CN104439062A - Mold for measuring temperature in casting process and production method of mold - Google Patents
Mold for measuring temperature in casting process and production method of mold Download PDFInfo
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- CN104439062A CN104439062A CN201410735092.8A CN201410735092A CN104439062A CN 104439062 A CN104439062 A CN 104439062A CN 201410735092 A CN201410735092 A CN 201410735092A CN 104439062 A CN104439062 A CN 104439062A
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- mold
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- pipeline
- quartz ampoule
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Abstract
The invention provides a production method of a mold for measuring the temperature in a casting process. The production method comprises the following steps: step A, producing a wax mold of a part, and welding a wax rod on a temperature measuring point of the wax mold; step B, preparing a mold shell by using the wax mold in the step A; and step C, after carrying out de-waxing treatment on the mold shell of the step B, putting a quartz tube into a pipeline, and filing a gap between the quartz tube and the pipeline with fireproof cotton, fireproof sand, and a mixture of shell producing slurry and the fireproof sand in sequence from inside to outside, and drying the mixture of the shell producing slurry and the fireproof sand on the outermost layer so as to produce the mold. By virtue of the production method of the mold for measuring the temperature in the casting process, the mold for measuring the temperature of the part and any part of the mold shell in the casting process can be produced, and the positioning of the measuring point is accurate and the temperature measurement is accurate. The invention further provides the mold produced by adopting the method.
Description
Technical field
The present invention relates to casting field, particularly a kind of mould measuring formwork and metal temperature in hot investment casting process, present invention also offers the manufacture method of above-mentioned mould.
Background technology
Since the nineties in 20th century, the appearance of domestic and international large quantities of commercialization Numerical Simulation of Solidification Process software, indicates that analogue technique is progressively ripe and enters practical stage.Casting process simulation adopts the whole cast of software simulation and alloy graining process, predicts the defective locations and degree that may occur, to instruct actual casting to produce, saves the cost of actual process test.But the accuracy of simulation depends on the boundary condition of setting, the acquisition of boundary condition needs again the variations in temperature by measuring formwork, alloy in casting process calculate and obtain.Because casting process exists the environment such as high temperature, vacuum operation, cause the Measurement accuracy of actual temperature data to be an insoluble problem always, arrange boundary condition during simulation usually to need by virtue of experience to carry out calculating acquisition, the easy like this result of analog computation and the result of actual production of causing misfits.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of mould for measuring tempeature in casting process and manufacture method thereof, to reduce or to avoid problem noted earlier.
For solving the problems of the technologies described above, the present invention proposes a kind of manufacture method of the mould for measuring tempeature in casting process, its accurate temperature measurement realizing in parts of Casting process by arranging the quartz ampoule with thermocouple that directly can touch die cavity on formwork, it comprises the steps
Steps A, manufactures the wax-pattern of described part, at the point for measuring temperature position of described wax-pattern welding rod wax; Described rod wax is for the formation of the pipeline be communicated with described die cavity;
Step B, utilizes the wax-pattern of steps A to prepare formwork, in the described formwork process of preparation, keeps described rod wax end face not covered by die casing material;
Step C, after dewaxing treatment is carried out to the formwork of step B, described quartz ampoule is put into described pipeline, and the gap between described quartz ampoule and described pipeline uses the mixture filling of resistance to guncotton, fire sand and shell slurry processed and fire sand from the inside to the outside successively, and drying is carried out to the mixture of outermost described shell slurry processed and fire sand process, so far, the manufacture of mould is completed.
Preferably, in step, described rod wax length 3-10mm shorter in described quartz ampoule length, described rod wax comprises an excellent body and termination, described excellent body diameter 5-12mm larger than described quartz tube, described tip diameter 5-8mm larger than described excellent body diameter, the length of described termination and the length ratio of described excellent body are 1:3-1:5.
Present invention also offers a kind of mould using said method to manufacture, it comprises one for the die cavity of casting described part and the pipeline for placing described quartz ampoule be communicated with described die cavity, and the gap between described quartz ampoule and described pipeline uses the mixture filling of resistance to guncotton, fire sand and shell slurry processed and fire sand from the inside to the outside successively.
Preferably, described pipeline comprises the tubule direct-connected with described die cavity and the extra heavy pipe direct-connected with described tubule, described capillary diameter 5-12mm larger than described quartz tube, described extra heavy pipe diameter 5-8mm larger than described capillary diameter, the length of described extra heavy pipe and the length ratio of described tubule are 1:3-1:5.
A kind of mould for measuring tempeature in casting process provided by the present invention, it can measure the temperature at part and any position of formwork in casting process, and measurement point accurate positioning, temperature survey is accurate.Present invention also offers the manufacture method of above-mentioned mould.
Accompanying drawing explanation
The following drawings is only intended to schematically illustrate the present invention and explain, not delimit the scope of the invention.Wherein,
Fig. 1 is the manufacturing theory schematic diagram of a kind of mould for measuring tempeature in casting process according to a specific embodiment of the present invention;
Fig. 2 is the structural representation of the mould shown in Fig. 1.
