CN102302964A - Cement grinding roller with bionic coupling wear-resistant surface layer and preparation method thereof - Google Patents
Cement grinding roller with bionic coupling wear-resistant surface layer and preparation method thereof Download PDFInfo
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Abstract
The invention relates to a grinding roller for cement powder grinding, in particular to a cement grinding roller with a bionic coupling wear-resistant surface layer and a preparation method thereof. Simulating a natural biological coupling wear-resistant principle, the bionic coupling wear-resistant surface layer consists of a bionic coupling strengthening layer, a wear-resistant layer arranged at the lower part of the strengthening layer and a transition layer, wherein the bionic coupling strengthening layer is formed by a cooperative combination of a millimeter-level convex hull, stripe, ripple, grid or squama-shape non-smooth form with an embedded-type structure. The preparation method comprises the following steps of: firstly preparing the transition layer on a parent substance surface of a core part material by using a flux-cored wire electric-arc surfacing method, wherein the thickness of the transition layer is 10-25 millimeters; then changing welding materials and further surfacing the wear-resistant layer on the surface of the transition layer, wherein the thickness of the wear-resistant layer is 5-15 millimeters; and finally preparing the bionic coupling strengthening layer. According to the cement grinding roller and the preparation method provided by the invention, the coupling among the grinding roller surface form, the structure, the soft-hard alternated organization and the materials is realized; the surface wear resistance and grinding effect are significantly increased; and compared with a smooth surface grinding roller with the same substrate material, the service life of the bionic coupling grinding roller is increased by 1.5-3 times.
Description
Technical field
The invention belongs to the grinding roller that cement grinding is used.
Background technology
Along with China's modernization of industry, cities and towns rapid economic development, the cement industry of one of China's basic industries has also obtained fast development.At present, the cement in China total output has accounted for more than 30% of world's cement total output.Over continuous more than 20 years, the annual growth rate of cement in China total output all remains on more than the double figures, no matter is that the equal height of growth rate or total output occupies first place in the world.Simultaneously, China is again the big export country of cement, it is reported, Asia cement volume of trade accounts for about 40% of world's cement general trade amount, and China accounts for 30%～40% of Asia outlet cement total amount.We can say that China has become genuine in the world cement big country.Moreover, from current China economic trend, cement demand is also in sustainable growth, and is therefore, more and more urgent to the demand of cement industry high-abrasive material and wear-proof technique.
Because condition of work is very abominable in the production process of cement industry, a large amount of wear problems in digging, fragmentation, grinding and the course of conveying of material, all can occurs and cause the damage of machine zero, parts.For ordinary production and the running of keeping cement industry, must there be enough wear-resisting spare parts to continue supply.In cement industry, the consumption of spare part occupies very big ratio in its production cost.Therefore, pay attention to and development high-abrasive material and life-span of improving spare part be directly connected to cement industry can be fast-developing and an important step of technological progress.
Cement mill is used for the raw materials of industry such as pulverizing cement raw material or grog and other building, chemical industry, pottery, have volume little, in light weight, take up an area of less, series of advantages such as power consumption is low, therefore, be used widely in industrially developed country in recent years.The cement grinding roller is the important process parts of cement mill, and its cost is closely related with roller surfaces wearability and running rate.Relatively rotate owing to not only existing high pressure between grinding roller and grinding roller or the mill, existing simultaneously, and the friction of grinding roller, mill and storeroom is also very serious, grinding roller applying working condition condition is harsh, and the wearing and tearing of cement grinding roller and fatigue rupture are very serious.Therefore, require roller surface that high wearability is arranged, core will have good toughness, and promptly grinding roller will have high intensity, toughness and wearability, and is higher to material and the technological requirement of making grinding roller.
At present; Cement industry at home; The general solder wire material of high rigidity, high-wearing feature, high-impact that adopts carries out the built-up welding processing to roller surface; Can built-up welding go out the superficial layer of the excellent performance that fertile material is difficult to obtain even can't obtain or the surperficial garland of different pattern, significantly improve the wearability of grinding roller.After the roller surface wearing and tearing, the built-up welding again that can carry out more than 10 times is handled, and has reduced cost and has improved production efficiency again, but brought a difficult problem for the processing of reparation again of roller.Material with superpower, high tenacity and high-wearing feature is difficult to processing, and it is big to repair processing capacity, and working strength of workers is big, operating environment is poor, and it is not high to repair working (machining) efficiency yet.Processing back workpiece also often has problems such as folder carbon, carburizing, deviation from circular from are big, therefore, seeks wearability and fatigue life that a kind of more efficient methods improves roller, is that cement industry is badly in need of the technical barrier that solves, has important and practical meanings.
