CN105220198B - A kind of acid-alkali-corrosive-resisting light metal material elastomer and its manufacturing process - Google Patents
A kind of acid-alkali-corrosive-resisting light metal material elastomer and its manufacturing process Download PDFInfo
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- CN105220198B CN105220198B CN201510687409.XA CN201510687409A CN105220198B CN 105220198 B CN105220198 B CN 105220198B CN 201510687409 A CN201510687409 A CN 201510687409A CN 105220198 B CN105220198 B CN 105220198B
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Abstract
The invention discloses a kind of acid-alkali-corrosive-resisting light metal material elastomer and its manufacturing process, it is characterised in that the technique comprises the following steps：1）The cleaning of elastomer；2）Electrolyte quota；3）Differential arc oxidation；4）Surface of elastomer cleans；5）Kiss-coating solidifies.The elastomer, it is characterized in that, including light metal elastomer matrix, ceramic film and epoxy resin layer, described ceramic film be covered on whole elastomer matrix surface；Described epoxy resin layer is covered on whole ceramic film surface.This elastomer technique is simple and convenient to operate, good economy performance, significantly shorten after road paster process；This elastomer has the advantages of simple in construction, easily manufactured, high sensitivity, corrosion resistance are strong, precision is high, and in the more rugged environment such as strong acid and strong base, still keeps the monopolizing characteristic of its acid-alkali-corrosive-resisting.
Description
Technical field
The present invention relates to a kind of strain gauge transducer elastomer and its manufacturing process, specifically a kind of acid-alkali-corrosive-resisting is gently golden
Belong to elastomer and its manufacturing process.
Background technology
At present, the application of strain gauge transducer is more and more extensive, particularly the application of resistance strain type sensor, is flying
Machine, steamer, automobile, weaving, chemical industry etc. industry, either light industry or heavy industry play an important role invariably.Electricity
Strain gauge transducer is hindered using resistance strain gage as sensing element, and the mechanically deform of elastomer is converted into electric signal, realizes physics
Measure the conversion of electric signal.Therefore, elastomer design and selection it is particularly important to the combination property of strain gauge transducer.With
The continuous development of modern industry, the application scenario of strain gauge transducer is ever-changing, for different environment from different
Elastomer, to give full play to the effect of the actual effect of strain gauge transducer.Correspondingly the requirement to elastomer combination property also increases therewith
By force.Special chemical industry requires particularly special to the combination property of elastomer, wherein extremely concerned is the corrosion resistance of elastomer.
And existing technology still can not more generally solve the serious consequence that chemical attack is brought.Due to chemical plant, there is a large amount of
The liquid such as strong acid, highly basic, gas, so that exposed being corroded with the elastomer of acid, akaline liquid or gas outside, shadow
The output performance and reliable operation degree of sensor are rung, while there is serious potential safety hazard.
The content of the invention
In view of the above-mentioned deficiencies in the prior art, it is an object of the present invention to and provide a kind of acid-alkali-corrosive-resisting light metal material elasticity
Body and its manufacturing process.This manufacturing process is simple and convenient to operate, good economy performance, significantly shorten after road paster process；This bullet
Property body has the advantages of simple in construction, easily manufactured, high sensitivity, corrosion resistance are strong, precision is high, and strong acid and strong base etc. compared with
In rugged environment, still to keep the monopolizing characteristic of its acid-alkali-corrosive-resisting.
Realizing the technical scheme of the object of the invention is：
A kind of acid-alkali-corrosive-resisting light metal material elastomer, including light metal elastomer matrix, ceramic film and asphalt mixtures modified by epoxy resin
Lipid layer, described ceramic film are covered on whole elastomer matrix surface；Described epoxy resin layer is covered in whole ceramics
On film surface.
The light metal elastomer matrix is aluminium alloy, magnesium alloy, titanium alloy light metal material.
The ceramic film is Micro-Arc Oxidized Ceramic Coating.
The ceramic film directly can paste foil gauge on ceramic film surface without polishing, sandblasting by bonding agent.
The ceramic film surface is covered with the micropore that diameter does not wait, and is easy to binding agent to enter in micropore, promotes binding agent pair
Foil gauge produces stronger cohesive force, effectively reduces strain transfer error.
