CN112726995A - Production process of rock wool strip composite board - Google Patents
Production process of rock wool strip composite board Download PDFInfo
- Publication number
- CN112726995A CN112726995A CN202011608768.9A CN202011608768A CN112726995A CN 112726995 A CN112726995 A CN 112726995A CN 202011608768 A CN202011608768 A CN 202011608768A CN 112726995 A CN112726995 A CN 112726995A
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- Prior art keywords
- rock wool
- board
- wool board
- production process
- face
- 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.)
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- 239000011490 mineral wool Substances 0.000 title claims abstract description 122
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 24
- 239000002131 composite material Substances 0.000 title claims abstract description 21
- 239000004570 mortar (masonry) Substances 0.000 claims abstract description 28
- 238000009877 rendering Methods 0.000 claims abstract description 16
- 239000003513 alkali Substances 0.000 claims abstract description 13
- 238000001035 drying Methods 0.000 claims abstract description 13
- 239000003365 glass fiber Substances 0.000 claims abstract description 13
- 239000004744 fabric Substances 0.000 claims abstract description 12
- 239000011248 coating agent Substances 0.000 claims abstract description 11
- 238000000576 coating method Methods 0.000 claims abstract description 11
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims abstract description 8
- 238000005096 rolling process Methods 0.000 claims abstract description 4
- 239000002585 base Substances 0.000 claims description 27
- 230000007246 mechanism Effects 0.000 claims description 20
- 230000005540 biological transmission Effects 0.000 claims description 12
- 238000007790 scraping Methods 0.000 claims description 10
- 239000000853 adhesive Substances 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 4
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 239000004568 cement Substances 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 claims description 3
- 238000004080 punching Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 239000002344 surface layer Substances 0.000 abstract description 3
- 230000009471 action Effects 0.000 abstract description 2
- 239000012466 permeate Substances 0.000 abstract description 2
- 238000009413 insulation Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 229920000715 Mucilage Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 239000011162 core material Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
- E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
- E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
- E04F13/0862—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements composed of a number of elements which are identical or not, e.g. carried by a common web, support plate or grid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
- B05C11/02—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface ; Controlling means therefor; Control of the thickness of a coating by spreading or distributing liquids or other fluent materials already applied to the coated surface
- B05C11/04—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface ; Controlling means therefor; Control of the thickness of a coating by spreading or distributing liquids or other fluent materials already applied to the coated surface with blades
- B05C11/048—Scrapers, i.e. metering blades having their edge oriented in the upstream direction in order to provide a reverse angle of attack
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
- B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
- B05C11/1039—Recovery of excess liquid or other fluent material; Controlling means therefor
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
- E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
- E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
- E04F13/0866—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements composed of several layers, e.g. sandwich panels or layered panels
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
- E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
- E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
- E04F13/0875—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements having a basic insulating layer and at least one covering layer
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Laminated Bodies (AREA)
Abstract
The invention relates to the technical field of rock wool composite boards, in particular to a production process of a rock wool strip composite board, which comprises the following steps: (1) manufacturing a rock wool board; (2) coating a rendering coat mortar on one end face of the rock wool board; (3) one end face of the rock wool board is compounded with the alkali-resistant glass fiber mesh cloth; (4) and (4) feeding the rock wool board into a drying tunnel until the plastering mortar on the rock wool board is dried. The superposed rock wool belts are fixed together through the reinforcing steel bars and the limiting nuts, so that the position instability of the adjacent rock wool belts is avoided, and the rock wool belt composite board produced by the production process has strong stability and prevents the rock wool belts from shifting under the action of external force; the roller presses the rolling operation on the end face of the rock wool board, so that part of the plastering mortar is soaked into the surface layer of the rock wool board and permeates between adjacent rock wool belts, the adjacent rock wool belts are bonded, and the phenomenon of gaps is avoided.
Description
Technical Field
The invention relates to the technical field of rock wool composite boards, in particular to a production process of a rock wool strip composite board.