Summary of the invention
The objective of the invention is to solve the problems referred to above that existing cement grinding roller exists, a kind of cement grinding roller with bionical coupling wearing coat and preparation method thereof is provided, make it have good abrasion resistance, obtain higher service life and grinding comprehensive effectiveness.
The cement grinding roller that the present invention has a bionical coupling wearing coat is to be composited by wearing layer, the transition zone of bionical coupling and intensifying layer, strengthening layer bottom and core material with better toughness; Be equipped with suitable Bionic Design and preparation means; Obtain to have the bionical coupled surface form of millimetre-sized convex closure, striped, ripple, grid or scale at roller surface, and the multilayer material of embedded surface structure and heterogeneity.
The multiple biology of occurring in nature is survived in the environment that has wearing and tearing to take place, and its body surface and internal microstructure have inherent tolerance to the wearing and tearing of hard things such as the grains of sand.Along with deepening continuously of bionics Study; The researcher finds; Organism adapts to the various functions that external environment condition appeared; Be not the effect of single factors or the simple addition of a plurality of factor effects, but by multiplely depend on each other for existence, interrelated factor is through certain mechanism coupling, synergistic result.For example; Functions such as the drag reduction that organism appeared, wear-resisting, antifatigue; Promptly be achieved through the multifactorial coupling of organism; Be different shape, structure, material formation of organism etc., the coupling through each other reaches the biological function optimization, environmental adaptation optimization and energy is consumed minimumization.
Discover, organism surface ubiquity geometric non-smooth characteristic, promptly the construction unit of certain geometrical shape is distributed in some position of its body surface randomly or regularly, and the shape of its construction unit has scale shape, convex closure shape, dimple-shaped, bristle shape and corrugated etc.Therefore; Be subjected to the inspiration of organism 26S Proteasome Structure and Function; Biological coupling phenomenon based on factors such as the wear-resisting form of canonical biometric body surface, structure, materials; Similitude principle through bionical Coupling Design; Geometric parameters such as the shape of bionical coupling unit body, size, the regularity of distribution, quantity are optimized design; Utilize solder technology to handle at the cement roller surface; Prepare bionical coupling wearing coat; Improve the anti-wear performance and the grinding effect of cement roller surface; Effectively improve the service life of cement grinding roller, invent the grinding roller that a kind of cement grinding is used.
The present invention relates to the grinding roller that a kind of cement grinding is used.Target is for improving the anti-wear performance of cement roller surface, and technical scheme is to utilize the bionic Coupling Design with making principle a kind of bionical coupling abrasive roller to be provided, and improves the grinding effect and the service life of cement grinding roller effectively.Bionical coupling grinding roller is composited by wearing layer, the transition zone of bionical coupling and intensifying layer, strengthening layer bottom and core material with better toughness; And intercouple with bionical form and structure; The design and the formation that are characterized in grinding roller have been simulated the wear-resisting principle of biological coupling, have the material composition of the bionical coupled surface form of millimetre-sized convex closure, striped, ripple, grid or scale, embedded surface structure and multilayer stack.
Concrete technical scheme of the present invention is:
A kind of cement grinding roller with bionical coupling wearing coat is composited by bionical coupling wearing coat and the core material with toughness, and bionical coupling wearing coat is made up of bionical coupling and intensifying layer, the wearing layer of strengthening layer bottom, transition zone.Said bionical coupling and intensifying layer is to have non-smooth morphology of millimetre-sized convex closure, striped, ripple, grid or flakey and the synergistic bionical coupled surface of damascene structures; The wear-resisting welding wire built-up welding of rich chromium cast iron by containing following composition (wt%) forms; The component of weld wire scope is following: 21.2-26.8%Cr; 3.8-5.6%C; 0.4-0.8%Si, 0.6-1.2%Mn, 0.006%S; 0.013%P, surplus is Fe; The wearing layer composition is consistent with strengthening layer, is processed by the welding material built-up welding; Bionical coupling grinding roller transition zone is that the high chromium, high manganese austenite welding material built-up welding by following composition (wt%) forms, and the material composition scope is following: 0.3-1.0%C, and 10-13%Mn, 10-14%Cr, 0.4-0.8%Si, 0.006%S, 0.014%P, surplus is Fe.
The convex closure on said grinding roller top layer is regular dot matrix and distributes, and the convex closure diameter is 5～10 millimeters, is 2.5～5 millimeters highly, and centre-to-centre spacing is 7.5～15 millimeters between convex closure.
The striped on described grinding roller top layer, its width of fringe are 5～15 millimeters, and the striped height is 5～10 millimeters, and centre-to-centre spacing is 7.5～30 millimeters between striped, the parallel distribution of striped, and the angle of striped distribution arrangement and grinding roller axis is 0 °～180 °.
The ripple on said grinding roller top layer; Its waviness width is 5～15 millimeters, and the difference in height of crest and trough is 3～20 millimeters, and the ripple spacing is 7.5～30 millimeters; Ripple exceeds 5～10 millimeters of grinding roller matrixes, and the angle of ripple distribution arrangement and grinding roller axis is 0 °～180 °.
The grid on said grinding roller top layer; Striped by the parallel distribution of both direction intersects to form each other; Its two crisscross width of fringe is 5～15 millimeters; The striped height is 5～10 millimeters; Centre-to-centre spacing is 7.5～30 millimeters between the striped of equidirectional parallel distribution, and the angle of both direction is 10 °～90 °.
The scale on said grinding roller top layer, its major axis are 10～30 millimeters, and minor axis is 5～15 millimeters, and the scale spacing is 10～25 millimeters, and the scale height is 4～8 millimeters.
Described a kind of cement grinding roller preparation method with bionical coupling wearing coat is the wearing layer through said bionical coupling and intensifying layer, strengthening layer bottom and transition zone prepares according to the following steps and be composited with the core material with toughness:
At first; Core material is carried out removing surface, inner flaw detection and preheating, and preheat temperature is controlled between 350 ℃～400 ℃, adopts high chromium, high manganese austenite welding material to carry out the welding wire electric arc built-up welding on the parent surface; The preparation transition zone, thickness is 10～25 millimeters;
Then, utilize the angle grinding machine, change resurfacing welding material again, adopt the wear-resisting welding wire of rich chromium cast iron to carry out built-up welding again on the transition zone surface transition overlay cladding surface rubbing, the preparation wearing layer, thickness is 5～15 millimeters;
At last, adopt and preparation wearing layer identical materials, further carry out built-up welding on the wearing layer surface of grinding roller and handle, preparation convex closure, striped, ripple, grid or non-smooth morphology of flakey and the synergistic bionical coupling and intensifying layer of damascene structures.For reducing the residual stress that causes after the built-up welding, to avoid cracking, postwelding is insulation earlier, and shove charge is heat-treated again.Holding temperature is 200 ℃, and temperature retention time is 0.5～1.0h, and annealing temperature is 500～600 ℃, the air cooling of coming out of the stove during furnace cooling to 100 ℃.
Said bionical coupling wearing coat also can go out to have the groove or the pit of different distributions rules such as striped, ripple, grid through the method for machining in the Surface Machining of grinding roller; And then with the method for electric arc consolidation; Fill out in groove or the pit high-abrasive material is molten; Recessed portion filled and 2.5～10 millimeters of protrusion roller surfaces, form soft, hard alternate structure at roller surface.
The technological means that the present invention adopted is: the different shape, size and the regularity of distribution that are gone out bionical coupled surface by Computer Design; Adopt the assay optimization method for designing; Select optimum bionical coupled surface morphological parameters; Through the method for built-up welding, process at roller surface have certain geometrical shape, bionical coupled surface form that chemical composition and institutional framework are different from matrix material.The institutional framework that obtains after the physical dimension of bionical coupled surface form, the regularity of distribution, chemical composition and the processing has important function to wearability and the grinding effect that improves roller surface, finally obtains having the high-wearing feature of bionical coupling wearing coat and the cement grinding roller of high grinding comprehensive effectiveness.
The invention has the beneficial effects as follows: utilize bionical coupling technique that the cement roller surface is handled, form bionical coupled surface form pattern, the wearability of grinding roller and grinding effect are greatly improved with different shape, size and regularity of distribution.Compare with the smooth surface grinding roller of same matrix material, improve 1.5～3 times service life.Can be directed against specific requirement, select the bionical coupled surface form pattern of different shape, size and the regularity of distribution for use, thereby obtain different performances.It is simple that the present invention also has manufacturing process, dependable performance, and cost is low, ratio of performance to price advantages of higher.Cement grinding roller with bionical coupling wearing coat can be widely used in the cement industry of China, promotes China's basic industries and developing export trade, promotes the growth of national economy.
Description of drawings
Fig. 1 is the structural representation with bionical coupling wearing coat grinding roller of convex closure;
Fig. 2 is the structural representation with bionical coupling wearing coat grinding roller of striped;
Fig. 3 is the structural representation with bionical coupling wearing coat grinding roller of ripple;
Fig. 4 is the structural representation with bionical coupling wearing coat grinding roller of grid;
Fig. 5 is the structural representation with bionical coupling wearing coat grinding roller of scale;
Fig. 6 has bionical coupling wearing coat grinding roller convex closure, different parameters and common grinding roller wear test front and back mass loss histogram;
Fig. 7 has bionical coupling wearing coat grinding roller striped, different parameters and common grinding roller wear test front and back mass loss histogram;
Fig. 8 has bionical coupling wearing coat grinding roller ripple, different parameters and common grinding roller wear test front and back mass loss histogram;
Fig. 9 has bionical coupling wearing coat grinding roller grid, different parameters and common grinding roller wear test front and back mass loss histogram;
Figure 10 has bionical coupling wearing coat grinding roller scale, different parameters and common grinding roller wear test front and back mass loss histogram.
The specific embodiment
Further specify particular content of the present invention and embodiment thereof below in conjunction with the accompanying drawing illustrated embodiment.
Wearing layer, transition zone that the wear-resisting cement grinding roller of bionical coupling is made up of bionical coupling and intensifying layer, high-abrasive material and the core material with better toughness are composited, and are characterized in that the grinding roller top layer has the bionical coupled surface form of convex closure, striped, ripple, grid or scale.The physical dimension of bionical coupled surface form, the regularity of distribution and chemical composition play an important role to the wearability that improves the grinding roller top layer, and bionical coupled surface form reasonable in design can significantly improve the wearability and the grinding effect of cement grinding roller.The present invention is the fertile material of cement grinding roller with toughness materials such as medium carbon steel or medium carbon low alloy steels, at first, adopts technique for overlaying to carry out built-up welding on the parent surface and handles, and the preparation transition zone, thickness is 10～25 millimeters; Then, change resurfacing welding material, carry out built-up welding on the transition zone surface again and handle, the preparation wearing layer, thickness is 5～15 millimeters; At last; Carrying out bionical coupling built-up welding on the wearing layer surface of grinding roller handles; Preparation convex closure, striped, ripple, grid or the wear-resisting form of squamose bionical coupling; Realize roller surface form, structure and soft, the harden tissue that closes, the coupling between the material; Obtain bionical coupling wearing coat, significantly improve the wearability and the grinding effect of roller surface.
Referring to Fig. 1, have the cement grinding roller of the bionical coupling wearing coat of convex closure, core material is 45 medium carbon steel, and the grinding roller transition zone is according to three kinds of different thickness, and the high chromium, high manganese austenite welding material built-up welding of getting heterogeneity (wt%) forms.
Adopt technique for overlaying that roller surface is processed into the three kinds of different sizes with convex closure and the bionical coupling and intensifying layer of distribution.Its material is the wear-resisting welding wire of rich chromium cast iron with heterogeneity (wt%).
Wearing layer is identical with the material composition of bionical coupling and intensifying layer, according to three kinds of different wearing layer thickness, is processed by the welding material built-up welding.
The parameter of transition zone, wearing layer and bionical coupling and intensifying layer with wear-resisting cement grinding roller of bionical coupling of convex closure is seen table 1.
The transition zone of the wear-resisting cement grinding roller of the bionical coupling of table 1 convex closure type, wearing layer and bionical coupling and intensifying layer parameter
Referring to Fig. 2, have the cement grinding roller of the bionical coupling wearing coat of striped, core material is 45 medium carbon steel, and the grinding roller transition zone is according to three kinds of different thickness, and the high chromium, high manganese austenite welding material built-up welding of getting heterogeneity (wt%) forms.
Adopt technique for overlaying that roller surface is processed into the three kinds of different sizes with striped and the bionical coupling and intensifying layer of distribution.Its material is the wear-resisting welding wire of rich chromium cast iron with heterogeneity (wt%).
Wearing layer is identical with the material composition of bionical coupling and intensifying layer, according to three kinds of different wearing layer thickness, is processed by the welding material built-up welding.
The parameter of transition zone, wearing layer and bionical coupling and intensifying layer with wear-resisting cement grinding roller of bionical coupling of striped is seen table 2.
The transition zone of the wear-resisting cement grinding roller of the bionical coupling of table 2 stripe, wearing layer and bionical coupling and intensifying layer parameter
Referring to Fig. 3, have the cement grinding roller of the bionical coupling wearing coat of ripple, core material is 35 medium carbon steel, and the grinding roller transition zone is according to three kinds of different thickness, and the high chromium, high manganese austenite welding material built-up welding of getting heterogeneity (wt%) forms.
Adopt technique for overlaying that roller surface is processed into the three kinds of different sizes with ripple and the bionical coupling and intensifying layer of distribution.Its material is the wear-resisting welding wire of rich chromium cast iron with heterogeneity (wt%).
Wearing layer is identical with the material composition of bionical coupling and intensifying layer, according to three kinds of different wearing layer thickness, is processed by the welding material built-up welding.
The parameter of transition zone, wearing layer and bionical coupling and intensifying layer with wear-resisting cement grinding roller of bionical coupling of ripple is seen table 3.
The transition zone of the wear-resisting cement grinding roller of the bionical coupling of table 3 ripple type, wearing layer and bionical coupling and intensifying layer parameter
Referring to Fig. 4, have the cement grinding roller of the bionical coupling wearing coat of grid, core material is 35 medium carbon steel, and the grinding roller transition zone is according to three kinds of different thickness, and the high chromium, high manganese austenite welding material built-up welding of getting heterogeneity (wt%) forms.
Adopt technique for overlaying that roller surface is processed into the three kinds of different sizes with grid and the bionical coupling and intensifying layer of distribution, grid is intersected to form by the striped of the parallel distribution of both direction each other.Its material is the wear-resisting welding wire of rich chromium cast iron with heterogeneity (wt%).
Wearing layer is identical with the material composition of bionical coupling and intensifying layer, according to three kinds of different wearing layer thickness, is processed by the welding material built-up welding.
The parameter of transition zone, wearing layer and bionical coupling and intensifying layer with wear-resisting cement grinding roller of bionical coupling of grid is seen table 4.
The transition zone of the wear-resisting cement grinding roller of the bionical coupling of table 4 grid type, wearing layer and bionical coupling and intensifying layer parameter
Referring to Fig. 5, have the cement grinding roller of the bionical coupling wearing coat of scale, core material is 35 medium carbon steel, and the grinding roller transition zone is according to three kinds of different thickness, and the high chromium, high manganese austenite welding material built-up welding of getting heterogeneity (wt%) forms.
Adopt technique for overlaying that roller surface is processed into the three kinds of different sizes with scale and the bionical coupling and intensifying layer of distribution.Its material is the wear-resisting welding wire of rich chromium cast iron with heterogeneity (wt%).
Wearing layer is identical with the material composition of bionical coupling and intensifying layer, according to three kinds of different wearing layer thickness, is processed by the welding material built-up welding.
The parameter of transition zone, wearing layer and bionical coupling and intensifying layer with wear-resisting cement grinding roller of bionical coupling of scale is seen table 5.
The transition zone of the wear-resisting cement grinding roller of the bionical coupling of table 5 Palta type, wearing layer and bionical coupling and intensifying layer parameter
To sum up embodiment can find out the good effect that the present invention obtains through following orthogonal experiments.The orthogonal experiments of analytical table 6～table 10 can be found out wearability with the bionical coupled surface form grinding roller common grinding roller apparently higher than no bionical form.Common grinding roller mass loss is 27g, and the mass loss with bionical coupled surface form grinding roller is all less than 27g.The present invention utilizes the optimization of orthogonal test technology that the parameter of bionical form is carried out layout, after drawing result of the test, adopts mathematical method pair of orthogonal result of the test to analyze, and finds out optimum bionical coupled surface morphological parameters.For example in the table 6, to the diameter (A) of convex closure, highly (B) and centre-to-centre spacing (C) and varying level thereof carry out the quadrature layout, and result of the test is carried out range analysis, thereby the optimized parameter that draws bionical coupled surface form is combined as A
3B
2C
1
According to embodiment 1, choosing cement grinding mill roller core body material is 45 medium carbon steel, and the grinding roller transition zone is that the high chromium, high manganese austenite welding material built-up welding by following composition (wt%) forms: 0.45%C; 11.52%Mn, 12.63%Cr, 0.67%Si; 0.006%S, 0.014%P, surplus is Fe.Transition region thickness is 15 millimeters.The bionical coupling and intensifying layer material of grinding roller is the wear-resisting welding wire of rich chromium cast iron of following composition (wt%): 23.72%Cr, 4.36%C, and 0.56%Si, 0.98%Mn, 0.006%S, 0.013%P, surplus is Fe.Wearing layer is identical with bionical coupling and intensifying layer material composition, is processed by the welding material built-up welding.Wearing layer thickness is 10 millimeters.
With centre-to-centre spacing between cell cube diameter, height and cell cube is that the research factor is carried out orthogonal test.Can find out wearability with bionical coupled surface form grinding roller common grinding roller apparently higher than no bionical form by result of the test.The mass loss of not having the cement grinding roller (accompanying drawing 6, tested number 10) of bionical form is 27g, and the mass loss with bionical coupled surface form grinding roller is all less than 27g.Can know the optimized parameter combination A of bionical coupled surface form according to the range analysis result
3B
2C
1(referring to table 6).
Table 6 has the bionical coupled surface form optimization test card of convex closure
According to embodiment 2, choosing cement grinding mill roller core body material is 45 medium carbon steel, and the grinding roller transition zone is that the high chromium, high manganese austenite welding material built-up welding by following composition (wt%) forms: 0.68%C; 12.14%Mn, 13.43%Cr, 0.59%Si; 0.006%S, 0.014%P, surplus is Fe.Transition region thickness is 17 millimeters.The bionical coupling and intensifying layer material of grinding roller is the wear-resisting welding wire of rich chromium cast iron of following composition (wt%): 25.61%Cr, 5.14%C, and 0.63%Si, 0.79%Mn, 0.006%S, 0.013%P, surplus is Fe.Wearing layer is identical with bionical coupling and intensifying layer material composition, is processed by the welding material built-up welding.Wearing layer thickness is 12 millimeters.
Angle with centre-to-centre spacing and striped distribution arrangement and grinding roller axis between width of fringe, striped height, striped is that the research factor is carried out orthogonal test.Can find out to have the common grinding roller of the wearability of bionical coupled surface form grinding roller apparently higher than no bionical form by result of the test.Cement grinding roller (accompanying drawing 7, the tested number 10) mass loss of not having bionical form is 26g, and the mass loss with bionical coupled surface form grinding roller is all less than 26g.Can know that according to the range analysis result optimized parameter of bionical coupled surface form is combined as A
2B
2C
3D
2(referring to table 7).
Table 7 has the bionical coupled surface form optimization test card of striped
According to embodiment 3, choosing cement grinding mill roller core body material is 35 medium carbon steel, and the grinding roller transition zone is that the high chromium, high manganese austenite welding material built-up welding by following composition (wt%) forms: 0.53%C; 10.96%Mn, 11.71%Cr, 0.72%Si; 0.006%S, 0.014%P, surplus is Fe.Transition region thickness is 13 millimeters.The bionical coupling and intensifying layer material of grinding roller is the wear-resisting welding wire of rich chromium cast iron of following composition (wt%): 24.21%Cr, 3.92%C, and 0.71%Si, 0.66%Mn, 0.006%S, 0.013%P, surplus is Fe.Wearing layer is identical with bionical coupling and intensifying layer material composition, is processed by the welding material built-up welding.Wearing layer thickness is 8 millimeters.
With the difference in height of difference in height, ripple spacing, ripple and the grinding roller matrix of waviness width, crest and trough and the angle of ripple distribution arrangement and grinding roller axis is that the research factor is carried out orthogonal test.Can find out to have the common grinding roller of the wearability of bionical coupled surface form grinding roller apparently higher than no bionical form by result of the test.Cement grinding roller (accompanying drawing 8, the tested number 10) mass loss of not having bionical form is 25g, and the mass loss with bionical coupled surface form grinding roller is all less than 25g.Can know that according to the range analysis result optimized parameter of bionical coupled surface form is combined as A
2B
2C
3D
2(referring to table 8).
Table 8 has the bionical coupled surface form optimization test card of ripple
According to embodiment 4, choosing cement grinding mill roller core body material is 35 medium carbon steel, and the grinding roller transition zone is that the high chromium, high manganese austenite welding material built-up welding by following composition (wt%) forms: 0.84%C; 11.26%Mn, 10.33%Cr, 0.47%Si; 0.006%S, 0.014%P, surplus is Fe.Transition region thickness is 12 millimeters.The bionical coupling and intensifying layer material of grinding roller is the wear-resisting welding wire of rich chromium cast iron of following composition (wt%): 21.93%Cr, 4.81%C, and 0.48%Si, 0.84%Mn, 0.006%S, 0.013%P, surplus is Fe.Wearing layer is identical with bionical coupling and intensifying layered material composition, is processed by the welding material built-up welding.Wearing layer thickness is 7.5 millimeters.
Angle with centre-to-centre spacing and both direction between width of fringe, striped height, striped is that the research factor is carried out orthogonal test.Can find out to have the common grinding roller of the wearability of bionical coupled surface form grinding roller apparently higher than no bionical form by result of the test.Cement grinding roller (accompanying drawing 9, the tested number 10) mass loss of not having bionical form is 28g, and the mass loss with bionical coupled surface form grinding roller is all less than 28g.Can know that according to the range analysis result optimized parameter of bionical coupled surface form is combined as A
1B
3C
2D
2(referring to table 9).
Table 9 has the bionical coupled surface form optimization test card of grid
According to embodiment 5, choosing cement grinding mill roller core body material is 35 medium carbon steel, and the grinding roller transition zone is that the high chromium, high manganese austenite welding material built-up welding by following composition (Wt%) forms: 0.78%C; 12.56%Mn, 11.12%Cr, 0.52%Si; 0.006%S, 0.014%P, surplus is Fe.Transition region thickness is 20 millimeters.The bionical coupling and intensifying layer material of grinding roller is the wear-resisting welding wire of rich chromium cast iron of following composition (Wt%): 22.64%Cr, 5.37%C, and 0.69%Si, 1.13%Mn, 0.006%S, 0.013%P, surplus is Fe.Wearing layer is identical with bionical coupling and intensifying layer material composition, is processed by the welding material built-up welding.Wearing layer thickness is 14 millimeters.
With major axis, minor axis, scale height and scale spacing is that the research factor is carried out orthogonal test.Can find out to have the common grinding roller of the wearability of bionical coupled surface form grinding roller apparently higher than no bionical form by result of the test.Cement grinding roller (accompanying drawing 10, the tested number 10) mass loss of not having bionical form is 26.6g, and the mass loss with bionical coupled surface form grinding roller is all less than 26.6g.Can know that according to the range analysis result optimized parameter of bionical coupled surface form is combined as A
3B
3C
3D
2(referring to table 10).
Table 10 has the bionical coupled surface form optimization test card of scale
Claims (8)
1. cement grinding roller with bionical coupling wearing coat; Be composited by bionical coupling wearing coat and core material with toughness; Bionical coupling wearing coat is by bionical coupling and intensifying layer; The wearing layer of strengthening layer bottom; Transition zone is formed; It is characterized in that; Said bionical coupling and intensifying layer is to have millimetre-sized convex closure; Striped; Ripple; The synergistic bionical coupled surface of non-smooth morphology of grid or flakey and damascene structures; The wear-resisting welding wire built-up welding of rich chromium cast iron with containing following composition forms; The component of weld wire scope by wt% is: 21.2-26.8%Cr; 3.8-5.6%C; 0.4-0.8%Si; 0.6-1.2%Mn; 0.006%S; 0.013%P, surplus is Fe; The wearing layer composition is consistent with strengthening layer, is processed by the welding material built-up welding; The transition zone of bionical coupling grinding roller is that the high chromium, high manganese austenite welding material built-up welding by following composition forms, and the material composition scope by wt% is: 0.3-1.0%C, and 10-13%Mn, 10-14%Cr, 0.4-0.8%Si, 0.006%S, 0.014%P, surplus is Fe.
2. a kind of cement grinding roller according to claim 1 with bionical coupling wearing coat; It is characterized in that the convex closure on said grinding roller top layer is regular dot matrix and distributes, the convex closure diameter is 5～10 millimeters; Be 2.5～5 millimeters highly, centre-to-centre spacing is 7.5～15 millimeters between convex closure.
3. a kind of cement grinding roller according to claim 1 and 2 with bionical coupling wearing coat; It is characterized in that; The width of fringe on said grinding roller top layer is 5～15 millimeters; The striped height is 5～10 millimeters; Centre-to-centre spacing is 7.5～30 millimeters between striped; The parallel distribution of striped, the angle of striped distribution arrangement and grinding roller axis are 0 °～180 °.
4. a kind of cement grinding roller according to claim 1 and 2 with bionical coupling wearing coat; It is characterized in that; The waviness width on said grinding roller top layer is 5～15 millimeters; The difference in height of crest and trough is 3～20 millimeters; The ripple spacing is 7.5～30 millimeters; Ripple exceeds 5～10 millimeters of grinding roller matrixes, and the angle of ripple distribution arrangement and grinding roller axis is 0 °～180 °.
5. a kind of cement grinding roller according to claim 1 and 2 with bionical coupling wearing coat; It is characterized in that; The grid on said grinding roller top layer; Striped by the parallel distribution of both direction intersects to form each other; Its two crisscross width of fringe is 5～15 millimeters; The striped height is 5～10 millimeters, and centre-to-centre spacing is 7.5～30 millimeters between the striped of equidirectional parallel distribution, and the angle of both direction is 10 °～90 °.
6. a kind of cement grinding roller with bionical coupling wearing coat according to claim 1 and 2 is characterized in that the scale on said grinding roller top layer; Its major axis is 10～30 millimeters; Minor axis is 5～15 millimeters, and the scale spacing is 10～25 millimeters, and the scale height is 4～8 millimeters.
7. a kind of cement grinding roller preparation method according to claim 1 with bionical coupling wearing coat; It is characterized in that; The wearing layer of said bionical coupling and intensifying layer, strengthening layer bottom and transition zone prepares according to the following steps and be composited with the core material with toughness
At first; Core material is carried out removing surface, inner flaw detection and preheating, and preheat temperature is controlled between 350 ℃～400 ℃, adopts high chromium, high manganese austenite welding material to carry out the welding wire electric arc built-up welding on the parent surface; The preparation transition zone, thickness is 10～25 millimeters;
Then, utilize the angle grinding machine, change resurfacing welding material again, adopt the wear-resisting welding wire of rich chromium cast iron to carry out built-up welding again on the transition zone surface transition overlay cladding surface rubbing, the preparation wearing layer, thickness is 5～15 millimeters;
At last; Adopt and preparation wearing layer identical materials; Further carry out built-up welding handles on the wearing layer surface of grinding roller; Preparation convex closure, striped, ripple, grid or non-smooth morphology of flakey and the synergistic bionical coupling and intensifying layer of damascene structures; For reducing the residual stress that causes after the built-up welding; Avoid cracking; Postwelding is insulation earlier; Shove charge is heat-treated again; Holding temperature is 200 ℃; Temperature retention time is 0.5～1.0h, and annealing temperature is 500～600 ℃, the air cooling of coming out of the stove during furnace cooling to 100 ℃.
8. a kind of cement grinding roller preparation method according to claim 1 with bionical coupling wearing coat; It is characterized in that; Said bionical coupling wearing coat process through surperficial machinery at grinding roller have striped, the groove or the pit of different distributions rule such as ripple, grid; And then with the method for electric arc consolidation; Fill out in groove or the pit high-abrasive material is molten; Recessed portion filled and 2.5～10 millimeters of protrusion roller surfaces, form soft, hard alternate structure at roller surface.
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| CN103639019A (en) * | 2013-12-20 | 2014-03-19 | 苏州优霹耐磨复合材料有限公司 | Efficient grinding system with high abrasive resistance |
| CN103861686A (en) * | 2014-03-19 | 2014-06-18 | 江苏新亚特钢锻造有限公司 | Grinding roller with bionic and wear-resistant composite coating and preparation technology of grinding roller |
| CN103990512A (en) * | 2014-06-15 | 2014-08-20 | 吉林大学 | Grinding roller with surface composed of oblique strip and straight strip structures |
| CN104084258A (en) * | 2014-07-12 | 2014-10-08 | 吉林大学 | Wear-resisting anti-fatigue squeeze roller with multi-material coupling structure |
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| CN103990512A (en) * | 2014-06-15 | 2014-08-20 | 吉林大学 | Grinding roller with surface composed of oblique strip and straight strip structures |
| CN103990512B (en) * | 2014-06-15 | 2016-09-07 | 吉林大学 | The grinding roller that a kind of surface is made up of slanted bar line and straight striated structure |
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| CN104549654A (en) * | 2015-01-12 | 2015-04-29 | 溧阳中材重型机器有限公司 | Abrasion-resistant device between grinding roller sleeve and grinding table lining plate for vertical grinder |
| CN104999227A (en) * | 2015-07-17 | 2015-10-28 | 深圳华盛过滤系统有限公司 | Production method of pressing rib of roller |
| CN108941561A (en) * | 2018-08-07 | 2018-12-07 | 吉林大学 | A kind of bionical components of coupling of high temperature resistant erosive wear |
| CN109046614A (en) * | 2018-08-09 | 2018-12-21 | 天津市国民制药机械有限公司 | A kind of modern Chinese medicine Chinese medicine grinding device |
| CN108942077A (en) * | 2018-08-13 | 2018-12-07 | 芜湖鼎瀚再制造技术有限公司 | A kind of grinder hammerhead renovation technique |
| CN109569790B (en) * | 2018-12-11 | 2021-11-26 | 广东隽诺环保科技股份有限公司 | Improved rolling roller |
| CN109569790A (en) * | 2018-12-11 | 2019-04-05 | 广东隽诺环保科技股份有限公司 | Improved rolling roller |
| CN109772853A (en) * | 2018-12-11 | 2019-05-21 | 广东隽诺环保科技股份有限公司 | Rolling roller, rolling crushing component and kitchen waste disintegrating and pulping treatment equipment |
| CN109482274A (en) * | 2018-12-11 | 2019-03-19 | 广东隽诺环保科技股份有限公司 | Improved roll crushing component |
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| CN114657451A (en) * | 2022-03-29 | 2022-06-24 | 西安热工研究院有限公司 | Hypereutectic high-chromium cast iron and suspension and modification composite treatment method thereof |
| CN114535751A (en) * | 2022-04-08 | 2022-05-27 | 西安理工大学 | Mining scraper CMT gradient surfacing layer and preparation method thereof |
| CN114535751B (en) * | 2022-04-08 | 2023-10-20 | 西安理工大学 | Mining scrapping plate CMT gradient surfacing layer and preparation method thereof |
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