CN103196007B - The vacuum insulation panel and method of manufacturing a core material - Google Patents

The vacuum insulation panel and method of manufacturing a core material Download PDF

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CN103196007B
CN103196007B CN 201310117638 CN201310117638A CN103196007B CN 103196007 B CN103196007 B CN 103196007B CN 201310117638 CN201310117638 CN 201310117638 CN 201310117638 A CN201310117638 A CN 201310117638A CN 103196007 B CN103196007 B CN 103196007B
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CN 201310117638
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CN103196007A (en )
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糜玥崎
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常州山由帝奥绝缘材料制造有限公司
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Abstract

本发明涉及一种导热系数较小、成本较低的真空绝热板芯材及其制作方法。 The present invention relates to one kind of small thermal conductivity, low-cost vacuum insulation panel and method of manufacturing a core material. 所述真空绝热板芯材包括混合成型的:70-100wt%的、直径为6-13um,长度为4-20mm拉丝法生产的玻璃纤维短切丝和0-30wt%的、直径为1.0-4um,长度为1-5mm火焰法生产的玻璃纤维棉。 The vacuum insulation panel comprising mixing a core material formed: 70-100wt% of diameter 6-13um, a length of 4-20mm drawing method for the production of chopped glass fibers and 0-30wt% of a diameter of 1.0-4um a length of 1-5mm flame method produced fiberglass. 芯板制作方法采用多层加液,多层抽真空脱水,使芯板形成薄而纤维排列整齐的内部组成结构,这种结构有利于芯材导热系数降低。 Multilayer core plate fabrication method dosing, the multilayer vacuum dewatering, the composition forming the internal structure of the core plate so that a thin fiber-arranged, this arrangement helps reduce the thermal conductivity of the core material. 本发明的真空绝热板芯材导热系数在0.03W/mk以下,其真空绝热板导热系数为0.0025W/mk以下,相对于100%火焰法生产的玻璃纤维棉芯材要低,保温效果好,同时大大节省了真空绝热板芯材的制造成本,质量稳定可控。 Vacuum insulation panel according to the present invention, the thermal conductivity of the core material at 0.03W / mk or less, thermal conductivity of the vacuum insulation panel which is 0.0025W / mk or less, with respect to 100% of the production method of the flame fiberglass core is lower, the insulation effect, while saving the manufacturing cost of the vacuum insulation panel core, stable and controllable quality.

Description

真空绝热板芯材及其制作方法 The vacuum insulation panel and method of manufacturing a core material

技术领域 FIELD

[0001] 本发明涉及一种真空绝热板芯材及其制作方法,具体涉及一种以超细玻璃纤维棉和玻璃纤维短切丝为原料制作的真空绝热板芯材,其适用于家电保温、冷链物流、建筑保温等领域。 [0001] The present invention relates to a vacuum insulation panel and method for manufacturing a core material, particularly relates to a vacuum insulation panel core a kind of ultra-fine glass fibers and glass fiber chopped cotton as raw material, which is suitable for home appliances insulation, cold chain logistics, building insulation and other fields.

背景技术 Background technique

[0002]目前的真空绝热板芯材一般选择多孔介质,如粉状二氧化硅、气凝胶、玻璃纤维或微孔聚氨酯等材料,每一种材料都有其优缺点。 [0002] vacuum insulation panel core material is generally selected porous media, such as powdered silica, aerogels, polyurethane, glass fiber, or a microporous material, each material has its own advantages and disadvantages. 其次,每种芯板在使用时,必须加入干燥剂或吸气剂,除去阻隔膜以及芯材中未除尽的气体及水分,保证真空度,从而提高真空绝热板的使用寿命。 Next, each of the core plate when used, must be added a desiccant or a getter, and a gas barrier film is removed and water is not divisible by the core material, to ensure the degree of vacuum, thereby increasing the service life of the vacuum insulation panel. 真空绝热板已运用于各个领域中,它以节能、低碳、环保、安全的特性满足了客户要求。 Vacuum insulation panels have been used in various fields, it is energy saving, low-carbon, environmental protection and safety features to meet customer requirements. 通过调研和实际操作可知,真空绝热板内部芯材的选用和制作方法对其各项性能影响非常大,芯材一般选用多孔介质材料,如气凝胶、发泡聚氨酯、二氧化硅粉末、石棉纤维、玻璃纤维等。 Through research and practical understood, selection and production method of core material inside the vacuum insulation panel to its great influence the performance, the core material generally used in porous media, such as aerogels, foamed polyurethane, silica powder, asbestos fibers, glass fibers and the like. 对于真空绝热板芯材而言,必须具备以下四种特性:1、在高真空负压状态下对真空绝热板内部具有支撑作用,防止真空绝热板收缩、内陷;2、要尽可能地减少热传导的发生。 For vacuum insulation panel core, we must have the following four characteristics: 1, has a supporting effect on the inside of the vacuum insulation panel in a vacuum state under a high vacuum, the vacuum insulation panel to prevent shrinkage, retraction; 2, to reduce as much as possible heat conduction occurs. 3、必须具备开孔结构,使气体在负压状态下能够以最快速度被排出;4、材料需具备在真空或超低真空度状态下,不释放气体或尽可能少释放气体。 3, must have an open cell structure, the gas can be discharged at the fastest speed under negative pressure; 4, need to have the material in a vacuum state or ultra-vacuum degree, do not release a gas or gases released little as possible.

