CN102145377A - Method and equipment for drying white pattern through microwave in evaporable pattern casting - Google Patents
Method and equipment for drying white pattern through microwave in evaporable pattern casting Download PDFInfo
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- CN102145377A CN102145377A CN2011101002462A CN201110100246A CN102145377A CN 102145377 A CN102145377 A CN 102145377A CN 2011101002462 A CN2011101002462 A CN 2011101002462A CN 201110100246 A CN201110100246 A CN 201110100246A CN 102145377 A CN102145377 A CN 102145377A
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Abstract
The invention discloses a method and equipment for drying a white pattern through microwave in evaporable pattern casting. The method adopts microwave equipment for drying the white pattern brushed with coating for three times, the white pattern is heated uniformly, the outer-layer coating of the white pattern is ensured to be dried, and the white pattern does not deform or shrink due to microwave heating, therefore, the drying efficiency of the white pattern coating can be greatly improved, the batch production of products is realized, a coal-fired boiler is not needed to supply steam, the electro-thermal conversion efficiency is high, the energy is saved, and the environment is protected. Meanwhile, the labor cost of enterprises is reduced, the economic benefits of the enterprises are improved, and the invention is particularly applicable to white pattern drying in the evaporable pattern casting.
Description
Technical field
The invention belongs to the white mould coating of lost foam casting drying field, specifically is that a kind of technology with the microwave drying material is applied to white mould coating oven dry of lost foam casting and equipment thereof.
Background technology
(lost foam casting claims cavityless casting again to lost foam casting, be will be similar to the casting dimension shape bubbles model bonding be combined into model cluster, after brushing fireproof coating and oven dry, be embedded in vibration molding in the dried quartz sand, under negative pressure, pour into a mould, make the model gasification, liquid metals occupies modal position, solidify the novel casting method of cooling back formation foundry goods) technology, " green foundry engieering " as 21 century casts pattern because it belongs to environmental protection, produce clean quick, good product quality, production cost is low, be applicable to the characteristic of the production of the production in enormous quantities of foundry goods and special foundry goods, thereby approved by More and more factories enterprise at home and adopt.
Yet the white calligraphy or painting model body of foam belongs to waterproof material, and the baking needed time is longer fully.The top layer of the white mould of foam has also often just been dried in common drying room oven dry, and internal layer still contains moisture, and this is easy to generate a big reason of regurgitating when also being the cast of disappearance mold technique.Compare, some enterprises shelve because of various reasons the white mould of foam more of a specified duration be used for the cast, seldom occur regurgitating, exactly because also the time grown, the moisture of foam Bai Monei just can be evaporated.
In addition, considering needs oven dry behind the white mould brushing paint, and needs 3 times coating of brushing usually, and every layer oven dry needs more than 24 hours usually.Take all factors into consideration thus, the white mould of foam is from being molded into cast, and the centre needs 4-5 days at least, even the time in a week.In the process of industrialized mass, this just requires many drying rooms of depositing the white mould of oven dry, has taken a large amount of factory building spaces, has also expended lot of manpower and material resources.
Summary of the invention
Purpose of the present invention will provide a kind of white mould coating drying efficiency that increases substantially exactly, realize the mass production of product, and do not need coal-burning boiler that steam is provided, the electric conversion efficiency height, energy-conserving and environment-protective also reduce the human cost of enterprise simultaneously, improve the method and the equipment thereof of the white mould of lost foam casting microwave drying of economic benefit of enterprises.
The object of the present invention is achieved like this: the method for the white mould of lost foam casting microwave drying is characterized in that it may further comprise the steps:
(1) the white mould with forming places on the rotary-tray of industrial microwave oven, closes fire door, toasts 3-10 minute, and the power of microwave launcher is 2-4KW/h, and oven temperature is 60-80 ℃, dries the moisture of white mould, makes white modular invariance shape, not atrophy;
(2) with a coating of white mould dip-coating of drying in the previous step, and place on the shelf of inclination and placed 3-5 minute, allow coating trickle till the bulk deposition not;
(3) the white mould of dip-coating being crossed first pass coating places on the rotary-tray of micro-wave oven again, closes fire door, toasts 10-18 minute, the power of microwave launcher is 2-4KW/h, oven temperature is 50-60 ℃, ground floor coating is parched, and make white modular invariance shape, not atrophy;
(4) will repeat above-mentioned steps (2) and (3) twice;
(5) the white mould that three times coating are crossed in the dip-coating that will dry fully places in the hothouse, waits to be cast.
