CN108907081A - The deformation control method of model casting Wax mold and model casting wax-pattern - Google Patents
The deformation control method of model casting Wax mold and model casting wax-pattern Download PDFInfo
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- CN108907081A CN108907081A CN201810821941.XA CN201810821941A CN108907081A CN 108907081 A CN108907081 A CN 108907081A CN 201810821941 A CN201810821941 A CN 201810821941A CN 108907081 A CN108907081 A CN 108907081A
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- China
- Prior art keywords
- wax
- mold
- model casting
- pattern
- temperature
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C7/00—Patterns; Manufacture thereof so far as not provided for in other classes
- B22C7/02—Lost patterns
-
- 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 present invention relates to model casting Wax mold and the deformation control methods of model casting wax-pattern, wherein model casting Wax mold includes upper die and lower die, cooling water pipeline, solenoid valve and temperature controller, upper die and lower die pairing, the hollow parts of the two are made to be combined to form the type chamber for accommodating wax-pattern, cooling water pipeline is embedded in model casting Wax mold and the setting of circulating type chamber, solenoid valve is set to the water inlet end of cooling water pipeline, and temperature controller controls electromagnetic valve switch by the temperature of the wax material of monitoring model casting Wax mold.The deformation control method of model casting Wax mold and model casting wax-pattern of the invention can be improved the dimensional stability of model casting wax-pattern, reduce the influence factor of wax-pattern size, while accelerate wax-pattern compacting efficiency, meet extensive stabilized industrial production.
Description
Technical field
The present invention relates to full form casting process, the in particular to deformation of model casting Wax mold and model casting wax-pattern
Control method.
Background technique
Model casting is that the processing technology of cast product, investment-casting are made by process such as pressure wax, shell processed, casting
It can guarantee higher dimensional accuracy and surface smoothness.Model casting belongs near net-shaped processing, is applicable to cast various conjunctions
The Complicated structure casting of gold.
To guarantee that the dimensional accuracy of cast product meets design requirement, deformation is prevented in each production process.Wherein
It is wax-pattern compacting and smelting and pouring that more process, which occurs, in deformation.
The main reason for wax-pattern deforms is to shrink unevenly.Different parts wall thickness is different, demoulds and shorten pressure for convenience
Wax time, wax-pattern mold clearing temperature are generally greater than room temperature, at this time thin-walled position cooling and shaping, and the thicker position temperature of wall thickness according to
It is so higher.Show that wax-pattern plays pendulum according to PVT curve data, meeting contracts last after depanning.Exactly different wall thickness
Cooling and contraction rate difference deforms after causing wax-pattern depanning.
The anti-deformation of hot investment casting wax-pattern pressing stage is generally by the way of pre-buried cold wax and depanning school type at present, this two
Kind method has certain limitation in terms of applicability and operability.Firstly, making cavity filling process in the pre-buried cold wax in thick big position
Product wall thickness it is uniform as far as possible.The problem of this method, is complicated die inner cavity there are abnormal curved surface or is inverted cavity, does not allow
Easily guarantee cold wax positioning stablity in mold cavity, can be rushed by casting pressure during propolizing inclined.And cold wax will generally reserve
Spine is positioned, wax is formed after casting can not coat cold wax puncture tip completely, cause positioning spine to be exposed to wax pattern surface, need worker
Repair wax-pattern.The cold wax quantity of intricate casting is more, needs to open up a variety of cold wax-patterns tools, and there is also fixation is not in mold for cold wax
Stable problem.Secondly, wax-pattern school shape tooling depanning school type, it is desirable that be quickly placed on after wax-pattern depanning and wax-pattern design size phase
It is consistent in the type tooling of type wax-pattern school, pass through and apply external pressure and realize wax-pattern sizing.This mode is suitable for space structure letter
Single plane school type, it is larger for space profiles dimension correction difficulty.And the biggish product of batch needs to do a large amount of wax-pattern schools type
Tooling, wax-pattern school type tooling is costly, needs to occupy that work factory site is big, and wax-pattern production efficiency is low.
Summary of the invention
The purpose of the present invention is in order to solve the above problem, the present invention provides a kind of model casting Wax mold and fusible pattern casting
Make the deformation control method of wax-pattern.
