Special quenching oil for plate spring and preparation method for special quenching oil
A manufacturing method and quenching oil technology, applied in the direction of quenching agent, manufacturing tools, heat treatment equipment, etc., can solve the problems of insufficient penetration of cracking and quenching layer, and inability to reconcile deformation of quenching medium, so as to achieve precise control and extended use. Longevity, the effect of ensuring uniformity
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Embodiment 1
[0051] A special quenching oil for leaf springs provided in this embodiment, its composition and the mass parts of each component include: 30 parts of refined base oil, 4 parts of refrigerant, 0.03 part of antioxidant, 0.5 part of brightener, surface Active agent 0.3 part; The kinematic viscosity of described refined base oil is 13~24mm 2 / s, acid value≤0.8mgKOH / g; the refrigerant is a mixture of polyisobutylene and polyol ester, the mixing mass ratio is 1:3; the antioxidant is alkylated diphenylamine (CAS No.68921-45 -9) and 2.6-di-tert-butyl-p-cresol (CAS No.128-37-0), the mass ratio is 1:1; the brightener is a mixture of imidazoline oleate and methyl terpene resin, mass The ratio is 1:1; the surfactant is dioctyl sodium dibutyrate sulfonate (CAS No.577-11-7).
[0052] The preparation method of above-mentioned quenching oil is as follows:
[0053] (1) Weigh 18 parts of refined base oil in proportion, add 4 parts of refrigerant, 0.2 part of surfactant and 0.02 part of antio...
Embodiment 2
[0062] A special quenching oil for leaf springs provided in this embodiment, its composition and the mass parts of each component include 25 parts of refined base oil, 2 parts of refrigerant, 0.02 part of antioxidant, 0.3 part of brightener, surface active 0.5 parts of agent; the kinematic viscosity of the refined base oil is 15-20mm 2 / s, acid value≤0.6mgKOH / g; the refrigerant is a mixture of polyisobutylene and trimethylolpropane tri-n-nonanoate, the mixing mass ratio is 1:1; the antioxidant is alkylated diphenylamine (CAS No.68921-45-9) and 2.6-di-tert-butyl-p-cresol (CAS No.128-37-0), the mass ratio is 1:1; the brightener is imidazoline oleate and formazan Base terpene resin mixture, the mass ratio is 1:1; the surfactant is dioctyl sulfonate sodium dibutyrate (CASNo.577-11-7).
[0063] The preparation method of above-mentioned quenching oil is as follows:
[0064] (1) Weigh 20 parts of refined base oil in proportion, and add 2 parts of refrigerant, 0.4 part of surfactant...
Embodiment 3
[0071] Compared with Example 2, the special quenching oil for leaf springs provided in this example only differs in that its composition and the mass fractions of each component include 25 parts of refined base oil, 2 parts of refrigerant, 0.02 part of antioxidant, 0.3 part of brightener, 0.5 part of surfactant; the kinematic viscosity of the refined base oil is 15-20mm 2 / s, acid value≤0.6mgKOH / g; the refrigerant is a mixture of polyisobutylene and trimethylolpropane tri-n-nonanoate, the mixing mass ratio is 1:3; the antioxidant is alkylated diphenylamine (CAS No.68921-45-9) and 2.6-di-tert-butyl-p-cresol (CAS No.128-37-0), the mass ratio is 1:1; the brightener is imidazoline oleate and formazan Base terpene resin mixture, the mass ratio is 1:1; the surfactant is dioctyl sodium dibutyrate sulfonate (CAS No.577-11-7).
[0072] The preparation method of above-mentioned quenching oil is with embodiment 2.
[0073] Under the conditions of the quenching process adopted by the ap...
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