CN115383873A - Prefabricated product forming device and using method - Google Patents
Prefabricated product forming device and using method Download PDFInfo
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- CN115383873A CN115383873A CN202210965045.7A CN202210965045A CN115383873A CN 115383873 A CN115383873 A CN 115383873A CN 202210965045 A CN202210965045 A CN 202210965045A CN 115383873 A CN115383873 A CN 115383873A
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- 238000000034 method Methods 0.000 title claims abstract description 29
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 37
- 239000002893 slag Substances 0.000 claims abstract description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 25
- 238000000465 moulding Methods 0.000 claims description 25
- 239000004575 stone Substances 0.000 claims description 21
- 239000004576 sand Substances 0.000 claims description 18
- 239000003795 chemical substances by application Substances 0.000 claims description 17
- 238000007596 consolidation process Methods 0.000 claims description 14
- 239000003921 oil Substances 0.000 claims description 11
- 229910003460 diamond Inorganic materials 0.000 claims description 3
- 239000010432 diamond Substances 0.000 claims description 3
- 239000011230 binding agent Substances 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 18
- 230000008569 process Effects 0.000 abstract description 9
- 238000002360 preparation method Methods 0.000 abstract description 4
- 238000012360 testing method Methods 0.000 description 15
- 230000000694 effects Effects 0.000 description 7
- 238000012887 quadratic function Methods 0.000 description 6
- 230000008859 change Effects 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 2
- 239000002440 industrial waste Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- -1 tailings Substances 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
- B28B3/02—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form
- B28B3/022—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form combined with vibrating or jolting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/08—Producing shaped prefabricated articles from the material by vibrating or jolting
- B28B1/087—Producing shaped prefabricated articles from the material by vibrating or jolting by means acting on the mould ; Fixation thereof to the mould
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B17/00—Details of, or accessories for, apparatus for shaping the material; Auxiliary measures taken in connection with such shaping
- B28B17/0063—Control arrangements
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
Abstract
The invention discloses a prefabricated product forming device and a using method thereof. A prefabricated product forming device comprises a vibration motor capable of controlling vibration time and a hydraulic oil cylinder capable of controlling pressure intensity, wherein the hydraulic oil cylinder can control the prefabricated product forming device to work so as to prepare prefabricated products. When the device is used, the vibration time of the vibration motor and the pressure intensity of the hydraulic oil cylinder can be set and observed through the console, and the influence of the vibration time of the vibration motor and the pressure intensity of the hydraulic oil cylinder on the average strength of the manufactured prefabricated product is observed and recorded. During the material mixing process before the preparation of the prefabricated product, the ratio k of the water consumption to the total mass and the ratio m of the slag mass to the total mass can be adjusted according to the actual condition, and during the preparation of the prefabricated product, the vibration time t of the vibration motor and the pressure p applied to the prefabricated product can be adjusted according to the actual condition, so that the prefabricated product with specified strength meeting the standard can be manufactured more quickly.
Description
Technical Field
The invention relates to a device for researching a prefabricated product molding process and a using method thereof, in particular to a prefabricated product molding device and a using method thereof.
Background
China generates a large amount of industrial waste such as slag, fly ash, tailings, coal gangue, construction waste and the like every year. The conversion of these industrial wastes into prefabricated products is a common direction of application. In the forming process of the high-strength prefabricated product, forming pressure, vibration, water consumption, 5-10 mass ratio of broken stone to slag and the like are important influencing factors. In order to determine the optimum range of these influencing factors, studies on these influencing factors are required, but there is a lack of a room preform molding apparatus for preform process studies. The value of the important factor in the forming process can not be shown generally to current small-size prefabricated product forming device, is difficult to let the tester accurately hold the optimum scope of each influence factor to can't produce the prefab that accords with the quality standard in short time, simultaneously, after the continuous experiment, just can produce the high strength prefab that accords with the quality standard, average strength is greater than 20MPa, not only wastes time and energy, still wastes the material.