The ceramic film thickness is 10 μm -100 μm, and surface roughness is 2-6 μm.
Preferable ceramic film thickness is 40 μm, and surface roughness is 3 μm.So have that layer is thin, surface roughness is moderate
The advantages of, effectively reduce the error next in response to transfer tape is become.
The ceramic film has stronger acid-alkali-corrosive-resisting.
The ceramic film hardness is HV680-800.
Preferable ceramic film hardness is HV750.
Above-mentioned acid-alkali-corrosive-resisting light metal material elastomer technique, comprises the following steps：
Elastomer cleans：First surface of elastomer is cleaned with absolute ethyl alcohol, then carried out with acetone or aviation gasoline
Cleaning, washes of absolute alcohol is finally used again, ensure surface of elastomer without greasy dirt and dust；
Electrolyte quota：Micro-arc oxidation electrolyte is prepared by following weight, and is stirred：Sodium metaaluminate 30-
35g/L, sodium hydroxide 2-3g/L, disodium ethylene diamine tetraacetate 2.5-3.5g/L, hydrogen peroxide 15-18mL, potassium permanganate 2.5g/
L, it is set fully to dissolve with glass bar stirring, the pH values of electrolyte are 9.5-10.0, stand 30-50 minutes；
Differential arc oxidation：Clean elastomer is connected with screwed electrode, applies AC pulse power supply, is continued
Aoxidize 30-32 minutes；
Surface of elastomer cleans：Elastomer after the completion of differential arc oxidation is cleaned with pure water, it is then clear with absolute ethyl alcohol
Wash, ensure elastomer and the electroless liquid of surface ceramii layer；
Kiss-coating solidifies：Elastomer is sling using electrode, in unstrained area's brush last layer 20-50 μ m-thicks of ceramic film
Epoxy resin, solidify 24 hours at room temperature.Epoxy resin is fully infiltrated into ceramic membrane micropore, can play the work of protection ceramic membrane
With.
This manufacturing process is simple and convenient to operate, good economy performance, significantly shorten after road paster process；This elastomer tool
There is the advantages of simple in construction, easily manufactured, high sensitivity, corrosion resistance are strong, precision is high, and it is more severe in strong acid and strong base etc.
Environment in, still keep the monopolizing characteristic of its acid-alkali-corrosive-resisting.
Brief description of the drawings
Fig. 1 is the process flow diagram of embodiment；
Fig. 2 is embodiment elastomer section structure diagram.
In figure, the epoxy resin layer of 1. elastomer matrix, 2. ceramic film 3..
Embodiment
Present invention is further elaborated with reference to the accompanying drawings and examples, but is not limitation of the invention.
Embodiment：
Reference picture 2, a kind of acid-alkali-corrosive-resisting light metal material elastomer, including light metal elastomer matrix 1, ceramic film
2 and epoxy resin layer 3, described ceramic film 2 be covered on the whole surface of elastomer matrix 1；Described epoxy resin layer 3 covers
Cover on the whole surface of ceramic film 2.
The elastomer matrix 1 is aluminium alloy, magnesium alloy, titanium alloy light metal material.
The ceramic film 2 is Micro-Arc Oxidized Ceramic Coating.
The ceramic film 2 can be directly in the surface mount foil gauge of ceramic film 2 without polishing, sandblasting.
The surface of ceramic film 2 is covered with the micropore that diameter does not wait, and the micropore is that oxide melts in micro-arc oxidation process
Change the spilling with differential of the arc channel gas and formed, its size is 2-6 μm, is easy to binding agent to enter in micropore, promotes binding agent pair
Foil gauge produces stronger cohesive force, effectively reduces strain transfer error.
Ceramic film thickness is 40 μm, and surface roughness is 3 μm.So there is the advantages of layer is thin, surface roughness is moderate,
Effectively reduce the error next in response to transfer tape is become.
The ceramic film has stronger acid-alkali-corrosive-resisting.
Ceramic film hardness is HV750.
