CN103101164A - Production process and device of PC (poly carbonate) raw material sheet material - Google Patents
Production process and device of PC (poly carbonate) raw material sheet material Download PDFInfo
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- CN103101164A CN103101164A CN2012105397403A CN201210539740A CN103101164A CN 103101164 A CN103101164 A CN 103101164A CN 2012105397403 A CN2012105397403 A CN 2012105397403A CN 201210539740 A CN201210539740 A CN 201210539740A CN 103101164 A CN103101164 A CN 103101164A
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- 239000000463 material Substances 0.000 title claims abstract description 81
- 239000002994 raw material Substances 0.000 title claims abstract description 55
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 33
- 239000004417 polycarbonate Substances 0.000 title abstract 12
- 229920000515 polycarbonate Polymers 0.000 title abstract 12
- 238000000034 method Methods 0.000 claims abstract description 46
- 238000010438 heat treatment Methods 0.000 claims abstract description 22
- 239000004033 plastic Substances 0.000 claims abstract description 19
- 229920003023 plastic Polymers 0.000 claims abstract description 19
- 238000007493 shaping process Methods 0.000 claims abstract description 15
- 238000000465 moulding Methods 0.000 claims description 27
- 238000001816 cooling Methods 0.000 claims description 21
- 238000002844 melting Methods 0.000 claims description 21
- 230000008018 melting Effects 0.000 claims description 21
- 230000008569 process Effects 0.000 claims description 20
- 230000009467 reduction Effects 0.000 claims description 17
- 230000006835 compression Effects 0.000 claims description 16
- 238000007906 compression Methods 0.000 claims description 16
- 238000005516 engineering process Methods 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 230000009183 running Effects 0.000 claims description 9
- 235000009165 saligot Nutrition 0.000 claims description 9
- 235000013599 spices Nutrition 0.000 claims description 9
- 238000001125 extrusion Methods 0.000 claims description 8
- 230000001105 regulatory effect Effects 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 5
- 235000021050 feed intake Nutrition 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000001276 controlling effect Effects 0.000 claims description 3
- 230000005674 electromagnetic induction Effects 0.000 claims description 3
- 125000003003 spiro group Chemical group 0.000 claims description 3
- 239000007858 starting material Substances 0.000 claims description 3
- 244000017160 saligot Species 0.000 claims 1
- 238000005520 cutting process Methods 0.000 abstract description 3
- 238000003756 stirring Methods 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 abstract description 2
- 238000001704 evaporation Methods 0.000 abstract 1
- 240000001085 Trapa natans Species 0.000 description 8
- 238000001035 drying Methods 0.000 description 5
- 235000003283 Pachira macrocarpa Nutrition 0.000 description 2
- 235000014364 Trapa natans Nutrition 0.000 description 2
- 235000012438 extruded product Nutrition 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
Classifications
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/397—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using a single screw
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention belongs to the technical field of PC (poly carbonate) sheet material production, and provides a production process and a device of a PC (poly carbonate) raw material sheet material. The production process comprises the following steps of: uniformly scattering color master on the surface of a raw material, uniformly stirring, adopting a single charging barrel screw extruder, wherein an extruding material cylinder is divided into four regions for heating, heating plastic raw materials by adopting an exhaust charging barrel and utilizing the charging barrel and a feeding screw rod; evaporating moisture contained in the plastic raw materials, placing the plastic raw materials in a mould, shaping, forming, dragging/ braking, cutting the PC sheet material with the required length, and placing the PC sheet material with the required length on the specific stacking frame; and carrying out heat treatment on the superposed PC sheet material, and chamfering of edge on angularities of the PC sheet material. The production process of the PC raw material sheet material provided by the invention has the advantages that the energy source is saved, the working procedures are reduced, the processing time is shortened, the manufacturing cost is saved, and the PC raw material sheet material has the stronger popularization and application value.
