CN103192584A - Preparation method and device of special membrane material for mining air drum - Google Patents
Preparation method and device of special membrane material for mining air drum Download PDFInfo
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- CN103192584A CN103192584A CN2013101336617A CN201310133661A CN103192584A CN 103192584 A CN103192584 A CN 103192584A CN 2013101336617 A CN2013101336617 A CN 2013101336617A CN 201310133661 A CN201310133661 A CN 201310133661A CN 103192584 A CN103192584 A CN 103192584A
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Abstract
The invention discloses a preparation method of a special membrane material for a mining air drum. The preparation method comprises the following steps of: unreeling base cloth; selecting raw material components for preparing the covering membrane material, and then burdening and mixing; respectively plasticizing the covering membrane material through two extruders, then outflowing from two tape casting molds to form hot melt membrane, simultaneously casting the hot melt membrane on the two sides of the base cloth by the two tap casting molds, and carrying out hot melt composition by a hot melt composition device; and drawing and cooling the membrane material subjected to hot melt composition to obtain the finished product. Simultaneously, the invention discloses a device for preparing the special membrane material for the mining air drum. Compared with the prior art, the method and the device have the characteristics of little investment and energy saving. The covering membrane material is simultaneously cast on the two sides of the preheated base cloth, so that one-time molding is realized, heating composition only needs to be carried out once, and the operation of repeated heating and cooling is omitted, thus lots of heat and manual labor are saved, the cost is also saved, and moreover, the purpose of energy saving is realized.
Description
Technical field
The present invention relates to preparation method and the device of the special-purpose film material of mining air duct, preparation method and device thereof that particularly can the special-purpose film material of one-time formed mining air duct.
Background technology
At present, the special-purpose film material of mining air duct generally all is to adopt the film material that completes earlier, carry out the operation of pad pasting again, such operation need be carried out twice heat respectively and be melted moulding when making film material and pad pasting, not only lose time, and need to consume a large amount of heat energy, thereby can cause the increase of cost, do not meet country for the requirement of industrial energy-saving and emission-reduction.
Summary of the invention
The object of the present invention is to provide preparation method and the device thereof of the special-purpose film material of a kind of one-time formed mining air duct.
According to an aspect of the present invention, the preparation method of the special-purpose film material of mining air duct that provides, this method comprises the steps:
Base cloth is unreeled;
Prepare burden, mix after choosing the raw material components for preparing covering material;
Covering material is plastified the back respectively by two extruders to flow out from two curtain coating moulds and becomes heat and melt the heat of state and melt film, be cast to the both sides of base cloth simultaneously by two curtain coating moulds, the heat that two-layer heat is melted state melt film clip base cloth totally three layers together introduce heat and melt set composite, melt in material heat under the effect of viscosity and compound pair roller and base cloth and covering material to be carried out disposable thermal melt compound;
The film material that heat is melted after compound makes finished product through traction, cooling.
Its beneficial effect of the present invention is, compare to the preparation method of the special-purpose film material of traditional mining air duct, the present invention possesses little, the energy-conservation characteristics of investment, the covering material after the plasticizing is cast to simultaneously the both sides of base cloth, realized one-shot forming, only need carry out a heat hot and melt, save and repeated the operation of heating and cooling, thereby can save a large amount of heat and artificial, thereby also just saved cost, realized purpose of energy saving simultaneously.
In some embodiments, base cloth is dacron fabric, and base cloth carries out preheating in the middle of the process that unreels, and the temperature range of preheating is 105～115 degrees centigrade.Its beneficial effect is, base cloth is carried out preheating, can better carry out heat and melt compound working procedure.
In some embodiments, the raw material components of covering material comprises Corvic, plasticizer, stabilizing agent, fire retardant, antistatic additive, filler, pigment, binding agent and mildew-resistant auxiliary agent.Its beneficial effect is, the film material that is obtained by these covering materials has outside the traditional performances such as high-strength mechanical performance, surperficial cleaning characteristic, flexibility, also effectively improves the antistatic behaviour that improves the special-purpose film material of mining air duct, anti-flammability, sealing, chemical resistance, corrosion resistance, antiseepage, performance such as withstand voltage.
