CN110832119A - Cleaning accelerant and using method thereof - Google Patents
Cleaning accelerant and using method thereof Download PDFInfo
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- CN110832119A CN110832119A CN201880042847.2A CN201880042847A CN110832119A CN 110832119 A CN110832119 A CN 110832119A CN 201880042847 A CN201880042847 A CN 201880042847A CN 110832119 A CN110832119 A CN 110832119A
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- cleaning agent
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G5/00—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents
- C23G5/02—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents
- C23G5/024—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents containing hydrocarbons
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G5/00—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents
- C23G5/02—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents
- C23G5/028—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents containing halogenated hydrocarbons
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- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
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- Organic Chemistry (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Cleaning By Liquid Or Steam (AREA)
Abstract
A cleaning promoter and a method of using the same are provided. The cleaning accelerator consists of 0.1-1.0 wt% of accelerator and 99-99.9 wt% of cleaning agent. The using method comprises the following steps: preparing an accelerator and a cleaning agent according to a weight ratio; pouring into an ultrasonic cleaning machine for mixing to obtain a cleaning accelerant; putting a first metal piece to be cleaned into the ultrasonic cleaning machine for cleaning; taking out the cleaned first metal piece, and airing or drying the first metal piece in a dust-free environment; and (3) sizing, assembling, pre-tightening and curing the first metal part and the second metal part which are dried or dried in the oxygen-free environment. By reasonably matching the cleaning agent and the accelerator, the problems of over-high curing speed, high shear strength attenuation ratio of the obtained product, initial curing failure and loosening of pre-tightening caused by the influence of metal ion activity on the surface processing process of metal parts caused by the conventional accelerator are solved.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to a cleaning accelerant and a using method thereof.
[ background of the invention ]
When the anaerobic adhesive is coated in metal gaps (such as matching gaps of pipeline threads, plane flanges, round part sets and the like) and is isolated from oxygen (air), free radicals are formed under the catalytic induction action of metal ions, the free radicals initiate the formation of polymer chains, and finally the solid high polymer with excellent sealing and locking characteristics is obtained after solidification. Generally, an accelerator is sprayed before the anaerobic adhesive is applied, so that the curing speed of the anaerobic adhesive is increased. When the curing environment temperature is the same, the addition of the accelerator can activate the metal ions and improve the activity of the metal ions. The curing rate of the glue depends on the kind of product and accelerator.
In the case of a letai promoter, it has the following disadvantages:
1) the existing main types of accelerators used in cooperation with the loctite anaerobic adhesive are as follows: le tai 7091/7471/7649, relatively few. And because the models are few, each accelerator has single curing speed characteristic, and when a customer needs specific curing speeds such as medium and low speeds in the production process, the models can not meet the requirements;
2) the type of the loctite accelerator only can play a role in accelerating curing, and when the surface of a metal part is dirty and the surface of the part is passivated, the adhesive is influenced by abnormal chemical substances, so that the initial curing of the adhesive is ineffective, and the part is loosened.
3) The existing 100% loctite 7091/7471/7649 accelerant brings curing strength after glue bonding: the intensity decays by about 10% to 50%, as shown in fig. 1.
[ summary of the invention ]
In order to solve the defects of the prior art, the invention provides the cleaning accelerator, and by scientifically and reasonably matching the cleaning agent and the accelerator, the problems of insufficient assembly and loosening caused by over-high curing speed of the accelerator with 100% concentration or low curing speed and production efficiency reduction caused by over-assembly are solved; meanwhile, the shear strength attenuation ratio of the 100% concentration accelerator to the bonded product is reduced; and the problems of initial fixation failure and pre-tightening loosening even if 100-concentration accelerator is used due to the generation of chemical substances influencing the activity of metal ions by surface treatment processes such as grinding, rust prevention, stewing and the like in the process of processing metal parts are also solved.
The invention also provides a use method of the cleaning accelerant.
The technical problem to be solved by the invention is realized by the following technical scheme:
a cleaning accelerant comprises the following raw materials in percentage by weight: 0.1-1.0% of accelerator and 99-99.9% of cleaning agent.
In the present invention, the accelerant is a letai 7091 accelerant, a letai 7471 accelerant, or a letai 7649 accelerant.
In the present invention, the cleaning agent is a solvent-based cleaning agent.
In the invention, the solvent cleaning agent is produced by Shenzhen xinjunxiang technology Limited.