According to an aspect of the present invention, a kind of model casting Wax mold, including upper die and lower die, cooling water pipe are provided
Road, solenoid valve and temperature controller, upper die and lower die pairing make the hollow parts of the two be combined to form the type chamber for accommodating wax-pattern, cooling
Waterpipe is embedded in model casting Wax mold and the setting of circulating type chamber, solenoid valve are set to the water inlet end of cooling water pipeline,
Temperature controller controls the switch of solenoid valve by the temperature of monitoring model casting Wax mold.
Wherein, temperature controller includes thermocouple probe and controller, and thermocouple probe is embedded in model casting Wax mold
Wax-pattern thickness is greater than the corresponding position of 20mm, and thermocouple probe is connect with controller, and controller is connect with solenoid valve.
Wherein, the water inlet end of cooling water pipeline and water outlet are connected by external frozen water machine, form cooling water pipeline
Closed circuit.
Wherein, model casting Wax mold further includes cope plate and lower template, and cope plate is bonded the top setting of upper mold, under
Template is bonded the bottom setting of lower die.
According to another aspect of the present invention, a kind of deformation control method of model casting wax-pattern is provided, including uses this molten
Die cast Wax mold carries out the step of pressure wax.
Wherein, the step of carrying out pressure wax using model casting Wax mold include：
Most suitable mold temperature section is preset in the controller of the temperature controller.
It is filled with wax material to the model casting Wax mold, while controlling the temperature of wax material in mold, when the heat of temperature controller
When the temperature of the even probe in detecting of point reaches the highest preset value in most suitable mold temperature section, controller is outputed signal to, controller
The solenoid valve is communicated instructions to after receiving signal, opens solenoid valve, cooling water enters mold, and mold temperature gradually decreases,
When the temperature of the thermocouple probe in detecting of temperature controller is lower than the minimum predetermined value in most suitable mold temperature section, control is outputed signal to
Device processed, controller communicate instructions to the solenoid valve after receiving signal, close solenoid valve, stop water inlet, until wax material is full of.
Maintenance condition of propolizing is constant, so that wax-pattern is continued pressure maintaining cooling a period of time in mold inner-cavity, forms complete hard
Wax-pattern.Wherein, continuing the pressure maintaining cooling time is 60~300s.
Wherein, most suitable mold temperature section is 18~20 DEG C.
The invention has the advantages that：
1. can be improved the dimensional stability of model casting wax-pattern, the influence factor of wax-pattern size is reduced, while accelerating wax
It is molded efficiency processed, meets extensive stabilized industrial production.
2. compared to cold wax and production wax-pattern school shape tooling is placed, what the present invention used increases cooling temperature regulating device energy to mold
Mold and tooling quantity are enough reduced, saves money, reduces the occupancy of production site.To the product of batch production, pass through temperature control mould
The primary compacting of tool can reduce the operational sequence for placing cold wax and depanning school shape.Mold temperature is stablized simultaneously, does not have in batch
Mold cooling is waited after compacting, may be implemented continuously to suppress.
Detailed description of the invention
By reading the following detailed description of the preferred embodiment, various other advantages and benefits are common for this field
Technical staff will become clear.The drawings are only for the purpose of illustrating a preferred embodiment, and is not considered as to the present invention
Limitation.And throughout the drawings, the same reference numbers will be used to refer to the same parts.In the accompanying drawings：
The schematic diagram of Fig. 1 model casting Wax mold of embodiment according to the present invention.
Specific embodiment
The illustrative embodiments of the disclosure are more fully described below with reference to accompanying drawings.Although showing this public affairs in attached drawing
The illustrative embodiments opened, it being understood, however, that may be realized in various forms the disclosure without the reality that should be illustrated here
The mode of applying is limited.It is to be able to thoroughly understand the disclosure on the contrary, providing these embodiments, and can be by this public affairs
The range opened is fully disclosed to those skilled in the art.
As shown in Figure 1, model casting Wax mold, including upper mold 2, lower die 4, cooling water pipeline, solenoid valve 9 and temperature controller
7,4 pairing of upper mold 2 and lower die makes the hollow parts of the two be combined to form the type chamber 6 for accommodating wax-pattern, and cooling water pipeline is embedded in molten
In die cast Wax mold and circulating type chamber 6 is arranged, and solenoid valve 9 is set to the water inlet end of cooling water pipeline, and temperature controller 7 passes through prison
Survey the switch of the temperature control solenoid valve 9 of the intracavitary wax material of model casting Wax mold type.
