CN102714951B - Coupling bionic surface of agricultural machinery soil-engaging component - Google Patents
Coupling bionic surface of agricultural machinery soil-engaging component Download PDFInfo
- Publication number
- CN102714951B CN102714951B CN201210243601.6A CN201210243601A CN102714951B CN 102714951 B CN102714951 B CN 102714951B CN 201210243601 A CN201210243601 A CN 201210243601A CN 102714951 B CN102714951 B CN 102714951B
- Authority
- CN
- China
- Prior art keywords
- bionical
- imitative
- parts
- bulge
- bionic
- 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
- Fertilizers (AREA)
Abstract
The invention discloses a coupling bionic surface of an agricultural machinery soil-engaging component. The coupling bionic surface consists of bionic convex structures with dung beetle-like shell dimpling and bionic strip convex structures with cetacean-like head outlines, wherein the outline of each bionic convex structure with dung beetle-like shell dimpling accords with the following mathematical expression: x<2>+y<2>+z<2>=R<2>; the adjacent bionic convex structures are arranged according to diamond manner, wherein the angle of smaller included angle in the diamond arrangement is theta, theta is larger than 30 degrees and smaller than 60 degrees, and the ionic convex structures with dung beetle-like shell dimpling are applied to the surface of the component; the outline of the cross section of the bionic strip convex structure with cetacean-like head outline accords with the mathematical expression: x=na*cosbeta-a*cosnbetay=na*sinbeta-a*sinbeta; the bionic strip convex structures with cetacean-like head outlines are applied to easily damaged parts of the component; and the surface of the component and the convex structures are made of white iron, and the core of the component is made of ductile cast iron.
Description
Technical field
The present invention relates to a kind of agricultural machinery and touch native parts coupling bionic surface.
Background technology
The invention of farming instrument is the critical event in human history, and the mankind have done long improvement for the operating efficiency and the quality that improve farming instrument, and Yangcheng Mouldboard as famous in China adopts white iron manufacture, has good wearability and de-native resistance reducing performance.Along with the fast development of agricultural mechanization, ploughing speed improves greatly, and farming environment becomes increasingly complex, for farming tool performance, especially the performance of touching native cultivating member has proposed more and more higher requirement, and the fragility of the materials such as white iron has limited its application in high speed, impact operating mode.In order to meet the impact for tactile native parts mechanical property under high speed tillage condition, at present often with high-quality steel such as 65Mn, adopt Cold-forming process to produce.But processing cost is higher, wearability is also poor than white iron, has been subject to certain impact service life.
Touch the wearability of native parts improving, reduce production costs and the aspect such as tillage resistance, all have patent report both at home and abroad.At present, patent achievement mainly concentrates on material modification and two aspects of bionics techniques application.
One, aspect material modification:
1, Chinese Patent Application No.: 01133458.4, the day for announcing is 2005.01.26.Denomination of invention is made binder alloy for " bionic non-smooth antifriction composite coating and preparation method thereof " discloses a kind of non-smooth antifriction composite coating with multi-element Cu-base solder, to strengthen wear-resisting hard point particle is connected with matrix steel, form a non-smooth antifriction composite coating on the surface of matrix steel, the composition of multi-element Cu-base solder is: zinc, manganese, nickel, tin, silicon, rare earth, surplus copper; The composition of brazing flux is: the mixture of boric acid and borax, and add a small amount of fluoride; The composition that strengthens wear-resisting hard point particle is carbide, and granularity is 50～100 orders, adds total amount to exist: 20～80Wt%.The preparation method of non-smooth antifriction composite coating: after multi-element Cu-base solder is smelted by the preparation of above-mentioned constituent, granulation size is 20～80 order powder, by mass percentage: 30～70% evenly mix with one in 20～80% tungsten carbide, titanium carbide, carborundum, two kinds or three kinds and brazing flux 1～3, after heating multi-element Cu-base solder and brazing flux fusing, multi-element Cu-base solder is put soldering by hard and is formed a non-smooth antifriction composite coating at matrix steel surface, to improve the wearability of the mechanical part that is unearthed.
