A basalt fiber thermal insulation material design method based on 3D printing

Abstract

The application belongs to the field of internal combustion engine parts design and manufacturing, and discloses a basalt fiber thermal insulation material design method based on 3D printing. The method comprises the following steps: S1, obtaining a three-dimensional model of a part to be wrapped; S2, preprocessing the three-dimensional model to export a three-dimensional model that can be directly printed, and performing 3D printing on the part according to the three-dimensional model; S3, calling the design parameters of the thermal insulation material according to the product database; S4, modifying the sample fitting based on the printed model; and S5, outputting the design drawing. The method prints the part object by using the 3D printer, can more intuitively evaluate the size and fit of the designed thermal insulation material for wrapping the part, adjusts the drawing in time according to the fitting, saves the part mold opening cost, improves the accuracy of product design, and simplifies the design process.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of internal combustion engine component design and manufacturing, in particular to a basalt fiber thermal insulation material design method based on 3D printing. BACKGROUND

[0002] Internal combustion engines are widely used in transportation, agricultural machinery and various engineering machinery, and have become an indispensable source of power, playing an important role in the national economy. In order to meet the increasingly stringent emission regulations for ultra-low emissions of internal combustion engines, exhaust aftertreatment technology has become a standard configuration of internal combustion engines. The thermal management based on the exhaust system is crucial to improving the conversion efficiency and durability of the exhaust aftertreatment system. Therefore, in order to improve the exhaust temperature and enhance the conversion efficiency of the aftertreatment, it is necessary to wrap the exhaust tailpipe with thermal insulation material. Reduce the heat loss of the exhaust pipe, thereby improving the vehicle emission performance.

[0003] However, the current design of basalt fiber thermal insulation material wrapping scheme based on various types of special-shaped parts (such as superchargers, aftertreatment, exhaust pipes, etc.) is mostly to open a mold for the parts or require the customer to provide a sample part. According to the sample, the thermal insulation layer is designed by sampling, which is high in cost. If the customer cannot provide a sample, the sampling must be done according to the three-dimensional model, which is low in accuracy and sometimes cannot perfectly fit the part, so a better design method is needed to reduce the cost and improve the design accuracy of the thermal insulation layer. SUMMARY

[0004] The purpose of the present application is to overcome the defects of the above-mentioned existing design method and provide a basalt fiber thermal insulation material design method based on 3D printing with low cost and high design accuracy.

[0005] The purpose of the present application can be achieved by the following technical solutions:

[0006] A basalt fiber thermal insulation material design method based on 3D printing, comprising the following steps:

[0007] S1, obtaining a three-dimensional model of a part to be wrapped;

[0008] S2, preprocessing the three-dimensional model to export a three-dimensional model that can be directly printed, and importing the three-dimensional model into a 3D printer to 3D print the part;

[0009] S3, according to the customer's thermal insulation temperature requirement, based on the product database, considering the performance and cost, calling the design parameters of the thermal insulation material, including thickness, bulk density, and composite method, as shown in Table 1, which is part of the test data of different thickness, bulk density and composite method. Based on the experimental data, a product database is established;

[0010] Table 1 Test data of different thickness, bulk density and composite method

[0011]

[0012] S4, based on the three-dimensional model of the parts, the three-dimensional design of the heat preservation layer is carried out and the sample is made, the heat preservation material of the sample is matched with the printed parts, and if it is not matched, the drawing is modified;

[0013] S5, output design drawing.

[0014] In the above technical solution, further, in S1, the model only needs to take the part to be wrapped.

[0015] Further, in S3, according to the product database, the thickness, bulk density and composite method of the basalt fiber heat preservation material required by the customer are called.

[0016] Preferably, in S2, 3D printing is formed into a three-dimensional printing.

[0017] Compared with the prior art, the present application has the following beneficial effects:

[0018] The present application adopts 3D printing technology to manufacture the wrapped parts, designs the wrapping scheme based on the three-dimensional formed parts and makes a sample, then matches the sample heat preservation material with the parts, modifies the drawing in time according to the wrapping effect, and finally outputs the best scheme design drawing.

[0019] The method designed by the present application greatly reduces the material cost and improves the design accuracy, so that the heat preservation product can perfectly fit the special-shaped parts. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 The present application is based on the design method flow chart of basalt fiber heat preservation material based on 3D printing. DETAILED DESCRIPTION

[0021] The present application will be described in detail below in combination with the drawings and specific embodiments. The present embodiment is implemented on the basis of the technical solution of the present application, and gives a detailed implementation and specific operation process, but the protection scope of the present application is not limited to the following examples.

[0022] Example 1:

[0023] A basalt fiber heat preservation material design method based on 3D printing, comprising:

[0024] Reference Figure 1A design method for basalt fiber thermal insulation material based on 3D printing includes: S1, obtaining a three-dimensional model of the component to be wrapped; S2, preprocessing the three-dimensional model, exporting it as a printable three-dimensional model, and 3D printing the component based on the three-dimensional model; S3, calling the design parameters of the thermal insulation material from the product database; S4, performing prototyping and adaptation modifications based on the printed model; S5, outputting design drawings.

[0025] Example 2

[0026] A design method for basalt fiber thermal insulation material based on 3D printing, this embodiment being a post-processing wrapping design, includes:

[0027] A design method for basalt fiber insulation material based on 3D printing includes: S1, obtaining a 3D model of the post-processor to be wrapped; S2, preprocessing the 3D model, exporting it as a printable 3D model, and 3D printing the parts based on the 3D model; S3, according to the customer's thermal insulation requirements (outer surface temperature not exceeding 200℃ at an exhaust temperature of 650℃), retrieving the design parameters of the insulation material (thickness: 8mm, density 120kg / m³) from the database. 3 S4, perform prototyping and adaptation modifications based on the printed model; S5, output design drawings.

[0028] Example 3

[0029] A design method for basalt fiber insulation material based on 3D printing, in this embodiment being an exhaust pipe wrapping design, includes:

[0030] A design method for basalt fiber insulation material based on 3D printing includes: S1, obtaining a 3D model of the exhaust pipe to be wrapped; S2, preprocessing the 3D model, exporting it as a printable 3D model, and 3D printing the components based on the 3D model; S3, according to the customer's thermal insulation requirements (outer surface temperature not exceeding 180℃ at an exhaust temperature of 600℃), retrieving the design parameters of the insulation material (thickness: 10mm, density 120kg / m³) from the database. 3 S4, perform prototyping and adaptation modifications based on the printed model; S5, output design drawings.

[0031] The preferred embodiments of the present invention have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of the present invention without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of the present invention through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A basalt fiber thermal insulation material design method based on 3D printing, characterized in that, It comprises the following steps: S1, obtaining a three-dimensional model of a part to be wrapped; S2, preprocessing the three-dimensional model to export a three-dimensional model that can be directly printed, and importing the three-dimensional model into a 3D printer to perform 3D printing forming on the part; S3, according to the heat insulation temperature requirement of the customer, considering the performance and cost to call the design parameters of the insulation material based on the product database; S4, based on the three-dimensional model of the part, the three-dimensional design of the insulation layer is carried out and the sample is made, the sample of the insulation material is matched with the printed part, and if it is not matched, the drawing is modified; S5, outputting the design drawing.

2. The basalt fiber thermal insulation material design method based on 3D printing according to claim 1, characterized in that, According to the product database, the thickness, bulk density and composite method of the basalt fiber insulation material required by the customer are called based on the customer's requirements.

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