Description
Technical field
The invention belongs to PC sheet material manufacturing technology field, relate in particular to a kind of production technology of PC material plate goods.
Background technology
At present the production craft step of PC board product is as follows: 1. batching/spice technique: clear up surrounding environment and blow clean blender with air gun at the spice head, being strictly on guard against foul, impurity enters blender, raw material.Pour the 100KG raw material into blender, claim to claim 2-3KG look mother evenly to be sprinkling upon the raw material surface with dish, start blender, the spice time is 10-15 minute, and raw material is evenly mixed with the look mother; 2. charging technology: in time feed intake, guarantee that hopper is not empty, directly enter the drying cycles blower fan with air-prevention, affect dry return air speed.Different material can not be used with, and the type of the trade mark and the material of material is distinguished in attention, prevents that foreign material, assorted material from entering hopper, causes feed opening to stop up; 3. stoving process: because PC resin suction temperature is larger, must through advancing dry the processing, get rid of moisture content before extrusion molding, otherwise its water content surpasses certain limit, moisture content will evaporate into gas in extruder barrel, make goods inside contain pore, and intensity descends.Adopt 100 ℃ of circulating airs to carry out drying to PC, be 4-6H drying time, makes the interior water content of product lower than 0.02%; 4. expressing technique: adopt thin material cylinder screw extruder, extruding barrel Fen Si district heats: district's feeding section temperature: 260-270 ℃, melting compression section, 2nd district temperature: 265-275 ℃, three district's homogenizing zone temperature: 265-275 ℃, connector temperature: 270-280 ℃, extrude barrel screw speed: 10-15r/min; 5. moulding/setting process: mould is the moulding die cavity that patrix, middle plate, counterdie assemble, and middle plate charging aperture position is the 135 fan-shaped subtended angles of degree, and die size is 800*800.Mould is divided into two parts: compression forming district and cooling and shaping district, the mould compressional zone is divided into four districts heating, that is: last district temperature: last district temperature: 230-240 ℃, the first two distinguishes temperature: 220-230 ℃, Hou Yi district temperature: 230-240 ℃, Hou Er district temperature: 220-230 ℃; Shaping area: be connected to cold water pipe at mould the right and left, constantly the sheet material after moulding lowered the temperature by recirculated water, make sheet material complete typing; 6. brake technique: brake gear is equipped with in the exit position at mould, degree of tightness by brake gear, the raw material of melting forms certain pressure in the compressional zone, make the close structure of extruded product, and the degree of tightness that can brake by adjusting thickness and the degree of eccentricity of regulating sheet material; 7. cutting plate/windrow technique: measure 1230MM length with tape measure, start lath cutter, cut out needed length, with driving a vehicle, plate is sling, neatly overlay on specific rickstand.Be placed with three stainless square steel between plate and plate, square steel between layers seems preferably point-blank up and down; 8. Technology for Heating Processing: good sheet material is heat-treated to stacking heap with baking box, thereby eliminates the internal stress of sheet material, make sheet material can the outstanding figure in process, distortion.The PC plate is heat-treated mainly is divided into eight sections:
40 ℃ of first paragraph design temperatures, 150 minutes heating-up times;
130 ℃ of second segment design temperatures, constant temperature time thickness * 2*30 minute;
130 ℃ of the 3rd section design temperatures, temperature fall time 20 minutes;
100 ℃ of the 4th section design temperatures, constant temperature time 180 minutes;
100 ℃ of the 5th section design temperatures, temperature fall time 20 minutes;
70 ℃ of the 6th section design temperatures, constant temperature time 180 minutes;
70 ℃ of the 7th section design temperatures, temperature fall time is 20 minutes
40 ℃ of the 8th section design temperatures, constant temperature time 180 minutes;
9. bevelling technique: each water caltrop of plate is carried out bevelling process, make product more attractive in appearance, and can prevent sheet material water chestnut limit incised wound finger in handling process.The method of this production PC board product wastes energy, and operation is numerous and diverse, has extended process time, has increased production cost.
