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CN-122012167-A - High-efficiency lubricating and easy-cleaning stainless steel cold rolling oil composition

CN122012167ACN 122012167 ACN122012167 ACN 122012167ACN-122012167-A

Abstract

The invention relates to the technical field of rolling oil, and particularly discloses a high-efficiency lubricating and easy-to-clean stainless steel cold rolling oil composition, which comprises 58-77% of base oil by weight percent; 10% -25% of synthetic ester lubricating oil; 5% -12% of extreme pressure antiwear agent; 3% -8% of an oily agent; 0.5% -2% of an antioxidant; rust inhibitor 1% -3%; 0.5% -2% of a surfactant; 1% -3% of polyether dispersant; the nano silicon dioxide is 0.5-2%, the nano silicon dioxide and the polyether type dispersing agent are added into the rolling oil, so that oil film breakage at high temperature can be effectively avoided, iron powder agglomeration is prevented, the surface of equipment is not adhered, the cleaning performance is high, and the problems of oil sludge generation, nozzle blockage and equipment adhesion of the traditional rolling oil are effectively solved.

Inventors

  • SUN HAISHENG
  • ZHOU MINGJUN
  • HOU JIAXIN
  • LIU QI

Assignees

  • 上海天衍宸新材料科技有限公司
  • 湖南宝镁新材料科技有限公司

Dates

Publication Date
20260512
Application Date
20260318

Claims (10)

  1. 1. The high-efficiency lubrication easy-to-clean stainless steel cold rolling oil composition is characterized by comprising the following components in percentage by weight: 58% -77% of base oil; 10% -25% of synthetic ester lubricating oil; 5% -12% of extreme pressure antiwear agent; 3% -8% of an oily agent; 0.5% -2% of antioxidant; 1% -3% of antirust agent; 0.5% -2% of surfactant; 1% -3% of polyether dispersant; 0.5% -2% of nano silicon dioxide.
  2. 2. The high-efficiency lubricating and easy-to-clean stainless steel cold rolling oil composition according to claim 1, wherein the polyether type dispersing agent is polyoxyethylene polyoxypropylene block polyether.
  3. 3. The high-efficiency lubricating and easy-to-clean stainless steel cold rolling oil composition according to claim 1, wherein the base oil is hydrofined type II or type III light white oil, and the kinematic viscosity at 40 ℃ is 8-15mm2/s.
  4. 4. A high efficiency lubricating easy cleaning stainless steel cold rolling oil composition according to claim 1, characterized in that said synthetic like lubricant is one or more of pentaerythritol ester, trimethylol propane ester or trimellitate ester.
  5. 5. The high-efficiency lubricating and easy-to-clean stainless steel cold rolling oil composition according to claim 1, wherein the extreme pressure antiwear agent is one or more of phosphorothioate, amine phosphate or sulfurized fatty acid ester.
  6. 6. The high-efficiency lubrication easy-to-clean stainless steel cold rolling oil composition according to claim 1, wherein the oily agent is one or more of fatty glyceride, fatty alcohol or high molecular polyether.
  7. 7. A high efficiency lubricating easy clean stainless steel cold rolling oil composition as claimed in claim 1, wherein said antioxidant is a complex of phenolic antioxidants and aminic antioxidants.
  8. 8. The high-efficiency lubricating and easy-to-clean stainless steel cold rolling oil composition according to claim 1, wherein the rust inhibitor is one or more of alkenyl succinic acid half ester and boronated succinic acid ester.
  9. 9. The high-efficiency lubricating and easy-to-clean stainless steel cold rolling oil composition according to claim 1, wherein the surfactant is a nonionic surfactant and has an HLB value of 8-12.
  10. 10. A process for preparing a rolling oil composition according to any one of claims 1 to 9, characterized by comprising the steps of: a. adding base oil into a reaction kettle, heating to 60 ℃ plus or minus 5 ℃, and starting stirring at a rotating speed of 150 r/min; b. sequentially adding the synthetic ester lubricant and the oily agent, and stirring until the mixture is uniformly mixed; c. slowly adding an extreme pressure antiwear agent, an antioxidant and an antirust agent, and stirring at 150r/min after adding one component, so as to ensure complete dissolution; d. adding polyether dispersant and nano silicon dioxide, stirring for 30-50 minutes at 150r/min to uniformly disperse the nano particles; e. Adding a surfactant, adjusting the stirring rotation speed to 200r/min, and continuously stirring until the system is uniform and transparent; f. cooling to below 40 ℃, and filtering to obtain the finished product rolling oil concentrate.

