CN102926133A - Production technology for forming continuous glass fiber strand mat by one-step method - Google Patents
Production technology for forming continuous glass fiber strand mat by one-step method Download PDFInfo
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- CN102926133A CN102926133A CN201210461214XA CN201210461214A CN102926133A CN 102926133 A CN102926133 A CN 102926133A CN 201210461214X A CN201210461214X A CN 201210461214XA CN 201210461214 A CN201210461214 A CN 201210461214A CN 102926133 A CN102926133 A CN 102926133A
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Abstract
The invention relates to a production technology for forming a continuous glass fiber strand mat by a one-step method, and the production technology is characterized in that the production technology comprises the steps that glass liquid flowing out of a melting furnace is drawn into a continuous fiber strand; the continuous fiber strand is divided into a plurality of clusters of strands after passing through an oiling device and a cluster dividing device; the strands are wound on a fiber guiding roll, then enter a fiber throwing mechanism and are thrown onto a conveying belt moving below the strands due to continuous swinging of the fiber throwing mechanism, thereby forming a strand mat covering the whole width of the conveying belt; and the strand mat enters an oven to be dried continuously by the conveying belt, and is wound by a winding device after being dried. With the adoption of the production method to manufacture the continuous glass fiber strand mat, the energy consumption is low; the yield is high; the manufacturing cost is low; and the strands of the strand mat are bound by an overlapping mechanical linkage effect and a little adhesive; and the strand mat has the advantages of isotropy, good guiding property, washing resistance, good mould covering property, high mechanical strength, facilitation of bubble discharge and the like, and is widely applied in forming technologies of fiberglass reinforced plastics, such as pultrusion, mould pressing, winding, hand pasting and 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, leading good fluidity, resistance to erosion, cover that mould is good, mechanical strength is high, easily discharge the advantages such as bubble, be widely used in the forming process of glass fiber reinforced plastics such as pultrusion, mold pressing, winding, hand paste, vacuum forming, the article of fiber reinforced plastics that strengthens with this base material is 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.
China's glass fibre continuous strand felt adopts the two-step method moulding process at present, and it has drawn first cake, then transports creel to, introduces and throws the moulding of silk forming machine.This kind technique has produces flexibly, with opening with stopping, changes easily advantage of kind.But have 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 provides 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, throw silk: enter the throwing machine structure behind the raw tow pile warp godet roller, under the throwing silk action of the reciprocation cycle of throwing machine structure, the raw tow throwing below on the mobile conveyer belt, form the precursor felt that covers whole conveyer belt width;
B, prebake: it is that 50 ℃-250 ℃ baking oven carries out prebake that the precursor felt continuously enters temperature by conveyer belt;
C, binding agent apply: the device by curtain type band pumping function with polyester emulsion or polyester powder breast hybrid adhesive/by dusting device with polyester pulvis binding agent evenly being sprayed on the felt base with 0.5-10Wt% amount (binding agent accounts for the ratio of finished product felt);
D, curing: be transported to the speed transmission of 5-25m/min by conveyer belt with the felt base of binding agent and carry out baking and curing (curing oven length 5-40 rice) in 80 ℃ of-250 ℃ of curing ovens;
E, cooling: take 5 ℃-30 ℃ water as cooling medium, the metal roller that rotates in the 5-25m/min linear velocity cools off cooling surface contact length 1-5 rice to felt;
F, compacting: transmission speed is 5-25m/min, makes felt smooth-going by the metallic roll of a pair of rotation to the pressure that felt applies 1000-10000N/2m;
G, rip cutting: cut out the burr except the felt both sides, felt is vertically cut into satisfy the client to the width requirement of felt simultaneously;
H, cleaning: burr, useless fiber, residual binding agent are cleaned out;
I, bundling; Divide the monovolume that is rolled into certain-length and diameter felt according to client and/or packing instructions with the felt that continuously produces.
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 μ m.
Further, described throwing machine structure is thrown glass fibre on the conveyer belt perpendicular to the conveyer belt direction, and this conveyer belt is positioned at the below of pulling wheel.
The invention has the advantages that: adopt the method to make glass fibre continuous strand felt, consume energy low, output is large, production cost is low, 4000 tons of continuous felts of a production line annual output.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 the thickness 0.2-5mm, have isotropism, lead good fluidity, resistance to erosion, cover that mould is good, mechanical strength is high, easily discharge the advantages such as bubble, be widely used in the forming process of glass fiber reinforced plastics such as pultrusion, mold pressing, winding, hand paste, vacuum forming.
Description of drawings
Fig. 1 is glass fibre continuous strand felt production of the present invention throwing machine structure front view.
Fig. 2 is glass fibre continuous strand felt production of the present invention throwing machine structure side view.
The specific embodiment
For example be used for the one step processing glass fibre continuous strand felt LPM450-185 of pultrude process, grammes per square metre is 450 g/m
2, width 185cm, long 240 meters of volume, thickness 0.48mm.
