CN109231900B - Clay hollow sound-absorbing brick and 3D printing preparation method thereof - Google Patents
Clay hollow sound-absorbing brick and 3D printing preparation method thereof Download PDFInfo
- Publication number
- CN109231900B CN109231900B CN201811178613.9A CN201811178613A CN109231900B CN 109231900 B CN109231900 B CN 109231900B CN 201811178613 A CN201811178613 A CN 201811178613A CN 109231900 B CN109231900 B CN 109231900B
- Authority
- CN
- China
- Prior art keywords
- clay
- sound
- hollow
- absorbing
- printing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000004927 clay Substances 0.000 title claims abstract description 119
- 239000011449 brick Substances 0.000 title claims abstract description 88
- 238000010146 3D printing Methods 0.000 title claims abstract description 24
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- 238000007639 printing Methods 0.000 claims description 41
- 239000000463 material Substances 0.000 claims description 37
- 238000011049 filling Methods 0.000 claims description 25
- 239000011148 porous material Substances 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 15
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 14
- 230000008569 process Effects 0.000 claims description 12
- 238000003475 lamination Methods 0.000 claims description 10
- 239000002699 waste material Substances 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 239000002245 particle Substances 0.000 claims description 7
- 238000007605 air drying Methods 0.000 claims description 3
- 239000012153 distilled water Substances 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 238000000227 grinding Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 238000007873 sieving Methods 0.000 claims description 3
- 239000002689 soil Substances 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 13
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000010521 absorption reaction Methods 0.000 description 25
- 239000004567 concrete Substances 0.000 description 8
- 230000006872 improvement Effects 0.000 description 8
- 238000013461 design Methods 0.000 description 5
- 238000009826 distribution Methods 0.000 description 4
- 239000011358 absorbing material Substances 0.000 description 2
- 239000004566 building material Substances 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000011490 mineral wool Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 235000008429 bread Nutrition 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000011362 coarse particle Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 239000011491 glass wool Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000011470 perforated brick Substances 0.000 description 1
- 239000011178 precast concrete Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/001—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing unburned clay
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y10/00—Processes of additive manufacturing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y70/00—Materials specially adapted for additive manufacturing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y80/00—Products made by additive manufacturing
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
- E04B1/84—Sound-absorbing elements
- E04B1/8404—Sound-absorbing elements block-shaped
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C1/00—Building elements of block or other shape for the construction of parts of buildings
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00034—Physico-chemical characteristics of the mixtures
- C04B2111/00181—Mixtures specially adapted for three-dimensional printing (3DP), stereo-lithography or prototyping
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/52—Sound-insulating materials
Abstract
The invention provides a hollow clay sound-absorbing brick which comprises a cuboid or cube clay brick body, wherein the clay brick body is hollow, and a sound inlet surface with a porous surface and a non-sound inlet surface with a closed surface are arranged on the clay brick body. The invention also provides a 3D printing preparation method of the clay hollow sound-absorbing brick. The invention has the beneficial effects that: the clay hollow sound-absorbing brick has good sound-absorbing effect, particularly high-frequency sound-absorbing effect, low cost and environment-friendly manufacturing process.
Description
Technical Field
The invention relates to a hollow sound-absorbing brick, in particular to a clay hollow sound-absorbing brick and a 3D printing preparation method thereof.
