CN110385400A - A kind of process for dewaxing of 3D printing PS powder wax-pattern - Google Patents
A kind of process for dewaxing of 3D printing PS powder wax-pattern Download PDFInfo
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- CN110385400A CN110385400A CN201910745901.6A CN201910745901A CN110385400A CN 110385400 A CN110385400 A CN 110385400A CN 201910745901 A CN201910745901 A CN 201910745901A CN 110385400 A CN110385400 A CN 110385400A
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- dewaxing
- casting
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- pattern
- wax
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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
- B22C9/043—Removing the consumable pattern
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D18/00—Pressure casting; Vacuum casting
- B22D18/04—Low pressure casting, i.e. making use of pressures up to a few bars to fill the mould
-
- 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
- B33Y10/00—Processes of additive manufacturing
Abstract
A kind of process for dewaxing of 3D printing PS powder wax-pattern draws Casting Three-dimensional according to drawing requirement first and designs wax module group type technique, then 3D printing PS powder wax-pattern；And the running gate system that PS powder wax-pattern is prepared with wax material is combined；Prepare silica solution formwork；Running gate system after being combined using silica solution formwork using steam dewaxing axe is dewaxed；The dewaxing and formwork roasting for carrying out PS powder wax-pattern using resistance furnace again, finally use anti-gravity low-pressure casting.Casting wax mould is made of 3D printing PS powder, and casting moulding system takes the waxed work of traditional medium temperature, this kind of process design method not only increases the production efficiency of casting, and significantly reduces the production cost of casting.The present invention uses the dewaxing technique of 3D printing PS powder wax-pattern, dewaxing and formwork roasting heating while carrying out, and 3D printing PS powder wax mould dewaxing is complete, and the consistency of formwork quality is good.
Description
Technical field
The present invention relates to a kind of process for dewaxing of 3D printing PS powder wax-pattern, this method is suitable for the PS powder wax of 3D printing casting
Mould+medium temperature wax running channel prepares the process of formwork using silicon sol casing mode and dewaxing axe dewaxing.
Background technique
Model casting is also known as lost-wax casting, is had using the casting of this technique production accurate, complicated, last close to part
The characteristics of shape, can not process or seldom process directly use, model casting is a kind of advanced technologies of near-net-shape.Due to
Silica solution is easy to use, is easily made into the high-quality coating of high powder liquor ratio, and the stability of coating is good, and not needing when shell manufacture
Hardening is learned, process is simple, and prepared shell high-temperature behavior is good, there is certain hot strength of investment shell and high temperature stability,
Therefore it is directed to the precision casting of high-performance, high metallurgical quality requirement, silica solution is mostly used to prepare the fusible pattern of formwork greatly both at home and abroad
Casting method.Wax pattern used in silica solution model casting mostly uses greatly the wax-pattern of metal die die mould acquisition part at this stage,
And the production of metal die there are the period it is long, expensive the features such as, while metal type dies modification is difficult, it is impossible to frequently repair
Just, non-type, development type product are especially faced, traditional metal type dies preparation wax pattern does not have its production capacity.
A kind of 3D printing technique accumulation molding technology fast-developing since being the 1980s is based on mathematical model
Data, by increase material, using layer-by-layer manufacture, direct printing shaping and corresponding mathematical analysis model it is completely the same three
Tie up physical entity molds, methods of making.3D printing technique and traditional model casting are to beat using 3D mainly in combination with point at this stage
Print technology quickly prepares wax-pattern, then prepares formwork using silica solution, have it is inexpensive, with short production cycle, to casting material and
The good feature of structural behaviour adaptability.This technique does not need to prepare mold, the lead time can contract compared with conventional casting techniques
Short by 60% or so, compared with metal material powder 3D printing increases material, cost can reduce by 65%~70% again, be suitable for product
It is quick exploitation and small lot customized production, have apparent technology and economic advantages.
