CN110257154A - The preparation method of Rolling Lubricant base oil - Google Patents
The preparation method of Rolling Lubricant base oil Download PDFInfo
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- CN110257154A CN110257154A CN201910465304.8A CN201910465304A CN110257154A CN 110257154 A CN110257154 A CN 110257154A CN 201910465304 A CN201910465304 A CN 201910465304A CN 110257154 A CN110257154 A CN 110257154A
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M177/00—Special methods of preparation of lubricating compositions; Chemical modification by after-treatment of components or of the whole of a lubricating composition, not covered by other classes
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
- C10N2020/01—Physico-chemical properties
- C10N2020/055—Particles related characteristics
- C10N2020/06—Particles of special shape or size
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/06—Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/24—Emulsion properties
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/20—Metal working
- C10N2040/24—Metal working without essential removal of material, e.g. forming, gorging, drawing, pressing, stamping, rolling or extruding; Punching metal
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/20—Metal working
- C10N2040/244—Metal working of specific metals
- C10N2040/246—Iron or steel
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2070/00—Specific manufacturing methods for lubricant compositions
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Metal Rolling (AREA)
Abstract
The present invention discloses a kind of preparation method of Rolling Lubricant base oil, wherein, above-mentioned preparation method is comprising steps of execute step S1, wherein, in the rolled piece operation of rolling, by adjusting the granularity of Rolling Lubricant in rolling scene dynamic, so that the granularity of Rolling Lubricant is adjusted to desired use state, to obtain the Rolling Lubricant with desired granularity；Execute step S2, wherein the Rolling Lubricant with the expectation granularity is subjected to lab analysis, and measures the value of the expectation granularity, the basic oil formula of the expectation granularity is provided with reverse-direction derivation；And execute step S3, wherein according to the basic oil formula of acquisition, produce base oil.The present invention can significantly shorten the debugging cycle of Rolling Lubricant base oil, and the manufacturing cost of oily factory and steel mill is greatly reduced.
Description
Technical field
The present invention relates to stainless-steel cold-rolling lubrication technical field more particularly to a kind of preparation sides of Rolling Lubricant base oil
Method.
Background technique
Stainless steel cold continuous rolling is lubricated by Rolling Lubricant.Currently, Rolling Lubricant mainly uses emulsion, because
This, Rolling Lubricant is also commonly referred to as emulsion, and emulsion is mixed according to a certain percentage by base oil and demineralized water.In view of
The lubricating conditions differences such as mill type, gloss level of roll, belt steel surface roughness demand, therefore the thickness of oil film is formed to deformed area
There is very high requirement with intensity.And the granularity of base oil plays a crucial role the thickness and intensity of oil film.?
Granularity is bigger, and oil film is more easy to form, and oil film thickness and intensity are higher, and lubrication is more preferable, and belt steel surface roughness is higher, conversely,
Then belt steel surface roughness is lower.
In general, the determination of the granularity to base oil, typically carries out basic oil formula design in laboratory first, then
It is produced and processed by the small lot of oily factory, is then delivered to steel mill and carries out test use.Once granularity is unable to satisfy produced on-site,
Then need to wait the base oil of the next batch production of oily factory.Thus, repetitious field test is generally required, can just be obtained
Optimal granularity and base oil with optimal granularity.However, can thus produce many substandard products, and adjust
Complete cycle is long, improves the manufacturing cost of steel mill and oily factory both sides.Traditionally, to the adjustment of the determination of base oil granularity
Period or test period typically need 6 batches, 3 months time-consuming.Therefore, preparation has rolling for desired base oil granularity
The conventional method needs of lubricating fluid base oil processed consume a longer time, and produce many substandard products, manufacture at
This is higher.
Therefore, this field needs a kind of preparation method of new Rolling Lubricant base oil, can significantly shorten rolling profit
The debugging cycle of synovia basis oil formula, and manufacturing cost can be reduced.
Summary of the invention
For the above-mentioned technical problems in the prior art, the purpose of the present invention is to provide a kind of rolling lubrication liquid-baseds
The preparation method of plinth oil, can under factory's tandem mill as-rolled condition scene dynamic adjust Rolling Lubricant granularity, will
The granularity of Rolling Lubricant is adjusted to optimal use state or expectation use state, exports desired basis so as to reverse push
Oil formula, therefore can significantly shorten the debugging cycle of Rolling Lubricant base oil, and the production system of oily factory and steel mill is greatly reduced
Cause this.
