CN100360272C - Mould having bionic non smooth surface - Google Patents
Mould having bionic non smooth surface Download PDFInfo
- Publication number
- CN100360272C CN100360272C CNB2004100110366A CN200410011036A CN100360272C CN 100360272 C CN100360272 C CN 100360272C CN B2004100110366 A CNB2004100110366 A CN B2004100110366A CN 200410011036 A CN200410011036 A CN 200410011036A CN 100360272 C CN100360272 C CN 100360272C
- Authority
- CN
- China
- Prior art keywords
- mould
- smooth
- cell cube
- smooth surface
- convex
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The present invention relates to an abrasion resistance, thermal resistance, fatigue resistance and cold and hot manufacture mould used for mechanical part forming, particularly a mould with a bionic non-smooth surface, which is characterized in that the forming work surface of the mould is distributed with convex-concave unit bodies which have the height difference of 0.01 to 0.5mm with basal body surfaces. The convex-concave unit bodies are spherical cap-shaped pits or convex closure, crateriform concave-convex bodies and parallel or grid-shaped stripes. Because the mould of the present invention has the bionic non-smooth surface, the abrasion resistance, the thermal resistance and the fatigue resistance of the surface of the mould can be obviously enhanced, the adhesion between the mould and a component is reduced, and thereby, the component demoulding performance is enhanced. Compared with a smooth surface mould which has identical basal body material, the service life of the present invention is enhanced by 0.5 to 3 times.
Description
Technical field
The present invention relates to be used for wear-resisting, the hot and cold mould of doing of thermal fatigue resistance of various mechanical part moulding, particularly a kind of mould with bionic non-smooth surface.
Background technology
In modernization industry is produced, the industrial products of 60%-90% need use Mould Machining, mould industry has become the important foundation of industrial development, it is particularly outstanding that the exploitation of many new products and production all depend on industries such as mould production, particularly automobile, light industry, electronics, aviation to a great extent.And as the mechanical industry on manufacturing industry basis, according to the prediction of international production technology association, 21 century machinery manufacturing industry part, it rough machined 75% and accurately machined 50% all will rely on mould to finish.Mould is described as " motive power that enters affluent society " in Japan, Germany then be preced with for " emperor in the metal-processing industry ", be considered as in Romania " mould is exactly a gold ", be called as " magnetic force industry " in the some other developed country of America and Europe.It can be asserted that, develop rapidly along with industrial, mould industry will play an increasingly important role in the national economic development.
In order to enhance productivity, improve semifinished product precision and stock utilization, reduce the component processing link, adopt and development less, no NEW CUTTING TECHNOLOGY, new equipment has proposed the requirement that develops to high accuracy, many types of chamber, high life direction to mould.Wherein, improve the most important thing that be mould industry development from now on die life.Utilize Modern High-Tech's means to prepare high performance novel die, prolong the active time of mould, avoid taking place premature failure, thereby retrieve unnecessary loss in the production, will promote industry and development and national economy greatly, have remarkable economic efficiency and social effect.By comparing the environmental factor of mold work, find the wearing and tearing of die surface, because of the crackle that heat fatigue produces at die surface, the adhesion of parts and die surface is the principal mode that causes mould to lose efficacy.Die surface and the mutual friction mutually of processed parts cause surface abrasion, and along with wear extent strengthens, the roughness value of cavity surface also will become greatly, must polish again and could continue to use.Wearing and tearing repeatedly, polishing cause that die size is overproof finally can not to be used, and belong to wear out failure.The mold cavity surface of hot-work die softens owing to being heated, and its wearability is poorer.The hot-work die that uses under the rapid heat cycle condition, the constraint that is subjected to internal layer because of expanding with heat and contract with cold of top layer produces thermal stress.If thermal stress is greater than the yield point of material under this temperature, just can press, tensile plastic strain, like this, mold cavity surface produces the plastic strain of circulation under the effect of cyclic thermal stres, through certain cycle, cause the surface to produce many tiny crackles, it is heat fatigue cracking, its shape has netted, and is radial, parallel shape etc.These crackles generally can not expanded to depth, but obviously influence the roughness of cavity surface, and as not reaching the requirement of processed parts to surface quality cold and hot fatigue failure then takes place this moment.The minority heat fatigue cracking also can further expand at mold materials internal flaw place or stress raiser sometimes, makes the mould fracture.When processed parts contact with die surface under pressure, at first the contact at each protruding peak, surface on microcosmic, its real contact area is much smaller than nominal contact area, thereby, the actual specific pressure of some contact point is very big, produces the extruding plastic deformation, and makes the lubricating oil film at contact point place, oxide-film be squeezed broken, cause intermetallic direct contact and adhere to, make parts be difficult to from mould separating.Little fast blank metal is bonded in die surface and forms hard " tubercle ", and produces the vestige that cut, scratch and bonding point are torn at parts surface; Because of adhering to, often cause the distortion of parts for thin parts when it is broken away from, this has just constituted adhesion failure.Therefore, at home and abroad, it is one of problem of being concerned about most of mould researcher that thereby wear-resisting, thermal fatigue resistance, the visbreaking performance of improving mould improve die life always, and also obtained some aspect the mould single performance and benefited our pursuits improving in recent years, but also do not had a kind of method that these performances are improved simultaneously up to now.
Summary of the invention
Thereby the objective of the invention is to propose a kind of can the raising simultaneously and adhere to the mould that improves the parts release property between die surface wearability, thermal fatigue resistance, reduction mould and the parts with bionic non-smooth surface.
Bionical is design of following new material and the potential effective way made.The organism structure is finished the optimization of natural selection through 2,000,000,000 years things, almost is perfect.By to the non-smooth morphology Study on Theory of organism surface, cause the formation of bionic non-smooth surface novel die design philosophy.
