CN102912254B - High temperature abrasion resistant guide plate and preparation method thereof - Google Patents

High temperature abrasion resistant guide plate and preparation method thereof Download PDF

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CN102912254B
CN102912254B CN201210319517.8A CN201210319517A CN102912254B CN 102912254 B CN102912254 B CN 102912254B CN 201210319517 A CN201210319517 A CN 201210319517A CN 102912254 B CN102912254 B CN 102912254B
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particle
chromium
nickel alloy
guide plate
bar
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CN102912254A (en
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鲍崇高
侯书增
邢建东
高义民
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Xian Jiaotong University
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Xian Jiaotong University
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Abstract

A high temperature abrasion resistant guide plate is formed by compounding WC particle rod-shaped strengthening phase and a high chrome-nickel substrate. A honeycomb-shaped structure is formed on a macroscopic view, and a preparation method comprises the following steps of: preparing a high chrome-nickel guide plate, then machining blind holes which are evenly arranged in a work surface layer of the high chrome-nickel guide plate at stagger, placing WC particles and Ni base brazing filler metal in a ball mill for ball milling and mixing, adding phenolic resin and absolute ethyl alcohol in mixture, evenly mixing to press blanks and pellet, then filling obtained powder in the blind holes in the work surface layer of the high chrome-nickel guide plate and pressing to be solid, placing the high chrome-nickel guide plate with pressed powder into a drying oven for drying, placing dried high chrome-nickel guide plate into a vacuum oven or a gas shield oven for burning and brazing, and then conducting furnace cooling to a room temperature. The high temperature abrasion resistant guide plate has the advantages of being high in hardness and good in abrasive resistance and inoxidizability. The preparation method is simple in process, low in cost and high in process stability.

Description

A kind of high temperature resistance wearing and tearing guide plate and preparation method thereof
Technical field
The present invention relates to the preparing technical field of rolling mill guide plate, particularly a kind of high temperature resistance wearing and tearing guide plate and preparation method thereof.
Background technology
Guide plate is one of important auxiliary spare part of Iron And Steel Material Shaped roller mill.They can reach the high temperature billet steel of 900 ℃ with the temperature of rapid movement in process under arms and directly contact, and are bearing the chilling action of high temperature wear, impact, extruding, oxidation and water coolant, and Working environment is extremely severe, and condemnation factor is high.Directly affect output and the production cost of steel the work-ing life of guide plate, therefore, the design of guide plate for a long time and preparation are subject to engineering technical personnel and material supplier author's great attention always.Severe working conditions requires guide plate must possess good hot strength, hardness, impelling strength, wear resistance and high-temperature oxidation resistance and thermal fatigue resistance.At present, domestic most guide plates adopt the monoblock casting of high-chromium-nickel alloy steel to make, and wear resistance is better.But this guide plate because of carbon content high, fragility is large, easy to crack under the impact of red-hot steel billet and the chilling action of water coolant.Emerged in the last few years the guide plate that some matrix materials are made, and obtained in actual applications certain effect, sum up and get up to have three kinds, the first is at the better matrix surface build-up wear-resistant of toughness, heat-resisting alloy layer, as patent ZL91221901.7, ZL 94206064.4 and ZL 200520128846.X; The second is for the method for oozing by casting is at toughness matrix surface complex abrasion-proof, heat-resisting ceramic particle or alloy layer, if publication number is the patent of CN1320494A, CN 102233422A, CN 101195156A, CN1351910A, CN102319747 and CN 101134237A; The third is to prepare double metallic composite material by biliquid composite casting, if publication number is the patent of CN 1706635A.The wearing layer of guide plate surface overlaying is due to thinner thickness, and improve limited work-ing life; Bimetal and ceramic particle strengthen guide plate owing to being that whole layer is compound, have larger unrelieved stress between composite bed and matrix, and guide plate in use composite bed is easy to crack and peel off.In addition, publication number is the preparation method that the patent of CN 101412095A discloses a kind of complex abrasion-proof guide plate, being about to alloy powder plug is preset in casting mold die cavity, then casting matrix metal, alloy powder plug and matrix liquation generation metallurgical reaction, original position is separated out the high hardness compound of a large amount of disperses, solidifies rear formation and in the macroscopic view being embedded in matrix, is bar-shaped wild phase.In prepared complex abrasion-proof guide plate, the bar-shaped wild phase of high rigidity is uniformly distributed in the matrix of good toughness, forms class " honeycomb " shape structure in macroscopic view.The guide plate of this structure has increased the thickness of composite bed, has strengthened interface bond strength, has realized " hard tough coupling " property of wearing composite material, and significantly improve work-ing life.But the stable preparation process of this complex abrasion-proof guide plate is poor, difficult quality guarantee.Particularly teeming temperature requires strictly, excess Temperature, and alloy powder plug caves in, and the too low alloy powder plug of temperature cannot form fine and close wild phase.Therefore the new guide plate preparation method that, development technology is simple, with low cost, technology stability is good is imperative.
Summary of the invention
In order to overcome the shortcoming of above-mentioned prior art, the object of the present invention is to provide a kind of high temperature resistance wearing and tearing guide plate and preparation method thereof, guide plate has that hardness is high, the feature of wear resistance and good in oxidation resistance, and to have technique simple, with low cost for preparation method simultaneously, the advantage that technology stability is high.
In order to achieve the above object, the technical scheme that the present invention takes is:
A kind of high temperature resistance wearing and tearing guide plate, by the bar-shaped wild phase of WC particle and high-chromium-nickel alloy matrix, be composited, the bar-shaped wild phase of WC particle is uniformly distributed in high-chromium-nickel alloy matrix top layer, in macroscopic view, form " honeycomb " shape structure with high-chromium-nickel alloy matrix, the volume fraction that the bar-shaped wild phase of WC particle accounts for high-chromium-nickel alloy matrix top layer is 10 ~ 80%;
The composition weight percent of high-chromium-nickel alloy matrix is: 1.0 ~ 2.0%C, and 3.0 ~ 10.0%Ni, 15 ~ 28%Cr, 0.6 ~ 1.2%Si, 0.6 ~ 1.2%Mn, <0.05%S, <0.05%P, surplus is Fe;
The bar-shaped wild phase of WC particle is comprised of WC particle and Ni base solder, the volume fraction that WC particle accounts for the bar-shaped wild phase of WC particle is 20 ~ 80%, WC particle granularity is 50 ~ 400 orders, and Ni base solder granularity is 200 ~ 800 orders, and the composition weight percent of Ni base solder is: 6.0 ~ 15.0%Cr, 1.5 ~ 3.5%B, 3.0 ~ 5.0%Si, 1.5 ~ 5.0%Fe, 0.06 ~ 0.2%C, surplus is Ni, and the fusing point of Ni base solder is 960 ~ 1100 ℃.
A preparation method for high temperature resistance wearing and tearing guide plate, comprises the following steps:
Step 1, prepares high-chromium-nickel alloy guide plate, and its composition weight percent is: 1.0 ~ 2.0%C, and 3.0 ~ 10.0%Ni, 15 ~ 28%Cr, 0.6 ~ 1.2%Si, 0.6 ~ 1.2%Mn, <0.05%S, <0.05%P, surplus is Fe;
Step 2, the blind hole of then utilizing lathe to process even alternative arrangement on high-chromium-nickel alloy guide plate work top layer, blind hole diameter is 2 ~ 20mm, the degree of depth is 2 ~ 20mm, pitch of holes is 5 ~ 40mm, cleans the greasy dirt of hole wall after blind hole completion of processing with acetone or dehydrated alcohol, then dries up stand-by;
Step 3, WC particle and Ni base solder are put into ball mill ball mill mixing, ball mill mixing carries out under the protection of rare gas element, wherein to account for the volume fraction of compound be 20 ~ 80% to WC particle, rotational speed of ball-mill is 60 ~ 120r/min, Ball-milling Time is 10 ~ 30h, WC particle granularity is 50 ~ 800 orders, and Ni base solder granularity is 200 ~ 800 orders, and the composition weight percent of Ni base solder is: 6.0 ~ 15.0%Cr, 1.5 ~ 3.5%B, 3.0 ~ 5.0%Si, 1.5 ~ 5.0%Fe, 0.06 ~ 0.2%C, surplus is Ni, and the fusing point of Ni base solder is 960 ~ 1100 ℃;
Step 4 adds resol and dehydrated alcohol in gained compound in step 3, mixes rear pressed compact granulation, wherein to account for the proportion of compound be 2 ~ 3% to resol, the proportion that dehydrated alcohol accounts for compound is 5 ~ 10%, and the pressure of granulation is 40 ~ 60Mpa, and the granularity of granulation is 60 ~ 80 orders;
Step 5, then inserts the powder of step 4 gained in the blind hole on high-chromium-nickel alloy guide plate work top layer of step 2 gained and compacting, and pressure is 100 ~ 200Mpa;
Step 6, puts into stoving oven by the high-chromium-nickel alloy guide plate that is pressed into powder and dries, and bake out temperature is 50 ~ 80 ℃, and drying time is 2 ~ 4h;
Step 7, subsequently the high-chromium-nickel alloy guide plate of drying is put in vacuum oven or gas shield stove in fuse soldering, fusing sintering temperature is 1050 ~ 1150 ℃, soaking time 1 ~ 3h is then cooled to 800 ℃ with 2 ~ 4 ℃/min, then stove is chilled to room temperature.
The present invention has the following advantages:
1. the bar-shaped wild phase of high, wear-resisting, the resistant to elevated temperatures WC particle of hardness is uniformly distributed in the high-chromium-nickel alloy matrix that good toughness, resistance to oxidation, hot strength are good, the wild phase of high rigidity and toughness matrix form " honeycomb " shape structure in macroscopic view, have realized " the hard tough coupling " property of matrix material.
2. composite bed thickness is large, and wild phase and substrate combinating strength are high, and composite bed is difficult for spalling, the long service life of guide plate.
Volume fraction and the wild phase volume fraction in composite bed of 3.WC particle in wild phase is adjustable.
4. the diameter of bar-shaped wild phase, the degree of depth and distribute spacing are adjustable.
5. according to the service condition of guide plate and structure formation, can realize part or whole compound.
6. the simple and constant product quality of this preparation method, can realize guide plate scale operation.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of guide plate of the present invention.
The distribution schematic diagram of blind hole in matrix in Fig. 2 embodiment 1 and embodiment 2.
The distribution schematic diagram of blind hole in matrix in Fig. 3 embodiment 3 and embodiment 4.
Embodiment
Below in conjunction with specific embodiments and the drawings, the present invention is described in further detail.
Embodiment 1
As shown in Figure 1, a kind of high temperature resistance wearing and tearing guide plate, by the bar-shaped wild phase 1 of WC particle, be composited with high-chromium-nickel alloy matrix 2, the bar-shaped wild phase 1 of WC particle is uniformly distributed in high-chromium-nickel alloy matrix 2 top layers, in macroscopic view, form " honeycomb " shape structure with high-chromium-nickel alloy matrix 2, the volume fraction that the bar-shaped wild phase 1 of WC particle accounts for high-chromium-nickel alloy matrix 2 top layers is 40%;
The composition weight percent of high-chromium-nickel alloy matrix 2 is: 1.0%C, and 6.0%Ni, 18%Cr, 0.6%Si, 0.8%Mn, <0.05%S, <0.05%P, surplus is Fe;
The bar-shaped wild phase 1 of WC particle is comprised of WC particle and Ni base solder, the volume fraction that WC particle accounts for the bar-shaped wild phase 1 of WC particle is 25%, WC particle granularity is 100 orders, and Ni base solder granularity is 200 orders, and the composition weight percent of Ni base solder is: 6.0%Cr, 2.5%B, 4.0%Si, 3.5%Fe, 0.06%C, surplus is Ni, and the fusing point of Ni base solder is 1050 ℃.