Description

High-efficiency lubricating and easy-cleaning stainless steel cold rolling oil composition Technical Field The invention relates to the technical field of rolling oil, in particular to a high-efficiency lubricating and easy-cleaning stainless steel cold rolling oil composition. Background The stainless steel hot rolling is a plastic deformation process carried out under the high temperature and high pressure conditions of 1000-1250 ℃, and severe friction and strong rolling force exist between a roller and a high-temperature steel belt, so that the severe requirement on the comprehensive performance of rolling oil is put forward. If no effective lubrication and cleaning guarantee is provided, the following problems are caused: The rolling force and the energy consumption are increased, namely the load of a main motor is increased due to the excessively high friction coefficient, and the power consumption of ton steel is obviously increased; the roll loss is aggravated, fatigue cracks and peeling are easy to occur on the surface of the roll at high temperature, the phenomenon of sticking steel frequently occurs, the service life is shortened, and the production cost is increased; The surface quality defect of the product is that the steel belt is easy to have the problems of scratch, pitting, iron scale pressing in and the like, and the finish and the yield are reduced; The control of the shape is difficult, namely abnormal thermal convexity of the roller is caused by uneven lubrication, and poor shape such as wave shape, warping and the like is caused; The equipment system is polluted, the traditional rolling oil has poor high-temperature detergency, oil sludge and carbon deposit are easy to generate, a nozzle is blocked, a cooling water system is polluted, and meanwhile, impurities such as iron powder and the like are agglomerated and adhered, so that the equipment wear is increased. The stainless steel hot rolling oil in the current market also has short plates with insufficient oil film strength at high temperature, easy rupture, difficult extreme pressure abrasion resistance meeting the working condition, weak high-temperature detergency and impurity dispersing capability, easy agglomeration of iron powder, and excessive surface residues caused by oil sludge generation. Therefore, it is very necessary to develop a stainless steel hot-rolled oil which combines excellent lubricity, extreme pressure antiwear property, high temperature stability and easy cleaning. Disclosure of Invention In order to solve the problems in the prior art, the invention aims to provide a high-efficiency lubricating and easy-cleaning stainless steel cold rolling oil composition. In order to achieve the above object, the technical scheme of the present invention is as follows: The high-efficiency lubrication easy-to-clean stainless steel cold rolling oil composition comprises the following components in percentage by weight: 58% -77% of base oil; 10% -25% of synthetic ester lubricating oil; 5% -12% of extreme pressure antiwear agent; 3% -8% of an oily agent; 0.5% -2% of antioxidant; 1% -3% of antirust agent; 0.5% -2% of surfactant; 1% -3% of polyether dispersant; 0.5% -2% of nano silicon dioxide. Further, the polyether type dispersing agent is polyoxyethylene polyoxypropylene block polyether, the molecular weight of the polyoxyethylene polyoxypropylene block polyether is between 2000 and 8000, the molecular structure of the polyoxyethylene polyoxypropylene block polyether contains an oleophylic segment and a hydrophilic segment, the oleophylic segment can be adsorbed on the surface of hydrophobic impurities such as iron powder, the hydrophilic segment forms a steric hindrance layer towards the water phase, electrostatic repulsion force is generated between the hydrophilic segment and the amino by means of ether bonds on a molecular chain, agglomeration of impurity particles can be effectively prevented, and the polyoxyethylene polyoxypropylene block polyether is good in stability at high temperature and not easy to decompose. Furthermore, the base oil is hydrofined II or III light white oil, has the kinematic viscosity of 8-15mm < 2 >/s at 40 ℃, and has the characteristics of low sulfur, low aromatic hydrocarbon, high saturation, light color and good oxidation stability. Further, the synthetic lubricant is one or more of pentaerythritol ester, trimethylolpropane ester or trimellitate, has strong polar adsorption capacity and excellent lubricity, and has high flash point, low volatility and good biodegradability. Furthermore, the extreme pressure antiwear agent is one or more of phosphorothioate, amine phosphate or sulfurized fatty acid ester, and can react with the metal surface at high temperature to generate high-strength ferric sulfide and ferric phosphate protective film. Furthermore, the oily agent is one or more of fatty glyceride, fatty alcohol or high molecular polyether, and can be physically adsorbed on the surface of me