Non-smooth morphology is to research and propose next bionical new thought by structure and statics, dynamic performance to organism material.By discovering of as dung beetle biological, extra large living shellfish, pangolin, snake, lizard, bamboo wood etc. to some, the non-smooth morphology of functions such as the visbreaking that organism surface has, wear-resisting, anti-extrusion, cracking resistance line and its body surface has substantial connection, this is biological evolutionary optimization through 1 years, forms the feature that adapts with living environment gradually.According to traditional concept, body surface is more smooth, and the adhesion of itself and foreign object is littler, and the frictional resistance when therefore producing relative motion is also little.So workpiece or product that need reduce friction resistance or material adhere to all are designed to be processed into smooth surface.Yet nature shows this problem on the other hand to people: the biology that circles in the air on high, and its body surface or wing surface are not evolved into smooth skins or ala, but the low-yield non-smooth surface of forming by feather; The biology of in water, roaming, especially the biology of Quick off the mark is (as the deep-sea shark, the outburst toggle speed is surprising fast, can reach 10-20m/s), its body surface neither smooth surface, but the non-smooth surface that constitutes by scale or subcutaneous connective tissue, water tunnel test confirms that also suitably the non-smooth surface of design is littler than smooth surface resistance.Adhesion improves the parts release property between mould and the parts thereby this principle causes reducing.
Find that by the wearing and tearing to general material the wear extent of wearing and tearing beginning material is bigger, behind the certain hour, wearing and tearing tend towards stability, and at this moment being worn than soft tissue of wear surface exposed than sclerous tissues is protruding, the opposing wearing and tearing, and at this moment wear extent reduces.In the research to dung beetle, the discovery dung beetle is come in and gone out in viscosity bigger ight soil and soil, through frayed, can act on one's own, health seldom adheres to ight soil and earth, and this is because the dung beetle body surface has certain elasticity, under external force, strain takes place in the body surface energy-absorbing.The recessed position Yi Ji gas of leaving a blank can alleviate atmosphere negative pressure, thereby reduce the frictional force between body surface and ight soil and the soil.Boss is harder, the element in containing matrix, also contains some other elements, and its effect mainly is the extruding and the friction of bearing ight soil and soil, the opposing wearing and tearing.This structure of dung beetle body surface can significantly improve the die surface wearability just.
Conch surface and for example, by many uneven, the different synusia cross lamination of direction forms, and the hardness of synusia orientation and camber and shell surface, toughness distribute closely related.Studies show that this cross-level chip architecture has clear superiority aspect the prevention crack development.Insect cuticle also is a non-smooth structure at microscopically for another example, and the diverse location soft durometer of body surface has nothing in common with each other, and this produces different stress distribution in insect cuticle, and this structure provides the protection of the lightest, maximum intensity and toughness for insect.This principle can effectively improve the die surface thermal fatigue resistance, resists the germinating and the expansion of heat fatigue cracking.
Different organisms has different non-smooth morphology, the forms such as mixing shape that have convex closure (dung beetle head), pit (ant head), ripple (flower is buried the first elytrum), scale (pangolin, fish), grid (locust leg), decorative pattern (the dung beetle pereonite back of the body, seashells), strip and two or more shapes to combine.The non-smooth units body of body surface size is from tens microns to tens millimeters, and at the 12-16 micron, the convex closure height is at the 6-8 micron as dung beetle head convex closure diameter; Pangolin surface scale major axis is at the 20-40 millimeter, and minor axis full-size scope is at the 10-20 millimeter, and the scale height is at the 1-4 millimeter.On above theoretical foundation, preparation bionic non-smooth surface novel die, the cell cube that has the bionic, non-smooth function in die surface processing, these cell cubes are certain regular distribution, has certain geometrical shape, institutional framework is distinguished mutually with matrix, as required, can also occur the variation of chemical composition or content in the cell cube with respect to matrix.Thereby this mould can significantly improve to adhere between its surface abrasion resistance, thermal fatigue resistance, reduction mould and the parts and improve the parts release property.
The present invention is based on that above-mentioned thought realizes by following scheme:
Mould with bionic non-smooth surface, it is characterized in that being distributed with the convex-concave cell cube that is the 0.01-0.5mm difference in height with its matrix surface on the shaping work face of mould, this convex-concave cell cube is spherical crown shape pit or convex closure, the concavo-convex body of crateriform, parallel or latticed striped.And described convex-concave cell cube contains alloying elements cr, Mn, Si, Mo, Ni, W, V, B, with corresponding element content difference in the matrix is: Cr0.5-20%, Mn0.5-20%, Si0.1-3%, Mo0.1-5%, Ni0.1-5%, W0.5-20%, V0.5-10%, B0.01-0.1%.That is, can in cell cube, add a kind of even several element in Cr, Mn, Si, Mo, Ni, W, eight kinds of chemical elements of V, B, make the content of this element in cell cube be higher than matrix material, poor with matrix material formation chemical composition content.
Adding rule is: for cold-work die, desire improves its obdurability, can add Si, Mn, Cr element in cell cube; Desire improves wearability, can add W, Mo, V element; Desire improves its quenching degree, can add B, Mo element.For hot-work die, desire improves its elevated temperature strength, hardness and temper resistance, can add Cr, W, Mo, Ni, V element in cell cube; Desire improves its thermal fatigue resistance can add Cr, Mo, Ni element; Desire improves its quenching degree can add Cr, Ni, Si, Mn, B element.
Described spherical crown shape pit or convex closure cell cube are regular dot matrix at die surface and distribute, and its end circular diameter is 0.02-2mm, and centre-to-centre spacing is 0.03-4mm between cell cube.
The concavo-convex body of described crateriform is regular dot matrix at die surface and distributes, and circular diameter is 0.04-2.2mm at the bottom of its bossing, and the recessed portion back cut diameter is 0.02-2mm, and the recessed degree of depth is 0.01-0.5mm, and centre-to-centre spacing is 0.05-4mm between cell cube.
Described parallel or latticed striped, its width of fringe is 0.02-2mm, centre-to-centre spacing is 0.03-4mm between striped.
The preparation method that the present invention has the bionic non-smooth surface mould is: design bionical cell cube form on the die surface by computer, by methods such as machining, laser, erosion carving and combination spraying, chemistry, physics, sputter, vapour deposition, plating, infiltration, alloy plates, process at die surface have certain geometrical shape, organizational structure optimization or chemical composition have any different in the convex-concave shape cell cube of matrix, finally obtain high-wearing feature, high thermal fatigue resistance, be beneficial to the mould with bionic, non-smooth form of visbreaking.