Temperature controller 7 includes thermocouple probe and controller 7, and thermocouple probe is embedded in the wax-pattern of model casting Wax mold
Thickness is greater than the corresponding position of 20mm, and thermocouple probe is connect with controller 7, and controller 7 is connect with solenoid valve 9.
The water inlet end of cooling water pipeline and water outlet are connected by external frozen water machine (not shown), make cooling water pipe
Road forms closed circuit.
Model casting Wax mold further includes cope plate 1 and lower template 5, and cope plate 1 is bonded the top setting of upper mold 2, under
Template 2 is bonded the bottom setting of lower die 4.
Embodiments of the present invention are as follows, and mold uses upper lower open die, open up in the position that upper and lower mould avoids mold cavity
Uniformly distributed cooling-water duct installs solenoid electric valve 9, control valve and temperature control to reduce mold temperature at cooling water inlet pipe
Device 7 passes through circuit connection.Temperature controller is by the wax material temperature that is embedded in the thermocouple assay mold cavity of mould inside and exports
Electric signal.The suitable mold temperature section of setting, when detecting temperature is more than to set maximum temperature value, solenoid electric valve 9 is opened,
Cooling water enters mold, and mold temperature gradually decreases；When thermocouple assay temperature is lower than setting lowest temperature angle value, Electromagnetic Control
Valve 9 is closed, and cooling water stops entering mold.
After the mold temperature that Die temperature control device 7 monitors reaches lowest set temperature value or less, original condition of propolizing is maintained,
So that wax-pattern is quickly cooled down solidification on the cooling surface that a period of time, wax pattern is contacted with mold of mold inner-cavity pressure maintaining, form hard layer,
The wax material of inner molten state also gradually cools down.Pressure maintaining terminates, and opens mold and takes out wax-pattern.In the steady of low temperature when wax-pattern depanning
Determine state, no longer deforms.
The present invention experiments prove that, when pressure maintaining cooling time be 60~300s, Wax mold temperature range be 18~20
DEG C when, wax-pattern can be made to be fully cooled, surface forms hard layer, and the wax material of internal molten state is fully cooled, entire wax-pattern
In low-temperature stabilization state, not redeformation.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by anyone skilled in the art,
It should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with the protection model of the claim
Subject to enclosing.
Claims (8)
1. model casting Wax mold, which is characterized in that including upper mold (2), lower die (4), cooling water pipeline, solenoid valve (9) and
Temperature controller (7), the upper mold (2) and the lower die (4) pairing make the hollow parts of the two be combined to form the type chamber for accommodating wax-pattern
(6), the cooling water pipeline is embedded in the model casting Wax mold and is arranged around the type chamber (6), the electromagnetism
Valve (9) is set to the water inlet end of the cooling water pipeline, and the temperature controller (7) is by monitoring in the model casting Wax mold
Wax material temperature control the switch of the solenoid valve (9).
2. model casting Wax mold as described in claim 1, which is characterized in that
The temperature controller (7) includes thermocouple probe and controller (7), and the thermocouple probe is embedded in the model casting wax
The wax-pattern thickness of mould mold is greater than the corresponding position of 20mm, and the thermocouple probe is connect with the controller (7), the control
Device (7) is connect with the solenoid valve (9).
3. model casting Wax mold as described in claim 1, which is characterized in that
The water inlet end of the cooling water pipeline and water outlet are connected by external frozen water machine, close the cooling water pipeline formation
Close circuit.
4. model casting Wax mold as described in claim 1, which is characterized in that
The model casting Wax mold further includes cope plate (1) and lower template (5), and the cope plate (1) is bonded the upper mold
(2) top setting, the lower template (2) are bonded the bottom setting of the lower die (4).
5. the deformation control method of model casting wax-pattern, which is characterized in that including using such as any institute of Claims 1 to 5
The step of model casting Wax mold stated carries out pressure wax.
6. deformation control method as claimed in claim 5, which is characterized in that pressed using the model casting Wax mold
The step of wax includes：
Most suitable mold temperature section is preset in the controller of the temperature controller (7)；
It is filled with wax material to the model casting Wax mold, while controlling the temperature of wax material in mold, when the hot spot of temperature controller (7)
When the temperature of even probe in detecting reaches the highest preset value in most suitable mold temperature section, controller (7), controller are outputed signal to
(7) solenoid valve (9) are communicated instructions to after receiving signal, open solenoid valve (9), cooling water enters mold, mold temperature
It gradually decreases, when the temperature of the thermocouple probe in detecting of temperature controller (7) is lower than the minimum predetermined value in most suitable mold temperature section,
It outputs signal to controller (7), controller (7) communicates instructions to the solenoid valve (9) after receiving signal, closes solenoid valve (9)
It closes, stops water inlet, until wax material is full of；
Maintenance condition of propolizing is constant, so that wax-pattern is continued pressure maintaining cooling a period of time in mold inner-cavity, forms complete hard wax-pattern；
By hard wax-pattern depanning.
