CN101592187B - Axle bush and axle sleeve - Google Patents
Axle bush and axle sleeve Download PDFInfo
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- CN101592187B CN101592187B CN2009101598261A CN200910159826A CN101592187B CN 101592187 B CN101592187 B CN 101592187B CN 2009101598261 A CN2009101598261 A CN 2009101598261A CN 200910159826 A CN200910159826 A CN 200910159826A CN 101592187 B CN101592187 B CN 101592187B
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Abstract
The invention discloses an axle bush and an axle sleeve. Both the axle bush and the axle sleeve comprise a matrix and a working surface layer, wherein the working surface layer is made of a cobalt-base alloy, and the cobalt-base alloy comprises the following components in percentage by weight: 10 to 40 percent of Cr, 0.1 to 15 percent of Ni, 0.1 to 15 percent of W, 0.1 to 10 percent of Mo, 0.01 to 5.0 percent of V, 0.01 to 5.0 percent of Ti, 0.01 to 1.5 percent of C, 0.01 to 20 percent of Fe, 0.01 to 5.0 percent of Al, 0.1 to 3.0 percent of Mn, 0.01 to 5.0 percent of Nb, 0.1 to 3.0 percent of Si, and the balance of Co. The axle bush and the axle sleeve are operated under the conditions of hot-dip aluminum-zinc liquid, hot-dip zinc liquid, hot-dip zinc aluminum, hot-dip pure aluminum liquid and the like, and have good heat-resistant fatigue properties such as good durability, enough strength and elongation, low thermal expansion coefficient, low elastic modulus and the like so as to improve the service properties and prolong the service life.
Description
Technical field
The present invention relates to a kind of equipment that is used for hot dipping, more particularly, relate to a kind of bearing shell and axle sleeve of sink roller and stable roller.
Background technique
Or immersion is owing to the manufacturing efficiency height, so it has obtained using comparatively widely in metallurgical and Coated Steel industry.Or immersion comprises that hot-dip aluminizing zinc (GL), hot pure zinc plating (GI), hot dip zinc-aluminium, hot dip fine aluminium etc. are several.
With hot-dip aluminizing zinc technology is example, the interior hot-dip aluminizing zinc plating of zinc aluminum pot roll assembly is stablized roller by sinking roller, preceding stable roller and back and is formed, be installed in respectively on the relatively independent connecting lever, all be immersed in the aluminium zinc liquid (610 ± 5 ℃) of fusion, steel band played the spacing and the stabilization of steel band between guiding, maintenance and the adjusting air knife.Axle sleeve is stablized the axle journal place that the roller two ends are stablized in roller, sinking roller and back before being installed in respectively by welding, is the outer lining of axle journal, plays alternative protective action; Bearing shell is installed in the supporting frame connecting lever, is its liner.Bearing shell and axle sleeve work the slip effect of supporting sinking roller and stable roller high speed rotating in the or immersion process, can stand the skimming wear of at a high speed big load.In addition, the wearing and tearing of bearing shell and axle sleeve have been quickened in the corrosion of plating bath.
Used bearing shell and the axle sleeve of sinking roller and stable roller mostly adopts iron-based material, ceramic material, surface spraying material at present.The iron-based material is not wear-resistant, and working life is shorter, and wear surface is coarse, and deep trench is arranged; Ceramic material in use is easy to because of impact causes cracking, uses unstable; The sprayfused coating thickness of surface spraying material is limited, not wear-resistant.
Summary of the invention
The present invention is intended to solve the above-mentioned problems in the prior art.Therefore, the invention provides a kind of bearing shell and axle sleeve, it has good anti-corrosion, not dry slag, heat-conducting property, enough intensity, specific elongation, less thermal expansion coefficient, low good heat-resistant anti-fatigue parameters such as Young's modulus under the operating conditions of hot-dip aluminizing zinc liquid, heat galvanizing liquid, hot dip zinc-aluminium, hot dip fine aluminium liquid etc.; Compare with axle sleeve with the bearing shell of prior art, life-span and reliable and stable degree improve greatly.
