CN1093012C - Vacuum deaerating thin-shell wax mould method - Google Patents
Vacuum deaerating thin-shell wax mould method Download PDFInfo
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- CN1093012C CN1093012C CN00119618A CN00119618A CN1093012C CN 1093012 C CN1093012 C CN 1093012C CN 00119618 A CN00119618 A CN 00119618A CN 00119618 A CN00119618 A CN 00119618A CN 1093012 C CN1093012 C CN 1093012C
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Abstract
The present invention relates to a vacuum deaerating method for wax moulds with thin shells. The method comprises the following steps: firstly, pouring molten wax whose temperature is higher than a melting point (or dropping point)by 50 to 70 DEG C into a mould; quickly moving the mould into a vacuum hood, and carrying out vacuum pumping to implement exhaustion; vibrating the mould on a vibration table; separating out gas from the molten wax along with temperature cooling; reducing the viscosity of the molten wax under the action of shearing force of vibration for favorably exhausting rising gas; breaking vacuum after 10 seconds or more time according to the requirements of castings and wall thicknesses; taking the mould out, and pouring out unset molten wax in order to obtain a wax mould with a thin shell.
Description
What the present invention relates to is a kind of wax mould method, particularly a kind of vacuum deaerating thin-shell wax mould method.Belong to the foundry field.
As guarding against holder, pendant etc., adopt the method system wax-pattern of liquid wax pressure casting usually, for little ornaments for bigger slightly thin-walled goods of furniture for display rather than for use, usually adopt liquid wax freely is poured in the rubber pattern die cavity, through certain hour, not solidified wax liquid in the mould is inclined to, just make thin-shell wax mould.Owing to wax liquid bubbing and obstructed wax-pattern blibbing and the misrun of causing of rubber pattern exhaust in condensation process, in the complicated dark easier generation of concave portion of decorative pattern, wax-pattern is scrapped especially.If reduce wax liquid pouring temperature, though air blister defect reduces, the mobile difference of wax liquid causes thin portion misrun, and profile is unintelligible.By literature search, still find no report with theme of the present invention or similar document.
The objective of the invention is to overcome deficiency of the prior art, a kind of vacuum deaerating thin-shell wax mould method is provided.
Technical scheme of the present invention is as follows: at first wax liquid is poured in the mould; external mold adds gypsum by rubber pattern or rubber membrane liner and holds in the palm outward and form, and wax liquid temperature is above 50～70 ℃ an of fusing point (or dropping point), rapidly mould is moved to vacuumizing and exhausting in the vacuum (-tight) housing; and on shake table, vibrate; along with temperature reduces, gas is separated out from wax liquid, under the effect of oscillatory shear power; the wax fluid viscosity reduces; more help the gas come-up and discharge, vacuum is 0.06～0.09MPa, about 50 hertz/minute of vibration frequency.According to foundry goods and wall thickness requirement, approximately through 10 seconds or longer time, vacuum breaker takes out mould, and the wax liquid that will not solidify topples over, to make thin-shell wax mould.
The present invention has substantive distinguishing features and marked improvement, can make the no bubble in surface, have fine and smooth decorative pattern, very thin wax-pattern, and lustrous surface, third dimension are strong.
Below in conjunction with accompanying drawing the embodiment of the invention is further described:
Fig. 1 the present invention waters the wax schematic diagram
Fig. 2 vacuumizing and exhausting schematic diagram of the present invention
As shown in Figure 1 and Figure 2, at first, wax liquid 1 is poured in the mould 2, wax liquid 1 temperature is above 50～70 ℃ an of fusing point (or dropping point), advance speed mould 2 is moved to vacuumizing and exhausting in the vacuum (-tight) housing 4, and vibration on shake table 5, along with temperature reduces, gas is separated out from wax liquid, under the effect of oscillatory shear power, wax liquid 1 viscosity reduces, and more helps the gas come-up and discharges, vacuum is 0.06～0.09MPa, about 50 hertz/minute of vibration frequency.According to foundry goods and wall thickness requirement, approximately through 10 seconds or longer time, vacuum breaker takes out mould, and the wax liquid 1 that will not solidify topples over, to make thin-shell wax mould 3.