In some embodiments, Corvic is P1300;
Plasticizer is Reomol, and Reomol comprises diisooctyl phthalate, diisononyl phthalate;
Stabilizing agent is powdery or liquid composite stabilizing agent, and powdery or liquid composite stabilizing agent comprise Ba/Zn or Ca/Zn;
Fire retardant is antimony oxide or aluminium hydroxide;
Antistatic additive is the quaternary ammonium salt antistatic additive;
Filler is inorganic filler, comprises calcium carbonate, barium sulfate or wollastonite;
Be corresponding pigment of all kinds;
Binding agent is isocyanates;
The mildew-resistant auxiliary agent is that antibiotic anti-mildew becomes auxiliary agent.
In some embodiments, when the raw material components with covering material stirs:
At first, Corvic, plasticizer, filler are dropped into mixer simultaneously, and carry out stirring at low speed, the range of speeds of stirring at low speed is n=400～450/min;
Then, fire retardant, antistatic additive, stabilizing agent, mildew-resistant auxiliary agent, pigment and binding agent are dropped in the mixer successively, carry out high-speed stirred again.
In some embodiments, the weight ratio that drops into fire retardant, antistatic additive, stabilizing agent, mildew-resistant auxiliary agent, pigment and binding agent and plasticizer in the mixer is 1: 1, fire retardant, antistatic additive, stabilizing agent, mildew-resistant auxiliary agent, pigment and binding agent are all earlier respectively through stirring and grind the formation slurry, the slurry that obtains is made different types of bag that feeds intake of packing with PVC film bag in manual weighing's mode respectively again, drops into mixer successively by the operative employee then.
In some embodiments, under the high-speed stirred state, when the temperature of the raw material components of covering material is increased to 115～120 degrees centigrade, changes stirring at low speed again into and form and mediate material, the range of speeds of stirring at low speed is n=400～450/min.
According to another aspect of the present invention, it is a kind of for the device of making the special-purpose film material of mining air duct that the present invention also provides, comprise the base cloth unwinding device, first draw-gear, two proportioners, two extruders, two curtain coating moulds, heat being oppositely arranged are melted set composite, cooling device and second draw-gear, wherein
The base cloth unwinding device is connected with first draw-gear by base cloth, and first draw-gear is incorporated into the base cloth of base cloth unwinding device supply between two curtain coating moulds that are oppositely arranged vertically downward by first draw-gear;
Proportioner is connected with two extruders;
Two described extruders connect with corresponding curtain coating mould respectively, and extruder is delivered in the curtain coating mould of two correspondences after covering material is plastified respectively, and curtain coating goes out heat and melts the heat of state and melt film;
Two curtain coating moulds are positioned at the both sides of base cloth vertically downward;
Heat melt set composite be positioned at the curtain coating mould under, the heat that the heat that base cloth and base cloth both sides curtain coating are gone out is melted state is melted film and is carried out compound;
The input port of cooling device is connected with the delivery outlet that heat is melted set composite, and the film material that cooling device melts set composite output to heat carries out cooling processing;
Second draw-gear is positioned at the rear of cooling device, and the film material that heat is melted set composite output is cooled off by cooling device under the traction of second draw-gear.
Simultaneously, at the rear of second draw-gear wrap-up can be set again, cooled film material carries out rolling by wrap-up.
The invention has the beneficial effects as follows, use this device to cooperate the preparation method of the special-purpose film material of mining air duct, only need carry out once heat melt compound, effectively conserve energy consumption, energy savings.
In some embodiments, the top of curtain coating mould also is provided with preheater, and base cloth passes through from top to bottom from the middle part of preheater.