Summary of the invention
The invention provides a kind of production technology of PC material plate, be intended to solve the production technology of the PC material plate that prior art provides, exist production process loaded down with trivial details, energy consumption is serious, long processing time, the problem that production cost is higher.
The object of the present invention is to provide a kind of production technology of PC material plate, this technique comprises the following steps:
Step 1 is poured the 100KG raw material into blender, claim to claim 2-3KG look mother evenly to be sprinkling upon the raw material surface with dish, starts blender, and the spice time is 10-15 minute;
Step 2 adopts single screw extrusion machine, extrudes barrel Fen Si district and heats, and the use electromagnetic induction device heats gun barrel, screw rod;
Step 3 adopts the exhaust barrel, utilizes high temperature barrel and feeding spiro rod to make the PC raw materials melt, and the moisture that at high temperature contains in the PC raw material becomes steam and in time excludes by the steam vent that arranges on barrel;
Step 4 is clamp-oned the plastics of melting in mould, carries out moulding, typing, brake/traction processing;
Step 5 is measured 1230mm length with tape measure, cuts out the PC sheet material of required length, and is placed on specific rickstand;
Step 6, good PC sheet material is heat-treated to stacking heap;
Step 7 is carried out bevelling to each water caltrop of PC sheet material and is processed.
Further, in the process of feeding intake, in time feed intake, guarantee that hopper is not empty, different material can not be used with.
Further, in step 2, adopt thin material cylinder screw extruder, extrude barrel Fen Si district when heating, one district's feeding section temperature: 245-255 ℃, melting compression section, 2nd district temperature: 250-260 ℃, three district's homogenizing zone temperature: 250-260 ℃, connector temperature: 260-270 ℃, extrude barrel screw speed: 14-18r/min;
Further, in step 4, the moulding die cavity of mould for being assembled by patrix, middle plate, counterdie to plastic raw materials moulding, typing, middle plate charging aperture position is the 135 fan-shaped subtended angles of degree, die size is 800*800, mould is divided into two parts: mould is divided into two parts: compression forming district and cooling and shaping district have heat dam in the middle of compressional zone and cooling forming district.Compressional zone the right and left is equipped with heat-generating pipe, is used for keeping entering the melting charge of mould at forming under the pressure.Shaping area is connected to water pipe, under the effect of recirculated water, the plate of moulding is finalized the design.
Further, in step 4, fused raw material is clamp-oned in mould, the implementation method of carrying out moulding, typing, brake/traction processing is:
Four districts heating are divided in the compression forming of mould, and last district temperature: 220-230 ℃, the first two distinguishes temperature: 200-215 ℃, Hou Yi district temperature: 220-230 ℃, and Hou Er district temperature: 200-215 ℃;
Brake and hauling machine are set in the exit position of mould, and according to the plastic raw materials of the melting pressure in the compression forming district, the speed of regulating brake elasticity and hauling machine.
Further, in step 5, be placed with three stainless square steel between PC sheet material and PC sheet material, on stainless square steel between layers is in alignment.