[0003]目前因不同种类的真空绝热板应用领域不同,其芯材的选择也有所差异。 [0003] The present due to vacuum insulation panels of different kinds of different applications, selecting a core material is also different. 对于家电保温、建筑保温等要求阻热性能好,导热系数低。 For home appliances, building insulation requirements good thermal barrier properties, low thermal conductivity. 目前大多数保温材料导热系数高,体积庞大,厚度一般在lcm-5cm之间,用于家电保温、冷链物流、建筑保温后,降低了家电、建筑的可利用空间并且保温寿命短。 Most current high thermal conductivity insulation materials, bulky, typically a thickness of between lcm-5cm, insulation for appliances, cold chain logistics, after building insulation, reducing the home appliances, construction and insulation of the space available for a short lifetime. 真空绝热板正是顺应了各领域保温需求,希望保温板厚度变薄、导热系数减小的要求。 The vacuum insulation panel is in line with the needs of the art insulation, desired insulation thickness is thinned, reduced thermal conductivity requirements.

发明内容 SUMMARY

[0004] 本发明所要解决的技术问题是提供一种导热系数较小、成本较低的真空绝热板芯材及其制作方法。 [0004] The present invention solves the technical problem is to provide a small coefficient of thermal conductivity, low-cost vacuum insulation panel and method of manufacturing a core material.

[0005] 为解决上述技术问题,本发明提供了一种真空绝热板芯材,其包括混合成型的:70-100wt%的、直径为6-13um,长度为4_20mm拉丝法生产的玻璃纤维短切丝和0_30wt%的、直径为1.0_4um,长度为1-5_火焰法生产的玻璃纤维棉。 [0005] In order to solve the above technical problem, the present invention provides a vacuum insulation panel core, which comprises a molded mixture of: 70-100wt% of diameter 6-13um, a length of the chopped glass fiber production method drawing 4_20mm 0_30wt% of the wire and a diameter of 1.0_4um, a length of production 1-5_ flame fiberglass.

[0006] 该真空绝热板芯材由多层玻璃纤维片材叠层设置至所需厚度后裁剪成型;所述玻璃纤维片材是由混合均匀的所述玻璃纤维短切丝和玻璃纤维棉分层同平面分布、大部分平行构成的片层,该片层的厚度均匀。 [0006] The vacuum insulation panel core member is provided by a multilayer glass fiber sheet laminated to a desired thickness after forming cut; said glass fiber sheet is the portion of the mixed glass fiber and chopped fiberglass distribution layer with the same plane, parallel sheets made of most uniform sheet thickness layer. 相对于直接形成所需厚度的玻璃纤维芯材,本发明的采用多层玻璃纤维片材叠置至所需厚度的玻璃纤维芯材,具有的技术效果:利于真空绝热板抽真空,以降低真空绝热板的导热系数。 With respect to a glass fiber core formed directly of the desired thickness, the present invention employs a multilayer glass fiber sheet laminated to the glass fiber core material of a desired thickness, having technical effects: conducive evacuated vacuum insulation panel, the vacuum is reduced to thermal conductivity of the heat insulating plate.

[0007] 由于拉丝法生产的玻璃纤维短切丝,已经工业化生产,产业成熟,效率较高,原材料成本相对较低,且可以使制成的真空绝热板的导热系数〈0.0025ff/m.ko因此,本发明的真空绝热板芯材成本低,质量稳定可控。 [0007] As the production method of drawing glass fiber chopped, has industrial production, mature industry, high efficiency, relatively low cost of raw materials, and may make the thermal conductivity of the vacuum insulation panel made of <0.0025ff / m.ko Thus, the low cost of the vacuum insulation panel core according to the present invention, stable and controllable quality.

[0008] 采用火焰法制造的玻璃纤维棉,直径细,长度短,因此相应得到的玻璃纤维棉密度较大,制成的真空绝热板芯材导热系数较低,但是若单独采用火焰法生产的玻璃纤维棉生产真空绝热板芯材,会制造成本高,且使制成的真空绝热板的导热系数难以达到0.0025W/mk以下,质量不稳定,可控性差;而本发明的真空绝热板芯材中用火焰法生产的玻璃纤维棉所占比例较少,相对于现有技术而言,大大减少了生产成本,提高了产品质量稳定性。 [0008] The fiberglass manufacturing a flame method, a small diameter, short length, thus obtained fiberglass corresponding density, low vacuum insulation panel core made of thermal conductivity, but if the production of a flame alone fiberglass production vacuum insulation panel core, will be expensive to manufacture, and that the thermal conductivity of the vacuum insulation panel is made difficult to achieve 0.0025W / mk or less, the quality of instability, poor controllability; the vacuum insulation panel core according to the present invention small proportion of fiberglass material produced by flame method, with respect to the prior art, greatly reducing the production costs, improved product quality stability.