Disclosure of Invention
In order to solve the technical problems that the forming device of the small-sized prefabricated product in the prior art wastes time, labor and materials when manufacturing prefabricated products with different strengths meeting quality standards, the invention provides a novel forming device of the prefabricated product, which has the following specific technical scheme:
a prefabricated product forming device comprises a base, a guide upright post, an oil cylinder motor, a hydraulic oil cylinder, an upper die frame, a lower die frame and a fixing rod, wherein the guide upright post is vertically arranged, one end of the guide upright post is fixedly connected to the base, the other end of the guide upright post is detachably connected with the upper die frame, the oil cylinder motor and the hydraulic oil cylinder are arranged on the base, the oil cylinder motor can control the hydraulic oil cylinder to vertically move, and the movable end of the hydraulic oil cylinder is in contact with the lower die frame and can drive the lower die frame to vertically move up and down;
the lower die frame comprises a bottom plate, a connecting column and a top plate, the bottom plate is in contact with the hydraulic oil cylinder, one end of the connecting column is fixed on the bottom plate, the other end of the connecting column is fixedly connected with the top plate, and the top plate is located in the upper die frame and is tightly attached to the upper die frame;
the inner part of the upper die frame is divided into a plurality of compartments, each compartment is tightly attached to one top plate, a cover plate capable of opening and closing the upper die frame is further arranged on the upper die frame, and a clamping block is further arranged on the cover plate;
the base is further provided with a fixed rod, the fixed rod is rotatably connected to the base, a clamping groove is formed in the fixed rod, and when the cover plate covers the upper die frame, the fixed rod is rotated to enable the clamping block to enter the clamping groove;
the number of the guide upright columns is four, the four guide upright columns are respectively positioned at four vertex angles of the same rectangle, two opposite edges of the rectangle far away from the clamping block are respectively provided with a vibration motor, and a control console is also arranged above the vibration motors at one side far away from the cover plate and is fixedly connected with the guide upright columns;
the control cabinet is provided with a display panel and a control button, a pressure sensor is movably arranged on the control cabinet and can be placed in a compartment of the upper mold frame, the control button can control the vibration time of the vibration motor and the pressure intensity of the hydraulic oil cylinder, and the display panel can display the vibration time of the vibration motor and the pressure intensity applied to the prefabricated product.
Preferably, the two opposite sides of the upper die frame, which are not connected with the cover plate, are symmetrically provided with side plates higher than the upper surface of the upper die frame, and one side of each side plate, which is far away from the upper die frame, is provided with a first through hole.
Preferably, the top plate is rectangular.
Preferably, the top plate is diamond-shaped.
Preferably, a supporting plate is further arranged between the bottom plate of the lower die frame and the hydraulic oil cylinder, the supporting plate is horizontally arranged and fixedly connected to the guide upright post, and a second through hole for the hydraulic oil cylinder to pass through is formed in the middle of the supporting plate.
