CN102926133B - One step processing glass fibre continuous strand felt production technology - Google Patents
One step processing glass fibre continuous strand felt production technology Download PDFInfo
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- CN102926133B CN102926133B CN201210461214.XA CN201210461214A CN102926133B CN 102926133 B CN102926133 B CN 102926133B CN 201210461214 A CN201210461214 A CN 201210461214A CN 102926133 B CN102926133 B CN 102926133B
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Abstract
The present invention relates to a kind of one step processing glass fibre continuous strand felt production technology, its innovative point is that described step is: glass metal is flowed out by melting furnace and is drawn as continuous fibers precursor, fiber precursor is divided into some Shu Yuansi after baster, beam splitter, throwing machine structure is entered after precursor pile warp to godet roller, under the continuous swing of throwing machine structure, precursor throwing is on the conveyer belt of below movement, form the precursor felt covering whole conveyer belt width, precursor felt continuously enters oven for drying by conveyer belt, is wound up after oven dry by coiler device.The method is adopted to obtain glass fibre continuous strand felt, consume energy low, output is large, production cost is low, mutual bracing mechanical linkage effect and a small amount of adhesive bond is utilized to form between its precursor, there is isotropism, flow conductivity good, resistance to erosion, cover the advantages such as mould is good, mechanical strength is high, easy discharge bubble, be widely used in the forming process of glass fiber reinforced plastics such as pultrusion, mold pressing, winding, hand paste, vacuum forming.
Description
Technical field
The present invention relates to a kind of glass mat, particularly a kind of one step processing glass fibre continuous strand felt production technology.
Background technology
Glass fibre continuous strand felt is that a kind of Novel glass fiber nonwoven strengthens base material, it is owing to having isotropism, flow conductivity good, resistance to erosion, cover the advantages such as mould is good, mechanical strength is high, easy discharge bubble, be widely used in the forming process of glass fiber reinforced plastics such as pultrusion, mold pressing, winding, hand paste, vacuum forming, be widely used in the fields such as space flight and aviation, chemical anticorrosion, automobile, ships and light boats, sports equipment, building materials, electronics, electrical equipment, amusement appliance with the article of fiber reinforced plastics that this base material strengthens.
Current China glass fibre continuous strand felt adopts two-step method moulding process, and it has first drawn cake, then transports creel to, introduces throwing silk forming machine shaping.This kind of technique has produces flexibly, with opening with stopping, changes kind advantage easily.But there is certain problem: consume energy higher, uniform in shaping is poor, the problems such as imperfect bonding.
Summary of the invention
The technical problem to be solved in the present invention is to provide the one step processing glass fibre continuous strand felt production technology that a kind of output is large, cost is low.
For solving the problems of the technologies described above, technical scheme of the present invention is: a kind of one step processing glass fibre continuous strand felt production technology, and its innovative point is that described processing step is: described processing step is further comprising the steps of:
A, throwing silk: after raw tow pile warp godet roller, enter throwing machine structure, under the throwing silk action of the reciprocation cycle of throwing machine structure, raw tow throwing, on the conveyer belt of below movement, forms the precursor felt covering whole conveyer belt width;
B, prebake: it is that the baking oven of 50 DEG C-250 DEG C carries out prebake that precursor felt continuously enters temperature by conveyer belt;
C, binding agent apply: by the device of curtain type band pumping function by noted polyester emulsion or polyester powder breast hybrid adhesive/be evenly sprayed in felt blanket by polyester pulvis binding agent with 0.5-10Wt% amount (binding agent accounts for the ratio of finished product felt) by dusting device;
D, solidification: to be transported in 80 DEG C of-250 DEG C of curing ovens with the speed transmission of 5-25m/min by conveyer belt with the felt blanket of binding agent and to carry out baking and curing (curing oven length 5-40 rice);
E, cooling: with the water of 5 DEG C-30 DEG C for cooling medium, the metal roller rotated in 5-25m/min linear velocity cools felt, cooling surface contact length 1-5 rice;
F, compacting: transmission speed is 5-25m/min, make felt smooth-going by the metallic roll of a pair rotation to the pressure that felt applies 1000-10000N/2m;
G, rip cutting: cut out the burr except felt both sides, longitudinally cut into felt simultaneously and meet the width requirement of client to felt;
H, cleaning: burr, useless fiber, remaining binder are cleaned out;
I, bundling; The felt continuously produced is divided according to client and/or packing instructions the monovolume felt being rolled into certain length and diameter.
