CN104228084A - Compression molding forming method of plastic plate containing fiber net - Google Patents
Compression molding forming method of plastic plate containing fiber net Download PDFInfo
- Publication number
- CN104228084A CN104228084A CN201310254952.1A CN201310254952A CN104228084A CN 104228084 A CN104228084 A CN 104228084A CN 201310254952 A CN201310254952 A CN 201310254952A CN 104228084 A CN104228084 A CN 104228084A
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- CN
- China
- Prior art keywords
- plastic
- rubber
- plastic plate
- fiber net
- fleece
- 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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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
- B29B9/02—Making granules by dividing preformed material
- B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
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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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete 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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
Abstract
The invention relates to a compression molding forming method of a plastic plate containing a fiber net. The compression molding forming method is characterized by fixing the fiber net on the surface of an upper die and/or a lower die of a mould pressing die and embedding the fiber net in the plastic plate by virtue of concave-convex lines on the surface of the die, so that the fiber floating condition when the fiber net is fixed on the surface of the upper die and/or the lower die by a conventional method can be avoided, so that the service life of the plastic plate is prolonged; meanwhile, the method is also capable of tensioning the fiber net during forming the plastic plate, so that the strength of the plastic plate is ensured; in addition, the fiber net is embedded in the single plastic material, but not fixed on the plastic plate by virtue of manners of adhesion and the like, so that the two sides of the fiber net are made of the same material, and thus the problem that the interface is stripped in the conventional manners of adhesion, fixation and the like is avoided; the strength of the produced plastic plate is improved; the plastic plate produced by the method can be used as a building template.
Description
Technical field
The present invention relates to composite and building template manufacture field, be specifically related to a kind of Plastic rubber plate mould transfer moulding method of fibre-bearing net.
Background technology
The building template that current construction adopts mainly comprises wooden, bamboo matter, steel, plastic building template and by several complex architectural templates be composited in above-mentioned building template.Although steel building template is firm, access times are high, large, the difficult transport of high, the easy rust of cost, weight; Bamboo matter, Wood construction formwork are lightweight, plate fabric width, piece are few, but intensity is relatively low, and not damp proof waterproof, easily goes mouldy rotten, and consume green resource; Plastic building template has the advantage of higher, stainless, the not sticky cement of low, lightweight, the reusable number of times of cost, waterproof.The production method of plastic building template can be divided into continous way production, discontinuous is produced; Although wherein discontinuous production method is not as good as continuous production method in production efficiency, can workman be arranged flexibly to produce.
Common discontinuous production method comprises compression molding method.But existing compression-moulding methods only can be used for the compression molding of fiberglass reinforced plastics, if application number is a kind of building template disclosed in the Chinese patent of 200810062756.3 and preparation method thereof.But in the method, fortifying fibre is discrete state, it strengthens fiber mesh cloth that effect can check and balance far away from transverse and longitudinal as the enhancing effect of fiberglass gridding cloth.Although the fleeces such as fiberglass gridding cloth can be arranged in the inner chamber of molding die, make together with fleece is molded over the plastic rubber material clamp-oning mould, thus form the plastic plate of fibre-bearing net, but the method for routine can only realize fleece fixing on plastic plate surface, therefore plastic plate surface easily occurs floating fine, the fleece fracture easy to wear on this building template surface in repeatedly using, causes the intensity of building template to decline to a great extent, affects service life.And can fleece realize tensioning in plastic plate inside, also drastically influence intensity and the life-span of building template.
Therefore, how realized the production of the plastic plate of fibre-bearing net by compression molding, this is the key technical problem that building template manufactures field.
Summary of the invention
The technical issues that need to address of the present invention are the Plastic rubber plate mould transfer moulding method providing a kind of fibre-bearing net.
The technical issues that need to address of the present invention are achieved through the following technical solutions:
A Plastic rubber plate mould transfer moulding method for fibre-bearing net, comprises the following steps: plastic rubber material is added melt blending in extruder, obtains the melt plastic cement material of 260 ~ 295 DEG C, and extrudes from extruder; The melt plastic cement extruded is anticipated after weighing, join patrix and/or counterdie inner surface is provided with concave convex texture and presets in fibroreticulate molding die, mold temperature is 30 ~ 60 DEG C, 30 ~ 80MPa shaped under pressure 2 ~ 10 minutes, makes fleece embed in melt plastic cement material; Subsequently, the plastic plate after sizing is cooled to normal temperature, the demoulding deburring, obtains the plastic plate of fibre-bearing net.
Preferably, by backstay in described molding die location, tensioning being preset in described molding die in the mode of fit described patrix and/or counterdie inner surface.
Further preferably, described concave convex texture is stripe or waveform concave convex texture.
