Things To Consider When Purchasing A Plate Roll
Purchasing a plate roll can be a big decision
Purchasing a plate roll can be a big decision. There are two main things that you must consider when you are purchasing a plate roll.
These include knowing what materials you will be working with and how to effectively operate the machine.
If you take these into serious consideration, then you will find a plate roll that suits your personal needs and will last for a long time.
Carefully assessing the equipment you already have and then matching that to the information that you want, is the best way to determine what equipment is right for you. In fact, it is the key for manufacturers in the plate rolling industry.
If a company can get the best equipment, they will produce a better product and do it more effectively. This will give that company a greater competitive edge in the industry.
When you choose the right plate roll it will work well with the other machines and yield high quality results.
First, before purchasing a machine you must understand the properties of the material to be rolled. This means that before buying plate rolls you must determine what materials you work with the most.
A metal's temper and yield strength are the key components of any material. These components must be matched with the customer's application to correctly fit the specifications of the plate roller.
A metal's temper is defined as the hardness or strength of a particular metal. The yield strength of a material is defined as the stress at which a material begins to deform plastically.
Both the metals temper and the yield strength play a significant role in establishing which plate roll to purchase. Due to modern steel strength it requires more force to bend.
Countless varieties of steel abound in the manufacturing world today. As you research you will find that each of these different varieties of steel require different pressures to effectively roll.
Even though drawings call for a plate to be rolled down to the same dimensions, a tougher material will require a higher-pressure rolling machine. When the metal's temper is not taken into consideration, defects will occur.
The result of defects will be excessive scraps. Having excessive scraps can be costly for a company. especially if the problem of excessive scraps can be easily solved by understanding the different properties of metals.
The next major thing to consider when purchasing a plate roller is the operating parameters of the machine the plate roll will be connected to. This will guarantee that the machine and plate roll are given a manageable workload.
By understanding machine operation the functionality and lifespan of the plate roll will be maximized.
Quality rolling machines are usually cambered, or arched, at 50 percent of the full-rated value of the machine. Because of this, a 2 inch machine is cambered to roll a 1 inch plate at a nearly perfect edge. This type of machine produces a premium high quality product.
Disregarding the functionality of the machine can result in low quality product that the customer will not accept. If the product is not made right, there is no reason to have started making it in the first place. If this occurs, the company will actually lose money.
Problems most commonly arise when rollers attempt to push the upper limits of their plate roll. If a 5/8 inch plate is rolled through a 1 inch-rated machine, a small degree of barrel effect will commonly occur.
The barrel effect tends to cause extra tension on the machine and on the material. This may or may not be an acceptable margin for error depending on the ending result of the material.
When plate thickness approaches the upper end of a machine's rating, then severe defects and problems can result. Unless corrected with a shim, the material created will not be sellable.
On the other hand, when very thin material is rolled through a machine rated for a very thick plate, the finished product may come out tighter in the center than on the ends.
Time consuming shimming is the needed remedy to correct for this hourglass effect. Although you were able to fix the problem, it is much easier to have the right machine for the product in the first place.
By following these two simple steps you will be able to avoid issues with your plate roll and other machinery, produce an overall higher quality product, and actually be able to save money throughout the entire process.
by: Jack Landry
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