At the same time, 3D printing wax-pattern still has certain cost disadvantage relative to single-piece conventional cast paraffin, from
Castings production cost savings angle is set out, and general casting wax mould is made by the way of 3D printing PS powder, for casting quality shadow
It rings lesser running gate system and continues to use traditional wax material preparation, then carry out group according to the design drawing of casting moulding system
It closes, it is final that silica solution formwork is prepared using traditional full form casting process and completes casting production.3D printing PS powder wax-pattern and tradition
There are biggish differences in terms of the coefficient of expansion for wax, and a certain dewaxing mode is unilaterally taken to will lead to being split up for formwork, after
The continuous repairing for needing to carry out casting formwork large area, this not only adds the workloads of shell process personnel processed, and can make
At formwork be split up place it is blocked up, virtually change the setting temperature field of casting, be unfavorable for the smooth implementation of pouring technology, influence to cast
The stability of part quality.Secondly the shell of 3D printing powder wax-pattern preparation mostly uses greatly the mode of outdoor high fire roasting to carry out, this meeting
A degree of pollution is caused to environment.The appearance of the above variety of problems seriously limits the low cost quickly exploitation of casting, because
There is an urgent need to find out a kind of dewaxing technique of novel 3D printing PS powder wax-pattern at this stage for this.
Summary of the invention
The purpose of the present invention is to provide a kind of process for dewaxing of 3D printing PS powder wax-pattern.
To achieve the above object, the technical solution adopted by the present invention are as follows:
A kind of process for dewaxing of 3D printing PS powder wax-pattern draws Casting Three-dimensional according to drawing requirement first and designs wax-pattern
Type technique is organized, then 3D printing PS powder wax-pattern；And the running gate system that PS powder wax-pattern is prepared with wax material is combined；Prepare silicon
Colloidal sol formwork；Running gate system after being combined using silica solution formwork using steam dewaxing axe is dewaxed；Again using resistance furnace into
The dewaxing of row PS powder wax-pattern and formwork roasting, finally use anti-gravity low-pressure casting.
A further improvement of the present invention lies in that, the specific steps are as follows:
Step 1: drawing Casting Three-dimensional, design running gate system；
Step 2: production 3D printing casting PS powder wax-pattern；
Step 3: running gate system uses the waxed work of medium temperature, according to Design of Runner System scheme in step 1, completes casting 3D and beats
Print the running gate system combination of PS powder wax-pattern and the waxed work of medium temperature；
Step 4: carrying out silica solution formwork and be coated with；
Step 5: dewaxing axe being taken to complete the dewaxing of wax material；
Step 6: the dewaxing of 3D printing PS powder wax-pattern is carried out using resistance furnace；
Step 7: using the casting formwork in anti-gravity low-pressure casting step 6.
A further improvement of the present invention lies in that in step 3, the casting system of casting 3D printing PS powder wax-pattern and the waxed work of medium temperature
De-waxing hole is set to casting sprue and running channel lower end after system combination.
A further improvement of the present invention lies in that dewaxing technique is as follows in step 5): the outer gallbladder temperature of dewaxing axe is 165~185
DEG C, water vapour pressure starts inner-outer tube intercommunication when being 0.7~0.9MPa, dewaxes the time after inner-outer tube intercommunication are as follows: 25min, dewaxing
Formwork need to be placed 12 hours after the completion.
A further improvement of the present invention lies in that circulation port increases smoke treatment device in resistance furnace in step 6.
A further improvement of the present invention lies in that dewaxing technique is as follows in step 6): each formwork, which enters stokehold, need to open flue dust
Processor, at 500~700 DEG C, formwork enters furnace, and resistance furnace is warming up to 850 DEG C, completes the dewaxing of 3D printing PS powder wax-pattern, and
850 DEG C keep the temperature 2.5 hours, complete formwork roasting.
Compared with prior art, the invention has the benefit that
1) casting wax mould is made of 3D printing PS powder, and casting moulding system takes the waxed work of traditional medium temperature, this kind of technique
Design method not only increases the production efficiency of casting, and significantly reduces the production cost of casting.
2) present invention uses the dewaxing technique of 3D printing PS powder wax-pattern, dewaxing and formwork roasting heating while carrying out, 3D
Printing PS powder wax mould dewaxing is complete, and the consistency of formwork quality is good.
Further, position is concentrated in cast gate and running channel, de-waxing hole is set, the present invention completes casting using steam dewaxing axe
The novel dewaxing technique of system conventional wax material is conducive to existing traditional investment casting device well and completes running gate system wax
The dewaxing of material ensure that the stability of formwork quality, improve the production efficiency of casting.
