CN107621536A - A kind of initial and extension sediment the method for testing of additive for lubricant - Google Patents
A kind of initial and extension sediment the method for testing of additive for lubricant Download PDFInfo
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- CN107621536A CN107621536A CN201710977816.3A CN201710977816A CN107621536A CN 107621536 A CN107621536 A CN 107621536A CN 201710977816 A CN201710977816 A CN 201710977816A CN 107621536 A CN107621536 A CN 107621536A
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Abstract
The invention provides a kind of the initial of additive for lubricant and the method for testing of extension sediment, this method needs to carry out in a draughty fume hood.Lid is twisted into conical centrifuge tube in accurate measurement 50ml samples and 50ml heptane first；Test sample is heated to 65.6+5 DEG C；Tool plug centrifuge tube is inverted repeatedly mixes two components；Sample is put into centrifuge, and position opposite adds the sample with test sample balance, can fill water or another sample.Centrifuge 20 minutes, the 1200r/min of rotating speed 800.The volume binding capacity of record BSW is accurate to 0.005 milliliter.Including BSW, the volume of emulsion or dim layer.The volume of observed BSW calculates volume ratio, and is reported as initial precipitation thing.Then centrifuge again 40 minutes and volume ratio is calculated, and be reported as extending sediment.This method is easy to operate, and analysis time is short, and the degree of accuracy is high, and pollution-free, expense is low, does not have any influence to the health of lab technician.
Description
Technical field
The invention belongs to lubricating oil field, it is related to lube oil additive measuring technology, more particularly to a kind of lubricating oil is with adding
Add the initial of agent and extend the method for testing of sediment.
Background technology
Lubricating oil is a kind of technical product, and it is made up of base oil and additive, is widely used in national economy
Each department, industry-by-industry.Wherein additive is mainly used in controlling oil product deposit, extreme-pressure anti-wear, anti-oxidant, anticorrosive, anti-
The performances such as rust, pour point depression, defoaming, emulsion resistance and viscosity index (VI) improvement.With means of transport systems such as mechanical industry, automobile, aircrafts
The continuous innovation of industry, and country's requirement higher to energy-saving and environmental protection etc. in recent years are made, the requirement to Additive Properties is increasingly
It is high.For the lubricating oil for improving metal surface property, it is base oil and polarized, the additive structure that can be adsorbed in surface
Into.Because the Precipitation of additive can have a strong impact on the performance of product.Thus the sediment of additive for lubricant is formulated
Method of testing is of crucial importance.
For a long time, the content for analyzing mechanical admixture in lubricating oil finished product evaluates product stability index.Nothing
Method predicts the instable risk of itself before using certain additive.Additive is often ignored by OIL IN LUBRICATING OIL PRODUCTION producer
Sediment problem, the loss of some clients and loss economically are caused for this.The method cycle length of test mechanical impurity at present,
Cost is high, complex operation, and has used the poisonous toluene for having pollution.Have a strong impact on the health of operating personnel and to experiment
The pollution of room environmental.By the end of currently there are no it is a kind of to additive for lubricant sediment test method.
The content of the invention
The present invention is directed to the problem of above-mentioned, there is provided a kind of initial and extension sediment the test of additive for lubricant
Method.
In order to achieve the above object, the technical solution adopted by the present invention is,
A kind of initial and extension sediment the method for testing of additive for lubricant, specifically includes following steps：
1）Accurate measurement obtains the sample and heptane of isometric(al), and sample and heptane are added in conical centrifuge tube；
2）Sample and heptane are done and heated；
3）Inverted-cone shape centrifuge tube repeatedly so that sample and heptane are sufficiently mixed, that is, obtain test sample；
4）Centrifugal treating is done to test sample, and the volume binding capacity for recording BSW is accurate to 0.005 milliliter, it was observed that
BSW volume, calculate volume ratio, and be reported as initial precipitation thing；
5）Volume ratio is calculated in last centrifuge again 40 minutes, calculates volume ratio according to the volume of reading, and be reported as extending
Sediment；
The volume of the conical centrifuge tube is sample accommodating and heptane volume sum.
Preferably, the scale section of the conical centrifuge tube includes high range section and down scale section, the high range section
Spacing is 0.05ml, and the spacing of the down scale section is 0.005ml.
