CN101994138A - Filling closure of distant holes on surface of zinc die casting alloy and preparation method thereof - Google Patents
Filling closure of distant holes on surface of zinc die casting alloy and preparation method thereof Download PDFInfo
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- CN101994138A CN101994138A CN2009101668796A CN200910166879A CN101994138A CN 101994138 A CN101994138 A CN 101994138A CN 2009101668796 A CN2009101668796 A CN 2009101668796A CN 200910166879 A CN200910166879 A CN 200910166879A CN 101994138 A CN101994138 A CN 101994138A
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Abstract
The invention discloses filling closure of distant holes on the surface of a zinc die casting alloy and a preparation method thereof. The filling closure comprises a single metal or alloy of which the smelting point is lower than that of a zinc alloy. The preparation method comprises the following steps of: performing low melting point metal plating on the surface of the zinc alloy after dewaxing, degreasing and deoiling; rinsing and drying the surface of the zinc alloy after reaching the target thickness; performing the processes of anoxybiotic heating surface smelting and quenching to exhaust the gas in the distant holes after the zinc alloy is heated; performing penetration to fill up the distant holes of the zinc alloy by using the surface tension of a surface low melting point metal coating in a melting state; and reducing the crystal form size of the alloy, strengthening the structural strength, increasing the air tightness of the surface of a workpiece and preventing regeneration of the distant holes by using a quenching process. The filling closure and the preparation method are favorable for any surface treatment post-process of zinc alloy material blanks.
Description
Technical field
The filling sealing and the method for making thereof in hole dredged on a kind of zinc die casting alloys surface.
Background technology
The zinc die casting alloys developing history is long, satisfies the demand of people with low-cost volume production complex model workpiece, puts up the best performance with materials such as YX040, YX041, YX043 especially; But zinc alloy voltinism in the sky is active earlier, is easy to oxidation under the situation of the molten soup of high temperature, and hereat oxide compound, inorganic dust are brought into embryo spare by zinc water, forms to dredge the hole; Can reduce thin hole, surface though increase the die casting working pressure, be difficult to eventually solve fully, can not exempt from and make in the polishing process.
At foregoing problems, previous patented technology does not have the die casting pin hole problem at zinc alloy fully; More approaching technology is to apply to aluminium alloy compression casting to make engine engine, and it is as follows to make a summary:
As implied above, forefathers' technical development there is no the die casting of containing zinc alloy; Even if be used in aluminum alloy die-casting technological, also do not comprise the technology of electroplating low melting point alloy.
Summary of the invention
The present invention's main purpose is to provide a kind of energy to see through easy operation and can forms filling sealing and the method for making thereof of closely filling up thin hole, zinc die casting alloys surface.
Another object of the present invention is to provide a kind of and can be evenly distributed in filling sealing and the method for making thereof that the hole is dredged on the zinc die casting alloys surface.
The present invention's another purpose is to provide a kind of material for repairing of tool conduction property, processing procedure after any surface treatment of harmless zinc alloy material embryo spare.
For reaching above all purposes, the selected metal of the present invention is to fill up the material of dredging the hole, and the intensity that is conceived to metallic substance is much larger than resin or other inorganic material for repairing; Have conduction property simultaneously, make plating be possible in the post-treatment time-histories.
The metal material for repairing is selected for use from low melting point element group, is beneficial to fill up thin hole with the mode that heat is melted, and preferable selection is the single metal or alloy that fusing point is lower than zinc alloy; The metal that can select comprises: tin, indium, bismuth etc. or its alloy.
In the mode of zinc alloy embryo spare surface cloth metallizing material for repairing, select galvanized mode for use; With the thickness that effective control cloth applies, avoid losing dimensional precision; Hereat target setting thickness is the thickness that coating reaches is enough to fill up thin hole; Look the requirement of Flatness, 0.5～2 times of estimation of surface roughness Ra value that can zinc alloy embryo spare.
