Lubricating oil for cold rolling of tubular products and preparation method of lubricating oil
A pipe cold rolling and lubricating oil technology, applied in the direction of lubricating composition, petroleum industry, etc., can solve problems such as disadvantages and unreachable cycle life, meet the requirements of the process without harshness, reduce the comprehensive cost of rolling, and the process flow is simple Effect
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Embodiment 1
[0029] Firstly, the kinematic viscosity at 100°C, which is weighed by parts by weight, is 1-7mm 2 / s low viscosity mineral oil and kinematic viscosity at 100°C is 7-25mm 2 60 parts of the high-viscosity mineral oil of / s is mixed by weight ratio 1: 0.5 and 15 parts of reddish-brown transparent natural rapeseed oils and drop into the container that has stirring device and heating device as in the reactor and stir under heating, The heating temperature of the heating device is controlled to be 40°C, the stirring time of the stirring device is controlled to be 30min, the stirring speed of the stirring device is controlled to be 70rpm, and the relative density is 0.86-0.92g / cm3 at 20°C, which is weighed in parts by weight, and 3 parts of palm oil with a kinematic viscosity of 8-100mm² / s at 40°C, 10 parts of a mixture of 3 parts of phenols / phosphite and 1 part of dialkyl diphenylamine, weighed in parts by weight, 20 parts of a mixture of 2 parts of benzotriazole derivatives and 3 ...
Embodiment 2
[0031] Firstly, the kinematic viscosity at 100°C, which is weighed by parts by weight, is 1-7mm 2 / s low viscosity mineral oil and kinematic viscosity at 100°C is 7-25mm 2 5 parts of the high-viscosity mineral oil of / s is mixed by weight ratio 1: 0.2 and 2 parts of reddish-brown transparent natural rapeseed oils drop into the container that has stirring device and heating device as in the reactor and stir under heating, The heating temperature of the heating device is controlled to be 50°C, the stirring time of the stirring device is controlled to be 20min, the stirring speed of the stirring device is controlled to be 80rpm, and the relative density is 0.86-0.92g / cm3 at 20°C which is weighed in parts by weight and 0.5 parts of palm oil with a kinematic viscosity of 8-100mm² / s at 40°C, 1 part of a mixture of 0.5 parts of phenols / phosphites and 5 parts of dialkyl diphenylamines weighed in parts by weight, A mixture of 0.1 parts of benzotriazole derivatives and 8 parts of sulfu...
Embodiment 3
[0033] Firstly, the kinematic viscosity at 100°C, which is weighed by parts by weight, is 1-7mm 2 / s low viscosity mineral oil and kinematic viscosity at 100°C is 7-25mm 2 20 parts of the mixture of the high-viscosity mineral oil of / s is mixed by weight ratio 1: 0.7 and 22 parts of reddish-brown transparent natural rapeseed oils and drop into the container that has stirring device and heating device as in the reactor and stir under heating state, The heating temperature of the heating device is controlled to be 45°C, the stirring time of the stirring device is controlled to be 25min, the stirring speed of the stirring device is controlled to be 75rpm, and the relative density is 0.86-0.92g / cm³ at 20°C, which is weighed in parts by weight, and 10 parts of palm oil with a kinematic viscosity of 8-100mm² / s at 40°C, 8 parts of a mixture of 1.5 parts of phenols / phosphite and 2.5 parts of dialkyl diphenylamine, weighed in parts by weight, 2 parts of a mixture of 5 parts of benzotr...
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