In some embodiments, also comprise the 3rd draw-gear and frame, heat is melted set composite and is positioned at frame, first draw-gear is positioned at the top of frame, base cloth is involved from the base cloth unwinding device by the 3rd draw-gear, draws to the top of frame by first draw-gear again and transfers to vertically downward and carrying.Its beneficial effect is, needs carry out heat melt compound in, the direction of transfer of base cloth is transferred to vertically downward, can better make things convenient for the covering material in the curtain coating mould of base cloth both sides being cast under the gravity effect on two surfaces of base cloth, thereby can guarantee better that heat melts compound effect.
Description of drawings
Fig. 1 is preparation method's the flow chart of the special-purpose film material of mining air duct of an embodiment of the present invention;
Fig. 2 is the structural representation of the device that is used for the special-purpose film material of the mining air duct of making of an embodiment of the present invention.
Fig. 3 is the vertical view of the device that is used for the special-purpose film material of the mining air duct of making of an embodiment of the present invention.
Fig. 4 is the curtain coating recombination process schematic diagram of the device that is used for the special-purpose film material of the mining air duct of making of an embodiment of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing invention is described in further detail.
As shown in Figure 1, present embodiment provides the preparation method of the special-purpose film material of a kind of mining air duct, this method comprises the steps: base cloth is unreeled operation and preheating (step S001), base cloth is selected 1100 * 1100 dtexs for use in the present embodiment, 20 * 20/ inches, the base cloth that L1:1 is woven, when unreeling, should be noted that the control base cloth vertically, horizontal tension evenly, stablize smooth.Base cloth can be selected dacron fabric for use, preferably can carry out preheating to base cloth in the middle of the process that base cloth unreels, and the temperature range of base cloth preheating is 105～115 degrees centigrade.
Prepare burden, mix (step S002) after choosing the raw material components of covering material, wherein the raw material components of covering material comprises Corvic, plasticizer, stabilizing agent, fire retardant, antistatic additive, filler, pigment, binding agent and mildew-resistant auxiliary agent.Wherein Corvic is selected P1300 for use; Plasticizer is selected Reomol for use, and Reomol comprises diisooctyl phthalate, diisononyl phthalate; Stabilizing agent is selected powdery or liquid composite stabilizing agent for use, and powdery or liquid composite stabilizing agent comprise Ba/Zn or Ca/Zn; Fire retardant is selected antimony oxide or aluminium hydroxide for use; Antistatic additive is selected the quaternary ammonium salt antistatic additive for use; Filler is selected inorganic filler for use, comprises calcium carbonate, barium sulfate or wollastonite; Pigment is selected corresponding pigment of all kinds for use; Binding agent is selected isocyanates for use; The antibiotic anti-mildew of mildew-resistant selection of auxiliary becomes auxiliary agent.The raw material components of the covering material chosen is evenly mixed, and go out the heat that two parts of heat melt state by two extruders plasticizing backs and corresponding two curtain coating mould curtain coatings that are connected and melt film.The heat that heat is melted state is melted film and finally can be compounded on two surfaces of base cloth, and wherein one side is underlying membrane, and another side is the surface layer film.
The proportioning of the raw material components of present embodiment is showed in the table, (all component raw material are commercially available industrial raw material in the table)
Wherein, pigment select for use and the color of the product that deal prepares as required need be prepared accordingly.
When the raw material components with covering material stirs:
At first, Corvic, plasticizer, filler are dropped into mixer simultaneously, and carry out stirring at low speed, the range of speeds of stirring at low speed is n=400～450/min;
Then, fire retardant, antistatic additive, stabilizing agent, mildew-resistant auxiliary agent, pigment and binding agent are dropped in the mixer successively, carry out high-speed stirred again.
Under the high-speed stirred state, when the temperature of the raw material components of covering material is increased to 115-120 degree centigrade, changes stirring at low speed again into and form and mediate material, the range of speeds of described stirring at low speed is n=400～450/min.