It emphasizes herein, it is unless otherwise indicated, the common meaning of various scientific and technical terminologies in terms used herein and this field, each
The meaning of technical term defined in kind technology dictionary, textbook etc. is consistent.
Term " demineralized water " refers to using various water treatment technologies, remove suspended matter, colloid and inorganic cation, yin from
After the impurities in water such as son, obtained product water.
Term " granularity " refers to the size of olesome in emulsion.
The stability of emulsion is an extremely important index.Emulsion can be stable state according to the analysis of stability after emulsification
Emulsion, half stable state emulsion and unstable state emulsion, or referred to as emulsifying emulsion, dispersion stability type emulsion and disperse
Type emulsion.
Term " emulsion stability index (Emulsion Stability Indicator, ESI) " shows the steady of emulsion
Qualitative energy measures the oil mass separated usually after static 30 minutes to get the index of stability for arriving emulsion.
Term " draught pressure " refer to roll be applied to rolled piece be allowed to generate plastic deformation power, also referred to as roll-force or
Roll gross pressure.
Term " advancing slip " refers in the operation of rolling, is rolled the phenomenon that muzzle velocity of metal is greater than roll speed,
Characterising parameter is known as advancing slip value.
Emulsifier refers to the additive of olesome in control emulsion, is factor more crucial in ROLLING OIL.It
It is mainly used for oil mixing with water, during the rolling process, can play the role of lubricating roll and rolled piece, can also play cooling
Effect.
Term " concentration " is to indicate the total concentration of ROLLING OIL in emulsion.
Term " plating-out ability " refers to that oil phase component is in the adhesive ability of metal surface in emulsion.
An embodiment according to the present invention provides a kind of preparation method of Rolling Lubricant base oil, wherein the preparation side
Method comprising steps of
Execute step S1, wherein in the rolled piece operation of rolling, by for adjusting Rolling Lubricant in rolling scene dynamic
Granularity, to obtain the Rolling Lubricant with desired granularity；
Execute step S2, wherein the Rolling Lubricant with the expectation granularity is subjected to lab analysis, and is measured
The value of the expectation granularity out provides the basic oil formula of the expectation granularity with reverse-direction derivation；
Execute step S3, wherein according to the basic oil formula of acquisition, produce base oil.
Further, the preparation method may also include that in executing step S1, firstly, executable step S11, wherein
The first base oil for having design granularity is supplied to rolling scene, and is configured to first Rolling Lubricant.Preferably, described to set
Counting granularity can be 20 μm, and can be had by the first Rolling Lubricant that the first base oil is configured between 0.2~0.4 model
Enclose interior emulsion stability index (ESI).
Further, the preparation method may also include that after executing step S11, execute step S12, wherein roll in batches
Make an appropriate number of rolled piece.
Further, the preparation method may also include that in executing step S12, a variety of rolling parameters can be monitored, with true
As-rolled condition is protected to stablize.Preferably, the rolling parameter includes the roughness, roll-force and advancing slip value on rolled piece surface.
Further, the preparation method may also include that after executing step S12, step S13 can be performed, wherein rolling
Production line tail portion processed, can choose rolled piece sample, to measure the roughness on rolled piece surface.
Further, the preparation method may also include that after executing step S13, step S14 can be performed, wherein can root
According to the roughness on the rolled piece surface measured, adjust the granularity of Rolling Lubricant, wherein if the roughness on rolled piece surface compared with
Greatly, then the granularity of Rolling Lubricant can be reduced, and if the roughness on rolled piece surface is smaller, Rolling Lubricant can be improved
Granularity.
Further, the preparation method may also include that execute step S14 in, if the roughness on rolled piece surface compared with
Greatly, then the granularity of Rolling Lubricant can be reduced by adding suitable first base oil, water and emulsifier special；Or such as
The roughness on fruit rolled piece surface is smaller, then can improve the particle of Rolling Lubricant by adding a large amount of first base oil and water
Degree.
Further, the preparation method may also include that after executing step S14, execute step S15, wherein repeatable
Execute step S12, step S13 and step S14, to obtain desired rolled piece roughness, and to desired rolled piece roughness pair
The Rolling Lubricant sampling answered, to carry out particle size analysis.
Further, the preparation method may also include that after executing step S15, and step S16 can be performed, wherein if
The granularity of Rolling Lubricant is too small, then can largely supplement first base oil, to obtain the rolling with the expectation granularity
Lubricating fluid.