The using method of the prefabricated product forming device comprises the steps that the water consumption accounts for 12% of the total mass, the mass of the yellow river sand accounts for 38% of the total mass, the mass of the silt consolidation agent accounts for 20% of the total mass, the mass of the 5-10 broken stone accounts for 20% of the total mass, the mass of the slag accounts for 10% of the total mass, the pressure applied to the prefabricated product is 0.2MPa, and when the vibration time t of the vibration motor is more than or equal to 0 and less than or equal to 30s, the average strength of the manufactured prefabricated product is-0.006 t 2 +0.27t+23.2MPa。
The using method of the prefabricated product forming device comprises the steps that when the water consumption accounts for 12% of the total mass, the mass of the yellow river sand accounts for 38% of the total mass, the mass of the silt consolidation agent accounts for 20% of the total mass, the mass of the 5-10 broken stone accounts for 20% of the total mass, the mass of the slag accounts for 10% of the total mass, the vibration time of the vibration motor is 15s, and when the pressure intensity p exerted on the prefabricated product meets 0.1When the pressure is more than or equal to MPa and less than or equal to 0.5MPa, the average strength of the prepared prefabricated product is-51.25 p 2 +44p+18.0125MPa。
A use method of the prefabricated product forming device comprises the following steps that in the mass ratio of the yellow river sand to the silt consolidation agent to the crushed stone to the slag of 19 to 10, the vibration time of a vibration motor is 15s, the pressure applied to a prefabricated product is 0.2MPa, and when the ratio k of water consumption to the total mass is equal to or more than 0.11 and equal to or less than 0.13, the average strength of a manufactured prefabricated product is-30500 k 2 + 7285k-409.1MPa。
When the water consumption accounts for 12 percent of the total mass, the mass of the yellow river sand accounts for 38 percent of the total mass, the mass of the silt consolidation agent accounts for 20 percent of the total mass, the pressure applied to the prefabricated product is 0.2MPa, the vibration time of a vibration motor is 15s, the mass of crushed stone accounts for 30 to m of the total mass, and the ratio m of the mass of the slag to the total mass is more than or equal to 0 and less than or equal to 0.2, the average strength of the prepared prefabricated product is-500 m 2 +91m+21.8MPa。
When the mass of the yellow river sand, the mass of the silt consolidation agent, the mass of 5-10 broken stones and the mass ratio of the slag are 19
The invention can achieve the following technical effects: when the prefabricated product is prepared, the digital display of the influencing factors in the forming process is realized, the vibration time of the vibration motor and the pressure applied to the prefabricated product can be set and observed through the control console, the influence of each parameter on the average strength of the prepared prefabricated product is observed and recorded, so that a tester can accurately master the optimal range of each influencing factor, and the precise master of the prefabricated product preparation process is facilitated. Meanwhile, in the material mixing process before the preparation of the product, the ratio k of the water consumption to the total mass and the ratio m of the slag mass to the total mass can be adjusted according to the actual condition, and the vibration time t of the vibration motor and the pressure p applied to the prepared product can be adjusted according to the actual condition when the product is prepared, so that the prepared product with specified strength meeting the standard can be prepared more quickly, time and labor are saved, and the material is saved.
Drawings
FIG. 1 is a schematic view of a preform product molding apparatus of the present invention;
FIG. 2 is a front view of a preform molding apparatus of the present invention;
FIG. 3 is a top view of a preform product forming apparatus of the present invention;
FIG. 4 is a graph showing the average intensity of preforms manufactured while varying only the vibration time of the vibration motor;
FIG. 5 is a graph of the average strength of preforms produced by varying the hydraulic ram pressure alone for hours;
FIG. 6 is a graph showing the average strength of preforms produced by varying only the ratio k of the amount of water to the total mass;
FIG. 7 is a graph of the average strength of the preforms produced with only the ratio m of the mass of the slag to the total mass being varied.
