CN1132266A - Supersonic fast thermal soaking plating - Google Patents
Supersonic fast thermal soaking plating Download PDFInfo
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- CN1132266A CN1132266A CN 95110684 CN95110684A CN1132266A CN 1132266 A CN1132266 A CN 1132266A CN 95110684 CN95110684 CN 95110684 CN 95110684 A CN95110684 A CN 95110684A CN 1132266 A CN1132266 A CN 1132266A
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Abstract
A hot-dip plating technique using ultrasonic wave to treat surface of material is characterized by that during hot-dip plating, power ultrasonic wave is used to clean the surface of workpiece to be hot-dipped by means of ultrasonic cavitation and sound pressure, resulting in removal of dirty impurities and metallic corrosive substances, improvement on wettability between molten metal and substrate to be hot-dipped, and speeding up their reaction. Its advantages include short dipping period, high quality of dipped layer, and low cost.
Description
The present invention relates to a kind of material surface coating treatment technology.
Hot dip process is that plating piece is immersed in the molten metal, and insulation for some time takes out and makes its surface plate the method that molten metal carries out surfacecti proteon and surface strengthening.The technology of existing iron and steel hot dip aluminum plating, zinc or its alloy is flux method or oxidation reduction process mostly.Flux method claims plating assistant agent method again, its process characteristic is the surface preparation that needs to derust, clean, soak through alkali cleaning oil removing, cleaning, pickling a series of strictnesses such as plating assistant agent, drying before the workpiece plating, these pretreatment process are keys of flux method hot dip process, and it is determining the success or failure and the quality of immersion plating.Oxidation reduction process claims the Sendzimir method again.Be a kind of new technology of having cancelled alkali cleaning, pickling and having helped surface preparations such as plating, be characterized in making earlier steel to make surface oxidation, at high temperature zone of oxidation is reduced into iron again with hydrogen by the preheating oven of oxidizing atmosphere.In actual production process, there is following shortcoming in these two kinds of or immersions:
(1) need before the iron and steel plating to plate or the pyro-oxidation-reduction pre-treatment through loaded down with trivial details and strict deoiling, eliminate rust, help, operation is many, the occupied ground area is big.
(2) coated metal and combining of steel matrix depend on both spontaneous wetting and surface chemical reactions, and the time of immersion plating is long, and brittle compound layer is thicker in the coating.
(3) flux method production efficiency is low, and unstable product quality has " three wastes " and pollutes in the pre-treatment.
(4) the oxidation reduction process facility investment is big, the processing requirement height, and matrix strength greatly descends when high temperature (850 ℃) reduction is handled.
The object of the present invention is to provide a kind of immersion plating time short, quality of coating good, facility investment is few, technology is simple, wide adaptability, and can omit or simplify the supersonic fast thermal soaking plating technology of pretreatment process.
Technical scheme of the present invention is that power ultrasonic is introduced the hot dip process process, makes by the plating material to do cleaning (do not have floating rust, foreign material) slightly or directly be dipped in quick immersion plating in molten metal ultrasonication under without pre-treatment.
The present invention is the principle that power ultrasonic and hot dip process process combine: power ultrasonic is that the energy that utilizes ultrasonic vibration to form changes some physics, chemistry and biological nature or the state of material, the technology that this change process is accelerated, power ultrasonic can produce a series of mechanics, calorifics, chemistry and electrical effects or the like when propagating in medium.A kind of vital role that occurs in liquid medium is cavatition, and localized hyperthermia's high pressure that cavitation produced produces partial spot erosion effect to solid surface, promotes particle and collides mutually, thereby can produce cleaning, pulverizing, effect such as compound.Therefore when hot dip process, introduce ultrasonic, can remove plating piece remained on surface bubble, dirt and oxide inclusion, destroy plating piece and molten metal surface oxide film, improve molten metal and the wettability of being plated matrix surface, promote both to react and compound rapidly, shorten the immersion plating time greatly, can remove pretreatment process that has loaded down with trivial details strictness in the technology now and the various shortcomings that overcome the traditional hot immersion plating technology simultaneously from.
Technology of the present invention is simple, easy control of process conditions.For firm processing or the surface of doing cleaning slightly do not have floating rust, plaster foreign material by the plating material, need not pre-treatment and directly immerse or, be the quick immersion plating technology of a kind of single stage method through getting final product 2～3 seconds in the ultrasonic coating bath.Because immersion plating speed is fast, the brittle compound layer in the coating is thin, so ductility of electrodeposited film is good, is convenient to follow-up deformation processing, and the reduction of alloy layer thickness simultaneously also makes and produces even, the thin hot-dip coated possibility that becomes.Thickness of coating can be controlled by adjusting molten metal temperature, plating piece draw speed, ultrasonic power and plating aftertreatment technology.
Realize that processing unit of the present invention is also very simple, except that the heating installation and coating bath of fusion metal, increase supersound process equipment and be ultrasonic-frequency power supply, ultrasonic transducer, horn and get final product.Ultrasonic-frequency power supply can produce the ultrasonic frequency electric energy, and ultrasonic transducer can be converted to ultrasonic energy with this ultrasonic frequency electric energy, by horn the energy of ultrasonic vibration is amplified at last and passes to molten metal.Simple in structure, the less investment of whole plant is easy to penetration and promotion.
Further specify the present invention below in conjunction with drawings and Examples.
