阅读说明：本技术 一种预镀镍钢电池壳拉伸油及其制备方法 (Nickel pre-plated steel battery shell drawing oil and preparation method thereof ) 是由 李清华 汪小龙 于 2021-07-15 设计创作，主要内容包括：本发明公开至少提供了一种预镀镍钢电池壳拉伸油,由聚异丁烯、硫化烯烃、硫化动物油或硫化植物油、不干性油、合成酯、抗氧化剂、矿物油组成。根据本公开的预镀镍钢电池壳拉伸油,由于采用不干性油,同时加入抗氧化剂,确保油品具备较好的氧化稳定性,不易形成油泥,加工件和机台也不会形成黄袍；另外采用合成酯,氧化稳定性好,润滑性优良,和不干性油可产生协同作用,共同起到油性润滑作用；此外加入了聚异丁烯,增强了产品的粘附性和高温稳定性,在设备高速运转情况下,拉伸瞬间,温度极高,仍可保证拉伸油能够及时快速的吸附在模具和加工件表面,并起到良好的润滑作用；进一步的,产品中加入硫化烯烃和硫化动物油或硫化植物油,在其协同作用下,明显提高产品的极压性,可满足预镀镍钢电池壳拉伸对高极压性的要求。(The invention discloses at least one kind of drawing oil for nickel-plated steel battery case, which consists of polyisobutylene, sulfurized olefin, sulfurized animal oil or sulfurized vegetable oil, non-drying oil, synthetic ester, antioxidant and mineral oil. According to the nickel pre-plated steel battery shell drawing oil disclosed by the invention, due to the adoption of the non-drying oil and the addition of the antioxidant, the oil product is ensured to have better oxidation stability, oil sludge is not easy to form, and a workpiece and a machine table cannot form a yellow robe; in addition, the synthetic ester is adopted, so that the oxidation stability is good, the lubricating property is excellent, and the synthetic ester and the non-drying oil can generate a synergistic effect to jointly play an oil lubricating role; in addition, polyisobutylene is added, so that the adhesion and high-temperature stability of the product are enhanced, and under the condition of high-speed operation of equipment, the temperature is extremely high at the moment of stretching, so that the stretching oil can be still ensured to be timely and rapidly adsorbed on the surfaces of a die and a machined part, and a good lubricating effect is achieved; furthermore, sulfurized olefin and sulfurized animal oil or sulfurized vegetable oil are added into the product, and under the synergistic effect of the sulfurized olefin and the sulfurized animal oil or the sulfurized vegetable oil, the extreme pressure property of the product is obviously improved, and the requirement of the stretching of the nickel pre-plated steel battery shell on the high extreme pressure property can be met.)

1. A drawing oil for the battery case of nickel-plated steel is prepared from polyisobutylene, sulfurized olefin, sulfurized animal or vegetable oil, non-drying oil, synthetic ester, antioxidant and mineral oil.

2. The nickel pre-plated steel battery case drawing oil according to claim 1, characterized in that: the stretching oil for the nickel pre-plated steel battery shell comprises the following components in parts by weight: 2% -10% of polyisobutylene; 0.5 to 5 percent of sulfurized olefin; 2 to 7 percent of vulcanized animal oil or vulcanized vegetable oil; 5% -20% of non-drying oil; 5% -20% of synthetic ester; 0.05 to 1 percent of antioxidant; the balance of mineral oil.

3. The nickel preplated steel battery case drawing oil according to claim 1 or 2, characterized in that: the vulcanized animal oil is vulcanized lard oil; the vulcanized vegetable oil is vulcanized rapeseed oil.

4. The nickel preplated steel battery case drawing oil according to claim 1 or 2, characterized in that: the non-drying oil is an oil which can not be oxidized and dried in the air to form a solid film, and has an iodine value of less than 100.

5. The nickel pre-plated steel battery case drawing oil according to claim 4, wherein: the oil is at least one of lard, palm oil, castor oil and olive oil.

6. The nickel preplated steel battery case drawing oil according to claim 1 or 2, characterized in that: the synthetic ester is at least one of monoester, diester or polyol ester.

7. The nickel pre-plated steel battery case drawing oil according to claim 6, wherein: the monoester is methyl oleate, the diester is diisooctyl adipate, and the polyol ester is trimethylolpropane oleate.

8. The nickel preplated steel battery case drawing oil according to claim 1 or 2, characterized in that: the antioxidant is an alkylphenol antioxidant or an amine antioxidant.

