chill

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chill

1. a feverish cold
2. a metal plate placed in a sand mould to accelerate cooling and control local grain growth

Chill

 

a sensation of cold that is caused by spasms of the superficial blood vessels. Chill is also accompanied by skin-muscle spasms, a phenomenon known as gooseflesh, and by muscle tremors, which arise mostly in the masticatory muscles and also in the muscles of the shoulder girdle, spine, and extremities. Chill often occurs as fever begins to rise in many pathological conditions, including traumas and infections. While experiencing chill, the body loses heat at a lower rate and produces heat at a higher rate; the increased heat production is due to muscle contraction, and after the body temperature rises, the chill usually ceases. Chill also occurs at the height of a fever if the body temperature fluctuates sharply.

Nervous, as opposed to physiological, chill is only a subjective sensation that occurs, for example, in neuroses. Chill is a normal protective reaction in response to exposure to cold. It can also occur in excitable persons under conditions of fear or agitation.

chill

[chil]
(metallurgy)
A metal plate inserted in the surface of a sand mold or placed in the mold cavity to rapidly cool and solidify the casting, producing a hard surface.
White or mottled iron occurring on the surface of a rapidly cooled gray iron casting.

CHILL

References in periodicals archive ?
SDAS measurements were taken on selective test bars samples (Table 3).The results show the cast iron chills produced equivalent or smaller SDAS than the composite chills, and the SDAS was more uniform across the plate width in the cast iron chill samples.
After all, intuition suggests that some legal rules will chill speech.
"There are a lot of ways in which people are basically alike, but the experience of chills isn't one of them," said the authors.
Recommendation: The variation between chilled and unchilled mechanical properties tends to be greater in alloys that have long freezing ranges, such as A206, because chilling can be used to improve directional solidification and therefore feeding of the alloy.
Develop the methodology to select either fins of chills with the same or similar effectiveness to the aluminum sand casting process.
In the same way, chills placed in a sand mold absorb the heat caused by the molten metal filling the mold.
By measuring the width of the chill on a solidified wedge sample, foundries can determine the relative carbon equivalent in the cast sample.
To improve productivity, two chill fin sections were added at the location of the cope chills (Fig.
Chills The basic advantages of cooling fins when compared to chills include:
A static system was simulated by charting chill results, silicon weight percents and temperature as functions of time.
Eat nutritious food and wear warm clothes to ward off winter chill
What's the big deal if weather forecasters exaggerate the effects of wind chill? Bluestein replies that more accurate estimates might help schools and businesses make better weather-related decisions.