CN105583987A - Manufacturing method for fiber-reinforced thermoplastic compression-molded product - Google Patents
Manufacturing method for fiber-reinforced thermoplastic compression-molded product Download PDFInfo
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- CN105583987A CN105583987A CN201511002174.2A CN201511002174A CN105583987A CN 105583987 A CN105583987 A CN 105583987A CN 201511002174 A CN201511002174 A CN 201511002174A CN 105583987 A CN105583987 A CN 105583987A
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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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
- B29C43/18—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. compression moulding 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
- B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
- B29C37/02—Deburring or deflashing
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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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
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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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/36—Moulds for making 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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/52—Heating or cooling
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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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/58—Measuring, controlling or regulating
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/14—Glass
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
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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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/58—Measuring, controlling or regulating
- B29C2043/5808—Measuring, controlling or regulating pressure or compressing force
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a manufacturing method for a fiber-reinforced thermoplastic compression-molded product. According to the method, glass fiber mixed with thermoplastic base materials such as PP and PE is taken as a raw material, and the fiber-reinforced thermoplastic compression-molded product is obtained through treatment such as crushing and mixing, high-temperature smelting, metering and weighing, compression molding and cooling and shaping. The interior of the compression-molded product is reinforced with an orthotropic steel reinforcement framework; and a steel reinforcement positioning mechanism in a mold realizes complete steel reinforcement coating, uniform left and right steel reinforcement coating, accurate positioning and controllable thickness. The method breaks through the traditional product in material and structure; the compression-molded product has the advantages of good toughness, light weight, convenience in construction, high bearing capacity and the like; and the method has a very wide development prospect and favorable economic and social benefits.
Description
Technical field
The present invention relates to a kind of manufacture method of pressing, especially a kind of manufacture method of fiber reinforced thermolplastic pressing.
Technical background
Along with the propelling of social development and urbanization process, the municipal works products such as well lid, tree guard, leaf grating for down pipe find broad application in urban planning, road construction, as public utilities such as running water, telecommunication power, combustion gas heating power, fire-fighting environmental sanitation. Municipal works product is in early days taking armored concrete material as main, but because its quality is heavy, not easy working defect, replaced gradually by cast iron quality; In recent years, because cast iron possesses recovery value, cause large-tonnage product to steal disappearance and cause security incident. At present, on market, taking staple glass fibre and unsaturated polyester resin (being called for short BMC), as the composite of representative, the product solidifying to form through mould heat pressure increases gradually. Its feature is: simple BMC material bearing capacity is inadequate, and in use broken easy fracture of product, needs to add framework of steel reinforcement as enhancing. Traditional BMC combined manhole cover inside is aided with framework of steel reinforcement and strengthens, conventionally there are three obvious shortcomings: 1) because framework of steel reinforcement is placed in cavity bottom in mould in advance, in the time of compacting, BMC material is very difficult completely coated by reinforcing bar, causes reinforcing steel bars exposed, and producing rusty stain affects serviceability; 2) composite and reinforcing bar need bear larger pressure in the time of mould matched moulds, and in this process, even distortion of skew can occur reinforcing bar, cause the coated inhomogeneous or reinforcing bar back bending of material and the stress deformation that produces product; 3) reinforcing bar produces random movement with the increase of clamping pressure in mould, adopts traditional BMC material cladding reinforcing steel bar technique, needs larger width surplus to guarantee material cladding reinforcing steel bar completely in structural design. Therefore, there is coated raw-material waste in this technique, and the built-in built-in fitting of product such as cannot locate comparatively accurately at the problem. Chinese patent CN104099949A, discloses a kind of ductile cast iron manhole cover and preparation method thereof, adopts V method mould structure, reduces design and difficulty of processing, steals disappearance drawback but cannot thoroughly solve this material. In addition, silicon molding product adopts thermoplastic matrix, is aided with each cheap filling mixture mold pressing and makes. This product is because base material exists larger cooling shrinkage factor, and approximately 2～2.6%, if adopt framework of steel reinforcement to strengthen, the shrinkage factor between reinforcing bar and base material exists and causes product gross distortion compared with large gap, strengthens therefore cannot realize framework of steel reinforcement at interiors of products.