9. A method of making the nickel pre-plated steel battery case drawing oil of claim 1 or 2, the method comprising the steps of:

step S1, adding mineral oil, polyisobutylene, nondrying oil, synthetic ester and antioxidant, heating to 60-65 deg.C, stirring for 20-30min, and mixing;

and step S2, stopping heating, adding sulfurized olefin, sulfurized animal oil or sulfurized vegetable oil, continuing stirring for 15-25min, and mixing uniformly.

Technical Field

The disclosure relates to the field of lubricants of stretch forming processes, in particular to pre-nickel-plated steel battery shell stretch oil and a preparation method thereof.

Background

Along with the development of new energy in China, the new energy automobile drives into a motorway comprehensively, and the development of the new energy automobile becomes an inevitable trend of being out of gear. With the development and proliferation of new energy automobiles, the demand of power batteries is increasing day by day, and the quality of the power battery shell determines the environmental protection performance of the automobiles. The current shell materials of the power battery are generally aluminum and steel. From the multi-angle comparative analysis of market, technique, economy, engineering etc. steel battery shell still will possess great market and position in the future market. The material of the steel battery shell is continuously developed, the nickel preplating material has greater advantages in the aspects of the consistency and the safety of the battery than the original post-plating steel shell, and the plating hardness is higher, so the requirement on the extreme pressure property of the tensile oil is higher. The equipment for producing the steel battery shell is divided into a high-speed machine and a medium-low speed machine, the former high-speed machine is only a Japanese Asahi essence machine, the price of the Asahi essence machine is extremely high, and the low-speed machine occupies a common market. At present, with the continuous improvement of the domestic technical level and the improvement of the precision of domestic equipment and dies, domestic high-speed machines are more and more, and the high-speed machines can gradually replace old medium and low-speed machines due to high speed, high efficiency and low rejection rate. The requirement on drawing oil is higher because of the high punching and drawing speed of the high-speed machine, the drawing oil of the high-speed machine which is matched with the application of the Asahi precision machine in the past only has imported oil products, the domestic high-speed machine has own characteristics in the aspects of oil supply modes and mold design, and the material of the nickel preplating is more and more popular. At present, the lubricant suitable for stretching the domestic high-speed machine and the nickel pre-plated steel battery shell is only an imported product, the price is high, and the oil products of domestic brands cannot meet the requirements at present. In order to be matched with the development and application of the current domestic high-speed machine and the pre-nickel-plated steel battery shell, more economical and practical drawing oil must be developed, and the drawing oil contributes to the development of the current steel battery shell processing industry of the power automobile.

Disclosure of Invention

In order to solve the problems in the related art, the present disclosure provides a nickel pre-plated steel battery case drawing oil and a preparation method thereof.

According to a first aspect of the present disclosure, the present disclosure provides a nickel pre-plated steel battery case drawing oil, which is composed of polyisobutylene, sulfurized olefin, sulfurized animal oil or sulfurized vegetable oil, non-drying oil, synthetic ester, antioxidant, and mineral oil.

According to a specific embodiment of the first aspect of the present disclosure, the content of each component of the drawing oil for the nickel pre-plated steel battery case is as follows: 2% -10% of polyisobutylene; 0.5 to 5 percent of sulfurized olefin; 2 to 7 percent of vulcanized animal oil or vulcanized vegetable oil; 5% -20% of non-drying oil; 5% -20% of synthetic ester; 0.05 to 1 percent of antioxidant; the balance of mineral oil.

According to another specific embodiment of the first aspect of the present disclosure, the sulfurized animal oil is sulfurized lard; the vulcanized vegetable oil is vulcanized rapeseed oil.

According to another specific embodiment of the first aspect of the present disclosure, the non-drying oil refers to an oil that is incapable of oxidative drying in air to form a solid film, and has an iodine value of 100 or less; preferably, the oil is at least one of lard, palm oil, castor oil, olive oil.

According to another specific embodiment of the first aspect of the present disclosure, the synthetic ester is at least one of a monoester, a diester, or a polyol ester; preferably, the mono-ester is methyl oleate, the di-ester is diisooctyl adipate, and the polyol ester is trimethylolpropane oleate.

According to another particular embodiment of the first aspect of the present disclosure, the antioxidant is an alkylphenol antioxidant or an aminic antioxidant; preferably, the alkylphenol type antioxidant is 2, 6-di-tert-butyl-p-cresol, and the amine type antioxidant is N, N' -di-sec-butyl-p-phenylenediamine.