Further, in step 6, when heat-treating stacking heap PC sheet material well, mainly be divided into 12 sections:
Heat 40 ℃ of temperature of first paragraph, 20 minutes heating-up times;
The sad temperature temperature 70 C of second segment, 180 minutes sad temperature time;
The 3rd section temperature 70 C of heating, warm-up time 20 minutes;
100 ℃ of the 4th section sad temperature temperature, 180 minutes sad temperature time;
The 5th section 100 ℃ of the temperature of heating, warm-up time 20 minutes;
130 ℃ of the 6th section thermostat temperatures, constant temperature time thickness (CM) * 2*30 minute;
The 7th section 130 ℃ of temperature of cooling, temperature fall time is 20 minutes;
100 ℃ of the 8th section sad temperature temperature, 180 minutes sad temperature time;
The 9th section 100 ℃ of temperature of cooling, 20 ℃ of temperature fall times;
The tenth section sad temperature temperature 70 C, 180 ℃ of sad temperature times;
The 11 section cooling temperature 70 C, temperature fall time 20 minutes;
40 ℃ of the 12 section sad temperature temperature, 180 minutes sad temperature time another object of the present invention is to provide a kind of device of the PC of production material plate goods, and this device comprises:
The barrel screw rod is connected with reduction box, and barrel and shell of reduction box are fixed together, and the barrel screw rod is provided in a side of in barrel, the barrel screw rod is connected with the reduction box driven shaft, barrel is provided with Hopper Dryer, and bump joint is equipped with in the barrel exit position, links together by flange pull head and mould.During production, by controlling electric cabinet, barrel and mould are heated, temperature arrives design temperature, the starter motor running drives reduction box by belt transmission, and reduction box drives the running of barrel screw rod, the running of raw material in Hopper Dryer by the barrel screw rod enters the barrel melting and is extruded, clamp-on mould through bump joint, in the compressed moulding in mould compressional zone, and be shaped into regular product and extrusion die at shaping area.
the production technology of PC material plate provided by the invention, the look mother evenly is sprinkling upon the raw material surface, and stir, adopt thin material cylinder screw extruder, extruding barrel Fen Si district heats, adopt the exhaust barrel, utilize barrel and feeding barrel screw rod that plastic raw materials is heated, evaporate the moisture that contains in plastic raw materials, plastic raw materials is put into mould, carry out moulding, typing, brake/traction is processed, cut out the PC sheet material of required length, and be placed on specific rickstand, good PC sheet material is heat-treated to stacking heap, each water caltrop of PC sheet material is carried out bevelling to be processed, the method of this production PC board product has been saved the energy, reduced operation, shortened process time, saved production cost, having stronger propagation and employment is worth.
Description of drawings
Fig. 1 is the process chart of realizing of the production PC material plate that provides of the embodiment of the present invention;
Fig. 2 is the structural representation of the device of the production PC sheet material that provides of the embodiment of the present invention.
In figure: 1. motor; 2. reduction box; 3. Hopper Dryer; 4. barrel screw rod; 5. control electric cabinet; 6. bump joint; 7. mould.
The specific embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is described in further detail.Should be appreciated that specific embodiment described herein only in order to explaining the present invention, and be not used in and limit invention.
Fig. 1 shows the technological process that realizes of production PC material plate goods that the embodiment of the present invention provides.
This technological process comprises the following steps:
Step S101 pours the 100KG raw material into blender, claim to claim 2-3KG look mother evenly to be sprinkling upon the raw material surface with dish, starts blender, and the spice time is 10-15 minute;
Step S102 adopts single screw extrusion machine, extrudes barrel Fen Si district and heats, and the use electromagnetic induction device heats gun barrel, screw rod;
Step S103 adopts the exhaust barrel, utilizes high temperature barrel and feeding spiro rod to make the PC raw materials melt, and the moisture that at high temperature contains in the PC raw material becomes steam and in time excludes by the steam vent that arranges on barrel;
Step S104 clamp-ons the raw material of melting in mould, carries out moulding, typing, brake/traction processing;
Step S105 measures 1230mm length with tape measure, cuts out the PC sheet material of required length, and is placed on specific rickstand;
Step S106, good PC sheet material is heat-treated to stacking heap;
Step S107 carries out bevelling to each water caltrop of PC sheet material and processes.
In embodiments of the present invention, in the process of feeding intake, in time feed intake, assorted material can not be arranged in the PC raw material.