Background
In the design of the sound environment of a building, the use of materials is comprehensively considered, and the materials comprise sound absorption performance, decoration, strength, fire prevention, moisture absorption, processing and the like. In sound quality design and noise control, sound absorbing materials and sound absorbing structures are mainly used. The sound absorption material mainly depends on the sound absorption characteristic of the material, and because a large number of tiny pores are formed in the material, sound waves can penetrate into the material along the pores to have a friction effect with the material, so that sound energy is converted into heat energy, and the sound absorption effect is achieved. Common fiber or porous materials such as glass wool, rock wool, mineral wool, plant fiber spraying and the like. The sound absorption structure means that the material itself may not have sound absorption characteristics, but the material is made into a certain structure to generate sound absorption, the sound absorption mechanism is Helmholtz resonance, the external space is connected with the internal space through a narrow bottleneck, and when sound waves are incident, violent resonance action is generated between the sound waves and the air and the internal space of the neck on the resonance frequency to lose sound energy. Such as perforated gypsum board ceilings, micro-perforated plates, slit bricks, etc.; in addition, the film or the thin plate can absorb sound when forming a cavity with other structures, and the sound absorption mechanism of the structure is the resonance of the thin plate, and at the resonance frequency, the sound energy is absorbed in a large amount due to the violent vibration of the thin plate. The resonance absorption of the thin plate is mostly better in low frequency sound absorption performance, and the thin plate is specifically applied to wood plates, metal plates and the like.
At present, the sound-absorbing brick commonly used in buildings can be mainly divided into two forms, namely an aerated concrete block, and the aerated concrete air hole structure shows that a large number of closed air holes are uniformly distributed in the aerated concrete like bread, so that the sound-absorbing brick has sound-absorbing performance which is not possessed by common building materials. Secondly press from both sides sound absorbing material's brick for building, its structural feature is: the sound absorption brick is composed of a porous concrete block, a non-porous concrete block and a sound absorption material, wherein the sound absorption material is positioned between the porous concrete block and the non-porous concrete block, a plurality of holes are formed in the porous concrete, the depth of the holes is from the surface to the position of the sound absorption material, and the sound absorption material in the middle part is mainly used for absorbing sound of the sound absorption brick with the sandwich structure.
The existing sound-absorbing brick mainly has the defects of high cost and environmental-friendliness in the manufacturing process.
Therefore, it is an urgent technical problem to be solved by those skilled in the art to provide a sound-absorbing brick with good sound-absorbing effect, low cost and environment-friendly manufacturing process.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a clay hollow sound-absorbing brick and a 3D printing preparation method thereof.
The invention provides a hollow clay sound-absorbing brick which comprises a cuboid or cube clay brick body, wherein the clay brick body is hollow, and a sound inlet surface with a porous surface and a non-sound inlet surface with a closed surface are arranged on the clay brick body.
As a further improvement of the invention, the number of the sound inlet surfaces of the clay brick body is between 1 and 5, the filling rate of the material of the sound inlet surfaces is 30-60%, and the filling rate of the material of the non-sound inlet surfaces is 100%.
As a further improvement of the invention, the rear part of the clay brick body is provided with a rear cavity.
The invention also provides a 3D printing preparation method of the clay hollow sound-absorbing brick, which comprises the following steps:
s1, preparing clay slurry;
s2, filling clay slurry into a feeding cylinder;
s3, setting the filling rate of the material through software;
s4, setting the printing stacking height, namely the diameter of the clay strips;
s5, aiming at the overlapping and overlapping printing and the dislocation overlapping printing, different 3D printing methods are adopted, and the clay hollow sound-absorbing brick is printed in a 3D mode;
s6, air-drying the clay hollow sound-absorbing brick.
As a further improvement of the invention, in step S5, the clay hollow sound-absorbing brick with uniformly distributed porosity is printed by superposition and lamination, that is, each layer of clay strip is on the same horizontal plane, and the printing is completed from top to bottom once; for the clay hollow sound-absorbing brick printed by superposition and lamination, the filling rate of the material is set to be 30-60 percent by software.
As a further improvement of the present invention, in step S5, the filling rate of the material of the overlap-printed clay hollow acoustical tile is set to a constant value by software.
As a further improvement of the present invention, in step S5, the clay hollow sound-absorbing brick with non-uniform porosity is printed in a staggered and laminated manner, i.e. the same clay strip is not on the same horizontal plane, and the printing of the whole clay hollow sound-absorbing brick is completed by dividing into several parts; for the hollow acoustical tile of the hollow clay that misplaces the stromatolite and print, print the hollow acoustical tile of the clay into a plurality of parts respectively, when printing every part, need print out outside whole frame first, and to the complicated pore structure of inside then adopt the notch cuttype to print the route and realize, outside-in promptly, the printing mode that the pore reduces gradually to realize three-dimensional inside pore structure.
