CN104889324A - Steam dewaxing kettle and dewaxing method based on kettle - Google Patents
Steam dewaxing kettle and dewaxing method based on kettle Download PDFInfo
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- CN104889324A CN104889324A CN201510268526.2A CN201510268526A CN104889324A CN 104889324 A CN104889324 A CN 104889324A CN 201510268526 A CN201510268526 A CN 201510268526A CN 104889324 A CN104889324 A CN 104889324A
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Abstract
The invention discloses a steam dewaxing kettle and a dewaxing method. A steam interlayer is arranged between a shell and an inner container of a dewaxing kettle body, and a plurality of valves are arranged on the inner container; a fixing device for fixing the shell is arranged in an action cavity formed by the inner container, and an inclining device drives the dewaxing kettle body to incline; the dewaxing kettle body inclines to drive an investment casting shell to incline so as to enable a riser and a sprue of the investment casting shell to face the downward direction or inclined direction; and in the dewaxing process, high-pressure steam enters the steam interlayer firstly, and then enters the action cavity through the valves, after dewaxing is completed, the valves are opened in a step-by-step manner, and pressure is released slowly. The inner container is preheated through high-pressure steam in the steam interlayer, the condensation phenomenon is reduced, and the pressure build-up speed and the wax liquid recycling utilization rate are improved; the valves on the inner container enable the action cavity to rapidly build pressure, and micro cracks are also prevented from being formed on the shell; the dewaxing kettle inclines through the inclining device, the wax liquid flowing-out speed is improved, a working procedure of repairing dewaxing holes in the shell is removed, and the production efficiency is improved.
Description
Technical field
The present invention relates to dewaxing kettle, be specifically related to a kind of steam dewaxing still.
Background technology
Model casting basic craft course can be divided into lost wax casting, shell manufacture and roasting cast.Because shell plays a key effect to the casting quality cast out, therefore the manufacture of shell itself is very crucial.Common shell processing technology comprises: the oil removing of wax-pattern and degreasing, on wax-pattern, be coated with coating and stucco, shell dry and sclerosis, molten dewax mould and roasting shell.
Because the material melting point manufacturing wax-pattern is usually lower, the molten mistake for the wax-pattern of a small amount of, common shell can put into boiling water.For large-scale shell or large quantities of mass-produced occasion, special dewaxing kettle is usually needed to complete this technique.
The existing dewaxing kettle overwhelming majority is horizontal.Much larger than 500 millimeters when the diameter of dewaxing kettle is general, the height that conventional typical casting system is general is 300 millimeters or 400 millimeters, maximum 450 millimeter, this height can allow that shell is endways puts into this dewaxing kettle, namely the rising head of shell and cast gate all downward, can flow out downwards after wax-pattern dissolves under gravity.
When shell is more than 1 meter, cannot put into dewaxing kettle with vertical direction, only can level put into, such rising head cast gate, towards now not down, just cannot flow out from rising head and cast gate after wax-pattern dissolves.In prior art, under the bottom of secondary running channel, usually offer multiple de-waxing hole to the wax-pattern after discharging fusing, the shell obtained after dewaxing just leaves a lot of holes.This some holes can reduce the firmness degree of shell, also needs to repair this some holes after dewaxing in order to avoid metal liquid stream during cast goes out shell.In addition, for the shell of horizontal positioned, wax liquid still cannot thoroughly be got rid of by the de-waxing hole bottom secondary running channel.
Summary of the invention
(1) technical problem that will solve
The invention provides a kind of steam dewaxing still and the process for dewaxing based on described steam dewaxing still, to solve the investment casting shell problem that the discharge of wax liquid is difficult and wax liquid row is unclean in the fabrication process, and improve the firmness degree of investment casting shell and the efficiency of whole model casting operation.
