CN205995511U - Compression roller alloy roller set - Google Patents
Compression roller alloy roller set Download PDFInfo
- Publication number
- CN205995511U CN205995511U CN201620442735.4U CN201620442735U CN205995511U CN 205995511 U CN205995511 U CN 205995511U CN 201620442735 U CN201620442735 U CN 201620442735U CN 205995511 U CN205995511 U CN 205995511U
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- internal layer
- roller
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Abstract
A kind of compression roller alloy roller set, including outer layer (2) and internal layer (1), it is characterized in that, outer layer (2) and internal layer (1) are for forming through heat treatment after centrifugal composite casting, outer layer (2) material is the abrasion-resistant stee containing Cr, Ni, Mo, V, W, Nb alloy, and internal layer (1) material is high tenacity medium carbon low alloy steel.Ectonexine realizes metallurgical binding.Further, outer layer (2) is the organized layer of " carbon Ma Aoti ", and internal layer (1) is the organized layer of compact grained " pearl iron body ".The utility model simple structure, Wear-resistant, high-temperature resistant performance are good, service cycle is up to more than 20000 hours.
Description
Technical field
The utility model is related to compression roller alloy roller set.
Background technology
The used extruding roll sleeve of cement industry all solves wear-resisting asking using built-up welding high carbon and chromium Hardmetal materials method
Topic, i.e. core carry out build-up wear-resistant using phosphorus content in the middle carbon and low-alloy structural steel of 0.3-0.5% after conditioning treatment
Layer, build-up wear-resistant thickness degree about 20mm or so, hardness HRC56-62, internal layer hardness HB180-250, tensile strength 700Mpa,
Ballistic work 20J/cm2, has direct relation using overall life and build-up wear-resistant layer material, there is problems with：1st, built-up welding is resistance to
Mill layer is thin, and metallographic structure is chaotic.The metallographic structure of overlay cladding is mixing groups such as " carbide+martensite+sorbite+austenite "
Knit, the performance contribution of alloying element is unable to reach optimum.2nd, weld crack is left after welding, the phenomenons such as flake-off block easily occur.
3rd, wear-resisting sexual deviation must frequently carry out online Bead weld repair.4th, online welding cost is high, a large amount of weld cracks, impact occurs
Service life.5th, must stop production after Technology of Welded Roller set generally uses 8000 hours and be repaired, impact is normal to be produced.
Content of the invention
The technical problems to be solved in the utility model is a kind of simple structure of offer, Wear-resistant, high-temperature resistant performance is good, it is all to operate
Compression roller alloy roller set of the phase up to more than 20000 hours.
To achieve these goals, technical solution adopted in the utility model：
A kind of compression roller alloy roller set, including outer layer (2) and internal layer (1), it is characterised in that outer layer (2) and internal layer (1) are
Form through heat treatment after centrifugal composite casting, outer layer (2) material is the abrasion-resistant stee containing Cr, Ni, Mo, V, W, Nb alloy, internal layer
(1) material is high tenacity medium carbon low alloy steel.Ectonexine realizes metallurgical binding.Further, outer layer (2) is " carbide+martensite
The organized layer of+a small amount of retained austenite ", internal layer (1) are the organized layer of compact grained " pearlite+ferrite ".
The utility model 1, simple structure.2nd, core is that internal layer (1) toughness is fine, and internal layer (1) matrix is " ferrite
+ fine pearlite ".3rd, outer layer (2) has higher wearability, outer layer (2) matrix for " alloy carbide (20-30%)+
Martensite+retained austenite (5% or so) ", in centrifugal process, due to the effect of centrifugal force, outer tissue is fine and close for the material
And carbide particle is tiny, disperse (Mo, V, W, Nb carbide is point-like) makes it have very high wearability.4th, have certain
Impact resistance, due in the outer layer material contain a certain amount of Ni alloying element, after special thermal treatment, matrix have relatively
Good toughness, while also leaving about 5% or so " stable residual austenite ", significantly improves the impact resistance of roller set.5th, close
Patterned casting realized by golden roller set, removes built-up welding from and nips decorative pattern, and due in centrifugal casting process knurling section in most external, cold
But speed is fast, and its tissue is more fine and close, and carbide is more tiny so as to possess more high-wearing feature and crack resistance.6th, technology ginseng
Number：Outer layer hardness >=HRC60, tensile strength 750MPa, ballistic work 3.5J/cm2, internal layer hardness HB220-250, the contraction percentage of area
36%th, ballistic work (U-shaped breach) 20.5J/cm2.7th, energy-efficient, to wear and tear little, service cycle is long, up to more than 20000 hours,
Obvious energy conservation, energy-conservation per ton reach more than 1kwh, and material has nipped Tai Shigao, can make full use of " peak valley is put down " principle, significantly
Degree reduces specific energy consumption cost.8th, wear-resisting thickness, reproducing property are good, more than wearing layer 50mm, can make full use of production gap, real
The online decorative pattern that now do not stop production is reproduced, and so that roller is covered all the time at concert pitch.
Description of the drawings
Fig. 1 is surface texture front view of the present utility model.
Specific embodiment
A kind of compression roller alloy roller set, using centrifugal composite casting, outer layer (2) be containing alloys such as Cr, Ni, Mo, V, W, Nb
Abrasion-resistant stee, core is internal layer (1) for high tenacity medium carbon low alloy steel, and ectonexine realizes metallurgical binding, after heat treatment outer layer
The stabilizing tissue of " carbide+martensite+a small amount of retained austenite " is obtained, internal layer obtains compact grained " pearlite+ferrite "
Stabilizing tissue.
The utility model 1, simple structure.2nd, core is that internal layer (1) toughness is fine, and internal layer (1) matrix is " ferrite
+ fine pearlite ".3rd, outer layer (2) has higher wearability, outer layer (2) matrix for " alloy carbide (20-30%)+
Martensite+retained austenite (5% or so) ", in centrifugal process, due to the effect of centrifugal force, outer tissue is fine and close for the material
And carbide particle is tiny, disperse (Mo, V, W, Nb carbide is point-like) makes it have very high wearability.4th, have certain
Impact resistance, due in the outer layer material contain a certain amount of Ni alloying element, after special thermal treatment, matrix have relatively
Good toughness, while also leaving about 5% or so " stable residual austenite ", significantly improves the impact resistance of roller set.5th, close
Patterned casting realized by golden roller set, removes built-up welding from and nips decorative pattern, and due in centrifugal casting process knurling section in most external, cold
But speed is fast, and its tissue is more fine and close, and carbide is more tiny so as to possess more high-wearing feature and crack resistance.6th, technology ginseng
Number：Outer layer hardness >=HRC60, tensile strength 750MPa, ballistic work 3.5J/cm2, internal layer hardness HB220-250, the contraction percentage of area
36%th, ballistic work (U-shaped breach) 20.5J/cm2.7th, energy-efficient, to wear and tear little, service cycle is long, up to more than 20000 hours,
Obvious energy conservation, energy-conservation per ton reach more than 1kwh, and material has nipped Tai Shigao, can make full use of " peak valley is put down " principle, significantly
Degree reduces specific energy consumption cost.8th, wear-resisting thickness, reproducing property are good, more than wearing layer 50mm, can make full use of production gap, real
The online decorative pattern that now do not stop production is reproduced, and so that roller is covered all the time at concert pitch.
Call for convenience, we are pearlite+ferrite：Referred to as pearl iron body, we are carbide+martensite+few
Amount retained austenite abbreviation carbon Ma Aoti.
Claims (1)
1. a kind of compression roller alloy roller set, including outer layer（2）And internal layer（1）, it is characterised in that outer layer（2）And internal layer（1）Be from
Form through heat treatment after heart composite casting, outer layer（2）Material is the abrasion-resistant stee containing Cr, Ni, Mo, V, W, Nb alloy, internal layer（1）
Material is high tenacity medium carbon low alloy steel；Described outer layer（2）For the organized layer of " carbon Ma Aoti ", internal layer（1）For compact grained
The organized layer of " pearl iron body ".
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620442735.4U CN205995511U (en) | 2016-05-13 | 2016-05-13 | Compression roller alloy roller set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620442735.4U CN205995511U (en) | 2016-05-13 | 2016-05-13 | Compression roller alloy roller set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205995511U true CN205995511U (en) | 2017-03-08 |
Family
ID=58204651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620442735.4U Expired - Fee Related CN205995511U (en) | 2016-05-13 | 2016-05-13 | Compression roller alloy roller set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205995511U (en) |
-
2016
- 2016-05-13 CN CN201620442735.4U patent/CN205995511U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170308 |