Bearing shell of the present invention and axle sleeve include matrix and working surface layers, wherein, matrix is heat-resisting irons such as stainless steel, working surface layers is a cobalt base alloy, described cobalt base alloy is composed of the following components by weight percentage: 10%～40% Cr, 0.1%～15% Ni, 0.1%～15% W, 0.1%～10% Mo, 0.01%～5.0% V, 0.01%～5.0% Ti, 0.01%～1.5% C, 0.01%～20% Fe, 0.01%～5.0% Al, 0.1%～3.0% Mn, 0.01%～5.0% Nb, 0.1%～3.0% Si, all the other are Co.
According to the present invention, in cobalt base alloy, the weight percentage of Cr is 20%～30%, the weight percentage of Ni is 0.1%～10%, the weight percentage of W is 0.1%～10%, the weight percentage of Mo is 0.1%～5.5%, the weight percentage of V is 0.01%～3.0%, the weight percentage of Ti is 0.01%～3.0%, the weight percentage of Fe is 0.01%～15%, and the weight percentage of Al is 0.01%～3.0%, and the weight percentage of Mn is 0.1%～2.0%, the weight percentage of Nb is 0.01%～3.0%, and the weight percentage of Si is 0.1%～2.0%.The thickness of working surface layers can be 0.01%～60% of matrix and working surface layers total thickness.Matrix can be heat-resisting iron, and heat-resisting iron can be Ferritic Stainless Steel, Austenitic Stainless Steel or austenite-ferrite two phase stainless steel.
The invention has the beneficial effects as follows, bearing shell and axle sleeve top layer working surface adopt cobalt base alloy, under the corrosion and abrasive conditions of liquid metal, have corrosion-resistant, intensity good, advantage such as specific elongation, thermal expansion coefficient is lower, the heat-resistant anti-fatigue performance is good, wear-resistant, long service life preferably, improve a lot working life than existing bearing shell and axle sleeve.
Description of drawings
Fig. 1 is the structural representation that intercepts vertically according to bearing shell of the present invention or axle sleeve.
Fig. 2 is the metallographic structure schematic representation that intercepts vertically according to bearing shell of the present invention or axle sleeve.
Fig. 3 cuts open into semicircular structural representation according to bearing shell of the present invention or axle sleeve along direction perpendicular to axial direction.
Fig. 4 is the structural representation that adds flange according to sleeve end of the present invention.
Fig. 5 is the structural representation that adds flange and end cap according to sleeve end of the present invention.
Fig. 6 A is the corrosion proof photo that illustrates according to bearing shell of the present invention or axle sleeve.
Fig. 6 B illustrates according to the bearing shell of prior art or the corrosion proof photo of axle sleeve.
Fig. 7 A and Fig. 7 B are the photos according to the wear resistance of axle sleeve of the present invention.
Fig. 8 is the photo according to the wear resistance of the bearing shell of the iron-based material of prior art and axle sleeve.
Fig. 9 is the photo according to the wear resistance of the axle sleeve of the surface spraying of prior art.
Embodiment
Describe the present invention below in conjunction with accompanying drawing.Hereinafter, unless stated otherwise, otherwise the content of various materials all by weight percentage.The zone that illustrates in the drawings is actually schematically, and their shape is not intended to illustrate the true form in the zone of device, also is not intended to limit the scope of the invention.
In the present invention, the sinking roller of used for hot dip galvanizing and the bearing shell of stable roller can be identical in material and configuration aspects with axle sleeve, therefore, will be that example is explained the present invention in detail with the bearing shell of sinking roller and stable roller hereinafter.
Bearing shell according to the present invention comprises matrix and the working surface layers that is positioned on the matrix.According to the present invention, the matrix of bearing shell can be iron, for example, and heat-resistance stainless steels such as Ferritic Stainless Steel, Austenitic Stainless Steel, austenite-ferrite two phase stainless steel.Matrix plays supporting structure, and the matrix adopting iron has also reduced cost simultaneously.
Material according to the working surface layers of bearing shell of the present invention is a cobalt base alloy.The thickness of working surface layers is 0.01%～60% of matrix and working surface layers total thickness, to satisfy the requirement that consumption such as working surface layers wearing and tearing are used.By weight percentage, cobalt base alloy is composed of the following components: 10%～40% Cr, 0.1%～15% Ni, 0.1%～15% W, 0.1%～10% Mo, 0.01%～5.0% V, 0.01%～5.0% Ti, 0.01%～1.5% C, 0.01%～20% Fe, 0.01%～5.0% Al, 0.1%～3.0% Mn, 0.01%～5.0% Nb, 0.1%～3.0% Si, all the other are Co.Below, will explain the concrete effect of each component in detail.