2, Chinese Patent Application No.: 91106940.2, the day for announcing is 1994.01.26, denomination of invention discloses a kind of high-abrasive material for " anti-wear material for long-life digging elements and manufacture method thereof ", for the processing of the engineering machinery digging elements such as agricultural, mine, national defence, taking general steel as mother metal, surface spraying weld one deck transitional horizon and one deck wearing layer, transitional horizon is containing Cr, B, Si, Ni component, wearing layer is the melts of WC and bonded metal, wherein WC content 50～70%, binding metal is containing Cr, B, Si, Cu, Ni component.
Two, in bionics techniques application aspect:
1, Chinese Patent Application No.: 201010166033.5, the day for announcing is 2010.09.22, denomination of invention discloses a kind of conical soil parts with abrasion-proof geometry surface for " a kind of conical soil parts with abrasion-proof geometry surface ", the bionic geometric structure unit that these parts are distributed by matrix and matrix surface forms, and described bionic geometric structure unit comprises convex closure type, pit type, annular protruding rib stripe shape, annular recessed rib type, spiral convex closure type, spiral pit type, spiral prominence rib type and the recessed rib type of spiral.
2, Chinese Patent Application No.: 201010166033.5, the day for announcing is 2009.12.16, and denomination of invention discloses a kind of bionic, drag-reducing shovel plate of ridge-forming apparatus for " bionic, drag-reducing shovel plate of ridge-forming apparatus and method for designing thereof ", and this shovel face is with y=-0.0l48x
2+ 0.86563x-1.51 is crestal line, y=-0.0054Z
2+ 30.49 is plain line, the curved surface that plain line forms along crestal line.
3, Chinese Patent Application No.: 200810050347.1, the day for announcing is 2010.03.17, denomination of invention discloses a kind of bionic abrasion-proof structure surface for " rib type bionic abrasion-proof structure surface ", particularly relates to a kind of rib type Bionic wear-resisting geometry surface.The present invention is the geometry feature that the scale surface based on soil burrowing animal pangolin has resistance to soil abrasive wear, its objective is and solves wear problem existing and bulk material contact component.This bionic abrasion-proof structure surface is by existing equipment or member and the surface modification structure that contacts material, sets up from the teeth outwards a series of ribbed shape structure with certain geometric parameter and spacing.Its Bionic wear-resisting planform is: y=asin (bx+c).Wherein, a-amplitude, b-frequency, c-initial phase, 0 < a≤12mm, 0≤bx-c≤π, 0≤x≤20mm.Rib spacing: 0 < L < 30mm.
Prior art scheme is known, for being subject to the serious parts of abrasive wear taking the tactile native cultivating member of agricultural machinery as representative, the main method that improves its wearability is to optimize material and application bionics techniques, fact proved it is all effective, but generally need to carrying out in process of production secondary operations and even repeatedly processing of these two kinds of methods, has increased the production cost of parts greatly.
Summary of the invention
The object of the invention is to solve the tactile native cultivating member wearability of current agricultural machinery poor, the problem that production cost is higher, and provide a kind of agricultural machinery to touch native parts coupling bionic surface.
The present invention is made up of the imitative bionical bulge-structure of dung beetle body surface dimpling and the bionical strip projected parts structure of imitative cetacean contouring head; The appearance profile of the bionical bulge-structure of each imitative dung beetle body surface dimpling meets following mathematic(al) representation:
x
2+y
2+z
2＝R
2
X, y wherein and z are the x-axis, y-axis and z-axis in three-dimensional system of coordinate;
Wherein R<4mm; The high H<2mm of bionical bulge-structure, bionical bulge-structure center distance L<25mm.Be platform or pit on the top of bionical bulge-structure, platform radius r
1<2mm, it is hemispherical that pit is, pit radius r
2<2mm, pit depth H
1<2mm.As depicted in figs. 1 and 2;
Four adjacent bionical bulge-structures are arranged according to rhombus mode, in diamond array, be θ compared with clip angle angle, 30 ° of < θ <60 °, adjacent bionical bulge-structure spacing is L, and bionical bulge-structure spacing L and bionical bulge-structure height H meet following relation:
As shown in Figure 3, diagonal longer in diamond array is parallel with soil movement direction in cultivating procedure, and the bionical bulge-structure of imitative dung beetle body surface dimpling is applied to the surface of parts.
