CN1482283A - Electromoulding method based on non-metal prototype - Google Patents
Electromoulding method based on non-metal prototype Download PDFInfo
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- CN1482283A CN1482283A CNA031283918A CN03128391A CN1482283A CN 1482283 A CN1482283 A CN 1482283A CN A031283918 A CNA031283918 A CN A031283918A CN 03128391 A CN03128391 A CN 03128391A CN 1482283 A CN1482283 A CN 1482283A
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Abstract
The present invention belongs to the field of electroforming technology and is one kind of electroforming method based on non-metal prototype. The method includes making required non-metal prototype via fast formation, assembling the prototype with prepared metal base body, electroforming via soaking the assembled body into electroforming solution until the electroformed layer fills the interval between the metal base body and the non-metal prototype to copy the main contour of the prototype surface to form the required electroformed metal casing. The method with non-metal prototype and no conducting processing has simplified technological process, raised electroforming precision, capacity of directly forming cooling channel with complicated shape and obviously raised product quality.
Description
Technical field: the invention belongs to the electroforming field, relate to a kind of electrocasting method based on nonmetal prototype.
Background technology: electroforming generally is based on the method that metal prototype or nonmetal prototype add the conductionization processing; Electroforming EDM electrode and electroforming mould all will be used prototype.Prototype is divided into metal prototype and nonmetal prototype two big classes.On metal prototype, electroforming can directly be carried out; But not metal prototype need just can carry out electroforming thereon after the conductionization processing.At present, each conductionization treatment process of nonmetal prototype all exists defective to some extent: or be complex process; Thereby the original dimension that will have influence on prototype finally has influence on the precision of mould and EDM electrode.
Summary of the invention: the shortcoming that the present invention is directed to the processing of nonmetal prototype conductionization, solve complex process and the not high problem of precision, a kind of electrocasting method based on nonmetal prototype is proposed, this method is to make needed nonmetal prototype with quick molding method earlier, then itself and ready prepd metallic matrix is fitted together; Subsequently this assembly is immersed in and carries out electroforming in the electroforming solution; Treat that electroformed layer fills up the gap between metallic matrix and the nonmetal prototype, prototype surface main outline is duplicated, promptly obtain needed electroforming metal housing.This method adopts nonmetal prototype but without the conductionization processing, has simplified technology, has improved electroforming part precision; And to needing the mould of coolant flow channel, its cooling duct directly electroforming to become the cross section be the follow-cooling passageway of any shape, significantly improved the quality of product.
Description of drawings: Fig. 1 is the ultimate principle figure of the inventive method;
Fig. 2 is the electroforming schema of mould of the band coolant flow channel of the inventive method;
Fig. 3 is the electroforming schematic diagram of the mold cools down runner of the inventive method.
Embodiment: the present invention adopts nonmetal prototype but without the method for conductionization processing.Its ultimate principle as shown in Figure 1.Earlier make needed nonmetal prototype 1, then itself and ready prepd metallic matrix 2 are fitted together with quick molding method.Subsequently, this assembly 3 is immersed in carries out electroforming in the electroforming solution.In the electroforming process, the deposition of electroforming metal is progressively piled up to nonmetal prototype 1 from the surface of metallic matrix 2, and the electroformed layer progressive additive until the gap of filling up between metallic matrix 2 and the nonmetal prototype 1, duplicates prototype surface main outline get off.Obtain needed electroforming metal housing 4 at last.
Wherein, it should be noted that in the preparation of metallic matrix.The one, the sedimentary surface of electroforming that do not need of requirement metallic matrix 2 needs parcel or spraying insulation layer; The 2nd, the spacing H on requirement metallic matrix 2 surfaces and nonmetal prototype 1 surface is preferably between 0.2mm～3mm, to be fit to electroforming and economy requirement best.The control of spacing can take appropriate measures at the complexity of prototype 1: if prototype 1 is simple, and the metal block that metallic matrix 2 just is fit to size or just can through the metal block of processing slightly by size; If prototype 1 more complicated, the making method of metallic matrix 2 can be carried out as follows: make a nonmetal prototype slightly littler than required prototype 1 size with quick molding method earlier, thickness of electric arc spraying is not less than 5mm metallic matrix conformal shell on its basis then.
This based on the electrocasting method of nonmetal prototype without the conductionization processing, the entire treatment process time shortens, and technology is simple relatively, has reduced intermediate treatment and aftertreatment link, has improved the precision of electroforming part.