Chromium (Cr) is the important alloying element of cobalt base alloy, and high Cr content guarantees the oxidative stability and the corrosion resistance of alloy.Cr and Co can form a series of different tissues structures mutually and intermetallic compounds, Cr and C form Cr easily simultaneously
7C
3, Cr
23C
6Carbide reinforced phase and solution strengthening matrix, Cr can significantly improve the room temperature and the mechanical behavior under high temperature of cobalt base alloy.Cr content is crossed the low resistance to high temperature corrosion performance that will reduce cobalt base alloy, and the Cr too high levels will reduce the creep rupture strength of cobalt base alloy.In the present invention, preferably, the content of Cr is 10%～40% by weight in the cobalt base alloy.More preferably, take into account room temperature and mechanicals behavior under high temperature such as corrosion resistance, resistance to high temperature corrosion performance, creep rupture strength, Cr content is decided to be 20%～30%.
Nickel (Ni) solid solution well in the Co matrix is the essential element as stable alpha-Co and fault quantity in cobalt base alloy, and might form Co in cobalt base alloy
3Ni and CoNi
3Ordered phase.Ni can improve the toughness of cobalt base alloy, but can not improve the intensity of cobalt base alloy, no invigoration effect.In the present invention, preferably, the content of Ni is 0.1%～15% by weight in the cobalt base alloy.If the content of Ni, does not then have its due effect less than 0.1%; If the content of Ni surpasses 15%, then reduce the intensity of cobalt base alloy to a certain extent.More preferably, Ni content is 0.1%～10% by weight.
Tungsten (W) can promote carbide form to strengthen the second phase invigoration effect, and itself again can the solution strengthening matrix, is the solution strengthening element.Co and W can form WCo
3, W
6Co
7Phase in the middle of two kinds.Along with variation of temperature, the solubility of W changes.In the present invention, preferably, the content of W is 0.1%～15% by weight.If W content＜0.1%, the promotion carbide that then can not play W forms the invigoration effect of strengthening second phase; If W content＞15% then has the rough sledding that increases fragility.More preferably, W content is 0.1%～10%.
Molybdenum (Mo) also can promote carbide form to strengthen the second phase invigoration effect, and is similar with the effect of W, and itself also can the solution strengthening matrix, is the solution strengthening element.In the present invention, preferably, Mo content is 0.1%～10% by weight.If Mo content＜0.1%, the promotion carbide that then can not play Mo forms the invigoration effect of strengthening second phase; If Mo content＞10% then has the rough sledding that increases fragility.More preferably, Mo content is 0.1%～5.5%.
The solid solution of vanadium (V) element and precipitation strength matrix, and the cobalt base alloy resistance to heat is improved significantly.V can reduce the generation that alloy is the hot crack of hot stage to a certain extent before cool to room temperature simultaneously, promptly avoids cracking to a certain extent.In the present invention, V content is 0.01%～5.0% by weight.If V content＜0.01%, the effect such as matrix of then can not having played solid solution and precipitation strength; If V content＞5.0% then generates the precipitates such as carbide of too much V, be unfavorable for the raising of combination property.More preferably, V content is 0.01%～3.0%.
The solid solution of titanium (Ti) element and precipitation strength matrix, and the resistance to heat of cobalt base alloy is improved significantly.In the present invention, Ti content is 0.01%～5.0% by weight.If Ti content＜0.01%, the effect such as matrix of then can not having played solid solution and precipitation strength; If Ti content＞5.0% then generates the precipitate of too much Ti, be unfavorable for the raising of combination property.More preferably, Ti content is 0.01%～3.0%.
Carbon (C) forms carbide with alloying element such as Cr, W, the Mo etc. of above adding, makes cobalt base alloy obtain certain tissue and intensity.In the present invention, C content is 0.01%～1.5% by weight.If C content＜0.01% then can not form carbide, influence its tissue and intensity; If C content＞1.5% then forms too much carbide, be unfavorable for its combination property.