Fig. 1 is the ultrasonic quick continuous hot dip aluminum device synoptic diagram of a kind of enforcement steel wire.
Device for carrying out said as shown in Figure 1 comprises digital temperature control table (1), transverter (3), horn (2), external-heat aluminum-plated pot (5) and ultrasonic-frequency power supply (12), wherein ultrasonic-frequency power supply (12) connects transverter (3) by lead, transverter (3) is fixed on the support (11), there is water-cooled tube (4) top, and horn (2) is placed in aluminum-plated pot (5) diapire.Resistance wire 7 and lagging material (8) are arranged outside the aluminum-plated pot (5).Technological process is that the connection power supply is opened water coolant simultaneously earlier, when treating the metallic aluminium fusing and being stabilized in 700 ℃, drives ultrasonic-frequency power supply (12), and steel wire (9) is drawn through another guide deflection sheave down through horn (2) end is ultrasonic by guide deflection sheave (6) in the aluminium liquid (10) again.Steel wire elapsed time in aluminium liquid was 3 seconds, cooling back aluminium coated surfacing light, and good with matrix bond, tack meets the ASTM-A783 standard, and Aluminium Plated Steel Wire toughness is fine, and strength degradation is seldom.
The present invention, not only fits by the wide adaptability of plating material and coating material than traditional handicraft The fast thermal soaking plating aluminium, zinc, the rare earth aluminium that are used for the metal materials such as steel wire, steel band, steel-iron components Alloy, alumin(i)um zinc alloy are such as lower metals of fusing point such as 55% alumin(i)um zinc alloy, Galfan alloys, also Applicable to graphite, ceramic matrix such as aluminium oxide, carborundum, silicon nitride, boron nitride, PTC Compound Deng with above-mentioned coated metal.
Compare with existing technology, the present invention have the immersion plating time short, quality of coating good, equipment is thrown Biography can be omitted or simplify to the advantages such as money less, floor space is little, technological requirement is low, applicability is wide Loaded down with trivial details and strict pretreatment process in the system technology significantly improves the quality of production and efficient, is easy to Penetration and promotion.
Claims (4)
1, a kind of supersonic fast thermal soaking plating technology that material surface is carried out the coating processing is characterized in that power ultrasonic is introduced in the hot dip process process, makes by the immersion plating fast in the molten metal under the ultrasonication of plating material.
2, technology according to claim 1 is characterized in that the pre-treatment that need not alkali cleaning, pickling before the plating piece plating, help loaded down with trivial details strictnesses such as plating or pyro-oxidation-reduction, as long as the surface does not have floating rust, foreign material.
3, technology according to claim 1 is characterized in that the coating material that is suitable for comprises that aluminium, zinc, zinc alloy, aluminium alloy etc. are than low melting point metal.
4, technology according to claim 1 is characterized in that the material that plated that is suitable for comprises iron and steel, graphite, pottery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95110684 CN1132266A (en) | 1995-03-25 | 1995-03-25 | Supersonic fast thermal soaking plating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95110684 CN1132266A (en) | 1995-03-25 | 1995-03-25 | Supersonic fast thermal soaking plating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1132266A true CN1132266A (en) | 1996-10-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95110684 Pending CN1132266A (en) | 1995-03-25 | 1995-03-25 | Supersonic fast thermal soaking plating |
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| CN (1) | CN1132266A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1048761C (en) * | 1997-08-20 | 2000-01-26 | 中国科学院金属腐蚀与防护研究所 | High-temperature ultrasonic immersion plating method for metal surface |
| CN108655527A (en) * | 2017-04-01 | 2018-10-16 | 广东工业大学 | A kind of ultrasonic wave is without brazing flux aluminum pipe brazing method and device |
| CN110049813A (en) * | 2016-12-12 | 2019-07-23 | 伊苏瓦尔肯联铝业 | Improve liquid metal to the method for the wetting on the surface of solid substrate |
| CN113166915A (en) * | 2018-11-06 | 2021-07-23 | 日本制铁株式会社 | Hot dip coating method |
| CN114000079A (en) * | 2021-11-02 | 2022-02-01 | 东莞市金瑞五金股份有限公司 | End face copper-coating process of copper-steel composite reel pipe |
-
1995
- 1995-03-25 CN CN 95110684 patent/CN1132266A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1048761C (en) * | 1997-08-20 | 2000-01-26 | 中国科学院金属腐蚀与防护研究所 | High-temperature ultrasonic immersion plating method for metal surface |
| CN110049813A (en) * | 2016-12-12 | 2019-07-23 | 伊苏瓦尔肯联铝业 | Improve liquid metal to the method for the wetting on the surface of solid substrate |
| US11525178B2 (en) | 2016-12-12 | 2022-12-13 | Constellium Issoire | Method for improving the wetting of a surface of a solid substrate by a liquid metal |
| CN108655527A (en) * | 2017-04-01 | 2018-10-16 | 广东工业大学 | A kind of ultrasonic wave is without brazing flux aluminum pipe brazing method and device |
| CN113166915A (en) * | 2018-11-06 | 2021-07-23 | 日本制铁株式会社 | Hot dip coating method |
| US11566315B2 (en) | 2018-11-06 | 2023-01-31 | Nippon Steel Corporation | Hot-dip plating method |
| CN114000079A (en) * | 2021-11-02 | 2022-02-01 | 东莞市金瑞五金股份有限公司 | End face copper-coating process of copper-steel composite reel pipe |
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