As a further improvement of the present invention, in step S5, the filling ratio of the material of the offset-laminated-printed clay hollow acoustical tile is controlled by software to be any one of a linear increase, a non-linear increase, a linear decrease and a non-linear decrease.
As a further improvement of the present invention, step S1 includes: drying, grinding and sieving the waste clay, taking out the clay particles with the particle size of less than 0.075mm, adding a proper amount of distilled water, and uniformly stirring to control the water content of the clay slurry within the range of 1% -4% exceeding the liquid limit, in the step S5, in the 3D printing process, adjusting the output rate of the clay slurry by changing the output air pressure of a vacuum pump, wherein the output air pressure of the vacuum pump is controlled within the range of 0.18MPa-0.2 MPa.
As a further improvement of the invention, in step S3, the sound inlet surface of the clay hollow sound-absorbing brick is a porous surface, and the filling rate of the material is set to be 30% -60% in the printing process; the non-sound-entering surface of the clay hollow sound-absorbing brick is a closed surface, and the filling rate of the material is set to be 100% in the printing process.
The invention has the beneficial effects that: through the scheme, the clay hollow sound-absorbing brick has a good sound-absorbing effect, particularly a high-frequency sound-absorbing effect, is low in cost and is environment-friendly in the manufacturing process.
Drawings
Fig. 1 is a schematic view of a 3D printed clay hollow acoustical tile of the present invention.
Fig. 2 is a schematic view of a 3D printed clay hollow acoustical tile without a rear cavity according to the present invention.
Fig. 3 is a schematic view of a 3D printed clay hollow acoustical tile with a rear cavity according to the present invention.
Fig. 4 is a schematic view showing the distribution of the porosity of a 3D-printed clay hollow acoustical tile according to the present invention.
Detailed Description
The invention is further described with reference to the following description and embodiments in conjunction with the accompanying drawings.
As shown in fig. 1 to 4, a hollow clay sound-absorbing brick is realized by 3D printing with clay, and includes a rectangular or square clay brick body 1, the clay brick body 1 is hollow, and the clay brick body 1 is provided with a sound inlet surface 11 having a porous surface and a non-sound inlet surface 12 having a closed surface.
As shown in fig. 1 to 4, the number of sound entrance surfaces 11 of the clay brick body 1 is between 1 and 5, and the clay brick body 1 includes, but is not limited to, the following four sound entrance surfaces 11: single-side sound feeding; three-side sound inlet; four-sided sound and five-sided sound.
As shown in fig. 1 to 4, the filling rate of the material of the sound entrance surface 11 is 30% to 60%, and the filling rate of the material of the non-sound entrance surface 12 is 100%.
As shown in fig. 1 to 4, a rear cavity 13 is provided at the rear of the clay brick body 1, the clay brick body 1 has a large sound absorption amount for middle and high frequency sound waves, and the rear cavity 13 is left behind to have a large sound absorption amount for low frequency sound waves.
As shown in FIG. 4, the clay hollow sound-absorbing brick provided by the invention can realize 5 different porosity distribution modes from the sound inlet surface to the inside, namely uniform distribution c, linear increase d, nonlinear increase e, linear decrease b and nonlinear decrease a, thereby realizing different sound-absorbing effects.
As shown in fig. 1 to 4, a 3D printing preparation method of a clay hollow acoustical tile comprises the following steps;
(1) preparing clay slurry. Drying, grinding and sieving the waste clay, taking out the clay particles with the particle size of less than 0.075mm, adding a proper amount of distilled water, and uniformly stirring to control the water content of clay slurry within the range of 1-4% above the liquid limit.