[0009] 上述真空绝热板芯材的制作方法,包括如下步骤: [0009] The manufacturing method of the vacuum insulation panel core, comprising the steps of:

[0010] (I)取70-100wt%的、直径为6-13um、长度为4_20mm拉丝法生产的玻璃纤维短切丝和0-30wt%的、直径为1.0-4um、长度为l_5mm火焰法生产的玻璃纤维棉; [0010] (I) takes 70-100wt% of diameter 6-13um, drawing a length of the production method 4_20mm chopped glass fibers and 0-30wt% of a diameter of 1.0-4um, production of flame length l_5mm the fiberglass;

[0011] (2)将上述两种玻璃纤维材料分别分散,然后将上述玻璃纤维短切丝和玻璃纤维棉混合加水搅拌,搅拌均匀后送入配浆池加水稀释,稀释浓度至0.3-1.0wt%。 [0011] (2) The above two materials were dispersed glass fibers, the glass fibers are then chopped fiberglass mixture and mixing with water, stir into the mud pits diluted with water, was diluted to a concentration of 0.3-1.0wt %. 在搅拌过程中,还添加上述两种玻璃纤维材料总重量的0.005-0.015%的羟基纤维素,以减少静电效应,并进一步利于上述两种玻璃纤维分散均匀; During the stirring, add 0.005 to 0.015% of the total weight of the two hydroxyl groups of cellulose fiber material of glass, in order to reduce electrostatic effects, and to further facilitate uniform dispersion of the two glass fibers;

[0012] (3)将稀释好的浆料送入网前箱,网前箱流出的浆液分层流到成型网上,该成型网下均匀分布有负压吸口,以进行脱水;脱水后的纤维沉积在所述成型网上且厚度均匀、分层同平面分布,且大部分平行,形成所需厚度的片层,即获得玻璃纤维短切丝湿板。 [0012] (3) The diluted slurry at the head box network, layered headbox slurry flow exiting the forming wire, the forming wire at a uniform distribution of suction port, and dewatered; dewatered fibers deposited on the forming wire and a uniform thickness, with stratification plane, and most parallel, forming a desired sheet thickness, i.e., to obtain glass fiber chopped wet plate.

[0013] (4)采用压辊对上述玻璃纤维湿板进行碾压,使其表面平整、厚度均匀(通过控制压辊的压力调整玻璃纤维湿板的厚度,并使玻璃纤维湿板厚度一致); [0013] (4) The above-mentioned pressure roller for rolling glass fiber wet sheet, its surface smooth, uniform thickness (by controlling the pressure of the pressing roller adjusting the thickness of the wet glass fiber plate, and glass plate a uniform thickness wet fiber) ;

[0014] (5)将完成上述步骤(4)的玻璃纤维湿板经脱水、干燥处理后形成玻璃纤维片材; [0014] (5) The completion of the above step (4) is dehydrated wet plate glass fiber, a glass fiber sheet is formed after the drying process;

[0015] (6)按照生产要求将多层玻璃纤维片材叠置至所需厚度后进行裁剪,制作成所需芯材。 [0015] (6) according to the production requirements of the multilayer glass fiber sheet laminated to be cut after the desired thickness, made into the desired core material. (相对于直接形成所需厚度的玻璃纤维芯材,本发明的采用多层玻璃纤维片材叠置至所需厚度的玻璃纤维芯材,具有的技术效果:利于VIP抽真空,以降低VIP的导热系数)。 (With respect to the glass fiber core is formed directly in the desired thickness, multilayer glass fiber sheets are stacked to a desired thickness glass fiber core of the present invention, having the technical effect of: VIP beneficial evacuated to reduce the VIP Thermal Conductivity).

[0016] 在1KPa的压力条件下,所述步骤(5)生成的玻璃纤维片材的厚度为0.5_5mm。 [0016] 1KPa under pressure, the thickness of the glass fiber sheet in the step (5) generated for 0.5_5mm. 由于制作芯板采用的玻璃纤维短切丝直径为6-13um,长度为4-20mm拉丝法生产的玻璃纤维短切丝,所以在1KPa的压力条件下,所述玻璃纤维片材毛还最佳厚度为0.5-5mm。 Since the diameter of the chopped glass fiber was produced using the core plate 6-13um, a length of 4-20mm drawing method for the production of chopped glass fibers, so 1KPa under pressure, said glass fiber sheet further preferred hair a thickness of 0.5-5mm.

[0017] 所述步骤(4)中成型网对玻璃纤维棉脱水时,成型网的速度为12-30米/分钟。 [0017] The step (4) is molded fiberglass mesh when dehydrated, forming wire speed of 12-30 m / min. 采用这个速度能够有效的保证通过成型网制作出的玻璃纤维短切丝和棉组合的湿板密度均匀,排列整齐,整体厚度相对均匀,提高了真空绝热板芯材成品质量。 With this speed it can effectively guarantee a uniform web fabricated by molding chopped glass fibers and a combination of wet cotton board density, neat, relatively uniform overall thickness, the vacuum insulation panel to improve the quality of the finished core.

