CN101618431A - Energy-saving roasting method for investment casting shuttering - Google Patents
Energy-saving roasting method for investment casting shuttering Download PDFInfo
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- CN101618431A CN101618431A CN200910101260A CN200910101260A CN101618431A CN 101618431 A CN101618431 A CN 101618431A CN 200910101260 A CN200910101260 A CN 200910101260A CN 200910101260 A CN200910101260 A CN 200910101260A CN 101618431 A CN101618431 A CN 101618431A
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Abstract
The invention discloses an energy-saving roasting method for an investment casting shuttering, which comprises the following steps: fully placing trays (2) provided with shuttering to be roasted on an upper-layer roller way (1.1) in a heat exchange furnace (1); fully placing trays (2) provided with the cast shuttering on a lower-layer roller way (1.2) of the heat exchange furnace (1); roasting the shuttering to be cast by using accumulated heat of the cast shuttering; pushing the trays (2) provided with the shuttering to be roasted onto the lower-layer roller way (1.1), and performing sand filling, casting and sand falling on the roasted shuttering on an interlocking machine (10); and pushing the trays (2) provided with the cast shuttering onto the lower-layer roller way (1.2). The method has high heat efficiency, low energy consumption and low cost.
Description
Technical field
The present invention relates to casting method, specifically is a kind of energy-saving roasting method for investment casting shuttering.
Background technology
No matter be to adopt waterglass separately, silester, or Ludox is binding agent, perhaps two kinds of compound model castings all must be carried out low temperature drying and 900-1100 ℃ of high-temperature roasting to formwork behind the fusible pattern, make its potteryization, improve intensity, increase the requirement of gas permeability.At present, domestic most factories adopt the method for coal heating to carry out formwork drying and roasting, do not have to be abandoned because environmental protection reaches mark; And natural gas can't guarantee because supply is not popularized, and can not be widely adopted; Therefore, most factories or prepare to adopt electrically heated method.But electrical drying and roasting formwork be in actual job, because system thermal efficiency is low, power consumption is generally 540KHW/ ton molten steel, be about melting energy consumption 80%, account for 30% of casting total energy consumption.In addition, because water evaporates and decomposition in the formwork can make resistance wire produce the hydrogen embrittlement effect, for the protective resistance silk increases protective sleeve equipment cost is increased, electrical efficiency further reduces.Therefore, this technology is demanded urgently improving.
Summary of the invention
The technical problem to be solved in the present invention is, a kind of system thermal efficiency height, energy consumption is low, cost is low energy-saving roasting method for investment casting shuttering are provided.
Technical scheme of the present invention is, a kind of energy-saving roasting method for investment casting shuttering is provided, and its step comprises:
1., the upper strata roller-way in heat-exchanging furnace piles the pallet that the formwork for the treatment of roasting is housed, and piles the pallet of the formwork after casting is housed at lower floor's roller-way of heat-exchanging furnace;
The formwork that roasting is treated in the accumulation of heat of the formwork after 2., utilization is cast carries out roasting;
3., the pallet that the formwork for the treatment of roasting will be housed is pushed on the upper strata roller-way in the heat-exchanging furnace by batch pushing machine I by pallet from feed end, the pallet that the formwork after the roasting is housed that simultaneously quantity is equated is released from discharge end, and pulls out machine I by pallet and move lifting mechanism I I to;
4., pallet that the formwork after the roasting will be housed hangs gear by the pallet charging crane from lifting mechanism I I, then finishes back-up sand, casting, knockout on gear, the formwork after the casting is hung on the rise descending mechanism II from gear by the pallet charging crane;
5., the pallet that the formwork after the casting will be housed drops to the height of the feed end of the formwork after the casting from the height of the discharge end of the formwork for the treatment of roasting of heat-exchanging furnace by lifting mechanism I I;
6., the pallet that the formwork after the casting will be housed is pushed on lower floor's roller-way in the heat-exchanging furnace by batch pushing machine II by pallet from feed end, the pallet that cooled formwork is housed that quantity is equated is released from discharge end simultaneously, and pulls out machine II by pallet and move on the lifting mechanism I;
7., the pallet that the formwork for the treatment of roasting will be housed rises to the height of the feed end of the formwork for the treatment of roasting from the height of the discharge end of the cooled formwork of heat-exchanging furnace by lifting mechanism I.