Microwave drying equipment of the present invention is: fixedly connected at least one cover microwave launcher on the two side in the casing connects at least one Liftable type rotating disk, at the fixedly connected axial flow blower in the top of casing in the bottom of casing.
The bottom of casing of the present invention flexibly connects roller-way, and roller-way extends to the outside of casing.
Microwave launcher of the present invention is three covers, and rotating disk is three, is spaced apart 50-150mm between each rotating disk.
Microwave launcher of the present invention adopts dc source, microwave tube, connection waveguide, heater and cooling system to form, and adopts existing microwave launcher version.
The present invention compared with prior art has the following advantages:
Because adopted that the method for the white mould of microwave drying and microwave have that process velocity is fast, product quality is high, are quick on the draw, homogeneous heating, thermal efficiency height, occupation area of equipment be little, thereby,
1, avoided environment high temperature, improved working condition, taken that plant area is little, working environment and sanitary condition also be greatly improved;
2, can save labour, raising work efficiency, minimizing substandard products, thereby reduce cost;
3, can increase substantially white mould coating drying efficiency,, realize the mass production of product, and do not need coal-burning boiler that steam is provided, the electric conversion efficiency height, energy-conserving and environment-protective also reduce the human cost of enterprise simultaneously, improve economic benefit of enterprises;
In a word, microwave technology is applied to the lost foam casting industry and has broad prospects.
Description of drawings
Fig. 1 is a present device concrete structure schematic diagram;
Fig. 2 is the vertical view of Fig. 1 of the present invention;
1, roller-way 2, casing 3, axial flow blower 4, Bai Mo 5, rotating disk
6, microwave launcher
The specific embodiment
(1) the white mould with forming places on the rotary-tray of industrial microwave oven, closes fire door, toasts 3-10 minute, and the power of microwave launcher is 2-4KW/h, and oven temperature is 60-80 ℃, dries the moisture of white mould, makes white modular invariance shape, not atrophy;
(2) with a coating of white mould dip-coating of drying in the previous step, and place on the shelf of inclination and placed 3-5 minute, allow coating trickle till the bulk deposition not;
(3) the white mould of dip-coating being crossed first pass coating places on the rotary-tray of micro-wave oven again, closes fire door, toasts 10-18 minute, the power of microwave launcher is 2-4KW/h, oven temperature is 50-60 ℃, ground floor coating is parched, and make white modular invariance shape, not atrophy;
(4) will repeat above-mentioned steps (2) and (3) twice;
(5) the white mould that three times coating are crossed in the dip-coating that will dry fully places in the hothouse, waits to be cast.
The equipment of the white mould of lost foam casting microwave drying is micro-wave oven, and it is made up of following structure:
Fixedly connected three cover microwave launchers 6 on the two side in the baking oven 2, microwave launcher 6 adopts existing version, form by dc source, microwave tube, connection waveguide, heater and cooling system, bottom at the baking oven 2 of corresponding microwave launcher 6 respectively connects a Liftable type rotating disk 5, be spaced apart 50-150mm between each rotating disk 5, the fixedly connected axial flow blower 3 at the top of baking oven 2, the bottom of baking oven 2 flexibly connects roller-way 1, and roller-way 1 extends to the outside of baking oven 2.
The power of described microwave launcher is 2-4KW/h, and the exhausting amount of axial flow blower is 10-100m
3/ h, the rotary speed of rotating disk is 3-8r/min.
Concrete drying program:
1,3 white moulds to be dried on the parallel in orbit traverse;
2, promote track and enter in the casing, Bai Mo falls on the pallet, closes the chamber door, starts microwave and begins dry white mould, and the power of microwave launcher is 2-4KW/h, and the exhausting amount of axial flow blower is 10-100m
3/ h, the rotary speed of rotating disk is 3-8r/min, and be 3.0-10 minute drying time, and white mould weight is reduced to 739 grams by 1000 grams before dry;
3, open the chamber door, get back on the external track pulling out the white mould of drying is in casing;
4, with dried 3 white moulds ground floor coating in the dip-coating respectively, and place on the shelf of inclination and placed 3-5 minute, allow coating trickle till the bulk deposition not;
5, the white mould that will scribble ground floor coating is put on the track, promotes track and enters in the casing, closes the chamber door, starts microwave and begins dry ground floor coating, and the power of microwave launcher is 2-4KW/h, and the exhausting amount of axial flow blower is 10-100m
3/ h, the rotary speed of rotating disk is 3-8r/min, and be 10 minutes drying time, and white mould weight is reduced to 2627 grams by 3800 grams before dry.