Embodiment 1
Make small-sized figure of buddha wax-pattern 3, as shown in Figure 1, image height 55mm.Pileum such as petal has 10 sharp leaves that height is different, easily feels suffocated and misrun.60 ℃ of wax liquid 1 temperature overheatings.Adopt the method for dividing the secondary casting, dividing secondary vacuum pumping.Casting for the first time is to half height of die cavity, vacuumizes to reach 0.075MPa, and after the several seconds, 1 of wax liquid rises and has bubble to emerge, and vacuum breaker takes out.Casting for the second time is full to vacuumize to die cavity mouth (overflowing below the wax chamber) again, and vacuum breaker takes out, and wax liquid 1 residual in the die cavity is inclined to.Delivery.Obtained wax-pattern 3 lustrous surfaces, no bubble, each sharp corner all can overflow, and third dimension is strong.
Embodiment 2
Make small-sized figure of buddha wax-pattern 3, head is taken one's hat off but tens of Hair hair worn in a bun or coils is arranged.Each Hair hair worn in a bun or coil such as very thin spirality.Image height 80mm.Wax liquid temperature is overheated 70 ℃.Casting at twice, secondary vacuum pumping.Vacuum 0.06MPa.Casting for the first time reaches chest, and all the other are with example 1.Full, clear, the no bubble of made wax-pattern Hair hair worn in a bun or coil decorative pattern.
Embodiment 3
System angel putto, high 100mm.Wax liquid is overheated 50 ℃.A casting and vacuumizing.Vacuum 0.09MPa.Made wax-pattern is bright and clean, and angel's wing and health junction all can be full of, no bubble.
Claims (2)
1, a kind of vacuum deaerating thin-shell wax mould method, it is characterized in that at first wax liquid (1) being poured in the mould (2), wax liquid (1) temperature is above 50～70 ℃ an of fusing point (or dropping point), advance speed mould (2) is moved to vacuumizing and exhausting in the vacuum (-tight) housing (4), and in upward vibration of shake table (5), along with temperature reduces, gas is separated out from wax liquid (1), under the effect of oscillatory shear power, wax liquid (1) viscosity reduces, more favourable gas come-up is discharged, according to foundry goods and wall thickness requirement, approximately through 10 seconds or longer time, vacuum breaker, take out mould, the wax liquid (1) that will not solidify topples over, to make thin-shell wax mould (3).
2, this vacuum deaerating thin-shell wax mould method according to claim 1, its feature are that also vacuum is 0.06～0.09Mpa, about 50 hertz/minute of vibration frequency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00119618A CN1093012C (en) | 2000-08-17 | 2000-08-17 | Vacuum deaerating thin-shell wax mould method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00119618A CN1093012C (en) | 2000-08-17 | 2000-08-17 | Vacuum deaerating thin-shell wax mould method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1281762A CN1281762A (en) | 2001-01-31 |
| CN1093012C true CN1093012C (en) | 2002-10-23 |
Family
ID=4587857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN00119618A Expired - Fee Related CN1093012C (en) | 2000-08-17 | 2000-08-17 | Vacuum deaerating thin-shell wax mould method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1093012C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013021197B3 (en) * | 2013-12-17 | 2015-02-26 | Daimler Ag | Method for producing a casting core and casting core |
| CN107313116B (en) * | 2016-04-26 | 2023-04-07 | 兰州蓝星纤维有限公司 | Exhaust device for wet spinning nozzle and using method thereof |
| CN106621473A (en) * | 2016-11-18 | 2017-05-10 | 哈尔滨天顺化工科技开发有限公司 | Carbon fiber polymer defoaming vibration device |
| CN109434017A (en) * | 2018-12-19 | 2019-03-08 | 福建省宝山机械有限公司 | A kind of wax material essence die manufacturing process |
| CN111283140A (en) * | 2020-03-03 | 2020-06-16 | 江苏新中洲特种合金材料有限公司 | Precision casting wax blank processing technology |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1012301B (en) * | 1984-10-16 | 1991-04-03 | 三洋电机株式会社 | display device |
| CN1144726A (en) * | 1995-09-06 | 1997-03-12 | 李建利 | Mechanical processing and demoulding method for small-sized three-dimensional image thin shell wax mould |
-
2000
- 2000-08-17 CN CN00119618A patent/CN1093012C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1012301B (en) * | 1984-10-16 | 1991-04-03 | 三洋电机株式会社 | display device |
| CN1144726A (en) * | 1995-09-06 | 1997-03-12 | 李建利 | Mechanical processing and demoulding method for small-sized three-dimensional image thin shell wax mould |
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| Publication number | Publication date |
|---|---|
| CN1281762A (en) | 2001-01-31 |
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