After adopting above method, the present invention compared with prior art, have following remarkable advantage and beneficial effect: owing to utilize the accumulation of heat of the formwork after the casting that is placed on the lower floor's roller-way in the heat-exchanging furnace that the formwork for the treatment of roasting of placing the upper strata roller-way is carried out drying and roasting, making pallet that the formwork for the treatment of roasting is housed push machine I by pallet is pushed on the upper strata roller-way in the heat-exchanging furnace, the pallet that the formwork after the roasting is housed that simultaneously quantity is equated is released from discharge end, and pulls out machine I by pallet and move lifting mechanism I I to; The pallet that formwork after the casting is housed is pushed on lower floor's roller-way in the heat-exchanging furnace by batch pushing machine II by pallet from feed end, the pallet that cooled formwork is housed that quantity is equated is released from discharge end simultaneously, and pull out machine II by pallet and move lifting mechanism I to, can make the pallet that formwork is housed to pass in and out heat-exchanging furnace fast like this, increase mechanization degree, reduce heat loss, pallet is as the formwork roasting, back-up sand, casting and the unified carrier of knockout operation.Formwork after the roasting is hung by lifting mechanism I I by the pallet charging crane and carries out back-up sand, casting, knockout on the gear fast, and then is hung on the lifting mechanism I I by the pallet charging crane, increases mechanization degree, reduces heat loss.In sum, the present invention need not to re-use electrical heating or coal heating, makes the system thermal efficiency height, and energy consumption is low, and equipment cost is increased.
As improvement, with described upper strata roller-way be located at lower floor's roller-way directly over, make two kinds of formworks under good convection current very radiation condition, carry out sufficient heat exchange.
As improvement, the formwork after placing the equal formwork for the treatment of roasting of quantity and cast in heat-exchanging furnace guarantees to treat that the formwork of roasting has enough thermals source.
Description of drawings
The structural representation of the device that accompanying drawing 1 need be implemented for energy-saving roasting method for investment casting shuttering of the present invention (two heat-exchanging furnaces).
Accompanying drawing 5 is the schematic top plan view of the gear of baking device for energy-saving investment casting formwork shell of the present invention;
Accompanying drawing 7 is the E-E generalized section of Fig. 6.
As shown in the figure: as shown in the figure: 1, heat-exchanging furnace, 1.1, the upper strata roller-way, 1.2, lower floor's roller-way, 2, pallet, 3, lifting mechanism I, 4, pallet pushes machine I, 5, pallet is pulled out machine I, and 6, lifting mechanism I I, 7, the pallet charging crane, 8, pallet is pulled out machine II, and 9, pallet pushes machine II, 10, gear, 10.1, sandbox, 11, electronic casting ladle, 12, the heap sand dispenser, 13, three-dimensional plain bumper, 14, induction furnace.
The specific embodiment
The invention will be further described below in conjunction with the drawings and specific embodiments.