In the figure: 1-a base; 2-a guide upright post; 3-a console; 4-a vibration motor; 5-oil cylinder motor; 6-a hydraulic oil cylinder; 7-mounting a mold frame; 71-a cover plate; 711-a fixture block; 72-side plate; 8-lower mould frame; 81-a bottom plate; 82-connecting column; 83-a top plate; 9-fixing the rod; 91-card slot.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A prefabricated product forming device comprises a base 1, a guide upright post 2, an oil cylinder motor 5, a hydraulic oil cylinder 6, an upper die frame 7, a lower die frame 8 and a fixing rod 9, wherein the guide upright post 2 is vertically arranged, one end of the guide upright post is fixedly connected to the base 1, the other end of the guide upright post 2 is detachably connected with the upper die frame 8, the oil cylinder motor 5 and the hydraulic oil cylinder 6 are arranged on the base 1, the oil cylinder motor 5 can control the hydraulic oil cylinder 6 to vertically move, and the movable end of the hydraulic oil cylinder 6 is in contact with the lower die frame 8 and can drive the lower die frame 8 to vertically move up and down;
the lower die frame 8 comprises a bottom plate 81, a connecting column 82 and a top plate 83, the bottom plate 81 is in contact with the hydraulic oil cylinder 6, one end of the connecting column 82 is fixed on the bottom plate 81, the other end of the connecting column 82 is fixedly connected with the top plate 83, and the top plate 83 is located in the upper die frame 7 and is tightly attached to the upper die frame 7;
the interior of the upper mold frame 7 is divided into a plurality of compartments, each compartment is tightly attached to one top plate 83, a cover plate 71 capable of opening and closing the upper mold frame 7 is further arranged on the upper mold frame 7, and a clamping block 711 is further arranged on the cover plate 71;
the base 1 is also provided with a fixed rod 9, the fixed rod 9 is rotatably connected to the base 1, the fixed rod 9 is provided with a clamping groove 91, and when the cover plate 71 covers the upper mold frame 7, the fixed rod 9 is rotated to enable the clamping block 711 to enter the clamping groove 91;
the number of the guide upright columns 2 is four, the four guide upright columns 2 are respectively positioned at four vertex angles of the same rectangle, two opposite edges of the rectangle far away from the fixture block 711 are respectively provided with a vibration motor 4, a control console 3 is also arranged above the vibration motor 4 at one side far away from the cover plate 71, and the control console 3 is fixedly connected with the guide upright columns 2;
be equipped with display panel and control button on the control cabinet 3, the activity is equipped with pressure sensor still on the control cabinet 3, pressure sensor can place in a compartment of last framed 7, and control button can control vibrating motor 4's the vibration time and hydraulic cylinder 6's pressure size, and display panel can show vibrating motor 4's vibration time and exert the pressure on prefabricated product. Preferably, a timer may be connected in series with the oscillation motor, so that the timer is controlled by the control button, and thus the vibration time of the oscillation motor is controlled. When the pressure of the hydraulic oil cylinder 6 is increased, the pressure displayed by the pressure sensor is also increased, so that the pressure displayed by the pressure sensor can be controlled by controlling the pressure of the hydraulic oil cylinder.
When the prefabricated product is manufactured, the vibration time of the vibration motor 4 and the pressure intensity of the hydraulic oil cylinder 6 can be set and observed through the control console 3, and the influence of each parameter on the average strength of the manufactured prefabricated product can be observed and recorded. When the device is used, the mixed materials are poured into the compartment of the upper die frame 7, the cover plate 71 is covered, the fixing rod 9 is rotated to enable the clamping block 711 to enter the clamping groove 91 and be clamped, the pressure intensity of the hydraulic oil cylinder 6 and the vibration time of the vibration motor 4 are set, the telescopic end of the hydraulic oil cylinder 6 is controlled to move upwards by the oil cylinder motor 5, the lower die frame 8 is made to move upwards, meanwhile, the vibration motor 4 vibrates, the materials are made to form a prefabricated product under the extrusion of the top plate 83, the upper die frame 7 and the cover plate 71, and then the cover plate 71 is opened to take out the prefabricated product.
In order to manufacture preforms of different shapes, it is preferable that the opposite sides of the upper mold frame 7, to which the cover plate 71 is not connected, are symmetrically provided with side plates 72 higher than the upper surface of the upper mold frame 7, and a side of the side plate 72, which is far away from the upper mold frame 7, is provided with a first through hole.
In use, the detachable connection part of the upper mold frame 7 and the guide upright 2 is only required to be opened, and preferably, the upper mold frame 7 and the guide upright 2 are connected together through bolts. And then, the steel bar penetrates through the two first through holes simultaneously, the upper mold frame 7 is taken down, the lower mold frame 8 is taken down, and the other group of upper mold frame 7 and lower mold frame 8 which are matched with each other are replaced. For example, the top plate 83 is rectangular, and in this case, the preform is rectangular; the top plate 83 is diamond shaped, and the preform is now diamond shaped.
