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Posts Tagged ‘bronze’

can’t remember if it was brass or bronze we were casting into a 1 off mold (loss wax), took about an hour for the metal to melt and about 4 hours for the mold to cool

A video how-to: how to cast a bronze memorial plaque

Changing Metal Properties With Heat Treatment

Throughout history people have been creating things from different metals. Presumably the discovery of metal was an accident and probably caused inadvertently when a campfire burnt away some low melting point metal bearing ore and left the bewildered ancient with a crude metal lump.

Most likely the first such metal would have been tin as this has the lowest melting point by far of all other common metals. At two hundred and thirty two degrees centigrade the core of the fire would not have to be particularly hot to extract tin unlike iron which needs one thousand five hundred and thirty degrees to melt.

The melting point of metals vary a great amount and as the discovery of tin extraction became more and more understood and easier to achieve, the ancients of Mesopotamia and at the same time China, began looking for other metals. Tin was a useful metal but far too soft to create anything much more than plates, pots and ornaments. The next big step was the discovery of copper with tin deposits and this alloy we know of as bronze.

With a melting point of just under one thousand degrees centigrade, bronze could be fashioned into a much stronger finished product. For the first time metal swords and other weapons could be made as well as intricate jewellery mounted with precious stones.

Today bronze is still a valued alloy. With the addition of less than one per cent phosphor, the alloy can be easy to cast with an exceptionally smooth finish. This tough alloy known as phosphor bronze has a very low coefficient of friction making it ideal and nearly always the preferred metal of ships propellers. It has the additional property of not sparking which makes it ideal for electrical contacts. Screws made of phosphor bronze are used whenever there is the threat of electrical shorting and water.

Any metal can be heated to change its properties and every metal has some unique uses. Heat treatment of steel along with quick but not harsh cooling can toughen the original product. During heating magnetic alignments can be changed and this will also change the properties of the original.

Heat treatment is used to add subsidiary metals creating alloys for very specific uses. There are many types of aluminium alloys for specific purposes and NASA and European as well as Russian space agencies all use the same particular Aluminium alloy for their space craft.

Over thousands of years men have been making things out of pure metals and alloys. The values of all metals can change with the discovery of new uses. For example, when catalytic converters were first discovered in the late 1980s the catalyst used in the exhaust system to convert carbon monoxide into harmless air and water was a mix of palladium and rhodium. Prices of these two metals shot up in value and later when more cars were being produced globally with diesel engines, palladium dropped heavily as Platinum took over.

 

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Lost & Foundry pouring bronze medallions for the centenial trail in Spokane, Wa.

Phosphorus copper shot added to increase fluidity.

Learn more at www.foundry101.com

Sand casting is easy and fun, we have been teaching metal casting & sand casting to kids and adults for almost 10 years now. Check us out!

Showcasing Different Types of Foundry Castings, Stainless Steel, Ductile Iron & Gray Iron Castings

Showcasing Different Types of Foundry Castings, Stainless Steel, Ductile Iron & Gray Iron Castings

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Home Page > Business > Industrial > Showcasing Different Types of Foundry Castings, Stainless Steel, Ductile Iron & Gray Iron Castings

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Showcasing Different Types of Foundry Castings, Stainless Steel, Ductile Iron & Gray Iron Castings

By: Rich Milton
Posted: May 25, 2011

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The International Industrial Trade Show (IITS), a virtual expo showcasing suppliers of various machines, tools and equipment for construction, engineering and manufacturing markets announced Wednesday the debut of its Castings Manufacturers Directory designed to help companies select the ideal casting to meet their needs. ArriveNEWS.com, an international B-to-B news aggregator and organizer of the online exhibition said the types of castings offered on the site is suitable for the small and large production of machine tools & components, heavy equipment parts, telecommunications, electronic & electrical, agricultural, computing, industrial processing systems, plastic injection molding, railroad, automotive, rubber & plastic manufacturing, aerospace/aircraft, military, general machinery, gears, valves, motion control products, power transmission equipment, government, consumer goods and other applications.