As Fig. 1, Fig. 2, shown in Figure 3, it is as follows that energy-saving roasting method for investment casting shuttering of the present invention need be implemented the device that adopted, comprise heat-exchanging furnace 1, lower floor's roller-way 1.2 of the pallet 2 of the formwork after described heat-exchanging furnace interior 1 is provided with the upper strata roller-way 1.1 of the pallet 2 that is used to place the formwork for the treatment of roasting and is used to place casting, discharge end at heat-exchanging furnace 1 is provided with standby heating, so that start, start after the blowing out, and use when low because of fortuitous event causes furnace temperature to be crossed at new stove; Feed end at heat-exchanging furnace 1 is provided with extract system, to get rid of the water vapour and the cooling of bleeding that formwork occurred in the low temperature drying stage when the discharge end temperature is too high.Described pallet 2 is made for lower weight space formula heat resisting steel, as formwork roasting, back-up sand, casting and the unified carrier of knockout operation.The appearance and size of representative pallet 2 is 1000 * 800 * 60, inner uniform 100 * 100 the thin-walled square hole that is of a size of, and the pallet substance is about 75 kilograms; Can adorn formwork is about 137.5 kilograms, about 250 kilograms of the molten steel of can casting.The outside of the upper strata roller-way 1.1 of the formwork feed end for the treatment of roasting of described heat-exchanging furnace 1 is provided with pallet and pushes machine I 4, and the outside of the upper strata roller-way 1.1 of its corresponding discharge end is provided with pallet and pulls out machine I 5; The outside of lower floor's roller-way 1.2 of the formwork feed end after the casting of described heat-exchanging furnace 1 is provided with pallet and pushes machine II 9, and the outside of lower floor's roller-way 1.2 of its corresponding discharge end is provided with pallet and pulls out machine II 8.As Fig. 4, Fig. 5, Fig. 6, shown in Figure 7, the discharge end outside of the formwork after the roasting of described heat-exchanging furnace 1 is provided with the gear 10 that can carry out back-up sand, casting, knockout to the formwork after the roasting, gear 10 is made up of three sandboxes 10.1, sandbox 10.1 is of a size of: 1200 * 1000 * 500, guaranteed that formwork transmits fast at inter process.Heap sand dispenser 12 is arranged above the back-up sand station, be provided with three-dimensional plain bumper 13 in its bottom; Above the casting station, be provided with electronic casting ladle 11 operation single tracks; At the knockout station, the sand valve that unloads of sandbox bottom can be opened automatically, makes heap sand by emptying fast.Certainly some formwork need not knockout, only carries out one or two functions in back-up sand, casting, the knockout, and described gear 10 is conventional commercially available equipment.Described heat-exchanging furnace 1 two ends are provided with can be in the lifting mechanism I 3 of the height oscilaltion of the discharge end of the height of the feed end of the formwork for the treatment of roasting and the formwork after the casting and can be at the lifting mechanism I I 6 of the height oscilaltion of the feed end of the height of the discharge end of the formwork for the treatment of roasting and the formwork after the casting, and described lifting mechanism I 3 and lifting mechanism I I 6 are conventional commercially available equipment.Described lifting mechanism I I 6 tops are provided with the pallet charging crane 7 that pallet 2 can be hung between lifting mechanism I I6 and gear 10, realize from formwork roasting, loading and unloading, back-up sand, casting, shakeout operation mechanization and automation.Described pallet charging crane 7 conventional commercially available equipment.
Energy-saving roasting method for investment casting shuttering of the present invention may further comprise the steps
1., the upper strata roller-way 1.1 in heat-exchanging furnace 1 piles the pallet 2 that the formwork for the treatment of roasting is housed, and piles the pallet 2 of the formwork after casting is housed at lower floor's roller-way 1.2 of heat-exchanging furnace 1;
The formwork that roasting is treated in the accumulation of heat of the formwork after 2., utilization is cast carries out roasting;
3., the pallet 2 that the formwork for the treatment of roasting will be housed is pushed on the upper strata roller-way 1.2 in the heat-exchanging furnace 1 by batch pushing machine I 4 by pallet from feed end, the pallet 2 that the formwork after the roasting is housed that simultaneously quantity is equated is released from discharge end, and pulls out machine I 5 by pallet and move on the lifting mechanism I I 6;
4., the pallet 2 that the formwork after the roasting will be housed hangs gear 10 by pallet charging crane 7 from lifting mechanism I I 6, then on gear 10, finish back-up sand, casting, knockout, the formwork after the casting is hung on the rise descending mechanism II 6 from gear 10 by pallet charging crane 7;
5., the pallet 2 that the formwork after the casting will be housed drops to the height of the feed end of the formwork after the casting from the height of the discharge end of the formwork for the treatment of roasting of heat-exchanging furnace 1 by lifting mechanism I I 6;
6., the pallet 2 that the formwork after the casting will be housed is pushed on lower floor's roller-way 1.2 in the heat-exchanging furnace 1 by batch pushing machine II 9 by pallet from feed end, the pallet that cooled formwork is housed 2 that quantity is equated is released from discharge end simultaneously, and pulls out machine II 8 by pallet and move on the lifting mechanism I 3;
7., the pallet 2 that the formwork for the treatment of roasting will be housed rises to the height of the feed end of the formwork for the treatment of roasting from the height of the discharge end of the cooled formwork of heat-exchanging furnace 1 by lifting mechanism I 3.