In order to avoid that the lower die frame 8 is always contacted with the hydraulic oil cylinder 6 and pressure is applied to the hydraulic oil cylinder 6, preferably, a support plate is further arranged between the bottom plate 81 of the lower die frame 8 and the hydraulic oil cylinder 6, the support plate is horizontally arranged and fixedly connected to the guide upright post 2, and a second through hole for the hydraulic oil cylinder 6 to pass through is formed in the middle of the support plate.
When the prefabricated product forming device is used, the lower die frame 8 is positioned on the supporting plate, when the prefabricated product forming device does not work, the lower die frame 8 is not in contact with the hydraulic oil cylinder 6, so that the hydraulic oil cylinder 6 is prevented from being pressed by the lower die frame 8 all the time, and the upper die frame 7 and the lower die frame 8 are not required to be taken down after the prefabricated product forming device is used each time in order to avoid the above situation.
When the preform was produced by using the above preform product molding apparatus, the amounts of the respective materials for molding were as shown in Table 1.
TABLE 1 amounts of materials used for molding
The amounts of the materials used for molding are shown in Table 1, and the results of the molding tests under different vibration times are shown in Table 2. The test results show that the average strength of the formed preform increases as the vibration time of the vibration motor increases when the pressure applied to the preform is constant, but the average strength of the formed preform increases more slowly after the vibration time reaches 15 seconds.
TABLE 2 results of the molding test at different vibration times
As can be seen from the actual value curve in fig. 4, the influence of the vibration time on the average intensity of the preform may be the portion of the log function or quadratic function to the left of the symmetry axis.
Modeling by adopting t =5s, t =10s and t =15s, firstly, modeling by adopting a log function, wherein the selected function model is log a (At + 1) + B, where a, a and B are all constants, solved for a =0.75, a = -23/615, B =23.68, when time t =30s, a negative number inside the log function occurs, and the model is used to calculateIt was found that the rate of increase of the average strength of the preform gradually increased with increasing t, which does not coincide with the gradual decrease of the rate of increase of the average strength of the preform with increasing t, as analyzed from the actual data in table 2, and therefore, excluding this model, the modeling was performed using a quadratic function.
Let the function model be Ct 2 + Dt + E, C, D and E are constants, and the data of numbers 3, 5 and 7 in table 2 are substituted into the above equation to obtain: f (t) = -0.006t 2 +0.27t +23.2MPa. The curve of the functional model is shown as the theoretical value in fig. 4, and therefore, the coincidence between the curves of the theoretical value and the actual value is good, and the effect of the model is good.
The experimental errors when only the vibration time was changed are shown in table 3, and the errors were counted as (theoretical value of average intensity-actual value of average intensity)/actual value of average intensity.
TABLE 3 Change of vibration only time of day test error
When the vibration time t is more than 30s, the error is larger, but the influence of the vibration time prolonged to the average strength of the manufactured prefabricated product can be ignored, therefore, the invention also discloses a using method of the prefabricated product forming device, when the water consumption accounts for 12 percent of the total mass, the mass of the yellow river sand accounts for 38 percent of the total mass, the mass of the silt consolidation agent accounts for 20 percent of the total mass, the mass of the crushed stone accounts for 20 percent of the total mass, the mass of the slag accounts for 10 percent of the total mass, and the pressure is 0.2MPa, when the vibration time t of the vibration motor is more than or equal to 0 and less than or equal to 30s, the manufactured prefabricated product has the average strength of-0.006 t 2 +0.27t+ 23.2MPa。
The amounts of the materials used for molding are shown in Table 1, and the results of the molding tests are shown in Table 4 when the hydraulic cylinders are operated under different pressures.
TABLE 4 Molding test results under different pressures
Wherein when the pressure applied to the preform product is 0.05MPa, the average strength of the resulting preform is less than 20MPa, which does not meet the quality standards, and when the pressure is increased to 0.4MPa, the rate of increase in the average strength of the resulting preform is small.
As can be seen from the actual value curve in fig. 5, the effect of the magnitude of the pressure exerted on the preform on the average strength of the preform may be the portion of the log function or quadratic function to the left of the axis of symmetry. However, as can be seen from the above, the log function is excluded, and therefore, the modeling is performed in the form of a quadratic function.