(2) technical scheme
In order to solve the problems of the technologies described above, the invention provides a kind of steam dewaxing still, be steam jacket between the shell of described dewaxing kettle body and inner bag, described shell is provided with high steam interface, described inner bag is provided with multiple valve, and the lower of one end of described dewaxing kettle body is provided with the outlet of wax liquid.Multiple valves that described inner bag is arranged are connected with computer, and computer controls described valve and partially opens or all open.
Optionally, in described steam jacket, distilled water is housed, is provided with liquid level sensor in steam jacket, described liquid level sensor is connected with described computer.
Optionally, be provided with pressure sensor and temperature sensor in described acting chamber and steam jacket, described pressure sensor is connected with described computer with temperature sensor.
Optionally, described dewaxing kettle body is connected with tilting gearing, and described tilting gearing makes described dewaxing kettle body tilt, and dewaxing kettle body tilts to drive investment casting shell to tilt to make the rising head of investment casting shell and cast gate all downward or tiltedly below.The fixture for fixing investment casting shell is provided with in the acting chamber that described inner bag is formed.
Optionally, described tilting gearing comprises firm banking and telescopic mounting, described dewaxing kettle body be provided with wax liquid outlet one end and described firm banking hinged by jointed shaft; Described telescopic mounting comprises fixed part and service portion, and described fixed part is fixedly connected with described firm banking, and described service portion can do reciprocating linear motion relative to described fixed part, and the direction of motion is vertical direction; This telescopic mounting service portion and described dewaxing kettle body hinged, under the effect of this telescopic mounting, described dewaxing kettle body can rotate around the jointed shaft of itself and described firm banking.
Optionally, described tilting gearing comprises telescopic mounting, support column, firm banking and wedge structure, described dewaxing kettle body be provided with wax liquid outlet one end by jointed shaft and described firm banking hinged, described telescopic mounting comprises fixed part and service portion, described fixed part is fixedly connected with described firm banking, described service portion can do reciprocating linear motion relative to described fixed part, and the direction of motion is vertical direction; Described dewaxing kettle body bottom portion is provided with wedge structure, this wedge structure bottom surface has different height along the described telescopic mounting direction of motion, the service portion of described telescopic mounting is provided with the support column of level altitude, and this support column top contacts with described wedge structure bottom surface.
Optionally, slide rail is provided with between described support column and described firm banking.
Optionally, described telescopic mounting is cylinder or hydraulic cylinder.
Optionally, described tilting gearing comprises power set, disc wheel and firm banking, described dewaxing kettle body be provided with wax liquid outlet one end and described firm banking hinged by jointed shaft, this dewaxing kettle body offers level trough; Position, described disc wheel axis is provided with central shaft, the position of departing from axis is provided with centrifugal shaft, described disc wheel is arranged at described firm banking by central shaft is rotatable, and described centrifugal shaft is arranged in described level trough, and can do rectilinear motion in described level trough; It is dynamic that described power set drive described disc wheel to walk around around central shaft.
Optionally, described fixture comprises fixing hole and flexible rope, and described fixing hole is arranged on the inwall of described acting chamber, and described flexible rope is through fixing hole.During for fixing investment casting shell, the investment casting shell in described flexible rope and described acting chamber is tangent or be wound around, two free ends knottings of described flexible rope.
Optionally, be provided with pressure sensor and temperature sensor in described acting chamber and steam jacket, described pressure sensor is connected with described computer with temperature sensor.
The present invention also provides a kind of process for dewaxing based on above-mentioned steam dewaxing still, is made up of following steps:
A. investment casting shell is put into described acting chamber, in described steam jacket, pass into high steam;
B. open the whole valves on described inner bag simultaneously, after the pressure in described acting chamber reaches preset value, close described valve, certain time;
C. make the high steam interface on shell communicate with air, substep opens valve on inner bag;
D. open the wax liquid outlet on dewaxing kettle body, investment casting shell is shifted out dewaxing kettle body, complete dewaxing.