With described upper strata roller-way 1.1 be located at lower floor's roller-way 1.2 directly over.
Formwork after in heat-exchanging furnace 1, placing the equal formwork for the treatment of roasting of quantity and casting.
Certainly have to descend after lifting mechanism I 3 rises and recover action, also have to rise after lifting mechanism I I 6 descends and recover action, described elevating mechanism, gear, pallet charging crane, pallet push machine, the pallet machine of pulling out is conventional commercially available equipment.
For further specifying the present invention, below be concrete operation embodiment: energy-saving roasting method for investment casting shuttering of the present invention is particularly useful for cast temperature at 1500 ℃, specific heat capacity is 0.837 small casting steel, below to cast temperature at 1500 ℃, specific heat capacity is that 0.837 small casting steel describes for embodiment.The present invention need pass through initiating task, just can enter normal production operation.
Initiating task:
When 1, initiating task begins, be room temperature inside and outside the heat-exchanging furnace 1, capacity is that 400 kilowatts stand-by power supply begins full power operation, the room temperature formwork of to be dried and roasting, push the upper strata that machine I 4 constantly enters heat-exchanging furnace 1 by lifting mechanism I 3 and pallet, until piling.According to calculating, stand-by power supply is length that 3.75 meters heat-exchanging furnaces, 1 bringing-up section furnace temperature is elevated to 980 ℃, and this section formwork and pallet 2 and upper strata roller-way 1.1 be heated to 900 ℃, the time that (when integrated heat efficiency is 50%) needs is: 3.75 * 7 * 0.2 * 200 * 0.67 * (980-20) * 0.5+3.75 * 250 * 585.05+3.75 * 75 * 2 * 0.703 * (900-20)/400 * 3600 * 0.5=1.72 hour.Then, formwork possesses the condition of casting.
When 2, returning the lower floor roller-way 1.2 of heat-exchanging furnace 1 after first batch of formwork is through casting, stove increases new thermal source, thereby has improved the speed of formwork roasting, and the time that makes the 2nd batch of formwork possess the casting condition will be shorter than 1.72 hours.Meanwhile, the input power of stand-by power supply is with corresponding automatic reduction.After the casting of the 4th batch of formwork process and returning lower floor's roller-way 1.2 of heat-exchanging furnace 1, lower floor's roller-way 1.2 has been piled the formwork after the casting, and heat exchange is mainly carried out between the levels formwork.Criticize casting back formwork through 1-2 again and enter lower floor's roller-way 1.2, stand-by power supply cuts off the power supply automatically, and heat-exchanging furnace 1 enters normal operation, estimates initiating task 6.68-8 consuming time hour.For fear of repetition, the concrete operation process of production line not to be narrated in the initiating task, these will be narrated in following normal operation.
Normal operation:
(1), when entering the normal operation program, the upper strata roller-way 1.1 of heat-exchanging furnace 1 is piled to be dried and formwork roasting, temperature is incremented to 900 ℃ in exit from 20 ℃ of import departments; Lower floor's roller-way 1.2 is piled the formwork after the casting, and temperature is decremented to 190 ℃ in exit from 1248 ℃ of import departments; Stand-by power supply is in stand-by state, and whole production line waits tapping casting instruction and starts.
