The production method of continuous glass-fiber cloth reinforced thermoplastics section bar
Technical field
The present invention relates to a kind of production method of continuous glass-fiber cloth reinforced thermoplastics section bar.The method of to be a kind of with continuous glass-fiber cloth reinforced thermoplastics sheet material the be production reinforced plastics section bar processing issuance of materials be specifically related to.Belong to field of material technology.
Background technology
The preparation method of described continuous glass-fiber cloth reinforced thermoplastics sheet material, by the applicant together with the present invention, has applied for Chinese patent in the same applying date.
Described continuous glass-fiber cloth reinforced thermoplastics sheet material is with thermoplastic (such as polypropylene) for matrix, with continuous glass-fiber cloth for thermoplastic matrix internal memory reinforcing material, and a kind of reinforced plastics sheet material prepared by impregnation technology.The thickness of described this reinforced plastics sheet material within the scope of 0.5 ~ 1mm, and generally occurs with package form.
Described this reinforced plastics sheet material, because of its have higher tensile strength and case hardness and weathering ability and with the mechanical and physical performances such as the compound ability of other entity, manufactured industry is widely used in entity component (such as building, in furniture and car and boat) incrustation, and achieved obvious economic and social benefits.
But, can how effectively expand and promote again the application of described reinforced plastics sheet material, such as reprocessed and made reinforced plastics section bar, be such as reprocessed into the reinforced plastics section bar of surface in multiple geometry continuous bending (as glass fiber reinforced plastic strip watt).The application of this undoubtedly section bar, then can be more broad more practical.
, this continuous glass-fiber cloth reinforced thermoplastics sheet material, prepares the method for described reinforced plastics section bar, there is not yet this report so far.
Summary of the invention
It is reasonable that the present invention aims to provide a kind of production method, production efficiency is higher, the production method of the continuous glass-fiber cloth reinforced thermoplastics section bar of favorable quality of finished products, for described reinforced plastics sheet material developing application more widely, and its commercial value can be improved, manufacturing demand can be met again.
The present invention realizes the technical though of its object, and one is adopt continuous package glass-fiber-fabric reinforced thermoplastics sheet material to be the raw material that sets out of production process, and two is that the raw material that sets out described in making eases back, for roll forming provides condition support by heating; Three is adopt the secondary roll of the concave-convex shaping of roll surface respectively in multiple geometry, implementing hot to rolling into type, producing continuous glass-fiber cloth reinforced thermoplastics section bar, thus realize object of the present invention after naturally cooling.
Based on the above technical though, the technical scheme that the present invention realizes its object is:
A kind of production method of continuous glass-fiber cloth reinforced thermoplastics section bar, with package continuous glass-fiber cloth reinforced thermoplastics sheet material for processing issuance of materials, have the milling train of the secondary roll of concave-convex shaping for rolling equipment with roll surface, it is characterized in that, this production method is carried out according to following steps successively:
A, to unreel; Described unreeling is implemented to unreel by the described sheet material processing issuance of materials package;
B, hot melt; Described hot melt is the described sheet material that will unreel, and to import in hot melt case and be laid on belt conveying platform to implement heating and melting; Hot melting temperature controls 180 ~ 200 DEG C of scopes, and the hot melt processing time controls within the scope of 0.5 ~ 1min, makes described sheet material soften, for posterior formation rolling provides condition support by hot melt process;
C, breaking down; Described breaking down is the described sheet material will softened through hot melt process, is tentatively rolled into semi-finished product by described rolling equipment; Preliminary hot-rolled temperature controls within the scope of 180 ~ 200 DEG C;
D, finish rolling; Described finish rolling is by the semi-finished product through just rolling into, and becomes moulded products by rolling equipment finish rolling described in second; Final rolling temperature controls within the scope of 180 ~ 200 DEG C;
E, cooling; Described cooling is by the moulded products through finish rolling, imports on net belt type delivery platform, implements nature cooling;
F, to cut; Described cutting is moulded products by through cooling processing, cuts into the continuous glass-fiber cloth reinforced thermoplastics section bar of Len req by scale requirement;
Describedly to unreel, hot melt, breaking down, finish rolling, cool and cut 6 steps, produce at one and carry out continuously; The travel line speeds control of described production line is within the scope of 3 ~ 5m/min.