For the dewaxing kettle having tilting gearing, the present invention also provides a kind of process for dewaxing based on above-mentioned steam dewaxing still, is made up of following steps:
A. investment casting shell is crouched to putting into described acting chamber, and fix investment casting shell by fixture, in described steam jacket, pass into high steam;
B. open the whole valves on described inner bag simultaneously, after the pressure in described acting chamber reaches preset value, close described valve, certain time;
C. make the high steam interface on shell communicate with air, substep opens valve on inner bag;
D. open the wax liquid outlet on dewaxing kettle body, tilting gearing drives dewaxing kettle body to tilt, and after wax liquid flows to end, investment casting shell is shifted out dewaxing kettle body, completes dewaxing.
(3) beneficial effect
Steam dewaxing still provided by the invention and having the following advantages based on tool in the dilatory method of this device:
1) the present invention carries out preheating by the high steam in steam jacket to described inner bag, after high steam enters acting chamber fast from steam jacket, can not lower the temperature because of the inner bag touching normal temperature, the temperature of high steam reduces not only can make himself pressure drop, also can form condensed water on inner bag.And the high steam reducing pressure probably can not resist the inner wax liquid expanded because dissolving of investment casting shell to the pressure of investment casting shell, thus investment casting shell is caused to break; After the condensed water on inner bag is mixed into wax liquid, adds the difficulty of wax liquid recycling, and increase production cost.
2) the present invention arranges multiple valve on inner bag, and multiple valve provides multiple higher pressure steam inlet, and what can make acting chamber builds that to press through journey faster; After wax liquid discharges investment casting shell, Open valve gradually, make the pressure slow releasing in acting chamber, avoid in prior art the phenomenon causing the organization internal of investment casting shell formation micro-crack even to burst because the pressure in the institutional framework of investment casting shell discharges suddenly, micro-crack on investment casting shell can cause investment casting shell to run away in casting process, reduces the quality of foundry goods.
3) the present invention makes dewaxing kettle tilt by tilting gearing, wax liquid can flow out investment casting shell along major-minor running channel and dead head under gravity smoothly, instead of flowed out by the aperture on many investment casting shells, wax liquid in such investment casting shell is residual can be reduced, and eliminate the operation in the dewaxing hole of repairing on investment casting shell, improve production efficiency.
Accompanying drawing explanation
Fig. 1 is the first embodiment of a kind of steam dewaxing still provided by the invention;
Fig. 2 is the schematic diagram in the A-A cross section in Fig. 1;
Fig. 3 is the second embodiment of a kind of steam dewaxing still medium dip device provided by the invention;
Fig. 4 is three kinds of embodiments of a kind of steam dewaxing still medium dip device provided by the invention.
Number in the figure:
1: dewaxing kettle body, 101: shell, 102: steam jacket, 103: inner bag, 104: valve, 105: high steam interface, 106: fixing hole, 107: flexible rope, 108: hermatic door, 109: wax liquid exports, 110: acting chamber;
2: tilting gearing, 201: hydraulic cylinder, 202: wedge structure, 203: support column;
3: rotate standard shaft;
401: disk wheel seat, 402: disc wheel, 403: disk wheel shaft, 404: centrifugal shaft, 405: level trough;
5: firm banking.
Detailed description of the invention
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following instance for illustration of the present invention, but is not used for limiting the scope of the invention.
Embodiment 1
With reference to shown in Fig. 1, steam dewaxing still of the present invention, comprising: wax still body 1 and tilting gearing 2.
Be steam jacket 102 between the shell 101 of described dewaxing kettle body 1 and inner bag 103, in steam jacket 102, store distilled water.Described shell 101 is provided with high steam interface 105, and described inner bag 103 is provided with multiple valve 104.