[0018] 所述成型网的顶面倾斜设置;成型网上方设有与所述网前箱相连的导流渠,该导流渠的底板与所述成型网的顶面平行,导流渠的底板上均匀分布有与所述成型网的长度方向垂直的狭缝式喷嘴;所述负压吸口分别与所述狭缝式喷嘴相对设置且分布于各狭缝式喷嘴的下游一侧,以利于浆液中的纤维均匀分布在所述成型网的顶面。 [0018] The top surface of the inclined forming wire; forming wire side is provided with the diversion channel headbox connected to the web, the diversion channel of the top surface of the base plate and parallel to the forming wire, the diversion channel uniformly distributed on the base plate with a slit nozzle perpendicular to the longitudinal direction of the forming wire; said negative pressure suction ports are respectively disposed opposite to the slit nozzle and is distributed to the downstream side of each slit nozzle, to facilitate fibers are uniformly distributed in the slurry at the top surface of the forming wire.

[0019] 作为一种优选的方案,所述成型网为传送带式,以利于连续生产。 [0019] As a preferred embodiment, the conveyor belt forming wire type, in order to facilitate continuous production.

[0020] 作为进一步优选的方案,所述成型网顶面的传送方向为自下而上,利于纤维沉积在所述成型网上且厚度均匀、分层同平面分布、大部分平行。 [0020] As a further preferred embodiment, the conveying direction forming a top surface of the bottom-up web, fibers are deposited facilitate the molded web and uniform in thickness, distributed hierarchical same plane, parallel to the majority.

[0021] 本发明的技术效果: [0021] Technical effects of the invention:

[0022] 1、本发明中采用70_100wt%拉丝法生产的玻璃纤维短切丝和0_30wt%火焰法生产的玻璃纤维棉作为真空绝热板芯材原料,生产出的真空绝热板芯材导热系数在0.030W/mk以下,其绝热板导热系数相对于采用100wt%火焰法生产的玻璃纤维棉芯材要低,保温效果较好;同时拉丝法生产的玻璃纤维短切丝所采用的原料成本较低,大大节省了真空绝热板芯材的制造成本;单片芯材厚度控制在0.5-5mm (1kpa压力下),密度控制在80kg/m3 -200kg/m3,压缩比比采用100wt%火焰法生产的超细玻纤棉芯材稍大,但不会对生产工艺有大的影响; [0022] 1, the present invention is employed in the production of glass wool fiber production method drawing 70_100wt% of chopped glass fibers and as flame method 0_30wt% vacuum insulation panel core material to produce a core material of vacuum insulation panels the thermal conductivity at 0.030 W / mk or less, its thermal conductivity with respect to the heat insulating plate made of glass fiber wicks material produced flame 100wt% lower, better insulation; while the lower raw material costs of production method of drawing glass chopped employed, significant savings in the manufacturing cost of the vacuum insulation panel core member; monolithic control the thickness of the core material (1kpa under pressure) 0.5-5mm, control the density 80kg / m3 -200kg / m3, the compression ratio than use of the flame produced 100wt% superfine glass fiber cotton core is slightly larger, but will not have a major impact on the production process;

[0023] 2、本发明所述真空绝热板芯材,具有多孔结构,能够满足真空绝热板芯材具备的快速排气性能; [0023] 2, the inventors of the present vacuum insulation panel core, has a porous structure, able to meet the core member includes a vacuum insulation panel rapidly exhaust performance;

[0024] 3、本发明中拉丝法生产的玻璃纤维短切丝具有阻燃、吸音、无毒、环保的特性使生产出的真空绝热板使用范围广泛; [0024] 3, the present invention is produced in the drawing process chopped glass fibers having a flame-retardant, sound-absorbing, non-toxic, environmentally friendly properties of the vacuum insulation panel is produced using a wide range;

[0025] 4、本发明整体制作工艺简单,适应工业化生产; [0025] 4, the overall production process of the invention is simple to adapt to industrial production;

[0026] 5、本发明采用多层加液,多层抽真空,是芯板形成薄而且纤维排列整齐的内部结构,这种结构有利于芯材导热系数的降低。 [0026] 5, the present invention employs a multi-layer Dosing, multilayer evacuated core plate is thin and the fibers forming the internal structure neatly arranged, this arrangement helps reduce the thermal conductivity of the core material.

附图说明 BRIEF DESCRIPTION

[0027] 图1为真空绝热板芯材的生产装置的结构示意图。 [0027] FIG. 1 is a schematic view of the production apparatus of the vacuum insulation panel core material.

具体实施方式 detailed description

[0028] 下面结合具体实例,对本发明作进一步详细说明。 [0028] Next, with reference to specific examples, the present invention is described in further detail.