Background
The rock wool belt composite board is a rock wool belt heat-insulation fireproof composite board, is formed by taking rock wool belts as heat-insulation core materials, arranging and assembling the rock wool belts according to a certain size, respectively coating finishing mucilage on two sides of the rock wool belts and compounding the rock wool belts with alkali-resistant glass fiber mesh cloth, has the functions of heat insulation and flame retardance, is a heat-insulation board without a decorative surface layer, and is widely applied to an external wall heat-insulation system.
In the existing process for producing the rock wool belt composite board, the rock wool belt is directly spliced, and the spliced rock wool belt is compounded with alkali-resistant glass fiber mesh through plastering mortar.
Aiming at the problems, the production process of the rock wool strip composite board is designed.
Disclosure of Invention
The invention aims to provide a production process of a rock wool strip composite plate, and aims to solve the technical problem.
In order to solve the technical problems, the invention adopts the following technical scheme:
a production process of rock wool strip composite boards comprises the following steps:
(1) manufacturing a rock wool board:
a. cutting the rock wool strips to obtain rock wool strips with the same height and the same length;
b. sending the rock wool belt into a drying tunnel for preheating and drying;
c. stacking a plurality of rock wool strips in the width direction, then punching holes in the width direction of the stacked rock wool strips, inserting reinforcing steel bars with threads into the holes, and connecting two ends of each reinforcing steel bar with limit nuts through threads;
(2) coating a rendering coat mortar on one end face of the rock wool board:
a. placing the rock wool board horizontally, wherein the end face of the rock wool board compounded with the alkali-resistant glass fiber mesh cloth faces upwards;
b. coating surface mortar on the end face of the rock wool board;
c. pressing and rolling the roller on the end face of the rock wool board;
d. scraping the scraping plate mechanism on the end surface of the rock wool plate, and trowelling the surface mortar on the end surface of the rock wool plate;
(3) one end face of the rock wool board is compounded with the alkali-resistant glass fiber mesh cloth: attaching an alkali-resistant glass fiber mesh cloth to the end face of the rock wool board coated with the rendering coat mortar;
(4) feeding the rock wool board into a drying tunnel until the plastering mortar on the rock wool board is dried;
(5) coating the other end face of the rock wool board with surface adhesive cement: and (4) turning over the rock wool board until the other end face of the rock wool board faces upwards, and repeating the steps a, b, c and d in the step (2), and the step (3) and the step (4).
Preferably, the two ends of the hole in the rock wool board in the step (1) are provided with grooves, and the limit nuts are positioned in the grooves.
Preferably, step (1), step (4) and in step (5), the rock wool board is located the upper end of transmission band, and the half of transmission band is located the drying tunnel, and the actuating mechanism of transmission band drives the transmission band and carries out positive, opposite direction motion, conveniently carries out the removal of position to the rock wool board, improves the convenient degree of operation.
Preferably, the scraping plate mechanism in the step (2) comprises a base, the upper end of the base is connected with a limiting sleeve through an adjusting mechanism, one end of the limiting sleeve is connected with a telescopic pipe in a penetrating way, the inner wall of the telescopic pipe is connected with a first long pipe, a second long pipe is movably inserted in the first long pipe, a transverse long rod is movably inserted in the second long pipe, the transverse long rod movably penetrates through the limiting sleeve,
the screw thread through-hole that sets up on the first long tube lateral wall in threaded connection has first locking screw, threaded connection has second locking screw in the screw thread through-hole that sets up on the second long tube lateral wall, threaded connection has supporting screw in the screw thread through-hole that sets up on the spacing sleeve pipe lateral wall.
Preferably, the adjusting mechanism comprises a base sleeve connected with the base and a longitudinal long rod connected with the limiting sleeve, the longitudinal long rod is movably inserted into the base sleeve, and a positioning screw is connected in a threaded through hole formed in the base sleeve in a threaded manner.
Preferably, the longitudinal long rod is connected with a rack, the outer wall of the base sleeve is connected with two side plates, the two side plates are rotatably connected with one gear, and the gear penetrates through a notch formed in the base sleeve and is meshed with the rack.