In embodiments of the present invention, in step S102, adopt thin material cylinder screw extruder, extrude barrel Fen Si district when heating, one district's feeding section temperature: 245-255 ℃, melting compression section, 2nd district temperature: 250-260 ℃, three district's homogenizing zone temperature: 250-260 ℃, connector temperature: 260-270 ℃, extrude barrel screw speed: 14-18r/min;
In embodiments of the present invention, in step S104, the moulding die cavity of mould for being assembled by patrix, middle plate, counterdie to plastic raw materials moulding, typing, middle plate charging aperture position is the 135 fan-shaped subtended angles of degree, die size is 800*800, mould is divided into two parts: compression forming district and cooling and shaping district have heat dam in the middle of compressional zone and cooling forming district.Compressional zone the right and left is equipped with heat-generating pipe, is used for keeping entering the melting charge of mould at forming under the pressure.Shaping area is connected to water pipe, under the effect of recirculated water, the plate of moulding is finalized the design.
In embodiments of the present invention, in step S104, the raw material of melting is clamp-oned in mould by the barrel screw rod, the implementation method of carrying out moulding, typing, brake/traction processing is:
Four districts heating are divided in the compression forming of mould, and last district temperature: 220-230 ℃, the first two distinguishes temperature: 200-215 ℃, Hou Yi district temperature: 220-230 ℃, and Hou Er district temperature: 200-215 ℃;
Brake and hauling machine are set in the exit position of mould, and according to the plastic raw materials of the melting pressure in the compression forming district, the speed of regulating brake elasticity and hauling machine.
In embodiments of the present invention, in step S105, be placed with three stainless square steel between PC sheet material and PC sheet material, on stainless square steel between layers is in alignment.
In embodiments of the present invention, in step S106, when heat-treating stacking heap PC sheet material well, mainly be divided into 12 sections:
Heat 40 ℃ of temperature of first paragraph, 20 minutes heating-up times;
The sad temperature temperature 70 C of second segment, 180 minutes sad temperature time;
The 3rd section temperature 70 C of heating, warm-up time 20 minutes;
100 ℃ of the 4th section sad temperature temperature, 180 minutes sad temperature time;
The 5th section 100 ℃ of the temperature of heating, warm-up time 20 minutes;
130 ℃ of the 6th section thermostat temperatures, constant temperature time thickness (CM) * 2*30 minute;
The 7th section 130 ℃ of temperature of cooling, temperature fall time is 20 minutes;
100 ℃ of the 8th section sad temperature temperature, 180 minutes sad temperature time;
The 9th section 100 ℃ of temperature of cooling, 20 ℃ of temperature fall times;
The tenth section sad temperature temperature 70 C, 180 ℃ of sad temperature times;
The 11 section cooling temperature 70 C, temperature fall time 20 minutes;
40 ℃ of the 12 section sad temperature temperature, 180 minutes sad temperature time
Below in conjunction with drawings and the specific embodiments, application principle of the present invention is further described.
1, batching/spice technique:
Clear up surrounding environment and blow clean blender with air gun at the spice head, be strictly on guard against foul, impurity enters blender, raw material, pour the 100KG raw material into blender, claim to claim 2-3KG look mother evenly to be sprinkling upon the raw material surface with dish, start blender, the spice time is 10-15 minute, and raw material and look mother is evenly mixed;
2, charging technology: in time feed intake, guarantee that hopper is not empty, directly enter the drying cycles blower fan with air-prevention, affect dry return air speed, different material can not be used with, and the type of the trade mark and the material of material is distinguished in attention, prevent that foreign material, assorted material from entering hopper, causes feed opening to stop up.
