CN109499868A - Large format polyurethane sieve plate of strip cord and preparation method thereof - Google Patents
Large format polyurethane sieve plate of strip cord and preparation method thereof Download PDFInfo
- Publication number
- CN109499868A CN109499868A CN201811473930.3A CN201811473930A CN109499868A CN 109499868 A CN109499868 A CN 109499868A CN 201811473930 A CN201811473930 A CN 201811473930A CN 109499868 A CN109499868 A CN 109499868A
- Authority
- CN
- China
- Prior art keywords
- sieve plate
- monolithic
- wirerope
- polyurethane
- large format
- 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.)
- Pending
Links
- 229920002635 polyurethane Polymers 0.000 title claims abstract description 27
- 239000004814 polyurethane Substances 0.000 title claims abstract description 27
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 claims abstract description 23
- 238000000465 moulding Methods 0.000 claims abstract description 22
- 239000011265 semifinished product Substances 0.000 claims abstract description 21
- 239000000047 product Substances 0.000 claims abstract description 8
- 229920003225 polyurethane elastomer Polymers 0.000 claims abstract description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 229910001220 stainless steel Inorganic materials 0.000 claims description 6
- 239000010935 stainless steel Substances 0.000 claims description 6
- 239000013590 bulk material Substances 0.000 claims description 2
- 229920001169 thermoplastic Polymers 0.000 claims 1
- 239000004416 thermosoftening plastic Substances 0.000 claims 1
- 239000004433 Thermoplastic polyurethane Substances 0.000 abstract description 9
- 229920002803 thermoplastic polyurethane Polymers 0.000 abstract description 9
- 229920001971 elastomer Polymers 0.000 abstract description 7
- 239000000806 elastomer Substances 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000002994 raw material Substances 0.000 abstract description 5
- 238000001746 injection moulding Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000010412 perfusion Effects 0.000 description 1
- 238000004382 potting Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000003319 supportive effect Effects 0.000 description 1
- 239000006188 syrup Substances 0.000 description 1
- 235000020357 syrup Nutrition 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
- B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
- B07B1/4618—Manufacturing of screening surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C2045/1486—Details, accessories and auxiliary operations
- B29C2045/14868—Pretreatment of the insert, e.g. etching, cleaning
Abstract
The invention discloses large format polyurethane sieve plate of strip cord and preparation method thereof, sieve plate includes that m column semi-finished product sieve plate is spliced；Each column semi-finished product sieve plate includes that n row monolithic sieve plate is spliced；Monolithic sieve plate is embedded with wirerope, and monolithic sieve plate is prepared by polyurethane elastomer.Preparation method includes: wirerope to be arranged in molding die, and prepare thermoplastic polyurethane elastomer sieve plate using Shooting Technique by molding die, obtains monolithic sieve plate；Multiple monolithic sieve plates are placed in connecting mold and are linked into an integrated entity structure by Shooting Technique, semi-finished product sieve plate that is single-row and including n row monolithic sieve plate is formed it into；Multiple semi-finished product sieve plates are connected as m column, form it into required finished product sieve plate.Sieve plate and preparation method of the invention reduces the investment of raw material, equipment and mold, reduces manufacturing cost；Intensity itself, wearability, elasticity and bearing capacity are effectively increased, sieve plate weight is alleviated.
Description
Technical field
The present invention relates to sieve plate technical fields, more particularly to the large format polyurethane sieve plate and its system of a kind of strip cord
Preparation Method.
Background technique
Steel-wire screen to be used is led currently on the market, and mainly machine tool weaves, the reason of because of material, for a long time
Quickly using abrasion, normal condition will be replaced for one week, and the wearability and elasticity of product are all very poor.For sandstone vibrating screen
Speech, wire side is big, and width is usually 1.8 meters~2.5 meters, and length is usually 1.8 meters~7.5 meters, since using face width is big, makes
Its overall cost is higher, such as transportation cost, installation maintenance cost, replacement cost, purchase cost, manufacturing cost etc..
Summary of the invention
The present invention is directed at least solve one of the technical problems existing in the prior art.For this purpose, the invention proposes one kind
The preparation method of the large format polyurethane sieve plate of strip cord, includes the following steps:
A, it prepares monolithic sieve plate: arranging wirerope in molding die, and prepared by molding die using Shooting Technique
Thermoplastic polyurethane elastomer sieve plate ontology obtains monolithic sieve plate；
B, prepare semi-finished product sieve plate: n monolithic sieve plate prepared by step A links into an integrated entity structure, forms it into single-row
It and include the semi-finished product sieve plate of n row monolithic sieve plate, wherein n is positive integer, and n >=2；
C, prepare finished product sieve plate: m semi-finished product sieve plate prepared by step B connects into m column, forms it into required finished product
Sieve plate, wherein m is positive integer, and m >=2.
Further, the wirerope in the step A is in tension.
Further, the mode of wirerope is arranged in the step A in molding die are as follows: the type chamber of the molding die
The interior multiple fixed columns of setting, one end of wirerope are fixed in a fixed column, then wirerope is successively wrapped in remaining and is consolidated
It tenses, and is fixed in the last one fixed column after fixed column, it is ensured that wirerope is intracavitary in tension in the type of molding die
State.
Further, the connection type in the step B, step C include using fastener connect or/and be bonded or/and
The mode of welding links into an integrated entity structure, or is placed in connecting mold and is linked into an integrated entity structure by Shooting Technique injection molding.
Further, the fastener connection includes riveting or is bolted.
Further, the wirerope is stainless steel steel wire, a diameter of 0.3~5mm.
It, can be according to sieve plate actual demand size tune by the way that large format polyurethane sieve plate is divided into Multi-step injection molding, is formed by connecting
The size for saving monolithic sieve plate, reduces the investment of raw material, equipment and mold, reduces manufacturing cost；Using Shooting Technique system
Standby thermoplastic polyurethane elastomer sieve plate can effectively increase intensity itself, wearability, elasticity and bearing capacity, while also mitigate
Sieve plate weight reduces transportation cost and manpower output cost.
The invention also provides a kind of large format polyurethane sieve plate of strip cord, including m column, n row monolithic sieve plate, institutes
Stating monolithic sieve plate includes sieve plate ontology and skeleton, and the skeleton is arranged in the sieve plate ontology, and the sieve plate bulk material is
Polyurethane elastomer；An overall structure is constituted between each monolithic sieve plate for seamless connection；The skeleton includes steel wire
Rope, multiple positioning columns, the wirerope are successively wrapped in after the multiple fixed column in tension, wherein m, n are positive whole
Number, and m >=2, n >=2.
Further, the wirerope is stainless steel steel wire, a diameter of 0.3~5mm.
Further, the connection type between the monolithic sieve plate is that fastener is connected or/and is bonded or/and is welded to connect
It is into a single integrated structure, or be placed in connecting mold and the structure that links into an integrated entity is molded by Shooting Technique.
Since large format polyurethane sieve plate is spliced semi-finished product sieve plate by n row monolithic sieve plate, and finally by m column semi-finished product
Sieve plate is spliced, using splicing obtain large format polyurethane sieve plate can according to actual needs size adjust monolithic sieve plate ruler
It is very little, the investment of raw material, equipment and mold is reduced, manufacturing cost is reduced；Since monolithic sieve plate is by polyurethane elastomer
Preparation, and wirerope is tension, therefore can effectively increase intensity, wearability, elasticity and the bearing capacity of sieve plate, while also subtracting
Light sieve plate weight, reduces transportation cost and manpower output cost.
Detailed description of the invention
Fig. 1 is the positive structure schematic of the large format polyurethane sieve plate of strip cord of the present invention；
Fig. 2 is skeleton structure schematic diagram；
Wherein, 1, the large format polyurethane sieve plate of strip cord；2, monolithic sieve plate；3, fixed column；4, wirerope.
Specific embodiment
The embodiment of the present invention is described below in detail, in the description of the present invention, it is to be understood that, term " center ",
The orientation of instructions such as "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside" or
Positional relationship is that for the convenience of describing the present invention and simplifying the description, rather than the device or element of indication or suggestion meaning must have
There is specific orientation, be constructed and operated in a specific orientation, therefore is not considered as limiting the invention.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " setting " shall be understood in a broad sense, for example, it may be being fixedly linked, being arranged, may be a detachable connection, is arranged or one
It connects to body, be arranged.For the ordinary skill in the art, above-mentioned term can be understood in the present invention with concrete condition
Concrete meaning.
The invention proposes a kind of preparation method of the large format polyurethane sieve plate of strip cord,
Embodiment 1
Include the following steps:
A, it prepares monolithic sieve plate: arranging wirerope 4 in molding die, wirerope 4 is stainless steel steel wire, a diameter of
0.3mm is poured thermoplastic polyurethane into molding die, obtains thermoplastic polyurethane elastomer monolithic sieve plate 2, i.e., using injection molding
Technique prepares thermoplastic polyurethane sieve plate, and wirerope plays a supportive role for skeleton, and thermoplastic polyurethane elastomer is sieve plate ontology
For being contacted with material；
B, it prepares semi-finished product sieve plate: multiple monolithic sieve plates prepared by step A being connected or are placed in connecting mold passes through note
Modeling technique links into an integrated entity structure, forms it into semi-finished product sieve plate that is single-row and including n row monolithic sieve plate, wherein n is positive whole
Number, and n >=2；Wherein, multiple monolithic sieve plates are placed in connecting mold in such a way that Shooting Technique connects that may is that will be multiple
Monolithic sieve plate is arranged in connecting mold, and certain interval, such as 2mm are kept between adjacent monolithic sieve plate, is equipped with above gap
Sieve plate adjacent is heated into molten condition by nozzle, by the raw material heating fusing of Thermoplastic polyurethane elastomer material in flowing
State, injector screw rod or piston push under, through the running gate system of mold most after through nozzle filling adjacent monolithic sieve plate it
Between gap in, sieve plate is melted into a whole with potting syrup, demoulds after cooling and shaping, and multiple monolithic sieve plates are connected to integral structure；
C, prepare finished product sieve plate: multiple semi-finished product sieve plates prepared by step B be connected as m column, form it into it is required at
Product sieve plate, i.e. the large format polyurethane sieve plate 1 (as shown in Figure 1) of strip cord, wherein m is positive integer, and m >=2.
Wherein, the wirerope in step A is in tension.Specifically: the type of the molding die is intracavitary equipped with multiple
One end of wirerope is fixed on a fixed column 3 (as shown in Figure 2) of type chamber, then wirerope is successively wound by fixed column 3
In remaining fixed column 3, tense wire rope is simultaneously fixed in the last one fixed column 3, it is ensured that wirerope is in molding die
Type it is intracavitary be in tension.It is this by fixed column and wirerope be placed in the process being molded in molding die namely
Insert molding process.Fixed column 3 can be metalwork, be placed in the formation of molding die, complete injection molding shape in molding die
After monolithic sieve plate, fixed column 3 resides in monolithic sieve plate a part for forming skeleton；Therefore, inside monolithic sieve plate actually
Not only there is the wirerope in tension, there is also multiple fixed columns 3, multiple fixed columns 3 are big for wirerope
Contact surface can enhance the pulling force and endurance of wirerope, can then effectively increase the intensity and bearing capacity of monolithic sieve plate.
It certainly, can be according to the monolithic sieve plate prepared in the length of required molding sieve plate and wide design procedure A before step A
Length and width；So as to prepare the monolithic sieve plate of corresponding size, ensure that wear-resisting according to the size requirements of different molding sieve plates
Material cost is also reduced while the quality requirements such as property, elasticity, intensity, avoids waste of material.
The connection type of multiple semi-finished product sieve plates includes fastening in multiple monolithic sieve plate connection types or step C in step B
Part connection is bonded or welded.Fastener connection includes riveting or the connection types such as bolt or pin.Certainly, multiple lists in step B
Piece sieve plate connection type is preferably placed in connecting mold to be linked into an integrated entity structure by Shooting Technique, passes through this connection type
Keep the intensity of each semi-finished product sieve plate higher, mechanical property is more excellent.
It, can be according to sieve plate actual demand size tune by the way that large format polyurethane sieve plate is divided into Multi-step injection molding, is formed by connecting
The size for saving monolithic sieve plate, reduces the investment of raw material, equipment and mold, reduces manufacturing cost；Using Shooting Technique system
Standby thermoplastic polyurethane elastomer sieve plate can effectively increase intensity itself, wearability, elasticity and bearing capacity, while also mitigate
Sieve plate weight reduces transportation cost and manpower output cost.And for the sieve plate of Shooting Technique preparation is compared to perfusion preparation,
Economic value is more preferable, convenient for recycling, can further reduce cost.
Embodiment 2
The invention proposes the preparation method of the large format polyurethane sieve plate of another strip cord, this method and embodiment
1 the step of, is roughly the same, and difference is in step A that wirerope diameter is 5mm.
As shown in Figure 1 and Figure 2, the invention also provides a kind of strip cords prepared by the method using above-described embodiment 1
Large format polyurethane sieve plate, polyurethane sieve plate include that m column semi-finished product sieve plate is spliced；Each column semi-finished product sieve plate includes n row list
Piece sieve plate is spliced；Monolithic sieve plate is embedded with wirerope, and monolithic sieve plate is prepared by polyurethane elastomer；Wherein, m, n are positive whole
Number, and m >=2, n >=2.Wirerope is stainless steel steel wire, a diameter of 0.3mm.Wirerope in monolithic sieve plate is tension.
It is preferably 12 that m, which is preferably 4, n, in the present embodiment.
The invention also provides a kind of large format polyurethane screens of strip cord prepared by the method using above-described embodiment 2
Plate is spliced by m column semi-finished product sieve plate；Each column semi-finished product sieve plate includes that n row monolithic sieve plate is spliced；In monolithic sieve plate
Embedded with wirerope, monolithic sieve plate is prepared by polyurethane elastomer；Wherein, m, n are positive integer, and m >=2, n >=2.In the present embodiment
M is preferably that 2, n is preferably 10.Wirerope is stainless steel steel wire, a diameter of 5mm.Wirerope in monolithic sieve plate is tension-like
State.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that: not
A variety of change, modification, replacement and modification can be carried out to these embodiments in the case where being detached from the principle of the present invention and objective, this
The range of invention is defined by the claims and their equivalents.
Claims (9)
1. a kind of preparation method of the large format polyurethane sieve plate of strip cord, which comprises the steps of:
A, it prepares monolithic sieve plate: arranging wirerope in molding die, and thermoplastic is prepared using Shooting Technique by molding die
Property Polyurethane elastomer screen deck ontology, obtain monolithic sieve plate；
B, prepare semi-finished product sieve plate: n monolithic sieve plate prepared by step A links into an integrated entity structure, forms it into single-row and wraps
The semi-finished product sieve plate of the monolithic sieve plate of row containing n, wherein n is positive integer, and n >=2；
C, prepare finished product sieve plate: m semi-finished product sieve plate prepared by step B connects into m column, forms it into required finished product screen
Plate, wherein m is positive integer, and m >=2.
2. the preparation method of the large format polyurethane sieve plate of strip cord according to claim 1, which is characterized in that described
Wirerope in step A is in tension.
3. the preparation method of the large format polyurethane sieve plate of strip cord according to claim 1, which is characterized in that described
The mode of wirerope is arranged in step A in molding die are as follows: the intracavitary multiple fixed columns of setting of the type of the molding die, by steel
One end of cord is fixed in a fixed column, then tenses after wirerope is successively wrapped in remaining fixed column, and is fixed
In in the last one fixed column, it is ensured that wirerope is intracavitary in tension in the type of molding die.
4. the preparation method of the large format polyurethane sieve plate of strip cord according to claim 1, which is characterized in that described
Step B, the connection type in step C includes the knot that links into an integrated entity in such a way that fastener is connected or/and is bonded or/and is welded
Structure, or be placed in connecting mold and the structure that links into an integrated entity is molded by Shooting Technique.
5. the preparation method of the large format polyurethane sieve plate of strip cord according to claim 4, which is characterized in that described
Fastener connection includes riveting or is bolted.
6. the preparation method of the large format polyurethane sieve plate of described in any item strip cords according to claim 1~5, the steel
Cord is stainless steel steel wire, a diameter of 0.3~5mm.
7. a kind of large format polyurethane sieve plate of the strip cord of method preparation as described in claim 1, which is characterized in that including
M column, n row monolithic sieve plate, the monolithic sieve plate include sieve plate ontology and skeleton, and the skeleton is arranged in the sieve plate ontology,
The sieve plate bulk material is polyurethane elastomer；An entirety knot is constituted between each monolithic sieve plate for seamless connection
Structure；The skeleton includes wirerope, multiple positioning columns, and the wirerope is successively wrapped in after the multiple fixed column in tension
State, wherein m, n are positive integer, and m >=2, n >=2.
8. the large format polyurethane sieve plate of strip cord according to claim 7, which is characterized in that the wirerope is not
Become rusty steel steel wire, a diameter of 0.3~5mm.
9. the large format polyurethane sieve plate of strip cord according to claim 7, which is characterized in that the monolithic sieve plate it
Between connection type be that fastener connects or/and is bonded or/and is welded to connect into a single integrated structure, or be placed in connecting mold and pass through
Shooting Technique is molded the structure that links into an integrated entity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811473930.3A CN109499868A (en) | 2018-12-04 | 2018-12-04 | Large format polyurethane sieve plate of strip cord and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811473930.3A CN109499868A (en) | 2018-12-04 | 2018-12-04 | Large format polyurethane sieve plate of strip cord and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109499868A true CN109499868A (en) | 2019-03-22 |
Family
ID=65751522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811473930.3A Pending CN109499868A (en) | 2018-12-04 | 2018-12-04 | Large format polyurethane sieve plate of strip cord and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109499868A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113733462A (en) * | 2021-11-04 | 2021-12-03 | 张家港力勤机械有限公司 | Polyurethane screen forming device |
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|---|---|---|---|---|
| US5816413A (en) * | 1995-09-08 | 1998-10-06 | W.S. Tyler, Canada | Wire screen deck having replaceable modular screen panels |
| CN1336852A (en) * | 1999-01-19 | 2002-02-20 | 美国过滤公司 | Mounting system for modular panels used in a screen deck |
| CN101226126A (en) * | 2007-11-28 | 2008-07-23 | 河南省新乡县四达有限公司 | Screen plate of high-precision multi-step coarseness check screen |
| CN106216239A (en) * | 2016-08-12 | 2016-12-14 | 北京斯克瑞科技有限公司 | A kind of thermoplastic polyurethane fine wedge wire screen net and forming method thereof |
| CN108311382A (en) * | 2018-01-29 | 2018-07-24 | 阳泉市德源晟科技有限公司 | A kind of anti-blocking automatically cleaning sieve plate production method of polyurethane |
-
2018
- 2018-12-04 CN CN201811473930.3A patent/CN109499868A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5816413A (en) * | 1995-09-08 | 1998-10-06 | W.S. Tyler, Canada | Wire screen deck having replaceable modular screen panels |
| CN1336852A (en) * | 1999-01-19 | 2002-02-20 | 美国过滤公司 | Mounting system for modular panels used in a screen deck |
| CN101226126A (en) * | 2007-11-28 | 2008-07-23 | 河南省新乡县四达有限公司 | Screen plate of high-precision multi-step coarseness check screen |
| CN106216239A (en) * | 2016-08-12 | 2016-12-14 | 北京斯克瑞科技有限公司 | A kind of thermoplastic polyurethane fine wedge wire screen net and forming method thereof |
| CN108311382A (en) * | 2018-01-29 | 2018-07-24 | 阳泉市德源晟科技有限公司 | A kind of anti-blocking automatically cleaning sieve plate production method of polyurethane |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113733462A (en) * | 2021-11-04 | 2021-12-03 | 张家港力勤机械有限公司 | Polyurethane screen forming device |
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| PB01 | Publication | ||
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Application publication date: 20190322 |