Thereby mould of the present invention is owing to have to adhere between wearability, thermal fatigue resistance, reduction mould and the parts that bionic non-smooth surface can significantly improve die surface and improve the parts release property.Do not change the mould with bionic non-smooth surface of cell cube chemical composition, compare with the smooth surfaced mold with same matrix material its service life, improves 0.5-2 doubly; Change the mould with bionic non-smooth surface of cell cube chemical composition, compare with the smooth surfaced mold with same matrix material its service life, improves 1.5-3 doubly.By micro-analysis and detection to cell cube, can find that its institutional framework and chemical composition obviously distinguish with matrix, the variation of cell cube institutional framework and chemical composition can guarantee that the wearability of mould, thermal fatigue resistance obviously improve.Rough non-smooth morphology makes between die surface and product to be contacted by face and becomes a little or the line contact on the non-smooth surface, and the slit can directly communicate with atmosphere in the cell cube striped, has reduced the adhesion of mould and parts, thus the raising of assurance mould visbreaking characteristic.
Description of drawings
Fig. 1 is the auto parts cover cap structure of cast die schematic diagram that the surface has the non-smooth morphology of spherical crown shape convex closure;
Fig. 2 is the auto parts cover cap structure of cast die schematic diagram that the surface has the non-smooth morphology of protruding grid;
Fig. 3 is the auto parts cover cap structure of cast die schematic diagram that the surface has the non-smooth morphology of protruding grid;
Fig. 4 is the motorcar air conditioner shell mould of plastics structural representation that the surface has the non-smooth morphology of spherical crown shape pit;
Fig. 5 is the motorcar air conditioner shell mould of plastics structural representation that the surface has the non-smooth morphology of the concavo-convex body of crateriform;
Fig. 6 is the motorcar air conditioner shell mould of plastics structural representation that the surface has the non-smooth morphology of recessed striped;
Fig. 7 is the motorcar air conditioner shell mould of plastics structural representation that the surface has the non-smooth morphology of recessed striped;
Fig. 8 is that the surface has spherical crown shape convex closure and recessed striped mixes the differential mechanism sand casting mould structure schematic diagram of non-smooth morphology;
Fig. 9 is the automobile gear die structural representation that the surface has the non-smooth morphology of the concavo-convex body of crateriform;
Figure 10 is that the surface has projection and recessed grid mixes the arrangements for automotive doors trim panel diel structural representation of non-smooth morphology;
Figure 11 is the arrangements for automotive doors trim panel diel structural representation that the surface has the non-smooth morphology of recessed slanted bar line;
Figure 12 is the aluminum alloy die-casting die structural representation that the surface has the non-smooth morphology of recessed grid;
Figure 13 is that the surface has spherical crown shape convex closure and recessed striped mixes the differential mechanism sand casting mould structure schematic diagram of non-smooth morphology;
Figure 14 is the turbine blade structure of cast die schematic diagram that the surface has the non-smooth morphology of the concavo-convex body of crateriform;
Figure 15 is the turbine blade structure of cast die schematic diagram that the surface has the non-smooth morphology of protruding grid;
Figure 16 is that the surface has projection and recessed grid mixes the aluminum alloy die-casting die structural representation of non-smooth morphology;
Figure 17 is the magnesium alloy pressure-casting mould structure schematic diagram that the surface has the non-smooth morphology of spherical crown shape convex closure;
Figure 18 is the auto parts cover cap structure of cast die schematic diagram that the surface has the non-smooth morphology of the concavo-convex body of crateriform;
Figure 19 is the microstructure morphology of 45# steel mold surface by the bionic non-smooth surface cell cube of Laser Processing formation;
Figure 20 is the microstructure morphology of Laser Processing high speed steel mould bionic non-smooth surface cell cube;
Figure 21 is bionic non-smooth surface cell cube EDAX results figure;
The pattern microphoto that Figure 22 expands on non-smooth surface for heat fatigue cracking;
Figure 23 is 3Cr2W8V, H13, HD mould steel different shape surface abrasion experimental result;
Figure 24 changes and the comparison of the cell cube that does not change composition to the raising material property for 3Cr2W8V mould steel.
(a) among Fig. 1 to Figure 18 is its surperficial schematic top plan view, (b) is its cross section cross-sectional schematic.
The specific embodiment
The embodiment that provides below in conjunction with accompanying drawing is described in further detail the mould that the present invention has bionic non-smooth surface.
Embodiment 1
Make the auto parts cover cap die casting that the surface has the non-smooth morphology of spherical crown shape convex closure.
With reference to Fig. 1, the non-smooth morphology working surface of mould, be on its matrix m surface, to be regular dot matrix to be distributed with spherical crown shape convex closure cell cube u, circular diameter d is 0.02mm at the bottom of its spherical crown, the high h of spherical crown is 0.01mm, and spherical crown cell cube spacing g is 0.03mm, and mold materials is a H11 mould steel, under die casting AlSi9Cu3 aluminium alloy condition, the service life with bionic non-smooth surface mould, the smooth surfaced mold than equal base material improved 1.7 times.The cost of handling bionic non-smooth surface only improves 17%.
Embodiment 2
Make the auto parts cover cap die casting that the surface has the non-smooth morphology of protruding grid.
With reference to Fig. 2, the non-smooth morphology working surface of mould, be the convex stripe cell cube u that on its matrix m surface, distributed as net shape, its width of fringe w is 0.02mm, and the high h of striped is 0.05mm, and striped cell cube spacing g is 0.03mm, mold materials is a H11 mould steel, under die casting AlSi9Cu3 aluminium alloy condition, the service life with bionic non-smooth surface mould, the smooth surfaced mold than same substrate improved 1.8 times, and the cost of handling bionic non-smooth surface improves 17%.
Make the auto parts cover cap die casting that the surface has the non-smooth morphology of protruding grid.