3, expressing technique: adopt thin material cylinder screw extruder, extrude barrel Fen Si district and heat:
One district's feeding section temperature: 245-255 ℃;
Melting compression section, 2nd district temperature: 250-260 ℃;
Three district's homogenizing zone temperature: 250-260 ℃;
Joint: 260-270 ℃;
Extrude barrel screw speed: 14-18r/min;
4, exhaust air technique: adopt the exhaust barrel, utilize barrel and feeding barrel screw rod to the heating effect of plastic raw materials, the moisture that contains in plastic raw materials is evaporated and in time exclude by the steam vent that arranges on barrel, guaranteed the quality of product, simultaneously need to powerful drying plant be installed on hopper, saving equipment and the energy have reduced operation, shortened process time, saved production cost;
5, moulding/setting process: mould is the moulding die cavity that patrix, middle plate, counterdie assemble, and middle plate charging aperture position is the 135 fan-shaped subtended angles of degree, and die size is 800*800.Mould is divided into two parts: compression forming district and cooling and shaping district have heat dam in the middle of compressional zone and cooling forming district.Compressional zone the right and left is equipped with heat-generating pipe, is used for keeping entering the melting charge of mould at forming under the pressure.Shaping area is connected to water pipe, under the effect of recirculated water, the plate of moulding is finalized the design.
The mould compressional zone is divided into the heating of 4th district, that is:
Last district temperature: 220-230 ℃, the first two distinguishes temperature: 200-215 ℃, Hou Yi district temperature: 220-230 ℃, and Hou Er district temperature: 200-215 ℃;
Shaping area: be connected to cold water pipe at mould the right and left, constantly the sheet material after moulding lowered the temperature by recirculated water, make sheet material complete typing.
6, brake/traction technique: in the exit position of mould, brake mount and brake article are housed, by regulating up and down brake article pressing plate elasticity, make the raw material of melting form certain pressure in the compressional zone, make the close structure of extruded product.
Further in the back of braking, hauling machine is housed, by regulating the speed of hauling machine, makes to keep constant dimensions at the uniform velocity to advance, sheet material is raised the efficiency in the eccentric situation of the less appearance of extrusion mould-outlet, has reduced the artificial step of braking of repeatedly regulating.
7, cutting plate/windrow technique: measure 1230MM length with tape measure, start lath cutter, cut out needed length, with driving, plate is sling, neatly overlay on specific rickstand, be placed with three stainless square steel between plate and plate, square steel between layers seems preferably point-blank up and down.
8, Technology for Heating Processing: good sheet material is heat-treated to stacking heap with baking box, thereby eliminates the internal stress of sheet material, make sheet material can the outstanding figure in process, distortion.The PC plate is heat-treated mainly is divided into 12 sections:
Heat 40 ℃ of temperature of first paragraph, 20 minutes heating-up times;
The sad temperature temperature 70 C of second segment, 180 minutes sad temperature time;
The 3rd section temperature 70 C of heating, warm-up time 20 minutes;
100 ℃ of the 4th section sad temperature temperature, 180 minutes sad temperature time;
The 5th section 100 ℃ of the temperature of heating, warm-up time 20 minutes;
130 ℃ of the 6th section thermostat temperatures, constant temperature time thickness (CM) * 2*30 minute;
The 7th section 130 ℃ of temperature of cooling, temperature fall time is 20 minutes;
100 ℃ of the 8th section sad temperature temperature, 180 minutes sad temperature time;
The 9th section 100 ℃ of temperature of cooling, 20 ℃ of temperature fall times;
The tenth section sad temperature temperature 70 C, 180 ℃ of sad temperature times;
The 11 section cooling temperature 70 C, temperature fall time 20 minutes;
40 ℃ of the 12 section sad temperature temperature, 180 minutes sad temperature time
9. bevelling technique: each water caltrop of plate is carried out bevelling process, make product more attractive in appearance, and can prevent sheet material water chestnut limit incised wound finger in handling process.
