CN109909011A - A kind of roller mill column head type alloy block structure and production method - Google Patents
A kind of roller mill column head type alloy block structure and production method Download PDFInfo
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- CN109909011A CN109909011A CN201910184190.XA CN201910184190A CN109909011A CN 109909011 A CN109909011 A CN 109909011A CN 201910184190 A CN201910184190 A CN 201910184190A CN 109909011 A CN109909011 A CN 109909011A
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- alloy
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- column head
- steel
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- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 56
- 239000000956 alloy Substances 0.000 title claims abstract description 56
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 10
- 229910000851 Alloy steel Inorganic materials 0.000 claims abstract description 32
- 238000012545 processing Methods 0.000 claims abstract description 7
- 238000005245 sintering Methods 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims description 14
- 238000003466 welding Methods 0.000 claims description 12
- 238000003754 machining Methods 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 238000005476 soldering Methods 0.000 claims description 4
- JPNWDVUTVSTKMV-UHFFFAOYSA-N cobalt tungsten Chemical compound [Co].[W] JPNWDVUTVSTKMV-UHFFFAOYSA-N 0.000 claims description 3
- 238000000227 grinding Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 238000004321 preservation Methods 0.000 claims description 3
- 238000003672 processing method Methods 0.000 claims description 3
- 238000010791 quenching Methods 0.000 claims description 3
- 230000000171 quenching effect Effects 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims 1
- 239000010959 steel Substances 0.000 claims 1
- 238000012797 qualification Methods 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
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- Crushing And Grinding (AREA)
Abstract
The invention discloses a kind of roller mill column head type alloy block structure, the steel alloy cylinders of hard alloy blocks and lower part including top；The hard alloy blocks can be divided into anti-wear component and limit part, and limit part bottom surface offers blind round hole；The steel alloy cylinder is matched with blind round hole, is weldingly fixed in blind round hole；The steel alloy cylinder is made of alloy steel bar, and end face offers internal thread hole, and threaded hole bottom is processed as through-hole.The production method that a kind of roller mill column head type alloy block structure is also disclosed in the present invention, hard alloy blocks and steel alloy cylinder are made respectively, the two is applied in combination again, processing cost declines to a great extent, and improves sintering cemented carbide qualification rate and is more easier when Roller of High roller side etc. inlays position dismounting, more renews column head type hard alloy blocks.
Description
Technical field
The present invention relates to high-pressure roller mill fields, and in particular to a kind of roller mill column head type alloy block structure and production side
Method.
Background technique
The easy-abrasion parts such as existing Roller of High roller side are using built-up welding, welding wearing plate, tungsten carbide button
The frame modes such as block.Wherein built-up welding, inlay the structure of wearing plate, per after a period of time, it is necessary to which Bead weld repair is primary again, shadow
Equipment operation rate is rung, and maintenance cost is higher；Tungsten carbide button's block structure on the components such as high-pressure roller mill roller side, can make roller
The components service life such as side, which reaches, leads to stud roll surface same service life, existing hard alloy blocks majority similar to dovetail trench structure
Cross it is integral sintered be made, sinter molding is extremely difficult, and technique requires high, and sintering qualification rate is low, and uses in high-pressure roller mill
Cheng Zhong, after hard alloy blocks are by abnormal damage, the fragment dismounting for being retained in roller side position is extremely difficult, cannot achieve
The new hard alloy blocks of timely quick-replaceable, influence equipment operation rate, and maintenance cost is high.
Summary of the invention
To solve the above problems, the present invention provides a kind of roller mill column head type alloy block structure and production method, knot
Structure is simple, easy to make, and is easy to remove and renew.
The specific technical proposal of the invention is: a kind of roller mill column head type alloy block structure, the hard including top is closed
The steel alloy cylinder of gold bullion and lower part；The hard alloy blocks can be divided into anti-wear component and limit part, limit part bottom surface
Offer blind round hole；The steel alloy cylinder is matched with blind round hole, is weldingly fixed in blind round hole.
Further, the anti-wear component and limit part are integrated rectangular block architecture, the cross section of limit part
Rectangle is less than anti-wear component cross section rectangle.
Further, the steel alloy cylinder is made of alloy steel bar, and end face offers internal thread hole, threaded hole bottom
Portion is processed as through-hole.
Further, one end that the steel alloy cylinder offers internal thread hole is fixed in blind round hole.
A kind of roller mill production method of column head type alloy block structure, steps are as follows:
1) hard alloy blocks are made, using tungsten-cobalt powder by sintering method, high-anti-friction hard alloy block are made, in hard
It closes and reserves blind round hole on the downside of block, be worked into required size by grinding processing method；
2) steel alloy cylinder is made, by the bar of alloy steel material by quenched, quenching treatment, reaches its hardness
RC40-45, and there is good toughness, required cylindrical shape is processed into using machining mode and in end face machining internal thread
Through-hole is processed into hole, threaded hole bottom；
3) it by blind round hole on the downside of steel alloy cylinder insertion hard alloy blocks, is welded using copper base high temperature soldering processes
It is connected together, welding temperature is controlled at 950 DEG C -1050 DEG C；
4) destressing processing is carried out after the completion of welding immediately, column head type hard alloy blocks are put into heating furnace and are heated to
350 DEG C -400 DEG C of heat preservations 10-12 hours, take out air-cooled after 150 DEG C -180 DEG C are cooled in furnace, produced with eliminating in welding process
Raw residual stress.
Compared with prior art, this novel column head type hard alloy blocks structure and preparation method thereof of the invention, be
Split production method is taken at different role position and difficult forming, is finally welded together using copper base high temperature soldering processes, is made
This column head type hard alloy blocks opposite sex part processing and manufacturing is more easier, and processing cost declines to a great extent, and improves sintering cemented carbide
Qualification rate and Roller of High roller side etc. inlay position remove, more renew column head type hard alloy blocks when be more easier.
In high-pressure roller mill use process, when the damage of hard alloy blocks exception stress, cylindrical end is screwed into screw rod
Face threaded hole is easy to take out alloy steel cylinder from the matrix for inlay position, is replaced with new column cap hard alloy blocks i.e.
It can.
Detailed description of the invention
Fig. 1 is the sectional view of hard alloy blocks in the present invention；
Fig. 2 is the top view of hard alloy blocks in the present invention；
Fig. 3 is the sectional view of medium alloy steel cylinder of the present invention；
Fig. 4 is the structural schematic diagram of column head type alloy block structure of the present invention；
Fig. 5 is the top view of column head type alloy block structure of the present invention；
In figure: 1, hard alloy blocks, 1-1, anti-wear component, 1-2, limit part, 2, blind round hole, 3, steel alloy cylinder,
3-1, internal thread hole, 3-2, through-hole.
Specific embodiment
With reference to the accompanying drawings of the specification, further detailed description is done to the present invention.
As shown in Fig. 1 to Fig. 5, a kind of roller mill column head type alloy block structure, the hard alloy blocks 1 including top are under
The steel alloy cylinder 3 in portion.Hard alloy blocks 1 can be divided into anti-wear component 1-1 and limit part 1-2, and the bottom surface limit part 1-2 opens up
There is blind round hole 2.Steel alloy cylinder 3 is made of alloy steel bar, and end face offers internal thread hole 3-1, the processing of threaded hole bottom
For through-hole 3-2；Steel alloy cylinder 3 is matched with blind round hole 2, offer internal thread hole 3-1 one end be weldingly fixed on it is round blind
In hole 2.
Above-mentioned anti-wear component 1-1 and limit part 1-2 is integrated rectangular block architecture, the cross section of limit part 1-2
Rectangle is less than the cross section anti-wear component 1-1 rectangle, is convenient for being put into hard alloy blocks in the roll surface groove of roller mill roller in this way.
A kind of roller mill production method of column head type alloy block structure, steps are as follows:
1) hard alloy blocks 1 are made, using tungsten-cobalt powder by sintering method, high-anti-friction hard alloy block are made, hard
Blind round hole 2 is reserved on the downside of matter alloy block 1, is worked into required size by grinding processing method.
2) steel alloy cylinder 3 is made, by the bar of alloy steel material by quenched, quenching treatment, reaches its hardness
RC40-45, and there is good toughness, required cylindrical shape is processed into using machining mode and in end face machining internal thread hole
Through-hole 3-2 is processed into 3-1, threaded hole bottom.
3) steel alloy cylinder 3 is inserted on the downside of hard alloy blocks in blind round hole 2, using copper base high temperature soldering processes by its
Weld together, welding temperature is controlled at 950 DEG C -1050 DEG C.
4) destressing processing is carried out after the completion of welding immediately, column head type hard alloy blocks are put into heating furnace and are heated to
350 DEG C -400 DEG C of heat preservations 10-12 hours, take out air-cooled after 150 DEG C -180 DEG C are cooled in furnace, produced with eliminating in welding process
Raw residual stress.
In use, the column head type alloy block structure combined is put into the groove on roller mill roller roll surface, in high pressure
In roller mill normal use, the structure of this column cap hard alloy blocks for being embedded in the positions such as Roller of High roller side is not necessarily to
Maintenance, simultaneously because 3 end face of steel alloy cylinder is machined with internal thread hole 3-1, when top hard alloy blocks 1 are damaged by abnormal external force
Bad when, is screwed into cylinder end face internal thread hole 3-1 with screw rod and is easy to take steel alloy cylinder 3 from the matrix for inlay position
Out, being replaced with new column cap hard alloy blocks roller mill can continue to use.Column head type alloy block structure in the present invention, structure
Simply, easy to make, replacement convenience is removed, can reach reduce plant maintenance amount in actual use, improve equipment operation rate
Purpose.
The above-mentioned description to embodiment is for the ease of those skilled in the art it will be appreciated that and using this
Case technology, person skilled in the art obviously can make various modifications to these examples easily, and described herein one
As principle be applied in other embodiments without having to go through creative labor.Therefore, this case is not limited to above embodiments, ability
According to the disclosure of this case, the improvement and modification made for this case all should be in the protection scopes of this case by the technical staff in domain.
Claims (5)
1. a kind of roller mill column head type alloy block structure, characterized in that the conjunction of hard alloy blocks (1) and lower part including top
Golden steel cylinder (3)；The hard alloy blocks (1) can be divided into anti-wear component (1-1) and limit part (1-2), limit part (1-
2) bottom surface offers blind round hole (2)；The steel alloy cylinder (3) is matched with blind round hole (2), is weldingly fixed on round blind
In hole (2).
2. a kind of roller mill according to claim 1 column head type alloy block structure, characterized in that the anti-wear component
(1-1) and limit part (1-2) are integrated rectangular block architectures, and the cross section rectangle of limit part (1-2) is less than anti-wear component
The cross section (1-1) rectangle.
3. a kind of roller mill according to claim 1 column head type alloy block structure, characterized in that the steel alloy circle
Column (3) is made of alloy steel bar, and end face offers internal thread hole (3-1), and threaded hole bottom is processed as through-hole (3-2).
4. a kind of roller mill according to claim 3 column head type alloy block structure, characterized in that the steel alloy circle
One end that column (3) offers internal thread hole (3-1) is fixed in blind round hole (2).
5. a kind of roller mill production method of column head type alloy block structure, characterized in that steps are as follows:
1) hard alloy blocks (1) is made, using tungsten-cobalt powder by sintering method, high-anti-friction hard alloy block is made, in hard
It closes and reserves blind round hole (2) on the downside of block, be worked into required size by grinding processing method；
2) steel alloy cylinder (3) are made, by the bar of alloy steel material by quenched, quenching treatment, its hardness is made to reach RC40-
45, and there is good toughness, required cylindrical shape is processed into using machining mode and in end face machining internal thread hole (3-
1), through-hole (3-2) is processed into threaded hole bottom；
3) steel alloy cylinder (3) are inserted on the downside of hard alloy blocks (1) in blind round hole (2), using copper base high temperature soldering processes
It is welded to together, welding temperature is controlled at 950 DEG C -1050 DEG C；
4) welding after the completion of immediately carry out destressing processing, column head type hard alloy blocks are put into heating furnace be heated to 350 DEG C-
400 DEG C heat preservation 10-12 hours, taken out after 150 DEG C -180 DEG C are cooled in furnace it is air-cooled, with eliminate generated in welding process it is residual
Residue stress.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910184190.XA CN109909011A (en) | 2019-03-12 | 2019-03-12 | A kind of roller mill column head type alloy block structure and production method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910184190.XA CN109909011A (en) | 2019-03-12 | 2019-03-12 | A kind of roller mill column head type alloy block structure and production method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109909011A true CN109909011A (en) | 2019-06-21 |
Family
ID=66964323
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910184190.XA Pending CN109909011A (en) | 2019-03-12 | 2019-03-12 | A kind of roller mill column head type alloy block structure and production method |
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| Country | Link |
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| CN (1) | CN109909011A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112774799A (en) * | 2020-12-17 | 2021-05-11 | 株洲硬质合金集团有限公司 | Hard alloy composite edge tooth for high-pressure roller mill and preparation method thereof |
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|---|---|---|---|---|
| US2857111A (en) * | 1955-01-21 | 1958-10-21 | Unipulver Ltd | Rotor blades and blade mounting means for grinding mills |
| US5860609A (en) * | 1996-09-19 | 1999-01-19 | Deutz Aktiengesellschaft | Wear-resistant surface armoring for the rolls of high-pressure roll presses for the pressure disintegration of granular material |
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| WO2018007309A1 (en) * | 2016-07-05 | 2018-01-11 | Thyssenkrupp Industrial Solutions Ag | Grinding roller having an edge protection device |
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