CN106134339B - A kind of manufacture method of pouring type water-soluble material mould - Google Patents
A kind of manufacture method of pouring type water-soluble material mouldInfo
- Publication number
- CN106134339B CN106134339B CN200810075893.0A CN200810075893A CN106134339B CN 106134339 B CN106134339 B CN 106134339B CN 200810075893 A CN200810075893 A CN 200810075893A CN 106134339 B CN106134339 B CN 106134339B
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- water
- mould
- soluble material
- material mould
- perfusion
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Abstract
A manufacture method for pouring type water-soluble material mould, step is: (1) is according to the requirement design perfusion mould of dimensional tolerance, form and position tolerance and surface roughness; (2) by water-soluble material and water according to (1.0～1.2): 1 ratio is mixed, mixture after deaeration is processed perfusion to perfusion mould; (3) the water-soluble material mould obtaining is at room temperature placed and made its sclerosis, put into baking oven and carry out drying and processing; (4) the water-soluble material mould obtaining is sealed and demoulding processing; (5) removing of water-soluble material mould, putting into hot water by the composite product that uses water-soluble material mould to make soaks, destroy release materials and the encapsulant of mold outer surface, then water rinses mould inside, and be aided with external force and remove all water-soluble material moulds, until remove clean.
Description
Technical field
The invention belongs to technical field of composite materials, relate to a kind of water-soluble material that adopts and manufacture pouring type mouldMethod.
Background method
Composite has high specific strength and high ratio modulus, is applied to the civil areas such as automobile, building materials, physical culture,Be applied even more extensively in aerospace field. Metal material is commonly used to manufacture the mould that composite material forming is used,But metal die has its limitation in use, for example for some near closed hollow rings, complex-shaped surface mould or inThe product of hollow structure, as adopted metal die, often needs polylith to combine, not only design complexity, systemThe expense of making is high, the cycle is long, and is difficult for ensureing dimensional accuracy, demoulding difficulty. Employing water-soluble material is manufacturedMould can solve this difficult problem.
At present the mould manufacturing method of application water-soluble material is divided into following steps: designing mould, material mix,Mixture is inserted die modeling, drying and processing, demoulding processing etc., the water-soluble material that adopts this kind of method to manufactureMaterial mould exists some shortcomings part, and for example mixture is put into oven for drying processing together with mould, due toMold materials is different from the thermal coefficient of expansion of water-soluble material, causes the size of water-soluble material mould to depart from and establishesEvaluation; It is generally in the coated barrier film in the surface of water-soluble material mould, spacer fabric that the demoulding of doing is processedEtc. release materials, the use of release materials causes the increase of composite product inside surface roughness, dimensional accuracyDecline; In addition, before processing, the demoulding do not carry out encapsulation process, if release materials is coated well not,Be not enough to stop the immersion of resin in composite product forming process, will give the demoulding of composite productBring very large difficulty.
Therefore, just need the more rational water-soluble mold materials manufacture method of one, to improve composite systemThe dimensional accuracy of part, reduce surface roughness, guarantee carrying out smoothly of the demoulding.
Summary of the invention
Technology of the present invention is dealt with problems and is: overcome the deficiency of existing manufacture method, proposed a kind of can raisingThe pouring type water-soluble material mould of composite product dimensional accuracy, the surface roughness that reduces, the easy demouldingManufacture method.
Technical solution of the present invention is: a kind of manufacture method of pouring type water-soluble material mould, stepAs follows:
(1) according to the requirement design perfusion mould of dimensional tolerance, form and position tolerance and surface roughness;
(2) water-soluble material is mixed with water, mixture is extremely perfusion mould of perfusion after deaeration is processed;
(3) water-soluble material mould step (2) being obtained hardens, drying and processing;
(4) water-soluble material mould step (3) being obtained seals and demoulding processing.
Also comprise the removing step of water-soluble material mould, compound by what use water-soluble material mould to makeIt is that the hot water of 50 DEG C～80 DEG C soaked after 10～30 minutes that material product is put into temperature, destroys mould appearanceThe release materials of face and encapsulant, then water rinses mould inside, and it is all water-soluble to be aided with external force removalProperty material mould, until remove clean.
Described step is mixed water-soluble material in (2) with water, and mixture is carried out to the method for deaeration processingFor by raw material and water according to (1.0～1.2): 1 ratio is mixed, and after mixing, uses agitator to stir 2～5Minute, stir, then adopt vacuum defoamation or vibration deaeration method get rid of mixture stir time sweep alongAir, 3～10 minutes deaeration time.
In described step (3) to water-soluble material mould harden, the method for drying and processing is for by deaeration placeMixture after reason injects in the perfusion die cavity of mould, at room temperature places and makes its sclerosis, 80～100 pointsAfter clock by water-soluble material mould from perfusion with taking out mould, put into baking oven and carry out drying and processing, baking oven temperatureSpend 110 DEG C～130 DEG C.