In sum, heavy, the difficult construction of conventional steel reinforced concrete material quality; Irony product is lost and is caused the accident because pilferage problem is easy; There is broken easy fracture in composite thermosetting product; Silicon molding product, because base material shrinkage factor is large, cannot be aided with in inside reinforcing bar and strengthen. Many defects that these exist in application, never by fine solution. Develop a kind of municipal works product of new material, the great number of issues that solves above-mentioned traditional material existence is that current research institute needs the urgent problem solving.
Summary of the invention
The object of the invention is: the products such as a kind of manufacture method of fiber reinforced thermolplastic pressing, particularly well lid, tree guard, leaf grating for down pipe are provided. Its beneficial effect is, the municipal works product that utilizes fibre-reinforced thermoplastic to produce, the advantage such as compared with other material products, have that good toughness, quality are light, easily construction, bearing capacity are strong; Can effectively solve the defects such as conventional composite materials interiors of products reinforcing bar covered effect is poor, positioning distortion, clad material waste, especially can solve the problem of BMC material brittle easy fracture.
The technical scheme that the present invention adopts for realizing above-mentioned technical purpose: as shown in Fig. 1～4, a kind of manufacture method of fiber reinforced thermolplastic pressing, it is characterized in that, with PP, the thermoplastic matrix mixing glasses such as PE are raw material, mix through fragmentation, high-temperature fusion, computation weigh, compression molding, cooling and shaping processing obtains fiber reinforced thermolplastic pressing, the framework of steel reinforcement that described pressing inside is aided with Orthotropic Structures strengthens, mould inside arranges reinforcing bar location structure, described method comprises step specific as follows: step 1, Mechanical Crushing: the block raw material that book size is greater than to given size is sent into pulverizer and carried out fragmentation, obtain length 2～30mm, the broken raw material of width 1～20mm,
Step 2, computation weigh: the raw material after weighing is sent into extruder or multi-daylight press carries out heating and melting, make raw material possess the mobility of requirement, 120 DEG C～280 DEG C of hot melting temperatures; Step 3, heating and melting: take quantitative raw material according to product small product size and raw material density; Step 4, compression molding: the raw material under molten condition is put into mould through mating formation, in mould, place the enhancing skeleton of Orthotropy shape structure, compression molding obtains goods, described product surface alternative is with three-dimensional decorative property decorative pattern or art pattern, briquetting pressure 5Mpa～25Mpa, dwell time 30S～720S; Step 5, cooling and shaping: the idiosome of compression molding in step 4 is put into fixing cooling frock and do cooling and shaping processing, according to described products thickness and book size, control 1min～120min cool time, cooling pressure 3-800T; Step 6, sanding deburring: described goods complete cooling and shaping are carried out to sanding and remove edge flash, overlap, the smooth later stage decoration of being convenient to of described product surface is painted; Step 7, incrustation: the described goods after deburring first do surface treatment with thermoplastic transparent priming, more described product surface is done to paint for decoration.
In technique scheme, preferred, the raw material that in described step 1, thermoplastic obtains through Mechanical Crushing contain or sneak into glass fibre mass fraction 5～50%, Length of Glass Fiber 2～60mm, contractibility when reducing thermoplastic matrix cooling and shaping.
In technique scheme, preferably, in described step 4, top mold surface is provided with product decorative pattern depiction, bed die arranges Orthotropic Structures groove, described mold, bed die are by guide-localization mechanism matched moulds, described reinforcing bar location structure is arranged in described structure grooves, and described reinforcing bar location structure lower end is convinced groove by patient analysis, described mold, bottom mold surface chromium plating.
In technique scheme, preferred, described structure grooves can be one or both of U-shaped or V-type, and the width of described structure grooves is 6～50mm, and the degree of depth is 5～70mm.