Let the function model be Fp 2 + Gp + H, where F, G and H are constants, solved by substituting the data of table 4 numbers 2, 6 and 10 into the function model: f (p) = -51.25p 2 +44p +18.0125MPa. The curve of the functional model is shown as the theoretical value in fig. 5, and therefore, the coincidence between the curves of the theoretical value and the actual value is good, and the effect of the model is good.
The experimental error of varying only the magnitude of the pressure exerted on the preform is shown in table 5, and the error is counted as (theoretical value of average intensity-actual value of average intensity)/actual value of average intensity.
Table 5 experimental error of changing only the magnitude of pressure
As can be seen from Table 5 and FIG. 5The invention also discloses a using method of the prefabricated product forming device, wherein the water consumption accounts for 12 percent of the total mass, the mass of the yellow river sand accounts for 38 percent of the total mass, the mass of the silt consolidating agent accounts for 20 percent of the total mass, the mass of 5-10 broken stones accounts for 20 percent of the total mass, the mass of the slag accounts for 10 percent of the total mass, the vibration time of the vibrating motor is 15s, and when the pressure intensity p applied to the prefabricated product is more than or equal to 0.1MPa and less than or equal to 0.5MPa, the average strength of the manufactured prefabricated product is-51.25 p 2 +44p+18.0125MPa。
When the pressure applied to the prefabricated product is 0.2MPa and the vibration time of the vibration motor is 15s, the molding water consumption is changed without changing the consumption of other materials, and the relation between the ratio k of the water consumption to the total mass and the average strength of the manufactured prefabricated product is researched.
The amounts of other materials used are shown in table 6.
TABLE 6 amounts of other materials
| Yellow river sand (kg) | Silt consolidation agent (kg) | 5-10 macadam (kg) | Slag (kg) |
| 798 | 420 | 420 | 210 |
The amounts of the materials used for molding are shown in Table 6, and the results of the molding tests with different amounts of water are shown in Table 7.
TABLE 7 Molding test results with different water consumption
The ratio k =0.1 of the water consumption to the total mass does not meet the quality requirement, so the data should be discarded.
From the actual value curve in fig. 6 and the data in table 7, it can be seen that the influence of the ratio k of the amount of water to the total mass on the average strength of the preform should be a quadratic function.
Let the function model be f (k) = Ik 2 + Jk + K, where I, J and K are constants, and the data of numbers 3, 5 and 7 in table 7 are substituted into the above formula to solve: f (k) = -30500k 2 +7285k-409.1MPa. The curve of the function model is shown as the theoretical value in fig. 6, so that the curve coincidence between the theoretical value and the actual value is good, and the effect of the model is good.
The experimental error of changing only the ratio k of the amount of water to the total mass is shown in table 8, and the error is counted as (theoretical value of average intensity-actual value of average intensity)/actual value of average intensity.
TABLE 8 Change of Water consumption only test error of
At this time, when the ratio k =0.105 of the amount of water used to the total mass, the error is large and the theoretical value of 19.6MPa does not meet the quality standard, and therefore, this data is discarded. To sum up, the application also discloses a using method of the prefabricated product forming device, and the quality and the sediment of the sand of the yellow river are fixedThe mass ratio of the caking agent to the crushed stone to the slag is 19-10, the vibration time of the vibration motor is 15s, the pressure applied to the prefabricated product is 0.2MPa, and when the ratio k of the water consumption to the total mass is equal to or more than 0.11 and equal to or less than 0.13, the average strength of the prepared prefabricated product is-30500 k 2 +7285k-409.1 MPa。
When the pressure applied to the prefabricated product is 0.2MPa and the vibration time of the vibration motor is 15s, the using amounts of the slag and the 5-10 crushed stone are changed, but the total mass of the slag and the 5-10 crushed stone is not changed, and the using amount of other materials is not changed, so that the relation between the ratio m of the mass of the slag to the total mass and the average strength of the manufactured prefabricated product is researched.
