CN110102983A - A kind of high temperature resistant dry type overhang roll and its preparation process - Google Patents
A kind of high temperature resistant dry type overhang roll and its preparation process Download PDFInfo
- Publication number
- CN110102983A CN110102983A CN201910473834.7A CN201910473834A CN110102983A CN 110102983 A CN110102983 A CN 110102983A CN 201910473834 A CN201910473834 A CN 201910473834A CN 110102983 A CN110102983 A CN 110102983A
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- roll body
- high temperature
- temperature resistant
- hollow roll
- dry type
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- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 238000009413 insulation Methods 0.000 claims abstract description 29
- 238000003466 welding Methods 0.000 claims abstract description 23
- 238000010079 rubber tapping Methods 0.000 claims abstract description 10
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 claims abstract description 6
- 239000010959 steel Substances 0.000 claims abstract description 6
- 238000003825 pressing Methods 0.000 claims description 17
- 239000010425 asbestos Substances 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 8
- 229910052895 riebeckite Inorganic materials 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 5
- 238000012360 testing method Methods 0.000 claims description 4
- 230000007547 defect Effects 0.000 claims description 3
- 238000013517 stratification Methods 0.000 claims description 3
- 239000003607 modifier Substances 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 9
- 238000001816 cooling Methods 0.000 abstract description 6
- 238000010438 heat treatment Methods 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 229910000754 Wrought iron Inorganic materials 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000009429 distress Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
- F27B9/38—Arrangements of devices for charging
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
- F27B9/39—Arrangements of devices for discharging
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
- F27B9/38—Arrangements of devices for charging
- F27B2009/382—Charging
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
- F27B9/38—Arrangements of devices for charging
- F27B2009/384—Discharging
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
- Rolls And Other Rotary Bodies (AREA)
Abstract
The present invention relates to a kind of high temperature resistant dry type overhang rolls, including shaft and hollow roll assembly, shaft includes main tapping, the shaft shoulder and connecting pin, one end of main tapping is equipped with the shaft shoulder, the other end is equipped with connecting pin, hollow roll assembly includes hollow roll body, baffle and heat insulation structural, one end of hollow roll body is equipped with connecting hole A, the other end is equipped with connecting hole B, the shaft shoulder protrudes into connecting hole A, and integrally welded structure, sealing welding is connected to baffle in connecting hole B, the inside of hollow roll body is fixed at intervals with multiple groups heat insulation structural, the roller-way for conveying steel pipe is additionally provided on the appearance wall of the one end of hollow roll body far from the shaft shoulder；Also disclose its preparation process.The present invention realizes overhang roll and does not need water cooling in the high temperature environment and can operate normally, avoid the unintended fracture of overhang roll, extend the service life of cantilever roller, reduce maintenance cost, reduce energy loss, it can guarantee better furnace atmosphere, can apply in the demanding step-by-step heat treatment furnace of precision performance.
Description
Technical field
The present invention relates to conveying technologies field, especially a kind of high temperature resistant dry types such as stepping furnace disengaging furnace steel pipe, rod iron are outstanding
Arm roller and its preparation process.
Background technique
As user is higher and higher to material performance requirement, the continuous development of heat treatment, the extensive use of stepping furnace, to outstanding
High temperature resistant, wearability, high temperature following table surface state, service life, energy conservation of wall roller etc. require higher and higher.
Traditional overhang roll is welded to form by three parts, is welded to connect, roller internal water cooling.It breaks down if supplied water,
Cause commissure to be easy to produce cracking, influences the service life of overhang roll.In addition, furnace rolls leak easy to wear, does not only maintain into
This height, and furnace rolls will affect furnace atmosphere using water cooling, breakage, leak, influence the surface of product and the performance of inherence, water
Heat can be taken away in cold process, cause energy loss.
Summary of the invention
The purpose of the present invention is to overcome the shortcomings of the existing technology, provides a kind of high temperature resistant dry type overhang roll and its preparation work
Skill.
The purpose of the present invention is achieved through the following technical solutions: a kind of high temperature resistant dry type overhang roll, including shaft and sky
Heart roll assembly, the shaft include main tapping, the shaft shoulder and connecting pin, and one end of the main tapping is equipped with the shaft shoulder, and the other end is equipped with
Connecting pin, the hollow roll assembly include hollow roll body, baffle and heat insulation structural, and one end of the hollow roll body is equipped with connecting hole
A, the other end are equipped with connecting hole B, and the shaft shoulder protrudes into connecting hole A, and integrally welded structure, sealing in the connecting hole B
Be welded with baffle, the inside of the hollow roll body is fixed at intervals with multiple groups heat insulation structural, the hollow roll body far from the shaft shoulder one
The roller-way for conveying steel pipe is additionally provided on the appearance wall at end.
Further, the heat insulation structural includes backing plate, connecting column, tapetum fibrosum and pressing plate, the backing plate, the tapetum fibrosum
And the pressing plate is disk structure, the edge of the backing plate is fixedly connected with the inner wall of hollow roll body, the backing plate
Same side is equipped with multiple connecting columns, and the connecting column passes through tapetum fibrosum, and connect with pressing plate, and the pressing plate is pressed abd fixed on
On the side of tapetum fibrosum.
Further, the edge of the backing plate is equipped with flanging, which is bonded with the inner wall of hollow roll body, and welds solid
It is fixed.
Further, the hollow parts of the hollow roll body are also filled with asbestos filled layer.
Further, the shaft is made of 15CrMo material, the hollow roll body and the baffle by
ZG40Cr25Ni20Si2 material is made.
A kind of preparation process of high temperature resistant dry type overhang roll, comprising the following steps:
S1, production shaft: according to drawing size, shaft is processed；
S2, the hollow roll body of production: according to drawing size, hollow roll body is processed with numerically-controlled machine tool；
S3, assembling heat insulation structural；
S4, welding: the connecting hole A of hollow roll body is socketed on the shaft shoulder, and hollow roll body and the shaft shoulder is integrally welded；
S5, rear assembling: asbestos filled layer is filled into hollow roll body, and heat insulation structural is successively weldingly fixed on hollow roll
In vivo, finally, guard seal is welded at connecting hole B, high temperature resistant dry type cantilever roller stock part is obtained；
S6, finishing: polishing the position while welding of high temperature resistant dry type cantilever roller stock part, polished, keep its surface smooth,
Obtain high temperature resistant dry type overhang roll.
Further, in step S3, the concrete operation step for assembling heat insulation structural is: according to the internal diameter of hollow roll body
And connecting column is welded on backing plate by the arrangement demand of heat insulation structural, production multiple groups backing plate, connecting column, tapetum fibrosum and pressing plate,
Connecting column is passed through into corresponding tapetum fibrosum, and is fixed with pressing plate, the heat insulation structural of multiple and different sizes is obtained.
Further, in step S4, when welding, is preheating to 50-100 DEG C and carries out continuous stratification welding using MG600 welding rod.
Further, after step S6, further include the steps that defect detecting test.
Further, in step S1, modifier treatment is carried out to shaft, makes its hardness HR between 217~255.
The invention has the following advantages that
1, main body of the present invention is welded by hollow roll body and shaft two parts, heat-insulated using double partitions in hollow roll body,
Other hollow parts fill asbestos insulation, prevent thermal loss, while main shaft temperature being made to be maintained at 80 DEG C hereinafter, having ensured main shaft
Service life.
2, the present invention realizes overhang roll and does not need water cooling in the high temperature environment and can operate normally, and avoids overhang roll
Unintended fracture, extend the service life of cantilever roller, reduce maintenance cost, reduce energy loss, can guarantee
Better furnace atmosphere can apply in the demanding step-by-step heat treatment furnace of precision performance.
3, main shaft 15CrMo uses hardening and tempering process, hardness HB217-255, and hollow overhang roll uses ZG40Cr25Ni20Si2
Heat-resisting material can apply 1200 DEG C of maximum temperature of working environment by solution treatment.
4, it when welding the shaft shoulder of shaft and hollow roll body, first preheats, and using layering welding, to guarantee the strong of weld seam
Degree is conducive to the service life for improving high temperature resistant dry type overhang roll.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the schematic diagram of heat insulation structural of the invention；
Fig. 3 is the structural schematic diagram of hollow roll body of the invention；
In figure: 1- shaft, 1a- main tapping, the 1b- shaft shoulder, the connecting pin 1c-, the hollow roll assembly of 2-, the hollow roll body of 2a-, 2a1-
Connecting hole A, 2a2- connecting hole B, 2b- baffle, 2c- heat insulation structural, 2c1- backing plate, 2c2- connecting column, 2c3- tapetum fibrosum, 2c4- pressure
Plate, 2d- asbestos filled layer.
Specific embodiment
The present invention will be further described with reference to the accompanying drawing, but protection scope of the present invention is not limited to following institute
It states.
As shown in figures 1 and 3, a kind of high temperature resistant dry type overhang roll, including shaft 1 and hollow roll assembly 2, the shaft 1
Including main tapping 1a, shaft shoulder 1b and connecting pin 1c, one end of the main tapping 1a is equipped with shaft shoulder 1b, and the other end is equipped with connecting pin
1c, the hollow roll assembly 2 include that hollow roll body 2a, baffle 2b and heat insulation structural 2c, one end of the hollow roll body 2a are equipped with
Connecting hole A2a1, the other end are equipped with connecting hole B2a2, and the shaft shoulder 1b is protruded into connecting hole A2a1, and integrally welded structure,
Sealing welding is connected to baffle 2b in the connecting hole B2a2, and the inside of the hollow roll body 2a is fixed at intervals with multiple groups heat insulation structural
2c is additionally provided with the roller-way for conveying steel pipe on the appearance wall of the described hollow one end of roll body 2a far from shaft shoulder 1b.
Further, as shown in Fig. 2, the heat insulation structural 2c includes backing plate 2c1, connecting column 2c2, tapetum fibrosum 2c3 and pressure
Plate 2c4, the backing plate 2c1, the tapetum fibrosum 2c3 and the pressing plate 2c4 are disk structure, the side of the backing plate 2c1
Edge is fixedly connected with the inner wall of hollow roll body 2a, and the same side of the backing plate 2c1 is equipped with multiple connecting column 2c2, the company
Column 2c2 is met across tapetum fibrosum 2c3, and is connect with pressing plate 2c4, the pressing plate 2c4 is pressed abd fixed on the side of tapetum fibrosum 2c3.
Further, as shown in Fig. 2, the edge of the backing plate 2c1 is equipped with flanging, the inner wall of the flanging and hollow roll body 2a
Fitting, and be welded and fixed.
Further, as shown in Figure 1, the hollow parts of the hollow roll body 2a are also filled with asbestos filled layer 2d, into one
Step promotes heat insulation, so that the outside transmitting that the heat of the hollow roll assembly 2 in furnace is as few as possible.
Further, the shaft 1 is made of 15CrMo material, the hollow roll body 2a and the baffle 2b by
ZG40Cr25Ni20Si2 material is made.
A kind of preparation process of high temperature resistant dry type overhang roll, comprising the following steps:
S1, production shaft 1: according to drawing size, processing shaft 1, processes shaft shoulder 1b, the other end in one end of main tapping 1a
Connecting pin 1c is processed, wherein the surface of connecting pin 1c is provided with keyway, convenient for connecting with external impetus end, adjusts to shaft 1
Matter processing, makes its hardness HR between 217~255；
S2, the hollow roll body 2a of production: according to drawing size, hollow roll body 2, the table of hollow roll body 2 are processed with numerically-controlled machine tool
Face and interior hollow section are processed according to drawing requirement；
S3, assembling heat insulation structural 2c, according to the internal diameter of hollow roll body 2a and the arrangement demand of heat insulation structural 2c, system
Make multiple groups backing plate 2c1, connecting column 2c2, tapetum fibrosum 2c3 and pressing plate 2c4, connecting column 2c2 is welded on backing plate 2c1, will connect
Column 2c2 passes through corresponding tapetum fibrosum 2c3, and is fixed with pressing plate 2c4, obtains the heat insulation structural 2c of multiple and different sizes；
S4, welding: the connecting hole A2a1 of hollow roll body 2a is socketed on shaft shoulder 1b, and by hollow roll body 2a and shaft shoulder 1b
It is integrally welded, before welding, first hollow roll body 2a and shaft shoulder 1b are preheated respectively, when welding, is preheating to 50-100 DEG C, uses
MG600 welding rod carries out continuous stratification welding；
S5, rear assembling: asbestos filled layer 2d is filled into hollow roll body 2a, and heat insulation structural 2c is successively weldingly fixed on
In hollow roll body 2a, finally, obtaining high temperature resistant dry type cantilever roller stock part by baffle 2b sealing welding at connecting hole B2a2；
S6, finishing: polishing the position while welding of high temperature resistant dry type cantilever roller stock part, polished, keep its surface smooth,
Obtain high temperature resistant dry type overhang roll.
More preferably, further include the steps that defect detecting test after completing processing.There cannot be the influences such as shrinkage cavity, burning into sand use
Any performance deficiency.And it manufactures and tests referring to steel-casting general technical specifications JB/T5000.6-1998 and JB/T6403-92
It receives.
It comes into operation 1 year after the present invention is improved, does not occur surface steel bonding, overhang roll fracture distress phenomenon, maintenance cost
It substantially reduces, and overhang roll does not use water cooling, not only reduces water supply cost, decrease water cooling bring energy loss.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (10)
1. a kind of high temperature resistant dry type overhang roll, it is characterised in that: including shaft (1) and hollow roll assembly (2), the shaft (1)
It is equipped with the shaft shoulder (1b) including main tapping (1a), the shaft shoulder (1b) and connecting pin (1c), one end of the main tapping (1a), the other end is set
Have connecting pin (1c), the hollow roll assembly (2) includes hollow roll body (2a), baffle (2b) and heat insulation structural (2c), the sky
One end of heart roll body (2a) is equipped with connecting hole A (2a1), and the other end is equipped with connecting hole B (2a2), and the shaft shoulder (1b) protrudes into connection
In hole A (2a1), and integrally welded structure, the interior sealing welding of the connecting hole B (2a2) are connected to baffle (2b), the hollow roll body
The inside of (2a) is fixed at intervals with multiple groups heat insulation structural (2c), the appearance of the one end of the hollow roll body (2a) far from the shaft shoulder (1b)
The roller-way for conveying steel pipe is additionally provided on wall.
2. a kind of high temperature resistant dry type overhang roll according to claim 1, it is characterised in that: the heat insulation structural (2c) includes
Backing plate (2c1), connecting column (2c2), tapetum fibrosum (2c3) and pressing plate (2c4), the backing plate (2c1), the tapetum fibrosum (2c3) with
And the pressing plate (2c4) is disk structure, the edge of the backing plate (2c1) and the fixed company of the inner wall of hollow roll body (2a)
It connects, the same side of the backing plate (2c1) is equipped with multiple connecting columns (2c2), and the connecting column (2c2) passes through tapetum fibrosum
(2c3), and connect with pressing plate (2c4), the pressing plate (2c4) is pressed abd fixed on the side of tapetum fibrosum (2c3).
3. a kind of high temperature resistant dry type overhang roll according to claim 2, it is characterised in that: the edge of the backing plate (2c1)
Equipped with flanging, which is bonded with the inner wall of hollow roll body (2a), and is welded and fixed.
4. a kind of high temperature resistant dry type overhang roll according to any one of claims 1 to 3, it is characterised in that: described hollow
The hollow parts of roll body (2a) are also filled with asbestos filled layer (2d).
5. a kind of high temperature resistant dry type overhang roll according to claim 4, it is characterised in that: the shaft (1) is by 15CrMo
Material is made, and the hollow roll body (2a) and the baffle (2b) are made of ZG40Cr25Ni20Si2 material.
6. a kind of preparation process of high temperature resistant dry type overhang roll, it is characterised in that: the following steps are included:
S1, production shaft (1): it according to drawing size, processes shaft (1)；
S2, the hollow roll body (2a) of production: according to drawing size, hollow roll body (2) is processed with numerically-controlled machine tool；
S3, assembling heat insulation structural (2c)；
S4, welding: the connecting hole A (2a1) of hollow roll body (2a) is socketed on the shaft shoulder (1b), and by hollow roll body (2a) and axis
Shoulder (1b) is integrally welded；
S5, rear assembling: asbestos filled layer (2d) is filled into hollow roll body (2a), and heat insulation structural (2c) is successively welded and fixed
In hollow roll body (2a), finally, obtaining high temperature resistant dry type overhang roll by baffle (2b) sealing welding at connecting hole B (2a2)
Blank；
S6, finishing: the position while welding of high temperature resistant dry type cantilever roller stock part is polished, is polished, keeps its surface smooth, obtains
High temperature resistant dry type overhang roll.
7. a kind of preparation process of high temperature resistant dry type overhang roll according to claim 6, it is characterised in that: in step S3,
The concrete operation step of assembling heat insulation structural (2c) is: according to the internal diameter of hollow roll body (2a) and heat insulation structural (2c)
Arrangement demand, production multiple groups backing plate (2c1), connecting column (2c2), tapetum fibrosum (2c3) and pressing plate (2c4) weld connecting column (2c2)
It connects on backing plate (2c1), connecting column (2c2) is passed through into corresponding tapetum fibrosum (2c3), and be fixed with pressing plate (2c4), obtained
The heat insulation structural (2c) of multiple and different sizes.
8. a kind of preparation process of high temperature resistant dry type overhang roll according to claim 6, it is characterised in that: in step S4,
When welding, it is preheating to 50-100 DEG C, continuous stratification welding is carried out using MG600 welding rod.
9. a kind of preparation process of high temperature resistant dry type overhang roll according to claim 6, it is characterised in that: after step S6,
Further include the steps that defect detecting test.
10. a kind of preparation process of high temperature resistant dry type overhang roll according to claim 6, it is characterised in that: in step S1,
Modifier treatment is carried out to shaft (1), makes its hardness HR between 217~255.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910473834.7A CN110102983B (en) | 2019-06-01 | 2019-06-01 | High-temperature-resistant dry cantilever roller and preparation process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910473834.7A CN110102983B (en) | 2019-06-01 | 2019-06-01 | High-temperature-resistant dry cantilever roller and preparation process thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110102983A true CN110102983A (en) | 2019-08-09 |
| CN110102983B CN110102983B (en) | 2023-12-22 |
Family
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| CN201910473834.7A Active CN110102983B (en) | 2019-06-01 | 2019-06-01 | High-temperature-resistant dry cantilever roller and preparation process thereof |
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| CN103722483A (en) * | 2014-01-07 | 2014-04-16 | 上海通用轴承有限公司 | Nylon super-precision guiding roller and manufacturing method thereof |
| CN204509408U (en) * | 2015-03-18 | 2015-07-29 | 江苏南山冶金机械制造有限公司 | A kind of novel input and output material furnace roller |
| CN105773084A (en) * | 2016-06-03 | 2016-07-20 | 江苏南山冶金机械制造有限公司 | Pitted surface roller machining technology |
| JP2018070418A (en) * | 2016-10-31 | 2018-05-10 | 日本電気硝子株式会社 | Roller production method |
| CN108130492A (en) * | 2017-12-03 | 2018-06-08 | 江苏长友特钢机械有限公司 | Overhang roll and its manufacturing method |
| CN109321733A (en) * | 2018-11-21 | 2019-02-12 | 江苏华冶科技股份有限公司 | A kind of energy-saving furnace roller and preparation method thereof |
| CN109539797A (en) * | 2018-12-26 | 2019-03-29 | 北京京诚凤凰工业炉工程技术有限公司 | Non-water-cooled overhang roll in furnace |
| CN209954122U (en) * | 2019-06-01 | 2020-01-17 | 浙江明贺钢管有限公司 | High-temperature-resistant dry type cantilever roller |
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