For the mould that needs coolant flow channel, traditional method is that coolant flow channel is processed rice, or present existing way is pre-buried having bent to and mold work surface main outline (being the part main outline) akin metal tube (as copper pipe) in the electroforming process.Though the coolant flow channel of latter's manufacturing has higher cooling efficiency than the former, reduced the temperature difference of die surface; But still be subjected to circumscribed influence of mechanical workout shaping, the correspondence of coolant flow channel curved shape and mold work surface main outline is still not so good, also can have influence on the final quality of product.
Adopt the method for electroforming of the present invention to make for coolant flow channel, its coolant flow channel of making has and the consistent shape of mold work surface main outline, promptly so-called follow-cooling passageway, and its cross section can be any shapes such as circle, ellipse, rectangle.Like this, cooling duct adds on the basis of conformal and adopts suitable cross-sectional shape, can not only improve cooling efficiency, shortens the injection cycle cycle, and can significantly dwindle the temperature difference on the die face, reduces internal stress and buckling deformation in the workpiece, improves the quality of workpiece.As Fig. 2, shown in Figure 3, the making step of this method is as follows: at first, make product, mould 3D figure with three-dimensional drawing software; Then, make the conformal skeletal lines and generate the follow-cooling passageway three-dimensional plot according to the position of coolant flow channel; On this basis, process disposable follow-cooling passageway prototype 5 with quick molding method and relevant aftertreatment technology thereof, prototype 5 metal molds and non-metal type all can, and itself and mould prototype 6 fitted together; At last, assembly 7 is immersed in carries out electroforming in the electroforming solution, after electroforming is intact follow-cooling passageway prototype 5 is disposed the mould 7 that just obtains having follow-cooling passageway.
Claims (6)
1, a kind of electrocasting method based on nonmetal prototype, this method are to make needed nonmetal prototype with quick molding method earlier, then itself and ready prepd metallic matrix are fitted together; Subsequently this assembly is immersed in and carries out electroforming in the electroforming solution; Treat that electroformed layer fills up the gap between metallic matrix and the nonmetal prototype, prototype surface main outline is duplicated, promptly obtain needed electroforming metal housing.
2, the electrocasting method based on nonmetal prototype as claimed in claim 1 is characterized in that: the sedimentary surface of the electroforming needs that do not need of described metallic matrix wrap up or the spraying insulation layer.
3, the electrocasting method based on nonmetal prototype as claimed in claim 1 is characterized in that: the spacing optimum range on described metal base surface and nonmetal prototype surface is between 0.2mm～3mm.
4, the electrocasting method based on nonmetal prototype as claimed in claim 1 is characterized in that: described metallic matrix is at the metal block that adopts size to be fit to when prototype is simple or press the size metal block through processing slightly.
5, the electrocasting method based on nonmetal prototype as claimed in claim 1, it is characterized in that: described metallic matrix adopts following method to make when the prototype more complicated time: make a nonmetal prototype slightly littler than required former molded dimension with quick molding method earlier, thickness of electric arc spraying is not less than 5mm metallic matrix conformal shell on its basis then.
6,, the electrocasting method based on nonmetal prototype as claimed in claim 1, the step of making the coolant flow channel mould is:
A, make product, mould 3D figure with three-dimensional drawing software;
B, make the conformal skeletal lines and generate the follow-cooling passageway three-dimensional plot according to the position of coolant flow channel;
C, on this basis processes disposable follow-cooling passageway prototype with quick molding method and relevant aftertreatment technology thereof, and metal mold and non-metal type all can;
D, above-mentioned follow-cooling passageway prototype and mould prototype are fitted together;
E, assembly is immersed in carries out electroforming in the electroforming solution;
F, electroforming are disposed the mould that just obtains having follow-cooling passageway with the follow-cooling passageway prototype after finishing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03128391 CN1242100C (en) | 2003-07-22 | 2003-07-22 | Electromoulding method based on non-metal prototype |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03128391 CN1242100C (en) | 2003-07-22 | 2003-07-22 | Electromoulding method based on non-metal prototype |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1482283A true CN1482283A (en) | 2004-03-17 |
| CN1242100C CN1242100C (en) | 2006-02-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03128391 Expired - Fee Related CN1242100C (en) | 2003-07-22 | 2003-07-22 | Electromoulding method based on non-metal prototype |
Country Status (1)
| Country | Link |
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| CN (1) | CN1242100C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110860657A (en) * | 2019-11-05 | 2020-03-06 | 北京遥感设备研究所 | Method for forming complex inner runner mold core |
-
2003
- 2003-07-22 CN CN 03128391 patent/CN1242100C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110860657A (en) * | 2019-11-05 | 2020-03-06 | 北京遥感设备研究所 | Method for forming complex inner runner mold core |
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| Publication number | Publication date |
|---|---|
| CN1242100C (en) | 2006-02-15 |
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