Further, existing resistance furnace apparatus is transformed, increases smoke removing device, existing equipment can be made full use of, completes 3D
Print the dewaxing and roasting of wax-pattern.
Specific embodiment
Now in conjunction with embodiment, present invention is further described in detail:
In order to promote 3D printing PS powder wax-pattern preferably to serve traditional model casting, in order to shorten the development and production of casting
Period saves castings production cost on the basis of improving casting mould chitin amount as far as possible.Collateral security 3D printing PS powder wax-pattern system
Standby formwork quality stability and the angle for saving production cost are set out, and it is de- that the present invention provides a kind of novel 3D printing PS powder wax-pattern
Wax method.The mode that novel 3D printing PS powder casting wax mould tradition wax running gate system combines is developed, is guaranteeing casting
Quickly on the basis of exploitation, production cost has been saved；Design novel traditional wax material and 3D printing PS powder wax-pattern stage by stage
The novel process of dewaxing guarantees the stability of casting mould chitin amount.The invention proposes casting 3D printing PS powder wax-pattern it is low at
This fast preparation method solves the problems, such as that 3D printing PS powder wax mould dewaxing leads to formwork unstable quality, allows 3D printing PS powder
Wax-pattern really serves conventional cast, reduces castings production cost on the basis of improving the casting development cycle, and cast
Part formwork quality stability is also further increased.
Based on certain steering engine shell product, Casting Three-dimensional is drawn according to drawing requirement first and designs wax module group type work
Skill；3D printing PS powder wax-pattern；It is combined with the running gate system of traditional wax material preparation；The preparation of silica solution formwork；Using steam
The axe that dewaxes completes running gate system dewaxing；The dewaxing and formwork roasting of 3D printing casting PS powder wax-pattern are completed using resistance furnace；Using
Anti-gravity low-pressure casting；Ray and fluorescence detection metallurgical quality of cast；Complete casting dimension detection.
Realize that specific step is as follows for technical solution of the present invention:
Step 1: drawing Casting Three-dimensional, design running gate system；
Step 2: production 3D printing casting PS powder wax-pattern；
Step 3: running gate system completes casting according to Design of Runner System scheme in step 1 using the waxed work of traditional medium temperature
The running gate system combination of 3D printing PS powder wax-pattern and the waxed work of traditional medium temperature, de-waxing hole need to be set under casting sprue and running channel
End；
Step 4: completing silica solution formwork and be coated with；
Step 5: take dewaxing axe to complete the dewaxing of traditional wax material, dewaxing technique is as follows: the outer gallbladder temperature of dewaxing axe is
165~185 DEG C, water vapour pressure starts inner-outer tube intercommunication when being 0.7~0.9MPa, dewaxes the time after inner-outer tube intercommunication are as follows:
25min, formwork need to be placed 12 hours after the completion of dewaxing；
Step 6: circulation port increases smoke treatment device in resistance furnace；
Step 7: the dewaxing of 3D printing PS powder wax-pattern is completed using resistance furnace, dewaxing technique is as follows: each formwork enters stokehold
Smoke treatment device need to be opened, at 500 DEG C, formwork enters 1, furnace, and resistance furnace is rapidly heated to 850 DEG C, completes 3D printing PS powder wax-pattern
Dewaxing, 850 DEG C keep the temperature 2.5 hours, complete formwork roasting；
Step 8: using the casting formwork in anti-gravity low-pressure casting step 7；
Step 9: 8 cast(ing) surface formwork of cleanup step, and dead head is cut off, polishing cast(ing) surface burr etc.；
Step 10: X-ray, fluorescence, dimension control are carried out to step 9 medium casting.
It is below specific embodiment.