[0029]实例 I [0029] Example I

[0030] 本实例的真空绝热板芯材,该真空绝热板芯材由直径为6-13um,长度为4_20mm拉丝法生产的玻璃纤维短切丝和直径为1.0-4.0um,长度为l-5mm火焰法生产的玻璃纤维棉混合制成;所述火焰法生产的玻璃纤维棉占20wt%,所述拉丝法生产的玻璃纤维短切丝占80wt%,且真空绝热板成品中的芯材厚度为15± 1mm,制成的真空绝热板的导热系数彡0.0024ff/m.ko [0030] The vacuum insulation panel core according to the present example, the vacuum insulation panel core a diameter of 6-13um, drawing a length of the production method 4_20mm and chopped glass fibers having a diameter of 1.0-4.0um, a length of l-5mm production of flame fiberglass blend; fiberglass production method of the flame accounted for 20wt%, the production method of drawing glass fiber chopped accounted 80wt%, and the core member thickness of the vacuum insulation panel is finished 15 ± 1mm, the thermal conductivity of the vacuum insulation panel made of San 0.0024ff / m.ko

[0031] 上述真空绝热板芯材的制作方法,该制作方法的具体步骤如下: [0031] The manufacturing method of the vacuum insulation panel core, the specific steps of the production method are as follows:

[0032] (I)取直径为6-13um,长度为4_20mm拉丝法生产的玻璃纤维短切丝和直径为1.0-4um,长度为l_5mm火焰法生产的玻璃纤维棉;所述火焰法生产的玻璃纤维棉比例为20wt%,所述拉丝法生产的玻璃纤维短切丝比例为80wt% ; [0032] (I) taken diameter 6-13um, drawing a length of 4_20mm production of chopped glass fibers and a diameter 1.0-4um, a length of production l_5mm Flame fiberglass; glass produced by the flame method cotton fiber proportion 20wt%, the proportion of short cut glass fibers produced by the method of drawing is 80wt%;

[0033] (2)将两种分散后的玻纤材料按一定比例混合加水搅拌均匀后送入配浆池稀释,稀释浓度至0.3-0.5wt%,并添加上述两种玻璃纤维总重量的0.005-0.015%的羟基纤维素,以减少静电效应; After feeding [0033] (2) The two glass material after dispersion by mixing with water Stir diluted mud pits, diluted to a concentration of 0.3-0.5wt%, and adding both the total weight of the glass fibers 0.005 -0.015% of the hydroxyl groups of cellulose, to reduce the electrostatic effect;

[0034] (3)将稀释好的玻璃纤维浆液送入蓄浆池; [0034] (3) The diluted slurry was fed to the glass fiber slurry reservoir tank;

[0035] (4)将蓄浆池中的浆料送入网前箱2,网前箱2流出的浆液3通过多层喷嘴4分层流到成型网I上,成型网I下方装有与喷嘴4相对应的风机吸口(即负压吸口5)并进行分层真空脱水。 [0035] (4) the slurry storage tank before slurry feed tank slurry network 2, 2 flowing out of the network through a multilayer head box nozzle 3 flows hierarchically forming wire 4 I, I and with the lower forming wire 4 corresponding to the fan nozzle mouthpiece (i.e., negative pressure mouthpiece 5) and layered vacuum dewatering. 脱水后的纤维沉积在成型网I上形成均匀、排列有序的片层,即制成玻璃纤维短切丝湿板;本步骤中成型网I对玻璃纤维浆液脱水时,成型网I的速度为20-25米/分钟; The dehydrated fibers are deposited on the forming wire to form a uniform I, orderly arranged layer of the sheet, i.e., the wet chopped fiberglass sheet; I In this step of forming the glass fiber web dewatering a slurry, the speed of the forming wire as I 20-25 m / min;

[0036] (5)对玻璃纤维湿板进行横向碾压,使表面平整,同时对玻璃纤维湿板的厚度进行调整,使玻璃纤维湿板厚度调整为1_-3_ ; [0036] (5) on the wet glass fiber board transverse rolling, smooth surface, while the thickness of the glass fibers is adjusted wet plate, the plate thickness of the glass fibers is adjusted to a wet-3_ 1_;

[0037] (6)将完成整形的玻璃纤维湿板传运到真空负压的传送带中将玻璃纤维湿板中60%的水分去除,使玻璃纤维湿板含水量控制在40%以下; [0037] (6) The completed wet plate shaped glass fibers pass transported to the vacuum suction of the glass fibers in the wet plate conveyor 60% of moisture removal, moisture content of the glass fibers wet plate controlled at 40% or less;

[0038] (7)然后将去除水分的玻璃纤维湿板送入烘烤箱8内烘干固化,烘烤箱8内温度控制在250-300摄氏度,烘烤时间为5-20分钟;烘烤完成后形成玻璃纤维芯片材; [0038] (7) then removing water wet glass fiber plate into the drying curing ovens 8, 8 within a temperature controlled ovens at 250-300 ° C, baking time is 5-20 minutes; baking after completion of the formation of the glass fiber core sheets;

[0039] (8)按照生产要求将多层玻璃纤维片材叠层设置至所需厚度后整板进行裁剪,裁切成600mmX600mm,即获得真空绝热板芯材成品。 [0039] (8) according to the production requirements multilayer glass fiber sheet laminated plate provided to the entire desired thickness of the cut, cut into 600mmX600mm, i.e., to obtain the finished vacuum insulation panel core.