In the invention, the solvent cleaning agent is an XJX-829 series cleaning agent.
A method for using the cleaning promoter as described above, comprising the steps of:
(1) preparing an accelerator and a cleaning agent according to the weight percentage;
(2) pouring the prepared accelerator and the cleaning agent into an ultrasonic cleaning machine for mixing to obtain a cleaning accelerator;
(3) putting a first metal piece to be cleaned into the ultrasonic cleaning machine in the step (2) for cleaning;
(4) taking out the cleaned first metal piece, and airing or drying the first metal piece in a dust-free environment;
(5) and (3) sizing, assembling, pre-tightening and curing the first metal part and the second metal part which are dried or dried in the oxygen-free environment.
In the present invention, the temperature of the ultrasonic cleaning machine is set to 40 ± 5 ℃.
In the invention, the mixing time in the step (2) is 10-30 min.
In the invention, the cleaning time in the step (3) is 30-60 min.
In the present invention, the sizing in step (5) is the application of a loctite anaerobic glue.
In the invention, the first metal piece is a metal piece causing poor bonding loosening.
In the invention, the first metal piece and the second metal piece are bonded in a loose fit or a sliding fit manner.
Compared with the prior art, the invention has the following beneficial effects:
the cleaning accelerant is suitable for occasions where the anaerobic adhesive is loosely matched/slidably matched with metal parts to bond, plays a role in improving the curing speed, improves the initial curing speed on the premise of meeting the process assembly, and improves the production efficiency. Meanwhile, by scientifically and reasonably matching the cleaning agent and the accelerator, the problems of void position and looseness caused by assembly failure due to over-high curing speed of the accelerator with 100% concentration or low curing speed and production efficiency reduction are solved; but also reduces the attenuation ratio of the shear strength of the product after bonding due to the accelerator with 100 percent concentration; and the problems of initial fixation failure and pre-tightening loosening even if 100% concentration accelerator is used due to the generation of chemical substances influencing the activity of metal ions by surface treatment processes such as grinding, rust prevention, stewing and the like in the process of processing metal parts are also solved.
[ description of the drawings ]
FIG. 1 shows the effect of 100% Loutah 7091/7471/7649 accelerator on the strength of a steel article, wherein,% of full strength on steel means the total strength of the steel article; no activator refers to No spraying accelerator; activator SF 7091 is spraying lotargy 7091 accelerant, Activator SF 7471 is spraying lotargy 7471 accelerant, Activator SF 7649 is spraying lotargy 7649 accelerant;
FIG. 2 is a comparison of the assembly parts of examples 1 to 3 of the present invention and comparative examples 1 and 2 for a defect rate test;
FIG. 3 is a comparison of the push-out force test of the assembly of example 1 of the present invention and comparative example 1 after full cure;
figure 4 is a push-out force test comparison of the assembly of example 1 of the present invention and comparative examples 1, 2 after different initial set times.
[ detailed description ] embodiments
In the prior art, when two metal pieces need anaerobic adhesive for solidification, some metal pieces are cleaned firstly, then 100% concentration accelerant is sprayed, and finally the anaerobic adhesive is dripped, and some metal pieces are directly sprayed with 100% concentration accelerant and then the anaerobic adhesive is dripped. When the accelerator is specifically applied, the existing accelerator only can play a role in accelerating curing, when the surface of a metal part is dirty, and the surface of the part is passivated, chemical substances brought by abnormality can influence the adhesive, so that the problems of initial curing failure of the adhesive and loosening of the part occur; furthermore, spraying an accelerator (such as loctite 7091/7471/7649 accelerator) at a concentration of 100% will bring about a strength decay of about 10% to 50% to the curing strength after glue bonding, as shown in fig. 1.
In view of the defects of the prior art described in the background, the inventors of the present invention analyzed the problems and verified through a great number of attempts to provide a new cleaning promoter, specifically, the cleaning promoter is composed of the following raw materials in percentage by weight: 0.1-1.0% of accelerator and 99-99.9% of cleaning agent.
The inventor not only solves the problems of void position and looseness caused by the improper assembly due to the over-high curing speed of the accelerator with the concentration of 100% or the problems of low curing speed and production efficiency reduction by scientifically and reasonably matching the cleaning agent and the accelerator; moreover, the addition proportion of the accelerator is low, so that the attenuation proportion of 100% concentration of the accelerator to the shear strength of the bonded product can be effectively reduced; when the surface of the metal part is passivated to bring influence on the viscose by chemical substances, the cleaning agent has a cleaning function, so that the problems of initial fixation failure and pre-tightening loosening even if 100-concentration accelerators are used due to the generation of the chemical substances influencing the activity of metal ions in the surface treatment processes of grinding, rust prevention, stewing and the like in the processing process of the metal part can be solved.
