Petro Quench Oil
Accelerated Mineral Quench Oil
Petro Quench Oil is a premier
quality accelerated quench oil specifically developed for the specialist
heat treatment of carbon or low or low alloy steels. It is a blend of
highly refined parafinic base oils supplemented by a comprehensive
additive system. This combination imparts superior thermal and oxidation
stability, inhibits the formation of sludges and improves the rate of
quench. Being of low viscosity and having excellent vocality
characteristic, Petro Quench Oil gives a very tast quench whilst
preserving all of the the advantages of oil.
Benefits
• Excellent oxidation and thermal stability which cintributes to long oil life in service.
• Low vocality ensuring low oil consumption though vocatilisation.
• High boiling range providing an optimum vapour blanket stage and fast quench rate.
• Good water shedding properties allowing fast removal of contaminant water.
• Good interstage corrosion inhibition protecting the workpieces.
Petro Quench Oil is particularly
recommended for the accelerated quenching of low alloy or carbon steels
where it is desirable to product shallow surface hardening. The degree
would be dependent upon the requirement and the configuration of the
component.
Being of low viscosity it is particularly applicable to batch heat treatment where drag out losses need to be minimized.
Weight Loss and Viscosity increse
As a result of the careful
selection of base oils and additives system, the weight loss and
viscosity increase as measured after 28 days at 100ºC was minimal. This
evaluation demonstrated the low vocality characteristics, excellent
thermal and oxidation stability of Petro Quench Oil. The performance was
superior to that of a straight dumbbell blended oil of similar
viscosity.
Maintenance of the Oil
For satisfactory service, the
quench tank oil should be maintained at a working temperature of between
50ºC to 70ºC and the quantity of scale and sludge carefully controlled.
Solid matter agitated with the oil is liable to adhere to the
workpieces,retard heat transfer and increase the risk of soft spots,
distortion and cracking. It also has a pro-oxidant effect on the oil.
Circulating systems should always be fitted with fine metalic strainers
capable of removing the majority of solid particles. Regular oil
analysis is recommended as a method of preventative maintenance and can
provide an early indication of oil deterioration.
Water
Quench oils often contain traces
of water, sometimes from cooling equipment leakage and often from
condensation. Amounts of say below 0.1% by weight are not encommon and
can can be tolerated. With quantities of free water however,there is a
real danger of cracking workpieces and if steam is formed during
quenchinn, violent foaming may occur. Every effort should therefore be
made ti minimize if not completely eliminate water ingress into the
quenching oil system from whatever source.
Health and Safety
Petro Quench Oil is inlikely to
pose any toxic hazard when used in the recommended applications,
provided good standard of personal and industrial hygiene are observed.
For further guidance on health
and safety, refer to the brochure 'Petro Lubricant and Related
Product,Guide to Health and Safety'. In this guide. Under product
precautions, Petro Quench Oil is of Type 1
Typical Physical Characteristics
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