1、in the typical part of the austenitic isothermal transition diagram, ie, about 500-600℃, the water is in the steam film stage, and the cooling speed is not fast enough, which often leads to the "soft point" formed by uneven cooling and insufficient cooling speed of forging.In the martensitic transformation system, that is, about 300-100℃, the water is in the boiling stage, the cooling speed is too fast, Facile ut martensitic transformatio celeritate est ieiunium et producendum magna moles interna accentus, unde in colaging deformatio vel etiam elit.

II, aquam temperatus habet magna potentia in refrigerationem capacitatem, sic est sensitiva ad mutationem ambientium temperatus. Sicut aqua temperatus crescit, et refrigerationem facultatem decrescit acriter et temperatus range maximam refrigerationem rate movet humilis temperatus.when aqua temperatus excedit XXX ℃ decrescat, quod saepe in range in range martense transformation.when ad aquas calor non decrescat, quod saepe in range ad aquam, quod est ad flobus, quod est in range in range in range, quod est in refrigerationem in range in range, quod aquam, quod saepe in range in range in range martense transformation.when aquae ad aquas martense transformation.when ad aquas ad aquas martensen transformation.when aquae caliditas ad LX ℃ Refrigerant rate erit minui per circiter L%.

III, cum aqua continet magis Gas (ut nova aqua), aut aqua mixta cum insolubilis impudicitiis, ut oleum, saponem, luto, etc., et signanter reducere sua refrigerationem facultatem, ita et signanter reducere sua refrigerationem capacitatem, ita et procuratio ut sit, ut etc.
According to the cooling characteristics of water, water H can be used for quenching and cooling of carbon steel forgings with small section size and simple shape.Quenching, must also note: keep the water temperature below 40 ℃, the best between 15 to 30 ℃, and keep the water or liquid circulation, to destroy the forging surface steam membrane, also can use swing workpiece during quenching (or make the workpiece moves up and down) method Subvert ad vapor membranam, crescere gradum refrigerationem inter 500-650 ℃, in refrigerationem condiciones, ne ad producendum mollis illud.

A: CLXVIII Net