The concentration of the accelerator can be adjusted according to different application occasions, for example, the concentration range of 0.1-0.5% of the accelerator is suitable for precise bonding occasions such as a bearing, and the concentration range of 0.5-1.0% of the accelerator is suitable for non-precise bonding occasions such as a thread.
Notably, the enhancer is a letai 7091 enhancer, a letai 7471 enhancer, or a letai 7649 enhancer, but is not limited thereto. The cleaning agent is preferably but not limited to a solvent cleaning agent, preferably the solvent cleaning agent is a solvent cleaning agent produced by Shenzhen xinjunxiang technology Limited, and more preferably an XJX-829 series cleaning agent produced by Shenzhen xinjunxiang technology Limited.
The present invention will be described in detail below with reference to the accompanying drawings and examples. Examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
For clarity of illustration, the following examples are illustrative of the cured assembly of two metal pieces, a shaft and a bearing, but are not to be construed as limiting the invention.
Example 1
A cleaning accelerant comprises the following raw materials in percentage by weight: 0.1% of a lotita 7649 accelerator and 99.9% of an XJX-829 cleaning agent.
A method for using the cleaning promoter as described above, comprising the steps of:
(1) according to the weight percentage, respectively weighing the Letai 7649 accelerant (0.1 percent by weight) and the XJX-829 cleaning agent (99.9 percent by weight) by using a precision electronic scale;
(2) pouring the lotita 7649 accelerant prepared in the step (1) and the XJX-829 cleaning agent into an ultrasonic cleaning machine, opening the ultrasonic cleaning machine, and mixing the two groups of volumes for about 10min at room temperature (the temperature in the ultrasonic is set to be about 40 +/-5 ℃), so as to obtain the cleaning accelerant;
(3) putting the 2004 motor shaft to be cleaned into the ultrasonic cleaner in the step (2) by using a proper cleaning jig for cleaning for about 30 min;
(4) taking out the cleaned 2004 motor shaft, naturally volatilizing and airing or drying at 80 ℃/10min in a dust-free environment, and then sealing and keeping to be assembled;
(5) and (3) gluing the dried or dried shaft and the bearing (Lontai 648 anaerobic adhesive), assembling, pre-tightening and curing according to a normal process in an oxygen-free environment.
Example 2
A cleaning accelerant comprises the following raw materials in percentage by weight: 0.22% of a lotita 7649 accelerator and 99.78% of an XJX-829 cleaning agent.
A method for using the cleaning promoter as described above, comprising the steps of:
(1) according to the weight percentage, respectively weighing the Letai 7649 accelerant (0.22 percent by weight) and the XJX-829 cleaning agent (99.78 percent by weight) by using a precision electronic scale;
(2) pouring the lotita 7649 accelerant prepared in the step (1) and the XJX-829 cleaning agent into an ultrasonic cleaning machine, opening the ultrasonic cleaning machine, and mixing the two groups of volumes for about 10min at room temperature (the temperature in the ultrasonic is set to be about 40 +/-5 ℃), so as to obtain the cleaning accelerant;
(3) putting the 2004 motor shaft to be cleaned into the ultrasonic cleaner in the step (2) by using a proper cleaning jig for cleaning for about 30 min;
(4) taking out the cleaned 2004 motor shaft, naturally volatilizing and airing or drying at 80 ℃/10min in a dust-free environment, and then sealing and keeping to be assembled;
(5) and (3) gluing the dried or dried shaft and the bearing (Lontai 648 anaerobic adhesive), assembling, pre-tightening and curing according to a normal process in an oxygen-free environment.
Example 3
A cleaning accelerant comprises the following raw materials in percentage by weight: 0.42% of a lotita 7649 accelerator and 99.58% of an XJX-829 cleaning agent.
