AAK Hydraulic Flow Control Valve Unique Processing Skills

Peter is from Australia. One of his old customers wanted to purchase a special
hydraulic flow control valve. Peter realized that the valve hole of this
hydraulic flow control valve has high accuracy and is difficult to process. If
the surface roughness and cylindricity error cannot be well controlled, it is
easy to cause the valve spool to be stuck. As expected, he contacted more than
20 hydraulic flow control valve manufacturers in 3 days, but none of them was
confident. The customer has urged the quotation twice, and now even the
manufacturer can't be determined. Peter was very worried.

Peter wanted to find more hydraulic flow control valve manufacturers in
different countries online this time. He accidentally found AAK hydraulic
valves and stayed on AAK website for about 20 minutes. With the attitude of
trying, he sent me an email. After communication, we learned that his customer
was pushing urgently and he needed AAK to quote asap. I didn't make an offer
the next day. Maybe Peter thought AAK had surrendered. Later, I told him that
most hydraulic valve manufacturers still use traditional processing methods to
process the valve hole of this hydraulic flow control valve. According to the
requirements of the drawing parameters, they also know that the surface
roughness is a threshold. For example, the abrasive particles are easy to be
embedded in the workpiece surface, and the cutting is not easy to be separated
from the grinding oil, resulting in poor cleanliness of the grinding oil. All
these affect the surface roughness.

AAK realized this processing pain point as early as 4 years ago and adopted
rolling technology to replace the traditional cutting method. I suggested that
he communicate with the customer and let AAK directly test the sample. If the
sample is successful, it will be quoted. If the sample fails, AAK will bear the
development cost. On the 3rd day, Peter accepted my suggestion. After 35 days,
12 samples of hydraulic flow valves were sent out. About 2 weeks later, Peter
said that his client confirmed AAK's hydraulic flow control valve. At this
time, Peter realized the advantages of AAK and thanked me very much, which
helped him face his old customer.

Rolling technology and cutting processing are completely 2 different processing
methods. AAK tried, solidified and mass produced it 4 years ago. Roll the metal
surface with rollers, flatten the convex part of the surface, and bulge the
concave part, and then process it into a smooth mirror like surface. The most
important thing here is the rolling details. The surface roughness of the valve
hole processed by the old experienced technicians will be increased to nearly
1% compared with the surface roughness after grinding, so that RA is 0.10 ~
0.15, and the cylindricity error is controlled within 0.003. After work surface
hardening, the wear resistance is improved, and the fatigue strength can be
increased by 30%. There are many advantages, but there are not many
manufacturers of hydraulic flow valves using this process, and even fewer can
control the details.

3 days later, Peter sent the PO for the hydraulic flow control valve. He told
me that the stone hanging in his heart finally fell, and the meal was more
delicious. I told him that you only need time to receive the goods. Go to the
bar when you need to, and leave the rest to AAK.

AAK hydraulic flow control valve, has unique skills with special requirements.
You can also have a small try.

https://www.aakindustry.com/info-detai , l/hydraulic-flow-control-valves-aak348

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