Further, the preparation method may also include that after executing step S16, step S17 can be performed, wherein can be right
The rolled piece of multiple steel grades repeats step S1 and S2, with the Rolling Lubricant basis oil formula that determination is optimal.
The preparation method of the Rolling Lubricant base oil provided according to embodiments of the present invention can have the following beneficial effects:
Firstly, the present invention can substantially shorten the adjustment time and preparation time of Rolling Lubricant basis oil formula, such as adjust
The whole time can shorten to 2 batch for 3 months 1 month from 6 traditional batch；
Secondly, the present invention can reduce the product disqualification rate during adjustment Rolling Lubricant granularity；
Again, the present invention can reduce the production cost of fuel feeding side and steel mill both sides, such as can reduce oily factory and steel mill's manufacture
30% or more cost, and then can also quickly adjust plate quality；
4th, the present invention is adaptable, practical, also can be applied to the Rolling Lubricant base oil of other tandem mills
Preparation；
5th, the present invention can solve the problems, such as that the proportion of Rolling Lubricant basis oil formula and live reality are incompatible.
Detailed description of the invention
Attached drawing described herein is used to provide to further understand the embodiment of the present invention, constitutes of the invention one
Point, the illustrative embodiments of the present invention and their descriptions are used to explain the present invention, does not constitute improper limitations of the present invention.Attached
In figure:
Fig. 1 schematically shows the flow chart of the preparation method of Rolling Lubricant base oil according to an embodiment of the invention；
Fig. 2 further shows the flow chart of the preparation method of the Rolling Lubricant base oil of Fig. 1；
Fig. 3 exemplifies lubricating fluid stability and band in the preparation method of an exemplary Rolling Lubricant base oil of the invention
Relationship between steel surface roughness.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with the specific embodiment of the invention and
Technical solution of the present invention is clearly and completely described in corresponding attached drawing.Obviously, described embodiment is only of the invention
A part of the embodiment, instead of all the embodiments.Based on the embodiment of the present invention, those of ordinary skill in the art are not doing
Every other embodiment obtained under the premise of creative work out, shall fall within the protection scope of the present invention.
Below in conjunction with attached drawing, the technical solution provided according to embodiments of the present invention is described in detail.
Referring to Fig. 1, an embodiment, provides a kind of preparation method of Rolling Lubricant base oil, wherein institute according to the present invention
State preparation method comprising steps of
Execute step S1, wherein in the rolled piece operation of rolling, by for adjusting Rolling Lubricant in rolling scene dynamic
Granularity, to obtain the Rolling Lubricant with desired granularity；
Execute step S2, wherein the Rolling Lubricant with the expectation granularity is subjected to lab analysis, and is measured
The value of the expectation granularity out provides the basic oil formula of the expectation granularity with reverse-direction derivation；
Execute step S3, wherein according to the basic oil formula of acquisition, produce base oil.
Further, referring to fig. 2, the preparation method may also include that in executing step S1, firstly, executable step
S11, wherein the first base oil with design granularity is supplied to rolling scene, and is configured to first Rolling Lubricant.It is preferred that
Ground, the design granularity can be 20 μm, and by the first Rolling Lubricant that the first base oil is configured to can have between
Emulsion stability index (ESI) in 0.2~0.4 range.
Further, the preparation method may also include that after executing step S11, and step S12 can be performed, wherein batch
Roll an appropriate number of rolled piece.
Further, the preparation method may also include that in executing step S12, a variety of rolling parameters can be monitored, with true
As-rolled condition is protected to stablize.Preferably, the rolling parameter may include the ginseng such as the roughness, roll-force and advancing slip value on rolled piece surface
Number.
Further, the preparation method may also include that after executing step S12, step S13 can be performed, wherein rolling
Rolled piece sample is chosen, to measure the roughness on rolled piece surface in production line tail portion processed.
Further, the preparation method may also include that after executing step S13, step S14 can be performed, wherein can root
According to the roughness on the rolled piece surface measured, adjust the granularity of Rolling Lubricant, wherein if the roughness on rolled piece surface compared with
Greatly, then the granularity of Rolling Lubricant can be reduced, and if the roughness on rolled piece surface is smaller, Rolling Lubricant can be improved
Granularity.