With reference to Fig. 3, the non-smooth morphology working surface of mould, be the convex stripe cell cube u that on its matrix m surface, distributed as net shape, its width of fringe w is 0.1mm, and the high h of striped is 0.2mm, and striped cell cube spacing g is 0.8mm, mold materials is a H11 mould steel, under die casting AlSi9Cu3 aluminium alloy condition, the service life with bionic non-smooth surface mould, the smooth surfaced mold than same substrate improved 1.5 times, and the cost of handling bionic non-smooth surface improves 15%.
Embodiment 4
Make the motorcar air conditioner shell mould of plastics that the surface has the non-smooth morphology of spherical crown shape pit.
With reference to Fig. 4, the non-smooth morphology working surface of mould, be on its matrix m surface, to be regular dot matrix to be distributed with spherical crown shape pit cell cube u, circular diameter d is 0.2mm at the bottom of its spherical crown, and the dark h of spherical crown is 0.1mm, and spherical crown cell cube spacing g is 0.8mm, mold materials is a 3Cr2W8V mould steel, under same condition of work, the service life with bionic non-smooth surface mould, the smooth surfaced mold than same substrate improved 1.3 times, and the cost of handling bionic non-smooth surface only improves 15%.
Make the motorcar air conditioner shell mould of plastics that the surface has the non-smooth morphology of the concavo-convex body of crateriform.
With reference to Fig. 5, the non-smooth morphology working surface of mould, be on its matrix m surface, to be regular dot matrix to be distributed with the concavo-convex cell cube u of crateriform, circular diameter d1 is 0.04mm at the bottom of its bossing, recessed portion back cut diameter d2 is 0.02mm, unit height h1 is 0.05mm, recessed degree of depth h2 is 0.01mm, crateriform cell cube spacing g is 0.05mm, mold materials is a 3Cr2W8V mould steel, under same condition of work, the service life with bionic non-smooth surface mould, the smooth surfaced mold than same substrate improved 1.7 times, and the cost of handling bionic non-smooth surface only improves 17%.
Make the motorcar air conditioner shell mould of plastics that the surface has the non-smooth morphology of recessed striped.
With reference to Fig. 6, the non-smooth morphology working surface of mould, be parallelly on its matrix m surface to be distributed with recessed striated cell cube u, its width of fringe w is 0.5mm, and the dark h of striped is 0.3mm, and striated cell cube spacing g is 2mm, material is a 3Cr2W8V mould steel, work under similarity condition, the service life with bionic non-smooth surface mould, the smooth surfaced mold than same substrate improved 0.5 times, and the cost of handling bionic non-smooth surface only improves 6%.
Embodiment 7
Make the motorcar air conditioner shell mould of plastics that the surface has the non-smooth morphology of recessed striped.
With reference to Fig. 7, the non-smooth morphology working surface of mould, be parallelly on its matrix m surface to be distributed with recessed striated cell cube u, its width of fringe w is 0.2mm, and the dark h of striped is 0.4mm, and striated cell cube spacing g is 0.8mm, material is a 3Cr2W8V mould steel, work under similarity condition, the service life with bionic non-smooth surface mould, the smooth surfaced mold than same substrate improved 0.5 times, and the cost of handling bionic non-smooth surface only improves 6%.
Embodiment 8
The manufacturing surface has spherical crown shape convex closure and recessed striped mixes the differential mechanism sand casting mould of non-smooth morphology.
With reference to Fig. 8, the non-smooth morphology working surface of mould, be on its matrix m surface, to be staggeredly distributed with spherical crown shape convex closure cell cube u1 and recessed striped cell cube u2, circular diameter d is 1mm at the bottom of the spherical crown, high h1 is 0.5mm, the wide w of striped is 0.02mm, dark h2 is 0.05mm, cell cube spacing g is 2mm, mold materials is a HT200 cast iron, work under similarity condition, the service life with bionic non-smooth surface mould, the smooth surfaced mold than same substrate improved 2 times, and the cost of handling bionic non-smooth surface only improves 20%.
Make the automobile gear die that the surface has the non-smooth morphology of the concavo-convex body of crateriform.
With reference to Fig. 9, the non-smooth morphology working surface of mould, be on its matrix m surface, to be regular dot matrix to be distributed with the concavo-convex cell cube u of crateriform, circular diameter d1 is 1mm at the bottom of its bossing, recessed portion back cut diameter d2 is 0.6mm, unit height h1 is 0.3mm, recessed degree of depth h2 is 0.2mm, crateriform cell cube spacing g is 2mm, mold materials is a 3Cr2W8V mould steel, work under similarity condition, the service life with bionic non-smooth surface mould, the smooth surfaced mold than same substrate improved 1.6 times, and the cost of handling bionic non-smooth surface only improves 15%.
Embodiment 10
The manufacturing surface has projection and recessed grid mixes the arrangements for automotive doors trim panel diel of non-smooth morphology
With reference to Figure 10, the non-smooth morphology working surface of mould is to be latticed projection and recessed striped cell cube u1, the u2 of being staggeredly distributed with on its matrix m surface, the wide w1 of convex stripe is 2mm, and high h1 is 0.4mm, and the wide w2 of recessed striped is 0.02mm, dark h2 is 0.01, and cell cube spacing 9 is 4mm.Mold materials is the 45# steel, works under similarity condition, and the service life with bionic non-smooth surface mould, the smooth mould than same substrate improved 2 times, and the cost of handling bionic non-smooth surface only improves 20%.