Iron (Fe) is the element of strong stable alpha-Co, and γ-Fe and infinitely solid solution of α-Co.Descend along with iron-holder increases hardness as, cobalt base alloy, magnetic conductivity increases, and Fe promotes intermetallic compounds σ in the cobalt base alloy to reach the generation of skeleton shape carbide mutually.In the present invention, preferably, the content of Fe is 0.01%～20% by weight.If Fe content＜0.01% does not then have its corresponding effect; If Fe content＞20% then promotes to generate in the cobalt base alloy too much intermetallic compounds σ and reaches skeleton shape carbide mutually.More preferably, Fe content is 0.01%～15%.
Aluminium (Al) has deoxidation, anti-oxidant, solution strengthening effect.In the present invention, Al content is 0.01%～5.0% by weight.If Al content＜0.01% does not then have deoxidation, anti-oxidant, solution strengthening effect; If Al content＞5.0% then is unfavorable for the raising of combination property.More preferably, Al content is 0.01%～3.0%.
Manganese (Mn) improves the flowability and the castability of cobalt base alloy, can play deoxidation, slag making.In the present invention, Mn content is 0.1%～3.0% by weight.If Mn content＜0.01% does not then have the effect of Mn; If Mn content＞3.0% then reduces combination property.More preferably, Mn content is 0.1%～2.0%.
C, N, O in niobium (Nb) and the metal have extremely strong affinity, and the energy crystal grain thinning improves the intensity of metal and improves plasticity and toughness, improves anti-corrosion capacity simultaneously significantly.In the present invention, Nb content is 0.01%～5.0% by weight.If Nb content＜0.01% does not then have the effect of Nb; If Nb content＞5.0% then reduces required combination property, be unfavorable for using.More preferably, Nb content is 0.01%～3.0%.
Silicon (Si) also can improve the flowability and the castability of cobalt base alloy, can play deoxidation, slag making.In the present invention, Si content is 0.1%～3.0% by weight.If Si content＜0.1% does not then have the effect of Si; If Si content＞3.0% has then reduced the intensity of this alloy.More preferably, Si content is 0.1%～2.0%.
Above-mentioned each components contents scope is to obtain by a large amount of experiments for the performance that obtains to expect in the cobalt base alloy.Simultaneously, control that the content of unavoidable impurities element S and P all is no more than 0.07% in the cobalt base alloy.
The same with bearing shell, the axle sleeve of used for hot dip galvanizing sinking roller of the present invention and stable roller comprises matrix and the working surface layers that is positioned on the matrix.Specifically, the matrix of axle sleeve can be iron, for example, and heat-resistance stainless steels such as Ferritic Stainless Steel, Austenitic Stainless Steel, austenite-ferrite two phase stainless steel.Matrix plays supporting structure, and the matrix adopting iron has also reduced cost simultaneously.The material of the working surface layers of axle sleeve is a cobalt base alloy, and the thickness of working surface layers is 0.01%～60% of matrix and working surface layers total thickness, to satisfy the requirement that consumption such as working surface layers wearing and tearing are used.As mentioned above, the used cobalt base alloy of axle sleeve working surface layers is composed of the following components by weight percentage: 10%～40% Cr, 0.1%～15% Ni, 0.1%～15% W, 0.1%～10% Mo, 0.01%～5.0% V, 0.01%～5.0% Ti, 0.01%～1.5% C, 0.01%～20% Fe, 0.01%～5.0% Al, 0.1%～3.0% Mn, 0.01%～5.0% Nb, 0.1%～3.0% Si, all the other are Co.
The present invention obtains the material of the working surface layers of optimal proportion by above composition is made up, and brings corrosion-resistant, wear-resistant and heat-resisting good result thereby cobalt base alloy is bearing shell and axle sleeve.Therefore, prolonged bearing shell and axle sleeve maintain and replace cycle, reduced the replacing number of times, reduced because of changing bearing shell and axle sleeve the resume production a large amount of waste product that brings and the loss of defect ware, thereby improved benefit.
Fig. 1 to Fig. 5 shows the structure according to bearing shell of the present invention or axle sleeve.With reference to Fig. 1, bearing shell or axle sleeve 10 comprise matrix and the working surface layers that is positioned on the matrix, and matrix is the part towards bearing shell or axle sleeve inside, and working surface layers is the part towards bearing shell or axle sleeve outside.