(2), after Reform of Melting Section is sent the casting signal in advance, feed end at the formwork for the treatment of roasting, wait at a dish on lifting mechanism I 3 upper stratas and treat that the formwork of roasting will be together with pallet 2, pushed machine I 4 by pallet and advance heat-exchanging furnace 1, meanwhile at the discharge end of the formwork for the treatment of roasting, the formwork of another dish roasting to 900 ℃ is pushed out and pulls out machine I 5 by pallet from the upper strata roller-way 1.1 of heat-exchanging furnace 1 and is positioned at the lifting mechanism I I 6 that is in the rise state.Before this, pallet charging crane 7 is waited for above this position, after pallet 2 puts in place, pallet charging crane 7 grapples rise, pallet 2 hung roller-way and advance to the charging back-up sand station top of gear 10, and in the standard sandbox that it is discharged at, pallet charging crane 7 rises and waits up then.
(3), after formwork and pallet 2 enter sandbox 10.1, carry out back-up sand, meanwhile, the three-dimensional plain bumper 13 that is located at sandbox 10.1 bottoms is with heap sand jolt ramming by heap sand dispenser 12.
(4), after heap sand jolt ramming, gear 10 will run to the casting station to it, be cast by electronic casting ladle 11.
(5), after casting finishes, gear 10 will run to the knockout station to it automatically, then, by the time after foundry goods is cooled to predetermined temperature, the sand valve of putting of sandbox 10.1 bottoms is opened automatically, under the effect of three-dimensional plain bumper 13, the heap sand in the sandbox carries out knockout by pallet 2, and heap sand needs to utilize after treatment again behind the knockout.
(6), after knockout finishes, gear 10 will be got back to charging back-up sand station to its operation automatically.
(7), the formwork of pallet charging crane 7 after will casting be together with pallet 2, from sandbox 10.1, sling and transport and get back to the lifting mechanism I I 6 that is in the rise state; Lifting mechanism I I 6 drops to lower floor's roller-way 1.2 of heat-exchanging furnace 1, pushes at pallet under the effect of machine II 9, and the formwork after the casting is pushed in lower floor's roller-way 1.2 of heat-exchanging furnace 1 together with pallet 2; Meanwhile, a dish is pushed out heat-exchanging furnace 1 through cooling back formwork after the heat exchange, pulls out the lifting mechanism I 3 that location under the effect of machine II 8 has been in the decline state at pallet; The formwork of band foundry goods is removed and is sent to next procedure; Pallet 2 is risen to the upper strata roller-way 1.1 of heat-exchanging furnace 1 by elevating mechanism 3 after loading onto new formwork; The cycle operation of waiting for a new round begins.
(8). in the process of normal operation, unavoidably because of some undesired situation appears in incident, these can adopt initiating task part means to solve.
The Production Line ability
(1), the Production Line ability, be limited by the longest station consuming time.Wherein the formwork after the casting need stay for some time in sandbox according to the foundry goods different wall, could knockout.Therefore, the knockout station needed 6-15 minute just can finish a dish formwork operation, thereby made the Production Line ability per hour be restricted to 4-10 pallet, or 1000-2500 kilogram molten steel.
(2), per hour cast 4 dishes during formworks, the heat exchanger time that heat-exchanging furnace can carry out is 3.75 hours, can satisfy dry and roasting requirement fully when production line.When production line was per hour cast 10 dish formworks, the heat exchanger time that heat-exchanging furnace can carry out had only 1.5 hours, may satisfy dry and roasting requirement inadequately.Therefore, need suitably lengthening stove or as shown in Figure 1, adopt 2 heat-exchanging furnaces.