In described step (4), water-soluble material mould is sealed with the method for demoulding processing as using sealingMaterial is sprayed on the surface of water-soluble material mould equably, sprays 5～8 times, and after every spraying one time, willDescribed mould is put into baking oven dries, and under 70 DEG C of conditions, dries 10～15 minutes; Then after encapsulation processDie surface, use demoulding wax or liquid releasing agent to apply equably, number of times is determined by release materials.
The present invention's advantage is compared with prior art:
(1) first the inventive method carries out encapsulation process before the demoulding is processed, and seals water-soluble die surfaceMicropore, can prevent that release materials is coated and stop soaking of resin in composite product forming process when good notEnter, effectively prevent the generation of mold sticking in composite material shaping process, make the de-of composite productModulo operation is easy, has also improved the quality of composite product;
(2) mode that the inventive method takes mixture to separate with mould in the time of drying and processing, is not subject to mold hotThe impact of expanding, is improved the manufacturing dimension precision of water-soluble material mould;
(3) the inventive method adopts mould release wax or liquid releasing agent in the time that the demoulding is processed, and has avoided using isolationThe problem that the composite product inner surface dimensional discrepancy that the release materials such as film cause and surface roughness increase;
(4) the present invention by raw material and water according to (1.0～1.2): 1 ratio is mixed, and can make raw materialFully mix with water, the water-soluble material viscosity obtaining is beneficial to follow-up deaeration and processes operation;
(5) the inventive method is in the time that mould is removed, by the composite system that uses water-soluble material mould to makeIt is that the hot water of 50 DEG C～80 DEG C soaks that part is put into temperature, can make water-soluble material carry out molten fullySeparate, destroy the demoulding, the encapsulant of mold outer surface, make the removing of water-soluble material mould more quick,And can improve the surface smoothness of composite product.
Brief description of the drawings
Fig. 1 is the FB(flow block) of the inventive method.
Detailed description of the invention
As shown in Figure 1, be the flow chart of manufacture method of the present invention, first according to the water-soluble material that will manufactureThe design feature of mould is determined version and the die joint of mould, is beneficial to after the perfusion and sclerosis of mixtureDeviate from, mould should have enough strength and stiffness, can meet dimensional tolerance, the shape of water-soluble material mouldThe requirement of position tolerance and surface roughness. Design of Dies is complete, and drawing send process unit's processing. Perfusion is usedMould should do surface treatment before use, and method pastes teflon or painting at use face after being oil removing, cleaningBrush vegetable oil is stand-by. Now, water-soluble material is mixed with water, raw material and water are according to (1.0～1.2): 1Ratio mix, after mixing, use agitator to stir 2～5 minutes, stir, then adopt vacuum de-The method of bubble or vibration deaeration is got rid of the air of sweeping along when mixture stirs, 3～10 minutes deaeration time, chamberTemperature is placed a period of time under condition makes its sclerosis, after 80～100 minutes, water-soluble material mould is used from perfusionIn mould, take out, put into baking oven and carry out drying and processing, 110 DEG C～130 DEG C of oven temperatures. Subsequently to water-solubleSurface treatment before material mould uses, surface treatment comprises encapsulation process and two steps of demoulding processing.Encapsulation process is in order to the micropore on closed mould surface, and method is for being used encapsulant to be sprayed on equably water-solubleThe surface of material mould, sprays 5～8 times, and after every spraying one time, described mould is put into baking oven and dry,Under 70 DEG C of conditions, dry 10～15 minutes. Demoulding processing is in order to make composite product in forming process, with mould adhesion, be not convenient to the demoulding, method is the die surface after encapsulation process, uses demoulding wax or liquidBody releasing agent applies equably, and number of times is determined by release materials. Water-soluble material mould after surface treatmentCan be used for the manufacture of composite, product moulding is removed after auxiliary material, will use water-soluble material mould systemIt is that the hot water of 50 DEG C～80 DEG C soaked after 10～30 minutes that the composite product becoming is put into temperature, destroysThe release materials of mold outer surface and encapsulant, then water rinses mould inside, and is aided with external force removalAll water-soluble material moulds, until remove clean.
Below in conjunction with embodiment, method scheme of the present invention is described further:
Embodiment 1
(1) 400 grams of raw material are mixed with 400 grams of water, with electric mixer stirring 4 minutes, nowMix; Be placed in closed container, vacuumize by vavuum pump, to vacuum-0.099Mpa,Keep 8 minutes; The mixture injection die cavity that takes out vacuum defoamation has pasted the mould for perfusion of teflon,Leave standstill 90 minutes at ambient temperature; From the water-soluble material mould that takes out the shaping of having hardened mould for perfusionTool, puts into subsequently 130 DEG C, baking oven and dries 2.5 hours, and after insulation finishes, oven temperature is cooled to room temperature naturally,Take out mould.
(2) spray equably encapsulant with spray gun at die surface, totally 8 times, after every spraying one time,Mould is put into 70 DEG C, baking oven and is dried 15 minutes. Die surface after encapsulation process applies demoulding wax equably, altogether6 times, 20 minutes, interval between every time.
(3) the water-soluble material mould after surface treatment is for the manufacture of composite, forming materials to be compositeRemove after auxiliary material, composite product put into the container that fills 60 DEG C of hot water and soak 20 minutes,Under tap, rinse subsequently, apply external force simultaneously with hand, within 10 minutes, rear mold is removed totally, demoulding workComplete.
Embodiment 2
(1) 84 grams of raw material are mixed with 70 grams of water, with electric mixer stirring 2 minutes, nowMix; The mould for perfusion that mixture is injected to die cavity and has been coated with vegetable oil, is placed on shake table and shakesMoving 5 minutes; Under room temperature condition, leave standstill 80 minutes; What hardened and be shaped with taking-up mould from perfusion is water-solubleProperty material mould, putting into subsequently 120 DEG C, baking oven dries 1.5 hours, after insulation finishes, is naturally cooled to room temperature,Take out mould.
(2) spray equably encapsulant with spray gun at die surface, totally 6 times, after every spraying one time,Mould is put into 70 DEG C, baking oven and is dried 10 minutes. Die surface after encapsulation process is brushing liquid releasing agent equably,Totally 4 times, 30 minutes, interval between every time.
(3) the water-soluble material mould after surface treatment is for the manufacture of composite, forming materials to be compositeRemove after auxiliary material, composite product put into the container that fills 50 DEG C of hot water and soak 15 minutes,Water rinses subsequently, and within 5 minutes, rear mold is removed totally, and stripper completes.
The content not being described in detail in description of the present invention belongs to those skilled in the art's common practise.
Claims (4)
1. a manufacture method for pouring type water-soluble material mould, is characterized in that step is as follows:
(1) according to the requirement design perfusion mould of dimensional tolerance, form and position tolerance and surface roughness;
(2) water-soluble material is mixed with water, mixture is extremely perfusion mould of perfusion after deaeration is processed;
(3) water-soluble material mould step (2) being obtained hardens, drying and processing;
(4) water-soluble material mould step (3) being obtained seals and demoulding processing, and method is for makingBe sprayed on equably the surface of water-soluble material mould with encapsulant, spray every spraying one time 5～8 timesAfter, described mould is put into baking oven and dry, under 70 DEG C of conditions, dry 10～15 minutes; Then in sealingDie surface after treatment, uses demoulding wax or liquid releasing agent to apply equably, and number of times is true by release materialsFixed.
2. the manufacture method of a kind of pouring type water-soluble material mould according to claim 1, its spyLevy and be: also comprise the removing step of water-soluble material mould, be about to use water-soluble material mould to makeIt is that the hot water of 50 DEG C～80 DEG C soaked after 10～30 minutes that composite product is put into temperature, destroys mouldThe release materials of outer surface and encapsulant, then water rinses mould inside, and it is all to be aided with external force removalWater-soluble material mould, until remove clean.
3. the manufacture method of a kind of pouring type water-soluble material mould according to claim 1 and 2,It is characterized in that: described step is mixed water-soluble material in (2) with water, and mixture carry out deaeration placeThe method of reason be by raw material and water according to (1.0～1.2): 1 ratio is mixed, and mixing is use agitator afterwardsStir 2～5 minutes, stir, then adopt the method for vacuum defoamation or vibration deaeration to get rid of mixtureThe air of sweeping along when stirring, 3～10 minutes deaeration time.
4. the manufacture method of a kind of pouring type water-soluble material mould according to claim 1 and 2,It is characterized in that: in described step (3) to water-soluble material mould harden, the method for drying and processing isMixture after treatment deaeration is injected in the perfusion die cavity of mould, at room temperature places and make its sclerosis,After 80～100 minutes by water-soluble material mould from perfusion with taking out mould, put into baking oven and carry out oven dry placeReason, 110 DEG C～130 DEG C of oven temperatures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810075893.0A CN106134339B (en) | 2008-06-30 | 2008-06-30 | A kind of manufacture method of pouring type water-soluble material mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810075893.0A CN106134339B (en) | 2008-06-30 | 2008-06-30 | A kind of manufacture method of pouring type water-soluble material mould |
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| CN106134339B true CN106134339B (en) | 2012-08-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200810075893.0A Active CN106134339B (en) | 2008-06-30 | 2008-06-30 | A kind of manufacture method of pouring type water-soluble material mould |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110561782A (en) * | 2019-08-26 | 2019-12-13 | 长春长光宇航复合材料有限公司 | Composite material secondary curing molding method based on internal grid rib structure and application |
| CN114131837A (en) * | 2021-11-26 | 2022-03-04 | 南京航空航天大学 | Method for preparing complex soft structure by using water-soluble template |
-
2008
- 2008-06-30 CN CN200810075893.0A patent/CN106134339B/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110561782A (en) * | 2019-08-26 | 2019-12-13 | 长春长光宇航复合材料有限公司 | Composite material secondary curing molding method based on internal grid rib structure and application |
| CN114131837A (en) * | 2021-11-26 | 2022-03-04 | 南京航空航天大学 | Method for preparing complex soft structure by using water-soluble template |
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