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Process for adopting locating method for repairing abrasion of rolling mill house

A technology of rolling mill archway and positioning method, which is applied in the field of repair, can solve the problems of high cost, long construction period, and inability to complete repair in a short time, and achieve the effect of short repair time, low repair cost, and guaranteed size and shape tolerance

Inactive Publication Date: 2017-09-19
淄博福世蓝高分子复合材料技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is that the cost is high, the construction period is long, and the repair cannot be completed in a short time

Method used

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  • Process for adopting locating method for repairing abrasion of rolling mill house
  • Process for adopting locating method for repairing abrasion of rolling mill house
  • Process for adopting locating method for repairing abrasion of rolling mill house

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] The present invention will be further described below in conjunction with the embodiment of repairing the wear of the 650 roughing mill archway 1.

[0046] Such as figure 1 As shown, the described matching part 2 is a slide plate, in fact all parts (balance cylinder, balance weight, bending channel fixing seat, base plate, etc.) that cooperate with the archway 1 are all all right.

[0047] Specific steps are as follows:

[0048] 1. Weld 10 M10 fixing nuts 3 on both sides of the skateboard. The welding position of the fixing nuts 3 is kept flush with the fastening bolt holes. Install M10 positioning bolts 5 and lock nuts 6 on each fixing nut 3; The two sides are welded with the positioning parts corresponding to the position of the positioning bolts 5 .

[0049] 2. Use an oxygen-acetylene flame to remove the grease on the surface of the archway 1, use an angle grinder to remove the oxide layer, and then sandblast the surface to obtain a surface above Sa2.5; the surface...

Embodiment 2

[0058] The present invention will be further described below in conjunction with the embodiment of repairing the wear and tear of the 650 finishing mill rolling mill archway.

[0059] Such as figure 2 Shown, described matching part 2 is a slide plate, in fact all parts (balancing cylinder, balance weight, bending and channeling fixing seat, base plate etc.) that cooperate with archway all can.

[0060] Specific steps are as follows:

[0061] 1. First, drill M10X1 threaded holes up and down the fastening bolt holes of the skateboard according to the location of the fastening bolt holes. Each threaded hole is equipped with M10 positioning bolts 5 and lock nuts 6 to achieve positioning purposes;

[0062] 2. Use an oxygen-acetylene flame to remove the grease on the surface of the archway, grind it with an angle grinder to remove the oxide layer, and then sandblast the surface to obtain a surface above Sa2.5; the surface of the sliding plate that matches the archway and all the f...

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Abstract

The invention belongs to the technical field of repairing and particularly relates to a process for adopting a locating method for repairing abrasion of a rolling mill house. The process comprises the following steps that (1) a fixed nut is arranged on a matching part; (2) a locating bolt and a locking nut are installed on the fixed nut; (3) impurities on the surface of the house are removed; (4) the matching part is assembled onto the house; (5) the matching clearances of the house and all positions of the matching part are measured through a feeler gauge; (6) the matching part is detached; (7) polymer composites are taken and are mixed fully and evenly; (8) the polymer composites of the corresponding thickness are smeared in the abraded position of the house; (9) the matching part is installed, the assembly size is measured, and the effect that the assembly allowance is within the required allowance range is ensured; and (10) after the materials are solidified, the locating bolt and the locking nut are detached, and repairing is completed. According to the process, due to protection of a polymer composite coating, corrosion of cooling water to the rolling mill house is avoided, the impact of a roller assembly to the house can be absorbed, and thus service life of the house is prolonged.

Description

technical field [0001] The invention relates to a technology for repairing the wear of a rolling mill archway by using a positioning method, and belongs to the technical field of repairing. Background technique [0002] In the process of iron and steel production, the working conditions of the rolling mill are very bad. The rolling cooling water is quickly atomized when it encounters the red-hot billet, and the iron oxide powder falling off the surface of the billet is sprayed around. The surface of the archway is corroded; the roll assembly will have a greater impact on the archway at the moment of biting or throwing steel. Under the combined action of the above factors, the fit clearance of the rolling mill housing continues to increase, and the phenomenon that the clearance between the rolling mill stand and the roll bearing seat exceeds the management limit often occurs. Vibration and impact are large, making the rolling process unstable, slipping easily occurs when the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P6/00
CPCB23P6/005
Inventor 于成海刘健肖慧斌
Owner 淄博福世蓝高分子复合材料技术有限公司