The ratio of the amounts of the materials used for molding is shown in Table 9.
TABLE 9 ratio of the amounts of the materials used for molding
| Amount of water used | Yellow river sand | Silt consolidation agent | 5-10 macadam | Slag of |
| 12％ | 38％ | 20％ | 30％-m | m |
The results of the forming tests with different amounts of slag are shown in Table 10.
TABLE 10 results of forming experiments with different slag dosages
From the actual value curve in fig. 7 and the data in table 10, it can be seen that the influence of the mass of slag to total mass ratio m on the average strength of the preform should be a quadratic function.
Let the function model be f (m) = Lm 2 + Mm + N, where L, M and N are constants, and substituting the data of numbers 3, 5 and 7 in Table 10 into the above equation results in: f (m) = -500m 2 +91m +21.8 MPa. The curve of the functional model is shown as the theoretical value in fig. 7, and therefore, the coincidence between the curves of the theoretical value and the actual value is good, and the effect of the model is good.
The experimental errors, which only change the ratio m of the mass of the slag to the total mass and the amount of the crushed stones 5-10, but do not change the total mass of the slag and the crushed stones 5-10, are shown in table 11, and the errors are counted as (theoretical value of average intensity-actual value of average intensity)/actual value of average intensity.
TABLE 11 test error of changing only the slag quality
The invention also discloses a using method of the prefabricated product forming device, wherein the water consumption accounts for 12 percent of the total mass, the mass of the yellow river sand accounts for 38 percent of the total mass, the mass of the silt consolidation agent accounts for 20 percent of the total mass, the pressure applied to the prefabricated product is 0.2MPa, and the vibration motor vibratesThe interval is 15s, the mass of 5-10 broken stones accounts for 30-m of the total mass, when the ratio m of the mass of furnace slag to the total mass meets the condition that m is more than or equal to 0 and less than or equal to 0.2, the average strength of the prepared prefabricated product is-500 m 2 +91m+21.8MPa。
On the basis of the test, the invention can reasonably speculate that the application method of the prefabricated product forming device is provided, when the mass of the yellow river sand, the mass of the silt consolidation agent, the mass of 5-10 broken stones and the mass ratio of the slag is 19
To verify the correctness of the above guess, the present invention has performed three verification tests, and the test results are shown in table 12, wherein the error is counted by (theoretical value of average intensity-actual value of average intensity)/actual value of average intensity.
TABLE 12 verification test
Therefore, the invention actually discloses a using method of the prefabricated product forming device, when the mass ratio of the yellow river sand, the mass of the silt consolidation agent, the mass of 5-10 broken stones and the mass of the furnace slag is 19When the value k is equal to or greater than 0.11 and equal to or less than 0.13 and the ratio m of the mass of the slag to the total mass is equal to or greater than 0 and equal to or less than 0.2, the average strength of the prepared prefabricate is
And those not described in detail in this specification are well within the skill of the art.