In the present embodiment, glass metal is formed by the frit melting, applies sizing agent (being comprised of silane coupler, polyester film forming agent and lubricant) through the oiling rolls surface.Binding agent is polyester-type pulvis binding agent (can for 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 ℃---melts in the melting furnace of 1350 ℃ of high temperature, flow out and be pulled into the continuous fibers precursor by 560 hole noble metal bushings, fiber precursor is behind the conventional coating of oiling rolls sizing agent, be divided into some Shu Yuansi by beam splitter again, every Shu Yuansi is comprised of 40 monofilament, and the diameter control of monofilament is 18 μ m;
B, throwing silk: enter the throwing machine structure behind the raw tow pile warp godet roller, the structure of throwing machine structure, as shown in Figure 1, 2, but comprise drawing wheel 1 and throwing silk wheel 2 of rotation, drawing wheel 1 periphery to be evenly distributed with some slits 3, this slit 3 is along drawing wheel 1 periphery to extend axially, throwing silk wheel 2 is installed in and draws in the wheel 1, form a similar internal gear pair structure with drawing wheel 1, throwing silk wheel 2 outer surfaces are provided with can be from drawing wheel 1 to be embedded in and stretching out the radial pattern projection 4 of drawing wheel 1 slit, and throwing silk wheel 2 can be along drawing wheel 1 intrados to do the swing of certain angle.Under the throwing silk action of the throwing silk of throwing machine structure wheel reciprocation cycle, raw tow by a reciprocal bout be close to another transfer to the ground throwing of multiple bout below on the conveyer belt of movement.In order to control the density between the uniformity of throwing silk and the adjacent precursor, the throwing machine structure draw the wheel linear velocity be 1100-1200m/min (linear velocity is 1160m/min in the present embodiment), the throwing silk wheel reciprocally swinging angular range of throwing machine structure is in ± 60 °, conveyer belt width 220cm, make the precursor felt evenly, neat and density relatively as one man covers whole conveyer belt;
C, prebake: glass fiber precursor is evenly shed on conveyer belt through the throwing machine structure, and conveyer belt is transported to predrying machine to the precursor felt with the speed of 9.25m/min, and the moisture prebake in the precursor, predrying machine length is 5 meters, 80 ℃ of bake out temperatures;
D, binding agent apply: (this device is known device to the device by curtain type band pumping function, here repeat no more) the even polyester adhesive that sprays on the precursor felt, the consumption of binding agent (quality) is 2% with precursor felt mass ratio, and binding agent is vaporific spraying at normal temperatures on the surface of precursor felt;
E, baking and curing: the precursor felt at the uniform velocity enters oven for drying by conveyer belt with the speed of 9.25m/min, and baking oven divides 4 districts, and the baking oven length in each district is 5 meters, and bake out temperature is respectively temperature, 80 ℃, 110 ℃, 125 ℃, 65 ℃, make adhesive cures, play the effect of viscose fibre monofilament; The advantage that adopts the segmentation baking and curing be to binding agent dewater respectively, melting, film-forming, stable;
F, cooling: felt is cooled off by the metal roller of rotational line speed as 9.2m/min take 25 ℃ water as cooling medium, cooling contact-making surface length is 2m;
G, compacting: the metallic roll by a pair of rotation makes felt smooth-going to the pressure that felt applies 6000N/2m, has certain density, keeps the felt even thickness;
H, cutting edge: the burr of felt are dismissed.
I, cleaning: burr, useless fiber, residual binding agent are cleaned out;
J, cut: it is 240 meters/volume that continuous felt is cut into length;
K, the glass fibre continuous strand felt quality parameters that makes are quality 450 ± 5%g/m
2, thickness 0.48mm, width are 185cm.
The TENSILE STRENGTH of producing glass fibre continuous strand felt according to one step processing glass fibre continuous strand felt production technology can reach more than the 100N/75mm, and chopped felt only has 40N/150mm, in pultrude process, glass fibre continuous strand felt requires to cut into needed width according to section bar, behind steeping vat, enter mould with surperficial felt, glass fiber yarn, can stand the tractive force on the pultrusion production line and can not rupture.In RTM technique, close die had been injected into into resin after glass fibre continuous strand felt was laid on die cavity, resin is passed to rapidly each position in the die cavity and keeps glass fibre continuous strand felt shape invariance along machine direction, and adopt traditional chopped felt, break up rapidly fiber behind the resin injection, destroyed the shape of laying in advance the felt of entering, can't moulding.
The present embodiment is substantially the same manner as Example 1, distinctive points: d step binding agent applies: (this device is known device by dusting device, here repeat no more) the even hot melt polyester binding agent that sprays on the precursor felt, the consumption of binding agent (quality) is 3.5% with precursor felt mass ratio, and binding agent is Powdered spraying at normal temperatures on the surface of precursor felt.
