CN104785719A - Precision-investment casting method - Google Patents
Precision-investment casting method Download PDFInfo
- Publication number
- CN104785719A CN104785719A CN201510210734.7A CN201510210734A CN104785719A CN 104785719 A CN104785719 A CN 104785719A CN 201510210734 A CN201510210734 A CN 201510210734A CN 104785719 A CN104785719 A CN 104785719A
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- CN
- China
- Prior art keywords
- investment
- precision
- casting
- shell
- mold
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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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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/02—Sand moulds or like moulds for shaped castings
- B22C9/04—Use of lost patterns
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The invention relates to the technical field of casting, and particularly relates to a precision-investment casting method which comprises the following steps: 1. preparing 20% of paraffin, 40% of stearic acid and 15% of ozokerite as the following components of the mold material, and mixing the components at 50-55 DEG C; 2. pressing an investment; 3. drying the pressed investment; 4. repairing the dried investment, and inspecting; 5. manufacturing of molding shell: coating a refractory powder outside the inspected investment, wherein the refractory powder is 275# coal gangue powder; 6. roasting the mold shell at 1100-1200 DEG C for 3.5-4.5 hours; and 7. casting the product material alloy solution into the mold shell; and 8. cooling and solidifying. The precision-investment casting method disclosed by the invention has the advantages of reasonable process route design and scientific mold material formula, and can effectively enhance the actual filling state ideal degree of the wax mold, thereby enhancing the casting precision.
Description
Technical field
The present invention relates to technical field of forging, be specifically related to a kind of precision-investment casting method.
Background technology
Investment precision casting technology is also referred to as model casting or lost-wax casting, and the product that this casting obtains is accurate, complicated, close to part final form, can not to process or directly processing just uses, and is an excellent technology in casting industry.But in existing precision-investment Forging Technology, also there is a lot of problem in mould material formula, the technological process aspect of model casting, causes the actual filling mould states of wax-pattern unsatisfactory, cause casting accuracy not high.
Summary of the invention
For solving the above-mentioned problems in the prior art, the invention provides a kind of precision-investment casting method.
Technique effect of the present invention is achieved through the following technical solutions:
A kind of precision-investment casting method, comprises the following steps:
Step one: configuration mould material, the component percentages of mould material component is paraffin 20%, stearic acid 40%, ceresine 15%, and above each component mixes at 50-55 DEG C;
Step 2: fusible pattern injection;
Step 3: the fusible pattern after compacting is dried;
Step 4: the fusible pattern after drying is repaired a die, inspection;
Step 5: shell manufacture, described shell is fabricated to the fusible pattern after by inspection and schemes upper refractory powder outward, and described refractory powder is 275# colliery powder;
Step 6: Baking, temperature 1100-1200 DEG C, time 3.5-4.5h;
Step 7: product material aluminium alloy of casting in shell;
Step 8: cooled and solidified.
The invention has the beneficial effects as follows:
A kind of precision-investment casting method disclosed in this invention, Process Route Planning is reasonable, and mould material formula science, effectively can improve the actual filling mould states desired level of wax-pattern, and then improves casting accuracy.
Detailed description of the invention
The present invention is realized by following detailed description of the invention:
A kind of precision-investment casting method, comprises the following steps:
Step one: configuration mould material, the component percentages of mould material component is paraffin 20%, stearic acid 40%, ceresine 15%, and above each component mixes at 50-55 DEG C;
Step 2: fusible pattern injection;
Step 3: the fusible pattern after compacting is dried;
Step 4: the fusible pattern after drying is repaired a die, inspection;
Step 5: shell manufacture, described shell is fabricated to the fusible pattern after by inspection and schemes upper refractory powder outward, and described refractory powder is 275# colliery powder;
Step 6: Baking, temperature 1100-1200 DEG C, time 3.5-4.5h;
Step 7: product material aluminium alloy of casting in shell;
Step 8: cooled and solidified.
Last it is noted that the foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, although with reference to previous embodiment to invention has been detailed description, for a person skilled in the art, it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (1)
1. a precision-investment casting method, is characterized in that: comprise the following steps:
Step one: configuration mould material, the component percentages of mould material component is paraffin 20%, stearic acid 40%, ceresine 15%, and above each component mixes at 50-55 DEG C;
Step 2: fusible pattern injection;
Step 3: the fusible pattern after compacting is dried;
Step 4: the fusible pattern after drying is repaired a die, inspection;
Step 5: shell manufacture, described shell is fabricated to the fusible pattern after by inspection and schemes upper refractory powder outward, and described refractory powder is 275# colliery powder;
Step 6: Baking, temperature 1100-1200 DEG C, time 3.5-4.5h;
Step 7: product material aluminium alloy of casting in shell;
Step 8: cooled and solidified.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510210734.7A CN104785719A (en) | 2015-04-29 | 2015-04-29 | Precision-investment casting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510210734.7A CN104785719A (en) | 2015-04-29 | 2015-04-29 | Precision-investment casting method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104785719A true CN104785719A (en) | 2015-07-22 |
Family
ID=53551156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510210734.7A Pending CN104785719A (en) | 2015-04-29 | 2015-04-29 | Precision-investment casting method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104785719A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105798240A (en) * | 2016-04-27 | 2016-07-27 | 无锡环宇精密铸造有限公司 | Method for forming coal gangue sand for precision casting facing sand |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103028698A (en) * | 2012-12-12 | 2013-04-10 | 青岛三合山精密铸造有限公司 | Precise casting method of fired mold |
| CN103861998A (en) * | 2014-03-07 | 2014-06-18 | 苏州捷德瑞精密机械有限公司 | Investment casting method |
-
2015
- 2015-04-29 CN CN201510210734.7A patent/CN104785719A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103028698A (en) * | 2012-12-12 | 2013-04-10 | 青岛三合山精密铸造有限公司 | Precise casting method of fired mold |
| CN103861998A (en) * | 2014-03-07 | 2014-06-18 | 苏州捷德瑞精密机械有限公司 | Investment casting method |
Non-Patent Citations (1)
| Title |
|---|
| 李英民等: "新型熔模铸造模料的研究", 《沈阳工业大学学报》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105798240A (en) * | 2016-04-27 | 2016-07-27 | 无锡环宇精密铸造有限公司 | Method for forming coal gangue sand for precision casting facing sand |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150722 |
|
| RJ01 | Rejection of invention patent application after publication |