The covering material of the material form of kneading is passed in the extruder, and the covering material after the extruder plasticizing melts the form curtain coating of film to the both sides (step S003) of base cloth, as surface layer film and underlying membrane by the heat that the curtain coating mould melts state with heat; Simultaneously, the base cloth of preheating will melt surface layer film and the underlying membrane that film makes with the heat that the heat that base cloth both sides curtain coating goes out is melted state and carry out compound (step S004); Once-combined moulding makes the film material of moulding.The shaping membrane material is to comprise three-decker: the compound film material of surface layer film, base cloth and underlying membrane.
Film material after the moulding is cooled off, cuts edge (step S005) by traction, and the special-purpose film material of moulding can cool off again, draws, cut edge, and does typing and handles.
Film material after the cooling side cut is counted a yard rolling (step S006), and the special-purpose film material of typing forms the special-purpose film material of mining air duct finally by crossing metering, rolling, check and packing.
Arrive shown in Figure 4 as Fig. 2, it is a kind of for the device of making the special-purpose film material of mining air duct that the present invention also provides, comprise base cloth unwinding device 100, first draw-gear 200, two proportioner (not shown)s, two extruders 300, two curtain coating moulds 400, heat being oppositely arranged are melted set composite 500, cooling device 600, second draw-gear 700 and wrap-up 800, wherein
Base cloth unwinding device 100 comprises support and base cloth rotating roller, and the base cloth rotating roller can rotate and be positioned on the support, and the base cloth 001 on the base cloth unwinding device 100 is wound on the base cloth rotating roller.First draw-gear 200 and second draw-gear 700 can adopt the cloth draw-gear of prior art.
Proportioner can select for use the proportioning machine that has the function of mixing in the middle of the prior art to get final product, and its function that need realize is, mixes after choosing the raw material components of preparation covering material.Two extruders 300 are connected with corresponding curtain coating mould 400 respectively, and extruder 300 can adopt the extruder of prior art to get final product, and for example can adopt tapered double screw extruder.Curtain coating mould 400 adopts can realize that the mould of width curtain coating is advisable the rack-style curtain coating mould that for example can adopt Taizhou city Huangyan absolute sincerity casting Co., Ltd to produce.
Heat is melted and is provided with three composite rolls 501 in the set composite 500, one of three composite roll 501 centres for rotating counterclockwise, other two for clockwise rotating, wherein two composite rolls 501 just are positioned at the below of curtain coating mould, and heat that these two composite rolls 501 and base cloth and heat are melted state is melted the linear velocity of intersection of film for vertically downward.Cooling device 600 comprises two chill rolls 601 that are sticked mutually and put, and wherein the level height of a chill roll 601 will be higher than the level height of another root chill roll 601, the direction of rotation of two chill rolls 601.
