Abrasion proof pipe with ternary composite material as liner and preparing technique thereof
A composite material and preparation technology, applied in the direction of pipes, rigid pipes, mechanical equipment, etc., can solve tearing, poor quality controllability, unsatisfactory strength, toughness, wear resistance, corrosion resistance, ease of processing, etc. problems, to achieve the effect of reducing local stress concentration, reducing impact stress, and avoiding external medium corrosion
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Embodiment 1
[0051] A wear-resistant straight pipe lined with a ternary composite material with uniform wall thickness, see Figure 1, Figure 2 and Figure 3. It is composed of an outer steel pipe 1 and a wear-resistant inner lining 2, and the wear-resistant inner lining 2 is composed of a wire mesh 3, a ceramic rod 4 and a composite material 5. In this embodiment, the diameter of the outer layer steel pipe 1 is 500 mm, and the thickness of the wear-resistant lining 2 is 10 mm. The wire mesh 3 is braided by Φ0.5mm nano-structured high-carbon steel wire, and the mesh size is 1.5mm; the wire mesh 3 is closely stacked, and it accounts for the volume fraction of the entire ternary composite material-lined wear-resistant pipe 20%; the ceramic rod 4 is made of tungsten carbide, and other hard materials can also be used; the diameter of the ceramic rod 4 is 1.5mm, and its length is equal to the thickness of the metal mesh 3 stack (≤10mm); the ceramic rod 4 is embedded in the metal In the mesh of t...
Embodiment 2
[0059] A wear-resistant three-way pipe lined with ternary composite material, see Fig. 4, Fig. 2 and Fig. 3. It is composed of an outer steel pipe 1 and a wear-resistant inner lining 2, and the wear-resistant inner lining 2 is composed of a wire mesh 3, a ceramic rod 4 and a composite material 5. In this embodiment, the diameter of the outer steel pipe 1 is 650 mm, and the thickness of the wear-resistant lining 2 is 15 mm. The wire mesh 3 is braided by Φ0.8mm low-carbon alloy steel wire with a mesh size of 2mm; the wire mesh 3 is tightly stacked; the ceramic rod 4 is made of alumina, and can also be made of tungsten carbide or silicon carbide; ceramic The rod 4 has a diameter of 2mm, and its length is equal to the laminated thickness of the wire mesh 3 (≤15mm); the ceramic rod 4 is embedded in the mesh of the wire mesh 3; the composite material 5 is made of polyethylene.
[0060] The preparation process steps of Example 2 are as follows, see process flow diagram 9.
[0061] ...
Embodiment 3
[0068] A ternary composite material-lined wear-resistant elbow, see Fig. 5, Fig. 6, Fig. 2 and Fig. 3. It is composed of an outer steel pipe 1 and a wear-resistant inner lining 2, and the wear-resistant inner lining 2 is composed of a wire mesh 3, a ceramic rod 4 and a composite material 5. In this embodiment, the diameter of the outer layer steel pipe 1 is 300 mm, and the thickness of the wear-resistant lining 2 is 10 mm. The wire mesh 3 is braided by Φ0.5mm low-carbon alloy steel wire with a mesh size of 1.8mm; the wire mesh 3 is tightly stacked; the ceramic rod 4 is made of alumina, and can also be made of tungsten carbide or silicon carbide; The diameter of the ceramic rod 4 is 1.8mm, and its length is equal to the laminated thickness of the wire mesh 3 (≤10mm); the ceramic rod 4 is embedded in the mesh of the wire mesh 3; the composite material 5 is made of polyurethane.
[0069] The preparation process steps of Example 3 are as follows, see process flow diagram 9.
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