[0040] 图1,所述成型网I的顶面倾斜设置;成型网I上方设有与所述网前箱2相连的导流渠7,该导流渠7的底板与所述成型网I的顶面平行,导流渠7的底板上均匀分布有多个与所述成型网I的长度方向垂直的狭缝式喷嘴4 ;各负压吸口5分别与所述狭缝式喷嘴4相对设置且分布于各狭缝式喷嘴4的下游一侧,以利于浆液中的纤维均匀分布在所述成型网的顶面。 [0040] FIG. 1, the top surface of the forming wire of the inclined I; I provided above the forming wire headbox 2 is connected to the diversion channel 7, the bottom plate 7 of the diversion channel of the forming wire I parallel to the top surface, a plurality of evenly distributed perpendicular to the longitudinal direction of the forming wire I slit nozzle 4 on the bottom plate 7 of the diversion channel; each of suction ports 5, respectively of the slit nozzle 4 disposed opposite and distributed to the downstream side of each slit nozzle 4, the fibers are uniformly distributed in the slurry to facilitate the top surface of the forming wire. 狭缝式喷嘴4的宽度为l-8mm。 The width of the slit nozzle 4 is l-8mm.

[0041] 所述成型网I为传送带式,以利于连续生产;成型网I顶面的传送方向为自下而上,利于纤维沉积在所述成型网上且厚度均匀、分层同平面分布、大部分平行。 [0041] I is the forming wire belt type, in order to facilitate continuous production; I top surface of the transferring direction of the bottom-up network, conducive fibers deposited on the forming wire and uniform thickness, with a plane stratified distribution, large parallel portion.

[0042] 实施例2 [0042] Example 2

[0043] 本实例的真空绝热板芯材,由直径为6-13um,长度为4_20mm拉丝法生产的玻璃纤维短切丝和直径为1.0-4um,长度为1-5_火焰法生产的玻璃纤维棉混合制成;所述火焰法生产的玻璃纤维棉占10wt%,所述拉丝法生产的玻璃纤维短切丝占90wt%,且真空绝热板成品中的芯材厚度为15± 1mm,制成的真空绝热板的导热系数< 0.0022ff/mk。 [0043] The vacuum insulation panel core according to the present example, a diameter of 6-13um, drawing a length of 4_20mm production of chopped glass fibers and a diameter 1.0-4um, the flame length 1-5_ production of glass fibers cotton blend; production method of the flame fiberglass accounted for 10wt%, the production method of drawing glass fiber chopped accounted 90wt%, and the core member thickness of the vacuum insulation panel in the finished product was 15 ± 1mm, be made the thermal conductivity of the vacuum insulation panel <0.0022ff / mk.

[0044] 本实例的真空绝热板芯材的制作方法,包括的步骤如下: [0044] The method of manufacturing a core material of vacuum insulation panel according to the present example, comprises the following steps:

[0045] (I)取直径为6-13um,长度为4_20mm拉丝法生产的玻璃纤维短切丝和直径为1.0-4um,长度为l_5mm火焰法生产的玻璃纤维棉;所述火焰法生产的玻璃纤维棉比例为10wt%,所述拉丝法生产的玻璃纤维短切丝比例为90wt% ; [0045] (I) taken diameter 6-13um, drawing a length of 4_20mm production of chopped glass fibers and a diameter 1.0-4um, a length of production l_5mm Flame fiberglass; glass produced by the flame method cotton fiber proportion 10wt%, the proportion of short cut glass fibers produced by the method of drawing is 90wt%;

[0046] (2)将两种分散后的玻纤材料按一定比例混合加水搅拌均匀后送入配浆池稀释,稀释浓度至0.3-0.5wt%并适当加入羟基纤维素以减少静电效应; After the glass material [0046] (2) The two dispersion by mixing with water with stirring into a uniform slurry tank after dilution, diluted to a concentration of 0.3-0.5wt% and suitably hydroxy cellulose is added to reduce the electrostatic effect;

[0047] (3)将稀释好的玻璃纤维浆液送入蓄浆池; [0047] (3) The diluted slurry was fed to the glass fiber slurry reservoir tank;

[0048] (4)将蓄浆池中的浆料送入网前箱,网前箱流出的浆液通过多层喷嘴分层流到成型网上,成型网下方装有与喷嘴相对应的风机吸口并进行分层真空脱水。 [0048] (4) the slurry storage tank before slurry feed network box, a slurry headbox stratification effluent flows through a multilayer nozzle forming wire, with the lower forming wire corresponding to the nozzles and the suction port of the fan stratified vacuum dehydration. 脱水后的纤维沉积在成型网上形成均匀有序的片层,便制成玻璃纤维短切丝湿板;本步骤中成型网对玻璃纤维棉脱水时,成型网的速度为20-25米/分钟; The dehydrated fibers are deposited to form a uniform sheet molding ordered online, then chopped fiberglass wet plate; In this step of the forming wire dewatering fiberglass, forming wire speed was 20-25 m / min ;

[0049] (5)对玻璃纤维湿板进行横向碾压,使表面平整,同时对玻璃纤维湿板的厚度进行调整,使玻璃纤维湿板厚度调整为1_-3_ ; [0049] (5) on the wet glass fiber board transverse rolling, smooth surface, while the thickness of the glass fibers is adjusted wet plate, the plate thickness of the glass fibers is adjusted to a wet-3_ 1_;

[0050] (6)将完成整形的玻璃纤维湿板传送到真空负压的传送带中,将玻璃纤维湿板中60%的水分去除,使玻璃纤维湿板含水量控制在40%以下; Conveyor [0050] (6) A complete fiber wet shaping glass plate is transferred to the negative pressure in the vacuum, the glass fibers of the wet sheet 60% moisture removal, the glass fiber sheet water content of the wet 40% or less;