(2) The clay slurry was loaded into a feed cylinder. The clay slurry is uniformly and compactly filled into the feeding cylinder, so that the phenomenon that the continuity of the printing process is seriously influenced due to the existence of air in the feeding cylinder in the printing process and the clay sound-absorbing brick has obvious defects is avoided. In addition, the clay slurry needs to meet the material requirements of the clay sound-absorbing brick.
(3) The fill rate of the material was set by software. Different fill rates should be used for different planes. The sound inlet surface is a porous surface, so that the filling rate of the sound inlet surface is set to be 30% -60% in the printing process, the non-sound inlet surface is a closed surface, and the filling rate of the sound inlet surface is set to be 100% in the printing process.
(4) The print stack height, i.e. the clay rod diameter, is set. When the printing stacking height is controlled to meet the precision requirement of a printer nozzle and within the range of 2mm, the size error of a printed finished product can be controlled within 5 percent, and the printing effect is good.
(5) Different printing methods should be used for overlay printing and offset overlay printing. For the clay sound-absorbing brick printed by overlapping, the structural forms of all horizontal planes are completely the same because the whole pores are uniformly distributed. Therefore, the filling rate is set to be 30% -60% through software, and the printing is carried out according to a preset software model form; the clay sound-absorbing brick printed in the staggered lamination mode is complicated in software model and uneven in pore distribution, so that the clay sound-absorbing brick needs to be divided into four parts to be printed respectively, when each part is printed, an external integral frame needs to be printed firstly, and a step-type printing path is adopted for an internal complex pore structure to realize, namely, the printing mode that pores are gradually reduced from outside to inside is realized, so that a three-dimensional internal pore structure is realized.
(6) Printing the clay hollow sound-absorbing brick. The output speed of the clay slurry is adjusted by changing the pumping air pressure in the printing process, and multiple tests show that when the output air pressure of the vacuum pump is in the range of 0.18MPa-0.2MPa, the printing clay strips are continuous and matched with the moving speed of the spray head, and the clay hollow sound-absorbing brick has good forming effect.
(7) And air-drying the clay hollow sound-absorbing brick. Because the clay hollow sound-absorbing brick which is just printed and formed has larger water content and lower strength, the clay hollow sound-absorbing brick can be air-dried by placing the clay hollow sound-absorbing brick in a natural environment, and the strength of the air-dried clay hollow sound-absorbing brick can be obviously improved.
The clay hollow sound-absorbing brick with uniformly distributed porosity is printed by superposition and lamination, namely, each layer of clay strip is printed on the same horizontal plane from top to bottom once; and the clay hollow sound-absorbing brick with non-uniform porosity (including linear increase, non-linear increase, linear decrease and non-linear decrease) is printed by staggered lamination, that is, the same clay strip is not on the same horizontal plane, and the printing of the whole clay hollow sound-absorbing brick needs to be completed by dividing into a plurality of parts.
The clay hollow sound-absorbing bricks with uniformly distributed porosity are printed by superposition and lamination, namely, the printing filling rate is set to be a constant value in software; and the clay hollow sound-absorbing bricks with non-uniform porosity (including linear increase, non-linear increase, linear decrease and non-linear decrease) are printed by staggered lamination, namely, a pore structure with linear increase, non-linear increase, linear decrease and non-linear decrease is adopted in model design, and the filling rate of the material is controlled by software to be linearly increased, non-linear increase, linear decrease and non-linear decrease in the printing process.
According to the clay hollow sound-absorbing brick and the 3D printing preparation method thereof, the 3D printing material is obtained from building waste soil or muck, coarse particles (non-clay particles) are removed through screening and are matched with proper amount of water for blending, 3D printing is carried out through programmed program control, and the 3D printing clay sound-absorbing brick with a sound-absorbing structure and different pore distribution characteristics can be prepared.
The clay hollow sound-absorbing brick provided by the invention realizes the sound-absorbing effect through the space structure realized by 3D laminated printing, and also realizes the sound absorption through the micropores of the clay, and the two modes are complementary.
