CN103388119A - Manufacture method of nodulation-preventing layer of coiler furnace winding drum and product thereof - Google Patents
Manufacture method of nodulation-preventing layer of coiler furnace winding drum and product thereof Download PDFInfo
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- CN103388119A CN103388119A CN2013103227027A CN201310322702A CN103388119A CN 103388119 A CN103388119 A CN 103388119A CN 2013103227027 A CN2013103227027 A CN 2013103227027A CN 201310322702 A CN201310322702 A CN 201310322702A CN 103388119 A CN103388119 A CN 103388119A
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- coiler furnace
- winding drum
- layer
- caking
- making method
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Abstract
The invention relates to the technical field of rolling equipment, and particularly relates to a manufacture method of a nodulation-preventing layer of a coiler furnace winding drum. The manufacture method of the nodulation-preventing layer of the coiler furnace winding drum comprises the following steps of (a) carrying out passivating treatment on the surface of the coiler furnace winding drum; (b) selecting a magnesium oxide base ceramic material, wherein the material is a silk material or a rod material; and (c) spraying the silk material or the rod material flame on the surface of the winding drum by utilizing a flexible wire flame gun. The manufacture method can ensure that the coiler furnace winding drum forms a pure ceramic material surface, the contact of the coiler furnace winding drum, reducing gas and ferric oxide is fully isolated, and the coiler furnace winding drum, the reducing gas and the ferric oxide are not welded with the metal; the operation temperature of the winding drum is 900-1200 DEG C, the heat-resistance temperature of a ceramic fire-proof material can exceed 2000 DEG C, the property is stable under high temperature, the internal burning loss of the winding drum from the high temperature is effectively isolated, a chap is prevented from generating, and the service life of the winding drum is greatly prolonged.
Description
Technical field
The present invention relates to the steel rolling equipment technical field, relate in particular to a kind of making method of anti-caking wart layer of coiler furnace reel.
Background technology
The long term operation of coiler furnace reel is in the environment of 900～1200 degrees centigrade, add hot media and be generally coal gas, the Steckel mill production line is when production and application, condition of high temperature lower steel plate, reel stack shell, and a series of reaction occurs in furnace reduction gas etc., dross appears in coiler furnace reel working-surface, produces serious scuffing and pit at plate surface when dross is grown up to critical size.
Follow the upgrading of each steel mill's product, and the requirement in market, the generation of reel stack shell dross and existence seriously have influence on quality product, need solve technically the dross problem at all.
Use this method to make the higher ceramic coating of intensity in mandrel surface, fully isolated stack shell, with the seam of ferric oxide, makes the ferric oxide of reduction be detained and to grow up in mandrel surface, namely can't form load mould at plate surface again, improves the product lumber recovery.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of making method method of anti-caking wart layer of coiler furnace reel.
The invention provides a kind of making method of anti-caking wart layer of coiler furnace reel, comprise the steps: that (a) carries out Passivation Treatment to the coiler furnace mandrel surface; (b) select magnesium oxide-based stupalith, described material is silk material or bar; (c) with the flexible cord flame spray gun, silk material or bar flame plating to mandrel surface are formed ceramic layer.
Flexible wire is that the need of pottery or metal wire use special flexible cord flame plating equipment spraying, the flexible cord spray gun flame plating of the French Saint-Gobain of optional use.
Preferably, the ceramic layer that step (c) is obtained carries out the mechanical workout of surface smoothness.
Preferably, the coiler furnace mandrel surface is carried out the Passivation Treatment of sandblast.
The deactivating process for the treatment of of employing sandblast is beneficial to the tight formation of ceramic layer on surface most.
Preferably, the described magnesium oxide-based stupalith mixing material that is 30%～50% magnesium oxide and 50%～70% aluminum oxide.
Preferably, the old coiler furnace reel that crackle is arranged to damaging, can first carry out the built-up welding reparation to the stack shell crackle, comprises the following steps: a, stack shell is detected a flaw; B, crackle is carried out machinery is removed and back chipping; C, the stack shell diametric(al) is machined away 8mm～13mm fatigue layer; D, with Castolin XHD2222 wlding, A407 wlding, carry out the crackle built-up welding; E, stack shell is carried out whole built-up welding.
Method provided by the present invention can be online that the inefficacy reel is carried out stupalith is compound, and can carry out secondary to the surface of destroyed and repair.
The coiler furnace reel that the present invention also provides a kind of making method of the wart layer of the anti-caking according to coiler furnace reel provided by the present invention to produce, comprise spool body, joint flange and ceramic layer, the two ends of described spool body are connected with joint flange, and the outside surface of described spool body is the ceramic layer of spraying.
This coiler furnace mandrel surface has formed a pure ceramic material surfaces, and fully isolated coiler furnace reel contacts with reducing gas and ferric oxide, not with the metal seam; The working temperature of reel is 900～1200 degrees centigrade, ceramic refractory heat resisting temperature surpass 2000 degrees centigrade, stable performance under high temperature; The scaling loss of effectively isolated high temperature to reel itself, suppress the generation of be full of cracks, increases substantially the work-ing life of reel, and after using, the life-span can improve more than 1 times.
Description of drawings
Fig. 1 is the structural representation of a kind of coiler furnace reel of the present invention.
In accompanying drawing, the list of parts of each label representative is as follows:
1, spool body, 2, joint flange, 3, ceramic layer.
Embodiment
Below in conjunction with accompanying drawing, principle of the present invention and feature are described, example only is used for explaining the present invention, not is used for limiting scope of the present invention.
As shown in Figure 1, the coiler furnace reel of producing according to the making method method of the anti-caking wart layer of a kind of coiler furnace reel provided by the present invention, comprise cylindrical circular spool body 1, joint flange 2 and ceramic layer 3, the two ends of spool body 1 all are connected with joint flange 2, and the outside surface of described spool body 1 is ceramic layer 3.
According to the making method of the anti-caking wart layer of a kind of coiler furnace reel provided by the present invention, first mandrel surface is carried out Passivation Treatment, method is sandblast, reconditioning or turning fine thread etc., preferred sandblast.
, if the old reel that crackle is arranged that damages is first repaired the stack shell crackle, comprise the following steps: 1, stack shell is detected a flaw; 2, crackle being carried out machinery removes and back chipping; 3, the stack shell diametric(al) is machined away the 10mm fatigue layer; 4, carry out the crackle built-up welding with Castolin XHD2222 wlding, A407 wlding; 5, stack shell is carried out whole built-up welding; 6, size is carried out mechanical workout.
Then Ceramics material oxidation magnesium base, can be pure zirconia magnesium, can be also the mixture etc. of magnesium oxide and aluminum oxide, and the form of described material is silk material or a bar, and preferred, selecting 30%～50% magnesium oxide and 50%～70% alumina mixture is material.
With the flexible cord flame spray gun with silk material or bar flame plating to mandrel surface, flame spray gun adopts fixed temperature.The preferred Master Jet flame spray gun that adopts, Master Jet flame spray gun can adopt the flexible cord spray gun flame plating of French Saint-Gobain.The ceramic layer bonding strength of spraying is high, heat is shaken effective, ceramic layer be heated to 1100 degrees centigrade cooling in being placed on air, 30 times without any coating damage repeatedly, continuing to be heated to 1100 degrees centigrade of hot jolt rammings in pond that are placed in 20 degrees centigrade tests, 30 times without any damage repeatedly, and the condition that this hot jolt ramming is tested is the limiting condition that can not run in normal the use.The ceramic layer material surface, fully isolated coiler furnace reel contacts with reducing gas and ferric oxide,, with the metal seam, does not prevent the appearance of dross.
In a preferred embodiment, the ceramic layer coating thickness is 0.1mm～3mm, then the ceramic coating face that obtains is carried out mechanical workout, generally adopts ground finish, is machined to needed smooth finish.
This making method makes the coiler furnace reel form a pure ceramic material surfaces, and fully isolated coiler furnace reel contacts with reducing gas and ferric oxide, not with the metal seam; The working temperature of reel is 900～1200 degrees centigrade, ceramic refractory heat resisting temperature surpass 2000 degrees centigrade, stable performance under high temperature; The scaling loss of effectively isolated high temperature to reel itself, suppress the generation of be full of cracks, increases substantially the work-ing life of reel, and after using, the life-span can improve more than 1 times.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (7)
1. the making method of the anti-caking wart layer of a coiler furnace reel comprises the following steps:
(a) the coiler furnace mandrel surface is carried out Passivation Treatment;
(b) select magnesium oxide-based stupalith, described material is silk material or bar;
(c) with the flexible cord flame spray gun, silk material or bar flame plating to mandrel surface are formed ceramic layer.
2. the making method of the anti-caking wart layer of coiler furnace reel according to claim 1, is characterized in that: also comprise step (d), the ceramic layer of step (c) acquisition is carried out the mechanical workout of surface smoothness.
3. the making method of the anti-caking wart layer of coiler furnace reel according to claim 1, it is characterized in that: the coiler furnace mandrel surface is carried out Passivation Treatment, and described passivating method is sandblast.
4. the making method of the anti-caking wart layer of coiler furnace reel according to claim 1, it is characterized in that: described magnesium oxide-based stupalith is the mixing material of 30%～50% magnesium oxide and 50%～70% aluminum oxide.
5. the making method of the anti-caking wart layer of coiler furnace reel according to claim 1, it is characterized in that: described ceramic layer thickness is 0.1mm～3mm.
6. the making method of the anti-caking wart layer of coiler furnace reel according to claim 1 is characterized in that: the old coiler furnace reel that crackle is arranged to damaging, first the stack shell crackle is carried out the built-up welding reparation, and comprise the following steps: a, stack shell is detected a flaw; B, crackle is carried out machinery is removed and back chipping; C, the stack shell diametric(al) is machined away 8mm～13mm fatigue layer; D, with Castolin XHD2222 wlding, A407 wlding, carry out the crackle built-up welding; E, stack shell is carried out whole built-up welding.
7. the coiler furnace reel that according to claim 1 to 6, the making method of the anti-caking wart layer of the described coiler furnace reel of arbitrary claim is produced, comprise spool body, joint flange and ceramic layer, the two ends of described spool body are connected with described joint flange, and the outside surface of described spool body is the ceramic layer of spraying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310322702.7A CN103388119B (en) | 2013-07-29 | 2013-07-29 | Making method of a kind of anti-caking wart layer of coiler furnace reel and products thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310322702.7A CN103388119B (en) | 2013-07-29 | 2013-07-29 | Making method of a kind of anti-caking wart layer of coiler furnace reel and products thereof |
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| Publication Number | Publication Date |
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| CN103388119A true CN103388119A (en) | 2013-11-13 |
| CN103388119B CN103388119B (en) | 2016-03-23 |
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| CN201310322702.7A Active CN103388119B (en) | 2013-07-29 | 2013-07-29 | Making method of a kind of anti-caking wart layer of coiler furnace reel and products thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001073028A (en) * | 1999-08-31 | 2001-03-21 | Nisshin Steel Co Ltd | Hearth roll for heating furnace |
| CN101113487A (en) * | 2007-09-04 | 2008-01-30 | 广州市锐优表面科技有限公司 | Annealing furnace roller surface peening coating and method for making same |
| CN102219535A (en) * | 2011-04-22 | 2011-10-19 | 瑞泰科技股份有限公司 | Recombined magnesia-alumina spinel brick with properties of nodulation and blockage prevention and high corrosion resistance, and production technology thereof |
| CN102650028A (en) * | 2011-02-25 | 2012-08-29 | 宝山钢铁股份有限公司 | Anti-agglomeration high-temperature resistant coating of furnace bottom roller |
-
2013
- 2013-07-29 CN CN201310322702.7A patent/CN103388119B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001073028A (en) * | 1999-08-31 | 2001-03-21 | Nisshin Steel Co Ltd | Hearth roll for heating furnace |
| CN101113487A (en) * | 2007-09-04 | 2008-01-30 | 广州市锐优表面科技有限公司 | Annealing furnace roller surface peening coating and method for making same |
| CN102650028A (en) * | 2011-02-25 | 2012-08-29 | 宝山钢铁股份有限公司 | Anti-agglomeration high-temperature resistant coating of furnace bottom roller |
| CN102219535A (en) * | 2011-04-22 | 2011-10-19 | 瑞泰科技股份有限公司 | Recombined magnesia-alumina spinel brick with properties of nodulation and blockage prevention and high corrosion resistance, and production technology thereof |
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| CN103388119B (en) | 2016-03-23 |
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Denomination of invention: Manufacture method of nodulation-preventing layer of coiler furnace winding drum and product thereof Effective date of registration: 20180118 Granted publication date: 20160323 Pledgee: Yantai Yinqiao financing Company limited by guarantee Pledgor: Yantai Development Zone Blue Whales Metal Co., Ltd. Registration number: 2018370000020 |