CN104014734A - Investment casting process of metal product - Google Patents
Investment casting process of metal product Download PDFInfo
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- CN104014734A CN104014734A CN201410267637.7A CN201410267637A CN104014734A CN 104014734 A CN104014734 A CN 104014734A CN 201410267637 A CN201410267637 A CN 201410267637A CN 104014734 A CN104014734 A CN 104014734A
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- Prior art keywords
- shell
- metallic article
- mould
- die cast
- cast technique
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Abstract
The invention provides an investment casting process of a metal product. The investment casting process comprises the following steps: S1, producing a forming mold; producing a corresponding forming mold according to the size of a workpiece of the metal product; S2, producing a shell: producing a shell according to the forming mold in S1; S3, pouring: pouring a metal liquid into an inner cavity of the shell; S4, discharging: removing the shell after the metal liquid is solidified, and discharging the formed metal product. The investment casting process of the metal product is simple in flow, convenient to operate and high in production efficiency. The shell conforming to the requirement can be manufactured according to the size of the metal product, the error of the shell is controllable, and the problem of excessively large tolerance can be avoided.
Description
Technical field
The present invention relates to metallic article manufacturing technology field, what relate in particular to a kind of metallic article melts die cast technique.
Background technology
At present, the metal material such as steel, iron, alloy becomes application material very widely with its good mechanical property, processing characteristics and unique surface property.The metallic article kind of being made by metal material is various, wide in variety.Technique for the manufacture of metallic article mainly contains casting, forging etc.
Wherein casting technique is compared with other processes, has that production cost is low, technological flexibility is large, strong adaptability, the advantages such as processing that can be suitable for supplementing metal material.But it also has certain deficiency, main manifestations is that tolerance more greatly, easily produces internal flaw etc.
Therefore,, for the problems referred to above, be necessary to provide further solution.
Summary of the invention
What the object of the present invention is to provide a kind of metallic article melts die cast technique.
For achieving the above object, a kind of metallic article of the present invention melt die cast technique, it comprises the steps:
S1. be made into mould, according to the workpiece size of metallic article, make corresponding mould;
S2. make shell, according to the mould in S1, make shell;
S3. cast, to casting metal solution in the inner chamber of shell;
S4. discharging, after metallic solution solidifies, removes shell, and the metallic article of moulding is deviate from.
As a further improvement on the present invention, described in, being made into mould is rubber mold or wax-pattern.
As a further improvement on the present invention, described wax-pattern comprises: paraffin, beeswax, stearic acid, rosin or their combination.
As a further improvement on the present invention, described paraffin comprises that mass fraction is 50% paraffin and 50% stearic acid.
As a further improvement on the present invention, in described S2, shell is coated on the outside of mould.
As a further improvement on the present invention, while making described shell, on mould, apply one deck refractory material, then spray fire sand on refractory material, and be solidified into shell, repeat aforesaid operations.
As a further improvement on the present invention, shell is put into stove by the mould that is coated with shell and is toasted after solidifying completely, removes mould.
As a further improvement on the present invention, after described removal mould, shell is carried out to high-temperature roasting.
As a further improvement on the present invention, the die cast technique of melting of described metallic article also comprises S5, and described S5 comprises that the metallic article to deviating from carries out post processing.
As a further improvement on the present invention, described post processing comprises removal cast gate, deburr.
Compared with prior art, the invention has the beneficial effects as follows: metallic article of the present invention melt that die cast technological process is simple, easy to operate, production efficiency is high.It can manufacture satisfactory shell according to the size of metallic article, and the error of shell is controlled, has avoided the excessive problem of tolerance.
Accompanying drawing explanation
Fig. 1 is the process flow diagram of a specific embodiment of melting die cast technique of metallic article of the present invention.
The specific embodiment
Below in conjunction with each embodiment shown in the drawings, the present invention is described in detail; but should be noted that; these embodiments are not limitation of the present invention; those of ordinary skills are according to these embodiment institute work energy, method or structural equivalent transformation or alternative, within all belonging to protection scope of the present invention.
As shown in Figure 1, the die cast technique 100 of melting of metallic article of the present invention comprises the steps:
S1. be made into mould, according to the workpiece size of metallic article, make corresponding mould;
S2. make shell, according to the mould in S1, make shell;
S3. cast, to casting metal solution in the inner chamber of shell;
S4. discharging, after metallic solution solidifies, removes shell, and the metallic article of moulding is deviate from.
Particularly, wherein, described in to be made into mould be rubber mold or wax-pattern.Described wax-pattern comprises: paraffin, beeswax, stearic acid, rosin or their combination.Preferably, described paraffin comprises that mass fraction is 50% paraffin and 50% stearic acid.