Fig. 2 is the structural representation of the device of the production PC board product that provides of the embodiment of the present invention, and this device comprises:
Barrel screw rod 4 is connected with reduction box 2, barrel and reduction box 2 shells are fixed together, the barrel screw rod is provided in a side of in barrel, the barrel screw rod is connected with reduction box 2 driven shafts, barrel is provided with Hopper Dryer, bump joint 6 is equipped with in the barrel exit position, links together by flange pull head 6 and mould 7.During production, heat by controlling 5 pairs of barrels of electric cabinet and mould, temperature arrives design temperature, the starter motor running drives reduction box by belt transmission, and reduction box 2 drives 4 runnings of barrel screw rod, the running of raw material in Hopper Dryer by barrel screw rod 4 enters the barrel melting and is extruded, clamp-on mould 7 through bump joint 6, in the compressed moulding in mould compressional zone, and be shaped into regular product and extrusion die 7 at shaping area.Reduction box 2 provides power by motor 1.
the production technology of the PC board product that the embodiment of the present invention provides, the look mother evenly is sprinkling upon the raw material surface, and stir, adopt thin material cylinder screw extruder, extruding barrel Fen Si district heats, adopt the exhaust barrel, utilize barrel and feeding barrel screw rod that plastic raw materials is heated, evaporate the moisture that contains in plastic raw materials, plastic raw materials is put into mould, carry out moulding, typing, brake/traction is processed, cut out the PC sheet material of required length, and be placed on specific rickstand, good PC sheet material is heat-treated to stacking heap, each water caltrop of PC sheet material is carried out bevelling to be processed, the method of this production PC board product has been saved the energy, reduced operation, shortened process time, saved production cost, having stronger propagation and employment is worth.
The above is only preferred embodiment of the present invention, not in order to limiting the present invention, all any modifications of doing within the spirit and principles in the present invention, is equal to and replaces and improvement etc., within all should being included in protection scope of the present invention.
Claims (8)
1. a PC material plate production technology, is characterized in that, this technique comprises the following steps:
Step 1 is poured the 100KG raw material into blender, claim to claim 2-3KG look mother evenly to be sprinkling upon the raw material surface with dish, starts blender, and the spice time is 10-15 minute;
Step 2 adopts single screw extrusion machine, extrudes barrel Fen Si district and heats, and the use electromagnetic induction device heats gun barrel, screw rod;
Step 3 adopts the exhaust barrel, utilizes high temperature barrel and feeding spiro rod to make the PC raw materials melt, and the moisture that at high temperature contains in the PC raw material becomes steam and in time excludes by the steam vent that arranges on barrel;
Step 4 is clamp-oned the raw material of melting in mould, carries out moulding, typing, brake/traction processing;
Step 5 is measured 1230mm length with tape measure, cuts out the PC sheet material of required length, and is placed on specific rickstand;
Step 6, good PC sheet material is heat-treated to stacking heap;
Step 7 is carried out bevelling to each water caltrop of PC sheet material and is processed.
2. the method for claim 1, is characterized in that, in the process of feeding intake, in time feed intake, and different material can not be used with.
3. the method for claim 1, it is characterized in that, in step 2, adopt thin material cylinder screw extruder, extrude barrel Fen Si district when heating, district's feeding section temperature: 245-255 ℃, melting compression section, 2nd district temperature: 250-260 ℃, three district's homogenizing zone temperature: 250-260 ℃, connector temperature: 260-270 ℃, extrude barrel screw speed: 14-18r/min.
4. the method for claim 1, it is characterized in that, in step 4, the moulding die cavity of mould for being assembled by patrix, middle plate, counterdie to plastic raw materials moulding, typing, middle plate charging aperture position is the 135 fan-shaped subtended angles of degree, die size is 800*800, and mould is divided into two parts: compression forming district and cooling and shaping district have heat dam in the middle of compressional zone and cooling forming district.Compressional zone the right and left is equipped with heat-generating pipe, is used for keeping entering the melting charge of mould at forming under the pressure.Shaping area is connected to water pipe, under the effect of recirculated water, the plate of moulding is finalized the design.