With reference to Fig. 2, layer 11 be the iron-based matrix layer, and layer 13 is working surface layers (cobalt base alloy), and layers 12 is alloy transition layers, i.e. the middle transition alloy-layer that diffuses to form of the metallic element of heterogeneity.
With reference to Fig. 4, added flange 20 in the end of axle sleeve 10, be convenient to install, weld and use, thus the usability of raising axle sleeve.With reference to Fig. 5, added flange 20 and end cap 30 respectively in addition, thereby helped protecting center hole and prevent axial motion, improved the usability of axle sleeve at the two end part of axle sleeve 10.
Below, will come to explain more fully the present invention in conjunction with specific embodiments.
Embodiment 1
The bearing shell and the axle sleeve matrix of sinking roller and stable roller are the 00Cr17Ni14Mo2 stainless steel, and its chemical composition is C≤0.03wt%, Cr 16wt%～18wt%, Ni 10wt%～14wt%, Mo 2.00wt%～3.00wt%, Mn≤2.00wt%, Si≤1.00wt%; The bearing shell and the axle sleeve working surface layers of sinking roller and stable roller are cobalt base alloy, consisting of of cobalt base alloy: Cr 25wt%, Ni 5wt%, W 3wt%, Mo 3wt%, V 0.1wt%, Ti 0.1wt%, C 0.6wt%, Fe 6wt%, Si 0.5wt%, Mn 0.3wt%, Al 0.5wt%, Nb 1.5wt%, P＜0.07wt%, S＜0.07wt%, all the other are Co.
With the bearing shell of embodiment 1 bearing shell and axle sleeve and prior art and axle sleeve (bearing shell of prior art and axle sleeve composition are as follows: C 0.119wt%, Si 0.52wt%, Co 0.10wt%, Cr 15wt%, Mn 0.94wt%, Ni 9.6wt%, Cu 0.23wt%, Mo 2.1wt%, all the other are Fe and impurity element).Use at identical unit, the bearing shell of prior art and the available time of axle sleeve are 3 days～5 days, and the bearing shell of present embodiment and the available time of axle sleeve are more than 15 days.This shows that the bearing shell of present embodiment and the available time of axle sleeve are the bearing shell of prior art and more than 3 times of available time of axle sleeve, promptly the available time of the bearing shell of present embodiment and axle sleeve obviously is longer than the bearing shell of prior art and the available time of axle sleeve.
Embodiment 2
The bearing shell and the axle sleeve matrix of sinking roller and stable roller are 1Cr17Mo ferrite heat-resistance stainless steel material, and its chemical composition is C≤0.12wt%, Cr 16wt%～18wt%, Mo 0.75wt%～1.25wt%, Mn≤0.8wt%, Si≤0.8wt%; The bearing shell and the axle sleeve working surface layers of sinking roller and stable roller are cobalt base alloy, consisting of of cobalt base alloy: Cr 20wt%, Ni 3wt%, W 5wt%, Mo 2wt%, V 0.2wt%, Ti 0.2wt%, C 0.6wt%, Fe 12wt%, Al 0.5wt%, Mn 0.7wt%, Nb 1.0wt%, Si0.4wt%, P＜0.07wt%, S＜0.07wt%, all the other are Co.
With the bearing shell of embodiment 2 bearing shell and axle sleeve and prior art and axle sleeve (bearing shell of prior art and axle sleeve composition are as follows: C 0.176wt%, Si 0.53wt%, Co 0.41wt%, Cr 16wt%, Mn 0.87wt%, Ni 10wt%, Cu 0.19wt%, Mo 1.8wt%, all the other are Fe and impurity element).Use at identical unit, the bearing shell of present embodiment and the available time of axle sleeve are more than 15 days, and the bearing shell of prior art and the available time of axle sleeve are 3 days～5 days.This shows that the bearing shell of present embodiment and the available time of axle sleeve are the bearing shell of prior art and more than 3 times of available time of axle sleeve, promptly the available time of the bearing shell of present embodiment and axle sleeve obviously is longer than the bearing shell of prior art and the available time of axle sleeve.