In described S2, shell is coated on the outside of mould.Particularly, while making described shell, on mould, apply one deck refractory material, then spray fire sand on refractory material, and be solidified into shell, repeat aforesaid operations.Shell is put into stove by the mould that is coated with shell and is toasted after solidifying completely, removes mould.When mould is wax-pattern, when mould is toasted, can makes wax-pattern melt, thereby reach the object of removing mould.
Further improve, after described removal mould, shell is carried out to high-temperature roasting, to increase the hardness of shell.Now, in order to prevent that shell from producing deformation in follow-up casting process, the problem such as break, can in the space of the restriction of shell, fill dry sand.
The die cast technique of melting of described metallic article also comprises S5, and described S5 comprises that the metallic article to deviating from carries out post processing.Described post processing comprises removes cast gate, deburr.
In sum, metallic article of the present invention melts that die cast technological process is simple, easy to operate, production efficiency is high.It can manufacture satisfactory shell according to the size of metallic article, and the error of shell is controlled, has avoided the excessive problem of tolerance.
To those skilled in the art, obviously the invention is not restricted to the details of above-mentioned one exemplary embodiment, and in the situation that not deviating from spirit of the present invention or essential characteristic, can realize the present invention with other concrete form.Therefore, no matter from which point, all should regard embodiment as exemplary, and be nonrestrictive, scope of the present invention is limited by claims rather than above-mentioned explanation, is therefore intended to include in the present invention dropping on the implication that is equal to important document of claim and all changes in scope.Any Reference numeral in claim should be considered as limiting related claim.
In addition, be to be understood that, although this description is described according to embodiment, but not each embodiment only comprises an independently technical scheme, this narrating mode of description is only for clarity sake, those skilled in the art should make description as a whole, and the technical scheme in each embodiment also can, through appropriately combined, form other embodiments that it will be appreciated by those skilled in the art that.
Claims (10)
- Metallic article melt a die cast technique, it is characterized in that, the die cast technique of melting of described metallic article comprises the steps:S1. be made into mould, according to the workpiece size of metallic article, make corresponding mould;S2. make shell, according to the mould in S1, make shell;S3. cast, to casting metal solution in the inner chamber of shell;S4. discharging, after metallic solution solidifies, removes shell, and the metallic article of moulding is deviate from.
- Metallic article according to claim 1 melt die cast technique, it is characterized in that, described in to be made into mould be rubber mold or wax-pattern.
- Metallic article according to claim 2 melt die cast technique, it is characterized in that, described wax-pattern comprises: paraffin, beeswax, stearic acid, rosin or their combination.
- Metallic article according to claim 3 melt die cast technique, it is characterized in that, described paraffin comprises that mass fraction is 50% paraffin and 50% stearic acid.
- Metallic article according to claim 1 melt die cast technique, it is characterized in that, in described S2, shell is coated on the outside of mould.
- Metallic article according to claim 5 melt die cast technique, it is characterized in that, while making described shell, on mould, apply one deck refractory material, then spray fire sand on refractory material, and be solidified into shell, repeat aforesaid operations.
- Metallic article according to claim 6 melt die cast technique, it is characterized in that, shell is put into stove by the mould that is coated with shell and is toasted after solidifying completely, removes mould.
- Metallic article according to claim 7 melt die cast technique, it is characterized in that, after described removal mould, shell is carried out to high-temperature roasting.
- Metallic article according to claim 1 melt die cast technique, it is characterized in that, the die cast technique of melting of described metallic article also comprises S5, described S5 comprises that the metallic article to deviating from carries out post processing.
- Metallic article according to claim 1 melt die cast technique, it is characterized in that, described post processing comprises removes cast gate, deburr.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410267637.7A CN104014734A (en) | 2014-06-16 | 2014-06-16 | Investment casting process of metal product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410267637.7A CN104014734A (en) | 2014-06-16 | 2014-06-16 | Investment casting process of metal product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104014734A true CN104014734A (en) | 2014-09-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410267637.7A Pending CN104014734A (en) | 2014-06-16 | 2014-06-16 | Investment casting process of metal product |
Country Status (1)
| Country | Link |
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| CN (1) | CN104014734A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104504195A (en) * | 2014-12-18 | 2015-04-08 | 上海交通大学 | Method for determining shrinking percentages of investment pattern precision casting mold |
| CN110229982A (en) * | 2019-07-12 | 2019-09-13 | 苏州标图高级座椅有限公司 | The good aircraft seat skeleton preparation process of resistance to compression |
-
2014
- 2014-06-16 CN CN201410267637.7A patent/CN104014734A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104504195A (en) * | 2014-12-18 | 2015-04-08 | 上海交通大学 | Method for determining shrinking percentages of investment pattern precision casting mold |
| CN110229982A (en) * | 2019-07-12 | 2019-09-13 | 苏州标图高级座椅有限公司 | The good aircraft seat skeleton preparation process of resistance to compression |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140903 |
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| WD01 | Invention patent application deemed withdrawn after publication |