Further, the preparation method may also include that execute step S14 in, if the roughness on rolled piece surface compared with
Greatly, then the granularity of Rolling Lubricant can be reduced by adding suitable first base oil, water and emulsifier special；Or such as
The roughness on fruit rolled piece surface is smaller, then can improve the particle of Rolling Lubricant by adding a large amount of first base oil and water
Degree.
Further, the preparation method may also include that after executing step S14, step S15 can be performed, wherein can weigh
Execute step S12, step S13 and step S14 again, to obtain desired rolled piece roughness, and to desired rolled piece roughness
Corresponding Rolling Lubricant sampling, to carry out particle size analysis.
Further, the preparation method may also include that after executing step S15, and step S16 can be performed, wherein if
The granularity of Rolling Lubricant is too low, then can supplement first base oil in right amount, to obtain the rolling with the expectation granularity
Lubricating fluid.
Further, the preparation method may also include that after executing step S16, step S17 can be performed, wherein can be right
The rolled piece of multiple steel grades repeats step S1 and S2, with the Rolling Lubricant basis oil formula that determination is optimal.
Below by taking rolled band steel as an example, the preparation side for the exemplary Rolling Lubricant base oil of the present invention is described in detail one of illustrating
Method.
Firstly, the step S11 in executable step S1.Can there will be the first base oil of design granularity to be supplied to tandem mill
Scene, granularity can be controlled in 20 μm or so, and the ESI for the first Rolling Lubricant that first base oil is made into can be controlled in 0.2~
Between 0.4, i.e. dispersion stability type or semi-stability type emulsion.
In next step, step S12 can be performed.Start normal rolling, assembly grinding machine can grind that stability is highest to roll in batches
Roller, roughness can be constant.
In next step, after starting rolling, the parameters such as observable or monitoring roll-force, advancing slip value, to ensure that as-rolled condition is stablized.
In next step, step S13 can be performed.When mill product is to tandem rolling line tail portion, several samples can be chosen, to strip table
Face carries out roughness concentration.
In next step, step S14 can be performed.
Under normal conditions, the Rolling Lubricant granularity of original state is larger, and plating-out ability is stronger, can be good at shape
It at oil film, lubricates, belt steel surface roughness is high, at this time under as-rolled condition, can carry out the adjustment of granularity reduction.
Typically, in order to ensure Rolling Lubricant system is stablized, after supplement base oil and water, measurement of concetration can be carried out,
The oil mass in system is calculated, optionally adds emulsifier special according to 10.5kg/ tons of dosage.
, whereas if the Rolling Lubricant granularity of original state is smaller, the adjustment of granularity raising can also be carried out.
In next step, after addition, it is recycled half an hour, to ensure that the oil droplet in Rolling Lubricant is fully emulsified, then
Normal rolling, in tandem rolling line tail portion sampling and measuring roughness.
In next step, step S15 can be performed, wherein step S12, step S13 and step S14 are repeated, it is expected
Steel plate roughness, then Rolling Lubricant is sampled, and carry out particle size analysis.
In next step, step S16 can be performed.If emulsifier excessive addition, Rolling Lubricant granularity is too low, causes oil film broken
It splits, when generating rolling defect, base oil is replenished in time, such as can be added according to concentration 1%, dilute emulsifier.
In next step, step S2 can be performed.The Rolling Lubricant that test is obtained carries out lab analysis, measures particle
Degree, reverse-direction derivation provide the basic oil formula of desired granularity.
Finally, executable step S3.It carries out more steel grades, test in batches, best basic oil formula then can be obtained.It
Afterwards, oily factory can be produced in batches, give steel mill's volume shipment.
In short, in the preparation method of exemplary Rolling Lubricant base oil according to the present invention, under as-rolled condition, into
The addition of row emulsifier, to reduce granularity, and tracks steel surface roughness, when reaching target roughness, can stop adjusting.
And Rolling Lubricant can be sampled in real time, then analyzed in laboratory, it can reverse push export Rolling Lubricant base oil
Formula.
Fig. 3 exemplifies the lubricating fluid stability ESI in the preparation method of an exemplary Rolling Lubricant base oil of the invention
Relationship between the surface roughness with steel rolling piece.
Referring to the curve graph in Fig. 3, abscissa ESI, ESI are emulsion stability index, more next from 0~1 stability
It is better, and granularity is bigger, emulsion is more unstable, and granularity is smaller, and emulsion is more stable.Corresponding steel plate roughness is presented
Raised trend after first reducing.When ESI reaches 0.8 or so, optimum state is presented in roughness, that is, can determine emulsion at this time
Granularity.In the example shown in figure 3, the emulsion stability of shadow region is best, and steel plate roughness is minimum.
