2016年6月27日星期一

Safety operation rules for hydraulic press

Safety operation rules for hydraulic press
Hydraulic machine maintenance and safety operation procedures
Hydraulic oil, less than 20 degrees when the N32 / GB3141 is higher than 30 degrees, available N46 / GB3141.
Working oil recommended by the No. 32 and No. 46 antiwear hydraulic oil, use oil temperature 15 ~ 60 degrees.

2 after the oil industry is strictly filtered to join the fuel tank.
3 working oil is changed every year, and the first time should not be more than three months;
4 slide should always note lubricating oil, the appearance of the column should always keep clean, every time before work should be injected with oil.
5 under the nominal pressure 500T concentrated load maximum allowable eccentric 40mm. Eccentric too much easy to cause injury or other adverse phenomena.
6 check once every six months to check the pressure gauge;
7 more than a long period of time, the machine should be cleaned and coated with anti rust oil.
Safety operation procedures
1, do not understand the performance of the machine structure or operating procedures should not be allowed to start the machine;
2, the machine in the process of work, should not be carried out to repair and adjust the mold;
3, when the machine was found serious leakage or other abnormalities (such as action not dependable, noise, vibration, etc.) should stop analysis reason, try to rule out, not in spite of put into production.
4, shall not overload or exceed the maximum eccentric distance to use:
5, is strictly prohibited to exceed the maximum stroke of the slider, the mold is closed to a minimum height of not less than 600mm.
6, electrical equipment grounding must be firm and reliable:
7, the end of the day: the slider to the lowest position

2016年6月14日星期二

The Working Of Hydraulic Press

The concept of the hydraulic press is based on Pascal's theory, which states that when pressure is applied on fluids in an enclosed system, the pressure throughout the system always remains constant. In simple words, a hydraulic press is a machine that makes use of the pressure exerted on the fluids to crush something.
Joseph Bramah invented the hydraulic press, hence it is also known as the Bramah Press.

How the Hydraulic Press works

Since the hydraulic press works on the basis of Pascal's Law, its working is similar to the one of the hydraulic system. A hydraulic press consists of basic components used in a hydraulic system that includes the cylinder, pistons, the hydraulic pipes, etc.The working of this press is very simple. The system comprises of two cylinders, the fluid (usually oil) is poured in the cylinder having a small diameter. This cylinder is known as the slave cylinder.
The piston in this cylinder is pushed so that it compresses the fluid in it that flows through a pipe into the larger cylinder. The larger cylinder is known as the master cylinder. The pressure is exerted on the larger cylinder and the piston in the master cylinder pushes the fluid back to the original cylinder.

The force applied on the fluids by the smaller cylinder results in a larger force when pushed in the master cylinder. The hydraulic press is mostly used for industrial purposes where a large pressure is required for compressing metals into thin sheets. An industrial hydraulic press uses the material to be worked upon along with the help of the press plates to crush or punch the material into a thin sheet.

2016年6月12日星期日

What does daylight of a hydraulic press machine mean?

When talking about hydraulic press machines, daylight means that there is a gap between the top and the bottom of the press when the top and bottom come together. This should not happen to ensure that proper pressure is achieved.