CN104325078A - Dewaxing equipment for removing wax mould in precision-investment casting - Google Patents
Dewaxing equipment for removing wax mould in precision-investment casting Download PDFInfo
- Publication number
- CN104325078A CN104325078A CN201410572931.9A CN201410572931A CN104325078A CN 104325078 A CN104325078 A CN 104325078A CN 201410572931 A CN201410572931 A CN 201410572931A CN 104325078 A CN104325078 A CN 104325078A
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- China
- Prior art keywords
- guide rail
- rail car
- contact
- dewaxing
- heating
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- 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
Abstract
The invention belongs to the field of precision-investment casting, and particularly relates to dewaxing equipment for removing a wax mould in precision-investment casting. The dewaxing equipment is used for removing the wax mould using polystyrene as a main raw material in the precision-investment casting. The dewaxing equipment comprises a guide rail vehicle, a guide rail, a first resistance wire, a second resistance wire, a heating contact device, a cable, a gas inlet, a dewaxing vehicle, an oxygen bottle, an exhaust fan, a dust removing device, a dust removing and exhausting hole, a chamber body and a chamber door. According to the dewaxing equipment, the problems of difficulty in dewaxing of the wax mould using the polystyrene as the main raw material and environment pollution in the precision-investment casting are overcome, and the wax mould using the polystyrene as the main raw material can be removed in the precision-investment casting, thus the problem that a shell is broken due to inconsistency in expansion of different waxes in a dewaxing process is solved, and the environment pollution is reduced. The scheme is capable of ensuring the quality of a precision-investment casting shell, thereby improving the percent of pass of a casting.
Description
Technical field
The invention belongs to precision-investment casting field, being specifically related in a kind of precision-investment casting for removing the dewaxing device of wax-pattern.
Background technology
The employing rapid shaping that the wax-pattern of current precision-investment casting industry is more is produced, and more than 80% is Polystyrene powder in the raw material that rapid shaping technique adopts.Its fusing point is about 115 DEG C, its mobile performance is very poor, Direct Resolution generally can only be leaned on to remove, its decomposition temperature reaches 380 DEG C, and the running gate system part of foundry goods adopt in temperature waxedly to make, the fusing point of middle temperature wax only has 57 DEG C, and two kinds of different wax material coefficients of expansion in dewaxing process are inconsistent, often damage shell due to expansion.In addition, if wax material decomposes and insufficiently can produce a large amount of carbon ash, serious environment pollution in decomposable process.
Summary of the invention
(1) technical problem that will solve
The technical problem to be solved in the present invention is: how to provide a kind of dewaxing device, requires it can remove in precision-investment casting with polystyrene to be the wax-pattern of main raw material(s).
(2) technical scheme
For solving the problems of the technologies described above, the invention provides in a kind of precision-investment casting for removing the dewaxing device of wax-pattern, it is the wax-pattern of main raw material(s) that this equipment is used for removing in precision-investment casting with polystyrene, and described dewaxing device comprises: guide rail car 1, guide rail 2, first resistance wire 3a, the second resistance wire 3b, heating contact making device 4, cable 5, air inlet 6, dewaxing car 7, oxygen cylinder 9, ventilating fan 10, dust arrester 11, dedusting exhaust outlet 12, room body 13, room door 14;
Described dewaxing device is divided into: heating flame room and dust pelletizing system; Wherein, heating flame room comprises: guide rail car 1, guide rail 2, first resistance wire 3a, the second resistance wire 3b, the heating contact making device 4 be arranged on guide rail car 1, cable 5, air inlet 6, dewaxing car 7, oxygen cylinder 9, ventilating fan 10, room body 13, room door 14; Dust pelletizing system comprises: dust arrester 11 and dedusting exhaust outlet 12;
Described room body 13 defines the peripheral structure of this heating flame room, and it possesses certain thickness and heat insulation effect, and its construction inner is provided with the first resistance wire 3a, in energising situation, realize heating; Described room body 13 is provided with the room door 14 passed in and out for guide rail car 1, described room body 13 internal face is provided with the energising contact being connected external power source by cable 5, guide rail 2 direction bottom described energising contact position and heating flame chamber inner space matches, after guide rail car 1 enters room body 13, the energising contact of the contact and room body 13 of guide rail car 1 heating contact making device 4 contacts;
Described guide rail car 1 is arranged on the guide rail 2 bottom heating flame chamber inner space, and the central part of guide rail car 1 arranges described air inlet 6, and guide rail car 1 inside arranges described second resistance wire 3b, in energising situation, realize heating;
Heating contact making device 4 is provided with in described guide rail car 1 front end, when guide rail car 1 moves on guide rail 2, when guide rail car 1 pushes room body 13, after the contact of contact making device 4 and the energising contact of room body 13 are heated in front end, the energising contact of described first resistance wire 3a, room body 13, the contact of guide rail car 1 front end heating contact making device 4, the second resistance wire 3b connect with external power source, start electrified regulation, when guide rail car 1 is outwards mobile, the heating contact of contact making device 4, front end and the energising contact of room body 13 disconnect, auto-breaking;
Described dewaxing car 7 is arranged at above guide rail car 1;
The escape pipe of described oxygen cylinder 9 enters heating flame chamber interior through room body 13;
Body 13 top, described room is provided with exhaust outlet of combustion chamber, and exhaust outlet of combustion chamber connects dust arrester 11 by exhaust passage, and the import department of exhaust outlet of combustion chamber arranges described ventilating fan 10;
Described dust arrester 11 arranges described dedusting exhaust outlet 12.