Juan Torres, spokesman for ArriveNEWS and the virtual trade show (IITS) said the Castings Manufacturers and foundries showcased on the site work with a large variety of metals and plastics such as aluminum, stainless steel, carbon steel, cast iron, ductile iron, brass, nickel alloy, aluminum die, bronze, zinc, titanium, non ferrous alloy, carbides, gray iron, high grade aluminum & bronze alloys as well as plastic materials. According to Torres, the types of castings offered include sand casting, investment, centrifugal, precision, lost wax, foundry castings, permanent mold, precision investment, steel iron as well as specialized abrasion and wear resistant castings in large and small loose or production patterns, including 3DP, MMJ, SLS and SLA.

The featured foundries and custom manufacturers showcased on IITS are capable of producing small, medium and extra large castings for a number of industries,” said Torres. He concluded, “Recent exhibitors added to the online exposition, in addition to existing offerings, include nearly 50 suppliers of shell molding, no bake mold, manganese, investment, aluminum, Ni hard, zinc, Meehanite, sand and investment castings primarily from the United States and China, but not limited to such markets.” Torres continued, “ArriveNEWS is committed to being the premier source for all kinds of castings for a broad range of industries custom made from virtually every available material offered in low, medium and high production quantities.”

About ArriveNEWS

ArriveNEWS.com is an online industrial expo organizer and producer of the International Industrial Trade Show (IITS 2010). The site utilizes a simple platform to showcase its exhibitors by using online videos to demonstrate a wide range of innovative industrial equipment, machine tools and technology offered by manufacturers across the globe with emphasis on products made in the USA at http://www.arrivenews.com/iits.html

Source: http://www.articlesbase.com/industrial-articles/showcasing-different-types-of-foundry-castings-stainless-steel-ductile-iron-gray-iron-castings-4815239.html

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Article Tags:
bronze castings, steel castings, iron castings, investment castings, brass castings, aluminum castings

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Lost & Foundry pouring bronze medallions for the centenial trail in Spokane, Wa.

Phosphorus copper shot added to increase fluidity.

Sand casting is easy and fun, we have been teaching metal casting & sand casting to kids and adults for almost 10 years now. Check us out!

yes i what to do a scupture, i what to have the formula for sand casting, to make the sand hard? is it just water?do i have to put sameting more, what tipe of sand?

Lost & Foundry pouring bronze medallions for the centenial trail in Spokane, Wa. Phosphorus copper shot added to increase fluidity. Learn more at www.foundry101.com Sand casting is easy and fun, we have been teaching metal casting & sand casting to kids and adults for almost 10 years now. Check us out!

learning how to do bronze and silver casting!

Bronze casting is a sculpting strategy that originated in the ancient times. The Greeks and Chinese mastered this process, which was later invigorated in the Renaissance period and is widely practiced in modern times. Very little traditional bronze Greek sculpture survived ; history records attribute this to the indisputable fact that the metal was later softened down for other reasons. Amid the few existing examples of an enduring bronze work are 2 stunning successes : The Zeus of Artemisium and The Delphic Charioteer.

Come visit us right here for more Metal Casting Info and get two Metal Casting Ebooks Aluminum Bronze Casting.
http://www.metalcastingzone.com/

Bronze may be cast solid, hammered, carved, or made in incised forms. By itself, bronze can bear exposure to the natural elements better than stone and other materials. This is the explanation for it being extensively used and preferred for the creation of a large range of outside public sculpture. Bronze is also ideal for casting art works. If softened in correct conditions, it flows into all of the crevices of a mold, perfectly reproducing every feature of the most dexterously created model. It is delicate and malleable underneath the sculptor’s tool.

Art lovers all over the world search for superior bronze sculptures to expand private collections. Bronze artwork is highly subjective, as a single bronze sculpture may appeal to one individual and not to another. However, the supremacy of bronze sculptures may be assessed according to their configuration and the molding process employed to create the artwork.

Wildlife, important events and time period pieces can all be represented in bronze sculptures. These artifacts can be acquired from bronze sculpture manufacturers. If one has an interest in unique work, opting for a custom-built bronze sculpture is an alternative.

While buying bronze sculpture, a buyer should be conscious of the provision of fake statues. In the 19th and 20 th century, at least four thousand fake bronze castings of sculpture have gained access into the market and are still being displayed at many art exhibitions. Hence if one comes to a decision to buy a bronze sculpture, one must study the sculpture thoroughly or enroll the aid of a professional in assessing the originality of the piece.

Come visit us right here for more Metal Casting Info and get two Metal Casting Ebooks Aluminum Bronze Casting.
http://www.metalcastingzone.com/