The cross section contour of the bionical strip projected parts structure of imitative cetacean contouring head meets following mathematic(al) representation:
x＝na·cosβ-a·cosnβ
y＝na·sinβ-a·sinnβ
X wherein and y are x axle and the y axle in two-dimensional coordinate system;
Wherein n is characteristic coefficient, 2≤n≤4, a≤12mm in formula in addition, 0 °≤β≤180 °.
The bionical strip projected parts structure applications of imitative cetacean contouring head is in the damageable zone of parts.
The bionical strip projected parts structure of the bionical bulge-structure of parts surface and imitative dung beetle body surface dimpling and imitative cetacean contouring head is white iron, and parts core is spheroidal graphite cast-iron.
The present invention compared with prior art beneficial effect is:
1, the tactile native parts coupling of a kind of agricultural machinery of the present invention bionic surface is aimed at the abrasive conditions of the tactile native farming workpiece diverse location of agricultural machinery, has carried out respectively bionic design and application.At parts easily-worn position, design the bionical strip projected parts structure of imitative cetacean contouring head, touching the effect to soil water conservancy diversion in the native course of work, can reduce the tillage resistance of parts in the time of farming; At parts surface, design the bionical bulge-structure of imitative dung beetle body surface dimpling, in increasing parts wearability, play the effect of de-native drag reduction.Experimental result shows, compared with the smooth surface parts of the present invention and same material, wearability on average increases by 6～12%, and working resistance on average reduces by 4～7%.
2, the bionical strip projected parts structure of imitative cetacean contouring head of the present invention is to process at one time in casting process by the method for castingin, has avoided the techniques such as built-up welding to carry out to parts the cost increase that secondary operations causes.
3, white iron forms top layer and bionical projection, improved wearability, the service life of parts and taken off native resistance reducing performance; The parts core that spheroidal graphite cast-iron forms, the mechanical property of guarantee parts.
4, the present invention adopts the method time processing moulding of castingin, has designed according to actual needs composite bionic surface texture form, is improving on the basis of parts serviceability the production cost of the parts that greatly reduce.
Brief description of the drawings
Fig. 1 and Fig. 2 are the schematic diagram of the bionical bulge-structure of the imitative dung beetle head dimpling of the present invention.Wherein Fig. 1 is that top is the schematic diagram of platform; Fig. 2 is the schematic diagram of top pit.
Fig. 3 is the arrangement mode schematic diagram of the present invention's bionical bulge-structure.
Fig. 4 is the cross section contour schematic diagram that the present invention adopts the bionical bulge-structure of strip of the characteristic coefficient n=3 of embedding method formation.
Fig. 5, Fig. 6 and Fig. 7 are the schematic diagram that the present invention is applied to plough.Fig. 5 is wherein the front view of plough; Fig. 6 is the left view of plough; Fig. 7 is the vertical view of plough.
Embodiment
Higher but the poor toughness of white iron hardness, the agricultural machinery of being produced by it touches native cultivating member can not be adapted in high speed, impact the application of operating mode, and spheroidal graphite cast-iron or cast steel components hardness and wearability are poor, be directed to this, the present invention is also optimized design to casting iron liquid composition and imbedding process.In spheroidal graphite cast-iron production process, tend to make parts occur air chill phenomenon due to composition and technological problems, be that white iron appears in parts surface, due to the higher but poor toughness of the hardness of white iron, can cause parts to stretch, the tired hydraulic performance decline that waits, therefore air chill is often defined as the harmful phenomenon in spheroidal graphite cast-iron production process, but the hardness of white iron is high, wearability and de-native resistance reducing performance are good, therefore present invention is directed at air chill phenomenon parts composition and production technology are improved.Founding materials composition of the present invention, nodularization in fusion process, inoculated technology is similar to production spheroidal graphite cast-iron, but the strict quality of watering Si and C and Mn and S in cast iron liquid of controlling, Si is 0.6-0.8 with the quality of C than scope, Mn is 16-20 with the quality of S than scope, simplifies in general spheroidal graphite cast-iron production process simultaneously and prevents that air chill is as covered the technological means such as rice husk.Adopting the tactile native cultivating member of the agricultural machinery surface that the present invention produces is that hardness is high, the white iron that wearability is good, and core is the good spheroidal graphite cast-iron of toughness, has ensured wearability and the mechanical property of parts so simultaneously.