Embodiment 11
Make the arrangements for automotive doors trim panel diel that the surface has the non-smooth morphology of recessed slanted bar line
With reference to Figure 11, the non-smooth morphology working surface of mould, be parallelly on its matrix m surface to be distributed with recessed striated cell cube u, its width of fringe w is 1mm, the dark h of striped is 0.2mm, and striated cell cube spacing g is 4mm, and mold materials is a H11 mould steel, contain Cr4.8% in the matrix material, Mo1.2%, Si0.8%, Mn0.2%, V0.4%, utilize alloy plate, the laser infiltration technique is fused into alloying element in cell cube, the coating alloy mixture contains 4.6% metal M n, 93.7% Metal Cr, the 1.7%Mo-Fe powder, coating alloy thickness is 0.13mm, and burn out rate is 5%, fuses into Mn in the cell cube of back, Cr, Mo content brings up to 0.7% respectively, 15%, 1.3%, Mn constituent content difference is 0.5%, Cr constituent content difference is 10.2%, and Mo constituent content difference is 0.1%, works under similarity condition, improve 1.5 times than the smooth surfaced mold of base material in opposite directions the service life with bionic non-smooth surface mould, and the cost of handling bionic non-smooth surface only improves 15%.
Embodiment 12
Make the aluminum alloy die-casting die that the surface has the non-smooth morphology of recessed grid
With reference to Figure 12, the non-smooth morphology working surface of mould is the recessed striped cell cube u that distributed as net shape on its matrix m surface, and the wide w of striped is 0.5mm, and dark h is 0.1, and cell cube spacing g is 2mm.Mold materials is a 3Cr2W8V mould steel, contain Cr2.5% in the matrix material, W8.2%, V0.3%, Si0.2%, Mn0.3% utilizes alloy plate, the laser infiltration technique is fused into cell cube with alloying element, and the coating alloy mixture contains the 55.6%W-Fe powder, the 0.7%Si-Fe powder, the 43.7%Mo-Fe powder, coating alloy thickness is 0.07mm, burn out rate is 5%, handle in the cell cube of back and increased 5%Mo, W, Si content is respectively 18%, 0.3%, Mo constituent content difference is 5%, and W constituent content difference is 9.8%, Si constituent content difference is 0.1%, under die casting AlSi9Cu3 aluminium alloy condition, the service life with bionic non-smooth surface mould, the smooth surfaced mold than same substrate improved 2.2 times, and the cost of handling bionic non-smooth surface improves 20%.
Embodiment 13
The manufacturing surface has spherical crown shape convex closure and recessed striped mixes the differential mechanism sand casting mould of non-smooth morphology
With reference to Figure 13, the non-smooth morphology working surface of mould, be on its matrix m surface, to be staggeredly distributed with spherical crown shape convex closure and recessed striped cell cube u1, u2, circular diameter d is 2mm at the bottom of the spherical crown, and high h1 is 0.4mm, and the wide w of striped is 0.05mm, dark h2 is 0.03mm, cell cube spacing g is 4mm, and mold materials is a HT200 cast iron, contains Si1.5% in the matrix material, Mn0.8, utilize alloy plate, the laser infiltration technique is with alloying element W, B, Ni fuses into cell cube, and the coating alloy mixture contains the 82.3%W-Fe powder, the 0.2%B-Fe powder, 17.5% electrolysis Ni, coating alloy thickness is 0.03mm, and burn out rate is 5%, and handling in the cell cube of back has increased 20%W, 0.01%B, 5%Ni, W constituent content difference is 20%, B constituent content difference is 0.01%, Ni constituent content difference is 5%, work under similarity condition, the service life with bionic non-smooth surface mould, the smooth mould than same substrate improved 3 times, and the cost of handling bionic non-smooth surface only improves 22%.
Embodiment 14
Make the turbine blade die casting that the surface has the non-smooth morphology of the concavo-convex body of crateriform
With reference to Figure 14, the non-smooth morphology working surface of mould, be on its matrix m surface, to be regular dot matrix to be distributed with the concavo-convex cell cube u of crateriform, circular diameter d1 is 2.2mm at the bottom of its bossing, recessed portion back cut diameter d2 is 2mm, unit height h1 is 0.5mm, and recessed degree of depth h2 is 0.5mm, and crateriform cell cube spacing g is 4mm, mold materials is the 45# steel, utilize alloy plate, the laser infiltration technique is with alloying element Mn, V, B fuses into cell cube, and coating material is by 59.4% metal M n, 39.2%V-Fe powder, the mixture that the 1.4%B-Fe powder is formed, coating alloy thickness is 0.02mm, and burn out rate is 5%, handles in the cell cube of back to contain Mn20%, V10%, B0.1%, Mn constituent content difference is 20%, the V element content difference is 10%, B constituent content difference is 0.1%, work under similarity condition, the service life with bionic non-smooth surface mould, the smooth mould than same substrate improved 2.5 times, and the cost of handling bionic non-smooth surface improves 22%.
Embodiment 15
Make the turbine blade die casting that the surface has the non-smooth morphology of protruding grid
With reference to Figure 15, the non-smooth morphology working surface of mould, be the convex stripe cell cube u that distributed as net shape on its matrix m surface, its width of fringe w is 1mm, and the high h of striped is 0.5mm, striped cell cube spacing g is 4mm, mold materials is a H11 mould steel, contains Cr4.8%, Mo1.2% in the matrix material, Si0.8%, Mn0.2%, V0.4% utilizes alloy plate, the laser infiltration technique is fused into cell cube with alloying element, the coating alloy mixture contains 8.2% electrolysis Ni, the 51%V-Fe powder, 40.8% Metal Cr, coating alloy thickness is 0.005mm, burn out rate is 5%, handle in the cell cube of back and increased 0.1%Ni, V, the Cr element brings up to 0.9%, 5.3% respectively, Ni constituent content difference is 0.1%, the V element content difference is 0.5%, and Cr constituent content difference is 0.5%, works under similarity condition, service life with bionic non-smooth surface mould, the smooth surfaced mold than same substrate improved 2.5 times, and the cost of handling bionic non-smooth surface improves 20%.