(3) beneficial effect
Technical solution of the present invention provides a kind of dewaxing device, which overcome in precision-investment casting take polystyrene as the wax mould dewaxing difficulty of main raw material(s) and the problem of environmental pollution, can remove in precision-investment casting with polystyrene is the wax-pattern of main raw material(s), thus the inconsistent problem causing shell to break of the expansion solving different wax material in dewaxing process, decrease environmental pollution.The program can ensure the quality of fired mold precision casting type shell preferably, thus improves the qualification rate of foundry goods.
Accompanying drawing explanation
Fig. 1 and Fig. 2 is the structural representation of technical solution of the present invention.
Wherein, 1: guide rail car; 2: guide rail; 3: resistance wire; 4: heating contact making device;
5: cable; 6: air inlet; 7: dewaxing car; 8: formwork; 9: oxygen cylinder;
10: ventilating fan; 11: dust arrester; 12: exhaust outlet; 13: body of heater.
Detailed description of the invention
For making object of the present invention, content and advantage clearly, below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.
For solving prior art problem, the invention provides in a kind of precision-investment casting for removing the dewaxing device of wax-pattern, it is the wax-pattern of main raw material(s) that this equipment is used for removing in precision-investment casting with polystyrene, as shown in Figures 1 and 2, described dewaxing device comprises: guide rail car 1, guide rail 2, first resistance wire 3a, the second resistance wire 3b, heating contact making device 4, cable 5, air inlet 6, dewaxing car 7, formwork 8, oxygen cylinder 9, ventilating fan 10, dust arrester 11, dedusting exhaust outlet 12, room body 13, room door 14;
This equipment by high temperature, the casting shell making air enter body of heater and wax-pattern to carry out combustion reaction and obtain needed for precision-investment casting; Described dewaxing device is divided into: heating flame room and dust pelletizing system; Wherein, heating flame room comprises: guide rail car 1, guide rail 2, first resistance wire 3a, the second resistance wire 3b, the heating contact making device 4 be arranged on guide rail car 1, cable 5, air inlet 6, dewaxing car 7, oxygen cylinder 9, ventilating fan 10, room body 13, room door 14; Dust pelletizing system comprises: dust arrester 11 and dedusting exhaust outlet 12;
Described room body 13 defines the peripheral structure of this heating flame room, and it possesses certain thickness and heat insulation effect, and its construction inner is provided with the first resistance wire 3a, in energising situation, realize heating; Described room body 13 is provided with the room door 14 passed in and out for guide rail car 1, described room body 13 internal face is provided with the energising contact (not shown) being connected external power source by cable 5, guide rail 2 direction bottom described energising contact position and heating flame chamber inner space matches, after guide rail car 1 enters room body 13, the energising contact of the contact and room body 13 of guide rail car 1 heating contact making device 4 contacts;
Described guide rail car 1 is arranged on the guide rail 2 bottom heating flame chamber inner space, and the central part of guide rail car 1 arranges described air inlet 6, and guide rail car 1 inside arranges described second resistance wire 3b, in energising situation, realize heating;
Heating contact making device 4 is provided with in described guide rail car 1 front end, when guide rail car 1 moves on guide rail 2, when guide rail car 1 pushes room body 13, after the contact of contact making device 4 and the energising contact of room body 13 are heated in front end, the energising contact of described first resistance wire 3a, room body 13, the contact of guide rail car 1 front end heating contact making device 4, the second resistance wire 3b connect with external power source, start electrified regulation, when guide rail car 1 is outwards mobile, the heating contact of contact making device 4, front end and the energising contact of room body 13 disconnect, auto-breaking;
Described dewaxing car 7 is arranged at above guide rail car 1;
The escape pipe of described oxygen cylinder 9 enters heating flame chamber interior through room body 13;
Body 13 top, described room is provided with exhaust outlet of combustion chamber, and exhaust outlet of combustion chamber connects dust arrester 11 by exhaust passage, and the import department of exhaust outlet of combustion chamber arranges described ventilating fan 10;
Described dust arrester 11 arranges described dedusting exhaust outlet 12.
In heating flame chamber interior, described dewaxing car 7 is arranged at above guide rail car 1, formwork is placed in dewaxing car and dewaxes, and when top wax material is when burning, air can enter rapidly resistance furnace bottom guide rail car, and wax material is burnt; In combustion, the oxygen cylinder by outside provides oxygen in body of heater, makes the further Thorough combustion of wax material, about playing environmental protection; Have a ventilating fan above body of heater, the waste gas after burning is blown in dust arrester by ventilating fan, and dirt pocket adopts state-set standard dedusting, not within the present invention's protection.The temperature control of body of heater is no longer in scope.
The subassembly inventory of this equipment is as shown in table 1.
Table 1: equipment subassembly inventory
Its operation principle is: during dewaxing, and first arranging room body 13 temperature is 450 DEG C, is pushed by guide rail car 1 in room body 13, and after heating contact making device 4 contacts, room body 13 starts heating, and it is stand-by formwork 8 to be put into dewaxing car 7; When being heated to 450 DEG C, opening fire door 14, being hauled out by guide rail car 1 along guide rail 2, contact making device 4 disconnects, device powers down; Be placed on by dewaxing car 7 above guide rail car 1, pushed by guide rail car 1 in room body 13, heating contact making device 4 contacts, and equipment energising starts heating; Air enters room body 13 with air inlet 6, and the wax-pattern in formwork 8 at high temperature burns, and opens ventilating fan 10, and waste gas enters dust arrester 11 by pipeline, and the waste gas after double purification enters air by exhaust outlet 12; In wax-pattern combustion process, observe the waste gas of exhaust outlet 12, once find that waste gas burning is insufficient, have black waste gas to discharge, open the switch of oxygen cylinder 9, make oxygen enter room body 13, make wax-pattern Thorough combustion, play environmental-protection function.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the technology of the present invention principle; can also make some improvement and distortion, these improve and distortion also should be considered as protection scope of the present invention.
Claims (1)
1. in a precision-investment casting for removing the dewaxing device of wax-pattern, it is characterized in that, it is the wax-pattern of main raw material(s) that this equipment is used for removing in precision-investment casting with polystyrene, described dewaxing device comprises: guide rail car (1), guide rail (2), first resistance wire (3a), second resistance wire (3b), heating contact making device (4), cable (5), air inlet (6), dewaxing car (7), oxygen cylinder (9), ventilating fan (10), dust arrester (11), dedusting exhaust outlet (12), room body (13), room door (14),
Described dewaxing device is divided into: heating flame room and dust pelletizing system; Wherein, heating flame room comprises: guide rail car (1), guide rail (2), the first resistance wire (3a), the second resistance wire (3b), the heating contact making device (4) be arranged on guide rail car (1), cable (5), air inlet (6), dewaxing car (7), oxygen cylinder (9), ventilating fan (10), room body (13), room door (14); Dust pelletizing system comprises: dust arrester (11) and dedusting exhaust outlet (12);
Described room body (13) defines the peripheral structure of this heating flame room, and it possesses certain thickness and heat insulation effect, and its construction inner is provided with the first resistance wire (3a), in energising situation, realize heating; Described room body (13) is provided with the room door (14) passed in and out for guide rail car (1), described room body (13) internal face is provided with the energising contact being connected external power source by cable (5), guide rail (2) direction bottom described energising contact position and heating flame chamber inner space matches, after guide rail car (1) enters room body (13), the contact of guide rail car (1) heating contact making device (4) contacts with the energising contact of room body (13);
Described guide rail car (1) is arranged on the guide rail (2) bottom heating flame chamber inner space, the central part of guide rail car (1) arranges described air inlet (6), guide rail car (1) inside arranges described second resistance wire (3b), in energising situation, realize heating;
Heating contact making device (4) is provided with in described guide rail car (1) front end, guide rail car (1) is when guide rail (2) is above mobile, when guide rail car (1) pushes room body (13), after the contact of contact making device (4) and the energising contact of room body (13) are heated in front end, described first resistance wire (3a), the energising contact of room body (13), the contact of guide rail car (1) front end heating contact making device (4), second resistance wire (3b) is connected with external power source, start electrified regulation, when guide rail car (1) outwards moves, the contact of front end heating contact making device (4) and the energising contact of room body (13) disconnect, auto-breaking,
Described dewaxing car (7) is arranged at guide rail car (1) top;
The escape pipe of described oxygen cylinder (9) enters heating flame chamber interior through room body (13);
Body (13) top, described room is provided with exhaust outlet of combustion chamber, and exhaust outlet of combustion chamber connects dust arrester (11) by exhaust passage, and the import department of exhaust outlet of combustion chamber arranges described ventilating fan (10);
Described dust arrester (11) is arranged described dedusting exhaust outlet (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410572931.9A CN104325078B (en) | 2014-10-23 | 2014-10-23 | It is used for removing the dewaxing device of wax-pattern in precision-investment casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410572931.9A CN104325078B (en) | 2014-10-23 | 2014-10-23 | It is used for removing the dewaxing device of wax-pattern in precision-investment casting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104325078A true CN104325078A (en) | 2015-02-04 |
| CN104325078B CN104325078B (en) | 2017-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410572931.9A Active CN104325078B (en) | 2014-10-23 | 2014-10-23 | It is used for removing the dewaxing device of wax-pattern in precision-investment casting |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105903898A (en) * | 2016-06-12 | 2016-08-31 | 蔡政达 | Shell mold sintering method and device |
| CN107214299A (en) * | 2017-05-25 | 2017-09-29 | 西北工业大学 | A kind of process for dewaxing of investment casting shell |
| WO2018126502A1 (en) * | 2017-01-03 | 2018-07-12 | 蔡欲期 | Shell mold sintering device and method |
| CN110385400A (en) * | 2019-08-13 | 2019-10-29 | 西安西工大超晶科技发展有限责任公司 | A kind of process for dewaxing of 3D printing PS powder wax-pattern |
| CN113426952A (en) * | 2021-06-08 | 2021-09-24 | 江苏神铸智能科技有限公司 | Integrated dewaxing device for steam washing of precision castings |
| CN113976827A (en) * | 2021-10-29 | 2022-01-28 | 河南平原光电有限公司 | Dry-type dewaxing device and method for gypsum mold investment casting |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3357602A4 (en) * | 2016-06-12 | 2019-04-10 | Yuchi Tsai | Shell mold sintering method and apparatus |
| CN105903898B (en) * | 2016-06-12 | 2017-12-05 | 蔡政达 | Shell mould sintering method and device |
| WO2017215127A1 (en) * | 2016-06-12 | 2017-12-21 | 蔡欲期 | Shell mold sintering method and apparatus |
| KR20180074757A (en) * | 2016-06-12 | 2018-07-03 | 유치 차이 | Shell mold sintering method and apparatus |
| CN105903898A (en) * | 2016-06-12 | 2016-08-31 | 蔡政达 | Shell mold sintering method and device |
| KR102069459B1 (en) * | 2016-06-12 | 2020-01-22 | 유치 차이 | Shell mold sintering method and apparatus |
| WO2018126502A1 (en) * | 2017-01-03 | 2018-07-12 | 蔡欲期 | Shell mold sintering device and method |
| CN107214299A (en) * | 2017-05-25 | 2017-09-29 | 西北工业大学 | A kind of process for dewaxing of investment casting shell |
| CN107214299B (en) * | 2017-05-25 | 2019-05-10 | 西北工业大学 | A kind of process for dewaxing of investment casting shell |
| CN110385400A (en) * | 2019-08-13 | 2019-10-29 | 西安西工大超晶科技发展有限责任公司 | A kind of process for dewaxing of 3D printing PS powder wax-pattern |
| CN113426952A (en) * | 2021-06-08 | 2021-09-24 | 江苏神铸智能科技有限公司 | Integrated dewaxing device for steam washing of precision castings |
| CN113976827A (en) * | 2021-10-29 | 2022-01-28 | 河南平原光电有限公司 | Dry-type dewaxing device and method for gypsum mold investment casting |
| CN113976827B (en) * | 2021-10-29 | 2023-09-22 | 河南平原光电有限公司 | Gypsum type investment casting dry dewaxing device and dewaxing method |
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