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Temper by dipping in water of influence rolled steel appears sexual element
From;    Author:Stand originally
The main factor that affects rolled steel temper by dipping in water to appear a gender has; The chemical composition of rolled steel, quench heat the shape size of the character of temperature, cooling medium, cooling means method, spare parts and heat means.
(The chemical composition of 1) rolled steel is one of factors with affect temper by dipping in water to appear a gender the mainest. Always bring in steel " C " the curve is right move or left moving alloying element, comfortable to temper by dipping in water sex is having huge effect. Make " C " the curve is right moving element shows the oil that raises steel the gender; Make " C " the curve is left moving element shows the oil that reduces steel the gender. Be like 45 steel and 40Cr steel, its contain carbon the amount is similar, but, as a result of former do not contain chromic element, latter contains an element to make an appointment with 1 % , be in equal below heat treatment condition, their temper by dipping in water appears a gender to differ apparently, 45 steel can temper by dipping in water is far 3. 5, 9. 5 millimeter, and 40Cr steel but temper by dipping in water appears 25-32 millimeter.
(The cooling character of medium of refrigeration of 2) heat treatment and cooling rate, appear a gender to also have very big effect to the temper by dipping in water of steel. Cooling rate is rapid, temper by dipping in water appears a gender to rise, cooling rate but, temper by dipping in water appears a gender to be reduced. 45 steel cool in water and cool in oil for example, its temper by dipping in water appears a gender to differ, when cooling in water, but temper by dipping in water appears 11 one 20 millimeter, when cooling in oil, but temper by dipping in water is appeared 3. 5, 9. 5 millimeter.
(The shape size of 3) spare parts, heat temperature, cooling means, the temper by dipping in water that affecting steel on different level appears a gender. Shape size is small, heat temperature is high, successive refrigeration can raise temper by dipping in water to appear a gender on certain level; And shape size is large, heat temperature is isothermal and low, cooling wait to be able to make temper by dipping in water appears a gender to drop however.
(The means that 4) heats also can affect temper by dipping in water to appear a gender, in be being operated actually, this is very important, we often ignore this easily. Because heat,means differs, of generation heat the effect is distinct also. Phenomenon of the oxidation that compares generation of saline bath furnace with box type electric stove for example, decarbonization is serious, can reduce temper by dipping in water to appear a gender.