High-strength aluminum alloy embedded channel module and embedded channel forming process

Abstract

The invention discloses a high-strength aluminum alloy embedded channel module. The high-strength aluminum alloy embedded channel module comprises an embedded channel and a T-shaped bolt; the embeddedchannel consists of a C-shaped groove, and an anchor rod fixedly connected to the back surface of the groove bottom of the C-shaped groove; the anchor rod and the C-shaped groove form an integral structure through pushing molding; a notch of the C-shaped groove is two inner flange structures symmetrical about the middle line of the C-shaped groove; the opposite surfaces of the two inner flanges are of rack structures; a bolt head of a T-shaped bolt consists of a first cuboid and a second cuboid; the second cuboid is joined with a bolt rod of the T-shaped bolt; the first cuboid and the secondcuboid are the same in width, and are both narrower than the notch of the C-shaped groove; the length of the first cuboid is larger than the width of the notch of the C-shaped groove; and engagement teeth engaged with corresponding racks are arranged on two width side surfaces of the second cuboid. The high-strength aluminum alloy embedded channel module has the following advantages: the strengthand the load capacity of the embedded channel are improved; and the density of high-strength aluminum alloy materials is lower, so that consumed materials are fewer under the same load, and the toothantiskid capacity is improved.

Description

technical field [0001] The invention relates to the field of comprehensive pipeline support in the electromechanical installation industry, in particular to a high-strength aluminum alloy pre-embedded channel component and a pre-embedded channel forming process. Background technique [0002] In infrastructure projects, more and more pre-embedded channel technology is used, that is, pre-embedded channel is implanted before site pouring and prefabricated reinforced concrete, and it is matched with T-bolt on any inclined surface and arc surface instead of expansion. Bolts to fix products such as hanging pipes. [0003] The existing pre-embedded channel is a hot-rolled steel toothed C-shaped channel, such as Figure 11-13 As shown, the C-shaped channel body 1.1 and the anchor rod 1.2 on the back are processed separately, and a plurality of anchor rods 1.2 are connected to the channel body 1.1 by riveting or welding. Due to the local stress concentration at the welding part, the...

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Problems solved by technology

Due to the local stress concentration at the welding part, the welding part of the C-shaped channel body 1.1 is deformed, and the concrete will leak into the inner side of the C-shaped channel during pre-embedding, which will affect the pre-embedded effect

Cold pressure riveting means that the end of the anchor rod 1.2 is plastically deformed by applying pressure to form a large local raised step, which affects the appearance of the product. The contact area between the anchor rod 1.2 and the channel body 1.1 is small, and the thickness around the inner riveting head is not large. Uniform, anchor 1.2 fixed unstable

[0004] like Figure 15.1 , 15.2 As shown, the C-shaped channel body 1.1 is generally processed by Q235 hot-rolled steel 1.3. The forming process is to first carry out tooth-shaped rolling on the two sides of the hot-rolled steel strip 1.3 through the rolling gear 1.4, and then roll it into a C-shaped channel body 1.1; as Figure 11 , Figure 12 As shown, the meshing teeth 1.5 of the C-shaped channel body 1.1 and the T-shaped bolts are located inside the C-shaped groove of the C-shaped channel body 1.1, which is inconvenient for tooth detection; The regularity makes the meshing teeth 1.5 out of the rolling shape irregular, the width and depth are small, and the outline of the teeth is not clear, especially after hot-dip galvanizing. Figure 14 The corner deposition 1.6 phenomenon shown affects the normal meshing, and the anti-slip ability of the teeth is low. During the engineering installation or normal operation, the teeth are overloaded and slipped, resulting in collapse accidents.

[0005] In terms of surface anti-corrosion treatment, the existing C-shaped channel body 1.1 is generally processed by Q235 hot-rolled steel strip 1.3. Carbon steel material itself does not have anti-corrosion function, and its anti-corrosion function depends on the thickness and quality of the surface hot-dip galvanized layer , the hot-dip galvanizing process itself has many defects. Zinc nodules and zinc slag are left on the surface of the workpiece, and the surface of the galvanized layer is prone to fish-scale peeling, blistering, and white spots, which destroys the surface anti-corrosion layer and shortens its service life; at the same time, the The process environment is seriously polluted, and the waste lye, waste acid, harmful gas, etc. produced cause environmental pollution

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