Thermal balance
When the casting amount reach 1,000 kilogram/time, the thermal balance between casting back formwork and to be dried and the roasting formwork is as follows:
The formwork accumulation of heat of casting back :+1375.38 * 1,000=1,375,380 kilojoules (100%)
Drying and roasting formwork :-585.05 * 1000=-585,050 kilojoule (42.5%)
The heat-exchanging furnace heat loss: adopting aluminosilicate refractory fiber is the insulation material of these two kinds of formwork heat-exchanging furnaces.If the thickness of body of heater is 0.2 meter, length is 15 meters, and when external surface area was 90 square metres, the heat loss of stove was :-550 * 0.2/0.2 * 90=49, is equivalent to-178,232 kilojoules (13%) by 500 watts.(550 is in the heat-exchanging furnace in the formula, outer MTD ° C; 0.2 be body of heater thickness rice; 0.2 be the thermal conductivity factor of insulation material, watt/temperature difference ℃ * square metre; 90 is external surface area square metre), pallet heat loss: when pallet and formwork move, variations in temperature is arranged in stove, and do not have heat loss.But, after heat exchange finishes, be positioned at the pallet on upper strata and formwork after coming out of the stove, need wait for outside stove about 2 minutes that estimating temperature will drop to 650 ℃ from 900 ℃ before the casting; Lower tray and foundry goods need unload foundry goods and stop about 3 minutes with adorning new formwork outside stove, estimating temperature will drop to 150 ℃ from 200 ℃; The outer waiting tray heat loss of secondary stove is-0.703 * (900-650+200-150) * 75/250 * 1000=-63,300 kilojoules (4.6%)
Before the casting, formwork cooling heat loss-1.049 * 0.5 * (900-650) * 1,000=-131,125 kilojoules (9.5%) casting back formwork and foundry goods, the heat loss of before entering heat-exchanging furnace, lowering the temperature (establishing cooling is 150 ℃)-(1.049 * 0.5+0.703) * 150 * 1000=-184,125 kilojoules (13.4%)
The residual heat of casting back formwork and foundry goods: 1,375,380-585,050-178,232-63,300-131,124-184,125=-233,549 kilojoules (17%)
The mean temperature that heat exchange finishes formwork and foundry goods is: 233,549/1000/ (1.049 * 0.5+0.703)=190.26 ℃.Can directly be sent to fettling shop and carry out prune job.
When reaching above-mentioned thermal balance, casting back formwork amount of stored heat can satisfy new formwork drying and roasting required, heat-exchanging furnace can not use standby electrical heating.When the casting amount greater than 1000 kilograms/time, heat is more abundant.
By ordinary circumstance, the weight of formwork is 50% of molten steel, and its water content is 10%, this part water drying, gasification and the heat of its roasting to 900 ℃ needs is: 0.50 * 0.1 * 2260+1.049 * 900 * 0.5=585.05 kilojoule/kilogram molten steel.(annotate: 2260 is the heat of vaporization of water in the formula; 1.049 be the mean specific heat of formwork).When liquid steel temperature is 1560 ℃, the heat that casting back formwork keeps is: and 1510 * 0.703+50 * 0.837+272=1375.38 kilojoule/kilogram molten steel (notes: 0.703 and 0.837 specific heat capacity that is respectively steel and molten steel in the formula, 272 is the latent heat of fusion of steel).The ratio of the heat that it and formwork roasting need is 100: 42.5.Employing is worked continuously, and considers the insulation measure in transportation facility, makes the preceding temperature of formwork casting be reduced to 650 ℃ from 900 ℃.Then the mean temperature of casting back formwork and foundry goods is: (1.049 * 0.5+0.703)=1716.3/1.227=1398.78 ℃ of 1375.38+1.049 * 650 * 0.5/.Take similar measure, the formwork after the control casting enters the preceding bulk temperature of heat-exchanging furnace and reduces to 150 ℃, remains on about 1248 ℃, makes it have enough thermogrades to come dry and roasting formwork.During mould shell temperature, casting back mould shell temperature is also with corresponding reduction before technological requirement further reduces casting.Above data and theory analysis have further proved remarkable advantage of the present invention and beneficial effect.
