October 28, 2021
Aircraft hydraulic fluid applications require special care
Brake fluid is a subtype of hydraulic fluid with high boiling point and low
freezing point. Aircraft hydraulic fluid applications require special care as
they are critical to flight safety. Keeping these fluids free from contamination
is the main concern.Hydraulic transmissions need a different grade of light
hydraulic fluid, and manually shifted transmissions use a heavier gear oil
similar to that for rear axles to resist heavy loads on the gear. Multi-grade
hydraulic fluid is designed to be free of heavy metals.Shell has launched a
multi-grade hydraulic fluid that will perform in extreme conditions called Shell
Tellus Oil STX. This blend is a zinc-free, ashless hydraulic fluid with high
shear stability, formulated with group II base oils with additive technology.The
best SAE
37° Flare hydraulic fluids offer a wide temperature range and high shear stability
and versatility.Bypassing contaminated filter elements is accomplished by using
a bypass line. Contaminated hydraulic fluid is delivered, but it will bypass and
avoid malfunctioning the axial piston. The quantity of hydraulic fluid which
flows through the filter element and/or the bypass line can be influenced via
the pressure switching valve and the indicating means. It is thus possible for
the pressure switching valve to be controlled by the pressure of the hydraulic
fluid. This occurs upstream of the filter element or by the difference in
pressure of the hydraulic fluid at the filter element. The hydraulic fluid which
bypasses the filter element by means of the bypass line does not get fed into
the closed circuit.An electrical evaluating and indicating unit can be to reduce
the operating rate of the delivery pump. Temperature-sensing devices can be used
to indicate when the temperature drops below a certain minimum value. This
activates the device for reducing the quantity of hydraulic fluid which flows to
the filter element and/or through the bypass line within the hydraulic circuit.
These measures help avoid excessively low temperatures of the hydraulic
fluid.The hydraulic fluid path works in a serial fashion, fluid flows via a
screen, through an intake line, and into the filling pump. The filter element
thus receives unfiltered hydraulic fluid which then leaves the via the discharge
channel and passes to the low-pressure side of the filling circuit. The weight
of the hydraulic fluid alone may apply sufficient pressure to keep the valve
open, even with the loss of normal surface pressure.SonomaTesting Lubricants
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July 19, 2021
It gives several advantages
Vicla sheet metal machines included also a specific range of products for cut
the sheet metalGSMVICLA oleodynamic guillotine shears are characterized by high
precision and quality in cutting in any condition and processing any kind of
material.The heavy-duty frame of the machine and the double metal sheet that
supports the working area assure absolute rigidity, which means functionality
and reliability.
The quality of VICLA guillotine shears is proved by oleodynamic,
electrical and mechanical high quality components.Despite already excellent
performance is guaranteed with its standard version, it can also be enhanced by
installing alternative components and accessories to achieve exemplary results
even in extreme conditions.The ESA S525 CN makes this shear versatile and its
usage simpler by optimizing working processes and timing.STANDARDABB motor,
VOITH pump and HOERBIGER hydraulic systemhigh quality electric panelESA
numerical controlCLOVICLA hydraulic swing beam shears can be manufactured
depending on the length required from 2500 mm to 6000 mm, maintaining a
monolithic structure and an easy usage.
The PRG 911 programmer, also called
positioncontrol, allows to set cut parameters.The frame is heavy-duty as well as
compact and it assures perfect cuts. It is made of high quality steel and it has
undergone systematic mechanical processes.• Electric welding of high precision•
Heat treatment to guarantee stress relief• Usage of high-tech boring machines
for extreme precision partsVICLA chooses the best products to guarantee
long-lasting and high-tech machines.
All the components come from the leading
companies in the market.ESA numerical control (NC) or position control (PRG)•
Safety photocells• Silent and reliable internal gear pump (GSM)• Combination of
asynchronous motor and high precision backgauge that permits fast movements of
the axes• Front metrical arms• Manual or automatic blade clearance• Blades for
stainless steel• Robust backgauge on linear guides moved by ball screwsStrong
structure frame, extremely precise backgauge and excellent quality blades
guarantee a metal fabricating process that is precise, rapid and constantly
reliable throughout time.
VICLA shears are provided with a backgauge
characterized by high stiffness frame in order to guarantee the best
repetitiveness and high precision in axes positioning.• Backgauge on linear
guides moved by screw balls• Possibility to set different configurationsVICLA
shears can be customized in order to meet any Costumer's specific requests. By
means of special components and tools it is possible to improve standard
performances.•
ESA S525 NC• Automatic blade clearance• Wire on the cutting
light• Pneumatic or hydraulic sheet metal support• Increased front metrical
arms•
China
Threads Reducers 1000 mm backgaugeThe quality of the working area is
strictly related to the level of ergonomics that depends on:1.Safety (which will
be tackled later on);2.Adaptability. For this aim VICLA customizes the working
area according to the Costumers' specific needs;3.Usability.
It gives several
advantages: enhancement of the authorized personnel's efficiency as well as
safety, and reduction of mistakes, timing and costs for the training;4.Comfort.•
The controls area can be installed on both the left and right side of the
machine• Possibility to install lights in the front and back area of the
machineProgramming is user-friendly and intuitive.PRG 911 to visualize the
position of the backgauge or ESA S525 to automatically manage all the
functionalities of the machine.
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