Baking and curing: the precursor felt at the uniform velocity enters oven for drying by conveyer belt with the speed of 9.25m/min, and baking oven divides 4 districts, and the baking oven length in each district is 5 meters, and bake out temperature is respectively temperature, 120 ℃, 150 ℃, 150 ℃, 80 ℃, make adhesive cures, play the effect of viscose fibre monofilament.The advantage that adopts the segmentation baking and curing is that binding agent is carried out respectively melting, film-forming, stable.
Claims (5)
1. one step processing glass fibre continuous strand felt production technology, be mainly glass fibre to draw-from the noble metal bushing out after, glass fibre by with the oiling rolls of sizing agent by pulling wheel drawing fiber precursor, then form raw tow by buncher, every Shu Yuansi is integrated by 30-60 root continuous fibers monofilament, and it is characterized in that: described processing step is further comprising the steps of:
A, throw silk: enter the throwing machine structure behind the raw tow pile warp godet roller, under the throwing silk action of the reciprocation cycle of throwing machine structure, the raw tow throwing below on the mobile conveyer belt, form the precursor felt that covers whole conveyer belt width;
B, prebake: it is that 50 ℃-250 ℃ baking oven carries out prebake that the precursor felt continuously enters temperature by conveyer belt;
C, binding agent apply: the device by curtain type band pumping function with polyester emulsion or polyester powder breast hybrid adhesive/by dusting device with polyester pulvis binding agent evenly being sprayed on the felt base with 0.5-10Wt% amount (binding agent accounts for the ratio of finished product felt);
D, curing: be transported to the speed transmission of 5-25m/min by conveyer belt with the felt base of binding agent and carry out baking and curing (curing oven length 5-40 rice) in 80 ℃ of-250 ℃ of curing ovens;
E, cooling: take 5 ℃-30 ℃ water as cooling medium, the metal roller that rotates in the 5-25m/min linear velocity cools off cooling surface contact length 1-5 rice to felt;
F, compacting: transmission speed is 5-25m/min, makes felt smooth-going by the metallic roll of a pair of rotation to the pressure that felt applies 1000-10000N/2m;
G, rip cutting: cut out the burr except the felt both sides, felt is vertically cut into satisfy the client to the width requirement of felt simultaneously;
H, cleaning: burr, useless fiber, residual binding agent are cleaned out;
I, bundling; Divide the monovolume that is rolled into certain-length and diameter felt according to client and/or packing instructions with the felt that continuously produces.
2. a kind of one step processing glass fibre continuous strand felt production technology according to claim 1 is characterized in that: described throwing machine structure draw wheel linear velocity 800-4000m/min, the throwing silk wheel reciprocally swinging angular range of throwing machine structure is in ± 60 °.
3. a kind of one step processing glass fibre continuous strand felt production technology according to claim 1, it is characterized in that: described conveyer belt translational speed, conveyor belt of baking oven speed are 5-25m/min.
4. one step processing glass fibre continuous strand felt production technology according to claim 1, it is characterized in that: the diameter of described continuous fibers monofilament is 9-24 μ m.
5. one step processing glass fibre continuous strand felt production technology according to claim 1, it is characterized in that: described throwing machine structure is thrown glass fibre on the conveyer belt perpendicular to the conveyer belt direction, and this conveyer belt is positioned at the below of pulling wheel.
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103290933A (en) * | 2013-07-01 | 2013-09-11 | 中材金晶玻纤有限公司 | Glass fiber mat special for insulation board and production method thereof |
| CN104195747A (en) * | 2014-08-13 | 2014-12-10 | 山东玻纤集团股份有限公司 | Manufacturing method of glass fiber continuous felt |
| CN106758481A (en) * | 2016-11-25 | 2017-05-31 | 北京化工大学 | It is a kind of to prepare the method and device that chopped strand is continuously orientated felt |
| CN107723928A (en) * | 2016-08-10 | 2018-02-23 | 休伯特·赫格思 | Non-woven fabric forms machine |
| 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 |
| CN109912880A (en) * | 2017-12-13 | 2019-06-21 | 广州金发碳纤维新材料发展有限公司 | A kind of glass fiber mat reinforced thermoplastic composite and preparation method thereof |
| 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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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN103290933A (en) * | 2013-07-01 | 2013-09-11 | 中材金晶玻纤有限公司 | Glass fiber mat special for insulation board and production method thereof |
| CN104195747A (en) * | 2014-08-13 | 2014-12-10 | 山东玻纤集团股份有限公司 | Manufacturing method of glass fiber continuous felt |
| 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 |
| CN107723928A (en) * | 2016-08-10 | 2018-02-23 | 休伯特·赫格思 | Non-woven fabric forms machine |
| 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 |
| CN106758481A (en) * | 2016-11-25 | 2017-05-31 | 北京化工大学 | It is a kind of to prepare the method and device that chopped strand is continuously orientated felt |
| CN109912880A (en) * | 2017-12-13 | 2019-06-21 | 广州金发碳纤维新材料发展有限公司 | A kind of glass fiber mat reinforced thermoplastic composite and preparation method thereof |
| 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 |
| 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 |
| 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 |
| 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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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 |