[0051] (7)然后将去除水分的玻璃纤维湿板送入烘烤箱8内烘干固化,烘烤箱内温度控制在250-300摄氏度,烘烤时间为5-20分钟左右;烘烤完成后形成玻璃纤维片材; [0051] (7) then removing water glass fiber wet plate 8 into the drying curing ovens, baking temperature control box 250-300 ° C, the baking time is about 5-20 minutes; baking after the completion of forming the glass fiber sheet;

[0052] (8)按照生产要求将多层玻璃纤维片材叠层设置至所需厚度后进行裁剪,即获得真空绝热板芯材成品。 [0052] (8) according to the production requirements of the multilayer glass fiber sheet stack after setting the desired thickness to be cut, i.e., to obtain the finished vacuum insulation panel core.

[0053] 实施例3 [0053] Example 3

[0054] 本实施例的真空绝热板芯材,由直径为6-13um,长度为4_20mm拉丝法生产的玻璃纤维短切丝和直径为1.0-4um,长度为1-5_火焰法生产的玻璃纤维棉混合制成;所述火焰法生产的玻璃纤维棉占15wt%,所述拉丝法生产的玻璃纤维短切丝占85wt%,且真空绝热板成品的导热系数彡0.002lff/m.ko [0054] The vacuum insulation panel core according to the present embodiment, a diameter of 6-13um, drawing a length of the production method 4_20mm and chopped glass fibers having a diameter of 1.0-4um, a length of flame production of glass 1-5_ fiber cotton blend; production method of the flame fiberglass accounted for 15wt%, the production method of drawing glass fiber chopped accounted 85wt%, and the thermal conductivity of the vacuum insulation panel San 0.002lff finished / m.ko

[0055] 本实施例的真空绝热板芯材的制作方法,包括的具体步骤如下: [0055] The present method of manufacturing a vacuum insulation panel embodiment of a core material, comprising specific steps are as follows:

[0056] (I)取直径为6-13um,长度为4_20mm拉丝法生产的玻璃纤维短切丝和直径为 [0056] (I) taken diameter 6-13um, drawing a length of the production method 4_20mm and chopped glass fibers having a diameter of

1.0-4um,长度为l_5mm火焰法生产的玻璃纤维棉;所述火焰法生产的玻璃纤维棉比例为15wt%,所述拉丝法生产的玻璃纤维短切丝比例为85wt% ; 1.0-4um, the flame length l_5mm Production of fiberglass; cotton production ratio of the glass fiber flame method is 15wt%, the proportion of short cut glass fibers produced by the method of drawing is 85wt%;

[0057] (2)将两种分散后的玻纤材料按一定比例混合加水搅拌均匀后送入配浆池稀释,稀释浓度至0.6wt%并加入羟基纤维素以减少静电效应; After the glass material [0057] (2) The two dispersion by mixing with water with stirring into a uniform slurry tank after dilution, diluted to a concentration of 0.6wt%, and a hydroxyl group of cellulose is added to reduce the electrostatic effect;

[0058] (3)将稀释好的玻璃纤维棉浆液送入蓄浆池; [0058] (3) The diluted slurry was fed reservoir fiberglass chest;

[0059] (4)将蓄浆池中的浆料送入网前箱,网前箱流出的浆液通过多层喷嘴分层流到成型网上,成型网下方装有与喷嘴相对应的风机吸口并进行分层真空脱水。 [0059] (4) the slurry storage tank before slurry feed network box, a slurry headbox stratification effluent flows through a multilayer nozzle forming wire, with the lower forming wire corresponding to the nozzles and the suction port of the fan stratified vacuum dehydration. 脱水后的纤维沉积在成型网上形成均匀有序的片层,便制成玻璃纤维短切丝湿板。 The dehydrated fibers are deposited to form a uniform sheet molding ordered online, then wet chopped fiberglass plate. 本步骤中成型网对玻璃纤维棉脱水时,成型网的速度为20-25米/分钟; In this step of the forming wire dewatering fiberglass, forming wire speed was 20-25 m / min;

[0060] (5)对玻璃纤维湿板进行横向碾压,使表面平整,同时对玻璃纤维湿板的厚度进行调整,使玻璃纤维湿板厚度调整为1_3_ ; [0060] (5) on the wet glass fiber board transverse rolling, smooth surface, while the thickness of the glass fibers wet plate is adjusted, the glass fiber wet sheet thickness was adjusted to 1_3_;

[0061] (6)将完成整形的玻璃纤维湿板传送到真空负压的传送带上将玻璃纤维湿板中60%的水分去除,使玻璃纤维湿板含水量控制在40% ; [0061] (6) The completed wet plate shaped glass fibers to the vacuum suction transfer conveyor plate on the wet glass fibers 60% of the water is removed, the glass fiber sheet water content of the wet 40%;

[0062] (7)然后将去除水分的玻璃纤维湿板送入烘烤箱内烘干固化,烘烤箱内温度控制在250-300摄氏度,烘烤时间为5-30分钟左右;烘烤完成后形成玻璃纤维片材; [0062] (7) then removing water wet glass fiber plate into the drying tank bake curing, the baking temperature control box 250-300 ° C, the baking time is about 5-30 minutes; complete baking after forming the glass fiber sheet;

[0063] (9)按照生产要求将多层玻璃纤维片材叠层设置至所需厚度后进行裁剪,即获得真空绝热板芯材成品。 [0063] (9) according to the production requirements of the multilayer glass fiber sheet stack after setting the desired thickness to be cut, i.e., to obtain the finished vacuum insulation panel core.

