Plate Girder Bridge
The World of Metal
There are lots of items that get used every day that we tend to overlook. You need to look closer at the steel construction of buildings like churches, schools, and fire departments. The huge steel girders blend into the background, so they are quite easy to miss.
Metal surrounds us in our daily lives. Metal comes in many forms - it can be made into cars, trucks, homes, or businesses. It can also include smaller scale works of art created by local artisans in their own workshops, using only a minimal number of tools. Metal fabrication is part of everyone's lives. Metals, such as steel and iron, are very strong and considerably more stable than wood for building. This article will be quite helpful for those who do not know much about metal. In it we will go over the main points of how metal is fabricated and also go over the process involved in fabrication.
What does it mean to fabricate metal?
Summarily, the practice of transforming stock metal forms into a desired product is called metal fabrication. There is the same basic kind of fabrication needed for a metal salad bowl or a multi-ton bridge girder. Metal fabrication includes a range of processes including metal cutting, forming, welding, bending, and finishing.
How many different metal fabrication methods are available?
The three most common types of metal fabrication are structural, commercial, and industrial. Structural fabrication involves the manufacturing of components for buildings and bridges. The construction of processing and support equipment for industry is known as industrial fabrication. Most of metal items bought by consumers are produced by commercial metal fabrication.
How exactly does the metal get cut?
Metal can be cut in two distinct ways. It can be cut by pushing sharp blades on the metal until it breaks or material can be taken out to finish the cut. Shearing directs a large amount of pressure onto specific areas to cause the metal to fracture and separate. The process never varies and is like using a giant pair of scissors. There are different ways to remove metal, such as abrasives, electric arc, laser beams, and torches. Cutting torches and abrasive wheels are most common in the fabrication industry as they can be moved around and used with ease. Stationary equipment like plasma tables, laser cutters, and water jet beds are much less common in the industry, but can produce brilliant results with exacting specifications.
In order to obtain the skills needed for metal fabrication, where would you go?
Certified learning centers or on the job training are the two most common types of metal fabrication instruction. In either situation, a person is expected to show basic knowledge of the main skills before being allowed to work in the fabrication business. Metal working skills are certified and regulated by several professional bodies within the industry. The American Welding Society, also known as AWS, governs welding skills. The American Institute of Steel Construction, AISC, describes the processes and skills needed for steel construction. API, otherwise known as the American Petroleum Institute, supervises the methods that are used by gas and oil pipeline businesses.
Like many fields, metal fabrication starts with design, the initial concept of the final product. When needed, engineers will check that the materials used are of the strength that is required. A fabrication facility is provided with plans and an order is made for the necessary materials. Dependent on the specific design, materials may be shaped, cut, and/or welded in order to form the requested product. Before the piece can leave the premises, a thorough inspection is carried out to make certain the final product will carry out the job requirements adequately.
Now you know everything you need to know about metal working.
About the Author
Michael Headington shops exclusively at hellerson.com when he needs new metal fabrication equipment, angle rolls, or plate rolls for his shop. With their high quality construction and easy controls, Michael knows that each Heller plate shear and brake press will perform well and outlast the competition.
Plate Girder Bridge
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 Walthers Cornerstone Through Plate Girder Bridge N scale 933 3820  US $25.98
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 N Scale Through Plate Girder Bridge Kit Walthers 933 3820 US $21.98
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 N Walthers Cornerstone 933 3820 Through Track Plate Girder Bridge US $20.78
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 Atlas 2081 Through Plate Girder Bridge Double Track N Scale Code 55 US $19.95
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 Kato USA Inc N 186mm 7 5 16 Double Plate Girder Bridge Black US $18.90
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 KATO N 20456 Unitrack Double Plate Girder Bridge Green US $16.79
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 New Kato 20 455 N DBL PLATE GIRDER BRIDGE BLUE US $15.74
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 Kato 20 455 N Scale Double Track Plate Girder Bridge Blue New US $14.89
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 Kato 20 457 N Scale Double Track Plate Girder Bridge Gray New US $14.89
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 ATL2082 N Code 55 Through Plate Track Girder Bridge Add US $14.63
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 Atlas 2080 N C55 Plate Girder Bridge Kit US $14.29
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 Atlas Model Railroad N Code 80 Plate Girder Bridge SP US $13.28
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Yard Ramps
Yard ramps are loading dock ramps that allow forklifts to enter shipping containers or trucks in facilities that lack elevated loading docks, or they allow forklifts to move from an elevated dock onto the ground. Pneumatic wheels on the ramps allow them to be moved into place by fork trucks, and hydraulic pumps that are built into the units allow them to be positioned at the precise height of a truck trailer bed, rail car, or loading dock.
Both dock to ground yard ramps and ground to truck yard ramps are made with an all steel welded construction and reinforced by heavy duty steel side girders to give them maximum load bearing capacity. Weight capacities range from 16,000 to 60,000 pounds, with a number of length and width sizes available. Serrated grating provides excellent traction and prevents buildup of water, snow, oil, grease and miscellaneous debris. The lower end approach plate provides maximum support and smooth transition onto the ramp grating surface. Deep side members prevent forklift runoff and reinforce load capacity.
Both dock to ground yard ramps and ground to truck yard ramps are made with an all steel welded construction and reinforced by heavy duty steel side girders to give them maximum load bearing capacity.Yard ramps are critical pieces of loading dock equipment in any warehouse or factory that lacks an elevated loading dock. They allow work crews to bridge the gap between the building and the trailer and quickly move supplies off the truck by forklifts. This is much safer and cost effective than unloading and loading containers by hand. In other instances, however, the reverse may be true. A building with a large outdoor stockyard may require a forklift to move from the loading dock onto the ground to either retrieve or organize supplies outdoors. This is common in shipyards and rail yards, and it requires a dock to ground ramp that will allow vehicles to safely move from the dock to the yard.
On construction sites, yard ramps are often used in conjunction with steel loading platforms, which can be connected together to create loading dock areas that service multiple trucks at once. The size of the ramp used depends upon a number of factors relative to the weight of the heaviest forklift and the heaviest load being moved along the ramp. Easy Rack recommends choosing a unit that is three times the rated capacity of the lift truck it supports. Rail yards should use a 36' unit that includes a level off.
A six-foot level off at the end of the yard ramp adds maneuverability for forklifts. It allows forklifts easier turning access into railcars, and it allows them to handle pallets next to the door openings. The 36' ramp is also the most popular unit wherever end-loading is required. When deciding on the width of the yard ramp to use, it should always be 15" wider than the widest equipment moved along its surface.
For multiple shifts and facilities that are moving a wide range of equipment and materials, yard ramps may need to be further customized. Optional features such as safety chains, ramp clamps, and tow bars offer a number of specific benefits ideal for different loading and material handling environments. Talk to a material handling specialist about these options and how they can benefit your operation and process flow.
About the Author
Easy Rack
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