Further, linear velocity 800-4000m/min is taken turns in drawing of described throwing machine structure, and the throwing silk wheel reciprocally swinging angular range of throwing machine structure is in ± 60 °.
Further, described conveyer belt translational speed, conveyor belt of baking oven speed are 5-25m/min.
Further, the diameter of described continuous fibers monofilament is 9-24 μm.
Further, glass fibre is thrown on conveyer belt perpendicular to conveyer belt direction by described throwing machine structure, and this conveyer belt is positioned at the below of pulling wheel.
The invention has the advantages that: adopt the method obtain glass fibre continuous strand felt, consume energy low, output is large, production cost is low, a production line produces 4000 tons of continuous felts per year.Utilize mutual bracing mechanical linkage effect and a small amount of adhesive bond to form between its precursor, density is at 150-1200g/m
2, between thickness 0.2-5mm, there is isotropism, flow conductivity good, resistance to erosion, cover the advantages such as mould is good, mechanical strength is high, easy discharge bubble, be widely used in the forming process of glass fiber reinforced plastics such as pultrusion, mold pressing, winding, hand paste, vacuum forming.
Accompanying drawing explanation
Fig. 1 is glass fibre continuous strand felt production throwing machine structure front view of the present invention.
Fig. 2 is glass fibre continuous strand felt production throwing machine structure side view of the present invention.
Detailed description of the invention
Embodiment 1
Such as the one step processing glass fibre continuous strand felt LPM450-185 of pultrude process, grammes per square metre is 450g/m
2, width 185cm, long 240 meters of volume, thickness 0.48mm.
In the present embodiment, glass metal is formed by frit, through oiling rolls surface coating sizing agent (being made up of silane coupler, polyester film former and lubricant).Binding agent is polyester-type pulvis binding agent (can be pulvis or emulsion or powder breast hybrid adhesive, more than be commercially available), and melting furnace has 20 stations, distributes along conveyer belt moving direction symmetrical chiasma.
Concrete technology is:
The making of a, raw tow: glass metal is at 1250 DEG C---melt in the melting furnace of 1350 DEG C of high temperature, flow out by 560 hole noble metal bushings and be pulled into continuous fibers precursor, fiber precursor is after oiling rolls routine coating sizing agent, some Shu Yuansi are divided into again by beam splitter, every Shu Yuansi is made up of 40 monofilament, and the diameter control of monofilament is 18 μm;
B, throwing silk: after raw tow pile warp godet roller, enter throwing machine structure, the structure of throwing machine structure, as shown in Figure 1, 2, comprising can the drawing wheel 1 and throws silk wheel 2 of rotation, be evenly distributed with some gaps 3 drawing on wheel 1 periphery, this gap 3 axially extends along drawing wheel 1 periphery, throwing silk wheel 2 is arranged on and draws in wheel 1, a similar internal gear pair structure is formed with drawing wheel 1, throwing silk is taken turns 2 outer surfaces and is provided with and can is embedded in from drawing wheel 1 and stretches out the radial pattern projection 4 of drawing wheel 1 gap, and throwing silk wheel 2 can along the swing of drawing wheel 1 intrados to make certain angle.Under the throwing silk action of the throwing silk wheel reciprocation cycle of throwing machine structure, raw tow is close to another by a reciprocal bout and transfers the ground throwing of multiple bout on the conveyer belt of below movement.In order to control to throw the density between the uniformity of silk and adjacent precursor, throwing machine structure draw wheel linear velocity be 1100-1200m/min(the present embodiment centerline velocities to be 1160m/min), the throwing silk wheel reciprocally swinging angular range of throwing machine structure is in ± 60 °, conveyer belt width 220cm, makes precursor felt even, neat and density relatively as one man covers whole conveyer belt;
C, prebake: glass fiber precursor is evenly shed on a moving belt through throwing machine structure, conveyer belt is transported to predrying machine with the speed of 9.25m/min precursor felt, and the moisture prebake in precursor, predrying machine length is 5 meters, bake out temperature 80 DEG C;
D, binding agent apply: by the device of curtain type band pumping function, (this device is known device, here repeat no more) on precursor felt, evenly spray polyester adhesive, consumption (quality) and the precursor felt mass ratio of binding agent are 2%, and binding agent is that vaporific spraying is on the surface of precursor felt at normal temperatures;
E, baking and curing: precursor felt at the uniform velocity enters oven for drying by conveyer belt with the speed of 9.25m/min, baking oven divides 4 districts, and the baking oven length in each district is 5 meters, and bake out temperature is respectively temperature, 80 DEG C, 110 DEG C, 125 DEG C, 65 DEG C, make adhesive cures, play the effect of viscose fibre monofilament; Adopt the advantage of segmentation baking and curing be binding agent is dewatered respectively, melting, film-forming, stable;
F, cooling: with the water of 25 DEG C for cooling medium is cooled felt by the metal roller that linear velocity is 9.2m/min, cooling contact surface length is 2m;
G, compacting: make felt smooth-going by the metallic roll of a pair rotation to the pressure that felt applies 6000N/2m, have certain density, keep felt thickness even;
H, cutting edge: the burr of felt are dismissed.