Preferably, the step 2）In sample and heptane do and heat in baking oven, its heating-up temperature is 65.6
±5℃。
Preferably, the step 4）In centrifugation time be 20min, rotating speed 800-1200r/min.
Preferably, the step 5）In centrifugation time be 40min, rotating speed 800-1200r/min.
Preferably, the opposite of the sample is placed with the balance supplement being placed on centrifugation apparatus.
Preferably, the balance supplement is water or another sample.
Compared with prior art, the advantages and positive effects of the present invention are,
1st, the method for testing of offer of the invention is easy to operate, and analysis time is short, and the degree of accuracy is high, and pollution-free, expense is low, to chemical examination
The health of member does not have any influence.
Embodiment
In order to be more clearly understood that the above objects, features and advantages of the present invention, with reference to embodiment to this hair
It is bright to be described further.It should be noted that in the case where not conflicting, the feature in embodiments herein and embodiment can
To be mutually combined.
Many details are elaborated in the following description to facilitate a thorough understanding of the present invention, still, the present invention may be used also
To be implemented using other modes described here are different from, therefore, the present invention is not limited to the specific of specification described below
The limitation of embodiment.
Embodiment 1, it is an object of the invention to provide the survey of a kind of the initial of additive for lubricant and extension sediment
Method for testing, with easily and fast, Accurate Determining go out the volume ratio of additive sediment in dissolving medium.So as to evaluate addition
There is the risk of sediment after use in agent.The present invention test the step of be:(1) accurate measurement 50ml samples and 50ml heptane
Into conical centrifuge tube, lid is twisted, wherein 100ml conical centrifuge tubes scale requires that 0-0.05ml is subdivided into minimum scale
0.005ml.(2) test sample is heated to 65.6+5 DEG C（Baking oven can be used as constant temperature bath）.(3) tool plug centrifugation is inverted repeatedly
Pipe mixes two components, until well mixed.（4）Sample is put into centrifuge, and position opposite adds the sample with test sample balance
Product, water or another sample can be filled.Centrifuge 20 minutes, rotating speed 800-1200r/min.Record BSW
Volume binding capacity be accurate to 0.005 milliliter.Including BSW, the volume of emulsion or dim layer.Observed is heavy
Starch and the volume of water calculate volume ratio, and are reported as initial precipitation thing.（5）Then centrifuge again 40 minutes and volume is calculated
Than, and be reported as extending sediment.
Sediment volume than computational methods it is as follows：
N1=(v0+v1+v2)*100%/V (1)
N2=(V0+V1+V2)*100%/V (2)
(1) formula is initial precipitation thing calculation formula；(2) formula is extension sediment calculation formula.Wherein：
N1 is initial precipitation thing.
N2 is extension sediment
v0For the volume of sediment after centrifuge 20 minutes
v1For the volume of water after centrifuge 20 minutes
v2For the volume of emulsion after centrifuge 20 minutes
V0 is the volume of centrifuge sediment after 40 minutes
V1 is the volume of centrifuge water after 40 minutes
V2 is the volume of centrifuge emulsion after 40 minutes
Clearly for be related to those skilled in the art can to test temperature of the present invention, using solvent and centrifugation time
It is modified with rotating speed without departing from meaning of the present invention and use range.So, if these changes of the present invention belong to
Within the scope of claim and its equivalent technologies, then the present invention is also intended to including these are changed.
The above described is only a preferred embodiment of the present invention, being not the limitation for making other forms to the present invention, appoint
What those skilled in the art changed or be modified as possibly also with the technology contents of the disclosure above equivalent variations etc.
Effect embodiment is applied to other fields, but every without departing from technical solution of the present invention content, the technical spirit according to the present invention
Any simple modification, equivalent variations and the remodeling made to above example, still fall within the protection domain of technical solution of the present invention.
Claims (7)
1. initial and extension sediment the method for testing of a kind of additive for lubricant, it is characterised in that specifically include following
Step：
Accurate measurement obtains the sample and heptane of isometric(al), and sample and heptane are added in conical centrifuge tube；
Sample and heptane are done and heated；
Inverted-cone shape centrifuge tube repeatedly so that sample and heptane are sufficiently mixed, that is, obtain test sample；
Centrifugal treating is done to test sample, and the volume binding capacity for recording BSW is accurate to 0.005 milliliter, it was observed that
The volume of BSW, volume ratio is calculated, and be reported as initial precipitation thing；
Volume ratio is calculated in last centrifuge again 40 minutes, and volume ratio is calculated according to the volume of reading, and it is heavy to be reported as extension
Starch；
The volume of the conical centrifuge tube is sample accommodating and heptane volume sum.