According to a second aspect of the present disclosure, the present disclosure provides a method for preparing a nickel pre-plated steel battery case drawing oil, comprising the following steps:

step S1, adding mineral oil, polyisobutylene, nondrying oil, synthetic ester and antioxidant, heating to 60-65 deg.C, stirring for 20-30min, and mixing;

and step S2, stopping heating, adding sulfurized olefin, sulfurized animal oil or sulfurized vegetable oil, continuing stirring for 15-25min, and mixing uniformly.

The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects:

in the technical scheme provided by the disclosure, due to the adoption of the non-drying oil and the addition of the antioxidant, the oil product is ensured to have better oxidation stability, oil sludge is not easy to form, and a workpiece and a machine table cannot form a yellow robe; in addition, the synthetic ester is adopted, so that the oxidation stability is good, the lubricating property is excellent, and the synthetic ester and the non-drying oil can generate a synergistic effect to jointly play an oil lubricating role; in addition, polyisobutylene is added, so that the adhesion and high-temperature stability of the product are enhanced, and under the condition of high-speed operation of equipment, the temperature is extremely high at the moment of stretching, so that the stretching oil can be still quickly adsorbed on the surfaces of a die and a workpiece in time and can play a good lubricating role; furthermore, sulfurized olefin and sulfurized animal oil or sulfurized vegetable oil are added into the product, and under the synergistic effect of the sulfurized olefin and the sulfurized animal oil or the sulfurized vegetable oil, the extreme pressure property of the product is obviously improved, and the requirement of the stretching of the nickel pre-plated steel battery shell on the high extreme pressure property can be met.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Detailed Description

Hereinafter, exemplary embodiments of the present disclosure will be described in detail so that those skilled in the art can easily implement them.

In the present disclosure, it is to be understood that any numerical range recited herein is intended to include all sub-ranges within that numerical range. For example, a range of "1 to 100" refers to all point values within 1 to 100, i.e., including 1, 1.1, and even less, up to 100, which is a continuous range of values, including every value between the minimum value of 1 and the maximum value of 100. Unless otherwise indicated, the various numerical ranges specified in this disclosure are approximations.

The disclosure is further illustrated by the following examples. The following examples are illustrative only and are not intended to be limiting. All percentages are by weight of the total composition, unless otherwise specified.

It should be further noted that the embodiments and features of the embodiments in the present disclosure may be combined with each other without conflict. The present disclosure is described in detail below with reference to examples.

The present disclosure is made to solve, at least in part, the problems in the prior art that the inventors have discovered.

Example 1:

the nickel pre-plated steel battery shell drawing oil comprises the following components in parts by weight: 2% of polyisobutene, 0.5% of sulfurized olefin, 2% of sulfurized lard, 5% of methyl oleate, 0.05% of 2, 6-di-tert-butyl-p-cresol and 85% of mineral oil.

The preparation method of the pre-nickel-plated steel battery shell drawing oil comprises the following steps:

step S1, adding mineral oil, polyisobutylene, lard, methyl oleate and 2, 6-di-tert-butyl-p-cresol, heating to 60 ℃, stirring for 20min, and mixing uniformly;

and step S2, stopping heating, adding sulfurized olefin and sulfurized lard, continuing stirring for 15min, and uniformly mixing to obtain the catalyst.

Example 2:

the nickel pre-plated steel battery shell drawing oil comprises the following components in parts by weight: 3% of polyisobutylene, 2.5% of sulfurized olefin, 3.5% of sulfurized rapeseed oil, 8% of palm oil, 8% of diisooctyl adipate, 0.4% of 2, 6-di-tert-butyl-p-cresol and 75% of mineral oil.

The preparation method of the pre-nickel-plated steel battery shell drawing oil comprises the following steps:

step S1, adding mineral oil, polyisobutylene, palm oil, diisooctyl adipate and 2, 6-di-tert-butyl-p-cresol, heating to 62 ℃, stirring for 25min, and uniformly mixing;

and step S2, stopping heating, adding the sulfurized olefin and the sulfurized rapeseed oil, continuing stirring for 18min, and uniformly mixing to obtain the catalyst.

Example 3:

the nickel pre-plated steel battery shell drawing oil comprises the following components in parts by weight: 5% of polyisobutylene, 3% of sulfurized olefin, 2.5% of sulfurized lard oil and 2.5% of sulfurized rapeseed oil, 10% of castor oil, 10% of diisooctyl adipate, 0.4% of 2, 6-di-tert-butyl-p-cresol, 0.4% of N, N' -di-sec-butyl-p-phenylenediamine and 66% of mineral oil.