7. deformation control method as claimed in claim 6, which is characterized in that
The time for continuing pressure maintaining is 60~300s.
8. deformation control method as claimed in claim 6, which is characterized in that
The most suitable mold temperature section is 18~20 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810821941.XA CN108907081A (en) | 2018-07-24 | 2018-07-24 | The deformation control method of model casting Wax mold and model casting wax-pattern |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810821941.XA CN108907081A (en) | 2018-07-24 | 2018-07-24 | The deformation control method of model casting Wax mold and model casting wax-pattern |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108907081A true CN108907081A (en) | 2018-11-30 |
Family
ID=64417783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810821941.XA Pending CN108907081A (en) | 2018-07-24 | 2018-07-24 | The deformation control method of model casting Wax mold and model casting wax-pattern |
Country Status (1)
| Country | Link |
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| CN (1) | CN108907081A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114199176A (en) * | 2021-12-14 | 2022-03-18 | 中国航发南方工业有限公司 | Mold and method for evaluating size deviation of investment casting |
| CN114951586A (en) * | 2022-05-30 | 2022-08-30 | 阿诺诗(广东)精密金属科技有限公司 | Cold and hot paste application structure of precision casting and application method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3698468A (en) * | 1969-11-19 | 1972-10-17 | Billy C Hudson | Investment casting apparatus |
| US4246954A (en) * | 1979-02-01 | 1981-01-27 | Wasko Gold Products Corp. | Casting tree for tandem mold preparation and method of use thereof |
| CN101531040A (en) * | 2008-03-13 | 2009-09-16 | 鸿富锦精密工业（深圳）有限公司 | Mould |
| CN203316674U (en) * | 2013-05-25 | 2013-12-04 | 衡阳市嘉励运动器材有限公司 | Wax injection machine capable of controlling temperature of die |
| CN103706760A (en) * | 2014-01-06 | 2014-04-09 | 安徽厚林精密金属科技有限公司 | Method for precisely casting top cover of mincing machine |
| CN206652935U (en) * | 2017-05-02 | 2017-11-21 | 凯特工业科技（惠州）有限公司 | One kind penetrates wax machine |
-
2018
- 2018-07-24 CN CN201810821941.XA patent/CN108907081A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3698468A (en) * | 1969-11-19 | 1972-10-17 | Billy C Hudson | Investment casting apparatus |
| US4246954A (en) * | 1979-02-01 | 1981-01-27 | Wasko Gold Products Corp. | Casting tree for tandem mold preparation and method of use thereof |
| CN101531040A (en) * | 2008-03-13 | 2009-09-16 | 鸿富锦精密工业（深圳）有限公司 | Mould |
| CN203316674U (en) * | 2013-05-25 | 2013-12-04 | 衡阳市嘉励运动器材有限公司 | Wax injection machine capable of controlling temperature of die |
| CN103706760A (en) * | 2014-01-06 | 2014-04-09 | 安徽厚林精密金属科技有限公司 | Method for precisely casting top cover of mincing machine |
| CN206652935U (en) * | 2017-05-02 | 2017-11-21 | 凯特工业科技（惠州）有限公司 | One kind penetrates wax machine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114199176A (en) * | 2021-12-14 | 2022-03-18 | 中国航发南方工业有限公司 | Mold and method for evaluating size deviation of investment casting |
| CN114951586A (en) * | 2022-05-30 | 2022-08-30 | 阿诺诗(广东)精密金属科技有限公司 | Cold and hot paste application structure of precision casting and application method thereof |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: No. 5 Yongxiang North Road, Haidian District, Beijing 100094 Applicant after: Beijing Bermuda Aircraft Material High-tech Co., Ltd. Address before: No. 5 Yongxiang North Road, Haidian District, Beijing 100094 Applicant before: Beijing Baimu Aeronautic Material High-Technology Co., Ltd. |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181130 |