2. a kind of initial and extension sediment the method for testing of additive for lubricant according to claim 1, it is special
Sign is that the scale section of the conical centrifuge tube includes high range section and down scale section, and the spacing of the high range section is
0.05ml, the spacing of the down scale section is 0.005ml.
3. a kind of initial and extension sediment the method for testing of additive for lubricant according to claim 1, it is special
Sign is, the step 2）In sample and heptane do and heat in baking oven, its heating-up temperature is 65.6 ± 5 DEG C.
4. a kind of initial and extension sediment the method for testing of additive for lubricant according to claim 1, it is special
Sign is, the step 4）In centrifugation time be 20min, rotating speed 800-1200r/min.
5. a kind of initial and extension sediment the method for testing of additive for lubricant according to claim 1, it is special
Sign is, the step 5）In centrifugation time be 40min, rotating speed 800-1200r/min.
6. a kind of initial and extension sediment the method for testing of additive for lubricant according to claim 1, it is special
Sign is that the opposite of the sample is placed with the balance supplement being placed on centrifugation apparatus.
7. a kind of initial and extension sediment the method for testing of additive for lubricant according to claim 6, it is special
Sign is that the balance supplement is water or another sample.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710977816.3A CN107621536A (en) | 2017-10-19 | 2017-10-19 | A kind of initial and extension sediment the method for testing of additive for lubricant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710977816.3A CN107621536A (en) | 2017-10-19 | 2017-10-19 | A kind of initial and extension sediment the method for testing of additive for lubricant |
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| CN107621536A true CN107621536A (en) | 2018-01-23 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN88101188A (en) * | 1987-02-12 | 1988-08-24 | 三井石油化学工业株式会社 | Lubricating oil composition |
| CN102753665A (en) * | 2010-02-12 | 2012-10-24 | 吉坤日矿日石能源株式会社 | Lubricant additive composition |
| CN104762125A (en) * | 2015-02-10 | 2015-07-08 | 山东源根石油化工有限公司 | Engine lubricating oil |
| CN105505522A (en) * | 2016-01-29 | 2016-04-20 | 郑州人造金刚石及制品工程技术研究中心有限公司 | Lubricating oil additive containing nano diamond alkenes and preparation method of lubricating oil additive |
| CN106590816A (en) * | 2016-12-09 | 2017-04-26 | 韩喜梅 | Preparation of lubricant additive with good stabilization effect and testing method thereof |
-
2017
- 2017-10-19 CN CN201710977816.3A patent/CN107621536A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN88101188A (en) * | 1987-02-12 | 1988-08-24 | 三井石油化学工业株式会社 | Lubricating oil composition |
| CN102753665A (en) * | 2010-02-12 | 2012-10-24 | 吉坤日矿日石能源株式会社 | Lubricant additive composition |
| CN104762125A (en) * | 2015-02-10 | 2015-07-08 | 山东源根石油化工有限公司 | Engine lubricating oil |
| CN105505522A (en) * | 2016-01-29 | 2016-04-20 | 郑州人造金刚石及制品工程技术研究中心有限公司 | Lubricating oil additive containing nano diamond alkenes and preparation method of lubricating oil additive |
| CN106590816A (en) * | 2016-12-09 | 2017-04-26 | 韩喜梅 | Preparation of lubricant additive with good stabilization effect and testing method thereof |
Non-Patent Citations (5)
| Title |
|---|
| 刘新华等: "《节能监测服务技术体系建设与节能管理政策法规及标准规范实务全书 一至五册》", 31 August 2005 * |
| 宋开财等: "烯基丁二酸对汽轮机油乳状液稳定性的影响", 《石油炼制与化工》 * |
| 宋立磊等: "复配表面活性剂对纳米粒子在润滑油中分散稳定性的影响", 《润滑与密封》 * |
| 易书理等: "纳米LaF3 在润滑油中的分散稳定性对其摩擦学性能的影响", 《华东理工大学学报（自然科学版）》 * |
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Application publication date: 20180123 |