Special high-frequency water-based quenching liquid for induction gear and preparation method of special high-frequency water-based quenching liquid for induction gear

Abstract

The invention discloses a special high-frequency water-based quenching liquid for an induction gear. The special high-frequency water-based quenching liquid for the induction gear is prepared from thefollowing substances in parts by weight: 25-30 parts of polymer polyvinyl alcohol resin particles, 50-60 parts of deionized water, 1-2.5 parts of an efficient brightener, 2.5-3 parts of an anticorrosion inhibitor and 1.5-2 parts of a surfactant. A preparation method of the special high-frequency water-based quenching liquid for the induction gear comprises the following steps of (1) in a normal temperature state, dissolving a proper amount of the polymer polyvinyl alcohol resin particles into a certain amount of the deionized water, performing stirring for 20-25min, then heating a mixture to80-85 DEG C, and performing continuous stirring for 2-2.5h at a constant temperature; and (2) filtering impurities from a mixture, then sequentially adding the efficient brightener, the anticorrosioninhibitor and the surfactant according to a ratio, performing continuous stirring for 40-60min, and performing uniform stirring to obtain the special high-frequency water-based quenching liquid for the induction gear. The special high-frequency water-based quenching liquid for the induction gear can greatly improve the cooling performance during quenching of the induction gear, is small in oil fume after quenching, pointedly solves the problem of insufficient hardness of quenching structures of various induction gears, is good in mechanism performance with a metallographic structure, is permanently sheeny and is liable to clean.

Description

technical field [0001] The invention relates to the technical field of quenching liquid, in particular to a special high-frequency water-based quenching liquid for induction gears and a preparation method thereof. Background technique [0002] The quenching liquid is made of polyether polymer materials with various surfactants added, and has many advantages, 1. It is safe and environmentally friendly because it is soluble in water. 2. Low cost and economical. 3. High calorific value. 4. 1. The processed workpiece has high hardness, less deformation, deep hardened layer, 5. Strong anti-corrosion performance, good anti-corrosion durability, 6. Long service life, so it is widely used in heat treatment of workpieces. [0003] The high-frequency quenching machine adopts induction heating to quench various gears. The quenching liquid currently used is made of general mineral base oil plus common refrigerants, antioxidants and other additives. In this case, it is prepared according...

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Problems solved by technology

[0003] The high-frequency quenching machine adopts induction heating to quench various gears. The quenching liquid currently used is made of general mineral base oil plus common refrigerants, antioxidants and other additives. In this case, it is prepared according to the current technology. The cooling performance of quenching oil is average, and the cooling rate is lower than the critical cooling rate. As a result, the hardened layer of the workpiece with low hardenability is shallow and the hardness of the surface hardened layer is not enough. The liquid cooling speed is extremely fast, and the water-based quenching liquid is used, which has good environmental protection performance and deepens the hardened layer