Test proves that the preparation method of Rolling Lubricant base oil according to an embodiment of the present invention can be by scene rolling profit
The granularity of synovia is adjusted to optimal use state, and test period was can be controlled within 1 month, and fuel feeding batch is can be controlled in 2 times
Within, the rejected product of generation is can be controlled within 100 tons (5 volumes).
It should be noted that, in this document, the terms "include", "comprise" or its any other variant are intended to non-row
His property includes, so that the process, method, article or equipment for including a series of elements not only includes those elements, and
And further include other elements that are not explicitly listed, or further include for this process, method, article or equipment institute it is intrinsic
Element.
Finally, it should be noted that the above examples are only used to illustrate the technical scheme of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (10)
1. a kind of preparation method of Rolling Lubricant base oil, which is characterized in that comprising steps of
Execute step S1, wherein in the rolled piece operation of rolling, by the particle for adjusting Rolling Lubricant in rolling scene dynamic
Degree, so that the granularity of Rolling Lubricant is adjusted to desired use state, to obtain the Rolling Lubricant with desired granularity；
Execute step S2, wherein the Rolling Lubricant with the expectation granularity is subjected to lab analysis, and measures institute
The value of desired granularity is stated, the basic oil formula of the expectation granularity is provided with reverse-direction derivation；
Execute step S3, wherein according to the basic oil formula of acquisition, produce base oil.
2. preparation method as described in claim 1, which is characterized in that further include: in executing step S1,
Firstly, executing step S11, wherein the first base oil with design granularity is supplied to rolling scene, and is configured to just
Secondary Rolling Lubricant, it is preferable that the design granularity is 20 μm, and described is rolled for the first time by what the first base oil was configured to
Lubricating fluid processed has the emulsion stability index (ESI) in 0.2~0.4 range.
3. preparation method as claimed in claim 2, which is characterized in that further include: after executing step S11,
Execute step S12, wherein roll an appropriate number of rolled piece in batches.
4. preparation method as claimed in claim 3, which is characterized in that further include: in executing step S12,
A variety of rolling parameters are monitored, to ensure that as-rolled condition is stablized, it is preferable that the rolling parameter includes the coarse of rolled piece surface
Degree, roll-force and advancing slip value.
5. preparation method as claimed in claim 3, which is characterized in that further include: after executing step S12,
Execute step S13, wherein in rolling line tail portion, rolled piece sample is chosen, to measure the roughness on rolled piece surface.
6. preparation method as claimed in claim 5, which is characterized in that further include: after executing step S13,
Execute step S14, wherein according to the roughness on the rolled piece surface measured, the granularity of Rolling Lubricant is adjusted,
Wherein, if the roughness on rolled piece surface is larger, reduce the granularity of Rolling Lubricant, and if rolled piece surface it is thick
Rugosity is smaller, then improves the granularity of Rolling Lubricant.
7. preparation method as claimed in claim 6, which is characterized in that further include: in executing step S14,
If the roughness on rolled piece surface is larger, by adding suitable first base oil, water and emulsifier special, reduce
The granularity of Rolling Lubricant；Or
If the roughness on rolled piece surface is smaller, by a large amount of first base oil of addition and water, Rolling Lubricant is improved
Granularity.
8. preparation method as claimed in claim 6, which is characterized in that further include: after executing step S14,
Execute step S15, wherein step S12, step S13 and step S14 are repeated, to obtain desired rolled piece roughness,
And Rolling Lubricant corresponding with desired rolled piece roughness is sampled, to carry out particle size analysis.
9. preparation method as claimed in claim 8, which is characterized in that further include: after executing step S15,
Execute step S16, wherein if the granularity of Rolling Lubricant is too small, first base oil is largely supplemented, to be had
There is the Rolling Lubricant of the expectation granularity.
10. preparation method as described in claim 1, which is characterized in that further include: after executing step S16,
Execute step S17, wherein step S1 and S2 are repeated to the rolled piece of multiple steel grades, with the rolling lubrication that determination is optimal
Liquid-based plinth oil formula.
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| 张红烨等: ""冷轧乳化液颗粒度与润滑性能的关系"", 《润滑与密封》 * |
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