Select the rinsing baking operation for use, will electroplate the thorough eccysis of back zinc alloy embryo spare all inorganic salts of surface, and give drying; Avoid inorganic oxide impurity to form the surface once more and dredge the hole.
Melt the mode of zinc alloy embryo spare surface cloth metallizing material for repairing, the mode of selecting for use anoxybiotic intensification table to melt; Avoid the zinc alloy reoxidation, cause oxide impurity to form the surface once more and dredge the hole; The mode that can take is: zinc alloy embryo spare is placed in the oxygen-free environment is heated up, the low melting point metal up to the surface melts, and produces the effect of filling and leading up with its surface tension on zinc alloy embryo spare surface; Can take to such an extent that mode comprises: modes such as nitrogen furnace, argon gas stove, carbonic acid gas stove, oil bath.
Through adopting above processing procedure operation design, find that the real surface of zinc die casting alloys embryo spare amasss from 2.7～5.1 times that show surface-area, decline to a great extent 2.7～5.1 times; The surface roughness Ra value is from 15～20 μ m, 3～4 μ m that decline to a great extent, and the overall dimension precision is not lost.
Description of drawings
Fig. 1, tool are dredged the zinc alloy embryo spare in hole
Fig. 2, zinc alloy embryo spare are electroplated low melting point metal coating
Fig. 3, low melting point metal coating sealing of hole result
[element numbers simple declaration]
1. zinc alloy embryo spare
2. dredge the hole
3. low melting point metal coating
4. low melting point metal coating sealing of hole result
Embodiment
Below be the embodiment by particular specific embodiment explanation the present invention, appearance was understood the present invention's other advantage and effect easily within the personage who is familiar with this skill can be disclosed by this specification sheets.The present invention also can be implemented or be used by other different specific embodiment, and the every details in this specification sheets also can be carried out various modifications and change based on different viewpoints and application under not departing from the present invention's spirit.
(L50mm * W40mm * H2mm), to show surface-area be 4320mm for three plates with the die casting of zinc alloy code name YX040 institute
2
Use and to clean, after the oven dry, disturb She Shi crystal formation analyser and read the crystal formation size through nitrogen surface-area measurement instrument and surface profiler analysis, X-Ray, just like attached data as prescription, the operation of table one.
Use afterwards and carry out oil bath, quenching, cleaning, after the oven dry, disturb She Shi crystal formation analyser and read the crystal formation size through nitrogen surface-area measurement instrument and surface profiler analysis, X-Ray, just like attached data as prescription, the operation of table one.
Confirm: the original real surface of zinc die casting alloys embryo spare amasss from 40～55 times that show surface-area, and declining to a great extent is 2.7～5.1 times; The surface roughness Ra value is from 15～20 μ m, and 3～4 μ m that decline to a great extent are inversely proportional in the crystal formation size of physical strength and are also reduced; And the overall dimension precision is not lost.
Table one: operation process operations parameter and measurement
The foregoing description only is illustrative the present invention's principle and effect thereof, but not is used to limit the present invention.Any personage who has the knack of this skill all can be under the present invention's spirit and category, and the foregoing description is modified and changed.Therefore, the present invention's rights protection scope, claim that should be as described later is listed.
Claims (10)
1. one kind " the filling sealing and the method for making thereof in hole dredged on the zinc die casting alloys surface ", be to electroplate imposing low melting point metal, reach after the target thickness, dry through rinsing through the zinc alloy surface that takes off cured, degreasing, de-oiling, melt through anoxybiotic intensification table again, again through the processing procedure operation of quenching; Aforesaid processing procedure, the gas that can utilize zinc alloy will dredge after heating up in the hole is discharged, and the surface tension infiltration that utilizes the surperficial low melting point metal coating of melting attitude mends the hole of dredging of full zinc alloy, utilize again the quenching process reduce alloy crystal formation size, reinforced structure intensity, increase workpiece surface stopping property, avoid dredging the regeneration in hole; The present invention helps processing procedure after any surface treatment of zinc alloy material embryo spare.