The preparation method of the pre-nickel-plated steel battery shell drawing oil comprises the following steps:

step S1, adding mineral oil, polyisobutylene, castor oil, diisooctyl adipate, 2, 6-di-tert-butyl-p-cresol and N, N' -di-sec-butyl-p-phenylenediamine, heating to 64 ℃, stirring for 28min, and uniformly mixing;

and step S2, stopping heating, adding the sulfurized olefin, the sulfurized lard oil and the sulfurized rapeseed oil, continuing stirring for 20min, and uniformly mixing to obtain the catalyst.

Example 4:

the nickel pre-plated steel battery shell drawing oil comprises the following components in parts by weight: 8% of polyisobutylene, 4% of sulfurized olefin, 6% of sulfurized lard, 15% of olive oil, 15% of trimethylolpropane oleate, 0.8% of N, N' -di-sec-butyl-p-phenylenediamine and 51% of mineral oil.

The preparation method of the pre-nickel-plated steel battery shell drawing oil comprises the following steps:

step S1, adding mineral oil, polyisobutylene, olive oil, trimethylolpropane oleate and N, N' -di-sec-butyl-p-phenylenediamine, heating to 65 ℃, stirring for 30min, and mixing uniformly;

and step S2, stopping heating, adding sulfurized olefin and sulfurized lard, continuing stirring for 22min, and uniformly mixing to obtain the feed additive.

Example 5:

the nickel pre-plated steel battery shell drawing oil comprises the following components in parts by weight: 10% of polyisobutylene, 5% of sulfurized olefin, 7% of sulfurized rapeseed oil, 20% of olive oil, 20% of trimethylolpropane oleate, 1% of 2, 6-di-tert-butyl-p-cresol and 37% of mineral oil.

The preparation method of the pre-nickel-plated steel battery shell drawing oil comprises the following steps:

step S1, adding mineral oil, polyisobutylene, olive oil, trimethylolpropane oleate and 2, 6-di-tert-butyl-p-cresol, heating to 65 ℃, stirring for 30min, and mixing uniformly;

and step S2, stopping heating, adding the sulfurized olefin and the sulfurized rapeseed oil, continuing stirring for 25min, and uniformly mixing to obtain the catalyst.

Comparative example 1:

in the same manner as in example 1, 0.05% of 2, 6-di-t-butyl-p-cresol was not added, and the content of 2, 6-di-t-butyl-p-cresol was replaced with the same content of mineral oil.

Comparative example 2:

as in example 2, only 8% of the diisooctyl adipate was removed and the content of diisooctyl adipate was replaced by an equivalent amount of mineral oil.

Comparative example 3:

just 10% of the castor oil was removed and the castor oil content was replaced by an equivalent amount of mineral oil as in example 2.

Comparative example 4:

as in example 4, only 8% of the polyisobutene is removed, the polyisobutene content being replaced by an equivalent amount of mineral oil.

Comparative example 5:

as in example 1, only 0.5% of the sulfurized olefin was removed, and the sulfurized olefin content was replaced with an equal amount of mineral oil.

Comparative example 6:

as in example 1, only 2% of the lard sulfide was removed, the content of lard sulfide being replaced by an equivalent amount of mineral oil.

The rotary oxygen bomb, the oil sludge, the lubricating property PB value and the extreme pressure PD value of the examples 1 to 5 and the comparative examples 1 to 6 are tested according to SH/T0193, SH/T0565, GB/T3142 and GB/T3142 respectively, and the test results are shown in the following table:

according to the table, the non-drying oil is adopted, and the antioxidant is added, so that the oil product has better oxidation stability, oil sludge is not easy to form, and a workpiece and a machine table cannot form a yellow robe; in addition, the synthetic ester is adopted, so that the oxidation stability is good, the lubricating property is excellent, and the synthetic ester and the non-drying oil can generate a synergistic effect to jointly play an oil lubricating role; in addition, polyisobutylene is added, so that the adhesion and high-temperature stability of the product are enhanced, and under the condition of high-speed operation of equipment, the temperature is extremely high at the moment of stretching, so that the stretching oil can be still quickly adsorbed on the surfaces of a die and a workpiece in time and can play a good lubricating role; furthermore, sulfurized olefin and sulfurized animal oil or sulfurized vegetable oil are added into the product, and under the synergistic effect of the sulfurized olefin and the sulfurized animal oil or the sulfurized vegetable oil, the extreme pressure property of the product is obviously improved, and the requirement of the stretching of the nickel pre-plated steel battery shell on the high extreme pressure property can be met.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.