Embodiment 16
The manufacturing surface has projection and recessed grid mixes the aluminum alloy die-casting die of non-smooth morphology
With reference to Figure 16, the non-smooth morphology working surface of mould, be on its matrix m surface, to be latticed projection and recessed striped cell cube u1, the u2 of being staggeredly distributed with, the wide w1 of convex stripe is 1.5mm, high h1 is 0.3mm, the wide w2 of recessed striped is 0.02mm, and dark h2 is 0.05mm, and cell cube spacing g is 4mm.Mold materials is the 45# steel, utilize alloy plate, the laser infiltration technique is with alloying elements cr, Si, W, Mo fuses into cell cube, the coating alloy mixture contains the 2%W-Fe powder, 13.3%Si-Fe powder, 18%Mo-Fe powder, 66.7% Metal Cr, coating alloy thickness is 0.08mm, and burn out rate is 5%, handles in the cell cube of back to contain 20%Cr, 3%Si, 0.5%W, 3%Mo, Cr, Si, W, Mo constituent content difference is respectively 20%, 3%, 0.5%, 3%, under the pack alloy condition, service life with bionic non-smooth surface mould, the smooth surfaced mold than same substrate improved 3 times, and the cost of handling bionic non-smooth surface improves 25%.
Embodiment 17
Make the magnesium alloy pressure-casting mould that the surface has the non-smooth morphology of spherical crown shape convex closure
With reference to Figure 17, the non-smooth morphology working surface of mould, be on its matrix m surface, to be regular dot matrix to be distributed with spherical crown shape convex closure cell cube u, circular diameter d is 0.5mm at the bottom of its spherical crown, and the high h of spherical crown is 0.3mm, and spherical crown cell cube spacing g is 4mm, mold materials is a 3Cr2W8V mould steel, contain Cr2.5% in the matrix material, W8.2%, V0.3%, Si0.2%, Mn0.3% utilizes alloy plate, the laser infiltration technique is fused into cell cube with alloying element, and the coating alloy mixture contains 49.5% metal M n, the 31.9%V-Fe powder, the 18.6%Mo-Fe powder, coating alloy thickness is 0.03mm, burn out rate is 5%, handle in the cell cube of back and increased 2%Mo, V, the Mn constituent content brings up to 5.3% respectively, 10%, Mo, V, Mn constituent content difference is respectively 2%, 5%, 9.7%, under the diecast magnesium alloy condition, the service life with bionic non-smooth surface mould, the smooth surfaced mold than same substrate improved 2.0 times, and the cost of handling bionic non-smooth surface only improves 19%.
Embodiment 18
Make the auto parts cover cap die casting that the surface has the non-smooth morphology of the concavo-convex body of crateriform
With reference to Figure 18, the non-smooth morphology working surface of mould, be on its matrix m surface, to be regular dot matrix to be distributed with the concavo-convex cell cube u of crateriform, circular diameter d1 is 1.2mm at the bottom of its bossing, recessed portion back cut diameter d2 is 0.8mm, unit height h1 is 0.3mm, and recessed degree of depth h2 is 0.2mm, and crateriform cell cube spacing 9 is 3mm.Mold materials is a H11 mould steel, contain Cr4.8% in the matrix material, Mo1.2%, Si0.8%, Mn0.2%, V0.4%, utilize alloy plate, the laser infiltration technique is fused into alloying element in cell cube, the coating raw material is by 65.2% electrolysis Ni, the mixture that the 34.8%Si-Fe powder is formed, and coating alloy thickness is 0.008mm, burn out rate is 5%, handling in the cell cube of back has increased 3%Ni, and the Si constituent content is increased to 2%, Ni, Si constituent content difference is respectively 3%, 1.2%, under same condition of work, the service life with bionic non-smooth surface mould, the smooth surfaced mold than same substrate improved 2.5 times, and the cost of handling bionic non-smooth surface only improves 22%.
To sum up embodiment can find out the good effect that the present invention obtains by following test testing result.
With reference to Figure 19, Figure 19 is the microstructure morphology of 45# steel mold surface by the bionic, non-smooth cell cube of Laser Processing formation, crystal grain degree significant change in the visible element body.Bottom matrix granularity is 6 grades, and reaches the 11-12 level in the upper unit body.Grain refinement is not sacrificed toughness for intensity is improved, even the schedule of reinforcement that toughness is slightly improved, more tiny, the fragmentation of particle after the laser treatment, and has higher dislocation structure than conventional heat treatment, increased the number of dislocation motion obstacle, not only intensity has great raising, and toughness also improves a lot.So this class tissue helps the raising of wearability, thermal fatigue resistance.
With reference to Figure 20, Figure 20 is the microstructure morphology of the non-smooth units body of Laser Processing high speed steel mould surface biomimetic.Visible alloying element and carbide evenly distribute in the cell cube, and the crystal grain degree is refined as the 10-11 level by original 7 grades, and its wearability, thermal fatigue resistance improve.
With reference to Figure 21, Figure 21 is a bionic, non-smooth cell cube EDAX results.It has illustrated the situation that alloying element and carbon distribute in cell cube.Through the bionic, non-smooth technology of preparing, alloying element evenly fuses into the bionic, non-smooth cell cube, forms solid solution, compound or heterogeneous coexistence in cell cube.Content by control module body chemical composition or composition make it with the matrix chemical composition between form different content difference, thereby obtain the mechanical performance different with matrix, make wearability, thermal fatigue resistance, the anti-adhesive raising of non-smooth surface mould.For example elements such as Cr, Mn, the Si second phase particle tiny for forming, that disperse distributes provides necessary member condition among the figure.When moving dislocation runs into the second phase particle on the slide surface, or cut, or walk around, sliding deformation just can be proceeded, and this process will consume extra energy undoubtedly, causes reinforcement.The Mo element to second mutually or other solute atoms inhibitory action is arranged in that crystal boundary is poly-partially, make crackle be difficult to form and expansion like this at crystal boundary, improve surperficial toughness etc.
With reference to Figure 22, the pattern that Figure 22 expands on non-smooth surface for heat fatigue cracking finds that the bionic, non-smooth cell cube has the effect of blocking-up crackle expansion.At fatigue crack with the cell cube junction, crackle can't pass the bionic, non-smooth cell cube, perhaps stop at the cell cube place, perhaps walk around from the cell cube next door, many forks appear in crackle, it is tortuous more that the path of expansion also becomes, it has reflected that crackle is subjected to bigger obstruction in expansion process, thereby has to often change direction, and this illustrates that also the bionic, non-smooth cell cube has bigger thermal fatigue resistance, crackle will be expanded, and must consume more energy.Non-smooth units body with certain regularity of distribution in die surface, effectively blocks the germinating and the expansion of heat fatigue cracking as the dowel pin pinning, and the thermal fatigue resistance of die surface integral body is significantly improved.
