CN115384076A - Hand lay-up forming method for composite material automobile parts - Google Patents
Hand lay-up forming method for composite material automobile parts Download PDFInfo
- Publication number
- CN115384076A CN115384076A CN202210958124.5A CN202210958124A CN115384076A CN 115384076 A CN115384076 A CN 115384076A CN 202210958124 A CN202210958124 A CN 202210958124A CN 115384076 A CN115384076 A CN 115384076A
- Authority
- CN
- China
- Prior art keywords
- hand lay
- resin
- automobile parts
- molding
- reinforcing material
- 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
Links
- 238000000034 method Methods 0.000 title claims abstract description 33
- 239000002131 composite material Substances 0.000 title claims abstract description 31
- 238000009787 hand lay-up Methods 0.000 title claims abstract description 24
- 229920005989 resin Polymers 0.000 claims abstract description 30
- 239000011347 resin Substances 0.000 claims abstract description 30
- 239000012779 reinforcing material Substances 0.000 claims abstract description 29
- 238000000465 moulding Methods 0.000 claims abstract description 14
- 239000011248 coating agent Substances 0.000 claims abstract description 8
- 238000000576 coating method Methods 0.000 claims abstract description 8
- 238000005056 compaction Methods 0.000 claims abstract description 3
- 239000000835 fiber Substances 0.000 claims description 4
- 238000005096 rolling process Methods 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 229920000297 Rayon Polymers 0.000 claims 1
- 239000003292 glue Substances 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 12
- 230000007797 corrosion Effects 0.000 abstract description 7
- 238000005260 corrosion Methods 0.000 abstract description 7
- 238000009413 insulation Methods 0.000 abstract description 7
- 239000007769 metal material Substances 0.000 abstract description 6
- 239000004033 plastic Substances 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000003365 glass fiber Substances 0.000 description 4
- 229910000975 Carbon steel Inorganic materials 0.000 description 2
- 239000010962 carbon steel Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 102100040287 GTP cyclohydrolase 1 feedback regulatory protein Human genes 0.000 description 1
- 101710185324 GTP cyclohydrolase 1 feedback regulatory protein Proteins 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Composite Materials (AREA)
- Mechanical Engineering (AREA)
- Laminated Bodies (AREA)
Abstract
The invention relates to the technical field of automobile manufacturing, in particular to a hand lay-up forming method for a composite material automobile part. The hand lay-up forming method of the composite material automobile parts comprises the following steps of S1: coating a layer of resin on the molding surface of the automobile part mold; s2: laying a layer of reinforcing material on the resin; s3: compressing the reinforcing material and the resin; s4: coating a layer of resin on the surface after the compaction; s5: and repeating the steps S2-S4 until the required thickness of the automobile part is achieved. Compared with the parts prepared by the traditional metal material or plastic material, the composite material automobile part hand lay-up forming method has the advantages of light weight, high strength, good corrosion resistance, good insulativity and good heat insulation.
Description
Technical Field
The invention relates to the technical field of automobile part manufacturing, in particular to a hand lay-up forming method for a composite material automobile part.
Background
Composite FRP is also known as GRP or GFRP, the scientific name of fiberglass reinforced plastic. It is a composite material made up by using glass fibre and its product as reinforcing material and using synthetic resin as base material through a certain forming process. The concept of composite material means that one material can not meet the use requirement, and two or more materials are required to be compounded together to form another material which can meet the requirement of people, namely the composite material.
The composite material has good physical and chemical properties, the relative density is between 1.5 and 2.0, only 1/4 to 1/5 of carbon steel is used, but the tensile strength is close to or even exceeds that of carbon steel, and the specific strength can be compared with that of high-grade alloy steel. FRP is a good corrosion-resistant material, and has good resistance to atmosphere, water, acid, alkali, salt with common concentration and various oils and solvents. Composite materials are excellent insulating materials. Good dielectric properties can be protected at high frequency. The FRP has low thermal conductivity, 1.25-1.67 kJ/(mh.K) at room temperature, only contains 1/100-1/1000 of metal, and is an excellent heat insulating material. Various structural products can be flexibly designed according to the requirements to meet the use requirements, so that the products have good integrity; the forming process can be flexibly selected according to the shape, technical requirements, application and quantity of the product; the process is simple, can be formed at one time, has outstanding economic effect, and particularly has outstanding process superiority for products which have complex shapes and are difficult to form and have small quantity.
The existing automobile parts are mostly made of metal materials for ensuring the strength requirement, and have the defects of heavy weight, poor corrosion resistance, poor insulativity and poor heat insulation. If the automobile parts are manufactured by injection molding, the strength is not enough.
Disclosure of Invention
In view of the above, the present invention provides a method for hand lay-up molding of composite material automobile parts, which is characterized in that the automobile parts are prepared by the composite material hand lay-up molding process, and compared with the parts prepared by the traditional metal material or plastic material, the method has the advantages of light weight, high strength, good corrosion resistance, good insulation property and good heat insulation property.
The invention solves the problems through the following technical means:
a hand lay-up forming method for composite material automobile parts comprises the following steps:
s1: coating a layer of resin on the molding surface of the automobile part mold;
s2: laying a layer of reinforcing material on the resin;
s3: compressing the reinforcing material and the resin;
s4: coating a layer of resin on the surface after the compaction;
s5: and repeating the steps S2-S4 until the required thickness of the automobile part is achieved.
Further, the total thickness of the resin and the reinforcing material passing through the steps S1 to S3 is less than 4 mm.
Further, the reinforcing material in the step S2 is a surfacing mat or a chopped strand mat.
Further, in the step S2, the surfacing mat is laid and then cured, wherein the curing condition is heating for 1-2 hours at the temperature of 30-60 ℃.
Further, in the step S2, burrs and bubbles are removed after the surface felt is cured.
Further, in the steps S2 to S4, the resin is required to completely wet the entire surface of the reinforcing material, so that the voids inside the reinforcing material are completely filled with the resin.
Further, in the steps S2 to S4, the fibers of the reinforcing material are prevented from being disordered.
Further, in the step S2, the surface felt or the chopped strand mat is a continuous non-spliced whole.
Further, in the step S4, a roller is used for rolling.
Further, in the step S5, the position of the automobile part is thickened or a reinforcing rib is arranged.
The invention has the beneficial effects that:
compared with the parts prepared by the traditional metal material or plastic material, the composite material automobile part hand lay-up forming method has the advantages of light weight, high strength, good corrosion resistance, good insulativity and good heat insulation.
Detailed Description
The present invention will be described in further detail below with reference to examples. The features and advantages of the present invention will become more apparent from the description. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used for convenience in describing and simplifying the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
The invention discloses a hand lay-up forming method of a composite material automobile part, which comprises the following steps of S1: coating a layer of resin on the molding surface of the automobile part mold; s2: laying a layer of reinforcing material on the resin; s3: compressing the reinforcing material and the resin; s4: coating a layer of resin on the surface after the compression; s5: and repeating the steps S2-S4 until the required thickness of the automobile part is achieved. Compared with the parts prepared from the traditional metal material or plastic material, the automobile parts formed by manually pasting the composite material thickened layer by layer have the advantages of light weight, high strength, good corrosion resistance, good insulativity and good heat insulation.
Preferably, the total thickness of the resin and the reinforcing material subjected to steps S1-S3 is less than 4 mm. If the thickness of the part is within 4 mm, the part can be molded at one time, and when the thickness of the part is greater than 4 mm, the part is thickened and cured layer by layer for multiple times, so that the problem that the quality of the part is affected by Jiao Bianhuang caused by poor curing and heat dissipation is avoided.
Preferably, the reinforcing material in the step S2 is a surfacing mat or a chopped strand mat. The reinforcing material is glass fiber surface felt or chopped strand felt, and has good physical properties.
Preferably, in the step S2, the surfacing mat is laid and then cured, and the curing condition is heating at a temperature of 30 to 60 ℃ for 1 to 2 hours. When the reinforcing material is first laid, it should be cured and then the subsequent material should be laid. Preferably, in the step S2, burrs and bubbles are removed after the surface felt is cured.
Preferably, in the steps S2 to S4, the resin is required to completely wet the entire surface of the reinforcing material, so that the voids inside the reinforcing material are completely filled with the resin. The gaps in the glass fibers are completely filled with resin through rolling, so that the first layer of reinforcing material is ensured to be completely soaked in the resin, bubbles caused by thermal expansion in the process of preparing and using parts are avoided, and the problem that the parts used under high-temperature adjustment have the bubbles can be particularly avoided.
Preferably, in the steps S2 to S4, the fibers of the reinforcing material are prevented from being tangled. When resin is filled, if resin is not infiltrated at some corner positions, the resin is infiltrated into the glass fiber in a light touch mode, so that the fiber of the reinforced material is prevented from being disordered, and the strength of the part is prevented from being influenced.
Preferably, in the step S2, the surfacing mat or the chopped strand mat is a continuous non-spliced whole. When the same layer of reinforcing material is laid, the surfacing mats or chopped mats used are structurally continuous and cannot be cut or spliced randomly. If the limitation due to the size, complexity and the like of the part is difficult to achieve, the pasting can adopt a butt-joint type layering, and the lap joints of each layer need to be staggered until the required thickness of the product is pasted. In order to ensure the structural strength of the part, the two reinforcing materials should be lapped, and the thickness of the lapping is about 50 mm. And the position of each layer overlapping should be staggered as much as possible.
Preferably, in the step S4, a roller is used for rolling.
Preferably, in the step S5, the position of the automobile part is thickened or a reinforcing rib is arranged. Thus, the structural strength of the part can be ensured to meet the design requirement.
In summary, the composite material hand lay-up forming method for automobile parts of the embodiment adopts the composite material hand lay-up forming process to prepare the automobile parts, and compared with the parts prepared by traditional metal materials or plastic materials, the composite material hand lay-up forming method for automobile parts has the advantages of light weight, high strength, good corrosion resistance, good insulating property and good heat insulation property.
Any embodiment disclosed herein above is meant to disclose, unless otherwise indicated, all numerical ranges disclosed as being preferred, and any person skilled in the art would understand that: the preferred ranges are merely those values which are obvious or representative of the technical effect which can be achieved. Since the numerical values are too numerous to be exhaustive, some of the numerical values are disclosed in the present invention to illustrate the technical solutions of the present invention, and the above-mentioned numerical values should not be construed as limiting the scope of the present invention.
Meanwhile, if the invention as described above discloses or relates to parts or structural members fixedly connected to each other, the fixedly connected parts can be understood as follows, unless otherwise stated: a detachable fixed connection (for example using bolts or screws) is also understood as: non-detachable fixed connections (e.g. riveting, welding) can, of course, also be replaced by one-piece structures (e.g. manufactured in one piece using a casting process) (unless it is obvious that one-piece processes cannot be used).
In addition, terms used in any technical solutions disclosed in the present invention to indicate positional relationships or shapes include approximate, similar or approximate states or shapes unless otherwise stated. Any part provided by the invention can be assembled by a plurality of independent components or can be manufactured by an integral forming process.
Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A hand lay-up forming method for composite material automobile parts is characterized by comprising the following steps: the method comprises the following steps:
s1: coating a layer of resin on the molding surface of the automobile part mold;
s2: laying a layer of reinforcing material on the resin;
s3: compressing the reinforcing material and the resin;
s4: coating a layer of resin on the surface after the compaction;
s5: and repeating the steps S2-S4 until the required thickness of the automobile part is achieved.
2. The method for hand lay-up molding of composite automobile parts according to claim 1, wherein: the total thickness of the resin and the reinforcing material in the steps S1-S3 is less than 4 mm.
3. The method for hand lay-up molding of composite automobile parts according to claim 1, wherein: the reinforcing material in the step S2 is a surface felt or a chopped strand felt.
4. The method for hand lay-up molding of composite automobile parts according to claim 3, wherein: in the step S2, the surfacing mat is laid and then cured, wherein the curing condition is heating for 1-2 hours at the temperature of 30-60 ℃.
5. The method for hand lay-up molding of composite automobile parts according to claim 4, wherein: and in the step S2, removing burrs and bubbles after the surface felt is cured.
6. The method for hand lay-up molding of composite automobile parts according to claim 1, wherein: in the steps S2 to S4, the resin is required to completely wet the entire surface of the reinforcing material, so that the voids inside the reinforcing material are completely filled with the resin.
7. The method for hand lay-up forming of composite automobile parts according to claim 1, wherein: in steps S2 to S4, the fibers of the reinforcing material are prevented from being disturbed.
8. The method for hand lay-up molding of composite automobile parts according to claim 3, wherein: in the step S2, the surface felt or the chopped strand felt is a continuous non-spliced whole.
9. The method for hand lay-up molding of composite automobile parts according to claim 1, wherein: and in the step S4, rolling is carried out by adopting roller viscose glue.
10. The method for hand lay-up molding of composite automobile parts according to claim 1, wherein: and in the step S5, the part of the automobile part is thickened or provided with a reinforcing rib.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210958124.5A CN115384076A (en) | 2022-08-11 | 2022-08-11 | Hand lay-up forming method for composite material automobile parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210958124.5A CN115384076A (en) | 2022-08-11 | 2022-08-11 | Hand lay-up forming method for composite material automobile parts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115384076A true CN115384076A (en) | 2022-11-25 |
Family
ID=84117752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210958124.5A Pending CN115384076A (en) | 2022-08-11 | 2022-08-11 | Hand lay-up forming method for composite material automobile parts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115384076A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107351427A (en) * | 2017-06-28 | 2017-11-17 | 苏州派瑞美德汽车配件有限公司 | Cost low metal material for auto parts machinery |
| CN108773089A (en) * | 2018-04-20 | 2018-11-09 | 南安市创培电子科技有限公司 | A kind of manufacture craft of glass fiber reinforced plastics product |
-
2022
- 2022-08-11 CN CN202210958124.5A patent/CN115384076A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107351427A (en) * | 2017-06-28 | 2017-11-17 | 苏州派瑞美德汽车配件有限公司 | Cost low metal material for auto parts machinery |
| CN108773089A (en) * | 2018-04-20 | 2018-11-09 | 南安市创培电子科技有限公司 | A kind of manufacture craft of glass fiber reinforced plastics product |
Non-Patent Citations (2)
| Title |
|---|
| 任冬燕: "《玻璃钢制品手糊及模压成型》", 30 June 2011, 武汉理工大学出版社, pages: 45 - 47 * |
| 钟元: "《面向成本的产品设计：降本设计之道》", 30 April 2020, 机械工业出版社, pages: 140 - 142 * |
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