The present invention is made up of the imitative bionical bulge-structure of dung beetle body surface dimpling and the bionical strip projected parts structure of imitative cetacean contouring head; The appearance profile of the bionical bulge-structure 1 of each imitative dung beetle body surface dimpling meets following mathematic(al) representation:
x
2+y
2+z
2＝R
2
X, y wherein and z are the x-axis, y-axis and z-axis in three-dimensional system of coordinate;
Wherein R<4mm; The high H<2mm of bionical bulge-structure 1, bionical bulge-structure 1 center distance L<25mm.Be platform or pit on the top of bionical bulge-structure 1, platform radius r
1<2mm, it is hemispherical that pit is, pit radius r
2<2mm, pit depth H
1<2mm.As depicted in figs. 1 and 2;
Four adjacent bionical bulge-structures 1 are arranged according to rhombus mode, in diamond array, be θ compared with clip angle angle, 30 ° of < θ <60 °, adjacent bionical bulge-structure 1 spacing is L, and bionical bulge-structure 1 spacing L and bionical bulge-structure 1 height H meet following relation:
As shown in Figure 3, diagonal longer in diamond array is parallel with soil movement direction in cultivating procedure, and the bionical bulge-structure 1 of imitative dung beetle body surface dimpling is applied to the surface of parts.
The cross section contour of the bionical strip projected parts structure 2 of imitative cetacean contouring head meets following mathematic(al) representation:
x＝na·cosβ-a·cosnβ
y＝na·sinβ-a·sinnβ
X wherein and y are x axle and the y axle in two-dimensional coordinate system;
Wherein n is characteristic coefficient, 2≤n≤4, a≤12mm in formula in addition, 0 °≤β≤180 °.
Be illustrated in figure 4 in the time of n=3 the feature outlines in the wearability cross section of the bionical strip projected parts structure 2 of imitative cetacean contouring head.The bionical strip projected parts structure 2 of imitative cetacean contouring head is applied to the damageable zone of parts.
The bionical strip projected parts structure 2 of the bionical bulge-structure 1 of parts surface and imitative dung beetle body surface dimpling and imitative cetacean contouring head is white iron, and parts core is spheroidal graphite cast-iron.
In order further to strengthen the wearability of the bionical projection of strip of the present invention, the prefabricated section adopting in imbedding process is mainly by Fe powder, Si powder, C powder, Ti powder composition.The high temperature that C powder and Ti powder can produce in the time of casting issues raw synthetic reaction and generates TiC, TiC synthetic reaction can be emitted a large amount of heat further, conversion zone peripheral part material is melted, and is combined in the interface that rapid solidification can improve between TiC and matrix material afterwards, increases the strength of materials; In addition TiC, as the highest metal carbides of hardness, can improve hardness and the intensity of castingin strip biomimetic features effectively, effectively improves the wearability of material and parts.
The present invention is applied to the example of plough:
As shown in Fig. 5, Fig. 6 and Fig. 7, plough 3 is the conventional native cultivating members that touch, and the sowing of being everlasting, applies when intertillage, and because plough embedded depth is darker, the resistance being subject to when work is larger; When farming, contact soil hardness larger, component wear is comparatively serious.Plough 3 is produced by embedding method; Plough 3 surfaces are white iron, and core is spheroidal graphite cast-iron; There is the bionical bulge-structure 1 of imitative dung beetle body surface dimpling as depicted in figs. 1 and 2 on plough 1 surface, bionical bulge-structure 1 radius R=2mm, and the high H=1mm of bionical bulge-structure 1, there is r on bionical bulge-structure 1 top
1the platform of=1mm; Bionical bulge-structure 1 is by diamond array, and in diamond array, less angle is less than 60 °, bionical bulge-structure 1 center distance L=5mm, and diagonal longer in diamond array is parallel with soil movement direction in cultivating procedure; Be in Fig. 7, to fill cross spider region in the plough 3 more serious position of wearing and tearing, form the bionical strip projected parts structure 2 of imitative cetacean contouring head by embedding method, bionical strip projected parts structure 2 cross section contours of imitative cetacean contouring head meet the feature contour wire shaped of n=3 described in Fig. 4, its height H
0=4mm.
