Assessment of Quench Severity of Vegetable Oil Blends for Heat Treatment of Steels

Narayan, Prabhu K.; Krishna, Shiva; Fernandes, Peter
July 2009
CURIE Journal;2009, Vol. 2 Issue 2, p28
Academic Journal
An investigation was carried out to study the suitability of vegetable oil blends with mineral oil as quench media for industrial heat treatment. Soyabean oil, rice bran oil, gingelly oil were blended with mineral oil (servoquench 11). A stainless steel probe of diameter 12mm and height 60mm was used to determine the cooling intensities of pure oils and their b lends. Time varying heat transfer coefficients were determined using a lumped heat capacitance model. Heat transfer coefficient is a measure of the severity of the quench medium. Quench severity of vegetable oils was found to be better than the conventional mineral oil. Among the vegetable oil blends, the oil blend consisting of 40% mineral and 60% soyabean oils showed higher severity of quenching as compared to other blends. Wetting characteristics of oils were assessed using a dynamic contact angle analyzer and were found to be in good agreement with their severity of quenching.


Related Articles

  • LATE SPOT PRICES.  // Chemical Market Reporter;3/14/2005, Vol. 267 Issue 11, p16 

    This article presents statistical information on prices of several crude vegetable oils. Some of the types of oils included are: Coconut Oil, Cottonseed Oil, Palm Oil, Soybean Oil, etc.

  • Comparative Effects of Animal and Vegetable Fats on Lipid Profile and Patho-physiological Changes in Mice. Akter, S.; Miah, M. A.; Khan, M. A. H. N. A.; Islam, M. K. // Journal of Scientific Research;2013, Vol. 5 Issue 2, p353 

    Dietary intake of high amounts of animal fats can cause hypercholesterolemia whereas plant fat like soybean oil reduces serum cholesterol and lipoproteins in mice. The effects of animal fat (butter) and plant fat (soybean oil) fortified diet on lipid profile (serum total cholesterol, low density...

  • Development of steel of strength class 390 and technology for producing rolled product for assembly components of spatial metal structures. Gladshtein, L. I.; Mosyagin, D. L.; Pemov, I. F.; Naumenko, A. A.; Yakushev, E. V.; Lopatkin, V. A. // Metallurgist;Jan2010, Vol. 54 Issue 1/2, p103 

    Technology is developed for producing profiled rolled product of low-alloy steel with improved physicomechanical and production properties. The rolled product is intended for the domestic construction of large engineering structures. Good rolled product weldability is revealed: an optimum heat...

  • miscible oils:. Gough, Robert E. // Glossary of Vital Terms for the Home Gardener;1993, p62 

    A definition of the term "miscible oils" is presented. They refer to vegetable or mineral oils with high emulsifiability in water and used as an insecticide.

  • oil.  // Taber's Cyclopedic Medical Dictionary;2005, p1513 

    A definition of the term "oil" is presented. The term refers to a greasy liquid not miscible with water. It is usually obtained from and classified as mineral, vegetable, or animal. According to character, oils are subdivided principally as fixed or fatty, and volatile or essential. The...

  • Edible oils: What's cooking in '07? De Guzman, Doris // ICIS Chemical Business Americas;1/8/2007, Vol. 271 Issue 1, p34 

    The article focuses on the demand for edible oils in the U.S. such as canola, olive oil and sunflower oil. The demand for olive oil is influenced by its potential health benefits such as lowering cholesterol and blood pressure. The demand for sunflower oil will boost sun-flower crushing to 1.3...

  • Looking for trans-fat alternatives. Alexander, Camila // Food Engineering & Ingredients;Nov2007, Vol. 32 Issue 4, p14 

    The article presents information on trans fat alternatives. According to the author, there are several options in avoiding trans fat and its adverse effects in health. These are rice bran oil; soybean oil; canola oil; and a combination of saturated palm oil, soybean oil, and sunflower oil....

  • Study on physicochemical properties of vegetable oils and their blends use as possible ecological lubricant. Talkit, Kailas M.; Mahajan, D. T.; Masand, V. H. // Journal of Chemical & Pharmaceutical Research;2012, Vol. 4 Issue 12, p5139 

    Vegetable oils due to high biodegrability, low toxicity, renewability and excellent lubricating performance, have immense potential to replace petroleum oils as feedstock for lubricants. In these study vegetable oils like soybean oil, castor oil, groundnut oil, and cottonseed oil was purchased...

  • CSPI Asks for Ban on Partially Hydrogenated Oils.  // Chemical Market Reporter;5/24/2004, Vol. 265 Issue 21, p3 

    Reports that the nonprofit consumer group, Center for Science in the Public Interest has formally petitioned the U.S. Food and Drug Administration to prohibit the use of partially hydrogenated vegetable oil (PHVO) as a food ingredient. Claim that PHVO is a major cause of heart disease and that...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics