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Detection device and detection method for steel billet sprayed with high-temperature anti-oxidation coating

A technology of high temperature oxidation resistance and detection device, applied in length measuring device, metal rolling, manufacturing tools, etc., can solve problems such as errors, and achieve the effect of eliminating the influence of uncertainty

Inactive Publication Date: 2020-10-13
MAANSHAN IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at problems such as errors in the detection of the use effect of high-temperature anti-oxidation coatings on steel billets in the prior art, the present invention proposes a detection device and detection method for steel billets sprayed with high-temperature anti-oxidation coatings. By comparing the quality changes of sprayed test blocks and blank test blocks before and after heating conditions, so as to reflect the effect of high-temperature anti-oxidation coatings, so as to find the best spraying parameters and maximize economic benefits

Method used

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  • Detection device and detection method for steel billet sprayed with high-temperature anti-oxidation coating
  • Detection device and detection method for steel billet sprayed with high-temperature anti-oxidation coating
  • Detection device and detection method for steel billet sprayed with high-temperature anti-oxidation coating

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] In this embodiment, a detection device for spraying high-temperature anti-oxidation coating steel billets, such as figure 1 As shown, it includes a heating furnace 1 and a billet storage table 2, on which a test billet 22 is horizontally placed, and the test billet 22 includes a horizontally placed billet 21, such as figure 2 As shown, several sets of blank test blocks 5 and sprayed test blocks 6 are placed at equal intervals on the billet 21. The main purpose of the test billet 22 is to carry the test block to complete the subsequent whole process. Its size and material The production billet is the same, about 0.23×1.4×12m, and the surface of the load-bearing test block needs to be flat; the spraying effect is reflected by the burning loss of the blank test block 5 and spraying test block 6; the steel type of the experimental test block is the same as the production billet, and the size 30×140×140mm is accurate ±1mm, the weight difference between test blocks is ±5g, the...

Embodiment 2

[0032] The detection device of a steel billet sprayed with high-temperature anti-oxidation coating in this embodiment has the same basic structure as that of Embodiment 1. The difference and improvement are as follows: figure 1 As shown, the tapping side roller table 33 is arranged horizontally, one side of which is the rolling mill side 331, the outer end of the rolling mill side 331 is connected to the rolling mill system 4; the other side of the tapping side roller table 33 is the non-rolling mill side 332 The tapped test billet 23 on the non-rolling mill side 332 is transported to the billet storage table 2 along with the roller table; the tapping side roller table 33 is used to transport the heated tapped test billet 23 to the rolling mill system 4 for rolling Or retreat, where the tapped test billet 23 transported along the rolling mill side 331 is transported to the rolling mill system 4 for rolling processing; the tapped experimental billet 23 transported along the non-ro...

Embodiment 3

[0034] The detection device for steel billets sprayed with high-temperature anti-oxidation coatings in this embodiment has the same basic structure as that of Embodiment 2. The difference and improvement lies in that it also includes an on-site test unit, which includes an experimental steel billet 22 and an experimental steel billet after being discharged. 23 and an electronic platform scale. The electronic platform scale has a measurement accuracy of 0.1g and a maximum range of 5000g. The mass of the test block on the experimental billet before and after burning is weighed, and the change in the burning loss of the test block is calculated to reflect the high temperature oxidation resistance Coating effect;

[0035] In this embodiment, the test blocks before and after the experiment are weighed, counted, and calculated to obtain the data in the following table, as shown in Table 1:

[0036] Table 1

[0037]

[0038] It can be seen from Table 1 that after spraying high-temperature ...

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Abstract

The invention discloses a detection device and detection method for a steel billet sprayed with a high-temperature anti-oxidation coating, and belongs to the technical field of steel billet surface quality detection. The detection device for the steel billet sprayed with the high-temperature anti-oxidation coating comprises a heating furnace and a steel billet storage table, experimental steel billets are horizontally placed on the steel billet storage table, the experimental steel billets comprise horizontally placed steel billets, and a plurality of groups of test blocks are placed on the steel billets at equal intervals. According to the detection method, the test blocks are shielded so as to distinguish blank test blocks and sprayed test blocks; the experimental steel billet loaded with the test blocks is sprayed on line and heated in the furnace, and the experimental steel billet after the being discharged from the furnace is independently lifted out and stored; and the test blocks on the experimental steel billets of the same production batch are quickly taken down, and the use effect of the high-temperature anti-oxidation coating is reflected through counting and calculatingthe burning loss change conditions of the sprayed test blocks and the blank test blocks, so that the uncertainty influence caused by different production conditions is eliminated.

Description

Technical field [0001] The invention relates to the technical field of steel billet surface quality detection, and more specifically to a detection device and a detection method for steel billets sprayed with high-temperature anti-oxidation coatings. Background technique [0002] Before the steel billet is rolled, it generally needs to be heated at a high temperature in a heating furnace, and its surface and the oxygen in the atmosphere undergo a strong oxidation reaction at high temperature to generate a large amount of scale. According to statistics, in the production of metallurgical enterprises, the oxidation burning loss caused by high-temperature oxidation on the surface of the steel billet amounts to 0.5-2.5%; in machinery manufacturing plants, this oxidation burning loss accounts for about 5% of the weight of the blank during forging. Oxidation burnout not only affects the yield loss of iron and steel production, but also the poor removal of oxide scale directly affects p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B38/00C21D1/70
CPCB21B38/00C21D1/70
Inventor 周劲军翟炜黄敏
Owner MAANSHAN IRON & STEEL CO LTD
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