Embodiment 3
The bearing shell and the axle sleeve matrix of sinking roller and stable roller are austenite-ferrite two phase stainless steel 0Cr18Ni9Cu3, and its chemical composition is C≤0.08wt%, Si≤1.00wt%, Mn≤2.00wt%, P≤0.035wt%, S≤0.030wt%, Ni 8.50wt%～10.50wt%, Cr 17.00wt%～19.00wt%, Cu 3.00wt%～4.00wt%; The bearing shell and the axle sleeve working surface layers of sinking roller and stable roller are cobalt base alloy, consisting of of cobalt base alloy: Cr 26wt%, Ni 3wt%, W 5wt%, Mo 2wt%, V 0.2wt%, Ti 0.2wt%, C 1.5wt%, Fe 12wt%, Al 0.8wt%, Mn 0.7wt%, Nb 1.0wt%, Si1.0wt%, P＜0.07wt%, S＜0.07wt%, all the other are Co.
With the bearing shell of embodiment 3 bearing shell and axle sleeve and prior art and axle sleeve (the axial sleeve of bushing composition of prior art is as follows: C 0.258wt%, Si 0.69wt%, W 0.92wt%, Co 0.26wt%, Cr 18wt%, Mn 1.0wt%, Ni 8.7wt%, Cu 0.37wt%, Mo 1.8wt%, all the other are Fe and impurity element).Use at identical unit, the bearing shell of present embodiment and the available time of axle sleeve are more than 15 days, and the bearing shell of prior art and the available time of axle sleeve are 3 days～5 days.This shows that the bearing shell of present embodiment and the available time of axle sleeve are the bearing shell of prior art and more than 3 times of available time of axle sleeve, promptly the available time of the bearing shell of present embodiment and axle sleeve obviously is longer than the bearing shell of prior art and the available time of axle sleeve.
Fig. 6 A is cobalt base alloy according to the present invention soaks 58 days rear interfaces in the hot-dip aluminizing zinc pot a pattern, and wherein, the left side is a cobalt base alloy, and the right is an aluminium zinc liquid.As can be seen from Figure 6A, the processing tool marks still exist, and the interface is clear.Fig. 6 B is ferrous alloy soaks 1 day rear interface in the hot-dip aluminizing zinc pot a pattern, and wherein, the left side is a ferrous alloy, and the right is an aluminium zinc liquid.As can be seen from Figure 6B, the interface is difficult to because of heavy corrosion distinguish.
Fig. 7 A and Fig. 7 B are the photos according to the wear resistance of the axle sleeve of sinking roller of the present invention.Fig. 7 A and Fig. 7 B show the wear morphology of axle sleeve use after 8 days according to sinking roller of the present invention.As can be seen from Figure 7A, working surface has slight wearing and tearing.As can be seen from Figure 7B, facade thickness does not have attenuate.
About Fig. 8, the left side of photo and the middle pattern that shows iron-based material use rear axle housing wearing and tearing in 4 days, the right of photo shows the pattern that the iron-based material is used bearing bush abrasion after 4 days.As can be seen from Figure 8, serious wearing and tearing promptly appear in bearing shell and the axle sleeve according to the use iron-based material of prior art after the use of short time.
Fig. 9 shows the photo that the pattern of axle sleeve after using 5 days of spraying sinking roller afterwards carried out on the surface.As can be seen from Figure 9, serious wearing and tearing promptly appear in the axle sleeve according to prior art after the use of short time.
By as can be known above, working surface layers according to axial sleeve of bushing of the present invention adopts cobalt base alloy, under the corrosion and abrasive conditions of liquid metal, it is good to have intensity, characteristics such as specific elongation better, thermal expansion coefficient is lower, the heat-resistant anti-fatigue performance is good, wear-resistant, long service life, wear surface are level and smooth have bigger improvement than existing axial sleeve of bushing.
Claims (10)
1. bearing shell, described bearing shell comprises matrix and working surface layers, it is characterized in that, described working surface layers is a cobalt base alloy, described cobalt base alloy is composed of the following components by weight percentage: 10%～40% Cr, 0.1%～15% Ni, 0.1%～15% W, 0.1%～10% Mo, 0.01%～5.0% V, 0.01%～5.0% Ti, 0.01%～1.5% C, 0.01%～20% Fe, 0.01%～5.0% Al, 0.1%～3.0% Mn, 0.01%～5.0% Nb, 0.1%～3.0% Si, be no more than 0.07% S and be no more than 0.07% P, all the other are Co.