In technique scheme, preferred, described reinforcing bar location structure can be one or more of spaced set or unequal-interval setting.
In technique scheme, preferred, described reinforcing bar location structure A/F is 4～32mm.
In technique scheme, preferred, described conduction trough width is 2～26mm, and the degree of depth is 2～45mm.
In technique scheme, preferred, described framework of steel reinforcement diameter is φ 4～φ 36mm.
In technique scheme, preferred, in described step 5, special cooling frock is water spray, and metal die and shape of product size kissing merge to adopt piles high placement.
In technique scheme, preferred, in described step 7, product surface is decorated, adopt pottery paint, acrylic acid floor paint, aqueous environment protection paint etc.
In sum, the manufacture method of a kind of fiber reinforced thermolplastic pressing provided by the invention, with PP, the thermoplastic matrix composite fibre such as PE are raw material, raw material is carried out to fragmentation to be mixed, send into extruder or the processing of multi-daylight press high-temperature fusion, take appropriate raw material by product small product size and raw material density, the raw material of molten condition is sent in the mould that is placed with in advance fiber web frame, compression molding obtains municipal works based article, its surface is optionally with ornamental decorative pattern or the art pattern of solid, carry out sanding and deburring processing through cooling and shaping and to its surface, after incrustation and inspection, obtain municipal works product, especially well lid, tree guard, the products such as leaf grating for down pipe. wherein, with PP, the thermoplastic matrix composite fibre such as PE are raw material, solve the shrinkage factor difference between thermoplastic matrix and reinforcing steel bar skeleton, guarantee that product size is stable, and solve framework of steel reinforcement with the Overmolded process of raw material in embedded bar accurately locate, clad material is fixed thick is innovation of the present invention, drop into a large amount of manpowers, material resources, this technique is the long-term research practice of the inventor in municipal works goods processing technique field, and the one of exploring in conjunction with the deficiencies in the prior art can effectively improve product mechanical property, save material, make it meet the inventive result of actual production and application.
Compared with the preparation method of existing conventional articles, advantage of the present invention is specific as follows:
1) thermoplastic of raw material choose taking PP, PE mixing glass as representative, its good toughness, quality are light, have solved that traditional municipal works goods fragility is large, the shortcoming of easy fracture; 2) select thermoplastic, pressing, without recovery value, has solved from root loss and the safety problem that traditional municipal works goods cause because stealing disappearance, saves manufacturing cost; 3) the present invention adds glass fiber component in raw material, can effectively solve the large technical barrier of shrinkage factor that thermoplastic matrix exists in cooling and shaping process, make the framework of steel reinforcement of Orthotropic Structures be applied in thermoplastic and not produce distortion; 4) reinforcing bar of the present invention strengthens thermoplasticity pressing mould, can effectively solve the defects such as the coated reinforcing bar covered effect existing of conventional composite materials reinforcing bar is poor, positioning distortion, clad material waste by mould positioning mechanism, realize that reinforcing bar is coated complete, left and right evenly, accurate positioning, the controlled remarkable advantage of thickness; 5) the present invention can be achieved by reclaiming waste and old thermoplastic material, even can process remaining solid waste by automobile industry and obtain, and has realized the recycling utilization of industrial resources, meets national macro policy and following main trend developing direction.
Therefore, the goods and the manufacture method thereof that are aided with fiber reinforcement compression molding of joining with thermoplastic provided by the invention, selection and the structure of conventional articles are broken through, the advantage such as have that good toughness, quality are light, easy construction, bearing capacity are strong, has very vast potential for future development and good economic and social profit.
Brief description of the drawings
Fig. 1 pressing process chart.
Fig. 2 upper die structure schematic diagram.
Fig. 3 bed die Orthotropic Structures groove and reinforcing bar location structure figure.
Fig. 4 Orthotropic Structures groove and the horizontal part sectioned view of reinforcing bar location structure.
Orthotropic Structures groove and the longitudinal part sectioned view of reinforcing bar location structure under Fig. 5.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in further detail, it is pointed out that the following stated embodiment is intended to be convenient to the understanding of the present invention, and it is not played to any restriction effect.