Still more preferably, described fleece is one or both in glass fiber mesh, carbon fibre web, aramid fiber net, non-woven fabric net and metal web.
Preferably, the preparation method of described plastic rubber material is:
S1. by waste or used plastics through double screw extruder melting, extrude, cool, pelletizing uniformly plastic grain;
S2. waste old is broken into rubber grain and/or rubber powder;
S3. rubber grain and/or rubber powder are mixed with the auxiliary agent accounting for rubber weight 1 ~ 15%, obtain the mixture of rubber and auxiliary agent;
S4. the mixture of rubber and auxiliary agent is extruded from head after mixing facilities is mixing, pelletizing, obtain the modified rubber material of 1 ~ 7cm size;
S5., after modified rubber material and plastic grain being measured according to the weight ratio of 18 ~ 35:65 ~ 82, join Homogeneous phase mixing in mixing machine and drying, obtain described plastic rubber material.
Compared with prior art, the Plastic rubber plate mould transfer moulding method of fibre-bearing net of the present invention has the following advantages: compression-moulding methods of the present invention is by being fixed on patrix in molding die and/or counterdie surface by fleece, by the concave convex texture of die surface, fleece is embedded in plastic plate, avoid the floating fine phenomenon occurred when utilizing conventional method fleece to be fixed on patrix and/or counterdie surface, thus improve the service life of plastic plate.Meanwhile, fleece is embedded in single plastic rubber material, but not fixed by the mode such as bonding and plastic plate, and therefore fibroreticulate both sides are material of the same race, avoid the interface peel problem occurred in the modes such as tradition is adhesively fixed.The plastic plate that the inventive method is produced can be used as building template etc.
Accompanying drawing explanation
Fig. 1 is the principle schematic be embedded into by fleece in compression-moulding methods of the present invention in plastic plate.
In figure: 1, plastic rubber material; 2, fleece; 3, patrix; 4, counterdie; 5, backstay; 34, protruding; 43, groove.
Detailed description of the invention
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described further.Following examples only for technical scheme of the present invention is clearly described, and can not limit the scope of the invention with this.
The present invention is a kind of Plastic rubber plate mould transfer moulding method of fibre-bearing net, comprises the following steps:
S1. by waste or used plastics through double screw extruder melting, extrude, cool, pelletizing uniformly plastic grain;
S2. waste old is broken into rubber grain and/or rubber powder;
S3. rubber grain and/or rubber powder are mixed with the auxiliary agent accounting for rubber weight 1 ~ 15%, obtain the mixture of rubber and auxiliary agent;
S4. the mixture of rubber and auxiliary agent is extruded from head after mixing facilities is mixing, pelletizing, obtain the modified rubber material of 1 ~ 7cm size;
S5., after modified rubber material and plastic grain being measured according to the weight ratio of 18 ~ 35:65 ~ 82, join Homogeneous phase mixing in mixing machine and drying, obtain plastic rubber material;
S6. plastic rubber material is added melt blending in extruder, obtain the melt plastic cement material of 260 ~ 295 DEG C;
S7. fleece is preset in molding die, by backstay in molding die location, tensioning the patrix of molding die of fitting and/or the inner surface of counterdie, here the inner surface of patrix and/or counterdie is provided with concave convex texture, and concave convex texture is preferably stripe or waveform concave convex texture;
S8. the melt plastic cement extruded is anticipated heavy after, join in molding die, mold temperature is 30 ~ 60 DEG C, 30 ~ 80MPa shaped under pressure 2 ~ 10 minutes, makes fleece embed in melt plastic cement material;
S9. after the plastic plate after sizing being cooled to normal temperature, the demoulding;
S10. deburring, obtains the plastic plate of fibre-bearing net.
In the above-mentioned methods, fleece is one or both in glass fiber mesh, carbon fibre web, aramid fiber net, non-woven fabric net and metal web.If the inner surface of upper die and lower die is all fitted with fleece, then the plastic plate obtained is embedded with two layer web.If only the inner surface of patrix or counterdie is fitted with fleece, then the plastic plate obtained is embedded with one deck fleece.
Realize by this molding die the principle that fleece is embedded into plastic plate to be: patrix 3 and/or counterdie 4 inner surface have concave convex texture, are such as striped or waveform concave convex texture; As shown in Figure 1, fleece 2, by certain positioner, as backstay 5, realizes tensioning; This just makes the projection 34 of patrix 3 and/or counterdie 4 inner surface fleece jack-up can be departed from the bottom groove 43 of patrix 3 and/or counterdie 4, when melt plastic cement material 1 enters molding die, through the grid of fleece 2, arrive the bottom groove 43 of patrix 3 and/or counterdie 4, thus make fleece 2 be embedded in plastic rubber material 1, after cooling, just obtain and be embedded with fibroreticulate plastic plate, avoid floating fine.Although the fleece being arranged in mould high spot can not be embedded into melt plastic cement material completely, but for the plastic plate after shaping, failing the fleece partial points be embedded into completely in melt plastic cement material is positioned at the groove on plastic plate surface, be not vulnerable to wearing and tearing in use, therefore can not affect the service life of plastic plate yet.