By above given technical scheme, can understand in conjunction with above-mentioned technical though, present invention achieves the object that it will realize.Especially its quantity-produced on a production line, thus its production efficiency is quite high.
In order to meet the needs of the multiple practicality of manufacturing industry, the present invention also advocates, the concave-convex shaping of the roller surface of described rolling equipment is secondary, that equilateral isosceles trapezoid or semi-circular or triangle or rectangle or other geometry concave-convex shaping are secondary, describedly process issuance of materials continuous glass-fiber cloth reinforced thermoplastics sheet material, by the rolling of the secondary roll of the concave-convex shaping of described various shape, produce in trapezoidal, semicircle continuously continuously respectively, the continuous glass-fiber cloth reinforced thermoplastics section bar of continuous triangle shape, Continuous Rectangular and other geometry continuously.The described reinforced plastics section bar in continuous isosceles trapezoid bending given by this technical scheme, after mutual corresponding composite hot melt is bonding, can produce hexagonal cell sheet material.
In technique scheme, the present invention advocates, the hot melting temperature of described heat fusion step, and being is provided by the infrared heater be located in hot melt case and keep.Certainly, be not limited thereto, such as heating using microwave etc.In view of the hot permeability of infrared heating is also relatively good, thus the present invention is in preferably to adopt.
In technique scheme, the present invention advocates, the breaking down temperature of described breaking down and finish rolling step and final rolling temperature, is that the conduction oil imported in the secondary roll of described concave-convex shaping by circulation respectively provides and keeps.Certainly, be not limited thereto.Such as adopt superheated steam heating, but because heat-conduction oil heat capacity is comparatively large, good effect of heat exchange, and its firing equipment is simpler than superheated steam production equipment, thus, the present invention preferably adopts.
In order to effectively save production cost, reducing equipment investment, enhancing productivity, the present invention also advocates production continuous glass-fiber cloth reinforced thermoplastics sheet material and production continuous glass-fiber cloth reinforced thermoplastics section bar.Be incorporated on a production line and carry out continuous seepage, that is, when using package glass-fiber-fabric as when processing issuance of materials, then before its breaking down step, also comprise package glass-fiber-fabric to unreel, flatten, soak and mould, leaching is moulded post processing, thermal finalization and is molded over the production stage of interior continuous glass-fiber cloth thermoplastic plastic sheet; And through the continuous glass-fiber cloth thermoplastic plastic sheet that forming step is produced, directly import the breaking down step of continuous glass-fiber cloth reinforced thermoplastics section bar production stage, then through finish rolling, cooling and cutting step, and make continuous glass-fiber cloth reinforced thermoplastics section bar;
After technique scheme is implemented in full, the production method that the present invention has is reasonable, and favorable quality of finished products, production efficiency high is apparent.
Accompanying drawing explanation
Fig. 1 is the shape and structure schematic perspective view of a kind of manufactured goods continuous glass-fiber of the present invention cloth reinforced thermoplastics section bar, shown in figure is in the bending of continuous isosceles antiparallelogram and spacing between adjacent 2 trapezoidal bendings, equals the continuous isosceles trapezoid bending reinforced plastics section bar of the isosceles trapezoid length of side;
Fig. 2 is that the roll surface of rolling manufactured goods as shown in Figure 1 has the breaking down of concave-convex shaping pair and the schematic diagram of finishing roll.Roll shown in figure is hollow heat-conduction oil heat roll.
Fig. 3 is the schematic diagram of production line of the present invention, and shown in figure, 1 for unreeling section, and 2 is hot melt section, and 3 is breaking down section, and 4 is finish rolling section, and 5 is cooling section, and 6 for cutting section.
Detailed description of the invention
Below in conjunction with accompanying drawing, by the description of detailed description of the invention, the invention will be further described.
A kind of typical detailed description of the invention of the present invention, as shown in accompanying drawing 1 to 3.