Detailed description of the invention
In order to there be understanding clearly to technical characteristic of the present invention, object and effect, now contrast accompanying drawing and the specific embodiment of the present invention is described.Wherein, identical parts adopt identical label.
Fig. 1 is the manufacturing theory schematic diagram of a kind of mould for measuring tempeature in casting process according to a specific embodiment of the present invention; Fig. 2 is the structural representation of the mould shown in Fig. 1.Shown in Fig. 1,2, the invention provides a kind of manufacture method of the mould for measuring tempeature in casting process, its accurate temperature measurement realizing in parts of Casting process by arranging the quartz ampoule 2 with thermocouple (not shown) that directly can touch die cavity 10 on the die casing 1, it comprises the steps
Steps A, manufactures the wax-pattern 3 of described part, at the point for measuring temperature position of described wax-pattern 3 welding rod wax 4; Described rod wax 4 is for the formation of the pipeline 11 be communicated with described die cavity 10, so just described quartz ampoule 2 can be placed on described pipeline 11, thus making in casting process, the described thermocouple in described quartz ampoule 2 can the formwork 1 of point for measuring temperature described in precise acquisition and metal temperature numerical value.
Described rod wax 4 length is shorter than described quartz ampoule 2 length, such as can short 3-10mm, like this can so that follow-up described quartz ampoule 2 is loaded described pipeline 11.
In order to avoid in casting process, the thermal loss of the described point for measuring temperature that described pipeline 11 causes, therefore described pipeline 11 is little as much as possible, and in order to ensure that the installation of described quartz ampoule 2 in described pipeline 11 is located and arrange Insulation, described pipeline 11 must be made again to possess certain installation dimension.Inventor gropes through test of many times, and when finding that described rod wax 4 adopts following structure, its described pipeline 11 prepared can obtain optimum insulation and install effect.Described rod wax 4 comprises an excellent body 41 and termination 42, described excellent body 41 diameter 5-12mm larger than described quartz ampoule 2 diameter, and described termination 42 diameter 5-8mm larger than described excellent body 41 diameter, the length of described termination 42 and the length ratio of described excellent body 41 are 1:3-1:5.
Step B, utilizes the wax-pattern 3 of steps A to prepare formwork 1, in described formwork 1 process of preparation, keeps described rod wax 4 end face not covered by die casing material; Can guarantee that the described pipeline 11 finally prepared is through holes like this, thus be convenient to the described quartz ampoule 2 of follow-up installation.
Step C, after dewaxing treatment is carried out to the formwork of step B, described quartz ampoule 2 is put into described pipeline 11, and the gap between described quartz ampoule 2 and described pipeline 11 uses mixture 23 filling of resistance to guncotton 21, fire sand 22 and shell slurry processed and fire sand from the inside to the outside successively, and drying is carried out to the mixture 23 of outermost shell slurry processed and fire sand process, so far, the manufacture of mould is completed.
Described resistance to guncotton 21 can first be wrapped on described quartz ampoule 2, then described pipeline 11 is put in the lump with described quartz ampoule 2, described resistance to guncotton 21 can prevent described fire sand 22 from dropping into described die cavity 10, the mixture 23 of outermost shell slurry processed and fire sand after the drying, is run away when can ensure that described quartz ampoule 2 possesses enough intensity with the connection of described pipeline 11 thus avoids casting metal.
Present invention also offers mould prepared by said method, it comprises one for the die cavity 10 of casting described part and the pipeline 11 for placing described quartz ampoule 2 be communicated with described die cavity 10, and the gap between described quartz ampoule 2 and described pipeline 11 uses mixture 23 filling of resistance to guncotton 21, fire sand 22 and shell slurry processed and fire sand from the inside to the outside successively.
In a preferred embodiment, described pipeline 11 comprises the tubule direct-connected with described die cavity 10 and the extra heavy pipe direct-connected with described tubule, described capillary diameter 5-12mm larger than described quartz ampoule 2 diameter, described extra heavy pipe diameter 5-8mm larger than described capillary diameter, the length of described extra heavy pipe and the length ratio of described tubule are 1:3-1:5.As previously mentioned, described pipeline 11 is shaping by described rod wax 4, and the described excellent body 41 of described rod wax is for shaping described tubule, and described termination 42 is due to shaping described extra heavy pipe.
A kind of mould for measuring tempeature in casting process provided by the present invention, it can measure the temperature at part and any position of formwork in casting process, and measurement point accurate positioning, temperature survey is accurate.Present invention also offers the manufacture method of above-mentioned mould.
Although it will be appreciated by those skilled in the art that the present invention is described according to the mode of multiple embodiment, not each embodiment only comprises an independently technical scheme.So describe in description be only used to clear for the purpose of; description should integrally be understood by those skilled in the art, and regards technical scheme involved in each embodiment as the mode that mutually can be combined into different embodiment to understand protection scope of the present invention.