A method for using the cleaning promoter as described above, comprising the steps of:
(1) according to the weight percentage, the le tai 7649 accelerant (0.42 percent by weight) and the XJX-829 cleaning agent (99.58 percent by weight) are respectively weighed by a precise electronic scale;
(2) pouring the lotita 7649 accelerant prepared in the step (1) and the XJX-829 cleaning agent into an ultrasonic cleaning machine, opening the ultrasonic cleaning machine, and mixing the two groups of volumes for about 10min at room temperature (the temperature in the ultrasonic is set to be about 40 +/-5 ℃), so as to obtain the cleaning accelerant;
(3) putting the 2004 motor shaft to be cleaned into the ultrasonic cleaner in the step (2) by using a proper cleaning jig for cleaning for about 30 min;
(4) taking out the cleaned 2004 motor shaft, naturally volatilizing and airing or drying at 80 ℃/10min in a dust-free environment, and then sealing and keeping to be assembled;
(5) and (3) gluing the dried or dried shaft and the bearing (Lontai 648 anaerobic adhesive), assembling, pre-tightening and curing according to a normal process in an oxygen-free environment.
Comparative example 1
In an anaerobic environment, the 2004 motor shaft is subjected to shaft and bearing sizing (Lontai 648 anaerobic adhesive), assembly pretension and curing according to a normal process.
Comparative example 2
The present embodiment is different from embodiment 1 in that: the cleaning accelerator consists of 100% of loctite 7649 accelerator, and no cleaning agent is added. The application method of the cleaning promoter of the embodiment is as follows:
(1) pouring the promoter of the Lontai 7649 into an ultrasonic cleaning machine, opening the ultrasonic cleaning machine, and mixing the two groups of volumes for about 10min at room temperature (the temperature in the ultrasonic is set to be about 40 +/-5 ℃);
(2) putting a 2004 motor shaft to be cleaned into the ultrasonic cleaner in the step (1) by using a proper cleaning jig for cleaning for about 30 min;
(3) taking out the cleaned 2004 motor shaft, naturally volatilizing and airing or drying at 80 ℃/10min in a dust-free environment, and then sealing and keeping to be assembled;
(4) and (3) gluing the dried or dried shaft and the bearing (Lontai 648 anaerobic adhesive), assembling, pre-tightening and curing according to a normal process in an oxygen-free environment.
The assemblies obtained in examples 1 to 3 and comparative examples 1 and 2 were subjected to a conventional pretensioning performance test (non-destructive test), and specific test data are shown in fig. 2 to 4.
As can be seen from fig. 2, when the cleaning accelerator of the present invention is used for ultrasonic cleaning and then applied with glue for pre-tightening, the loosening defect rate a of the assembly is 0, the loosening defect rate B of the assembly of example 1 is 0, the loosening defect rate B of the assembly of examples 2 and 3 is 1%, and the shaft of comparative example 1 is not subjected to ultrasonic cleaning with the cleaning accelerator, the loosening defect rate a of the assembly of comparative example 1 is as high as 28%, and the loosening defect rate B is 0; the shaft of comparative example 2 was cleaned by ultrasonic cleaning with 100% accelerator, and the assembly of comparative example 2 had a loosening defect rate a of 3.3% and a loosening defect rate B as high as 20%. Therefore, the cleaning accelerator disclosed by the invention is used for cleaning, gluing and pre-tightening, and the cleaning agent has a cleaning function, so that chemical substances which influence the activity of metal ions and are generated by surface treatment processes such as grinding, rust prevention and stewing in the 2004 motor shaft processing process can be cleaned, and the problems of initial setting failure and pre-tightening loosening can be effectively solved. For the 2004 motor shaft tested this time, the preferred concentration of the accelerator in the cleaning accelerator of the present invention is 0.1 wt%, and it can be seen from fig. 2 that when the accelerator concentration is increased, the problem of insufficient assembly position and loosening of the assembly parts due to too fast curing speed is caused. In specific use, the concentration of the accelerator is adjusted according to different metal pieces and the actually required curing speed.
The poor loosening is that the initial bonding can not be realized within the standard operation time of the glue; poor loosening means that the bearing is moved due to the fact that the glue is not assembled in place in time because of too high curing speed.
According to fig. 3, after the assembly parts of example 1 and comparative example 1 are naturally placed for 24H and completely cured, and the shaft and bearing push-out force is verified, the assembly parts ultrasonically cleaned by the cleaning accelerator of the invention can bear higher push-out force, which is obviously improved by about 21% compared with that of comparative example 1.
As can be seen from FIG. 4, the assembly parts of example 1, comparative example 1 and comparative example 2 are pre-tightened for 3min, 8min and 10min for initial curing to verify the push-out force of the shaft and the bearing, and the assembly parts ultrasonically cleaned by the cleaning accelerator of the invention can bear higher push-out force, greatly shorten the initial curing time and obviously improve the working efficiency.