Claims (4)

  1. 1.一种真空绝热板芯材的制作方法,包括如下步骤: (1)取70-100wt%的、直径为6-13um、长度为4_20mm拉丝法生产的玻璃纤维短切丝和0-30wt%的、直径为1.0-4um、长度为l_5mm火焰法生产的玻璃纤维棉; (2)将上述两种玻璃纤维分别分散,然后将上述玻璃纤维短切丝和玻璃纤维棉混合加水搅拌,搅拌均匀后送入配浆池加水稀释,稀释浓度至0.3-1.0wt% ; (3)将稀释好的浆料送入网前箱,网前箱流出的浆料分层流到一成型网上,该成型网下均匀分布有负压吸口,以进行脱水;脱水后的纤维沉积在所述成型网上且厚度均匀、分层同平面分布、大部分平行,形成所需厚度的片层,即获得玻璃纤维短切丝湿板; (4)采用压辊对上述玻璃纤维湿板进行碾压,使其表面平整、厚度均匀; (5)将完成上述步骤(4)的玻璃纤维湿板经脱水、干燥处理后形成玻璃纤维片材; (6)将多层玻璃纤维片材 1. A method for manufacturing a core material of vacuum insulation panel, comprising the steps of: (1) taking 70-100wt% of diameter 6-13um, drawing a length of the production method 4_20mm chopped glass fibers and 0-30wt% (2) the above two glass fibers were dispersed, and then the glass fiber and chopped fiberglass mixture was stirred with water, uniformly stirred; the diameter 1.0-4um, the length of the production method of the flame fiberglass l_5mm into the mud pits diluted with water, was diluted to a concentration 0.3-1.0wt%; layered slurry (3) the diluted slurry feed network headbox, headbox flow exiting a forming wire, the forming wire uniform distribution of suction port, and dewatered; dewatered fibers are deposited on the forming wire and uniform thickness, with a plane stratified distribution, most of the parallel, forming a desired sheet thickness, i.e., to obtain glass chopped wet wire board; (4) using the above-described platen roller for rolling glass fiber wet sheet, its surface smooth, uniform thickness; (5) the completion of the above step (4) is dehydrated wet plate glass fibers, formed after the drying process glass fiber sheet; (6) the multilayer glass fiber sheet 叠层设置至所需厚度后进行裁剪,制成所需的芯材; 在所述步骤(2)的稀释过程中,添加上述两种玻璃纤维总重量的0.005-0.015%的羟基纤维素; 所述成型网的顶面倾斜设置;成型网上方设有与所述网前箱相连的导流渠,该导流渠的底板与所述成型网的顶面平行,导流渠的底板上均匀分布有与所述成型网的长度方向垂直的狭缝式喷嘴;所述负压吸口分别与所述狭缝式喷嘴相对设置且分布于各狭缝式喷嘴的下游一侧。 The stack is provided to the desired thickness after cutting, into the desired core material; in the step (2) during the dilution, was added 0.005 to 0.015% of the total weight of the hydroxyl groups of cellulose above two glass fibers; the said top surface is inclined forming wire; forming wire side of the web is provided with the diversion channel is connected to the front case, the diversion channel floor and top surface of the forming wire parallel, uniformly distributed on the base plate of the diversion channel a slit nozzle perpendicular to the longitudinal direction of the forming wire; said negative pressure suction ports are respectively disposed opposite to the slit nozzle and is distributed to the downstream side of each slit nozzle.
  2. 2.如权利要求1所述的真空绝热板芯材的制作方法,其特征在于:所述步骤(3)中成型网对玻璃纤维棉脱水时,成型网的速度为12-30米/分钟。 2. The manufacturing method of a core material of vacuum insulation panel as claimed in claim, wherein: said step (3) is formed of fiberglass mesh dewatering, the speed of the forming wire is 12 to 30 m / min.
  3. 3.如权利要求1所述的真空绝热板芯材的制作方法,其特征在于:所述成型网为传送带式。 The manufacturing method of a vacuum insulation panel core as claimed in claim 3, wherein: said belt is a forming wire type.
  4. 4.如权利要求3所述的真空绝热板芯材的制作方法,其特征在于:所述成型网顶面的传送方向为自下而上。 4. The manufacturing method of the vacuum insulation panel core member 3 of the preceding claims, characterized in that: the top surface of the molded web transport direction is from bottom to top.
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CN102788229B (en) * 2012-07-23 2015-05-13 青岛科瑞新型环保材料有限公司 Method for manufacturing a uniform-density vacuum insulated panel with high production efficiency
CN102979009A (en) * 2012-12-13 2013-03-20 苏州维艾普新材料有限公司 Chopped glass fiber core material harmless to human body and preparation method thereof

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