CN1557579A - Bionic non-smooth wearable roller(III) - Google Patents
Bionic non-smooth wearable roller(III) Download PDFInfo
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- CN1557579A CN1557579A CNA2004100599353A CN200410059935A CN1557579A CN 1557579 A CN1557579 A CN 1557579A CN A2004100599353 A CNA2004100599353 A CN A2004100599353A CN 200410059935 A CN200410059935 A CN 200410059935A CN 1557579 A CN1557579 A CN 1557579A
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Abstract
The present invention belongs to the field of roller for rolling shaped section and aims at raising the wear resistance of roller surface. One kind of bionic un-smoothed roller with effectively prolonged service life is provided. The roller consists of roller coating of wear resisting material and roller core of tough material, and features the un-smoothed wavy surface in micron level. The waves on the surface of the roller have width of 50-200 micron, peak to trough height of 25-100 micron, and radial or axial distribution.
Description
The application is that application number is 02133029.8, and on September 25 2002 applying date, name is called dividing an application of " bionic, non-smooth and abrasion-resistant roller ".
Technical field
The invention belongs to the roll that rolling section bar is used.
Background technology
The roll that Steel Mill uses, in the process of rolling various wire rods, bar, Ribbon Steel, middle band steel, weldless steel tube, roll is in high temperature, high loading and high-speed condition and works, applying working condition condition harshness, require roll to have high obdurability, wear resistance, anti-surface irregularity and heat-resistant cracking, therefore, to making the material and the processing requirement height of roll.
At present, the roll that Steel Mill uses, great majority still use high alloy indefinite chill roll and alloy half steel roll, and these rolls mostly are to adopt commaterial production.To commaterial, two indexs that wear resistance and toughness are conflicting often, and roll requires the surface to have high wear resistance, core that good toughness will be arranged, still, they are again mutual restriction in the production.If the wear resistance height of roll, toughness are just obviously not enough, the roll breakage phenomenon appears in the production often; If good toughness, wear resistance are very poor again.Therefore, the roll that current material and technology are made, production efficiency is low, and the cost height is an example with certain Iron And Steel Company, and section roll per tour needed to change No. three rolls in eight hours, will be with 2 hours replacing rolls before high speed wire rod roller work every day.If can be improved three times the work-ing life of roll, then production efficiency can improve 25%, and production cost will reduce by 10%.
Summary of the invention
The objective of the invention is provides a kind of bionic, non-smooth and abrasion-resistant roller for improving the roller surface wear resisting property, improves the work-ing life of section roll effectively.
Bionic, non-smooth and abrasion-resistant roller of the present invention is by high-abrasive material roller skin and has better flexible core material and be composited, and it is characterized in that the roller leatherware has micron-sized convex closure or pit, ripple, lepidiod non-smooth surface.
The non-smooth morphology on roll top layer is the bionical new thought that puts forward by structure and friction behavioral study to organism material.By discovering of as dung beetle biological, extra large living shellfish, Squama Manis, bamboo wood etc. to some, the visbreaking wear-resisting functions that organism surface has, be that non-smooth morphology with its body surface has substantial connection, the non-smooth morphology of body surface is in the abrasive wear process, can make abrasive grain in the friction process, take place to roll and alleviated damage greatly its body surface, this is biological evolutionary optimization through 1 years, forms the feature that adapts with living environment gradually.Different organisms has different non-smooth morphology, and forms such as convex closure, pit, ripple, scale are arranged.Wear-resisting effect according to the non-smooth morphology of organism surface has proposed bionic, non-smooth and abrasion-resistant roller thus.The non-smooth morphology of roller surface according to the roll actual working conditions, can be forms such as convex closure, pit, ripple, scale.Non-smooth units body size is at micron-scale, and convex closure, pit type size range diameter be at the 50-200 micron, and convex closure height and pit depth be at the 25-100 micron, each hundred square millimeters distributing 200-5000 convex closure or pits; Ripple type size range ripple is wide at the 50-200 micron, and crest and trough height be at the 25-100 micron, and direction can be radially or axially; Palta type size range major axis is at the 50-200 micron, and minor axis overall dimension scope is at the 25-100 micron, and the scale height is at the 25-100 micron, each hundred square millimeters 200-5000 the scales that distributing.Non-smooth units volume morphing, the regularity of distribution and size play an important role to the wear resistance that improves the roll top layer, and non-smooth morphology reasonable in design can significantly improve the wear resistance of working position, roll top layer.
The described core of the present invention's roll adopts toughness materials such as soft steel or spheroidal graphite cast iron, described roller leather material is that high-carbon, the high-vanadium high-speed steel casting by following composition (Wt%) forms: C 1.0～4.5, V 1.0～15.0, Cr 2.0～5.0, and Mo 2.0～5.0, and W 2.0～5.0, the Fe surplus, wherein: Si≤0.35, Mn≤0.35, P≤0.03.This material is to contain on the basis of Cr, Mo, W at rapid steel, by increasing C, V content, changes the type and the quantity of carbide, obtains more MC type carbide, and to V, C, Cr, Mo, W are that alloy has carried out systematic study, according to high-carbon, high-vanadium high-speed steel composition-tissue-performance (σ w, K
1C, HRC, wear resistance etc.) between relation, influence rule and mechanism of action, the accurate ternary state diagram and the accurate double equilibrium diagram of Fe-C, Fe-V of C, V content and primary phase have been set up, obtained the relation of alloying constituent and solidified structure, can be according to performance and the cost requirement and the alloy structure requirement of roll, the design alloying constituent.Described high-carbon, high-vanadium high-speed steel, its composition is (weight percent Wt%): iron (Fe) surplus, vanadium (V) 1.0-15.0, carbon (C) 1.0-4.5, chromium (Cr) 2.0-5.0, molybdenum (Mo) 2.0-5.0, tungsten (W) 2.0-5.0, silicon (Si)≤0.35, manganese (Mn)≤0.35, phosphorus (P)≤0.03, sulphur (S)≤0.03.Described high-carbon, high-vanadium high-speed steel have excellent mechanical property and wear resistance, are much higher than 65Cr in carbon content
4W
3Mo
2VNi, 65Cr
4W
3Mo
2V and W
18Cr
4Under the situation of V, its K
1The C value still is much higher than the K of above-mentioned alloy
1The C value, and bending strength is suitable with it.
Bionic, non-smooth composite wear-resistant roller of the present invention, its preparation method is: after high-abrasive material high-carbon, high-vanadium high-speed steel are smelted by weight percent (Wt%) preparation of above-mentioned integral part, adopt the wear resistant roll skin of centre spinning method casting roll, core injects toughness materials such as soft steel or magnesium iron, two kinds of very big materials of difference in material properties are combined with each other, form surface abrasion resistance, core is the composite roll of flexible again.Then according to the bionics theory, the bionic, non-smooth form pattern that has wear-resisting effect by the Computer Design roller surface, non-smooth morphology can be convex closure, pit, ripple, scale etc., adopt the YAG laser that has high-energy, high-density and high repetition frequency through particular modulation, under the cooperation of assist gas, in conjunction with Computer Image Processing and numerical control of machine tools processing technology, process the bionic, non-smooth cell cube on the roll top layer, form the bionic, non-smooth composite wear-resistant roller of high-wearing feature.
The present invention has the following advantages: utilize the bionic, non-smooth technology composite wear-resistant roller surface treatment to be gone out to have the rough bionical form pattern of different shape, size and the regularity of distribution, hardness height, the wear resistance that not only has the rapid steel composite wear-resistant roller is good, the hardness drop is little, the red hardness during high temperature and be difficult for advantages such as roll breakage, and have the bionic, non-smooth and abrasion-resistant configuration of surface, wear resistance is further enhanced.The life-span of the chilled roll that use its work-ing life is more now improved 4-6 doubly, and the cost of the chilled roll that the cost of production bionic, non-smooth composite wear-resistant roller only uses now improves about 20-30%, has the high ratio of performance to price.
Description of drawings
Fig. 1 is that bionic, non-smooth and abrasion-resistant roller roller leatherware has undulatory structural form synoptic diagram.
Embodiment
Embodiment
Bionic, non-smooth and abrasion-resistant roller, core body is that soft steel or magnesium iron, roller skin are high-carbon, the high-vanadium high-speed steel of technique scheme composition, roller skin surface is a corrugated, and its ripple is wide: the height d=25 micron of b=50 micron, crest and trough, the ripple distribution arrangement is for radially or axially.
Claims (2)
1. bionic, non-smooth and abrasion-resistant roller, by high-abrasive material roller skin with have better flexible core material and be composited, it is characterized in that the roller leatherware has the undulatory non-smooth surface of micron order, the ripple form on its roller skin surface is: the wide b of ripple is that the height d of 50～200 microns, crest and trough is 25～100 microns, and the ripple distribution arrangement can be radially or axially.
2. a kind of bionic, non-smooth and abrasion-resistant roller according to claim 1, it is characterized in that described roller leather material is that high-carbon, high-vanadium high-speed steel casting by following composition (Wt%) forms: C1.0～4.5, V1.0～15.0, Cr2.0～5.0, Mo2.0～5.0, W2.0～5.0, the Fe surplus, wherein: Si≤0.35, Mn≤0.35, P≤0.03.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410059935 CN1238125C (en) | 2002-09-25 | 2002-09-25 | Bionic non-smooth wearable roller(III) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410059935 CN1238125C (en) | 2002-09-25 | 2002-09-25 | Bionic non-smooth wearable roller(III) |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021330298A Division CN1179804C (en) | 2002-09-25 | 2002-09-25 | Bionic, non-smooth and abrasion-resistant roller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1557579A true CN1557579A (en) | 2004-12-29 |
| CN1238125C CN1238125C (en) | 2006-01-25 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410059935 Expired - Fee Related CN1238125C (en) | 2002-09-25 | 2002-09-25 | Bionic non-smooth wearable roller(III) |
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| CN (1) | CN1238125C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100392290C (en) * | 2005-12-28 | 2008-06-04 | 吉林大学 | Bionic non smooth abrasion-proof gear wheel |
| CN102302964A (en) * | 2011-07-21 | 2012-01-04 | 吉林大学 | Cement grinding roller with bionic coupling wear-resistant surface layer and preparation method thereof |
| CN102921733A (en) * | 2012-10-18 | 2013-02-13 | 西北工业大学 | Wavelike roll of rolling device |
| CN110704981A (en) * | 2019-04-28 | 2020-01-17 | 吉林大学 | Method for manufacturing multi-scale bionic surface structure |
-
2002
- 2002-09-25 CN CN 200410059935 patent/CN1238125C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100392290C (en) * | 2005-12-28 | 2008-06-04 | 吉林大学 | Bionic non smooth abrasion-proof gear wheel |
| CN102302964A (en) * | 2011-07-21 | 2012-01-04 | 吉林大学 | Cement grinding roller with bionic coupling wear-resistant surface layer and preparation method thereof |
| CN102302964B (en) * | 2011-07-21 | 2013-05-22 | 吉林大学 | Cement grinding roller with bionic coupling wear-resistant surface layer and preparation method thereof |
| CN102921733A (en) * | 2012-10-18 | 2013-02-13 | 西北工业大学 | Wavelike roll of rolling device |
| CN102921733B (en) * | 2012-10-18 | 2014-08-20 | 西北工业大学 | Wavelike roll of rolling device |
| CN110704981A (en) * | 2019-04-28 | 2020-01-17 | 吉林大学 | Method for manufacturing multi-scale bionic surface structure |
| CN110704981B (en) * | 2019-04-28 | 2022-06-24 | 吉林大学 | Method for manufacturing multi-scale bionic surface structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1238125C (en) | 2006-01-25 |
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