How to Choose A Hydraulic Press and Its Production Process?
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How to Choose A Hydraulic Press and Its Production Process?

Hydraulic presses can be used for compaction, assembly, pressing, forming, embossing and stretching. Hydraulic presses can be used for compaction in the cosmetics industry, assembly in the automotive industry, molding of electronic products, and stamping in the home appliance industry.
Published: Apr 13, 2020
How to Choose A Hydraulic Press and Its Production Process?
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What is a hydraulic press?

Hydraulic presses use hydraulic cylinders to generate pressure. Inside the hydraulic press, there is a plate on which the sample is placed for sample preparation. This blog post will provide an overview of how hydraulic presses work and introduce the hydraulic presses provided by XRF Scientific.

How does hydraulic press work?

Hydraulic presses work according to the principles of Pascal's law, which states that when pressure is applied to a closed fluid, pressure changes will occur throughout the fluid. Inside the hydraulic press, there is a piston that acts as a pump, providing moderate mechanical force for a small portion of the sample. There is also a piston with a larger area, which generates a larger mechanical force.

What are the production process of hydraulic press?

Common types of hydraulic presses

There are various types of customized hydraulic presses on the market today. However, before deciding which type to buy, it is important to understand the difference between the function of each type of hydraulic press and its intended application. A wide range of industries uses customized hydraulic presses for various applications, some of which include compaction in the cosmetics industry, assembly in the automotive industry, molding of electronic products, and stamping in the home appliance industry.

C-frame hydraulic presses, also commonly called gap frame presses, are characterized by their unique frame style, resulting in a "C" shape around the backing plate. Hydraulic floor-to-ceiling C-frame presses provide powerful power while maintaining a small, compact footprint. C-frame hydraulic floor presses are usually best suited for applications requiring smaller bed sizes and lower tonnage.

Custom 4-column hydraulic presses, also commonly referred to as 4-column presses, can be designed to accommodate a variety of mold sizes, and are very suitable for parts that require high rigidity and precise bed-slide parallelism. Four-column hydraulic presses are advantageous because they are generally more economical than triangular arm guided presses and can enter the work area from four sides.

Straight edge presses or column presses are also called triangular guide presses. The pivot is a pressure bar assembly that guides the reciprocating movement of the plunger to maintain excellent verticality and parallelism throughout the stroke. The boom guide design is the preferred frame style for the most demanding applications.

Horizontal presses are ideal for rebar, shaft and plate straightening, and can also be equipped with a variety of tools to perform such as rebar, angle steel, and channel trimming, rail/structure contour and straightening, and many other tools for horizontal configuration and smooth long stroke hydraulic Power-critical applications. The horizontal press has a unique hydraulic system to prevent overload.

What to pay attention to when buying a hydraulic press?

Purchasing capital equipment is a complicated process because there are many factors to consider. Starting with frame construction, it is important to ensure that the manufacture of custom machines can withstand years of work. The key interlocking frames are more suitable for higher tonnages because they are more durable and can be used more durable. Custom hydraulic presses come in various sizes, each of which has a certain tonnage. Because hydraulic presses may be application-specific, it is important to discuss the intended application of each press to ensure that the machine is suitable for the job. Items to consider before purchasing include the correct tonnage capacity, tool size, and whether the process requires horizontal or uneven – center loading, because the type of loading may determine which style of printing machine should be purchased for a specific application. Considerations for other hydraulic press solutions may include:

For drawing applications, certain processes require a mat or fixture to hold the material under a certain pressure to control the speed at which the material is pulled into the mold.

Consider whether a custom hydraulic press mold is equipped with a nitrogen spring – if so, make sure that the hydraulic press can withstand the “rebound” force.

The supply of hydraulic machine parts makes sense indeed the press needs to close-the-frame parts or they will need to be specially customized. This is an important factor to consider because downtime will affect the productivity of the plant and ultimately the profitability of the enterprise.

Service availability plays a key role in the decision to purchase a customized hydraulic press solution. Hiring local technicians can help simplify the initial setup and help train operators and solve problems. Local service technicians can help eliminate harmful downtime in stores.

If automation will become part of the process, special considerations must be given to the functions that the system must have and how the product moves in the printing press.

When purchasing fixed equipment, please ask questions about the warranty and understand what types of services and repairs the sales company will provide, and how long the warranty will be valid.

Benefits of using a customized hydraulic press (relative to other methods) for production

There are many production methods available for metal forming. Hydraulic presses can be used for compaction, assembly, stamping, forming, embossing and stretching. Customized hydraulic presses can provide versatility in stroke length, mold space and pressure functions, while other production methods (such as mechanical presses) cannot.

Consistent pressure or force: The hydraulic press can provide full tonnage at any position on the stroke. On the other hand, mechanical presses require the operator to calculate the position where the part needs to be placed if the entire machine tonnage is required.

Ability to change the stroke length requirements of each part: The mechanical press needs to use the entire stroke each time, which can be a time-consuming process. When using a hydraulic press, the stroke length can be set to a partial stroke. When using progressive (moving) molds on mechanical presses, you must be more careful than when using hydraulic presses.

Free-fall system: The slider on the hydraulic press solution can "free-fall" during the approach, which allows the operator to increase the number of strokes per minute. During "free fall", the machine's slider will loosen, and gravity will slide it down to its predetermined position. By using gravity, operators can speed up production.

Foraging machinery that requires renewal, it is usually cheaper to rebuild or refurbish a hydraulic press than the cost of rebuilding a mechanical press.

The hydraulic press can be more customized and has the ability to handle various tonnages. Alternatively, mechanical presses are usually one size per ton. The industry that most often uses hydraulic presses.

Customizable hydraulic press solutions are dedicated mechanical parts. It is important to understand what product to manufacture, what force is required, the process involved in manufacturing the part, and the characteristics of the material. Many industries may use customized hydraulic presses in their production processes. Some examples include: The automotive industry may use hydraulic presses to assemble two or more parts together, such as bearings, shafts, gears or rear axle assemblies. Assembly applications can also be used in the medical, electronic or military industries. Compaction applications may include arms fuse assemblies, Teflon power supplies for sealing, fuel cell and battery compaction. The aerospace industry can use hydraulic presses for deep drawing processes. Deep drawing is a forming process that can be used to manufacture fire extinguishers, oil tanks, fan covers, and air ducts. Other industries that use customized hydraulic presses include household appliance manufacturers, enterprises in the agricultural industry, and energy storage.

Published by Apr 13, 2020 Source :fabtechexpo

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