I, cleaning: burr, useless fiber, remaining binder are cleaned out;
J, to cut: continuous felt being cut into length is 240 meters/volume;
K, obtained glass fibre continuous strand felt quality parameters are quality 450 ± 5%g/m
2, thickness 0.48mm, width is 185cm.
The TENSILE STRENGTH producing glass fibre continuous strand felt according to one step processing glass fibre continuous strand felt production technology can reach more than 100N/75mm, and short felt of cutting only has 40N/150mm, in pultrude process, glass fibre continuous strand felt requires to cut into required width according to section bar, after steeping vat, enter mould with surperficial felt, glass fiber yarn, the tractive force on pultrusion production line can be stood and can not rupture.In RTM technique, after glass fibre continuous strand felt is laid on die cavity, close die enters resin in injection, resin is passed to rapidly each position in die cavity along machine direction and keeps glass fibre continuous strand felt shape invariance, and adopt traditional short felt of cutting, fiber is broken up rapidly after resin injection, destroy the shape of the felt laid in advance, cannot be shaping.
Embodiment 2
The present embodiment is substantially the same manner as Example 1, distinctive points: Step d binding agent applies: (this device is known device by dusting device, here repeat no more) on precursor felt, evenly spray hot melt polyester binding agent, consumption (quality) and the precursor felt mass ratio of binding agent are 3.5%, and binding agent is that Powdered spraying is on the surface of precursor felt at normal temperatures.
Baking and curing: precursor felt at the uniform velocity enters oven for drying by conveyer belt with the speed of 9.25m/min, baking oven divides 4 districts, and the baking oven length in each district is 5 meters, and bake out temperature is respectively temperature, 120 DEG C, 150 DEG C, 150 DEG C, 80 DEG C, make adhesive cures, play the effect of viscose fibre monofilament.The advantage of segmentation baking and curing is adopted to be that binding agent is carried out to melting, film-forming respectively, stablizes.
Claims (2)
1. an one step processing glass fibre continuous strand felt production technology, be mainly glass fibre draw-from noble metal bushing out after, glass fibre by with the oiling rolls of sizing agent by pulling wheel drawing fiber precursor, then raw tow is formed by buncher, every Shu Yuansi is integrated by 30-60 root continuous fibers monofilament, it is characterized in that: described processing step is further comprising the steps of:
A, throwing silk: after raw tow pile warp godet roller, enter throwing machine structure, under the throwing silk action of the reciprocation cycle of throwing machine structure, raw tow throwing, on the conveyer belt of below movement, forms the precursor felt covering whole conveyer belt width;
B, prebake: it is that the baking oven of 50 DEG C-250 DEG C carries out prebake that precursor felt continuously enters temperature by conveyer belt;
C, binding agent apply: noted polyester emulsion or polyester powder breast hybrid adhesive are evenly sprayed in felt blanket with the amount accounting for finished product felt 0.5-10Wt% by above-mentioned binding agent by dusting device by the device of curtain type band pumping function;
D, solidification: to be transported in 80 DEG C of-250 DEG C of curing ovens with the speed transmission of 5-25m/min by conveyer belt with the felt blanket of binding agent and to carry out baking and curing, wherein curing oven length is 5-40 rice;
E, cooling: with the water of 5 DEG C-30 DEG C for cooling medium, the metal roller rotated in 5-25m/min linear velocity cools felt, cooling surface contact length 1-5 rice;
F, compacting: transmission speed is 5-25m/mim, make felt smooth-going by the metallic roll of a pair rotation to the pressure that felt applies 1000-10000N/2m;
G, rip cutting: cut out the burr except felt both sides, longitudinally cut into felt simultaneously and meet the width requirement of client to felt;
H: cleaning: burr, useless fiber, remaining binder are cleaned out;
I, bundling; The felt continuously produced is divided according to client and/or packing instructions the monovolume felt being rolled into certain length and diameter;
Linear velocity 800-4000m/min is taken turns in drawing of described throwing machine structure, and the throwing silk wheel reciprocally swinging angular range of throwing machine structure is in ± 60 °;
Described conveyer belt translational speed, conveyor belt of baking oven speed are 5-25m/min;
The diameter of described continuous fibers monofilament is 9-24 μm.