Base cloth unwinding device 100 is connected with first draw-gear 200 by base cloth, first draw-gear 200 is incorporated into the base cloth 001 of base cloth unwinding device 100 supply by first draw-gear 200 between two curtain coating moulds 400 that are oppositely arranged vertically downward, and the traffic direction by 200 pairs of base cloths 001 of first draw-gear carries out a change;
Proportioner is communicated with two extruders 300, and covering material is after preparing burden in the proportioner, mixing, and covering material will be extruded after will plastifying from two extruders 300;
Two extruders 300 are connected with corresponding curtain coating mould 400 respectively, and the covering material after two extruders 300 will plastify is delivered in the curtain coating mould 400 of two correspondences, and curtain coating goes out heat and melts the heat of state and melt film;
Two curtain coating moulds 400 are positioned at the both sides of base cloth 001 vertically downward, base cloth 001 can make things convenient for covering material in the curtain coating mould 400 better to sentence heat from the die orifice 401 of curtain coating mould 400 under the gravity effect and melt the heat of state and melt the mode curtain coating of film to the both sides of base cloth 001 vertically downward;
Heat melt set composite 500 be positioned at curtain coating mould 400 under, the heat that the heat of base cloth 001 and base cloth both sides is melted state is melted film 002 and is carried out compound, melt on the set composite 500 by temperature controller 160 is set in heat, control heat by temperature controller 160 and melt the state that temperature in the set composite 500 keep a relatively stable and balance, thereby the heat that guarantees a best is melted compound effect.The heat that the heat of base cloth 001 and both sides is melted state is melted film 002 and is passed through in the middle of three composite rolls 501, melts by the heat of composite roll 501 and rotates output again after compound;
The input port of cooling device 600 is connected with the delivery outlet that heat is melted set composite 500, the film material that 600 pairs of heat of cooling device are melted set composite 500 output carries out cooling processing, and the film material that heat is melted set composite 500 outputs is walked around two chill rolls, 601 backs with the S type and realized cooling down operations;
The cooled film material of second draw-gear, 700 tractions carries out rolling by wrap-up 800; for example meter sign indicating number device 130 and trimming device 140 can be set before second draw-gear 700 again; determine the length of the film material of wrap-up 800 rolling by meter sign indicating number device 130; simultaneously; can prune the neat and standard of diaphragm material to the edge of film material accordingly by trimming device 140.
Use this device to cooperate the preparation method of the special-purpose film material of mining air duct, only need carry out once heat and melt and compoundly can make finished product, effectively conserve energy consumption, energy savings.
In certain embodiments, the top of described curtain coating mould 400 also is provided with preheater 110, and described base cloth 001 passes through from preheater 110.By base cloth 001 is carried out warm-up operation, can better carry out follow-up heat and melt compound working procedure.
Simultaneously, this device also comprises the 3rd draw-gear 900 and frame 120, described heat is melted set composite 500 and is positioned at frame 120, first draw-gear 200 is positioned at the top of frame 120, base cloth is involved by the 3rd draw-gear 900, draws to the top of frame 120 by first draw-gear 200 again and transfers to vertically downward and carrying.Needs carry out heat melt compound in, the direction of transfer of base cloth is transferred to vertically downward, can better make things convenient for the covering materials in the curtain coating mould 400 of base cloth both sides being cast under the gravity effect on two surfaces of base cloth, thereby can guarantee better that heat melts compound effect.Simultaneously, on the next door of the 3rd draw-gear 900 an infrared ray opposite side device 150 can also be set again, detect and adjust the phenomenon of base cloth skew by infrared induction technology.
Preparation method and the device of the special-purpose film material of mining air duct provided by the invention are made having the following advantages of the special-purpose film material of mining air duct:
1, The tape casting heat is melted the preparation method of the special-purpose film material of mining air duct of composite molding, compares to technology preparation methods such as traditional calendering/composite algorithm technology and coated method technology, and investment only is 1/2～2/3 of conventional method, and energy resource consumption only is 1/2 of conventional method;
2, goods raw material wide adaptability, The tape casting heat melt the composite molding raw material and are adapted to multiple materials such as PVC, PE, PET, EVA; (calendering/composite algorithm technology and coated method technology only are adapted to the PVC material)
3, heat is melted the special-purpose film section product of mining air duct of composite molding, plasticizing fully, rerum natura is superior, air-tightness good, possesses anticorrosive, antiseepage, withstand voltage these three most important physical indexs of mining air duct;
4, heat is melted the special-purpose film section product of mining air duct of composite molding, handles through mildew-resistant, makes air duct long-time use and the price reduction that undergoes no deterioration increases the service life under wet environment;
5, heat is melted the special-purpose film section product of mining air duct of composite molding, and density is low relatively, in light weight.Mining air duct with its making namely has following advantage: it is in light weight, volume is little, is easy to carrying; But the structure deft design of system is installed rapid, easy; Because mining air duct soft material is made, in use be difficult for crust, air-tightness is fabulous, and is easy to maintenance, just in case appearance is damaged, can adopt glue special to bind rapidly.