5. the method for claim 1, is characterized in that, in step 4, plastic raw materials put into mould, and the implementation method of carrying out moulding, typing, brake/traction processing is:
Four districts heating are divided in the compression forming of mould, and last district temperature: 220-230 ℃, the first two distinguishes temperature: 200-215 ℃, Hou Yi district temperature: 220-230 ℃, and Hou Er district temperature: 200-215 ℃;
Exit position at mould arranges hauling machine, and according to the plastic raw materials of the melting pressure in the compression forming district, the speed of regulating hauling machine.
6. the method for claim 1, is characterized in that, in step 5, is placed with three stainless square steel between PC sheet material and PC sheet material, on stainless square steel between layers is in alignment.
7. the method for claim 1, is characterized in that, in step 6, when heat-treating stacking heap PC sheet material well, mainly is divided into 12 sections:
Heat 40 ℃ of temperature of first paragraph, 20 minutes heating-up times;
The sad temperature temperature 70 C of second segment, 180 minutes sad temperature time;
The 3rd section temperature 70 C of heating, warm-up time 20 minutes;
100 ℃ of the 4th section sad temperature temperature, 180 minutes sad temperature time;
The 5th section 100 ℃ of the temperature of heating, warm-up time 20 minutes;
130 ℃ of the 6th section thermostat temperatures, constant temperature time thickness (CM) * 2*30 minute;
The 7th section 130 ℃ of temperature of cooling, temperature fall time is 20 minutes;
100 ℃ of the 8th section sad temperature temperature, 180 minutes sad temperature time;
The 9th section 100 ℃ of temperature of cooling, 20 ℃ of temperature fall times;
The tenth section sad temperature temperature 70 C, 180 ℃ of sad temperature times;
The 11 section cooling temperature 70 C, temperature fall time 20 minutes;
40 ℃ of the 12 section sad temperature temperature, 180 minutes sad temperature time.
8. a device of producing PC material plate goods, is characterized in that, this device comprises:
The barrel screw rod is connected with reduction box, and barrel and shell of reduction box are fixed together, and the barrel screw rod is provided in a side of in barrel, the barrel screw rod is connected with the reduction box driven shaft, barrel is provided with Hopper Dryer, and bump joint is equipped with in the barrel exit position, links together by flange pull head and mould; During production, by controlling electric cabinet, barrel and mould are heated, temperature arrives design temperature, the starter motor running drives reduction box by belt transmission, and reduction box drives the running of barrel screw rod, the running of raw material in Hopper Dryer by the barrel screw rod enters the barrel melting and is extruded, clamp-on mould through bump joint, in the compressed moulding in mould compressional zone, and be shaped into regular product and extrusion die at shaping area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105397403A CN103101164A (en) | 2012-12-14 | 2012-12-14 | Production process and device of PC (poly carbonate) raw material sheet material |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012105397403A CN103101164A (en) | 2012-12-14 | 2012-12-14 | Production process and device of PC (poly carbonate) raw material sheet material |
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| CN103101164A true CN103101164A (en) | 2013-05-15 |
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| CN2012105397403A Pending CN103101164A (en) | 2012-12-14 | 2012-12-14 | Production process and device of PC (poly carbonate) raw material sheet material |
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| CN108099431A (en) * | 2017-12-21 | 2018-06-01 | 江苏国伟兴塑胶科技有限公司 | A kind of printing process of PC polycarbonate plates |
| CN111873356A (en) * | 2020-07-22 | 2020-11-03 | 深圳市恩欣龙特种材料股份有限公司 | Production process special for PA66 board product |
| CN111873358A (en) * | 2020-07-22 | 2020-11-03 | 深圳市恩欣龙特种材料股份有限公司 | Extrusion production process special for PC raw material bar product |
| CN115721035A (en) * | 2022-12-21 | 2023-03-03 | 广东好心情食品集团有限公司 | Low-temperature environment-friendly food extrusion process |
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| CN116728691B (en) * | 2023-06-16 | 2024-02-23 | 河北优尼科塑胶制造有限公司 | Polycarbonate board system of processing |
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Application publication date: 20130515 |