As shown in figure 1, above-mentioned acid-alkali-corrosive-resisting light metal material elastomer technique, comprises the following steps：
The cleaning of elastomer：First surface of elastomer is cleaned with absolute ethyl alcohol, then entered with acetone or aviation gasoline
Row cleaning, finally uses washes of absolute alcohol again, ensures surface of elastomer without greasy dirt and dust；
Electrolyte quota：Micro-arc oxidation electrolyte is prepared by following weight, and is stirred：Sodium metaaluminate 30-
35g/L, sodium hydroxide 2-3g/L, disodium ethylene diamine tetraacetate 2.5-3.5g/L, hydrogen peroxide 15-18mL, potassium permanganate 2.5g/
L, it is set fully to dissolve with glass bar stirring, the pH values of electrolyte are 9.5-10.0；Stand 30-50 minutes；
Differential arc oxidation：Clean elastomer is connected with screwed electrode, applies AC pulse power supply, exchange
The parameter of the pulse power is：Forward voltage 420-600V, negative voltage 200-250V, current density 22-25A/dm2, frequency
For 600-700Hz, dutycycle 10-30%, continued oxidation 30-32 minutes；
Surface of elastomer cleans：Elastomer after the completion of differential arc oxidation is cleaned with pure water, it is then clear with absolute ethyl alcohol
Wash, ensure elastomer and the electroless liquid of surface ceramii layer；
Kiss-coating solidifies：Elastomer is sling using electrode, in the epoxy resin of unstrained area's brush last layer 20-50 μ m-thicks,
Solidify 24 hours at room temperature.
Claims (4)
1. a kind of acid-alkali-corrosive-resisting light metal material elastomer, it is characterized in that, including light metal elastomer matrix, ceramic film and
Epoxy resin layer, described ceramic film are covered on whole elastomer matrix surface；Described epoxy resin layer is covered in pottery
In the unstrained area of porcelain film surface, the ceramic film is Micro-Arc Oxidized Ceramic Coating, the ceramic film thickness is 10 μm-
100 μm, surface roughness is 2-6 μm, and the ceramic film hardness is HV680-800.
2. acid-alkali-corrosive-resisting light metal material elastomer according to claim 1, it is characterised in that the ceramic membrane thickness
Spend for 40 μm, surface roughness is 3 μm.
3. acid-alkali-corrosive-resisting light metal material elastomer according to claim 1, it is characterised in that the ceramic film is hard
Spend for HV750.
4. a kind of acid-alkali-corrosive-resisting light metal material elastomer technique, it is characterised in that comprise the following steps：Elastomer
Cleaning：First surface of elastomer is cleaned with absolute ethyl alcohol, then cleaned with acetone or aviation gasoline, finally uses nothing again
Water-ethanol cleans；
Electrolyte quota：Micro-arc oxidation electrolyte is prepared by following weight, and is stirred：Sodium metaaluminate 30-35g/L,
Sodium hydroxide 2-3g/L, disodium ethylene diamine tetraacetate 2.5-3.5g/L, hydrogen peroxide 15-18mL, potassium permanganate 2.5g/L, use glass
The stirring of glass rod makes it fully dissolve, and the pH values of electrolyte are 9.5-10.0；Stand 30-50 minutes；
Differential arc oxidation：Clean elastomer is connected with screwed electrode, applies AC pulse power supply, continued oxidation
30-32 minutes；
Surface of elastomer cleans：Elastomer after the completion of differential arc oxidation is cleaned with pure water, then with washes of absolute alcohol, protected
Demonstrate,prove elastomer and the electroless liquid of surface ceramii layer；
Kiss-coating solidifies：Elastomer is sling using electrode, in the epoxy resin of unstrained area's brush last layer 5-10 μ m-thicks, in room temperature
Lower to solidify 24 hours, in differential arc oxidation step, the parameter of AC pulse power supply is：Forward voltage 420-600V, negative voltage
200-250V, current density 22-25A/dm2, frequency 600-700HZ, dutycycle 10-30%.
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| CN111361234B (en) * | 2020-03-11 | 2022-05-03 | 沈阳和世泰通用钛业有限公司 | Titanium alloy ceramic composite material and preparation method thereof |
| CN112809319A (en) * | 2020-12-28 | 2021-05-18 | 惠州市正合智能科技有限公司 | Acid and alkali corrosion resistant light metal material elastomer and manufacturing process thereof |
| CN113088966B (en) * | 2021-03-31 | 2023-05-23 | 中国兵器科学研究院宁波分院 | Magnesium alloy composite coating and preparation method thereof |
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