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400MPa-grade coiled rebar and preparation method and device thereof

A technology for preparing a device and a grading plate, which is applied in the field of 400 MPa-level plate screw steel, a preparation method and a preparation device, can solve the problems of increasing unsafe factors, shaking of the ladle, and inconvenient replacement of the ladle.

Active Publication Date: 2021-05-11
JIANGSU BINXIN STEEL GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is more difficult to control the performance stability of the existing snail steel, and the performance is worse than that of the circle. At the same time, the processing and casting of the snail steel is prone to ladle shaking, which increases unsafe factors. In addition, the ladle and hoisting of the snail steel processing and casting The structure is fixed, it is not convenient to replace the ladle in actual use

Method used

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  • 400MPa-grade coiled rebar and preparation method and device thereof
  • 400MPa-grade coiled rebar and preparation method and device thereof
  • 400MPa-grade coiled rebar and preparation method and device thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Such as figure 1 , 2 , 3, 4, 5, 8, 9, and 10 show a kind of preparation device of 400MPa level coil steel, comprising ladle 1, connecting ring 5 and n-shaped plate 6, and the top of n-shaped plate 6 is fixedly connected with connection The ring 5, the connecting ring 5 is connected with the external hoisting structure, the bottom of the n-shaped plate 6 is connected with a rotating structure 3 for the rotation of the ladle 1, and the rotating structure 3 includes a first rotating rod 301, a first ring gear 302, and an n-shaped plate 303 , driving motor 304, support plate 305, second rotating rod 306, second ring gear 307, rotating shaft 308, rotating shaft 308 and fixing bolt 310, U-shaped sleeve 309 is welded at the sidewall place of n-shaped plate 6, U-shaped sleeve 309 The first ring gear 302 is plugged in, the first ring gear 302 and the U-shaped sleeve 309 are screwed with fixing bolts 310 through the opened threaded holes, the outer end of the first ring gear 302...

Embodiment 2

[0045] Embodiment 2 is a further improvement to Embodiment 1.

[0046] Such as figure 1 , 2 , 3, 4, 6, and 7, the outer end of the first rotating rod 301 is connected with a locking structure 4 for locking the first rotating rod 301, and the locking structure 4 includes a rotating circular plate 401, a sliding rod 402, a fixed Plate 403, second spring 404, fixed ring 405, push ring 406, concave plate 407, movable block 408, connecting rod 409, movable tooth block 410 and fixed tooth block 411, the outer wall place of the first rotating rod 301 is fixedly connected There is a fixed ring 405 and a rotating disc 401, the rotating disc 401 is arranged on the outside of the fixing ring 405, the outer wall of the rotating disc 401 is uniformly fixedly connected with the fixed tooth block 411 along the circumferential direction, the outer wall of the fixed ring 405 is along the circumferential direction Connecting rod 409 is evenly and fixedly connected, and the outer end of connec...

Embodiment 3

[0048] Embodiment 3 is a further improvement to Embodiment 1.

[0049] A 400MPa grade coil steel, the mass percentage of its components is: C 0.16-0.23%, Si 0.28-0.43%, Mn 0.60-1.30%, P≤0.055, S≤0.065, Wu0.23-0.46%, N 0.036~0.052%, Cr≤0.25%, Mo≤0.15%, Cs≤0.15%, Cu≤0.15%, the rest is Fe and unavoidable impurities, it is difficult to control the performance stability of the coil steel, and the performance It is of great practical significance to improve economic benefits and reduce environmental pressure.

[0050] During use, a kind of preparation method of the preparation device of 400MPa level disc spiral steel, preparation method is as follows:

[0051] Step 1. The ladle 1 moves downward. The ladle 1 pushes the trapezoidal block 207 to move into the horizontal groove 208, and then the ladle 1 drives the mounting ring 202 to be inserted into the slot 204 of the support ring 203. The bottom of the support ring 203 is in contact with the slot. The bottom of 204 contacts the fi...

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Abstract

The invention discloses 400MPa-grade coiled rebar and a preparation method and device thereof, and relates to the technical field of metallurgy. The 400MPa-grade coiled rebar comprises a steel ladle, a connecting ring and an n-shaped plate, the top of the n-shaped plate is fixedly connected with the connecting ring, the connecting ring is connected with an external hoisting structure, the bottom of the n-shaped plate is connected with a rotating structure used for rotating the steel ladle, and the rotating structure comprises a first rotating rod, a first gear ring, the n-shaped plate, a driving motor, a supporting plate, a second rotating rod, a second gear ring, a rotating shaft and a fixing bolt, a connecting structure used for movably connecting the steel ladle is connected between the first rotating rod and the second rotating rod, the outer end of the first rotating rod is connected with a locking structure used for locking the first rotating rod, the locking structure comprises a rotating circular plate, a sliding rod, a fixed plate, a second spring, a fixed ring, a pushing circular ring, a concave plate, a movable block, a connecting rod, a movable tooth block and a fixed tooth block. According to the 400MPa-grade coiled rebar and the preparation method and device thereof, the loading and unloading of the steel ladle are facilitated, and the steel ladle is convenient to replace in actual use.

Description

technical field [0001] The invention relates to the technical field of metallurgy, in particular to a 400MPa-grade disc-screw steel, a preparation method and a preparation device. Background technique [0002] Rebar is a common steel product with a huge output, and its alloy cost and manufacturing cost are the basis for determining the product cost of each rebar manufacturer. The new standard of steel GB / T1499.2-2018 hot-rolled ribbed steel for reinforced concrete adds the detection of microstructure of rebar, and strictly controls the strong water penetration process of rebar. After the implementation of the new standard, the waste heat quenching process (that is, the strong water penetration process) that produces tempered martensitic structure after steel bar rolling has been eliminated. If steel bar production enterprises do not optimize and improve the microalloying and controlled rolling and controlled cooling process, Then only by greatly increasing the content of si...

Claims

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Application Information

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IPC IPC(8): C22C38/02C22C38/04C22C38/20C22C38/22B22D41/04B22D41/06B22D41/12
CPCC22C38/02C22C38/04C22C38/002C22C38/22C22C38/001C22C38/20B22D41/04B22D41/06B22D41/12
Inventor 陈禹张树江刘刚王辉周文君
Owner JIANGSU BINXIN STEEL GRP
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