Above embodiment only is a preferable embodiment of the present invention, and the present invention also allows other and changes, and the formwork quantity after the formwork quantity for the treatment of roasting of placing simultaneously in the heat-exchanging furnace 1 and the casting also can be unequal as described.Described upper strata roller-way 1.1 be positioned at lower floor's roller-way 1.2 below, left-right and front-back partially a bit can be realized; All in the scope of claim 1, all in the protection domain of claim of the present invention.
Claims (3)
1, a kind of energy-saving roasting method for investment casting shuttering is characterized in that, may further comprise the steps:
1., the upper strata roller-way (1.1) in heat-exchanging furnace (1) piles the pallet (2) that the formwork for the treatment of roasting is housed, and piles the pallet (2) of the formwork after casting is housed at lower floor's roller-way (1.2) of heat-exchanging furnace (1);
The formwork that roasting is treated in the accumulation of heat of the formwork after 2., utilization is cast carries out roasting;
3., the pallet (2) that the formwork for the treatment of roasting will be housed is pushed on the upper strata roller-way (1.2) in the heat-exchanging furnace (1) by batch pushing machine I (4) by pallet from feed end, the pallet (2) that the formwork after the roasting is housed that simultaneously quantity is equated is released from discharge end, and pulls out machine I (5) by pallet and move on the lifting mechanism I I (6);
4., the pallet (2) that the formwork after the roasting will be housed hangs on the gear (10) from lifting mechanism I I (6) by pallet charging crane (7), then on gear (10), finish back-up sand, casting, knockout, the formwork after the casting is hung from gear (10) by pallet charging crane (7) get back on the lifting mechanism I I (6);
5., the pallet (2) that the formwork after the casting will be housed drops to the height of the feed end of the formwork after the casting from the height of the discharge end of the formwork for the treatment of roasting of heat-exchanging furnace (1) by lifting mechanism I I (6);
6., the pallet (2) that the formwork after the casting will be housed is pushed on lower floor's roller-way (1.2) in the heat-exchanging furnace (1) by batch pushing machine II (9) by pallet from feed end, the pallet that cooled formwork is housed (2) that quantity is equated is released from discharge end simultaneously, and pulls out machine II (8) by pallet and move on the lifting mechanism I (3);
7., the pallet (2) that the formwork for the treatment of roasting will be housed rises to the height of the feed end of the formwork for the treatment of roasting from the height of the discharge end of the cooled formwork of heat-exchanging furnace (1) by lifting mechanism I (3).
2, energy-saving drying and roasting method for investment casting shuttering according to claim 1 is characterized in that: with described upper strata roller-way (1.1) be located at lower floor's roller-way (1.2) directly over.
3, energy-saving drying and roasting method for investment casting shuttering according to claim 1 is characterized in that: the formwork after placing the equal formwork for the treatment of roasting of quantity and cast in heat-exchanging furnace (1).
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| CN200910101260A CN101618431A (en) | 2009-07-23 | 2009-07-23 | Energy-saving roasting method for investment casting shuttering |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102189219A (en) * | 2009-08-29 | 2011-09-21 | 应万才 | Energy-saving method for roasting investment casting mould shell |
| CN102794401A (en) * | 2011-05-25 | 2012-11-28 | 宁波吉威熔模铸造有限公司 | Precision investment casting production device and process |
| CN112238217A (en) * | 2019-07-16 | 2021-01-19 | 吴政宽 | Molten soup forging method of thin shell mold |
-
2009
- 2009-07-23 CN CN200910101260A patent/CN101618431A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102189219A (en) * | 2009-08-29 | 2011-09-21 | 应万才 | Energy-saving method for roasting investment casting mould shell |
| CN102794401A (en) * | 2011-05-25 | 2012-11-28 | 宁波吉威熔模铸造有限公司 | Precision investment casting production device and process |
| CN102794401B (en) * | 2011-05-25 | 2014-09-24 | 宁波吉威熔模铸造有限公司 | Precision investment casting production device and process |
| CN112238217A (en) * | 2019-07-16 | 2021-01-19 | 吴政宽 | Molten soup forging method of thin shell mold |
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