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Quenching Oil

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Quenching Oil:
Witcol Quenching Oil are formulated from refined mineral oil with additives to obtain good thermal, chemical , oxidation Stability.
DESCRIPTION:
The term quenching normally refers to the controlled cooling of steel components in a fluid to give specified properties. The hardness and other physical properties obtained depend on the composition of the steel, the dimension of the component, the time and temperature of the heat treatment and the speed and duration of the quenching process. A number of quenching mediums such as molten salts, brine water, synthetic quenchants can be used, but petroleum based medium find the widest application due to the following advantages. They are easier to control and give uniform hardness. Suitable for large scale automation. They are non-corrosive and non-toxic. ‘Witcol Temper Lube Grades’ have been specially formulated from highly refined petroleum oils with additives and have the following characteristics:-

  • Good thermal properties
  • Good chemical oxidation stability
  • High boiling points & low volatility
  • High flash & hire points

TEMPER LUBE 39 / 40
These are blends of refined base oils and contain no additives. ‘ Wtcol Temper Lube 39’ is recommended for general purpose quenching of components and is particularly suitable for quenching of cynided parts. ‘Witcol Temper Lube 40’ is suitable in situations where lower quenching speed is desired. These meet the requirement of IS 2664-1980 Straight Mineral Type Grade Medium and Heavy respectively.
TEMPER LUBE 42/ 42 SPL
This is blend of refined petroleum oil and high quality fatty oils. It has good wetting characteristics and has a higher quenching speed compared to ‘Witcol Temper Lube 39 and Witcol Temper Lube 40. Recommended for general purpose quenching operation but is not suitable for quenching of cynided parts. It meets the requirement of IS 2664-1980 Compounded type.
TEMPER LUBE 43
It is an additive type of Quenching Oil with good dispersant characteristics and has excellent heat transfer properties. The carefully selected additive incorporated in this oil controls soiling of metallic parts during quenching by preventing dirt from accumulating on the metal and thereby ensures uniform hardness with minimum quench distortions. It meets the requirements of IS 2664-1980, Additive Type.
TEMPER LUBE 85
Marquenching oil suitable for maintaining the quenching bath at 150 to 220° C. It is recommended for the mass production of high precision, high quality products, such as bearing races automotive gears and transmission components. It gives low and predictable quench distortions cutting down rejects. It meets the requirements of IS 4543-1977.
TECHNICAL SPECIFICATION:

PROPERTIES

39

40

42

42 SPL

43

85

Viscosity @ 40° C (Cst)

28

62

28

28.6

28

16@100°C

Viscosity Index

90

90

90

135

90

90

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