Preparation method for 3D printing novel heat preservation frame integrated wall based on numerical simulation

A 3D printing and numerical simulation technology, applied in thermal insulation, walls, ceramic products, etc., can solve the problems of cumbersome construction, and achieve the effect of good mechanical properties and thermal insulation performance

Pending Publication Date: 2022-03-01
HEBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method can reduce the hanging of insulation boards, it still needs to set up the skeleton structure of the steel mesh in advance, and the construction is still relatively cumbersome

Method used

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  • Preparation method for 3D printing novel heat preservation frame integrated wall based on numerical simulation
  • Preparation method for 3D printing novel heat preservation frame integrated wall based on numerical simulation
  • Preparation method for 3D printing novel heat preservation frame integrated wall based on numerical simulation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The invention provides a method for preparing a novel thermal insulation frame integrated wall based on numerical simulation by 3D printing of multi-component solid waste. To calculate the detailed parameters of the thermal insulation integrated wall, the following parameters need to be set during numerical simulation: the thermal conductivity of the material of the special-shaped frame part and the internal filling part, the heat capacity of the material at constant pressure, and the material density.

[0030] First, a model library is established in the numerical simulation software, and the preset structural layout plan, that is, the model in the model library, is imported during the simulation process, and the material parameters are input to obtain the thermal insulation performance effect diagram of the corresponding model.

[0031] The new thermal insulation frame integrated wall includes a special-shaped frame part and an internal filling part filled in the speci...

Embodiment 2

[0037] This example provides a method for preparing a new thermal insulation frame integrated wall based on numerical simulation of multi-component solid waste 3D printing. The ratio of materials used is as follows:

[0038] The ratio of special-shaped frame parts:

[0039] A component: 40 parts of fly ash

[0040] B component: 40 parts of mineral powder

[0041] C component: 100 parts of medium sand

[0042] Component D: 1.3 parts of recycled glass fiber

[0043] E component: sodium silicate powder (granule) 10 parts

[0044] F component: 35 parts of water

[0045] Internal filling ratio:

[0046] G component: 30 parts of fly ash

[0047] H component: 30 parts of mineral powder

[0048] Component I: 10 parts of protein-based foaming agent

[0049] Component J: 1.8 parts of recycled fiberglass fiber

[0050] K component: 30 parts of water

[0051] The shape of the wall is determined by numerical simulation software as figure 2 As shown, the 3D printing path is plan...

Embodiment 3

[0053] In this embodiment, a method for preparing a new thermal insulation frame integrated wall based on numerical simulation of multi-component solid waste 3D printing, the material ratio used is as follows:

[0054] The ratio of special-shaped frame parts:

[0055] A component: 50 parts of fly ash

[0056] B component: 50 parts of mineral powder

[0057] Component C: 3 parts of sodium hydroxide

[0058] D component: 10 parts of sodium silicate

[0059] E component: 38 parts of water

[0060] Internal filling ratio:

[0061] F component: 30 parts of fly ash

[0062] G component: metakaolin 20 parts

[0063] H component: 20 parts of water

[0064] Component I: 5 parts of 70% hydrogen peroxide solution

[0065] J component: 10 parts of sodium silicate

[0066] K component: recycled polypropylene fiber 1 part

[0067] The shape of the wall is determined by numerical simulation software as image 3 As shown, the 3D printing path is planned. The preparation process is ...

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Abstract

The invention relates to a numerical simulation-based preparation method of a 3D printing novel thermal insulation frame integrated wall. A special-shaped frame part and an internal filling part filled in the special-shaped frame part are included; wherein the special-shaped frame part is divided into an external enclosure structure and an internal supporting structure, and the special-shaped frame part and the internal filling part are printed through the 3D printing technology at the same time; the special-shaped frame part determines the frame shape meeting the requirement through numerical simulation software before printing. The novel heat preservation frame integrated wall solves the problem that the heat preservation performance and the mechanical performance of a cement-based material cannot be considered at the same time, the mechanical performance and the heat preservation performance can be improved at the same time, and the problem that the heat preservation performance of a wall cannot meet the requirement in construction is solved. In engineering practice, an insulating layer does not need to be externally pasted again, and the problems that a common wall body is composed of building blocks in construction, the integrity is not high enough, and meanwhile stress defects exist are solved. Solid waste is used as a substrate, and low carbon and waste utilization are achieved.

Description

technical field [0001] The invention belongs to the technical field of building construction, and in particular relates to a method for preparing a 3D printed novel thermal insulation frame integrated wall based on numerical simulation. Background technique [0002] At present, the external wall insulation layer commonly used in the construction field usually performs poorly in terms of mechanical properties (EPS board, glass fiber board, foamed concrete, etc.), so it can only be pasted on the outside of the wall as an insulation layer, which increases the The complexity of the construction, and the common insulation materials are prone to damage under the condition of external force. [0003] Chinese patent ZL202010098483.9 discloses a method of 3D printing thermal insulation concrete wall and concrete wall. The thermal insulation body constructed by the compromise method is to set the reinforcement mesh formed by the criss-crossing of steel horizontal bars and steel vertic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B28B1/00B28B23/00B33Y10/00E04B1/76E04B2/56E04B2/64E04B2/66C04B28/00C04B28/04C04B38/10C04B38/02
CPCB28B1/001B28B23/00B33Y10/00E04B2/56E04B2/64E04B2/66E04B1/7604C04B28/006C04B28/04E04B2103/02C04B2201/32C04B2201/50C04B2111/00181C04B18/08C04B18/141C04B14/06C04B14/42C04B12/04C04B24/14C04B20/0068C04B38/10C04B22/062C04B14/106C04B22/068C04B16/0633C04B38/02C04B18/142C04B18/26C04B22/145C04B24/16
Inventor 张默沈思么亚林
Owner HEBEI UNIV OF TECH
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