Above-described only is some embodiments of the present invention.For the person of ordinary skill of the art, under the prerequisite that does not break away from the invention design, can also make some distortion and improvement, these all belong to the protection domain of invention.
Claims (10)
1. the preparation method of the special-purpose film material of mining air duct is characterized in that this method comprises the steps:
Base cloth is unreeled;
Prepare burden, mix after choosing the raw material components for preparing covering material;
Covering material is plastified the back respectively by two extruders to flow out from two curtain coating moulds and becomes heat and melt the heat of state and melt film, be cast to the both sides of base cloth simultaneously by two curtain coating moulds, the heat that two-layer heat is melted state melt film clip base cloth totally three layers together introduce heat and melt set composite, melt in material heat under the effect of viscosity and compound pair roller and base cloth and covering material to be carried out disposable thermal melt compound;
Heat is melted film material after compound make finished product after through traction, cooling.
2. the preparation method of the special-purpose film material of mining air duct according to claim 1 is characterized in that described base cloth is dacron fabric, and described base cloth carries out preheating in the middle of the process that unreels, and the temperature range of preheating is 105～115 degrees centigrade.
3. the preparation method of the special-purpose film material of mining air duct according to claim 1, it is characterized in that the raw material components of described covering material comprises Corvic, plasticizer, stabilizing agent, fire retardant, antistatic additive, filler, pigment, binding agent and mildew-resistant auxiliary agent.
4. the preparation method of the special-purpose film material of mining air duct according to claim 3 is characterized in that,
Described plasticizer is Reomol;
Described stabilizing agent is powdery or liquid composite stabilizing agent;
Described fire retardant is antimony oxide or aluminium hydroxide;
Described antistatic additive is the quaternary ammonium salt antistatic additive;
Described filler is inorganic filler;
Described pigment is corresponding pigment of all kinds;
Described binding agent is isocyanates;
Described mildew-resistant auxiliary agent is that antibiotic anti-mildew becomes auxiliary agent.
5. the preparation method of the special-purpose film material of mining air duct according to claim 3 is characterized in that,
When the raw material components with covering material stirs:
At first, described Corvic, plasticizer, filler are dropped into mixer simultaneously, and carry out stirring at low speed, the range of speeds of stirring at low speed is n=400～450/min;
Then, fire retardant, antistatic additive, stabilizing agent, mildew-resistant auxiliary agent, pigment and binding agent are dropped in the mixer successively, carry out high-speed stirred again.
6. the preparation method of the special-purpose film material of mining air duct according to claim 5, it is characterized in that, the weight ratio that drops into fire retardant, antistatic additive, stabilizing agent, mildew-resistant auxiliary agent, pigment and binding agent and plasticizer in the mixer is 1: 1, described fire retardant, antistatic additive, stabilizing agent, mildew-resistant auxiliary agent, pigment and binding agent are all earlier respectively through stirring and grind the formation slurry, the slurry that obtains is made different types of bag that feeds intake of packing with PVC film bag in manual weighing's mode respectively again, drops into mixer successively by the operative employee then.
7. the preparation method of the special-purpose film material of mining air duct according to claim 6, it is characterized in that, under the high-speed stirred state, when the temperature of the raw material components of covering material is increased to 115～120 degrees centigrade, change stirring at low speed again into and form the kneading material, the range of speeds of described stirring at low speed is n=400～450/min.
