CN107650375A - Sintering Model resin impregnated method and mogullizer - Google Patents
Sintering Model resin impregnated method and mogullizer Download PDFInfo
- Publication number
- CN107650375A CN107650375A CN201710868977.9A CN201710868977A CN107650375A CN 107650375 A CN107650375 A CN 107650375A CN 201710868977 A CN201710868977 A CN 201710868977A CN 107650375 A CN107650375 A CN 107650375A
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- impregnant
- sintering
- tank body
- mogullizer
- interface
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y40/00—Auxiliary operations or equipment, e.g. for material handling
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
Abstract
Technological principle of the invention based on vacuum fill, cure under pressure, it is proposed that a kind of polystyrene Sintering Model resin impregnated technique and production equipment, post-process the problem of effect is bad for existing painting way and provide new method.Specially：It will be placed in using laser sintered polystrene phantom in closed cavity, extract the air in cavity, establish the vacuum environment that absolute pressure is less than 40KPa, inject impregnant, model is set fully to be contacted with impregnant, the rapid pressure improved in closed cavity keeps appropriate time to 150KPa is more than, so that impregnant enters model under pressure, reach after curing reaction and improve model surface quality and mechanical property.
Description
Technical field
The present invention relates to a kind of Sintering Model resin impregnated method and mogullizer, belong to new material processing method
Technical field.
Background technology
Polystyrene belongs to thermoplastic, fusible, bonding, curable shaping after cooling after it is heated.Polystyrene
Material hydroscopicity is small, and only 0.05%, shrinkage factor is also smaller, and the dusty material fusing point is relatively low, and sintering warpage is small, and formability is good
Good, and can reuse, its dusty material after modified, can alternatively property be laser sintered uses dusty material.It is sintered
Drip molding can further improve intensity after infiltrating resin and be used as functor；After soaking cured processing, hot investment casting can also be used as
Wax-pattern use.It is currently that a kind of domestic the most widely used selective selective laser sintering is quick because its cost is cheap
Moulding material.
Subject matter existing for laser sintered polystrene phantom is at present：The intensity of direct green part is not high, works as temperature
When field control is bad, the easy warpage of sintering product；In addition, if the prototype surface of sintering is not smooth enough, or deposited on its curved surface
In small stair and small defect；The thin-walled of prototype and some small feature structures (such as isolated pillar, thin muscle) possible intensity, rigidity is not
Foot；Some sizes, the shape of the prototype of sintering may be accurate not enough；The color of article surface may not meet wanting for product
The problems such as asking.To improve the surface appearance of sintering product and mechanical property etc., after will typically being carried out to sintered part accordingly
Handling process.Aftertreatment technology refers to the prototype taking-up sintering, is first cleared up, to remove dusting, exposes article surface,
Again prototype is carried out oozing resin or the process such as solidified, repaired, polished, polished after oozing wax.
The aftertreatment technology of polystyrene Sintering Model is mostly not ideal at present, prevents the mechanical property of molding part from expiring
The requirement of sufficient functional article.
The content of the invention
The problem of effect is undesirable is post-processed for existing polystyrene Sintering Model, the invention discloses one kind to sinter mould
Type resin impregnated method and mogullizer.
The present invention is achieved by the following technical solutions：
In a first aspect, the invention provides a kind of Sintering Model resin impregnated method, it comprises the following steps：
Sintering resin mould and impregnant are prepared respectively；
Under the absolute pressure no more than 40KPa, sintering resin mould is submerged in impregnant, and make the liquid level of impregnant
It is higher by the surface at least 20mm of sintering resin mould；
Under the absolute pressure not less than 150KPa, impregnant is set to infiltrate sintering resin mould；
After infiltration terminates, baking and curing and eventually processing are carried out.
Preferably, the preparation method of the sintering resin mould is the method using laser sintered 3D printing.
Preferably, the preparation method of the impregnant is：By epoxy resin, amine curing agent and reactive diluent
Mixed, after stirring, obtain the impregnant.
Second aspect, present invention also offers a kind of mogullizer, and it includes tank body, lid and bin, the lid
Body is covered on the oral area of tank body, and the bin is arranged in tank body, and the side of the tank body connects provided with vacuum interface, compressed air
Mouth and impregnant interface, the bottom of tank body are provided with relief valve interface, impregnant flexible pipe are connected with the inside of the impregnant interface,
One end of the impregnant flexible pipe is arranged at the top of bin.
Preferably, the lid passes through locking cylinder and tank body tight closure.
Preferably, the top of the lid is provided with pressure sensor, relief valve connection, pressure gauge and observation window.
Preferably, the upper outside of the tank body is provided with the can opening truss for being used for switching lid.