First high steam is poured steam jacket 102 by high steam interface 105, can carry out preheating to described acting chamber 110, after preventing high steam from directly entering acting chamber 110, the inner bag 103 of contact lower temperature is lowered the temperature and then slows down the voltage built-up rate in acting chamber 10.Decrease the condensed water that high steam produces on inner bag 103 simultaneously, the water content in wax liquid is reduced, thus the recovery utilization rate that improve wax liquid reduces the recycling difficulty of wax liquid.
A kind of distribution mode of valve 104 on inner bag 103 can be as depicted in figs. 1 and 2.Described inner bag 103 can be entered by multiple valve 104 be evenly distributed in the high steam of steam jacket 102; thus the voltage built-up rate in described inner bag 103 is accelerated; completed before wax-pattern dissolves by high temperature action but also do not expand and build pressure, be conducive to protecting the investment casting shell in described acting chamber 110.
The fixture for fixing investment casting shell is provided with in the acting chamber 110 that inner bag 103 is formed.The lower of one end of described dewaxing kettle body 1 is provided with wax liquid outlet 109.
The diameter of described acting chamber 110 is generally designed to 500 millimeter.For the investment casting shell of height lower than 500 millimeters, can vertically put into.For the investment casting shell of height higher than 500 millimeters, then need laterally to enter this acting chamber 110.
Described fixture comprises fixing hole 106 and flexible rope 107, and described fixing hole 106 is arranged on the inwall of described acting chamber, and described flexible rope 107 is through fixing hole.During for fixing investment casting shell, described flexible rope 107 is tangent or be wound around with the investment casting shell in described acting chamber 110, and two free ends of flexible rope 107 are in the close hermatic door 108 1 sections knotting of investment casting shell.Fixing hole 106 can be located on the bottom surface of described acting chamber 110, also can be arranged on the side of described acting chamber 110, the fixing hole 106 of diverse location and flexible rope 107 contribute to upper fixing investment casting shell from different directions, play the effect fixedly secured.
Hermatic door 108 is closed after investment casting shell enters acting chamber 110, and can keep satisfactory sealing state under the working environment of high temperature, high pressure.
Described tilting gearing 2 comprises hydraulic cylinder 201, support column 203, firm banking 5 and wedge structure 202, one end that described dewaxing kettle body 1 is provided with wax liquid outlet 109 is hinged with described firm banking 5 by rotating standard shaft 3, the cylinder body of described hydraulic cylinder 201 is fixedly connected with described firm banking 5, and the direction of motion of the push rod of described hydraulic cylinder 201 is horizontal direction; Wedge structure 202 is provided with bottom described dewaxing kettle body 1, the bottom surface of this wedge structure 202 has different height along the direction of motion of the push rod of described hydraulic cylinder 201, the push rod of described hydraulic cylinder 201 is connected with support column 203, and this support column 203 top contacts with described wedge structure 202 bottom surface.
The push rod of described hydraulic cylinder 201 moves to one end not having wax liquid to export 109 of dewaxing kettle body 1, drive dewaxing kettle body 1 to tilt, dewaxing kettle body 1 tilts to drive investment casting shell to tilt to make the rising head of investment casting shell and cast gate all downward or tiltedly below.
After investment casting shell laterally enters described acting chamber 110, cast gate and rising head are all not down, wax liquid is got rid of more difficult, prior art is typically employed in the method described investment casting shell being offered multiple fabrication hole and realizes, but the method can affect the crudy of described investment casting shell, there is significant limitation, adopt in the present invention and use the mode of tilting gearing to solve as above problem.
Multiple valves 104 that described inner bag 103 is arranged are connected with computer (scheming not shown), and computer controls described valve 104 and partially opens or all open.In acting chamber 110 stress-relief process, the mode that described valve 104 progressively increases with quantity is opened gradually, and so design can realize slow step-down, avoids causing damage to investment casting shell in reduction of blood pressure in high-speed process.The opening sequence of different valves 104 can be selected to adapt to different investment casting shells.