Claims (3)
1. agricultural machinery touches a native parts coupling bionic surface, it is characterized in that: be made up of the imitative bionical bulge-structure of dung beetle body surface dimpling and the bionical strip projected parts structure of imitative cetacean contouring head;
The appearance profile of the bionical bulge-structure of each imitative dung beetle body surface dimpling meets following mathematic(al) representation:
x
2+y
2+z
2＝R
2
X, y wherein and z are the x-axis, y-axis and z-axis in three-dimensional system of coordinate;
Wherein R<4mm; The high H<2mm of bionical bulge-structure, bionical bulge-structure center distance L<25mm; Be platform or pit on the top of bionical bulge-structure, platform radius r
1<2mm, it is hemispherical that pit is, pit radius r
2<2mm, pit depth H
1<2mm; Four adjacent bionical bulge-structures are arranged according to rhombus mode, in diamond array, are θ compared with clip angle angle, 30 ° of < θ <60 °; The bionical bulge-structure of imitative dung beetle body surface dimpling is applied to the surface of parts;
The cross section contour of the bionical strip projected parts structure of each imitative cetacean contouring head meets following mathematic(al) representation:
x＝na·cosβ-a·cosnβ
y＝na·sinβ-a·sinnβ
X wherein and y are x axle and the y axle in two-dimensional coordinate system;
Wherein n is characteristic coefficient, 2≤n≤4, a≤12mm in formula in addition, 0 °≤β≤180 °; The bionical strip projected parts structure applications of imitative cetacean contouring head is in the damageable zone of parts.
2. a kind of agricultural machinery according to claim 1 touches native parts coupling bionic surface, it is characterized in that: the bionical bulge-structure spacing of described adjacent imitative dung beetle body surface dimpling is L, bionical bulge-structure spacing L and bionical bulge-structure height H meet following relation:
Diagonal longer in diamond array is parallel with soil movement direction in cultivating procedure.
3. a kind of agricultural machinery according to claim 1 and 2 touches native parts coupling bionic surface, it is characterized in that: the bionical bulge-structure of described parts surface and imitative dung beetle body surface dimpling and the bionical strip projected parts structure of imitative cetacean contouring head are white iron, and parts core is spheroidal graphite cast-iron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210243601.6A CN102714951B (en) | 2012-07-13 | 2012-07-13 | Coupling bionic surface of agricultural machinery soil-engaging component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210243601.6A CN102714951B (en) | 2012-07-13 | 2012-07-13 | Coupling bionic surface of agricultural machinery soil-engaging component |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102714951A CN102714951A (en) | 2012-10-10 |
| CN102714951B true CN102714951B (en) | 2014-06-11 |
Family
ID=46940938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210243601.6A Expired - Fee Related CN102714951B (en) | 2012-07-13 | 2012-07-13 | Coupling bionic surface of agricultural machinery soil-engaging component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102714951B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102972128B (en) * | 2012-12-14 | 2015-04-22 | 吉林大学 | Bionic core moldboard type sowing boot |
| CN104089175B (en) * | 2014-07-03 | 2016-07-27 | 吉林大学 | A kind of bionical endurance wear resistant cast iron coupling bionic surface and forming method thereof |
| WO2019044330A1 (en) * | 2017-08-31 | 2019-03-07 | 住友理工株式会社 | Paper feed roller |
| CN108108537B (en) * | 2017-12-11 | 2019-12-31 | 山东理工大学 | Modeling method for cross-sectional profile curve of convex hull cross shaft of scarlet dung beetle epidermis soil facing surface |
| CN107980249B (en) * | 2017-12-11 | 2019-10-29 | 山东理工大学 | Utilize the method for the clean dung beetle sand dune shape anisotropy convex closure design bionics plow moldboard of the legendary god of farming |