Embodiment 1
By taking size φ 270 × 260mm casting as an example, castings material ZL205A, casting is in tubbiness, using 3D printing casting
Wax-pattern+tradition wax prepares running gate system, and specific step is as follows for implementation:
Step 1: drawing Casting Three-dimensional, design running gate system；
Step 2: production 3D printing casting PS powder wax-pattern；
Step 3: running gate system completes casting according to Design of Runner System scheme in step 1 using the waxed work of traditional medium temperature
The running gate system combination of 3D printing PS powder wax-pattern and the waxed work of traditional medium temperature, de-waxing hole need to be set under casting sprue and running channel
End；
Step 4: completing silica solution formwork and be coated with；
Step 5: take dewaxing axe to complete the dewaxing of traditional wax material, dewaxing technique is as follows: the outer gallbladder temperature of dewaxing axe is
175 DEG C, water vapour pressure starts inner-outer tube intercommunication when being 0.8MPa, dewaxes the time after inner-outer tube intercommunication are as follows: 25min has dewaxed
It need to be placed 12 hours at rear formwork；
Step 6: circulation port increases smoke treatment device in resistance furnace；
Step 7: the dewaxing of 3D printing PS powder wax-pattern is completed using resistance furnace, dewaxing technique is as follows: each formwork enters stokehold
Smoke treatment device need to be opened, at 500 DEG C, formwork enters 1, furnace, and resistance furnace is rapidly heated to 850 DEG C, completes 3D printing PS powder wax-pattern
Dewaxing, 850 DEG C keep the temperature 2.5 hours, complete formwork roasting；
Step 8: using the casting formwork in anti-gravity low-pressure casting step 7；
Step 9: 8 cast(ing) surface formwork of cleanup step, and dead head is cut off, polishing cast(ing) surface burr etc.；
Step 10: X-ray, fluorescence, dimension control are carried out to step 9 medium casting.
The dewaxing of casting 3D printing PS powder wax-pattern is carried out in this way, after the dewaxing roasting of casting formwork, to casting formwork
Appearance detection is carried out, formwork flawless generates, and the casting of casting passes through ray detection, and cast-internal is without dreg defect, casting table
Face shows that metallurgical quality of cast can achieve the requirement of I class of HB963 after fluorescence detection without cinder hole defect, and casting is examined by size
It tests, dimensional accuracy can achieve HB6103CT6 requirement.
Embodiment 2
With sizeFor casting, for whole wall thickness 10mm casting, material ZL104, casting
In peviform, radian is larger, and inner cavity is hollow, since casting is larger, after casting takes 3D printing wax-pattern mode to make, to dewaxing technique
It is required that more stringent, dewaxing specific implementation step is as follows:
Step 1: drawing Casting Three-dimensional, design running gate system；
Step 2: production 3D printing casting PS powder wax-pattern；
Step 3: running gate system completes casting according to Design of Runner System scheme in step 1 using the waxed work of traditional medium temperature
The running gate system combination of 3D printing PS powder wax-pattern and the waxed work of traditional medium temperature, de-waxing hole need to be set under casting sprue and running channel
End；
Step 4: completing silica solution formwork and be coated with；
Step 5: take dewaxing axe to complete the dewaxing of traditional wax material, dewaxing technique is as follows: the outer gallbladder temperature of dewaxing axe is
165 DEG C, water vapour pressure starts inner-outer tube intercommunication when being 0.7MPa, dewaxes the time after inner-outer tube intercommunication are as follows: 25min has dewaxed
It need to be placed 12 hours at rear formwork；
Step 6: circulation port increases smoke treatment device in resistance furnace；
Step 7: the dewaxing of 3D printing PS powder wax-pattern is completed using resistance furnace, dewaxing technique is as follows: each formwork enters stokehold
Smoke treatment device need to be opened, at 500 DEG C, formwork enters 1, furnace, and resistance furnace is rapidly heated to 850 DEG C, completes 3D printing PS powder wax-pattern
Dewaxing, 850 DEG C keep the temperature 2.5 hours, complete formwork roasting；
Step 8: using the casting formwork in anti-gravity low-pressure casting step 7；
Step 9: 8 cast(ing) surface formwork of cleanup step, and dead head is cut off, polishing cast(ing) surface burr etc.；
Step 10: X-ray, fluorescence, dimension control are carried out to step 9 medium casting.
The dewaxing of casting 3D printing PS powder wax-pattern is carried out in this way, after the dewaxing roasting of casting formwork, to casting formwork
Appearance detection is carried out, formwork flawless generates, and the casting of casting passes through ray detection, and cast-internal is without dreg defect, casting table
Face shows that metallurgical quality of cast can achieve the requirement of I class of HB963 after fluorescence detection without cinder hole defect, and casting is examined by size
It tests, dimensional accuracy can achieve HB6103CT6 requirement.