It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A prefabricated product forming device comprises a base, a guide upright post, an oil cylinder motor, a hydraulic oil cylinder, an upper die frame, a lower die frame and a fixing rod, wherein the guide upright post is vertically arranged, one end of the guide upright post is fixedly connected to the base, the other end of the guide upright post is detachably connected with the upper die frame, the oil cylinder motor and the hydraulic oil cylinder are arranged on the base, the oil cylinder motor can control the hydraulic oil cylinder to vertically move, the movable end of the hydraulic oil cylinder is in contact with the lower die frame and can drive the lower die frame to vertically move, and the prefabricated product forming device is characterized in that,
the lower die frame comprises a bottom plate, a connecting column and a top plate, the bottom plate is in contact with the hydraulic oil cylinder, one end of the connecting column is fixed on the bottom plate, the other end of the connecting column is fixedly connected with the top plate, and the top plate is located in the upper die frame and is tightly attached to the upper die frame;
the inner part of the upper die frame is divided into a plurality of compartments, each compartment is tightly attached to one top plate, a cover plate capable of opening and closing the upper die frame is further arranged on the upper die frame, and a clamping block is further arranged on the cover plate;
the base is further provided with a fixed rod, the fixed rod is rotationally connected to the base, a clamping groove is formed in the fixed rod, and when the cover plate covers the upper die frame, the fixed rod is rotated to enable the clamping block to enter the clamping groove;
the number of the guide upright columns is four, the four guide upright columns are respectively positioned at four vertex angles of the same rectangle, two opposite edges of the rectangle far away from the fixture block are respectively provided with a vibration motor, one side of the rectangle far away from the cover plate is also provided with a control console above the vibration motor, and the control console is fixedly connected with the guide upright columns;
the pressure control device is characterized in that a display panel and a control button are arranged on the control console, a pressure sensor is movably arranged on the control console, the pressure sensor can be placed in a compartment of the upper die frame, the control button can control the vibration time of the vibration motor and the pressure of the hydraulic oil cylinder, and the display panel can display the vibration time of the vibration motor and the pressure applied to the prefabricated product.
2. A prefabricated product forming device according to claim 1, wherein the opposite sides of the upper mold frame, to which the cover plate is not connected, are symmetrically provided with side plates higher than the upper surface of the upper mold frame, and a side of the side plates, which is far away from the upper mold frame, is provided with first through holes.
3. A preform molding apparatus as claimed in claim 2, wherein said top plate is rectangular.
4. A preform molding apparatus as claimed in claim 2, wherein said top plate has a diamond shape.
5. A prefabricated product forming device as claimed in any one of claims 3 or 4, wherein a support plate is further arranged between the bottom plate of the lower die frame and the hydraulic oil cylinder, the support plate is horizontally arranged and fixedly connected to the guide upright posts, and a second through hole for the hydraulic oil cylinder to pass through is formed in the middle of the support plate.
6. The use method of the preformed product molding apparatus according to claim 1, wherein when the water consumption is 12% of the total mass, the yellow river sand is 38% of the total mass, the silt consolidation agent is 20% of the total mass, the crushed stone is 5-10% of the total mass, the slag is 10% of the total mass, the pressure applied to the preformed product is 0.2MPa, and when the vibration time t of the vibration motor is 0. Ltoreq. T.ltoreq.30 s, the average strength of the preformed product is-0.006 t 2 +0.27t+23.2MPa。
7. The method of using a preformed product molding apparatus as claimed in claim 1, wherein when the amount of water used is 12% by mass, the amount of yellow river sand is 38% by mass, the amount of silt consolidating agent is 20% by mass, the amount of 5-10 crushed stone is 20% by mass, the amount of slag is 10% by mass, the vibration time of the vibrating motor is 15s, and when the pressure p applied to the preformed product is equal to or greater than 0.1MPa and equal to or less than 0.5MPa, the average strength of the preformed product is-51.25 p 2 +44p+18.0125MPa。
8. The use of the apparatus for molding a preform product according to claim 1, wherein the mass of the sand, the mass of the sand-binder, and the like,5-10, the mass ratio of the broken stone to the slag is 19 2 +7285k-409.1MPa。
9. The use method of the prefabricated product forming device according to claim 1, wherein when the water consumption accounts for 12% of the total mass, the mass of the yellow river sand accounts for 38% of the total mass, the mass of the silt consolidation agent accounts for 20% of the total mass, the pressure is 0.2MPa, the vibration time of the vibration motor is 15s, the mass of the crushed stone accounts for 30% -m of the total mass, and the ratio m of the mass of the slag to the total mass is equal to or more than 0 and equal to or less than 0.2, the average strength of the manufactured prefabricated product is-500 m 2 +91m+21.8MPa。
10. The use method of the prefabricated product forming device according to claim 1, wherein when the mass ratio of the yellow river sand, the mass of the silt consolidation agent, the mass of the crushed stone of 5-10 and the mass of the slag is 19
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