With reference to table 1, table 1 for 5 kinds of component materials recording through universal testing machine in 45# steel, the lip-deep adhesion values of high speed steel mould different shape, the latticed cell cube of 45# steel mold Surface Machining wherein, high speed steel mould Surface Machining striated cell cube.As seen the adhesion that has between bionic non-smooth surface mould and parts in the table obviously reduces than smooth surface, along with the increase of cell cube in die surface distribution density (the geometric projection area sum of cell cube on matrix surface and the ratio of surface of the base body), the adhesion between parts and the die surface (but having except the individual discrete point) on a declining curve.For different component materials, adhesion decline scope difference.High-speed steel is under 20% condition in the cell cube distribution density, and the highest decline 6% of adhesion minimumly drops to 0; In distribution density is under 30% condition, the highest decline 9% of adhesion, minimum decline 1.2%; In distribution density is under 40% condition, the highest decline 16.5% of adhesion, minimum decline 5.6%.The 45# steel is under 20% condition in distribution density, and the highest decline 26.6% of adhesion minimumly drops to 0.9%; In distribution density is under 30% condition, the highest decline 26.7% of adhesion, minimum decline 4.3%; In distribution density is under 40% condition, the highest decline 30% of adhesion, minimum decline 5.4%.
The different component materials of table 1 are at 45# steel, the lip-deep adhesion values unit of high speed steel mould different shape: KN
With reference to Figure 23, Figure 23 is the comparison of 3Cr2W8V, H13, three kinds of mould steel processing of HD grid, striped, pit shape non-smooth surface and smooth surface wear test, and wherein the distribution density of cell cube is 30%.As seen have the bionic non-smooth surface mould and obviously reduce than the smooth surfaced mold wear extent in wear test, wearability significantly improves.3Cr2W8V mould steel non-smooth surface wearability improves 30%-59% in this experiment, H13 mould steel non-smooth surface wearability improves 47%-56%, HD mould steel non-smooth surface wearability improves 29%-57%, wherein, different non-smooth morphology experimental result differences, the factors such as non-smooth units body size, distribution that illustrate have different influences to wearability.
With reference to Figure 24, Figure 24 for a change with the cell cube that does not change composition to improving the comparison of material property.Wherein, mold materials is a 3Cr2W8V mould steel, and on the working surface of mould, recessed striped cell cube has distributed as net shape, the wide w of striped is 0.5mm, and dark h is 0.1, and cell cube spacing g is 2mm, and the matrix material chemical composition is Cr2.5%, W8.2%, V0.3%, Si0.2%, Mn0.3%; Increased 5%Mo in a kind of therein cell cube of mould sample, W, Si content bring up to 18%, 0.3% respectively, and Mo constituent content difference is 5%, and W constituent content difference is 9.8%, and Si constituent content difference is 0.1%.The result shows, it is wear-resisting, thermal fatigue resistance, visbreaking performance improve 250%, 100%, 150% respectively than the smooth sample of same matrix material for the non-smooth sample that does not change the cell cube chemical composition; It is wear-resisting, thermal fatigue resistance, visbreaking performance improve 400%, 200%, 250% respectively and the non-smooth sample that changes the cell cube chemical element content is than the smooth sample of same matrix material.This explanation is through appropriate process processing unit body, its component content of appropriate change and matrix material formation content difference, and this kind non-smooth surface has more excellent wear-resisting, thermal fatigue resistance, visbreaking performance than the non-smooth surface that does not change the cell cube composition.
Claims (3)
1. the mould with bionic non-smooth surface is distributed with the convex-concave cell cube that is the 0.01-0.5mm difference in height with its matrix surface on the shaping work face of mould, it is characterized in that this convex-concave cell cube is the concavo-convex body of crateriform, parallel or latticed striped; And described convex-concave cell cube contains alloying elements cr, Mn, Si, Mo, Ni, W, V, the B that is higher than matrix, with corresponding element content difference in the matrix is: Cr0.5-20%, Mn0.5-20%, Si0.1-3%, Mo0.1-5%, Ni0.1-5%, W0.5-20%, V0.5-10%, B0.01-0.1%.
2. the mould with bionic non-smooth surface according to claim 1, it is characterized in that the concavo-convex body of described crateriform is regular dot matrix at die surface and distributes, circular diameter is 0.04-2.2mm at the bottom of its bossing, the recessed portion back cut diameter is 0.02-2mm, the recessed degree of depth is 0.01-0.5mm, and centre-to-centre spacing is 0.05-4mm between cell cube.