The clay hollow sound-absorbing brick provided by the invention can be widely applied to various buildings and structures, and can be used as a bearing member and an enclosure member of various buildings.
The clay hollow sound-absorbing brick and the 3D printing preparation method thereof provided by the invention have the following advantages:
(1) the clay hollow sound-absorbing brick realizes the sound-absorbing effect through the space structure realized by 3D laminated printing, and also realizes the sound absorption through the micropores of pure clay, and the two modes are complementary.
(2) The 3d printing material is taken from building waste soil or muck, so that the cost of the sound-absorbing brick is reduced, the waste resources are recycled, and the theme of current green development is met.
(3) Compared with other building materials, the clay material is corrosion-resistant, has a wider absorption frequency band and a higher sound absorption coefficient (especially the sound absorption coefficient of 125-200Hz in the medium-high frequency range), and is low in maintenance cost and good in durability.
(4) Compared with other microporous plates, the clay hollow sound-absorbing brick has the advantages of high compressive strength, good earthquake resistance, simple structure, easy construction, direct masonry and short construction period.
(5) The clay hollow sound-absorbing brick has the excellent properties of moisture resistance, good fireproof performance, lower volume weight, good thermal stability and the like.
(6) Different from traditional precast concrete perforated brick streamlined production, as a digital production mode, but the hollow sound-absorbing brick of clay that 3D printed is rapid prototyping, and it is accurate to build control (3D prints the shaping precision and all can control below 0.3 mm basically), and can change structural morphology according to the design requirement of difference conveniently, realizes the production of more complicated sound insulation structural design.
(7) The novel printing mode of the staggered lamination can well realize the printing of the clay hollow sound-absorbing brick with non-uniform porosity (including linear increase, non-linear increase, linear decrease and non-linear decrease), and can achieve better sound-absorbing effect.
The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.
Claims (8)
1. A hollow clay sound-absorbing brick is characterized in that: the sound-absorbing brick comprises a cuboid or cube clay brick body, wherein the clay brick body is hollow, a sound-absorbing surface with a porous surface and a non-sound-absorbing surface with a closed surface are arranged on the clay brick body, the number of the sound-absorbing surfaces of the clay brick body is between 1 and 5, the filling rate of a material of the sound-absorbing surface is 30-60 percent, the filling rate of a material of the non-sound-absorbing surface is 100 percent, and a rear cavity is arranged at the rear part of the clay brick body; wherein, the clay hollow sound-absorbing brick is directly prepared from waste clay which is taken from building waste soil or muck.
2. The 3D printing preparation method of the clay hollow acoustical tile according to claim 1, comprising the steps of:
s1, preparing clay slurry;
s2, filling clay slurry into a feeding cylinder;
s3, setting the filling rate of the material through software;
s4, setting the printing stacking height, namely the diameter of the clay strips;
s5, aiming at the overlapping and overlapping printing and the dislocation overlapping printing, different 3D printing methods are adopted, and the clay hollow sound-absorbing brick is printed in a 3D mode;
s6, air-drying the clay hollow sound-absorbing brick.
3. The 3D printing preparation method of the clay hollow acoustical tile according to claim 2, characterized in that: in step S5, the clay hollow sound-absorbing bricks with uniformly distributed porosity are printed by superposition and lamination, that is, each layer of clay strip is on the same horizontal plane, and the printing is completed from top to bottom once; for the clay hollow sound-absorbing brick printed by superposition and lamination, the filling rate of the material is set to be 30-60 percent by software.
4. The 3D printing preparation method of the clay hollow acoustical tile according to claim 3, characterized in that: in step S5, the filling factor of the material of the overlap-printed clay hollow acoustical tile is set to a constant value by software.
