Quality
Waterjet Newsletter – 12/09/2008
Noise Characteristics of Abrasive Waterjets Brenner et al* did an experimental
study of the noise characteristics of abrasive waterjets
in various conditions. Tests were done with a pump capable of 250 Mpa pressure and 25 l/min flow rate. Quartz sand was used
as abrasive. Noise characteristic measurements were done at the operator’s
position by using a German made noise gage RFT-00.023. The measurement
results are summarized in the following table.
where the admissible data were
from “Noise Characteristics Standards for Machines PTM 12.44.022-78) and the
operation modes were as follows: l Mode 1:
Jet in free air (100 Mpa pressure) l Mode 2:
Jet impacted a concrete block with a standoff distance of 5 mm (100 Mpa pressure) l Mode 3:
Jet passed through a hole of 100 mm depth in the concrete block (100 Mpa pressure) l Mode 4:
Like Mode 2, but on a limestone block. l Mode 5:
Nozzle was immersed in the hole of limestone blocks at the depth of 120 mm
(100 Mpa pressure). l Mode 6:
Like Mode 2, but the nozzle and the space between nozzle and the concrete block
were covered with a noise absorptive case. l
Mode 7: Like Mode 2, but at 250 Mpa pressure. l
Mode 8: Like Mode 6, but at
250 Mpa pressure. *Brenner, V.A., Pushkarev, A.Y., Golovin, K.A.,
Chukov, A.N., & Naumov,
Y.N. (2000) Measurement of noise characteristics of hydro-jet cutting tools,
Proceedings of the 15th International Conference on Jetting
Technology, Ronneby, Sweden, September 6-8, pp
277-281. |
|
QualJet
Quality Waterjet Spare Parts Specialist · Quality Waterjet Spare Parts o Meets/exceeds OEM standards o 30% longer operation life time than competing products · Extensive Parts Coverage for: o Flow style, IR Style o 40K/55K pumps o Intensifiers o On/off valves o Cutting head o Swivels · OEM Expert o 20+ year waterjet OEM experience (via OH Precision) o Accept small OEM order Durable, Compact 40K
PSI Pumps
· Long operation lifetime · Highly cost-effective · Light weight and compact · Contact us for o
Custom power end o
50K psi models o
Private labeling o
Custom
design Free Shipping
· Via UPS Ground QualJet
1-866-QUALJET (782-5538) Fax: 425-378-7776 Email: info@qualjet.com Website: www.qualjet.com To unsubscribe the
newsletter: unsubscribe@qualjet.com For newsletter archive: www.qualjet.com/Newsletter.htm
Copyright ©2008, QualJet |
|
|