8. device of be used for making the special-purpose film material of mining air duct, it is characterized in that, comprise base cloth unwinding device (100), first draw-gear (200), two proportioners, two extruders (300), two the curtain coating moulds (400), the heat that are oppositely arranged are melted set composite (500), cooling device (600) and second draw-gear (700):
Described base cloth unwinding device (100) is connected with first draw-gear by base cloth, and first draw-gear (200) is incorporated into the base cloth (001) of base cloth unwinding device (100) supply between two the curtain coating moulds (400) that are oppositely arranged vertically downward;
Two described proportioners are connected with two extruders (300);
Two described extruders (300) connect with corresponding curtain coating mould (400) respectively, and the covering material after extruder (300) will plastify is delivered to respectively in the curtain coating mould (400) of two correspondences, and curtain coating goes out heat and melts the heat of state and melt film (002);
Two described curtain coating moulds (400) are positioned at the both sides of base cloth (001) vertically downward;
Described heat melt set composite (500) be positioned at curtain coating mould (400) under, the heat that the heat that base cloth and base cloth both sides curtain coating are gone out is melted state is melted film (002) and is carried out compound;
The input port of described cooling device (600) is connected with the delivery outlet that heat is melted set composite (500), and the film material that cooling device (600) melts set composite output to heat carries out cooling processing;
Described second draw-gear (700) is positioned at the rear of cooling device (600), and the film material that heat is melted set composite (500) output is cooled off by cooling device (600) under the traction of second draw-gear (700).
9. the device for the special-purpose film material of the mining air duct of making according to claim 8 is characterized in that the top of described curtain coating mould (400) also is provided with preheater (110), and described base cloth (001) passes through from top to bottom from the middle part of preheater (110).
10. according to claim 8 for the device of making the special-purpose film material of mining air duct, it is characterized in that, also comprise the 3rd draw-gear (900) and frame (120), described heat is melted set composite (500) and is positioned at frame (120), described first draw-gear (200) is positioned at the top of described frame (120), described base cloth is involved from base cloth unwinding device (100) by the 3rd draw-gear (900), draws to the top of frame (120) by first draw-gear (200) again and transfers to vertically downward and carrying.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310133661.7A CN103192584B (en) | 2013-04-17 | 2013-04-17 | The preparation method of mining ventilating tunnel dedicated film material and device thereof |
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| CN201310133661.7A CN103192584B (en) | 2013-04-17 | 2013-04-17 | The preparation method of mining ventilating tunnel dedicated film material and device thereof |
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| CN103192584B CN103192584B (en) | 2016-04-27 |
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| CN104196556A (en) * | 2014-08-20 | 2014-12-10 | 江苏苏龙环保科技有限公司 | Strip, manufacturing method thereof and hard negative pressure spiral air duct made of same |
| CN104669497A (en) * | 2013-11-29 | 2015-06-03 | 成都众成新型复合材料有限公司 | Cooling device for wind tube cloth |
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| CN109968574A (en) * | 2019-05-16 | 2019-07-05 | 江苏科润膜材料有限公司 | Produce the steel band casting device and its film-forming method of enhanced perfluorinated ion-exchange membrane |
| CN110053281A (en) * | 2019-05-22 | 2019-07-26 | 大连塑研塑料科技开发有限公司 | The method that coating, co-extrusion one-pass molding produce PVC shelter cloth |
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| CN105172311A (en) * | 2015-09-24 | 2015-12-23 | 江阴东恒新材料科技有限公司 | Adhesive-free coated banner manufacturing technique and device |
| CN107804001A (en) * | 2017-11-21 | 2018-03-16 | 汕头市三马塑胶制品有限公司 | The production method of foam sheet surface film |
| CN109968574A (en) * | 2019-05-16 | 2019-07-05 | 江苏科润膜材料有限公司 | Produce the steel band casting device and its film-forming method of enhanced perfluorinated ion-exchange membrane |
| CN109968574B (en) * | 2019-05-16 | 2024-02-06 | 江苏科润膜材料有限公司 | Steel belt casting device for producing enhanced perfluorinated ion exchange membrane and membrane manufacturing method thereof |
| CN110053281A (en) * | 2019-05-22 | 2019-07-26 | 大连塑研塑料科技开发有限公司 | The method that coating, co-extrusion one-pass molding produce PVC shelter cloth |
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