5. The 3D printing preparation method of the clay hollow acoustical tile according to claim 2, characterized in that: in step S5, the clay hollow sound-absorbing brick with non-uniform porosity is printed in a staggered and laminated manner, that is, the same clay strip is not on the same horizontal plane, and the printing of the whole clay hollow sound-absorbing brick is divided into a plurality of parts; for the hollow acoustical tile of the hollow clay that misplaces the stromatolite and print, print the hollow acoustical tile of the clay into a plurality of parts respectively, when printing every part, need print out outside whole frame first, and to the complicated pore structure of inside then adopt the notch cuttype to print the route and realize, outside-in promptly, the printing mode that the pore reduces gradually to realize three-dimensional inside pore structure.
6. The 3D printing preparation method of the clay hollow acoustical tile according to claim 5, characterized in that: in step S5, the filling rate of the material of the offset laminated printed clay hollow acoustical tile is controlled by software to be any one of a linear increase, a non-linear increase, a linear decrease, and a non-linear decrease.
7. The 3D printing preparation method of the clay hollow acoustical tile according to claim 2, characterized in that: step S1 includes: drying, grinding and sieving the waste clay, taking out the clay particles with the particle size of less than 0.075mm, adding distilled water, and uniformly stirring to control the water content of the clay slurry within the range of 1% -4% exceeding the liquid limit, in the step S5, in the 3D printing process, adjusting the output rate of the clay slurry by changing the output air pressure of a vacuum pump, wherein the output air pressure of the vacuum pump is controlled within the range of 0.18MPa-0.2 MPa.
8. The 3D printing preparation method of the clay hollow acoustical tile according to claim 2, characterized in that: in step S3, the sound inlet surface of the clay hollow sound-absorbing brick is a porous surface, and the filling rate of the material is set to 30% -60% in the printing process; the non-sound-entering surface of the clay hollow sound-absorbing brick is a closed surface, and the filling rate of the material is set to be 100% in the printing process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811178613.9A CN109231900B (en) | 2018-10-10 | 2018-10-10 | Clay hollow sound-absorbing brick and 3D printing preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811178613.9A CN109231900B (en) | 2018-10-10 | 2018-10-10 | Clay hollow sound-absorbing brick and 3D printing preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109231900A CN109231900A (en) | 2019-01-18 |
| CN109231900B true CN109231900B (en) | 2021-06-15 |
Family
ID=65054439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811178613.9A Active CN109231900B (en) | 2018-10-10 | 2018-10-10 | Clay hollow sound-absorbing brick and 3D printing preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109231900B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114108936A (en) * | 2021-10-25 | 2022-03-01 | 南京绿色增材智造研究院有限公司 | 3D printing light structural part for building and manufacturing process |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85205588U (en) * | 1985-12-21 | 1987-02-04 | 深圳市建筑科学中心 | Non-sintered clay hollow brick |
| CN2605330Y (en) * | 2003-03-19 | 2004-03-03 | 王鸣高 | Concrete blind hole brick |
| CN202017296U (en) * | 2011-03-23 | 2011-10-26 | 刘义 | Composite heat insulation porous brick |
| CN105484385A (en) * | 2016-01-13 | 2016-04-13 | 刘彩声 | Combined type acoustical wall |
| CN106223503A (en) * | 2016-08-24 | 2016-12-14 | 梁丽珍 | A kind of multilamellar quieter material |
| TWM549797U (en) * | 2017-03-22 | 2017-10-01 | Leadchang Ceramic Co Ltd | Improved easily-cut porous brick structure |
| CN107237413A (en) * | 2017-06-07 | 2017-10-10 | 浙江农林大学 | A kind of programmable combination hole sound absorbing material |
| CN108136496A (en) * | 2015-10-09 | 2018-06-08 | 赛丹思科大学 | 3d printing raw material and its application |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101057748B1 (en) * | 2008-09-18 | 2011-08-19 | 한국바이린주식회사 | Nonwoven fabric for automobile interior and its manufacturing method |
