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Folding tooth channel steel for rail transit tunnel and preparation process thereof

A technology for rail transit and preparation process, applied in tunnels, tunnel linings, applications, etc., can solve the problems of mold preparation, high grinding cost, difficult product changeover, complex processing technology, etc., to achieve high bearing capacity and reduce holes. The effect of simple design and processing technology

Active Publication Date: 2019-06-21
WUXI INST OF COMMERCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the production process of embedded channel steel at home and abroad mainly adopts multi-pass continuous hot rolling. , The cost of grinding is high, and it is difficult to change the product type

Method used

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  • Folding tooth channel steel for rail transit tunnel and preparation process thereof
  • Folding tooth channel steel for rail transit tunnel and preparation process thereof
  • Folding tooth channel steel for rail transit tunnel and preparation process thereof

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment 1

[0028] The folded tooth alveolar steel is formed by bending the strip plate with equal thickness. First, the edge parts on both sides of the strip plate are turned up and pressed to form the tooth-shaped part 3, and then the teeth are pressed on the upper surface F of the tooth-shaped part 3. as attached figure 2 or attached image 3 As shown, then carry out symmetrical vertical bending on both sides of the belt plate to form the supporting part 2, as shown in the attached Figure 5 As shown, finally bend the belt plate upward again to form the support leg 1, so that the support part is horizontal, as shown in the attached Figure 6 shown. The cross-sectional view of the formed folded alveolar steel is a rectangular frame structure with one side open.

[0029] The height A of the formed folded tooth alveolar steel is 23mm; the total width B is 38mm; the opening width b is 18mm; the total height a of the tooth segment is 6mm; the tooth height h is 2mm; the wall thickness t ...

specific Embodiment 2

[0037] The folded tooth alveolar steel is formed by bending the strip plate with equal thickness. First, the edge parts on both sides of the strip plate are turned up and pressed to form the tooth-shaped part 3, and then the teeth are pressed on the upper surface F of the tooth-shaped part 3. as attached figure 2 or attached image 3 As shown, then carry out symmetrical vertical bending on both sides of the belt plate to form the supporting part 2, as shown in the attached Figure 5 As shown, finally bend the belt plate upward again to form the support leg 1, so that the support part is horizontal, as shown in the attached Figure 6 shown. The cross-sectional view of the formed folded alveolar steel is a rectangular frame structure with one side open.

[0038] The height A of the formed folded tooth alveolar steel is 25mm; the total width B is 50mm; the opening width b is 22mm; the total height a of the tooth segment is 6mm; the tooth height h is 2mm; the wall thickness t ...

specific Embodiment approach 3

[0046] The folded tooth alveolar steel is formed by bending the strip plate with equal thickness. First, the edge parts on both sides of the strip plate are turned up and pressed to form the tooth-shaped part 3, and then the teeth are pressed on the upper surface F of the tooth-shaped part 3. as attached figure 2 or attached image 3 As shown, then carry out symmetrical vertical bending on both sides of the belt plate to form the supporting part 2, as shown in the attached Figure 5 As shown, finally bend the belt plate upward again to form the support leg 1, so that the support part is horizontal, as shown in the attached Figure 6 shown. The cross-sectional view of the formed folded alveolar steel is a rectangular frame structure with one side open.

[0047] The height A of the formed folded tooth alveolar steel is 36mm; the total width B is 53mm; the opening width b is 22mm; the total height a of the tooth segment is 7mm; the tooth height h is 3mm; the wall thickness t ...

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Abstract

The invention discloses folding tooth channel steel for a rail transit tunnel. The folding tooth channel steel is provided with a supporting leg formed by bending, the end of the supporting leg is bent inwards to form a supporting part, the end of the supporting part is downwards pressed and flanged to form a tooth-shaped part, teeth are pressed on the back of the tooth-shaped part, and the longitudinal section of the folding tooth channel steel is of a frame structure with an opening in one face. A preparation process of the folding tooth channel steel for the rail transit tunnel disclosed bythe invention comprises: a plate strip with equal thickness is used as a raw material; a cross section variable-thickness plate with a thick edge and a thin middle is formed through two-end bending and edge pressing, hobbing is conducted on the thick edge area, a plate strip with teeth on the two sides is machined, and then the folded tooth steel channel is obtained through multi-pass bending machining and shape finishing. According to the folding tooth channel steel for the rail transit tunnel and the preparation process of the folding tooth channel steel, the manufacturing cost of the folding tooth channel steel can be reduced.

Description

technical field [0001] The invention relates to a folded tooth alveolar steel and a preparation method thereof, belonging to the technical field of metal processing, in particular to the field of Hafen channel steel processing. Background technique [0002] The pre-embedded channel steel is poured into the concrete to fix the structural components. It is used in conjunction with toothed T-bolts. It has the advantages of convenient fastening, high bearing capacity, and can be adjusted arbitrarily. Fastener of choice for engineering projects. Among them, the Hafen groove is a typical embedded channel steel. The Hafen groove is a kind of embedded part and embedded device for construction. Firstly, the C-shaped groove is embedded in the concrete, and then the big head of the T-shaped bolt is buckled into the C In the groove, the components to be installed are then fixed with T-bolts. The shape of embedded channel steel is similar to channel steel, but there is an inwardly curv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D11/10E21F17/00B21D35/00B21H3/04
Inventor 周小红路露
Owner WUXI INST OF COMMERCE
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