The above-mentioned embodiments only express the embodiments of the present invention, and the description is more specific and detailed, but not understood as the limitation of the patent scope of the present invention, but all the technical solutions obtained by using the equivalent substitution or the equivalent transformation should fall within the protection scope of the present invention.
Claims (11)
1. The cleaning accelerant is characterized by comprising the following raw materials in percentage by weight: 0.1-1.0% of accelerator and 99-99.9% of cleaning agent.
2. The cleaning accelerator according to claim 1, wherein the accelerator is a letai 7091 accelerator, a letai 7471 accelerator or a letai 7649 accelerator.
3. The cleaning accelerator as claimed in claim 1, wherein the cleaning agent is a solvent-based cleaning agent.
4. The cleaning accelerator as claimed in claim 3, wherein the solvent-based cleaning agent is an XJX-829 series cleaning agent.
5. A method of using a cleaning accelerator according to any one of claims 1 to 4, comprising the steps of:
(1) preparing an accelerator and a cleaning agent according to the weight percentage;
(2) pouring the prepared accelerator and the cleaning agent into an ultrasonic cleaning machine for mixing to obtain a cleaning accelerator;
(3) putting a first metal piece to be cleaned into the ultrasonic cleaning machine in the step (2) for cleaning;
(4) taking out the cleaned first metal piece, and airing or drying the first metal piece in a dust-free environment;
(5) and spraying a cleaning promoter on the first and second aired or dried metal pieces in an oxygen-free environment, and then gluing, assembling, pre-tightening and curing.
6. Use according to claim 5, wherein the temperature of the ultrasonic cleaning machine is set to 40 ± 5 ℃.
7. The use method of claim 5, wherein the mixing time in the step (2) is 10-30 min.
8. The use method according to claim 5, wherein the cleaning time in the step (3) is 30-60 min.
9. Use according to any one of claims 5 to 8, characterised in that the sizing in step (5) is the application of a loctite anaerobic glue.
10. Use according to claim 5, characterized in that the first metal part is a metal part causing poor bond release.
11. The method of use of claim 5, wherein the first and second metal pieces are bonded in a loose or slip fit.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2018/113193 WO2020087403A1 (en) | 2018-10-31 | 2018-10-31 | Cleaning accelerant and using method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110832119A true CN110832119A (en) | 2020-02-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201880042847.2A Pending CN110832119A (en) | 2018-10-31 | 2018-10-31 | Cleaning accelerant and using method thereof |
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| Country | Link |
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| CN (1) | CN110832119A (en) |
| WO (1) | WO2020087403A1 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1473902A (en) * | 2003-06-21 | 2004-02-11 | 东风汽车公司 | Anaerobic glue improved base agent and its preparing method |
| CN103319924A (en) * | 2013-07-05 | 2013-09-25 | 广东恒大新材料科技有限公司 | Anaerobic adhesive promoting primer and preparation method thereof |
| CN103953803A (en) * | 2014-05-07 | 2014-07-30 | 广西玉柴机器股份有限公司 | Pre-gluing method for pipeline joint |
| CN107988609A (en) * | 2017-12-20 | 2018-05-04 | 苏州禾川化学技术服务有限公司 | A kind of steel degreasing and rust removal descales cleaning agent |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102533137B (en) * | 2010-12-16 | 2013-10-02 | 湖北回天胶业股份有限公司 | Low-toxicity quick-dry anaerobic adhesive aerosol primer coating and preparation method thereof |
-
2018
- 2018-10-31 CN CN201880042847.2A patent/CN110832119A/en active Pending
- 2018-10-31 WO PCT/CN2018/113193 patent/WO2020087403A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1473902A (en) * | 2003-06-21 | 2004-02-11 | 东风汽车公司 | Anaerobic glue improved base agent and its preparing method |
| CN103319924A (en) * | 2013-07-05 | 2013-09-25 | 广东恒大新材料科技有限公司 | Anaerobic adhesive promoting primer and preparation method thereof |
| CN103953803A (en) * | 2014-05-07 | 2014-07-30 | 广西玉柴机器股份有限公司 | Pre-gluing method for pipeline joint |
| CN107988609A (en) * | 2017-12-20 | 2018-05-04 | 苏州禾川化学技术服务有限公司 | A kind of steel degreasing and rust removal descales cleaning agent |
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| WO2020087403A1 (en) | 2020-05-07 |
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