3. the mould with bionic non-smooth surface according to claim 1 is characterized in that described parallel or latticed striped, and its width of fringe is 0.02-2mm, and centre-to-centre spacing is 0.03-4mm between striped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100110366A CN100360272C (en) | 2004-08-16 | 2004-08-16 | Mould having bionic non smooth surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100110366A CN100360272C (en) | 2004-08-16 | 2004-08-16 | Mould having bionic non smooth surface |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1597241A CN1597241A (en) | 2005-03-23 |
| CN100360272C true CN100360272C (en) | 2008-01-09 |
Family
ID=34662686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100110366A Expired - Fee Related CN100360272C (en) | 2004-08-16 | 2004-08-16 | Mould having bionic non smooth surface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100360272C (en) |
Families Citing this family (11)
| 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 |
| CN102581109B (en) * | 2012-03-26 | 2014-05-28 | 江苏大学 | Method for manufacturing non-smooth surface of organism and device |
| CN103789740A (en) * | 2014-02-19 | 2014-05-14 | 上海交通大学 | Preparation method of planar die surface with microstructure characteristics |
| CN103769830A (en) * | 2014-02-19 | 2014-05-07 | 上海交通大学 | Preparation method for surface microstructure characteristics of complex mould |
| CN103949648B (en) * | 2014-05-08 | 2016-06-22 | 吉林大学 | A kind of preparation method of the bionic functional surface wearing composite material of high-strength, high-ductility |
| CN104786069B (en) * | 2015-04-29 | 2017-03-15 | 长春大学 | Bionical slip machine tool guideway of a kind of coupling and preparation method thereof |
| CN107410402A (en) * | 2017-05-10 | 2017-12-01 | 吉林大学 | A kind of bionical reducing adhesion resistance kneader |
| CN108941561B (en) * | 2018-08-07 | 2020-04-10 | 吉林大学 | Coupling bionic part resistant to high-temperature erosion and abrasion |
| JP7164274B2 (en) * | 2018-08-10 | 2022-11-01 | 広島アルミニウム工業株式会社 | die casting mold |
| CN114031330A (en) * | 2021-11-04 | 2022-02-11 | 中冶武汉冶金建筑研究院有限公司 | Bionic wear-resistant water-permeable pavement brick and preparation method thereof |
| CN114472775A (en) * | 2022-01-29 | 2022-05-13 | 江苏拜欧尼克智能科技有限公司 | Titanium alloy die forging mould |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4416170A (en) * | 1981-07-30 | 1983-11-22 | Champion International Corporation | Method of producing a steel caul |
| JPH1192909A (en) * | 1997-09-24 | 1999-04-06 | Toyota Motor Corp | Complex surface treatment of die for hot or warm working |
| JP2000037732A (en) * | 1998-07-23 | 2000-02-08 | Nok Corp | Method for treating surface of molding die and rubber molding die |
| US6113379A (en) * | 1998-07-02 | 2000-09-05 | Anchor Wall Systems, Inc. | Process for producing masonry block with roughened surface |
| CN1327939A (en) * | 2000-09-24 | 2001-12-26 | 吉林工业大学 | Bionic part with adhesion-reduced, desorptive and rough surface |
| CN1418740A (en) * | 2002-09-25 | 2003-05-21 | 吉林大学 | Bionic, non-smooth and abrasion-resistant roller |
| CN1513639A (en) * | 2003-07-29 | 2004-07-21 | 吉林大学 | Method of rasing wearability of mechanical element |
-
2004
- 2004-08-16 CN CNB2004100110366A patent/CN100360272C/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4416170A (en) * | 1981-07-30 | 1983-11-22 | Champion International Corporation | Method of producing a steel caul |
| JPH1192909A (en) * | 1997-09-24 | 1999-04-06 | Toyota Motor Corp | Complex surface treatment of die for hot or warm working |
| US6113379A (en) * | 1998-07-02 | 2000-09-05 | Anchor Wall Systems, Inc. | Process for producing masonry block with roughened surface |
| JP2000037732A (en) * | 1998-07-23 | 2000-02-08 | Nok Corp | Method for treating surface of molding die and rubber molding die |
| CN1327939A (en) * | 2000-09-24 | 2001-12-26 | 吉林工业大学 | Bionic part with adhesion-reduced, desorptive and rough surface |
| CN1418740A (en) * | 2002-09-25 | 2003-05-21 | 吉林大学 | Bionic, non-smooth and abrasion-resistant roller |
| CN1513639A (en) * | 2003-07-29 | 2004-07-21 | 吉林大学 | Method of rasing wearability of mechanical element |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1597241A (en) | 2005-03-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100360272C (en) | Mould having bionic non smooth surface | |
| CN100382939C (en) | Sharp edged cutting tools | |
| CN102133837B (en) | Magnesium alloy appearance processing method | |
| KR20120135214A (en) | Modular extrusion die | |
| CN107532293A (en) | Diaphragm and its manufacture method | |
| CN108817117B (en) | Warm extrusion die with multi-region heterogeneous material composite structure and preparation method thereof | |
| KR100632763B1 (en) | Press molding die and manufacturing method of same | |
| CN109881109A (en) | A kind of preparation method of laser cladding of material and laser cladding coating | |
| CN101537537A (en) | Upgrading and modifying method for laser surface of drawing mould | |
| CN103111850A (en) | Bionic coupling cast iron guide rail and manufacturing method thereof and regeneration method of waste machine tool guide rail | |
| CN108950543A (en) | The thermally conductive wear-resisting endurance mold of one kind and its manufacturing process | |
| CN112496036A (en) | Method for preparing metal gradient material by rolling | |
| CN101168844A (en) | Treatment method for increasing die self-demouding performance | |
| CN109158522B (en) | Large-scale crankshaft mold with coupling bionic surface | |
| CN105583300A (en) | Wear resistant stamping mold with better rigidity and impact strength | |
| CN1644950A (en) | Braking drum with bionic non-smooth surface | |
| CN201342433Y (en) | Assembled die for extruding titanium profile and titanium alloy profile | |
| JP2015223794A (en) | Manufacturing method of mold component | |
| CN101391297B (en) | Method for bionic bone structure ceramics framework for local reinforcement of mechanical parts wearing-resistance | |
| CN101837475B (en) | Coated tip for processing aluminum materials and preparation method thereof | |
| CN105522158A (en) | Method of molding and manufacturing cam by using Se-Sb-Zn-Mn series aluminum alloy as material through powder metallurgy | |
| CN205182810U (en) | Cone crusher who comprises potassium steel and high -carbon chromium steel rolls mortar wall | |
| CN203253760U (en) | Hardened and penetrating-plated layer on surface of extrusion punch | |
| CN105082414A (en) | Forming mold | |
| CN103876610A (en) | Container with fins at bottom and manufacturing method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shenzhen Hanxing Precision Technology Co., Ltd. Assignor: Jilin University Contract fulfillment period: 2008.2.19 to 2013.2.19 contract change Contract record no.: 2009440001814 Denomination of invention: Mould having bionic non smooth surface Granted publication date: 20080109 License type: Exclusive license Record date: 20091117 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.2.19 TO 2013.2.19; CHANGE OF CONTRACT Name of requester: SHENZHEN HANXING PRECISION TECHNOLOGY CO.,LTD. Effective date: 20091117 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080109 Termination date: 20130816 |