| CN108122278B (en) * | 2017-12-11 | 2019-10-29 | 山东理工大学 | With the method for the legendary god of farming's clean dung beetle epidermis sand dune shape convex closure design pit type bionics plow moldboard |
| CN108122279B (en) * | 2017-12-11 | 2019-10-29 | 山东理工大学 | The method for imitating the clean dung beetle sand dune shape convex closure design pit type bionics plow moldboard of the legendary god of farming |
| CN108121859B (en) * | 2017-12-12 | 2019-12-31 | 山东理工大学 | Modeling method for Shennong dung beetle skin soil facing surface convex hull longitudinal axis section profile curve |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4580639A (en) * | 1983-01-20 | 1986-04-08 | Ralph Mckay Limited | Agricultural sweep with planar intermediate section |
| US6799385B2 (en) * | 2002-03-11 | 2004-10-05 | Nelson Stud Welding, Inc. | Abrasion resistant earth working surface and weld stud |
| CN1230272C (en) * | 2003-07-29 | 2005-12-07 | 吉林大学 | Method of rasing wearability of mechanical element |
| RU2354087C1 (en) * | 2007-12-04 | 2009-05-10 | Волгоградская государственная сельскохозяйственная академия | Deep tiller |
| CN102210201B (en) * | 2011-03-25 | 2013-03-20 | 吉林大学 | Ridge culture field soil surface microtopography processing bionic structure rolling soil-touching part |
| CN102326468A (en) * | 2011-03-25 | 2012-01-25 | 吉林大学 | Bionic wear-resisting deep-digging shovel blade |
| CN202697161U (en) * | 2012-07-13 | 2013-01-30 | 吉林大学 | Coupling bionic surface of soil touch component of agricultural machinery |
-
2012
- 2012-07-13 CN CN201210243601.6A patent/CN102714951B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN102714951A (en) | 2012-10-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102714951B (en) | Coupling bionic surface of agricultural machinery soil-engaging component | |
| US9038359B2 (en) | Rotary implement having hard metallic layer and method therefor | |
| CN103381527B (en) | A kind of tungsten carbide strengthens iron-based abrasion resistant overlaying-welding flux-cored wire | |
| CN104289826B (en) | Boride hardfacing flux-cored wire and preparation method thereof | |
| CN202697161U (en) | Coupling bionic surface of soil touch component of agricultural machinery | |
| CN102326468A (en) | Bionic wear-resisting deep-digging shovel blade | |
| CN103331441B (en) | Special in the cobalt based ceramic metal powdered alloy of press tool laser melting coating | |
| CN102714950B (en) | Anti-drag wear-resistant coupling bionic surface of agricultural machinery farming component | |
| CN100400218C (en) | Wearable tubular welding rod made from tungsten carbide | |
| CN205996405U (en) | A kind of compound pricker applies material | |
| CN202663766U (en) | Bamboo-like wear-resistant surface | |
| CN108115283B (en) | Method for preparing coupling bionic surface according to components and working conditions and hot heading die | |
| CN1186402C (en) | Bionic non-smooth antifriction composite coating and its manufacture method | |
| CN103999565B (en) | A kind of bionical excavation spade | |
| CN101545088B (en) | Iron-based flux-cored electric arc spray-melting wire | |
| CN102714949B (en) | Bamboo-like wear-resistant surface | |
| CN205839840U (en) | A kind of large hydraulic excavator wear-resistant bucket tooth | |
| CN102785003B (en) | Method for overlaying iron-based surface composite material | |
| CN103305829A (en) | Special nickel-based cermet alloy powder for laser cladding of surface of screw | |
| CN109454952A (en) | A kind of multi-layer wear-resistant clad metal sheet and preparation method thereof | |
| CN105014260A (en) | Welding rod and welding method for repair welding of high-strength steel wheel | |
| CN103643161B (en) | Vanadium-titanium ore rotary hearth furnace and feeding temperature wear-resistant blade thereof and manufacture method | |
| CN202074220U (en) | Alloy wear resistant lining plate | |
| CN202048347U (en) | Wear resistance lining plate with well-shaped grid structure | |
| RU101891U1 (en) | Plow plow for dumping |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140611 Termination date: 20180713 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |