CN110900919A - Preparation process of anti-static polyurethane and nonmetal material composite board - Google Patents
Preparation process of anti-static polyurethane and nonmetal material composite board Download PDFInfo
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- CN110900919A CN110900919A CN201811077123.XA CN201811077123A CN110900919A CN 110900919 A CN110900919 A CN 110900919A CN 201811077123 A CN201811077123 A CN 201811077123A CN 110900919 A CN110900919 A CN 110900919A
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- polyurethane
- plate
- material plate
- metallic material
- preparation process
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- 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
- B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
- B29C39/02—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles
- B29C39/10—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. casting around inserts or for coating articles
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- 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
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
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- 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
- B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
- B29C39/02—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles
- B29C39/12—Making multilayered or multicoloured articles
- B29C39/123—Making multilayered articles
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- 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
- B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
- B29C39/22—Component parts, details or accessories; Auxiliary operations
Abstract
The invention relates to the technical field of plate processing, in particular to a preparation process of an anti-static polyurethane and nonmetal material composite plate, which has the technical scheme that: a preparation process of an anti-static polyurethane and nonmetal material composite plate comprises the following steps: step S1: obtaining a non-metallic material plate; step S2: coating a heat-curable adhesive on a first side of a sheet of non-metallic material; step S3: drying the non-metal material plate coated with the hot vulcanization adhesive in the step S2 to ensure that the hot vulcanization adhesive is fixedly adhered to the first surface of the non-metal material plate; step S4: placing the non-metal material plate bonded and fixed with the hot vulcanization adhesive in the step S3 into a mold, and pouring liquid polyurethane into the mold, wherein the liquid polyurethane is positioned on the side, away from the non-metal material plate, of the hot vulcanization adhesive to form a liquid polyurethane layer; step S5: and heating the inner part of the cavity of the die in the step S4 to enable the polyurethane layer to be cured and molded on the non-metallic material plate.
Description
Technical Field
The invention relates to the technical field of plate processing, in particular to a preparation process of an anti-static polyurethane and nonmetal material composite plate.
Background
Tooling on a stamping machine typically requires the use of polyurethane plates. Because the polyurethane board is the flexible sheet, need cooperate the non-metallic material board of stereoplasm to use, specifically, polyurethane board and stereoplasm non-metallic material board both fix through the bolt to form an antistatic polyurethane and non-metallic material composite sheet. Because different customers have different requirements for the size of the composite sheet, both polyurethane sheets and rigid non-metallic material sheets are typically sold separately. When a customer makes a jig, the polyurethane plate and the hard non-metal material plate are cut according to the design size, then the polyurethane plate and the hard non-metal material plate are respectively punched, and the polyurethane plate and the hard non-metal material plate are fixed together through bolts. The processing process is relatively complicated, and time and labor are wasted.
Disclosure of Invention
In view of the above, the invention provides a preparation process of an anti-static polyurethane and nonmetal material composite board, and mainly aims to solve the problems that when an existing customer uses a polyurethane board and a hard nonmetal material board to manufacture a jig, the jig needs to be cut, punched and screwed, so that the processing process of the jig is relatively complicated, time-consuming and labor-consuming.
In order to achieve the purpose, the invention mainly provides the following technical scheme:
the embodiment of the invention provides a preparation process of an anti-static polyurethane and nonmetal material composite board, which is characterized by comprising the following steps:
step S1: obtaining a non-metallic material plate;
step S2: coating a heat-curable adhesive on a first side of a sheet of non-metallic material;
step S3: drying the non-metal material plate coated with the hot vulcanization adhesive in the step S2 to ensure that the hot vulcanization adhesive is fixedly adhered to the first surface of the non-metal material plate;
step S4: placing the non-metal material plate bonded and fixed with the hot vulcanization adhesive in the step S3 into a mold, and pouring liquid polyurethane into the mold, wherein the liquid polyurethane is positioned on the side, away from the non-metal material plate, of the hot vulcanization adhesive to form a liquid polyurethane layer;
and S5, heating the inner part of the cavity of the die in the step S4 to enable the polyurethane layer to be solidified and molded on the nonmetal material plate.
Through adopting above-mentioned technical scheme, the polyurethane layer can be fixed on nonmetal material board through the bonding of hot vulcanization adhesive, polyurethane layer and nonmetal material board form a whole, and its intensity is higher, and polyurethane layer and nonmetal material board connection stability preferred between them, thereby when the customer is buying back and forming a holistic composite sheet preparation tool, can directly cut the composite sheet into corresponding shape as required can, for prior art, saved the operation of punching and screwing bolt, the efficiency of preparation tool has been improved.
The invention is further configured to: before step S2, the method further includes:
step S11: roughening the first surface of the non-metallic material plate;
step S12: and cleaning the roughened non-metallic material plate, and then drying.
Through adopting above-mentioned technical scheme, make the first face of non-metallic material board more crude, so can increase its area of contact with hot vulcanization adhesive 3, improved the bonding effect.
The invention is further configured to: the first side of the sheet of non-metallic material is roughened by sanding or sandblasting in step S11.
By adopting the technical scheme, the first surface of the non-metallic material plate can be subjected to roughening treatment.
The invention is further configured to: the drying time in step S3 is 20-30 minutes.
By adopting the technical scheme, the hot vulcanization adhesive can be cured on the non-metal material plate and does not fall off.
The invention is further configured to: in step S5, the polyurethane layer is cured and molded on the nonmetallic material sheet by placing the mold in a vulcanizing furnace and heating the inside of the cavity of the mold.
By adopting the technical scheme, the interior of the die cavity of the die can be heated, so that the polyurethane layer is cured and formed on the non-metallic material plate.
The invention is further configured to: in step S5, the heating temperature of the interior of the mold cavity of the mold is 120-160 ℃, and the heating time is 8-12 hours.
By adopting the technical scheme, the polyurethane layer and the hot vulcanization adhesive can be fully cured and molded, so that the polyurethane layer is tightly fixed on the non-metallic material plate.
The invention is further configured to: the non-metallic material plate is a glass fiber plate, a bakelite plate or a stainless steel plate.
By adopting the technical scheme, the non-metallic material plate has excellent antistatic performance due to the inertia performance of the non-metallic material plate, and can provide antistatic protection for electronic components.
The invention is further configured to: the first surface of the non-metallic material plate is provided with convex points or concave points.
By adopting the technical scheme, the contact area between the non-metallic material plate and the hot vulcanization adhesive can be increased, and the bonding effect is improved.
By the technical scheme, the preparation process of the anti-static polyurethane and nonmetal material composite board at least has the following beneficial effects:
in the technical scheme provided by the invention, the polyurethane layer and the non-metal material plate layer of the composite plate are bonded and fixed by the hot vulcanization adhesive, so that the polyurethane layer and the non-metal material plate layer form a whole, and thus when a customer buys the anti-static polyurethane and non-metal material composite plate manufacturing jig disclosed by the invention, the composite plate can be directly cut into a corresponding shape according to the requirement, and compared with the prior art, the operation of punching and screwing the bolt is omitted, and the efficiency of manufacturing the jig is improved.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.
Drawings
Fig. 1 is a schematic cross-sectional view of an anti-static composite plate made of polyurethane and a non-metal material according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of another composite plate made of antistatic polyurethane and a non-metallic material according to an embodiment of the present invention;
fig. 3 is a flowchart of a process for manufacturing an anti-static composite plate made of polyurethane and a non-metal material according to an embodiment of the present invention.
Reference numerals: 1. a polyurethane layer; 11. a fastening part; 2. a non-metallic material ply; 21. salient points; 22. a card slot; 3. a heat-curable adhesive; 100. antistatic polyurethane and nonmetal material composite board.
Detailed Description
To further explain the technical means and effects of the present invention adopted to achieve the predetermined object, the following detailed description of the embodiments, structures, features and effects according to the present invention will be made with reference to the accompanying drawings and preferred embodiments. In the following description, different "one embodiment" or "an embodiment" refers to not necessarily the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
As shown in fig. 1, an embodiment of the present invention provides an anti-static composite plate 100 made of polyurethane and a non-metallic material, which includes a polyurethane layer 1 and a non-metallic material plate layer 2. The polyurethane layer 1 and the nonmetal material plate layer 2 are bonded and fixed by a heat vulcanization adhesive 3.
The heat-vulcanized adhesive 3 is commonly called heat-vulcanized glue, and is used for bonding and fixing two substrates together by curing the glue in a heating mode. According to different raw material components, common adhesive agents include silica gel heat vulcanization adhesive agent, rubber heat vulcanization adhesive agent, PU polyurethane heat vulcanization adhesive agent and the like.
In the technical scheme, the polyurethane layer and the non-metal material plate layer of the composite plate are bonded and fixed through the hot vulcanization adhesive, so that the polyurethane layer and the non-metal material plate layer form a whole, and therefore when a customer buys the anti-static polyurethane and non-metal material composite plate manufacturing jig, the composite plate can be directly cut into a corresponding shape according to needs, compared with the prior art, the operation of punching and screwing bolts is omitted, and the efficiency of manufacturing the jig is improved.
In a specific application example, the aforementioned polyurethane layer 1 may be a thermosetting polyurethane elastomer layer.
Thermoset polyurethane elastomers (thermoset polyurethane elastomers) may also be referred to as cast polyurethane prepolymers or cast polyurethane elastomers (CPUE). As the name implies, "casting" means that the material of the product before molding is liquid and can be cast. A liquid material is poured and then reacts and solidifies to directly form a product, which is a chemical processing method.
The thermosetting polyurethane elastomer is not melted after being heated after being formed, is decomposed under strong heat, has excellent physical properties, and particularly has good compression deformation performance at high temperature or low temperature.
The polyurethane layer 1 and the heat-curable adhesive 3 are both thermosetting, so that they can be cured by heating during processing, so that the polyurethane layer 1 is tightly fixed on the non-metallic material plate layer 2.
The non-metallic material slab layer 2 may be a glass fiber slab layer, an electric wood slab layer, or a stainless steel slab layer.
The nonmetal material plate layer 2 has excellent antistatic performance due to the inertia performance of the nonmetal material plate layer, and can provide antistatic protection for electronic components.
Further, as shown in fig. 2, the non-metallic material slab layer 2 may have convex points 21 or concave points on a surface thereof close to the polyurethane layer 1, so as to increase a contact area between the non-metallic material slab layer 2 and the heat-curable adhesive 3 and improve an adhesion effect.
Furthermore, the number of the convex points 21 or the concave points may be multiple, and the convex points or the concave points are uniformly distributed on the surface, close to the polyurethane layer 1, of the non-metal material plate layer 2, so that the contact area between the non-metal material plate layer 2 and the heat-vulcanization adhesive 3 is further increased, and the bonding effect is improved.
Furthermore, an inwards concave clamping groove 22 can be formed in one surface, close to the polyurethane layer 1, of the nonmetal material plate layer 2, and the polyurethane layer 1 is provided with a clamping part 11 clamped in the clamping groove 22.
Through above-mentioned technical scheme, the scheme of buckle portion 11 and draw-in groove 22 looks joint cooperates with aforementioned hot vulcanization adhesive 3, can further improve polyurethane layer 1 and nonmetal material sheet layer 2 both's stability of being connected, prevents that polyurethane layer 1 from droing from nonmetal material sheet layer 2.
In a specific application example, the aforementioned card slot 22 may be a dovetail slot. The dovetail of the dovetail groove has a limiting function, and the buckling part 11 on the polyurethane layer 1 can be prevented from falling off from the clamping groove 22.
Furthermore, the number of the clamping grooves 22 may be more than two, and the clamping grooves are sequentially distributed on the non-metal material plate layer 1 at intervals, so as to further improve the connection stability between the polyurethane layer 1 and the non-metal material plate layer 2.
The embodiment of the present invention further provides a jig, which may include the anti-static composite plate 100 made of polyurethane and non-metal material in any of the above examples.
In the above embodiment, the jig provided by the present invention has the advantage of short assembly time due to the arrangement of the above anti-static polyurethane and non-metal material composite plate 100.
As shown in fig. 3, an embodiment of the present invention further provides a process for preparing an anti-static composite plate made of polyurethane and a non-metal material, which may include the following steps:
step S1: and obtaining the non-metallic material plate. The non-metallic material plate can be a glass fiber plate, a bakelite plate, a stainless steel plate or the like.
The non-metallic material plate has excellent antistatic performance due to the inertia performance of the non-metallic material plate, and can provide antistatic protection for electronic components.
Step S2: a sheet of non-metallic material is coated on a first side with a heat-curable adhesive 3.
Step S3: and drying the nonmetal material plate coated with the hot vulcanization adhesive 3 in the step S2 to ensure that the hot vulcanization adhesive 3 is fixedly adhered to the first surface of the nonmetal material plate.
Step S4: and (5) placing the non-metal material plate bonded and fixed with the hot vulcanization adhesive 3 in the step (S3) into a mould, and pouring liquid polyurethane into the mould, wherein the liquid polyurethane is positioned on the side, away from the non-metal material plate, of the hot vulcanization adhesive 3, so as to form a liquid polyurethane layer 1.
And step S5, heating the inner part of the cavity of the die in the step S4 to enable the polyurethane layer 1 to be cured and molded on the nonmetal material plate. Specifically, the entire mold in step S4 may be placed in a vulcanizing furnace for thermosetting treatment.
Through foretell processing method, polyurethane layer 1 can be fixed on nonmetal material board through the bonding of hot vulcanization adhesive 3, polyurethane layer 1 and nonmetal material board form a whole, and its intensity is higher, and polyurethane layer 1 and nonmetal material board both the stability of being connected preferred, thereby when the customer is buying back and forming a holistic composite sheet preparation tool, can directly cut the composite sheet into corresponding shape as required can, for prior art, saved the operation of punching and screwing up the bolt, improved the efficiency of preparation tool.
Further, as shown in fig. 3, before step S2, the method further includes:
step S11: and roughening the first surface of the non-metallic material plate.
Step S12: and cleaning the roughened non-metallic material plate, and then drying.
Through the arrangement, the first surface of the non-metal material plate is rough, so that the contact area of the non-metal material plate and the hot vulcanization adhesive 3 can be increased, and the bonding effect is improved.
In a specific application example, the first surface of the non-metallic material plate may be roughened by grinding or sand blasting in step S11.
Further, the drying time in the step S3 may be 20 to 30 minutes. Preferably, the drying time in step S3 is 25 minutes, so that the hot-melt adhesive 3 can be cured on the nonmetal material plate without falling off.
Further, the heating temperature for the inside of the cavity of the mold in the step S5 may be 120-160 ℃, and the heating time is 8-12 hours.
Preferably, the heating temperature of the inside of the cavity of the mold in step S5 may be 140 degrees, and the heating time may be 10 hours.
Through the arrangement, the polyurethane layer 1 and the heat-vulcanization adhesive 3 can be sufficiently cured and molded, so that the polyurethane layer 1 is tightly fixed on the nonmetal material plate.
Further, the non-metallic material plate may be a glass fiber plate, a bakelite plate or a stainless steel plate.
The non-metallic material plate has excellent antistatic performance due to the inertia performance of the non-metallic material plate, and can provide antistatic protection for electronic components.
Further, the first surface of the non-metallic material plate may have convex points 21 or concave points to increase the contact area between the non-metallic material plate and the heat-curable adhesive 3, thereby improving the bonding effect.
Here, it should be noted that: in the case of no conflict, a person skilled in the art may combine the related technical features in the above examples according to actual situations to achieve corresponding technical effects, and details of various combining situations are not described herein.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (8)
1. The preparation process of the anti-static polyurethane and nonmetal material composite board is characterized by comprising the following steps of:
step S1: obtaining a non-metallic material plate;
step S2: coating a hot-vulcanised adhesive (3) on a first side of a sheet of non-metallic material;
step S3: drying the non-metal material plate coated with the hot vulcanization adhesive (3) in the step S2 to ensure that the hot vulcanization adhesive (3) is fixedly adhered to the first surface of the non-metal material plate;
step S4: placing the non-metal material plate bonded and fixed with the hot vulcanization adhesive (3) in the step S3 into a mold, and pouring liquid polyurethane into the mold, wherein the liquid polyurethane is positioned on the side, away from the non-metal material plate, of the hot vulcanization adhesive (3) to form a liquid polyurethane layer (1);
and step S5, heating the inner part of the cavity of the die in the step S4 to enable the polyurethane layer (1) to be solidified and molded on the nonmetal material plate.
2. The preparation process of the antistatic polyurethane and nonmetal material composite board according to claim 1,
before step S2, the method further includes:
step S11: roughening the first surface of the non-metallic material plate;
step S12: and cleaning the roughened non-metallic material plate, and then drying.
3. The preparation process of the antistatic polyurethane and nonmetal material composite board according to claim 2,
the first side of the sheet of non-metallic material is roughened by sanding or sandblasting in step S11.
4. The preparation process of the anti-static polyurethane and nonmetal material composite board according to any one of claims 1 to 3,
the drying time in step S3 is 20-30 minutes.
5. The preparation process of the anti-static polyurethane and nonmetal material composite board according to any one of claims 1 to 3,
in step S5, the polyurethane layer (1) is cured and molded on the non-metallic material sheet by placing the mold in a vulcanizing furnace and heating the inside of the cavity of the mold.
6. The preparation process of the anti-static polyurethane and nonmetal material composite board according to any one of claims 1 to 3,
in step S5, the heating temperature of the interior of the mold cavity of the mold is 120-160 ℃, and the heating time is 8-12 hours.
7. The preparation process of the anti-static polyurethane and nonmetal material composite board according to any one of claims 1 to 3,
the non-metallic material plate is a glass fiber plate, a bakelite plate or a stainless steel plate.
8. The preparation process of the anti-static polyurethane and nonmetal material composite board according to any one of claims 1 to 3,
the first surface of the non-metallic material plate is provided with convex points or concave points.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811077123.XA CN110900919A (en) | 2018-09-15 | 2018-09-15 | Preparation process of anti-static polyurethane and nonmetal material composite board |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811077123.XA CN110900919A (en) | 2018-09-15 | 2018-09-15 | Preparation process of anti-static polyurethane and nonmetal material composite board |
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| CN110900919A true CN110900919A (en) | 2020-03-24 |
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| CN201811077123.XA Pending CN110900919A (en) | 2018-09-15 | 2018-09-15 | Preparation process of anti-static polyurethane and nonmetal material composite board |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112571831A (en) * | 2020-11-24 | 2021-03-30 | 湖南中车弘辉科技有限公司 | Forming method of rubber-glass fiber reinforced plastic composite material product and product thereof |
-
2018
- 2018-09-15 CN CN201811077123.XA patent/CN110900919A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112571831A (en) * | 2020-11-24 | 2021-03-30 | 湖南中车弘辉科技有限公司 | Forming method of rubber-glass fiber reinforced plastic composite material product and product thereof |
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