-
2018
- 2018-10-10 CN CN201811178613.9A patent/CN109231900B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85205588U (en) * | 1985-12-21 | 1987-02-04 | 深圳市建筑科学中心 | Non-sintered clay hollow brick |
| CN2605330Y (en) * | 2003-03-19 | 2004-03-03 | 王鸣高 | Concrete blind hole brick |
| CN202017296U (en) * | 2011-03-23 | 2011-10-26 | 刘义 | Composite heat insulation porous brick |
| CN108136496A (en) * | 2015-10-09 | 2018-06-08 | 赛丹思科大学 | 3d printing raw material and its application |
| CN105484385A (en) * | 2016-01-13 | 2016-04-13 | 刘彩声 | Combined type acoustical wall |
| CN106223503A (en) * | 2016-08-24 | 2016-12-14 | 梁丽珍 | A kind of multilamellar quieter material |
| TWM549797U (en) * | 2017-03-22 | 2017-10-01 | Leadchang Ceramic Co Ltd | Improved easily-cut porous brick structure |
| CN107237413A (en) * | 2017-06-07 | 2017-10-10 | 浙江农林大学 | A kind of programmable combination hole sound absorbing material |
Non-Patent Citations (1)
| Title |
|---|
| 多孔吸音陶瓷的制备;汪永清等;《硅酸盐通报》;20100615;第29卷(第03期);608-611 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109231900A (en) | 2019-01-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9849607B2 (en) | Methods and systems for the formation and use of reduced weight building blocks forms | |
| CN102643057B (en) | Construction method of EPS (expanded polystyrene) light aggregate concrete thermal insulation building mould | |
| CN103449783A (en) | Light-weight partition wall board and manufacturing method thereof | |
| CN109231900B (en) | Clay hollow sound-absorbing brick and 3D printing preparation method thereof | |
| CN108729585A (en) | Steam pressurized concrete composite heat insulation assembled wallboard, block structure and its preparation method and application | |
| CN205276526U (en) | Compound heat preservation partition plate that gives sound insulation of aerogel | |
| EP3109217A1 (en) | Stable moldings or plates for thermal insulation and for fire protection, the process for their production and their use as well as building comprising such ones | |
| CN104612321A (en) | Light high-strength inner partitioning wall plate and manufacturing method | |
| CN1288107C (en) | Light hollow block with polystyrene particle and production thereof | |
| CN109403537B (en) | Volcanic slag concrete composite self-insulation building block | |
| CN203769136U (en) | Double-board superimposed inner partition wall body | |
| CN203613710U (en) | Inorganic foaming light partition board | |
| CN107761995A (en) | Light-weight aseismatic sound-proof wall body and house | |
| EP2765251A1 (en) | Thermal insulation composite, in particular plate-shaped thermal insulation composite, and thermal insulation composite area in particular thermal insulation panel area, comprising composite thermal insulation or thermal insulation panels, and process for the preparation of thermal insulation composites, in particular thermal insulation panels, and use of thermal insulation composites, in particular thermal insulation panels, for the thermal insulation of buildings | |
| CN201128965Y (en) | Large porosity thin wall porous brick | |
| CN208168128U (en) | A kind of environment-friendly composite material compacting wallboard | |
| CN209703766U (en) | A kind of aerated concrete wall structure | |
| CN101274834A (en) | Cast stone sound absorbing board and preparation thereof | |
| CN109397474B (en) | Construction method of building material with microcosmic directional porous structure and refrigerating device | |
| CN220167231U (en) | But assembled multi-functional composite wall material | |
| CN110607884A (en) | Structure and energy-saving board with heat insulation and decoration and manufacturing method thereof | |
| CN1899784B (en) | Process for producing light aggregate concrete plate | |
| CN205853451U (en) | A kind of flexible inorganic fireproof decoration plate and thermal insulating composite panel | |
| CN215253572U (en) | Composite ceramsite wallboard containing rock wool heat insulation layer | |
| CN104746789A (en) | High-strength light-weight partition building block |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |