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Polyurethane-based wear-resistant composite material and construction process

A composite material, polyurethane technology, used in polyurea/polyurethane coatings, special surfaces, coatings, etc., can solve problems such as the lack of good reputation technical solutions

Pending Publication Date: 2022-08-05
山西维力固科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] At present, there is no technical solution with a good reputation for repairing large-area wear of conveyor belts at home and abroad.

Method used

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  • Polyurethane-based wear-resistant composite material and construction process
  • Polyurethane-based wear-resistant composite material and construction process
  • Polyurethane-based wear-resistant composite material and construction process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] Example 1. Selection and optimization of properties of matrix-phase cast polyurethane:

[0060] The matrix phase of the composite material of the present invention and the material of the existing repair glue belong to the casting type polyurethane. Such materials have mature technology, many varieties, and a wide range of choices. When selecting the matrix phase of the composite material of the present invention, the main focus is on the physical property parameters and curing characteristic parameters of the cast polyurethane. The physical properties that can be used for the matrix phase casting type polyurethane of the composite material of the present invention are shown in Table 4, and the curing characteristic parameters that can be used for the matrix phase casting type polyurethane of the composite material of the present invention are shown in Table 5.

[0061] Table 4: Physical Properties of Matrix Phase Cast Polyurethane

[0062]

[0063] Table 5: Room t...

Embodiment 2

[0071] Embodiment 2, matrix phase and rubber bonding strength test:

[0072] One of the quality indicators of the composite material of the present invention is that the bonding strength of the composite material of the present invention and the rubber of the conveyor belt should meet the requirements of high probability of non-degumming (the technology and process of bonding between the matrix phase and the rubber are well known by professionals in this field. , and it is not a claim of this patent, so it will not be repeated here). In order to make the advantages of the present invention clearer, this embodiment focuses on the bonding test method and the actual bonding strength.

[0073] Test method: 180° tensile peel test, non-calibration test.

[0074] Take a 50 cm square conveyor belt rubber plate, use a steel wire wheel to grind the surface out of the original rubber interface, brush the company's V210 rubber treatment agent twice, and coat the prepared fast-curing 222 ...

Embodiment 3

[0077] Example 3. Selection and optimization of reinforcing phase inorganic aggregate material:

[0078] One of the quality indicators of the composite material of the present invention is that the composite material has excellent wear resistance. In order to achieve this goal, the present invention compares the material and hardness characteristics of each friction object in the conveyor belt running system (see Table 1 and Table 2), and proposes and adopts "the hardness of the reinforcement phase is significantly higher than that of the material particles and additional devices". According to the formula design concept, the type of composite reinforcement phase is preferably high-hardness quartz SiO 2 , ceramic Al 2 O 3 , silicon carbide, SiC and other monomers or mixtures, so that the hardness value of the reinforcing phase is optimized at Mohs 6-9.5, which is much larger than the hardness of the material particles and additional devices, laying a theoretical foundation f...

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Abstract

The invention relates to the field of polyurethane wear-resistant composite materials and the field of wear repair and remanufacturing of heavy-duty rubber conveying belts, in particular to a polyurethane-based wear-resistant composite material and a construction technology. Compared with the prior art, the invention has the following obvious differences in novelty, creativity and practicability: different anti-wear principles, different material attributes, different product production processes, different key technologies of product quality, different product senses, different construction ingredient steps and different application effects; the embodiment shows that the polyurethane-based wear-resistant composite material and the construction process provided by the invention are a high-quality scheme for solving the problem of large-area wear repair of a heavy-load conveying belt.

Description

technical field [0001] The invention relates to the field of polyurethane wear-resistant composite materials and the field of heavy-duty rubber conveyor belt wear repair and remanufacturing, in particular to a polyurethane-based wear-resistant composite material, and relates to a construction process for online rapid repair of heavy-duty rubber conveyor belt wear. Background technique [0002] Heavy-duty rubber conveyor belts are the key equipment for large-scale bulk material transportation enterprises. Their types include steel belts, fiber belts, tubular belts, skirt belts, etc.; they are as short as 100 meters and as long as thousands of meters, and most of them operate continuously for a long time. , widely used in mining, cement, electric power, steel, wharf and other industries. The long-distance and large-area wear of the conveyor belt is one of the main reasons for the scrapping of the conveyor belt. The passive shutdown caused by the wear of the conveyor belt often...

Claims

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Application Information

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IPC IPC(8): C09D175/04C09D7/61B05D5/08B05D7/24
CPCC09D175/04C09D7/61B05D5/08B05D7/24B05D2503/00C08K2003/2227C08K3/34C08K3/22C08K3/36
Inventor 任子成
Owner 山西维力固科技股份有限公司