By the inventive method, the plastic plate as building template can be produced.
Above-mentioned each embodiment is to the preferred embodiment of the present invention.It should be pointed out that for those skilled in the art, under the prerequisite not departing from the technology of the present invention principle, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (5)
1. a Plastic rubber plate mould transfer moulding method for fibre-bearing net, is characterized in that comprising the following steps: plastic rubber material is added melt blending in extruder, obtains the melt plastic cement material of 260 ~ 295 DEG C, and extrudes from extruder; The melt plastic cement extruded is anticipated after weighing, join patrix and/or counterdie inner surface is provided with concave convex texture and presets in fibroreticulate molding die, mold temperature is 30 ~ 60 DEG C, 30 ~ 80MPa shaped under pressure 2 ~ 10 minutes, makes fleece embed in melt plastic cement material; Subsequently, the plastic plate after sizing is cooled to normal temperature, the demoulding deburring, obtains the plastic plate of fibre-bearing net.
2. compression-moulding methods as claimed in claim 1, is characterized in that: described fleece is by the backstay location in described molding die, tensioning being preset in described molding die in the mode of fit described patrix and/or counterdie inner surface.
3. compression-moulding methods as claimed in claim 2, is characterized in that: described concave convex texture is stripe or waveform concave convex texture.
4. compression-moulding methods as claimed in claim 3, is characterized in that: described fleece is one or both in glass fiber mesh, carbon fibre web, aramid fiber net, non-woven fabric net and metal web.
5. the compression-moulding methods as described in Claims 1-4 any one, is characterized in that: the preparation method of described plastic rubber material is:
S1. by waste or used plastics through double screw extruder melting, extrude, cool, pelletizing uniformly plastic grain;
S2. waste old is broken into rubber grain and/or rubber powder;
S3. rubber grain and/or rubber powder are mixed with the auxiliary agent accounting for rubber weight 1 ~ 15%, obtain the mixture of rubber and auxiliary agent;
S4. the mixture of rubber and auxiliary agent is extruded from head after mixing facilities is mixing, pelletizing, obtain the modified rubber material of 1 ~ 7cm size;
S5., after modified rubber material and plastic grain being measured according to the weight ratio of 18 ~ 35:65 ~ 82, join Homogeneous phase mixing in mixing machine and drying, obtain described plastic rubber material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310254952.1A CN104228084A (en) | 2013-06-24 | 2013-06-24 | Compression molding forming method of plastic plate containing fiber net |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310254952.1A CN104228084A (en) | 2013-06-24 | 2013-06-24 | Compression molding forming method of plastic plate containing fiber net |
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| CN104228084A true CN104228084A (en) | 2014-12-24 |
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| CN201310254952.1A Pending CN104228084A (en) | 2013-06-24 | 2013-06-24 | Compression molding forming method of plastic plate containing fiber net |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105398428A (en) * | 2015-12-16 | 2016-03-16 | 苏州银雀智能科技有限公司 | Braking vane provided with rubber embosses and application method of braking vane |
| CN105438142A (en) * | 2015-12-16 | 2016-03-30 | 苏州银雀智能科技有限公司 | Rubber braking plate and manufacturing method thereof |
| CN105438143A (en) * | 2015-12-16 | 2016-03-30 | 苏州银雀智能科技有限公司 | Rubber braking plate and using method thereof |
| CN105501197A (en) * | 2015-12-16 | 2016-04-20 | 苏州银雀智能科技有限公司 | Braking vane provided with rubber bumps and manufacture method of braking vane |
-
2013
- 2013-06-24 CN CN201310254952.1A patent/CN104228084A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105398428A (en) * | 2015-12-16 | 2016-03-16 | 苏州银雀智能科技有限公司 | Braking vane provided with rubber embosses and application method of braking vane |
| CN105438142A (en) * | 2015-12-16 | 2016-03-30 | 苏州银雀智能科技有限公司 | Rubber braking plate and manufacturing method thereof |
| CN105438143A (en) * | 2015-12-16 | 2016-03-30 | 苏州银雀智能科技有限公司 | Rubber braking plate and using method thereof |
| CN105501197A (en) * | 2015-12-16 | 2016-04-20 | 苏州银雀智能科技有限公司 | Braking vane provided with rubber bumps and manufacture method of braking vane |
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Application publication date: 20141224 |