CN108220582A - The LP blades ceramic roller of automotive high intensity plate heating furnace - Google Patents
The LP blades ceramic roller of automotive high intensity plate heating furnace Download PDFInfo
- Publication number
- CN108220582A CN108220582A CN201810188190.2A CN201810188190A CN108220582A CN 108220582 A CN108220582 A CN 108220582A CN 201810188190 A CN201810188190 A CN 201810188190A CN 108220582 A CN108220582 A CN 108220582A
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- China
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- ceramic rod
- ceramic
- heating furnace
- steel bushing
- high intensity
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0006—Details, accessories not peculiar to any of the following furnaces
- C21D9/0012—Rolls; Roll arrangements
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
Abstract
The present invention relates to a kind of LP blades ceramic roller of automotive high intensity plate heating furnace, including：Ceramic rod is connected to the iron head at the both ends of the ceramic rod, the steel bushing being set on the outside of the ceramic rod, and one end of the steel bushing is fixedly installed with the ceramic rod, and the other end can freely stretch.The present invention wraps up one layer very thin of heat-resistant oxidized steel bushing by the ceramic rod surface of the automotive high intensity plate heating furnace in routine, so as to which the Al Si coatings separated in thermoformed part are directly contacted with ceramic rod, ceramic rod surface cord is avoided to cause roll breakage, extend ceramic rod service life, cost of equipment maintenance is reduced, improves equipment capacity.
Description
Technical field
The present invention relates to a kind of LP blades ceramic rollers of automotive high intensity plate heating furnace.
Background technology
While automobile is brought convenience to people's lives, the discharge of tail gas also causes heavy bear to urban environment
Load.Super-high strength steel hot technology, which is one, can not only mitigate car body weight, but also can improve the new manufacture of crashworthiness,
At home and abroad the application development of auto manufacturing is very fast.
Ceramic rod is one of main easily worn part often replaced in the high-strength steel hot producing equipment of automobile, its matter
Amount directly affects the normal operation of heat-treatment furnace and produces the yield and quality of drop stamping parts.Car is hot formed each
Component is of large quantities, and often up to up to a million, raw material are mainly 22MnB5, and most of sheet stock surface is left with 0.3mm
The Al-Si coatings of right thickness, it is therefore an objective to surface oxidation when preventing from being heated at high temperature；Thermoformed part blank width size is small or narrow,
Thickness very thin, generally only 1~2mm or so again, in production process the transmission of blank at high temperature completed by ceramic roller.Publication number
Patent " ceramic roller of automotive high intensity plate heating furnace " for CN203080024U describes a kind of heat stamping and shaping production line
Upper conventional use of ceramic rod, the both ends of the ceramic rod are connected separately with iron head, and the outer end of iron head is equipped with spindle nose, both ends
Bearing block assembly of the spindle nose respectively with heating furnace both sides is connect, and sealing element is equipped between spindle nose and the side wall of heating furnace, and spindle nose is adopted
Use cold-rolled section.In actual production the ceramic roller in the contact process of high-volume Al-Si coating blanks, the SiO on surface2Meeting
It reacts to form dross with Al-Si coatings, dross penetrates into ceramic several millimeters of depths of roller surface, so as to reduce the intensity of ceramic roller
Cause brittle fracture.The roll breakage rate that the thermoforming production line of one strip adoption conventional ceramic roller stick is annual reaches more than 30%, this is
One very big equipment maintenance cost, while roll breakage shutdown virtually also results in very big device resource waste.
Invention content
The technical problems to be solved by the invention be in existing automotive high intensity plate heating furnace ceramic roller be easy to in blank
Al-Si coatings react to form dross, so as to which the intensity for reducing ceramic roller causes the deficiency of brittle fracture.
In order to solve the above-mentioned technical problem, the technical scheme is that：A kind of automotive high intensity plate heating furnace is prevented
Ceramic roller is corroded, including：Ceramic rod is connected to the iron head at the both ends of the ceramic rod, is set in outside the ceramic rod
The steel bushing of side, one end of the steel bushing are fixedly installed with the ceramic rod, and the other end can freely stretch.
Further, one end of the ceramic rod is connected with the first iron head, and the other end is connected with the second iron head；Steel bushing
One end is fixedly connected with the first iron head；Guide pad is provided on the second iron head, the other end of steel bushing offers and institute
Guide pad is stated with suitable elongated slot, the extending direction of the elongated slot is parallel to the axial direction of ceramic rod.
Further, the guide pad and elongated slot are respectively around the multiple of even circumferential arrangement.
Further, one end of the steel bushing can releasably be set with the ceramic rod.
Further, the thickness of the steel bushing is between 0.8mm~1.5mm.
Further, the gap between the steel bushing and ceramic rod is between 0.1mm~1mm.
Further, the ceramic rod outer sheath is equipped with two coaxially arranged steel bushings, one end of two steel bushings
It is fixedly connected respectively with the iron head at ceramic rod both ends, and spacing is provided between the other end of two steel bushings.
Further, the spacing is more than the sum of high-temperature expansion elongated distance of two steel bushings.
Due to the use of above-mentioned technical proposal, the present invention has the following advantages：
1st, one layer very thin of the ceramic rod surface package of the automotive high intensity plate heating furnace of the invention in routine is heat-resisting
Resistance to oxidation steel bushing so as to which the Al-Si coatings separated in thermoformed part are directly contacted with ceramic rod, avoids ceramic rod surface
Dross causes roll breakage, extends ceramic rod service life, reduces cost of equipment maintenance, improves equipment capacity.
2nd, heat-resistant oxidized steel bushing is detachable, and ceramic rod is not limited by the heat-resistant oxidized steel bushing service life, further
Improve the service life of ceramic roller.
Description of the drawings
Fig. 1 is the structure diagram of ceramic roller described in embodiment one；
Fig. 2 is the stereogram of Fig. 1；
Fig. 3 is the enlarged cross sectional views of ceramic rod section in Fig. 1；
Fig. 4 is the structural upright schematic diagram of ceramic roller described in embodiment two.
Shown in figure：1st, ceramic rod, 2, steel bushing, 3a, 3b, iron head, 4, guide pad, 5, elongated slot.
Specific embodiment
For the ease of understanding the above objects, features and advantages of the present invention, it is illustrated with reference to embodiment.Ying Li
Solution, these embodiments are only illustrative of the invention and is not intended to limit the scope of the invention.A variety of for these embodiments repair
Change and will be apparent to those skilled in the art, the general principles defined herein can not take off
In the case of from the spirit or scope of the present invention, it is achieved in other embodiments.
Embodiment one
Referring to a kind of Fig. 1 to ceramic roller shown in Fig. 3, including：Ceramic rod 1 is connected to the both ends of the ceramic rod 1
Iron head 3a, 3b, be set in the heat-resistant oxidized steel bushing 2 in 1 outside of the ceramic rod.The ceramic rod 1 is solid or empty
Heart vitreous silica material, iron head 3a, 3b realize the ceramic rod 1 and the bearing block assembly of heating furnace both sides as support element
Connection.
One end 2a of the heat-resistant oxidized steel bushing 2 is fixedly installed with the ceramic rod 1, and other end 2b can freely stretch
Contracting.
Specific implementation is：One end 1a of the ceramic rod 1 is connected with the first iron head 3a of conventional structure, and ceramic
The other end 1b of roller stick 1 is connected with the second iron head 3b, and fixed edge sets guide pad 4 on the second iron head 3b；It is described heat-resistant oxidized
2 other end 2b of steel bushing is offered with the guide pad 4 with suitable elongated slot 5, and the extending direction of the elongated slot 5 is parallel to ceramic rod
1 axial direction.The first iron head 3a is inserted into together with one end 1a of ceramic rod 1 from the other end 2b of heat-resistant oxidized steel bushing 2,
Until guide pad 4 coordinates with elongated slot 5, then, the first iron head 3a is fixedly connected with one end 2a of heat-resistant oxidized steel bushing 2, such as：
Such as spot welding, riveting or be threadedly coupled, hook connection etc. removablies, at this point, the other end 2b of heat-resistant oxidized steel bushing 2
It may also rely on elongated slot 5 and the cooperation realization of guide pad 4 freely stretched relative to ceramic rod 1.
Heat-resistant oxidized use one end of steel bushing 2 is with the structure that ceramic rod 1 is fixedly installed, the other end can freely stretch
Very useful：In process of manufacture, the elongated distance of heat-resistant oxidized 2 expanded by heating of steel bushing is more than ceramic rod 1, when resistance to
When the other end of hot resistance to oxidation steel bushing 2 can freely stretch, avoid expansion elongated distance and drawing force generated to ceramic rod 1,
Avoid the destruction to ceramic rod 1.Meanwhile guide pad 4 generates heat-resistant oxidized steel bushing 2 constraint of circumferencial direction, when big
When producing Al-Si coated steel sheets in batches, one end 2a and other end 2b of heat-resistant oxidized steel bushing 2 are being fixedly connected with power and are leading respectively
It is rotated under the action of block 4 as ceramic rod 1 is done, the heat-resistant oxidized steel that Al-Si coated steel sheets pass through 1 surface of ceramic rod
Set 2, not with the SiO in ceramic rod 12Contact, therefore dross will not be formed so as to corrode ceramic rod 1, substantially prolong pottery
The service life of porcelain roller bar 1.If heat-resistant oxidized steel bushing 2 goes wrong, it is only necessary to the heat-resistant oxidized steel bushing 2 more renewed,
Without the much higher ceramic rod 1 of replacement cost, cost has effectively been saved.
Using heat-resistant oxidized steel bushing 2 and the composite construction of ceramic rod 1, had compared to directly using heat-resisting steel roller aobvious
The advantages of work.If ceramic roller is directly substituted using heat-resisting steel roller, it may appear that deformation of the steel rider under 900 DEG C of high temperature is so as to lead
Material is caused in the obstacle and sideslip of the process of feeding.Using the heat-resistant oxidized steel bushing of the thin-walled being sleeved on the outside of ceramic rod and the two
Between small―gap suture, it is ensured that steel bushing temperature distortion amount by ceramic rod limit within the acceptable range.
The setting of the guide pad 4 and elongated slot 5 can be one or more, such as be equal around circumference in the present embodiment
4 of even arrangement.
The selection of the wall thickness of the heat-resistant oxidized steel bushing 2 needs to weigh distortional stress and oxidation resistance, wall thickness are thicker
The torsional deformation stress that generates at high temperature of steel bushing it is larger, can fracture ceramic rod；The too thin steel bushing oxidation resistance of wall thickness
Poor, easily rust is worn.In terms of comprehensive, the thickness selection of heat-resistant oxidized steel bushing 2 is relatively thin, can between 0.8mm~1.5mm
Realize the balance of many factors, heatproof is more than 950 DEG C, realizes the optimization in ceramic roller service life.
Steel bushing diameter is customized according to the outer diameter of ceramic rod 1, and internal diameter is slightly larger than 1 outer diameter of ceramic rod, and fit-up gap is
Between 0.1mm~1mm, on the one hand assembling is considered in the selection of the range：The too small then assembly difficulty in gap is big；On the other hand it also examines
Consider transmission：The too big then rotary jumping error in gap is larger, influences the transmission of material and the balance of many factors.
Embodiment two
Another ceramic roller shown in Figure 4, including：Ceramic rod 1 is connected to the both ends of the ceramic rod 1
Iron head 3a, 3b and two coaxially arranged heat-resistant oxidized steel bushings 21,22 for being set in 1 outside of ceramic rod, two
One end of the heat-resistant oxidized steel bushing 21,22 is fixedly connected respectively with iron head 3a, the 3b at the both ends of ceramic rod 1, the other end
In freely decontroling state, and spacing d is provided between the other end of two heat-resistant oxidized steel bushings 21,22.
The effect that two heat-resistant oxidized steel bushings 21,22 are arranged on ceramic rod 1 is identical with embodiment one, is isolation steel
Al-Si coatings on plate, and heat-resistant oxidized steel bushing 21,22 being capable of dismounting and change.Different places are, the length of two steel bushings
Degree is shorter, and disassembling, assembling and replacing compares embodiment one easily, and one end need to be only fixedly connected with iron head, and other end is freely decontroled.Two resistance to
The selection of spacing d between hot resistance to oxidation steel bushing 21,22 needs the high-temperature expansion more than two heat-resistant oxidized steel bushings 21,22 to stretch
The sum of over long distances.
Claims (8)
1. a kind of LP blades ceramic roller of automotive high intensity plate heating furnace, including：Ceramic rod is connected to the ceramic rod
The iron head at both ends, which is characterized in that further include the steel bushing being set on the outside of the ceramic rod, one end of the steel bushing with it is described
Ceramic rod is fixedly installed, and the other end can freely stretch.
2. the LP blades ceramic roller of automotive high intensity plate heating furnace as described in claim 1, which is characterized in that the ceramic roller
One end of stick is connected with the first iron head, and the other end is connected with the second iron head；One end of steel bushing is fixedly connected with the first iron head；
Guide pad is provided on the second iron head, the other end of steel bushing is offered with the guide pad with suitable elongated slot, the elongated slot
Extending direction be parallel to the axial direction of ceramic rod.
3. the LP blades ceramic roller of automotive high intensity plate heating furnace as claimed in claim 2, which is characterized in that the guiding
Block and elongated slot are respectively around the multiple of even circumferential arrangement.
4. the LP blades ceramic roller of automotive high intensity plate heating furnace as described in claim 1, which is characterized in that the steel bushing
One end can releasably be set with the ceramic rod.
5. the LP blades ceramic roller of automotive high intensity plate heating furnace as described in claim 1, which is characterized in that the steel bushing
Thickness between 0.8mm~1.5mm.
6. the LP blades ceramic roller of automotive high intensity plate heating furnace as described in claim 1, which is characterized in that the steel bushing
Gap between ceramic rod is between 0.1mm~1mm.
7. the LP blades ceramic roller of automotive high intensity plate heating furnace as described in claim 1, which is characterized in that the ceramics
Roller stick outer sheath is equipped with two coaxially arranged steel bushings, and one end of two steel bushings is consolidated respectively with the iron head at ceramic rod both ends
Fixed connection, and it is provided with spacing between the other end of two steel bushings.
8. the LP blades ceramic roller of automotive high intensity plate heating furnace as claimed in claim 7, which is characterized in that the spacing
The sum of high-temperature expansion elongated distance more than two steel bushings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810188190.2A CN108220582B (en) | 2018-03-07 | 2018-03-07 | Anti-corrosion ceramic roller for automobile high-strength plate heating furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810188190.2A CN108220582B (en) | 2018-03-07 | 2018-03-07 | Anti-corrosion ceramic roller for automobile high-strength plate heating furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108220582A true CN108220582A (en) | 2018-06-29 |
| CN108220582B CN108220582B (en) | 2022-12-06 |
Family
ID=62667093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810188190.2A Active CN108220582B (en) | 2018-03-07 | 2018-03-07 | Anti-corrosion ceramic roller for automobile high-strength plate heating furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108220582B (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07173524A (en) * | 1993-12-17 | 1995-07-11 | Nippon Steel Corp | Hearth roll of continuous annealing furnace for steel sheet |
| JP2002285229A (en) * | 2001-03-28 | 2002-10-03 | Ngk Insulators Ltd | Carrying roll |
| JP2003193175A (en) * | 2001-12-25 | 2003-07-09 | Kubota Corp | Single layer sleeve roll for rolling |
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| CN202925060U (en) * | 2012-11-16 | 2013-05-08 | 黄石山力兴冶薄板有限公司 | Novel ceramic roller device for silicon steel annealing furnace |
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| CN104651577A (en) * | 2015-03-17 | 2015-05-27 | 江苏南山冶金机械制造有限公司 | Method for processing hollow ceramic furnace roller |
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2018
- 2018-03-07 CN CN201810188190.2A patent/CN108220582B/en active Active
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| JP2002285229A (en) * | 2001-03-28 | 2002-10-03 | Ngk Insulators Ltd | Carrying roll |
| JP2003193175A (en) * | 2001-12-25 | 2003-07-09 | Kubota Corp | Single layer sleeve roll for rolling |
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| CN101983904A (en) * | 2010-11-29 | 2011-03-09 | 维苏威赛璐珂陶瓷(苏州)有限公司 | Fused quartz metallurgic roller |
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| CN203559075U (en) * | 2013-09-30 | 2014-04-23 | 南阳汉冶特钢有限公司 | No-accretion non-water-cooling roller-hearth type heat treatment furnace roller |
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| CN105861808A (en) * | 2016-05-18 | 2016-08-17 | 无锡华精新材股份有限公司 | Furnace roller for tunnel type furnace kiln |
| CN206204381U (en) * | 2016-10-27 | 2017-05-31 | 烟台开发区蓝鲸金属修复有限公司 | A kind of steel ceramic combination CSP hearth rolls |
| CN208008853U (en) * | 2018-03-07 | 2018-10-26 | 苏州普热斯勒先进成型技术有限公司 | The LP blades ceramic roller of automotive high intensity plate heating furnace |
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| CN108220582B (en) | 2022-12-06 |
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