2. one step processing glass fibre continuous strand felt production technology according to claim 1, is characterized in that: glass fibre is thrown on conveyer belt perpendicular to conveyer belt direction by described throwing machine structure, and this conveyer belt is positioned at the below of pulling wheel.
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103290933B (en) * | 2013-07-01 | 2016-01-06 | 中材金晶玻纤有限公司 | A kind of warming plate special glass fiber mat and preparation method thereof |
| CN104195747B (en) * | 2014-08-13 | 2017-05-17 | 山东玻纤集团股份有限公司 | Manufacturing method of glass fiber continuous felt |
| DE102016009679A1 (en) * | 2016-08-10 | 2018-02-15 | Hubert Hergeth | Webber |
| CN106758481B (en) * | 2016-11-25 | 2018-10-23 | 北京化工大学 | A kind of method and device for preparing chopped strand and being continuously orientated felt |
| CN109912880B (en) * | 2017-12-13 | 2022-01-28 | 广州金发碳纤维新材料发展有限公司 | Glass fiber felt reinforced thermoplastic composite material and preparation method thereof |
| CN108560146A (en) * | 2018-05-29 | 2018-09-21 | 江苏九鼎新材料股份有限公司 | A kind of tank furnace method continuous Glass Fiber Mat production system |
| CN108754852A (en) * | 2018-05-29 | 2018-11-06 | 江苏九鼎新材料股份有限公司 | A kind of production method of continuous Glass Fiber Mat |
| CN110240421A (en) * | 2019-07-04 | 2019-09-17 | 江苏九鼎新材料股份有限公司 | A kind of production technology of epoxy type glass fibre continuous felt |
| CN110699858A (en) * | 2019-11-14 | 2020-01-17 | 江苏九鼎新材料股份有限公司 | Method for producing a continuous glass fibre mat for polyurethane reinforcement and use thereof |
| CN112976404A (en) * | 2021-01-19 | 2021-06-18 | 江苏易塑复合新材料有限公司 | Preparation method of non-oriented continuous fiber reinforced polypropylene material |
| CN114592284A (en) * | 2021-04-15 | 2022-06-07 | 江苏长海复合材料股份有限公司 | Preparation process and application of glass fiber continuous felt |
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| CN1382856A (en) * | 2002-04-26 | 2002-12-04 | 南京菲尔特过滤材料有限公司 | Composite felt of chopped and original glass fibres and its making technology |
| CN1629381A (en) * | 2004-08-10 | 2005-06-22 | 泰山玻璃纤维股份有限公司 | Process for making composite fabric needle felt |
| CN101826604A (en) * | 2010-05-28 | 2010-09-08 | 中材金晶玻纤有限公司 | Battery separator felt with low reduzate and ion contents and preparation method thereof |
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Application publication date: 20130213 Assignee: Shandong Jiuding New Material Co., Ltd. Assignor: Jiangsu Jiuding New Material Co., Ltd. Contract record no.: 2019320000172 Denomination of invention: Production technology for forming continuous glass fiber strand mat by one-step method Granted publication date: 20160413 License type: Common License Record date: 20190610 |