Embodiment 3
With sizeFor casting, material ZL205A, casting is in inverted " V " shape, casting
90% wall thickness of part is 15mm, and there are 5mm column, dewaxing technique specific implementation step is as follows for inner cavity:
Step 1: drawing Casting Three-dimensional, design running gate system；
Step 2: production 3D printing casting PS powder wax-pattern；
Step 3: running gate system completes casting according to Design of Runner System scheme in step 1 using the waxed work of traditional medium temperature
The running gate system combination of 3D printing PS powder wax-pattern and the waxed work of traditional medium temperature, de-waxing hole need to be set under casting sprue and running channel
End；
Step 4: completing silica solution formwork and be coated with；
Step 5: take dewaxing axe to complete the dewaxing of traditional wax material, dewaxing technique is as follows: the outer gallbladder temperature of dewaxing axe is
185 DEG C, water vapour pressure starts inner-outer tube intercommunication when being 0.9MPa, dewaxes the time after inner-outer tube intercommunication are as follows: 25min has dewaxed
It need to be placed 12 hours at rear formwork；
Step 6: circulation port increases smoke treatment device in resistance furnace；
Step 7: the dewaxing of 3D printing PS powder wax-pattern is completed using resistance furnace, dewaxing technique is as follows: each formwork enters stokehold
Smoke treatment device need to be opened, at 500 DEG C, formwork enters 1, furnace, and resistance furnace is rapidly heated to 850 DEG C, completes 3D printing PS powder wax-pattern
Dewaxing, 850 DEG C keep the temperature 2.5 hours, complete formwork roasting；
Step 8: using the casting formwork in anti-gravity low-pressure casting step 7；
Step 9: 8 cast(ing) surface formwork of cleanup step, and dead head is cut off, polishing cast(ing) surface burr etc.；
Step 10: X-ray, fluorescence, dimension control are carried out to step 9 medium casting.
The dewaxing of casting 3D printing PS powder wax-pattern is carried out in this way, after the dewaxing roasting of casting formwork, to casting formwork
Appearance detection is carried out, formwork flawless generates, and the casting of casting passes through ray detection, and cast-internal is without dreg defect, casting table
Face shows that metallurgical quality of cast can achieve the requirement of I like members of HB963 after fluorescence detection without cinder hole defect, and casting passes through size
It examines, dimensional accuracy can achieve HB6103CT6 requirement.
Embodiment 4
By taking certain aviation Middle casing as an example, having a size of φ 140mm, lower end is φ 260mm, high 120mm, dewaxing for upper end
Specific embodiment is as follows:
Step 1: drawing Casting Three-dimensional, design running gate system；
Step 2: production 3D printing casting PS powder wax-pattern；
Step 3: running gate system completes casting according to Design of Runner System scheme in step 1 using the waxed work of traditional medium temperature
The running gate system combination of 3D printing PS powder wax-pattern and the waxed work of traditional medium temperature, de-waxing hole need to be set under casting sprue and running channel
End；
Step 4: completing silica solution formwork and be coated with；
Step 5: take dewaxing axe to complete the dewaxing of traditional wax material, dewaxing technique is as follows: the outer gallbladder temperature of dewaxing axe is
175 DEG C, water vapour pressure starts inner-outer tube intercommunication when being 0.8MPa, dewaxes the time after inner-outer tube intercommunication are as follows: 25min has dewaxed
It need to be placed 12 hours at rear formwork；
Step 6: circulation port increases smoke treatment device in resistance furnace；
Step 7: the dewaxing of 3D printing PS powder wax-pattern is completed using resistance furnace, dewaxing technique is as follows: each formwork enters stokehold
Smoke treatment device need to be opened, at 500 DEG C, formwork enters 1, furnace, and resistance furnace is rapidly heated to 850 DEG C, completes 3D printing PS powder wax-pattern
Dewaxing, 850 DEG C keep the temperature 2.5 hours, complete formwork roasting；
Step 8: using the casting formwork in anti-gravity low-pressure casting step 7；
Step 9: 8 cast(ing) surface formwork of cleanup step, and dead head is cut off, polishing cast(ing) surface burr etc.；
Step 10: X-ray, fluorescence, dimension control are carried out to step 9 medium casting.
The dewaxing of casting 3D printing PS powder wax-pattern is carried out in this way, after the dewaxing roasting of casting formwork, to casting formwork
Appearance detection is carried out, formwork flawless generates, and the casting of casting passes through ray detection, and cast-internal is without dreg defect, casting table
Face shows that metallurgical quality of cast can achieve the requirement of I class of HB963 after fluorescence detection without cinder hole defect, and casting is examined by size
It tests, dimensional accuracy can achieve HB6103CT6 requirement.
Claims (6)
1. a kind of process for dewaxing of 3D printing PS powder wax-pattern, which is characterized in that draw Casting Three-dimensional simultaneously according to drawing requirement first
And design wax module group type technique, then 3D printing PS powder wax-pattern；And the running gate system phase for preparing PS powder wax-pattern with wax material
Combination；Prepare silica solution formwork；Running gate system after being combined using silica solution formwork using steam dewaxing axe is dewaxed；It adopts again
The dewaxing and formwork roasting that PS powder wax-pattern is carried out with resistance furnace, finally use anti-gravity low-pressure casting.
2. a kind of process for dewaxing of 3D printing PS powder wax-pattern according to claim 1, which is characterized in that specific steps are such as
Under:
Step 1: drawing Casting Three-dimensional, design running gate system；
Step 2: production 3D printing casting PS powder wax-pattern；
Step 3: running gate system uses the waxed work of medium temperature, according to Design of Runner System scheme in step 1, completes casting 3D printing PS
The combination of the running gate system of powder wax-pattern and the waxed work of medium temperature；
Step 4: carrying out silica solution formwork and be coated with；
Step 5: dewaxing axe being taken to complete the dewaxing of wax material；
Step 6: the dewaxing of 3D printing PS powder wax-pattern is carried out using resistance furnace；
Step 7: using the casting formwork in anti-gravity low-pressure casting step 6.
3. a kind of process for dewaxing of 3D printing PS powder wax-pattern according to claim 2, which is characterized in that in step 3, casting
De-waxing hole is set to casting sprue and running channel lower end after the combination of the running gate system of 3D printing PS powder wax-pattern and the waxed work of medium temperature.
4. a kind of process for dewaxing of 3D printing PS powder wax-pattern according to claim 2, which is characterized in that in step 5), take off
Ceroplastic is as follows: the outer gallbladder temperature of dewaxing axe is 165~185 DEG C, and it is mutual that water vapour pressure starts inner-outer tube when being 0.7~0.9MPa
It is logical, it dewaxes the time after inner-outer tube intercommunication are as follows: 25min, formwork need to be placed 12 hours after the completion of dewaxing.
5. a kind of process for dewaxing of 3D printing PS powder wax-pattern according to claim 2, which is characterized in that in step 6, resistance
Circulation port increases smoke treatment device in furnace.
6. a kind of process for dewaxing of 3D printing PS powder wax-pattern according to claim 2, which is characterized in that in step 6), take off
Ceroplastic is as follows: each formwork, which enters stokehold, need to open smoke treatment device, and at 500~700 DEG C, formwork enters furnace, and resistance furnace is warming up to
850 DEG C, the dewaxing of 3D printing PS powder wax-pattern is completed, and keep the temperature 2.5 hours at 850 DEG C, complete formwork roasting.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110842145A (en) * | 2019-12-27 | 2020-02-28 | 西安西工大超晶科技发展有限责任公司 | 3D printing wax pattern dust-free dewaxing method |
| CN111054901A (en) * | 2019-12-31 | 2020-04-24 | 西安西工大超晶科技发展有限责任公司 | Method for solving streamline defect at lower end of ZL210A alloy casting linear chilling block |
| CN111097894A (en) * | 2019-12-31 | 2020-05-05 | 西安西工大超晶科技发展有限责任公司 | Method for improving streamline defects of confluence area of ZL210A alloy casting |
| CN111974937A (en) * | 2020-06-24 | 2020-11-24 | 温州造梦科技有限公司 | Casting production process for realizing 3D printing of polystyrene material |
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| CN111974937A (en) * | 2020-06-24 | 2020-11-24 | 温州造梦科技有限公司 | Casting production process for realizing 3D printing of polystyrene material |
| CN111974937B (en) * | 2020-06-24 | 2023-12-12 | 温州造梦科技有限公司 | Casting production process for realizing 3D printing of polystyrene material |
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