understand structure property relationships. The knowledge gained here directly applies to the world as applications of the materials becomes apparent as the properties are explored. Copper There are a plethora of modern technological uses of copper. It can be…

Moreover, Teflon can used in chemical manufactures such as hoses that can endure very high erosive substance and sometimes, it need to move at very high of levels heat. Teflon have coating in the inner pipe and it used in erosion resistance and flexibility. Every hose will break over time, but those hose that have Teflon coating in the inside can be broken slowly than any other hoses that made of other materials because those materials do not have the same feature with Teflon. Also, Teflon…

Making The Case For Metal Roofing: The Pros Outweigh The Cons By A Long Shot What your roof is made of makes a big difference in how your home takes care of you and your family. For the following reasons, metal is, more often than not, the best choice for the job. The Pros Of Metal Roofing Longevity A metal roof is likely to remain functional and intact for as long as the home it covers does, resisting weather, rot, infestations and water all the while. According to one industry study, your…

Introduction: Energy loss is a problem that engineers face. It is caused by friction in pipes which is also called the friction head loss and that happens because of viscosity and pipe wall friction. Energy loss also happens due to local losses which occur at valves and sharp bends. Local losses are also known as minor losses because their effect is normally small in long pipelines. To understand the relationship between Reynold’s number and friction factor, the pipe friction experiment has been…