The invention has the beneficial effects that:
the superposed rock wool belts are fixed together through the reinforcing steel bars and the limiting nuts, so that the position instability of the adjacent rock wool belts is avoided, and the rock wool belt composite board produced by the production process has strong stability and prevents the rock wool belts from shifting under the action of external force;
pressing the roller on the end face of the rock wool board to roll so that part of the rendering coat mortar is soaked into the surface layer of the rock wool board and simultaneously permeates between adjacent rock wool strips, so that the adjacent rock wool strips are bonded, and the phenomenon of gaps is avoided;
scraping a scraper on the end face of the rock wool board, leveling the concave part on the end face of the rock wool board by using the operation of leveling the rendering coat mortar on the end face of the rock wool board, so that the surface of the rendering coat mortar is smooth, the bonding degree of the rock wool board and the alkali-resistant glass fiber mesh cloth is better, and the composition is more compact;
the rock wool board passes from the below of flexible pipe, and the flexible pipe that expands completely strikes off unnecessary rendering coat mortar, and scraper blade mechanism's setting strikes off rendering coat mortar on the rock wool board terminal surface, trowels, and the scalable setting of flexible pipe when not using reduces occupation space, and adjustment mechanism's setting adjusts the upper and lower position of flexible pipe, and the thickness of control rendering coat mortar drives the change that the position was gone up and down to flexible pipe through the running gear, adjusts the precision height, and the error is little.
Drawings
FIG. 1 is a schematic view of a rock wool panel according to the present invention;
FIG. 2 is a schematic view of the scraper mechanism of the present invention;
reference numerals: 10-a base; 201-a base sleeve; 202-longitudinal long rod; 203-a set screw; 204-rack; 205-side panel; 206-gear; 30-a limiting sleeve; 40-a telescopic tube; 501-a first long tube; 502-a second long tube; 503-a first locking screw; 504-a second locking screw; 505-a transverse long rod; 60-support screw.
Detailed Description
In order to make the technical means, the original characteristics, the achieved purposes and the effects of the invention easily understood, the invention is further described below with reference to the specific embodiments and the attached drawings, but the following embodiments are only the preferred embodiments of the invention, and not all embodiments. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative efforts belong to the protection scope of the present invention.
Specific embodiments of the present invention are described below with reference to the accompanying drawings.
Example 1
A production process of rock wool strip composite boards comprises the following steps:
(1) manufacturing a rock wool board:
a. cutting the rock wool strips to obtain rock wool strips with the same height and the same length;
b. sending the rock wool belt into a drying tunnel for preheating and drying;
c. stacking a plurality of rock wool strips in the width direction, then punching holes in the width direction of the stacked rock wool strips, inserting reinforcing steel bars with threads into the holes, and connecting two ends of each reinforcing steel bar with limit nuts through threads, as shown in fig. 1;
(2) coating a rendering coat mortar on one end face of the rock wool board:
a. placing the rock wool board horizontally, wherein the end face of the rock wool board compounded with the alkali-resistant glass fiber mesh cloth faces upwards;
b. coating surface mortar on the end face of the rock wool board;
c. pressing and rolling the roller on the end face of the rock wool board;
d. scraping the scraping plate mechanism on the end surface of the rock wool plate, and trowelling the surface mortar on the end surface of the rock wool plate;
(3) one end face of the rock wool board is compounded with the alkali-resistant glass fiber mesh cloth: attaching an alkali-resistant glass fiber mesh cloth to the end face of the rock wool board coated with the rendering coat mortar;
(4) feeding the rock wool board into a drying tunnel until the plastering mortar on the rock wool board is dried;
(5) coating the other end face of the rock wool board with surface adhesive cement: and (4) turning over the rock wool board until the other end face of the rock wool board faces upwards, and repeating the steps a, b, c and d in the step (2), and the step (3) and the step (4).