Impregnation technology is to penetrate into the cured reaction of porous material under stress using impregnant and reach and fill up hole
Purpose, it is a new technology of modern development in science and technology.General principle of the invention based on infiltration, with reference to polystyrene Sintering Model
The problem of existing, it is proposed that the method post-processed using this kind of technique, and for technical process propose technological parameter and
The different requirements of equipment, make every effort to solve the problems such as polystyrene Sintering Model surface appearance and bad mechanical property.
Compared with prior art, the present invention has following beneficial effect：
1st, polystrene phantom first passes through in pressure vessel vacuumize after carry out surface resin infiltration again, eliminate model
The micronic dust and gas of pore interior；
2nd, under high pressure by inside resin impregnated to model, compared to brushing method, infiltration is more deeply thorough, after solidification
Polystrene phantom surface is more smooth, and mechanical property is more excellent；
3rd, the present invention realizes the last handling process of polystrene phantom in the careful equipment for model, easily carries out
Process control, it is easy to carry out automation popularization on engineer applied.
Brief description of the drawings
The detailed description made by reading with reference to the following drawings to non-limiting example, further feature of the invention,
Objects and advantages will become more apparent upon：
Fig. 1 is the structural representation of the mogullizer in the present invention；
Fig. 2 is the process flow diagram of the infiltration process of the present invention；
In figure：1st, can opening truss；2nd, vacuum interface；3rd, compressed air interface；4th, tank body；5th, bin；6th, impregnant interface；
7th, impregnant flexible pipe；8th, locking cylinder；9th, lid；10th, pressure sensor；11st, relief valve connection；12nd, observation window；13rd, pressure
Table；14th, relief valve interface.
Embodiment
With reference to specific embodiment, the present invention is described in detail.Following examples will be helpful to the technology of this area
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill to this area
For personnel, without departing from the inventive concept of the premise, various modifications and improvements can be made.These belong to the present invention
Protection domain.
Embodiment 1
The present embodiment is related to a kind of mogullizer, as shown in figure 1, it includes tank body 4, lid 9 and bin 5, lid 9
The oral area of tank body 4 is covered on, bin 5 is arranged in tank body 4, and the side of tank body 4 is provided with vacuum interface 2, the and of compressed air interface 3
Impregnant interface 6, the bottom of tank body 4 are provided with relief valve interface 14, and the inner side of impregnant interface 6 is connected with impregnant flexible pipe 7, leaching
One end of penetration enhancer flexible pipe 7 is arranged at the top of bin 5.
Lid 9 realizes tight closure by locking cylinder 8 and tank body 4.
The top of lid 9 is provided with pressure sensor 10, relief valve connection 11, pressure gauge 13 and observation window 12.
The upper outside of tank body 4 is provided with the can opening truss 1 for being used for switching lid.
Embodiment 2
The present embodiment is related to a kind of method that mogullizer using embodiment 1 is infiltrated, and it includes following step
Suddenly：
First, using laser sintered 3D printing technological forming polystrene phantom, using dedicated hair drier by model table flour
Dirt is cleaned out；
2nd, according to needed for calculating tank volume and polystrene phantom size impregnant dosage, by epoxy resin and amine
Class curing agent and reactive diluent are according to 1：0.5：0.3 mixing, then stirs on reinforcement electric mixer, is modulated into
Enough infiltration post-treatment agents；
3rd, check whether each control valve of Impregnation apparatus and bleed pressure are normal, and whether each interface is unobstructed, then will remove table
The polystrene phantom of face dust is placed on bin, covers pressure tank cover, starts locking cylinder locking cover；
4th, start vacuum system, vacuumize, pressure inside the tank is observed by pressure gauge, make in tank air pressure to absolute pressure
40KPa, then keep 5min；
5th, impregnant interface is opened, in impregnant metaideophone to infiltration jar, will treat to close impregnant after impregnant metaideophone
Interface, continue to vacuumize, pressure inside the tank is kept 15min under 40KPa.During infiltration, impregnant temperature is maintained at 20 DEG C -50
DEG C, it water-bath mode can be used to preheat when temperature is relatively low.Liquid level must exceed more than model surface 20mm when impregnant infiltrates；
6th, vacuum system interface is closed, stops vacuum system, opens relief valve, until gauge hand is zeroed.Then close
Relief valve is closed, opens compressed air interface, to being forced into 300KPa in tank, keeps 30min；
7th, compressed air interface is closed, stops compressed air system, opens relief valve, after pressure gauge index zero, is beaten
Can opening lid, take out polystrene phantom；
8th, the model surface infiltration liquid drip-dry that will have been infiltrated, is then placed in vacuum drying chamber and dries, model is entered afterwards
The final process such as row coloring.
In the description of the invention, it is to be understood that term " on ", " under ", "front", "rear", "left", "right", " perpendicular
Directly ", the orientation of the instruction such as " level ", " top ", " bottom ", " interior ", " outer " or position relationship are based on orientation shown in the drawings or position
Relation is put, it is of the invention necessary with simplified description, rather than the device or element of instruction or hint meaning to be for only for ease of description
With specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
The specific embodiment of the present invention is described above.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, those skilled in the art can make various deformations or amendments within the scope of the claims, this not shadow
Ring the substantive content of the present invention.
Claims (7)
- A kind of 1. Sintering Model resin impregnated method, it is characterised in that comprise the following steps：Sintering resin mould and impregnant are prepared respectively；Under the absolute pressure no more than 40KPa, sintering resin mould is submerged in impregnant, and be higher by the liquid level of impregnant Sinter the surface at least 20mm of resin mould；Under the absolute pressure not less than 150KPa, impregnant is set to infiltrate sintering resin mould；After infiltration terminates, baking and curing and eventually processing are carried out.
- 2. Sintering Model resin impregnated method as claimed in claim 1, it is characterised in that the preparation of the sintering resin mould Method is the method using laser sintered 3D printing.
- 3. Sintering Model resin impregnated method as claimed in claim 1, it is characterised in that the preparation method of the impregnant For：Epoxy resin, amine curing agent and reactive diluent are mixed, after stirring, obtain the impregnant.
- 4. a kind of mogullizer, it is characterised in that including tank body, lid and bin, the cover cap is located at the mouth of tank body Portion, the bin are arranged in tank body, and the side of the tank body is provided with vacuum interface, compressed air interface and impregnant interface, The bottom of tank body is provided with relief valve interface, and impregnant flexible pipe, the impregnant flexible pipe are connected with the inside of the impregnant interface One end be arranged at the top of bin.
- 5. mogullizer as claimed in claim 4, it is characterised in that the lid is close with tank body by locking cylinder Closure.
- 6. mogullizer as claimed in claim 4, it is characterised in that the top of the lid be provided with pressure sensor, Relief valve connection, pressure gauge and observation window.
- 7. mogullizer as claimed in claim 4, it is characterised in that the upper outside of the tank body, which is provided with, to be used to switch The can opening truss of lid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710868977.9A CN107650375A (en) | 2017-09-22 | 2017-09-22 | Sintering Model resin impregnated method and mogullizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710868977.9A CN107650375A (en) | 2017-09-22 | 2017-09-22 | Sintering Model resin impregnated method and mogullizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107650375A true CN107650375A (en) | 2018-02-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710868977.9A Pending CN107650375A (en) | 2017-09-22 | 2017-09-22 | Sintering Model resin impregnated method and mogullizer |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109676950A (en) * | 2018-12-27 | 2019-04-26 | 南京菲锐迪新材料科技有限公司 | A kind of novel resin-based composite material |
| CN110856987A (en) * | 2018-08-22 | 2020-03-03 | 东北林业大学 | Pressure conversion is quick and convenient SLS wood-plastic composite material aftertreatment device |
| WO2022229081A1 (en) | 2021-04-26 | 2022-11-03 | Covestro Deutschland Ag | Method for producing an at least partially coated object |
| EP4101872A1 (en) | 2021-06-07 | 2022-12-14 | Covestro Deutschland AG | Method for producing an at least partially coated object |
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| CN205183770U (en) * | 2015-12-16 | 2016-04-27 | 因普雷浸渗科技（苏州）有限公司 | Jar infiltrates |
| CN105665246A (en) * | 2014-11-19 | 2016-06-15 | 重庆尚科机械制造有限公司 | Impregnation process |
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2017
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| CN1752238A (en) * | 2005-09-27 | 2006-03-29 | 华中科技大学 | Method for fast mfg. metal/high-molecular composite material parts |
| CN1850493A (en) * | 2006-04-28 | 2006-10-25 | 华中科技大学 | Method for rapid manufacturing plastic functional piece |
| CN105665246A (en) * | 2014-11-19 | 2016-06-15 | 重庆尚科机械制造有限公司 | Impregnation process |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110856987A (en) * | 2018-08-22 | 2020-03-03 | 东北林业大学 | Pressure conversion is quick and convenient SLS wood-plastic composite material aftertreatment device |
| CN109676950A (en) * | 2018-12-27 | 2019-04-26 | 南京菲锐迪新材料科技有限公司 | A kind of novel resin-based composite material |
| CN109676950B (en) * | 2018-12-27 | 2021-03-30 | 南京腾逸新材料科技有限公司 | Resin-based composite material |
| WO2022229081A1 (en) | 2021-04-26 | 2022-11-03 | Covestro Deutschland Ag | Method for producing an at least partially coated object |
| EP4101872A1 (en) | 2021-06-07 | 2022-12-14 | Covestro Deutschland AG | Method for producing an at least partially coated object |
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Application publication date: 20180202 |
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