6, open the chamber door, get back on the external track pulling out the white mould of drying is in casing;
7, with dried 3 white moulds second layer coating in the dip-coating respectively, and place on the shelf of inclination and placed 3-5 minute, allow coating trickle till the bulk deposition not;
8, the white mould that will scribble second layer coating is put on the track, promotes track and enters in the casing, closes the chamber door, starts microwave and begins dry second layer coating, and the power of microwave launcher is 2-4KW/h, and the exhausting amount of axial flow blower is 10-100m
3/ h, the rotary speed of rotating disk is 3-8r/min, and be 17 minutes drying time, and white mould weight is reduced to 5183 grams by 6589 grams before dry;
9, open the chamber door, get back on the external track pulling out the white mould of drying is in casing;
10, with dried 3 white moulds the 3rd coating in the dip-coating respectively, and place on the shelf of inclination and placed 3-5 minute, allow coating trickle till the bulk deposition not;
11, the white mould that will scribble the 3rd coating is put on the track, promotes track and enters in the casing, closes the chamber door, starts microwave and begins dry the 3rd coating, and the power of microwave launcher is 2-4KW/h, and the exhausting amount of axial flow blower is 10-100m
3/ h, the rotary speed of rotating disk is 3-8r/min, and be 18 minutes drying time, and white mould weight is reduced to 8083 grams by 9856 grams before dry;
12, open the chamber door, get back on the external track, place in the hothouse, wait to be cast pulling out the white mould of drying is in casing.
Claims (5)
1. the method for the white mould of lost foam casting microwave drying is characterized in that it may further comprise the steps:
(1) the white mould with forming places on the rotary-tray of micro-wave oven, closes fire door, toasts 3-10 minute, and the power of microwave launcher is 2-4KW/h, and oven temperature is 60-80 ℃, dries the moisture of white mould, makes white modular invariance shape, not atrophy;
(2) with a coating of white mould dip-coating of drying in the previous step, and place on the shelf of inclination and placed 3-5 minute, allow coating trickle till the bulk deposition not;
(3) the white mould of dip-coating being crossed first pass coating places on the rotary-tray of micro-wave oven again, closes fire door, toasts 10-18 minute, the power of microwave launcher is 2-4KW/h, oven temperature is 50-60 ℃, ground floor coating is parched, and make white modular invariance shape, not atrophy;
(4) will repeat above-mentioned steps (2) and (3) twice;
(5) the white mould that three times coating are crossed in the dip-coating that will dry fully places in the hothouse, waits to be cast.
2. by the equipment of the white mould of the described lost foam casting microwave drying of claim 1, it is characterized in that fixedly connected at least one cover microwave launcher (6) on the interior two side of casing (2), connect at least one Liftable type rotating disk (5) in the bottom of casing (2), at the fixedly connected axial flow blower in the top of casing (2) (3).
3. the equipment of the white mould of lost foam casting microwave drying according to claim 2 is characterized in that the bottom of described casing (2) flexibly connects roller-way (1), and roller-way (1) extends to the outside of casing (2).
4. according to the equipment of claim 2 or the white mould of 3 described lost foam casting microwave dryings, it is characterized in that described microwave launcher (6) is three covers, rotating disk (5) is three.