Embodiment 1
As shown in Fig. 1～4, a kind of manufacture method of fiber reinforced thermolplastic pressing is to justify well as example, its diameter 500mm, thickness 35mm, surface has ornamental decorative pattern, and it is as follows that it manufactures process: step 1, Mechanical Crushing: the block raw material that book size is greater than to given size is sent into pulverizer and carried out fragmentation, obtains length 3～16mm, width 4～12mm raw material, glass mass fraction is 25%, Length of Glass Fiber 10～25mm; Step 2, computation weigh: the raw material after weighing is sent into extruder or multi-daylight press carries out heating and melting, make raw material possess the mobility of requirement, 120 DEG C～140 DEG C of hot melting temperatures; Step 3, heating and melting: according to well lid size, take 17kg raw material; Step 4, compression molding: the raw material under molten condition is put into mould through mating formation, mould inside is placed Orthotropy shape structural reinforcing skeleton. Compression molding obtains well lid, and its surface is optionally with three-dimensional decorative property decorative pattern or art pattern. Select reinforcing bar to do enhancing skeleton herein, specification is φ 14, briquetting pressure 15Mpa～20Mpa, dwell time 160s; Step 5, cooling and shaping: the idiosome of compression molding in step 4 is put into fixing cooling frock and do cooling and shaping processing, according to described products thickness and book size, control 20min cool time, cooling pressure 250T; Step 6, sanding deburring: described goods complete cooling and shaping are carried out to sanding and remove edge flash, overlap, the smooth later stage decoration of being convenient to of described product surface is painted; Step 7, incrustation: the described goods after deburring first do surface treatment with thermoplastic transparent priming, more described product surface is done to paint for decoration can be pottery paint, acrylic acid floor paint, aqueous environment protection paint etc.
In described step 4, mold 1 surface is provided with product decorative pattern depiction, bed die 4 arranges Orthotropic Structures groove 3, described mold 1, bed die 4 are by guide-localization mechanism 2 matched moulds, described reinforcing bar location structure 5 is arranged in described structure grooves 3, described reinforcing bar location structure 5 lower ends are convinced groove 6 by patient analysis, described mold 1, bed die 4 chrome-faceds.
Described structure grooves 3 is U-shaped, and width is 25mm, and the degree of depth is 45mm.
Described reinforcing bar location structure 5 is U-shaped, and spacing is quartering setting.
Described reinforcing bar location structure 5 A/Fs are 15mm.
Described conduction trough 6 width are 6mm, and the degree of depth is 15mm.
Described framework of steel reinforcement diameter is φ 14mm.
In described step 5, special cooling frock is water spray, and metal die and shape of product size kissing merge to adopt piles high placement.
The well lid that above-described embodiment 1 makes can be used for residential quarters, greenbelt.
Embodiment 2
As shown in Fig. 1～4, a kind of manufacture method of fiber reinforced thermolplastic pressing is to justify well as example, its diameter 700mm, thickness 70mm, surface has ornamental decorative pattern, and it is as follows that it manufactures process: step 1, Mechanical Crushing: the block raw material that book size is greater than to given size is sent into pulverizer and carried out fragmentation, obtains length 5～8mm, width 2～6mm raw material, glass mass fraction 45%, Length of Glass Fiber 20～30mm; Step 2, computation weigh: the raw material after weighing is sent into extruder or multi-daylight press carries out heating and melting, make raw material possess certain mobility. Between 180 DEG C～200 DEG C of hot melting temperatures; Step 3, heating and melting: according to well lid size, take 28kg raw material; Step 4, compression molding: the raw material under molten condition is put into mould through mating formation, mould inside is placed Orthotropy shape structural reinforcing skeleton. Compression molding obtains well lid, and its surface is optionally with three-dimensional decorative property decorative pattern or art pattern. Select reinforcing bar to do enhancing skeleton herein, specification is φ 20, briquetting pressure 22Mpa～25Mpa, dwell time 240s;Step 5,Cooling and shaping: the idiosome of compression molding in step 4 is put into fixing cooling frock and do cooling and shaping processing, according to product thickness and book size;Step 6,Sanding deburring: goods complete cooling and shaping are carried out to sanding and remove its edge flash, overlap, make its smooth surface be convenient to the decoration colouring in later stage; Step 5, cooling and shaping: the idiosome of compression molding in step 4 is put into fixing cooling frock and does cooling and shaping processing, according to described products thickness and book size, cool time 40min, cooling pressure 500T; Step 6, sanding deburring: described goods complete cooling and shaping are carried out to sanding and remove edge flash, overlap, the smooth later stage decoration of being convenient to of described product surface is painted; Step 7, incrustation: the described goods after deburring first do surface treatment with thermoplastic transparent priming, more described product surface is done to paint for decoration can be pottery paint, acrylic acid floor paint, aqueous environment protection paint etc.