A kind of production method of continuous glass-fiber cloth reinforced thermoplastics section bar, with package continuous glass-fiber cloth reinforced thermoplastics sheet material for processing issuance of materials, there is the milling train of the secondary roll of concave-convex shaping for rolling equipment with roll surface, and this production method is carried out according to following steps successively:
A, to unreel; Described unreeling is implemented to unreel by the described sheet material 1a processing issuance of materials package;
B, hot melt; Described hot melt is the described sheet material 1a that will unreel, and to import in hot melt case 2c and be laid on net belt type delivery platform 2b to implement heating and melting; Hot melting temperature controls 180 ~ 200 DEG C of scopes, and the hot melt processing time controls within the scope of 0.5 ~ 1min, softens, for posterior formation rolling provides condition support by processing issuance of materials sheet material described in hot melt process order;
C, breaking down; Described breaking down is the described sheet material will softened through hot melt process, is tentatively rolled into semi-finished product by described rolling equipment 3a; Preliminary hot-rolled temperature controls within the scope of 180 ~ 200 DEG C;
D, finish rolling; Described finish rolling is by the semi-finished product through just rolling into, and becomes moulded products by rolling equipment 4a finish rolling described in second; Final rolling temperature controls within the scope of 180 ~ 200 DEG C;
E, cooling; Described cooling is by the moulded products through finish rolling, imports on net belt type delivery platform 5a, implements nature cooling;
F, to cut; Described cutting is by the moulded products through cooling processing by scale requirement, is cut into the continuous glass-fiber cloth reinforced thermoplastics section bar of Len req by guillotine 6a;
Describedly to unreel, hot melt, breaking down, finish rolling, cool and cut, produce at one and carry out continuously; The travel line speed of described production line is within the scope of 3 ~ 5m/min.
And the concave-convex shaping of the roller surface of described process equipment milling train is secondary, it is isosceles trapezoid concave-convex shaping pair (as shown in Figure 2), describedly process issuance of materials continuous glass-fiber cloth reinforced thermoplastics sheet material, by the rolling of the secondary roll of the concave-convex shaping of described shape, produce the continuous glass-fiber cloth reinforced thermoplastics section bar in isosceles antiparallelogram continuous bending.
And the hot melting temperature of described heat fusion step, be provided by the carbon MID INFRARED heater 2a be located in hot melt case 2c and kept.
And the breaking down temperature of described breaking down and finish rolling step and final rolling temperature, be that the conduction oil imported in the secondary roll of described concave-convex shaping by circulation respectively provides and keeps.
Detailed description of the invention two, please join and read accompanying drawing 1,2.
A kind of is the method producing the production continuous glass-fiber cloth reinforced thermoplastics section bar sending out material by package glass-fiber-fabric, comprise each step (particular content of its step and each step of continuous glass-fiber cloth reinforced thermoplastics sheet production method, ask for an interview " production method of continuous glass-fiber cloth reinforced thermoplastics sheet material " of being applied in the same applying date by the applicant)
That is, when using package glass-fiber-fabric as when processing issuance of materials, also comprise package glass-fiber-fabric and unreel, flatten, soak and mould, leaching is moulded post processing, thermal finalization and is molded over the production stage of interior continuous glass-fiber cloth thermoplastic plastic sheet; And through continuous glass-fiber cloth thermoplastic plastic sheet that forming step is produced, the breaking down step of direct importing continuous glass-fiber cloth of the present invention reinforced thermoplastics section bar production stage, again through finish rolling, cooling and cutting step, and make continuous glass-fiber cloth reinforced thermoplastics section bar.
The method of the present invention described by typical detailed description of the invention, the first sample testing result of prepared continuous glass-fiber cloth reinforced thermoplastics section bar is:
Described section bar thickness 0.8mm, glass weight percentage 30%, proportion 1.2, heat distortion temperature 156.6 DEG C, dimension 142.5 DEG C, card.
Flame retardant rating V
0, tensile strength 130Mpa, bending strength 110 Mpa, bending modulus 4000 Mpa, impact strength 80 Mpa, case hardness 88.6HR.Continuously shaped shape is correctly neat.
Above testing result display, the present invention achieves obvious technical economic benefit, achieves original intention of the present invention.