5. the equipment of the white mould of lost foam casting microwave drying according to claim 4 is characterized in that the 50-150mm that is spaced apart between described each rotating disk (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101002462A CN102145377A (en) | 2011-04-09 | 2011-04-09 | Method and equipment for drying white pattern through microwave in evaporable pattern casting |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101002462A CN102145377A (en) | 2011-04-09 | 2011-04-09 | Method and equipment for drying white pattern through microwave in evaporable pattern casting |
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| CN102145377A true CN102145377A (en) | 2011-08-10 |
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| CN2011101002462A Pending CN102145377A (en) | 2011-04-09 | 2011-04-09 | Method and equipment for drying white pattern through microwave in evaporable pattern casting |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104275438A (en) * | 2014-07-21 | 2015-01-14 | 渠县金城合金铸业有限公司 | Evanescent mode vacant-shell casting technique of double-saddle balance shaft shell |
| CN106513583A (en) * | 2016-12-24 | 2017-03-22 | 句容市有色金属铸造厂 | Drying oven for lost foam casting foam model |
| CN106694811A (en) * | 2016-12-24 | 2017-05-24 | 句容市有色金属铸造厂 | Foam model oven |
| CN106825397A (en) * | 2016-12-24 | 2017-06-13 | 句容市有色金属铸造厂 | A kind of baking oven of dispellable mould casting with runing rest |
| CN106825428A (en) * | 2016-12-30 | 2017-06-13 | 重庆市九明机械制造有限公司 | Model cluster drying unit |
| CN106825398A (en) * | 2016-12-24 | 2017-06-13 | 句容市有色金属铸造厂 | A kind of dispellable mould casting baking oven |
| CN108907092A (en) * | 2018-06-29 | 2018-11-30 | 安徽大卫模具有限公司 | A kind of accurate drying unit of evaporative pattern |
| CN109351914A (en) * | 2018-12-13 | 2019-02-19 | 昌邑市祥鑫机械制造有限公司 | The control of gear box casing class product evaporative pattern coating layer thickness and fast detecting method |
| CN110038998A (en) * | 2019-05-15 | 2019-07-23 | 扬州双集机械有限公司 | A kind of disappearance die manufacturing process |
| CN110793299A (en) * | 2019-12-04 | 2020-02-14 | 湖北光辉节能科技有限公司 | Lost foam pattern microwave drying room and microwave drying method |
| CN114871383A (en) * | 2022-05-19 | 2022-08-09 | 河北鼎沃机械制造有限公司 | Lost foam casting process for base |
| CN115608582A (en) * | 2022-11-15 | 2023-01-17 | 江西联峰熔模铸造有限公司 | Surface treatment process of lost foam |
-
2011
- 2011-04-09 CN CN2011101002462A patent/CN102145377A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104275438A (en) * | 2014-07-21 | 2015-01-14 | 渠县金城合金铸业有限公司 | Evanescent mode vacant-shell casting technique of double-saddle balance shaft shell |
| CN106513583A (en) * | 2016-12-24 | 2017-03-22 | 句容市有色金属铸造厂 | Drying oven for lost foam casting foam model |
| CN106694811A (en) * | 2016-12-24 | 2017-05-24 | 句容市有色金属铸造厂 | Foam model oven |
| CN106825397A (en) * | 2016-12-24 | 2017-06-13 | 句容市有色金属铸造厂 | A kind of baking oven of dispellable mould casting with runing rest |
| CN106825398A (en) * | 2016-12-24 | 2017-06-13 | 句容市有色金属铸造厂 | A kind of dispellable mould casting baking oven |
| CN106825428A (en) * | 2016-12-30 | 2017-06-13 | 重庆市九明机械制造有限公司 | Model cluster drying unit |
| CN108907092A (en) * | 2018-06-29 | 2018-11-30 | 安徽大卫模具有限公司 | A kind of accurate drying unit of evaporative pattern |
| CN109351914A (en) * | 2018-12-13 | 2019-02-19 | 昌邑市祥鑫机械制造有限公司 | The control of gear box casing class product evaporative pattern coating layer thickness and fast detecting method |
| CN109351914B (en) * | 2018-12-13 | 2020-02-07 | 昌邑市祥鑫机械制造有限公司 | Method for controlling and quickly detecting thickness of lost foam coating of transmission case product |
| CN110038998A (en) * | 2019-05-15 | 2019-07-23 | 扬州双集机械有限公司 | A kind of disappearance die manufacturing process |
| CN110793299A (en) * | 2019-12-04 | 2020-02-14 | 湖北光辉节能科技有限公司 | Lost foam pattern microwave drying room and microwave drying method |
| CN114871383A (en) * | 2022-05-19 | 2022-08-09 | 河北鼎沃机械制造有限公司 | Lost foam casting process for base |
| CN115608582A (en) * | 2022-11-15 | 2023-01-17 | 江西联峰熔模铸造有限公司 | Surface treatment process of lost foam |
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Application publication date: 20110810 |