Optionally, pressure sensor and temperature sensor is provided with in described acting chamber and steam jacket 102, described pressure sensor is connected with described computer with temperature sensor, and computer can control the opening and closing of high steam interface 105 and valve 104 according to the force value of pressure sensor and temperature sensor and temperature value.
Distilled water can be housed in described steam jacket 102, be provided with liquid level sensor in steam jacket 102, for the water level of the distilled water in perception steam jacket 102, described liquid level sensor is connected with described computer.
Based on a process for dewaxing for above-mentioned steam dewaxing still, be made up of following steps:
A. investment casting shell is crouched to putting into described acting chamber, and fix described investment casting shell by fixture, in described steam jacket, pass into high steam;
B. open the whole valves 104 on described inner bag 103 simultaneously, after the pressure in described acting chamber 103 reaches preset value, close described valve 104, certain time;
C. make the high steam interface 105 on shell 101 communicate with air, substep opens valve 104 on inner bag;
D. open the wax liquid outlet 109 of steam dewaxing still, tilting gearing 2 drives dewaxing kettle body 1 to tilt, and after wax liquid flows to end, investment casting shell is shifted out dewaxing kettle body 1, completes dewaxing.
Embodiment 2
As shown in Figure 3, the third embodiment of a kind of steam dewaxing still medium dip device provided by the invention.
Described tilting gearing comprises power set (not shown), disc wheel 402, disc base 401, level trough 405, centrifugal shaft 404, disk wheel shaft 403 and firm banking 5.Described power set have rotation and export.Rotating output can select motor or internal combustion engine to realize, or other can realize the device and the combination that rotate output.
Logical being articulated with described firm banking 5 in one end that described dewaxing kettle body 1 is provided with wax liquid outlet 109 rotates standard shaft 3.Described disc wheel 402 is circular plate-like shape structure.This position, disc wheel 402 axis arranges disk wheel shaft 403, and described disc wheel 402 is by the rotatable disc base 401 be arranged on described firm banking of disk wheel shaft 403.The position that described disc wheel 402 departs from axis is provided with the centrifugal shaft 404 coordinated with described dewaxing kettle body 1.Described dewaxing kettle body 1 offers level trough 405.Described centrifugal shaft 404 is arranged in described level trough 405, and can do rectilinear motion in described level trough 405.
Described power set Direct driver or drive described disc wheel 402 to rotate around disk wheel shaft 403 by speed change gear, thus realize the inclination of described dewaxing kettle body 1.
In the present embodiment, connecting rod can be adopted to replace disc wheel, cam structure also can be adopted to replace disc wheel.
In this enforcement, only realize principle and implement device having done corresponding improvement at tilting action, other structures can with reference to the first embodiment mentioned above.
Embodiment 3
As shown in Figure 4, the second embodiment of a kind of steam dewaxing still medium dip device provided by the invention.
Described tilting gearing comprises hydraulic cylinder 201 and firm banking 5.Described firm banking 5 contacts with ground or other supporters and coordinates, and is basic support and fixed structure.Described dewaxing kettle body 1 is provided with one end of wax liquid outlet 109 and firm banking 5 is articulated with and rotates standard shaft 3.The direction of motion of the push rod of described hydraulic cylinder 201 is vertical direction, and described push rod and dewaxing kettle body 1 hinged.Horizontal direction of can prolonging hydraulic cylinder 201 moves under the effect of the push rod of hydraulic cylinder 201, and dewaxing kettle body 1 can rotate around with described rotation standard shaft 3, namely realizes the inclination of this dewaxing kettle body.
In this enforcement, only realize principle and implement device having done corresponding improvement at tilting action, other structures can with reference to the first embodiment mentioned above.
In pressure correction machine of the present invention and bearing calibration thereof, tool has the following advantages:
1) the present invention carries out preheating by the high steam in steam jacket to described inner bag, after high steam enters acting chamber fast from steam jacket, can not lower the temperature because of the inner bag touching normal temperature, the temperature of high steam reduces not only can make himself pressure drop, also can form condensed water on inner bag.And the high steam reducing pressure probably can not resist the inner wax liquid expanded because dissolving of investment casting shell to the pressure of investment casting shell, thus investment casting shell is caused to break; After the condensed water on inner bag is mixed into wax liquid, adds the difficulty of wax liquid recycling, and increase production cost.
