CN118061655A - A method for manufacturing a composite flat roof plate of a railway passenger car - Google Patents

A method for manufacturing a composite flat roof plate of a railway passenger car Download PDF

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Publication number
CN118061655A
CN118061655A CN202410373195.8A CN202410373195A CN118061655A CN 118061655 A CN118061655 A CN 118061655A CN 202410373195 A CN202410373195 A CN 202410373195A CN 118061655 A CN118061655 A CN 118061655A
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CN
China
Prior art keywords
core material
adhesive
manufacturing
fireproof board
resistant
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202410373195.8A
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Chinese (zh)
Inventor
李智源
李臣
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Changchun Dejia Wood Co ltd
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Changchun Dejia Wood Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Changchun Dejia Wood Co ltd filed Critical Changchun Dejia Wood Co ltd
Priority to CN202410373195.8A priority Critical patent/CN118061655A/en
Publication of CN118061655A publication Critical patent/CN118061655A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/04—Punching, slitting or perforating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B32B2037/1253—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives curable adhesive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B2038/0052—Other operations not otherwise provided for
    • B32B2038/0076—Curing, vulcanising, cross-linking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/04—Punching, slitting or perforating
    • B32B2038/047—Perforating
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T30/00—Transportation of goods or passengers via railways, e.g. energy recovery or reducing air resistance

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  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Laminated Bodies (AREA)

Abstract

一种轨道客车复合平顶板的制造方法，属于复合板材造技术领域，其生产方法是将芯材、胶粘剂与防火板放置在同温区24小时以上，芯材用砂纸打磨后，再进行点阵形式打孔，将胶粘剂均匀涂在芯材表面，芯材的上下面均粘合上防火板，然后将粘接好的产品放置在压机内加压固化，制成平顶板。本发明产品外形美观，重量轻，强度高，平整度高，稳定性好，不易变形开裂，有较高的强度及抗冲击性，且防火阻燃，消音、隔音阻尼性能好，表面耐磨、耐水、耐酸碱油等侵蚀，符合环保标准。在使用过程中便于加工及安装，亦可弯曲成型，特别适合轨道车辆及船舶内装部件使用。A manufacturing method for a composite flat roof for a railway passenger car belongs to the technical field of composite board manufacturing. The production method is to place a core material, an adhesive and a fireproof board in a constant temperature zone for more than 24 hours, grind the core material with sandpaper, and then perform dot matrix punching, evenly apply the adhesive on the surface of the core material, and bond the fireproof board to the upper and lower surfaces of the core material, and then place the bonded product in a press for pressurization and curing to make a flat roof. The product of the present invention has beautiful appearance, light weight, high strength, high flatness, good stability, is not easy to deform and crack, has high strength and impact resistance, and is fireproof and flame retardant, has good silencing and sound insulation damping performance, and has a surface wear-resistant, water-resistant, acid-alkali-resistant, oil-resistant and other erosion-resistant performance, and meets environmental protection standards. It is easy to process and install during use, and can also be bent and formed, and is particularly suitable for use in rail vehicles and ship interior parts.

Description

Manufacturing method of composite flat roof of railway passenger car
Technical Field
The invention belongs to the technical field of composite board manufacturing, and relates to a manufacturing method of a composite flat top board.
Background
At present, the railway passenger car is increasingly valued in large and medium-sized cities, the requirements for decorative materials of the passenger car are also improved, and the strength of the composite flat roof of the existing railway passenger car is still required to be improved.
Disclosure of Invention
The invention aims to solve the technical problem of providing a method for manufacturing a composite flat roof of a railway passenger car, which can effectively improve the technical performance of the flat roof.
The technical scheme of the invention is that EPP (expanded polypropylene) material is used as a core material, and the core material and the fireproof plate are adhered together through an adhesive. The production method comprises the following steps:
1. Placing the core material, the adhesive and the fireproof plate in a same temperature area for more than 24 hours to make various materials at the same temperature, wherein the fireproof plate is an HPL veneer;
2. After the core material is vertically crossed and polished by 80-120# abrasive paper, the core material is perforated in a lattice mode, the distance between adjacent holes is 20-30mm, and the aperture is 3-6mm;
3. Cleaning the surfaces of a core material and a fireproof plate, uniformly coating an adhesive on the surface of the core material, bonding the fireproof plate on the upper surface and the lower surface of the core material at 350-500 g/m 2, placing the bonded product in a press for pressurizing and solidifying, and compacting under the pressure of 0.5kg/cm 2 to prepare a flat top plate.
The flat top plate of the invention has the performance meeting the national industry standard after detection
The list of detection results is as follows
Wherein the adhesive is prepared by mixing resin and curing agent according to a weight ratio of 2:1, and fully stirring until the mixture is uniform.
To achieve the ideal strength and impact resistance, the material is cured under pressure at normal temperature for 6 to 8 hours and then is aged for 5 to 7 days; if the mixture is cured under pressure at 60 ℃, curing for 50-60 minutes and standing for 24 hours;
The prepreg is adhered to the surface of the core material coated with the adhesive, the adhesive is coated on the outer surface of the prepreg, and then the fireproof plate is adhered. The prepreg may be a fiber resin board (including a phenolic resin board, a glass fiber resin board, an epoxy resin board, a carbon fiber resin board, a nonwoven fabric, etc.).
The product of the invention has beautiful appearance, light weight, high strength, high flatness, good stability, difficult deformation and cracking, higher strength and impact resistance, fireproof and flame retardant performance, good sound attenuation and sound insulation damping performance, wear resistance, water resistance, acid and alkali resistance and other corrosion resistance on the surface, and meets the environmental protection standard. The device is convenient to process and install in the use process, can be bent and formed, and is particularly suitable for rail vehicles and ship built-in parts.
Detailed Description
Example 1, core EPP (expanded polypropylene) material, adhesive and HPL veneer were placed in the same temperature zone for 24 hours, allowing the various materials to be at the same temperature; after the core material is vertically crossed and polished by 80# abrasive paper, the core material is perforated in a lattice mode, the distance between adjacent holes is 20mm, and the aperture is 6mm; cleaning the surfaces of the core material and the fireproof plate, uniformly coating an adhesive on the surfaces of the core material, adhering the fireproof plate on the upper surface and the lower surface of the core material by 500g/m 2, placing the adhered product in a press for pressurizing and solidifying, and compacting under the condition of the pressure of 0.5kg/cm 2 to prepare the flat top plate. Wherein the adhesive is prepared by mixing resin and curing agent according to a weight ratio of 2:1, and fully stirring until the mixture is uniform. Wherein the mixture is cured under pressure at normal temperature for 8 hours and aged for 5 days.
2, Placing the core material, the adhesive and the HPL veneer in a same temperature area for 30 hours to enable various materials to be at the same temperature, vertically and crosswise polishing the core material by using 120# abrasive paper, and then punching the core material in a lattice mode, wherein the distance between adjacent holes is 20mm, and the aperture is 3mm; cleaning the surfaces of a core material and a fireproof plate, uniformly coating an adhesive on the surface of the core material, bonding a prepreg on the surface of the core material coated with the adhesive, coating the adhesive on the outer surface of the prepreg, bonding the fireproof plate, and compacting the bonded product in a press under the condition of 0.5kg/cm 2 under the pressure of 350g/m 2. Wherein the adhesive is prepared by mixing resin and curing agent according to a weight ratio of 2:1, and fully stirring until the mixture is uniform. Wherein the mixture is cured under pressure at 60 ℃ for 60 minutes and aged for 24 hours.

Claims (5)

1.一种轨道客车复合平顶板的制造方法，其特征在于：采用EPP材料作为芯材，通过胶粘剂与防火板粘合在一起，生产方法如下：1. A method for manufacturing a composite flat roof for a railway passenger car, characterized in that: an EPP material is used as a core material and is bonded to a fireproof board by an adhesive. The production method is as follows: (1)将芯材、胶粘剂与防火板放置在同温区24小时以上，使得各种材料同温，所述的防火板是HPL贴面板；(1) placing the core material, adhesive and fireproof board in a temperature zone for more than 24 hours to keep the various materials at the same temperature, wherein the fireproof board is an HPL veneer; (2)芯材用80-120#砂纸垂直交叉打磨后，对芯材进行点阵形式打孔，相邻孔间距20-30mm，孔径3-6mm；(2) After the core material is vertically cross-grinded with 80-120# sandpaper, the core material is punched in a dot matrix, with a spacing of 20-30mm between adjacent holes and a hole diameter of 3-6mm; (3)清洁芯材和防火板表面，将胶粘剂均匀涂在芯材表面，350～500g/m2，芯材的上下面均粘合上防火板，然后将粘接好的产品放置在压机内加压固化，压力在0.5kg/cm2条件下压实，制成平顶板。(3) Clean the surface of the core material and the fireproof board, and evenly apply the adhesive on the surface of the core material, 350-500g/ m2 , and bond the fireproof board to the upper and lower surfaces of the core material. Then place the bonded product in a press and pressurize it for curing. The pressure is compacted under 0.5kg/ cm2 to make a flat top board. 2.根据权利要求1所述的制造方法，其特征在于：胶粘剂采用树脂和固化剂按照重量比2:1进行混合。2. The manufacturing method according to claim 1 is characterized in that the adhesive is a mixture of resin and curing agent in a weight ratio of 2:1. 3.根据权利要求1所述的制造方法，其特征在于：常温条件下加压固化，固化6-8小时，陈放5-7天。3. The manufacturing method according to claim 1 is characterized in that: the product is pressurized and cured at room temperature for 6-8 hours and then aged for 5-7 days. 4.根据权利要求1所述的制造方法，其特征在于：在60℃下加压固化，固化50-60分钟，陈放24小时。4. The manufacturing method according to claim 1 is characterized in that: the curing is performed under pressure at 60°C for 50-60 minutes and the curing is performed for 24 hours. 5.根据权利要求1所述的制造方法，其特征在于：芯材和防火板之间粘接有预浸料，是在涂有胶粘剂的芯材表面粘接预浸料，预浸料的外表面再涂有胶粘剂，然后粘接防火板，其中预浸料是纤维树脂板。5. The manufacturing method according to claim 1 is characterized in that: a prepreg is bonded between the core material and the fireproof board, the prepreg is bonded to the surface of the core material coated with an adhesive, the outer surface of the prepreg is coated with an adhesive, and then the fireproof board is bonded, wherein the prepreg is a fiber resin board.
CN202410373195.8A 2024-03-29 2024-03-29 A method for manufacturing a composite flat roof plate of a railway passenger car Pending CN118061655A (en)

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CN202410373195.8A CN118061655A (en) 2024-03-29 2024-03-29 A method for manufacturing a composite flat roof plate of a railway passenger car

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Application Number Priority Date Filing Date Title
CN202410373195.8A CN118061655A (en) 2024-03-29 2024-03-29 A method for manufacturing a composite flat roof plate of a railway passenger car

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101032876A (en) * 2007-04-10 2007-09-12 南京工业大学 Lattice reinforced composite material sandwich structure
CN101289017A (en) * 2007-04-18 2008-10-22 上海磁浮交通工程技术研究中心 Composite material structure for high-speed train and manufacturing method thereof
CN208034907U (en) * 2018-02-27 2018-11-02 广州市盈尔安防火材料有限公司 Light fire-proof waterproof pluwood
CN109177352A (en) * 2018-07-10 2019-01-11 嘉兴领科材料技术有限公司 A kind of high-strength thermoplasticity light composite board and preparation method thereof
CN208376176U (en) * 2018-03-23 2019-01-15 浙江遂金复合材料有限公司 Car top plate continuous fiber reinforced thermoplastic foamed board
CN217435219U (en) * 2022-01-17 2022-09-16 浙江华聚复合材料有限公司 Light composite board with HPL board surface layer
CN117382281A (en) * 2023-09-27 2024-01-12 江苏奇一科技有限公司 A continuous fiber reinforced lightweight composite decorative panel and its preparation method

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101032876A (en) * 2007-04-10 2007-09-12 南京工业大学 Lattice reinforced composite material sandwich structure
CN101289017A (en) * 2007-04-18 2008-10-22 上海磁浮交通工程技术研究中心 Composite material structure for high-speed train and manufacturing method thereof
CN208034907U (en) * 2018-02-27 2018-11-02 广州市盈尔安防火材料有限公司 Light fire-proof waterproof pluwood
CN208376176U (en) * 2018-03-23 2019-01-15 浙江遂金复合材料有限公司 Car top plate continuous fiber reinforced thermoplastic foamed board
CN109177352A (en) * 2018-07-10 2019-01-11 嘉兴领科材料技术有限公司 A kind of high-strength thermoplasticity light composite board and preparation method thereof
CN217435219U (en) * 2022-01-17 2022-09-16 浙江华聚复合材料有限公司 Light composite board with HPL board surface layer
CN117382281A (en) * 2023-09-27 2024-01-12 江苏奇一科技有限公司 A continuous fiber reinforced lightweight composite decorative panel and its preparation method

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