In the step (1), grooves are formed in two ends of the hole in the rock wool board, and the limiting nut is positioned in the grooves; in the step (1), the step (4) and the step (5), the rock wool board is positioned at the upper end of the transmission belt, one half of the transmission belt is positioned in the drying tunnel, and the driving mechanism of the transmission belt drives the transmission belt to move in the positive direction and the negative direction.
The scraping plate mechanism in the step (2) comprises a base 10, the upper end of the base 10 is connected with a limiting sleeve 30 through an adjusting mechanism, one end of the limiting sleeve 30 is connected with an extension tube 40 in a penetrating way, the inner wall of the extension tube 40 is connected with a first long tube 501, a second long tube 502 is movably inserted in the first long tube 501, a transverse long rod 505 is movably inserted in the second long tube 502, the transverse long rod 505 movably penetrates through the limiting sleeve 30,
a first locking screw 503 is in threaded connection with a threaded through hole formed in the side wall of the first long pipe 501, a second locking screw 504 is in threaded connection with a threaded through hole formed in the side wall of the second long pipe 502, and a support screw 60 is in threaded connection with a threaded through hole formed in the side wall of the limiting sleeve 30;
the adjusting mechanism comprises a base sleeve 201 connected with the base 10 and a longitudinal long rod 202 connected with the limiting sleeve 30, the longitudinal long rod 202 is movably inserted in the base sleeve 201, and a positioning screw 203 is connected in a threaded through hole formed in the base sleeve 201 in a threaded manner; the rack 204 is connected to the longitudinal rod 202, the two side plates 205 are connected to the outer wall of the base sleeve 201, the same gear 206 is rotatably connected between the two side plates 205, and the gear 206 penetrates through a notch formed in the base sleeve 201 and is meshed with the rack 204.
In the scheme, the transverse long rod 505 is pulled out of the second long tube 502, the relative position of the transverse long rod 505 and the second long tube 502 is fixed through the second locking screw 504, the second long tube 502 is pulled out of the first long tube 501, the relative position of the first long tube 501 and the second long tube 502 is fixed through the first locking screw 503, the right end of the extension tube 40 is driven to move by moving the first long tube 501, the second long tube 502 and the transverse long rod 505 until the extension tube 40 is completely unfolded, the position of the extension tube 40 is fixed by rotating the support screw 60 to abut against the transverse long rod 505,
the gear 206 is rotated to drive the rack 204 to move up and down, so that the telescopic pipe 40 is driven by the long longitudinal rod 202 and the limit sleeve 30 to move up and down, the relative positions of the base sleeve 201 and the long longitudinal rod 202 are fixed by the positioning screw 203,
the rock wool board passes from the below of flexible pipe 40, and the flexible pipe 40 that expands completely strikes off unnecessary rendering coat mortar, and the setting of scraper mechanism strikes off the rendering coat mortar on the rock wool board terminal surface, trowels, and the scalable setting of flexible pipe 40 when not using reduces occupation space, adjustment mechanism's setting adjusts the upper and lower position of flexible pipe 40, and the thickness of control rendering coat mortar drives flexible pipe 40 through rotating gear 206 and carries out the change of upper and lower position, and the regulation precision is high, and the error is little.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. The production process of the rock wool strip composite board is characterized by comprising the following steps of: the method comprises the following steps:
(1) manufacturing a rock wool board:
a. cutting the rock wool strips to obtain rock wool strips with the same height and the same length;
b. sending the rock wool belt into a drying tunnel for preheating and drying;
c. stacking a plurality of rock wool strips in the width direction, then punching holes in the width direction of the stacked rock wool strips, inserting reinforcing steel bars with threads into the holes, and connecting two ends of each reinforcing steel bar with limit nuts through threads;
(2) coating a rendering coat mortar on one end face of the rock wool board:
a. placing the rock wool board horizontally, wherein the end face of the rock wool board compounded with the alkali-resistant glass fiber mesh cloth faces upwards;
b. coating surface mortar on the end face of the rock wool board;
c. pressing and rolling the roller on the end face of the rock wool board;
d. scraping the scraping plate mechanism on the end surface of the rock wool plate, and trowelling the surface mortar on the end surface of the rock wool plate;
(3) one end face of the rock wool board is compounded with the alkali-resistant glass fiber mesh cloth: attaching an alkali-resistant glass fiber mesh cloth to the end face of the rock wool board coated with the rendering coat mortar;
(4) feeding the rock wool board into a drying tunnel until the plastering mortar on the rock wool board is dried;
(5) coating the other end face of the rock wool board with surface adhesive cement: and (4) turning over the rock wool board until the other end face of the rock wool board faces upwards, and repeating the steps a, b, c and d in the step (2), and the step (3) and the step (4).