2) the present invention arranges multiple valve on inner bag, wax liquid to discharge after investment casting shell Open valve gradually, make the pressure slow releasing in acting chamber, avoid in prior art the phenomenon causing the organization internal of investment casting shell formation micro-crack even to burst because the pressure in the institutional framework of investment casting shell discharges suddenly, micro-crack on investment casting shell can cause investment casting shell to run away in casting process, reduces the quality of foundry goods.
3) the present invention makes dewaxing kettle tilt by tilting gearing, wax liquid can flow out investment casting shell along major-minor running channel and dead head under gravity smoothly, instead of flowed out by the aperture on many shells, wax liquid in such investment casting shell is residual can be reduced, and eliminate the operation in the dewaxing hole of repairing on investment casting shell, improve production efficiency.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a steam dewaxing still, is characterized in that: be steam jacket between the shell of dewaxing kettle body and inner bag, described shell is provided with high steam interface, and described inner bag is provided with multiple valve, and the lower of one end of described dewaxing kettle body is provided with the outlet of wax liquid;
Multiple valves that described inner bag is arranged are connected with computer, and computer controls described valve and partially opens or all open.
2. steam dewaxing still according to claim 1, it is characterized in that: in described steam jacket, distilled water is housed, is provided with liquid level sensor in steam jacket, described liquid level sensor is connected with described computer.
3. steam dewaxing still according to claim 1, is characterized in that: be provided with pressure sensor and temperature sensor in described acting chamber and steam jacket, described pressure sensor is connected with described computer with temperature sensor.
4. steam dewaxing still according to claim 1, it is characterized in that: described dewaxing kettle body is connected with tilting gearing, described tilting gearing makes described dewaxing kettle body tilt, and dewaxing kettle body tilts to drive investment casting shell to tilt to make the rising head of investment casting shell and cast gate all downward or tiltedly below;
The fixture for fixing investment casting shell is provided with in the acting chamber that described inner bag is formed.
5. steam dewaxing still according to claim 4, is characterized in that: described tilting gearing comprises firm banking and telescopic mounting, described dewaxing kettle body be provided with wax liquid outlet one end and described firm banking hinged by jointed shaft; Described telescopic mounting comprises fixed part and service portion, and described fixed part is fixedly connected with described firm banking, and described service portion can do reciprocating linear motion relative to described fixed part, and the direction of motion is vertical direction; This telescopic mounting service portion and described dewaxing kettle body hinged, under the effect of this telescopic mounting, described dewaxing kettle body can rotate around the jointed shaft of itself and described firm banking.
6. steam dewaxing still according to claim 4, it is characterized in that: described tilting gearing comprises telescopic mounting, support column, firm banking and wedge structure, described dewaxing kettle body be provided with wax liquid outlet one end by jointed shaft and described firm banking hinged, described telescopic mounting comprises fixed part and service portion, described fixed part is fixedly connected with described firm banking, described service portion can do reciprocating linear motion relative to described fixed part, and the direction of motion is vertical direction; Described dewaxing kettle body bottom portion is provided with wedge structure, this wedge structure bottom surface has different height along the described telescopic mounting direction of motion, the service portion of described telescopic mounting is provided with the support column of level altitude, and this support column top contacts with described wedge structure bottom surface.
7. steam dewaxing still according to claim 4, it is characterized in that: described tilting gearing comprises power set, disc wheel and firm banking, described dewaxing kettle body be provided with wax liquid outlet one end and described firm banking hinged by jointed shaft, this dewaxing kettle body offers level trough; Position, described disc wheel axis is provided with central shaft, the position of departing from axis is provided with centrifugal shaft, described disc wheel is arranged at described firm banking by central shaft is rotatable, and described centrifugal shaft is arranged in described level trough, and can do rectilinear motion in described level trough; It is dynamic that described power set drive described disc wheel to walk around around central shaft.