In described step 4, mold 1 surface is provided with product decorative pattern depiction, bed die 4 arranges Orthotropic Structures groove, described mold 1, bed die 4 are by guide-localization mechanism 2 matched moulds, described reinforcing bar location structure 5 is arranged at described structure grooves interior 3, described reinforcing bar location structure 5 lower ends are convinced groove 6 by patient analysis, described mold 1, bed die 4 chrome-faceds.
Described structure grooves 3 is V-type.
The width of described structure grooves 3 is 40mm, and the degree of depth is 60mm.
Described reinforcing bar location structure 5 can be U-shaped, and spacing is quartering setting.
Described reinforcing bar location structure 5 A/Fs are 22mm.
Described conduction trough 6 width are 12mm, and the degree of depth is 20mm.
Described framework of steel reinforcement diameter is φ 20mm.
In described step 5, special cooling frock is water spray, and metal die and shape of product size kissing merge to adopt piles high placement.
The well lid that above-described embodiment 2 makes can be used for the region that Residential Area, pavement etc. forbid that motor vehicles sail into.
Above-described embodiment has been described in detail technical scheme of the present invention; be understood that and the foregoing is only specific embodiments of the invention; be not limited to the present invention; all any amendments of making within the scope of principle of the present invention, supplement or similar fashion substitute etc., within all should being included in protection scope of the present invention.
Claims (9)
1. the manufacture method of a fiber reinforced thermolplastic pressing, it is characterized in that, taking the thermoplastic matrix such as PP, PE mixing glass as raw material, obtain fiber reinforced thermolplastic pressing through fragmentation mixing, high-temperature fusion, computation weigh, compression molding, cooling and shaping processing, the framework of steel reinforcement that described pressing inside is aided with Orthotropic Structures strengthens, mould inside arranges reinforcing bar location structure (5), and described method comprises step specific as follows:
Step 1, Mechanical Crushing: the block raw material that book size is greater than to given size is sent into pulverizer and carried out fragmentation, obtains length 2～30mm, the broken raw material of width 1～20mm;
Step 2, computation weigh: the raw material after weighing is sent into extruder or multi-daylight press carries out heating and melting, make raw material possess the mobility of requirement, 120 DEG C～280 DEG C of hot melting temperatures;
Step 3, heating and melting: take quantitative raw material according to product small product size and raw material density;
Step 4, compression molding: the raw material under molten condition is put into mould through mating formation, in mould, place the enhancing skeleton of Orthotropy shape structure, compression molding obtains goods, described product surface has three-dimensional decorative property decorative pattern or art pattern, briquetting pressure 5Mpa～25Mpa, dwell time 30S～720S;
Step 5, cooling and shaping: the idiosome of compression molding in step 4 is put into fixing cooling frock and do cooling and shaping processing, according to described products thickness and book size, control 1min～120min cool time, cooling pressure 3～800T;
Step 6, sanding deburring: described goods complete cooling and shaping are carried out to sanding and remove edge flash, overlap, the smooth later stage decoration of being convenient to of described product surface is painted;
Step 7, incrustation: the described goods after deburring first do surface treatment with thermoplastic transparent priming, more described product surface is done to paint for decoration.