2. The production process of rock wool strip composite boards as claimed in claim 1, wherein the production process comprises the following steps: and (2) grooves are formed in two ends of the hole in the rock wool board in the step (1), and the limiting nut is positioned in the grooves.
3. The production process of rock wool strip composite boards as claimed in claim 1, wherein the production process comprises the following steps: in the step (1), the step (4) and the step (5), the rock wool board is positioned at the upper end of the transmission belt, one half of the transmission belt is positioned in the drying tunnel, and the transmission belt is driven by a driving mechanism of the transmission belt to move in the positive direction and the negative direction.
4. The production process of rock wool strip composite boards as claimed in claim 1, wherein the production process comprises the following steps: the scraping plate mechanism in the step (2) comprises a base (10), the upper end of the base (10) is connected with a limiting sleeve (30) through an adjusting mechanism, one end of the limiting sleeve (30) is connected with a telescopic pipe (40) in a through mode, the inner wall of the telescopic pipe (40) is connected with a first long pipe (501), a second long pipe (502) is movably inserted in the first long pipe (501), a transverse long rod (505) is movably inserted in the second long pipe (502), and the transverse long rod (505) movably penetrates through the limiting sleeve (30),
the screw thread connection has first locking screw (503) in the screw thread through-hole of seting up on the first long tube (501) lateral wall, screw thread connection has second locking screw (504) in the screw thread through-hole of seting up on the second long tube (502) lateral wall, screw thread connection has supporting screw (60) in the screw thread through-hole of seting up on the stop collar (30) lateral wall.
5. The production process of rock wool strip composite plates as claimed in claim 4, wherein the production process comprises the following steps: the adjusting mechanism comprises a base sleeve (201) connected with the base (10) and a longitudinal long rod (202) connected with the limiting sleeve (30), the longitudinal long rod (202) is movably inserted into the base sleeve (201), and a positioning screw (203) is connected with a threaded through hole formed in the base sleeve (201) in a threaded mode.
6. The production process of rock wool strip composite plates as claimed in claim 5, characterized in that: the rack (204) is connected to the longitudinal long rod (202), the outer wall of the base sleeve (201) is connected with two side plates (205), the same gear (206) is rotatably connected between the two side plates (205), and the gear (206) penetrates through a notch formed in the base sleeve (201) and is meshed with the rack (204).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011608768.9A CN112726995A (en) | 2020-12-30 | 2020-12-30 | Production process of rock wool strip composite board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011608768.9A CN112726995A (en) | 2020-12-30 | 2020-12-30 | Production process of rock wool strip composite board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112726995A true CN112726995A (en) | 2021-04-30 |
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ID=75610891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011608768.9A Pending CN112726995A (en) | 2020-12-30 | 2020-12-30 | Production process of rock wool strip composite board |
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| Country | Link |
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| CN (1) | CN112726995A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117207643A (en) * | 2023-11-07 | 2023-12-12 | 山东晟鸣新材料有限公司 | Extrusion equipment of compound rock wool board |
-
2020
- 2020-12-30 CN CN202011608768.9A patent/CN112726995A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117207643A (en) * | 2023-11-07 | 2023-12-12 | 山东晟鸣新材料有限公司 | Extrusion equipment of compound rock wool board |
| CN117207643B (en) * | 2023-11-07 | 2024-01-02 | 山东晟鸣新材料有限公司 | Extrusion equipment of compound rock wool board |
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