8. steam dewaxing still according to claim 4, is characterized in that: described fixture comprises fixing hole and flexible rope, described fixing hole is arranged on the inwall of described acting chamber, and described flexible rope is through fixing hole;
During for fixing investment casting shell, the investment casting shell in described flexible rope and described acting chamber is tangent or be wound around, two free ends knottings of described flexible rope.
9., based on a process for dewaxing for the steam dewaxing still described in any one of claim 1-3, it is characterized in that: be made up of following steps:
A. investment casting shell is put into described acting chamber, in described steam jacket, pass into high steam;
B. open the whole valves on described inner bag simultaneously, after the pressure in described acting chamber reaches preset value, close described valve, certain time;
C. make the high steam interface on shell communicate with air, substep opens valve on inner bag;
D. open the wax liquid outlet on dewaxing kettle body, investment casting shell is shifted out dewaxing kettle body, complete dewaxing.
10., based on a process for dewaxing for the steam dewaxing still described in any one of claim 4-8, it is characterized in that: be made up of following steps:
A. investment casting shell is crouched to putting into described acting chamber, and fix described investment casting shell by fixture, in described steam jacket, pass into high steam;
B. open the whole valves on described inner bag simultaneously, after the pressure in described acting chamber reaches preset value, close described valve, certain time;
C. make the high steam interface on shell communicate with air, substep opens valve on inner bag;
D. open the wax liquid outlet on dewaxing kettle body, tilting gearing drives dewaxing kettle body to tilt, and investment casting shell is shifted out dewaxing kettle body, completes dewaxing.
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| CN201510268526.2A CN104889324B (en) | 2015-05-22 | 2015-05-22 | Steam dewaxing kettle and the process for dewaxing based on the device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106077479A (en) * | 2016-07-29 | 2016-11-09 | 安徽帝博工艺美术品制造有限公司 | A kind of dewaxing kettle |
| CN107282878A (en) * | 2016-03-30 | 2017-10-24 | 东营福浩精铸科技有限公司 | High-frequency induction formula dewaxes and wax water separation dewaxing kettle |
| CN107855466A (en) * | 2017-11-09 | 2018-03-30 | 太湖县众瑞精密铸造有限公司 | It is exclusively used in the dewaxing technique of essence casting Ludox |
| CN109175240A (en) * | 2018-09-20 | 2019-01-11 | 贵州安吉航空精密铸造有限责任公司 | A kind of investment casting formwork dewaxing device and investment casting formwork process for dewaxing |
| CN111940678A (en) * | 2020-09-01 | 2020-11-17 | 六安中达信息科技有限公司 | Centrifugal steam dewaxing device for casting |
| CN113600754A (en) * | 2021-08-17 | 2021-11-05 | 湖州南丰机械制造有限公司 | Swing type dewaxing kettle |
| CN113798438A (en) * | 2021-08-23 | 2021-12-17 | 安徽大卫模具有限公司 | Dewaxing device for investment casting |
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| CN107855466A (en) * | 2017-11-09 | 2018-03-30 | 太湖县众瑞精密铸造有限公司 | It is exclusively used in the dewaxing technique of essence casting Ludox |
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| CN111940678A (en) * | 2020-09-01 | 2020-11-17 | 六安中达信息科技有限公司 | Centrifugal steam dewaxing device for casting |
| CN113600754A (en) * | 2021-08-17 | 2021-11-05 | 湖州南丰机械制造有限公司 | Swing type dewaxing kettle |
| CN113798438A (en) * | 2021-08-23 | 2021-12-17 | 安徽大卫模具有限公司 | Dewaxing device for investment casting |
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