2. patent claim first described it " zinc die casting alloys " is meant: alloy code name YX040, materials such as YX041, YX043 that GB/T13818-1992 defined.
3. patent claim first described it " thin hole " is meant: because of containing impurity such as oxide compound, dust in the liquid Zn water; Or insufficient pressure during die casting, deslagging has some setbacks and after causing the condensation of zinc alloy diecasting embryo spare, the hole on the surface.
4. described it of first of patent claim " takes off cured, degreasing, de-oiling " and be meant: zinc alloy diecasting embryo spare is before doing surface treatment, and organic greases such as the releasing agent that surface institute is remaining, lubricant, rubbing paste remove, the operation of eccysis.
5. patent claim first described it " low melting point metal " is meant: fusing point is lower than the single metal or alloy of zinc alloy; The metal that can select comprises: tin, indium, bismuth etc. or its alloy.
6. patent claim first described it " target thickness " is meant: coating reaches is enough to fill up the thickness of dredging the hole; Surface roughness Ra value that can zinc alloy embryo spare is estimated it.
7. patent claim first described it " rinsing oven dry " is meant: with the thorough eccysis of zinc alloy embryo spare all inorganic salts of surface, and give drying.
8. patent claim first described it " anoxybiotic intensification table melts " is meant: zinc alloy embryo spare is placed in the oxygen-free environment is heated up, the low melting point metal up to the surface melts, and produces the effect of filling and leading up with its surface tension on zinc alloy embryo spare surface; Can take to such an extent that mode comprises: modes such as nitrogen furnace, argon gas stove, carbonic acid gas stove, oil bath.
9. patent claim first described it " quenching " is meant: zinc alloy embryo spare surface low melting point metal under the melting state, is positioned among cooling bath or cold oil bathes rapidly, to be not less than 20 ℃/second speed cooling; Till surperficial low melting point metal solidifies.
10. the zinc die casting alloys embryo spare of being handled with processing procedure of the present invention can have one deck low melting point metal on the surface of embryo spare, and has the function of filling up hole; This one is characterized as other processing procedure or patent does not have.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101668796A CN101994138A (en) | 2009-08-25 | 2009-08-25 | Filling closure of distant holes on surface of zinc die casting alloy and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101668796A CN101994138A (en) | 2009-08-25 | 2009-08-25 | Filling closure of distant holes on surface of zinc die casting alloy and preparation method thereof |
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| CN101994138A true CN101994138A (en) | 2011-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009101668796A Pending CN101994138A (en) | 2009-08-25 | 2009-08-25 | Filling closure of distant holes on surface of zinc die casting alloy and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106466711A (en) * | 2015-08-21 | 2017-03-01 | 比亚迪股份有限公司 | Method and die casting appearance member that die-casting material and its reperforating method and die-casting material electroplating surface are processed |
| CN107245745A (en) * | 2017-06-12 | 2017-10-13 | 歌尔股份有限公司 | Die casting surface treatment method and die casting |
| CN109128159A (en) * | 2018-09-21 | 2019-01-04 | 歌尔股份有限公司 | A kind of method and mold of the roughness on the surface for reducing coarse material |
-
2009
- 2009-08-25 CN CN2009101668796A patent/CN101994138A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106466711A (en) * | 2015-08-21 | 2017-03-01 | 比亚迪股份有限公司 | Method and die casting appearance member that die-casting material and its reperforating method and die-casting material electroplating surface are processed |
| CN107245745A (en) * | 2017-06-12 | 2017-10-13 | 歌尔股份有限公司 | Die casting surface treatment method and die casting |
| CN109128159A (en) * | 2018-09-21 | 2019-01-04 | 歌尔股份有限公司 | A kind of method and mold of the roughness on the surface for reducing coarse material |
| CN109128159B (en) * | 2018-09-21 | 2024-02-13 | 歌尔光学科技有限公司 | Method and die for reducing surface roughness of rough material |
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Application publication date: 20110330 |