2. the manufacture method of a kind of fiber reinforced thermolplastic pressing according to claim 1, it is characterized in that, the raw material that in described step 1, thermoplastic obtains through Mechanical Crushing contain or sneak into glass fibre mass fraction 5～50%, Length of Glass Fiber 2～60mm.
3. the manufacture method of a kind of fiber reinforced thermolplastic pressing according to claim 1, it is characterized in that: mold in described step 4 (1) surface is provided with product decorative pattern depiction, bed die (4) arranges Orthotropic Structures groove (3), described mold (1), bed die (4) are by guide-localization mechanism (2) matched moulds, described reinforcing bar location structure (5) is arranged in described structure grooves (3), described reinforcing bar location structure (5) lower end is convinced groove (6) by patient analysis, described mold (1), bed die (4) chrome-faced.
4. the manufacture method of a kind of fiber reinforced thermolplastic pressing according to claim 3, is characterized in that: described structure grooves (3) is U-shaped or V-type, and the width of described structure grooves (3) is 6～50mm, and the degree of depth is 5～70mm.
5. according to the manufacture method of a kind of fiber reinforced thermolplastic pressing described in claim 1 or 3, it is characterized in that: described reinforcing bar location structure (5) A/F is 4～32mm.
6. the manufacture method of a kind of fiber reinforced thermolplastic pressing according to claim 3, is characterized in that: described conduction trough (6) width is 2～26mm, and the degree of depth is 2～45mm.
7. the manufacture method of a kind of fiber reinforced thermolplastic pressing according to claim 1, is characterized in that: in described framework of steel reinforcement strengthens, bar diameter is φ 4～φ 36mm.
8. the manufacture method of a kind of fiber reinforced thermolplastic pressing according to claim 1, is characterized in that: in described step 5, special cooling frock is water spray, and metal die and shape of product size kissing merge to adopt piles high placement.
9. the manufacture method of a kind of fiber reinforced thermolplastic pressing according to claim 1, is characterized in that, in described step 7, product surface is provided with to decorative layer, and described decorative layer is pottery paint, acrylic acid floor paint or aqueous environment protection paint.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110241861A (en) * | 2019-07-31 | 2019-09-17 | 盐城高科道路设施有限公司 | A kind of imitative copper well lid production technology of cast iron |
| CN110480973A (en) * | 2019-08-29 | 2019-11-22 | 江苏新宏大集团有限公司 | A kind of production method of the modified reinforced polypropylene filter plate of high-content roving glass fiber |
| CN114434715A (en) * | 2022-01-26 | 2022-05-06 | 山东宝盖新材料科技股份有限公司 | Composite resin cover plate production device |
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| CN2753801Y (en) * | 2004-11-29 | 2006-01-25 | 周虹 | Steel plate frame polyester glass fibre reinforced composite material manhole cover |
| CN201202123Y (en) * | 2008-01-09 | 2009-03-04 | 邵世乐 | Resin-based high polymer composite well lid |
| CN102660964A (en) * | 2012-05-21 | 2012-09-12 | 大庆市海钰金属制品有限公司 | Unsaturated resin well utensil and manufacturing method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110241861A (en) * | 2019-07-31 | 2019-09-17 | 盐城高科道路设施有限公司 | A kind of imitative copper well lid production technology of cast iron |
| CN110241861B (en) * | 2019-07-31 | 2021-06-08 | 盐城高科道路设施有限公司 | Production process of cast iron copper-imitation well cover |
| CN110480973A (en) * | 2019-08-29 | 2019-11-22 | 江苏新宏大集团有限公司 | A kind of production method of the modified reinforced polypropylene filter plate of high-content roving glass fiber |
| CN114434715A (en) * | 2022-01-26 | 2022-05-06 | 山东宝盖新材料科技股份有限公司 | Composite resin cover plate production device |
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