The foregoing is only the schematic detailed description of the invention of the present invention, and be not used to limit scope of the present invention.Any those skilled in the art, the equivalent variations done under the prerequisite not departing from design of the present invention and principle, amendment and combination, all should belong to the scope of protection of the invention.
Claims (4)
1. the manufacture method for the mould of measuring tempeature in casting process, its accurate temperature measurement realizing in parts of Casting process by arranging the quartz ampoule with thermocouple that directly can touch die cavity on formwork, it is characterized in that, it comprises the steps
Steps A, manufactures the wax-pattern of described part, at the point for measuring temperature position of described wax-pattern welding rod wax; Described rod wax is for the formation of the pipeline be communicated with described die cavity;
Step B, utilizes the wax-pattern of steps A to prepare formwork, in the described formwork process of preparation, keeps described rod wax end face not covered by die casing material;
Step C, after dewaxing treatment is carried out to the formwork of step B, described quartz ampoule is put into described pipeline, and the gap between described quartz ampoule and described pipeline uses the mixture filling of resistance to guncotton, fire sand and shell slurry processed and fire sand from the inside to the outside successively, and drying is carried out to the mixture of outermost described shell slurry processed and fire sand process, so far, the manufacture of mould is completed.
2. method according to claim 1, it is characterized in that, in step, described rod wax length 3-10mm shorter in described quartz ampoule length, described rod wax comprises an excellent body and termination, described excellent body diameter 5-12mm larger than described quartz tube, described tip diameter 5-8mm larger than described excellent body diameter, the length of described termination and the length ratio of described excellent body are 1:3-1:5.
3. the mould of a method manufacture according to claim 1, it is characterized in that, it comprises one for the die cavity 10 of casting described part and the pipeline 11 for placing described quartz ampoule 2 be communicated with described die cavity 10, and the gap between described quartz ampoule 2 and described pipeline 11 uses mixture 23 filling of resistance to guncotton 21, fire sand 22 and shell slurry processed and fire sand from the inside to the outside successively.
4. mould according to claim 3, it is characterized in that, described pipeline comprises the tubule direct-connected with described die cavity and the extra heavy pipe direct-connected with described tubule, described capillary diameter 5-12mm larger than described quartz tube, described extra heavy pipe diameter 5-8mm larger than described capillary diameter, the length of described extra heavy pipe and the length ratio of described tubule are 1:3-1:5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410735092.8A CN104439062B (en) | 2014-12-08 | 2014-12-08 | Mould and the manufacture method thereof of temperature is measured in casting process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410735092.8A CN104439062B (en) | 2014-12-08 | 2014-12-08 | Mould and the manufacture method thereof of temperature is measured in casting process |
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| CN104439062A true CN104439062A (en) | 2015-03-25 |
| CN104439062B CN104439062B (en) | 2016-11-16 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105642828A (en) * | 2016-01-11 | 2016-06-08 | 共享装备股份有限公司 | Cavity body and casting temperature measuring method for in-cavity ageing |
| CN106670406A (en) * | 2015-11-11 | 2017-05-17 | 成都兴宇精密铸造有限公司 | Die for measuring casting temperature |
| CN107884086A (en) * | 2017-11-06 | 2018-04-06 | 中国航发动力股份有限公司 | A kind of thermometric formwork and its manufacture method |
| CN110044507A (en) * | 2019-04-16 | 2019-07-23 | 清华大学 | The accurate temp measuring method of sand casting based on temperature measuring unit positioning |
| CN111889653A (en) * | 2020-07-27 | 2020-11-06 | 山东鑫聚龙动力科技集团有限公司 | Temperature measuring device for inner formwork of vacuum furnace |
| CN112642997A (en) * | 2020-12-16 | 2021-04-13 | 南通海泰科特精密材料有限公司 | Method for confirming boundary heat exchange system in casting |
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| CN110044507A (en) * | 2019-04-16 | 2019-07-23 | 清华大学 | The accurate temp measuring method of sand casting based on temperature measuring unit positioning |
| CN111889653A (en) * | 2020-07-27 | 2020-11-06 | 山东鑫聚龙动力科技集团有限公司 | Temperature measuring device for inner formwork of vacuum furnace |
| CN112642997A (en) * | 2020-12-16 | 2021-04-13 | 南通海泰科特精密材料有限公司 | Method for confirming boundary heat exchange system in casting |
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| Publication number | Publication date |
|---|---|
| CN104439062B (en) | 2016-11-16 |
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Address after: 412002 Dong Jiaduan, Zhuzhou, Hunan Patentee after: China Hangfa South Industrial Co. Ltd. Address before: 412002 Dong Jiaduan, Zhuzhou, Hunan Patentee before: China Southern Airlines Industry (Group) Co., Ltd. |