CN103464678A - Metal type gravity pouring process - Google Patents
Metal type gravity pouring process Download PDFInfo
- Publication number
- CN103464678A CN103464678A CN 201310409336 CN201310409336A CN103464678A CN 103464678 A CN103464678 A CN 103464678A CN 201310409336 CN201310409336 CN 201310409336 CN 201310409336 A CN201310409336 A CN 201310409336A CN 103464678 A CN103464678 A CN 103464678A
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- CN
- China
- Prior art keywords
- mould
- coating
- cleaning
- heating
- gravity pouring
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The invention provides a metal type gravity pouring process. The metal type gravity pouring process particularly comprises the following technological process: A cleaning a mould: carrying out polishing cleaning on the surface of the mould so that the surface of the mould is smooth; B pre-heating: heating the mould to control the temperature of the mould to 100-120 DEG C; C spraying a special coating: spraying one layer of the special heat-resisting coating on the surface of an inner cavity of the mould by a spraying gun; heating and drying the mould after the coating is well sprayed; and D cleaning off floating sand at the periphery in a mould cavity, thus obtaining a finished product. The process provided by the invention has the advantages of strong coating adhering force, high mold stripping rate of the product, high finished product rate and the like; the finished product rate can be more than 95%.
Description
Technical field
The present invention relates to a kind of pouring technology, particularly relate to a kind of metal gravity pouring technology.
Background technology
During existing metal gravity cast, generally use liquefied gas flame by mould and die preheating to 100 ℃ left and right, then spray paint is poured into a mould.In this case, the cast product starts second-rate, with latter made casting quality, start to take a turn for the better, and, along with the rising of mold temperature, the quality of foundry goods starts again continuous decrease, and final up-to-standard rate is generally 70% left and right.
Summary of the invention
Purpose of the present invention is exactly defect and the deficiency existed for overcoming above-mentioned prior art, and provides a kind of paint adhesion strong, the metal gravity pouring technology that product depanning rate is high.
The technical scheme adopted is:
The metal gravity pouring technology is characterized in that comprising following technical process:
1, mold cleaning
To the die surface cleaning of polishing, make die surface smooth.
2, preheating
Grinding tool is heated, make mold temperature be controlled at 100-120 ℃.
3, spray special coating
Mold cavity surfaces is coated with to the heat-resisting paint of last layer special use with spray gun, coating also needs mould is carried out to heating, drying after spraying well.
4, clean out the floating sand of die cavity inner rim, make finished product.
The present invention compared with prior art has the following advantages:
Discovery when after Optimization Technology, carrying out actual production, technique of the present invention has that paint adhesion is strong, and the depanning rate of product is high, the yield rate advantages of higher, yield rate can reach more than 95%.
The specific embodiment
The metal gravity pouring technology specifically comprises following technical process:
The core process for low pressure casting and forming is characterized in that comprising following technical process:
1, mold cleaning
With wire wheel, to the die surface cleaning of polishing, make die surface smooth, the foundry goods demoulding is easily thrown off.
2, preheating
With liquefied gas flame, mould is carried out to pre-heating temperature elevation, the mold temperature general control is 100 ℃ of left and right.
3, spray special coating
After reaching temperature, mold cavity surfaces is coated with to the heat-resisting paint of last layer special use with spray gun, to play effect heat insulation and the protection mould.Coating also needs mould is carried out to heating, drying after spraying well, to remove the moisture in coating.
4, the core that will make is in advance located in the low pressure casting punching block chamber of packing into by base, and cleans out the floating sand of die cavity inner rim.
Claims (1)
1. metal gravity pouring technology is characterized in that comprising following technical process:
A, mold cleaning, to the die surface cleaning of polishing, make die surface smooth;
B, preheating, heated to grinding tool, makes mold temperature be controlled at 100-120 ℃;
C, spray special coating, be coated with the heat-resisting paint of last layer special use with spray gun to mold cavity surfaces, coating also needs mould is carried out to heating, drying after spraying well;
D, clean out the floating sand of die cavity inner rim, make finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310409336 CN103464678A (en) | 2013-09-11 | 2013-09-11 | Metal type gravity pouring process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310409336 CN103464678A (en) | 2013-09-11 | 2013-09-11 | Metal type gravity pouring process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103464678A true CN103464678A (en) | 2013-12-25 |
Family
ID=49789843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201310409336 Pending CN103464678A (en) | 2013-09-11 | 2013-09-11 | Metal type gravity pouring process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103464678A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105290716A (en) * | 2014-06-26 | 2016-02-03 | 天津滨海宏翔汽车模具制造有限公司 | Manufacturing process for novel automobile pipeline testing tool |
| CN114210925A (en) * | 2021-12-13 | 2022-03-22 | 湖南鑫泉科技有限公司 | Metal mold gravity casting method |
-
2013
- 2013-09-11 CN CN 201310409336 patent/CN103464678A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105290716A (en) * | 2014-06-26 | 2016-02-03 | 天津滨海宏翔汽车模具制造有限公司 | Manufacturing process for novel automobile pipeline testing tool |
| CN114210925A (en) * | 2021-12-13 | 2022-03-22 | 湖南鑫泉科技有限公司 | Metal mold gravity casting method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131225 |