2. bearing shell as claimed in claim 1, it is characterized in that, in described cobalt base alloy, the weight percentage of Cr is 20%～30%, the weight percentage of Ni is 0.1%～10%, the weight percentage of W is 0.1%～10%, the weight percentage of Mo is 0.1%～5.5%, the weight percentage of V is 0.01%～3.0%, and the weight percentage of Ti is 0.01%～3.0%, and the weight percentage of Fe is 0.01%～15%, the weight percentage of Al is 0.01%～3.0%, the weight percentage of Mn is 0.1%～2.0%, and the weight percentage of Nb is 0.01%～3.0%, and the weight percentage of Si is 0.1%～2.0%.
3. bearing shell as claimed in claim 1 is characterized in that, the thickness of described working surface layers is 0.01%～60% of matrix and working surface layers total thickness.
4. bearing shell as claimed in claim 1 is characterized in that, described matrix is heat-resisting iron.
5. bearing shell as claimed in claim 4 is characterized in that, described heat-resisting iron is Ferritic Stainless Steel, Austenitic Stainless Steel or austenite-ferrite two phase stainless steel.
6. axle sleeve, described axle sleeve comprises matrix and working surface layers, it is characterized in that, described working surface layers is a cobalt base alloy, described cobalt base alloy is composed of the following components by weight percentage: 10%～40% Cr, 0.1%～15% Ni, 0.1%～15% W, 0.1%～10% Mo, 0.01%～5.0% V, 0.01%～5.0% Ti, 0.01%～1.5% C, 0.01%～20% Fe, 0.01%～5.0% Al, 0.1%～3.0% Mn, 0.01%～5.0% Nb, 0.1%～3.0% Si, be no more than 0.07% S and be no more than 0.07% P, all the other are Co.
7. axle sleeve as claimed in claim 6, it is characterized in that, in described cobalt base alloy, the weight percentage of Cr is 20%～30%, the weight percentage of Ni is 0.1%～10%, the weight percentage of W is 0.1%～10%, the weight percentage of Mo is 0.1%～5.5%, the weight percentage of V is 0.01%～3.0%, and the weight percentage of Ti is 0.01%～3.0%, and the weight percentage of Fe is 0.01%～15%, the weight percentage of Al is 0.01%～3.0%, the weight percentage of Mn is 0.1%～2.0%, and the weight percentage of Nb is 0.01%～3.0%, and the weight percentage of Si is 0.1%～2.0%.
8. axle sleeve as claimed in claim 6 is characterized in that, the thickness of described working surface layers is 0.01%～60% of matrix and working surface layers total thickness.
9. axle sleeve as claimed in claim 6 is characterized in that, described matrix is heat-resisting iron.
10. axle sleeve as claimed in claim 9 is characterized in that, described heat-resisting iron is Ferritic Stainless Steel, Austenitic Stainless Steel or austenite-ferrite two phase stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101598261A CN101592187B (en) | 2009-07-10 | 2009-07-10 | Axle bush and axle sleeve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101598261A CN101592187B (en) | 2009-07-10 | 2009-07-10 | Axle bush and axle sleeve |
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| CN101592187A CN101592187A (en) | 2009-12-02 |
| CN101592187B true CN101592187B (en) | 2011-04-13 |
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| CN2009101598261A Expired - Fee Related CN101592187B (en) | 2009-07-10 | 2009-07-10 | Axle bush and axle sleeve |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014081491A3 (en) * | 2012-08-28 | 2014-10-09 | Questek Innovations Llc | Cobalt alloys |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103451504A (en) * | 2013-08-27 | 2013-12-18 | 苏州长盛机电有限公司 | Cobalt-base alloy |
| US10563695B2 (en) * | 2017-04-14 | 2020-02-18 | Tenneco Inc. | Multi-layered sintered bushings and bearings |
| CN114763609B (en) * | 2021-01-15 | 2023-10-13 | 宝山钢铁股份有限公司 | Wear-resistant shaft sleeve coating and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2014081491A3 (en) * | 2012-08-28 | 2014-10-09 | Questek Innovations Llc | Cobalt alloys |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101592187A (en) | 2009-12-02 |
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