Some Applications of the hydraulic press Are forging, slimming glass, making cosmetic powders and forming tablets in the medical industry.
A hydraulic press is a device that uses a hydraulic cylinder to generate a comprehensive force. This instrument has multiple uses. In addition to the above, one of the main is to transform different types of metal objects into metal sheets.
A hydraulic press can compress a material to its full magnitude and requires less space than a mechanical press. The hydraulic presses can be automatic or manual, depending on the industry where they are used.
There are many types of hydraulic presses. The arbor press is a press that is operated manually for lighter tasks such as stamping, punching or flattening metal. The laminated press uses heat to laminate certificates, identification documents or even book covers.
There are also C-shaped presses that have specific applications for drawing, straightening and assembling work. On the other hand, the pneumatic press uses less force and is common for uses in automobiles or systems of brakes of the airplanes. These industrial presses need an operator to assemble, draw and drill.
The inventor of the hydraulic press was Joseph Bramah, so it is also known as the Bramah Press.
10 applications of the hydraulic press
1- Multiprensa
The hydraulic multipress can literally be used for thousands of applications. From the stamping of equipment, to assemble one part to another or the construction of various items such as filters and compact powders.
It is also used to trim excess metal parts as in the case of a transmission box or to produce controlled portions of fish, chicken or other foods.
2- Compression presses
Understanding hydraulic presses are used as the core of any automotive crushing system. In this process, a hydraulic motor applies a large pressure on the fluids inside the cylinders.
This pressure of the fluid causes the plates to rise and then with a great force, the plate is propelled on the car, crushing it.
3- Pneumatic Presses
These presses are the most basic ones used in industries, because in this system the air is compressed to create a pressure that produces movement. The advantage of mechanical presses is that operations are performed more quickly.
Its disadvantage on the other hand is that it is not able to create pressures too high, as other hydraulic presses do. They are typically used in automotive and aircraft brake systems.
The industrial applications of pneumatic presses include assembling, drawing, drilling, among others. In order to function they need an operator who must handle additional safety accessories such as electrical safety systems.
4- Cosmetic industry
Hydraulic presses can be used to press cosmetic materials and make them into makeup such as eye shadows, flushing cosmetic powders and others. The pneumatic presses are the most appropriate for this type of work, since they produce very fine powders and of excellent quality.
5- Medical field
Hydraulic presses are also used in the medical field for the formation of pills and tablets. These presses can compact granular or powdered ingredients and convert them into tablets for the pharmaceutical industry, chemical plants, hospitals, research institutions and laboratories.
They are lightweight, small in size and feature a variety of functions. An average press can get to form more than 5000 tablets per hour.
6- Creation of credit cards
With a vacuum press that is used to make sheets, credit cards can be made, which are formed from several layers of superimposed plastic. A film may also be applied to the plastic layers.
7- Creating Swords
The presses are used to make swords, since they allow to give flat form to the steel in the rough and to obtain the hardness but at the same time the lightness that they need this type of arms that at present are used more for exhibition and collection.
8- To prepare chocolate powder
When the cocoa beans are processed, a liquid known as cocoa liquor is produced. If you want to keep only the cocoa, without adding sugar, preservatives or fats, the liquid is squeezed in a hydraulic press.
After this stage, it is again processed for the formation of the cocoa powder, as we know it and without added fats.
9- Forging industry
Large-ton hydraulic presses are used for forging and cutting metals at large scales.
Currently, most forging processes are performed with hydraulic presses, which allow an adequate distribution of the pressure in the material, which reduces the amount of elements used and improves production by increasing the speed in the manufacture.
10- Creation of ceramics
Hydraulic presses can be used for the manufacture of glass products, metal connectors, Teflon materials, magnetic elements and clay products which require the application of a considerable amount of force to form a target from powdered or granular substances.
Principles of operation of the hydraulic press
The hydraulic press is based on the Principle of Pascal To operate, which indicates that the pressure through a closed system is constant. One part of the system is a piston that behaves like a pump, with a moderate mechanical force acting on a small transverse area.
The other part is a piston with a larger area that generates a corresponding mechanical force. Only a small diameter pipe - which withstands the pressure better - is needed if the pump is separated from the cylinder of the press.
According to the Pascal Principle, the pressure in a confined fluid is transmitted without decrease and acts with equal force in equal areas, at 90 degrees from the walls of the container. This causes a difference in the length of the displacement, which is proportional to the radius of the areas of the piston heads.
A fluid such as an oil is displaced when each piston is pressed inward. Since the fluid can not be compressed, the volume that small piston moves is equal to the volume displaced by the larger piston.
References
- What is a hydraulic press used for? Retrieved from reference.com.
- Hydraulic press. Retrieved from wikipedia.org.
- Applications for hydraulic presses (appliances, automotive, stamping and more)
- The working and use of hydraulic press. Recovered from hydraulicmania.com.
- Handbook on Cosmetics (Processes, Formula with Testing Methods) S.K. Singh. Retrieved from books.google.cl.
- Types of hydraulic presses. Retrieved from pressmater-hydraulic-presses.com.
- Hydraulic forging presses (MH Series) Retrieved from shulergroup.com.