A preparation method for high temperature resistance wearing and tearing guide plate, comprises the following steps:
Step 1, prepares high-chromium-nickel alloy guide plate, and its composition weight percent is: 1.0%C, and 6.0%Ni, 18%Cr, 0.6%Si, 0.8%Mn, <0.05%S, <0.05%P, surplus is Fe;
Step 2, the blind hole of then utilizing lathe to process even alternative arrangement on high-chromium-nickel alloy guide plate work top layer, blind hole diameter is 12mm, the degree of depth is 6mm, and pitch of holes is 18mm, and the distribution in hole as shown in Figure 2, after blind hole completion of processing, with acetone, clean the greasy dirt of hole wall, then dry up stand-by;
Step 3, puts into ball mill ball mill mixing by WC particle and Ni base solder, and ball mill mixing carries out under the protection of rare gas element, wherein to account for the volume fraction of compound be 25% to WC particle, and rotational speed of ball-mill is 100r/min, and Ball-milling Time is 20h, WC particle granularity is 100 orders, and Ni base solder granularity is 200 orders, and the composition weight percent of Ni base solder is: 6.0%Cr, 2.5%B, 4.0%Si, 3.5%Fe, 0.06%C, surplus is Ni, and the fusing point of Ni base solder is 1050 ℃;
Step 4 adds resol and dehydrated alcohol in gained compound in step 3, mixes rear pressed compact granulation, wherein to account for the proportion of compound be 2% to resol, the proportion that dehydrated alcohol accounts for compound is 10%, and the pressure of granulation is 60Mpa, and the granularity of granulation is 60 orders;
Step 5, then inserts the powder of step 4 gained in the blind hole on high-chromium-nickel alloy guide plate work top layer of step 2 gained and compacting, and pressure is 160Mpa;
Step 6, puts into stoving oven by the high-chromium-nickel alloy guide plate that is pressed into powder and dries, and bake out temperature is 80 ℃, and drying time is 2h;
Step 7, subsequently the high-chromium-nickel alloy guide plate of drying is put in vacuum oven and fuses soldering, fusing sintering temperature is 1100 ℃, soaking time 1.5h, in order to reduce the interfacial stress of solder solidification shrinkage generation, first with 3 ℃/min, be cooled to 800 ℃, then stove is chilled to room temperature.
Embodiment 2
As shown in Figure 1, a kind of high temperature resistance wearing and tearing guide plate, by the bar-shaped wild phase 1 of WC particle, be composited with high-chromium-nickel alloy matrix 2, the bar-shaped wild phase 1 of WC particle is uniformly distributed in high-chromium-nickel alloy matrix 2 top layers, in macroscopic view, form " honeycomb " shape structure with high-chromium-nickel alloy matrix 2, the volume fraction that the bar-shaped wild phase 1 of WC particle accounts for high-chromium-nickel alloy matrix 2 top layers is 40%;
The composition weight percent of high-chromium-nickel alloy matrix 2 is: 1.6%C, and 8%Ni, 24%Cr, 0.8%Si, 1.0%Mn, <0.05%S, <0.05%P, surplus is Fe;
The bar-shaped wild phase 1 of WC particle is comprised of WC particle and Ni base solder, the volume fraction that WC particle accounts for the bar-shaped wild phase 1 of WC particle is 35%, WC particle granularity is 200 orders, and Ni base solder granularity is 400 orders, and the composition weight percent of Ni base solder is: 8.0%Cr, 3.0%B, 4.0%Si, 3.0%Fe, 0.1%C, surplus is Ni, and the fusing point of Ni base solder is 1050 ℃.
A preparation method for high temperature resistance wearing and tearing guide plate, comprises the following steps:
Step 1, prepares high-chromium-nickel alloy guide plate, and its composition weight percent is: 1.6%C, and 8%Ni, 24%Cr, 0.8%Si, 1.0%Mn, <0.05%S, <0.05%P, surplus is Fe;
Step 2, the blind hole of then utilizing lathe to process even alternative arrangement on high-chromium-nickel alloy guide plate work top layer, blind hole diameter is 12mm, the degree of depth is 6mm, and pitch of holes is 18mm, and the distribution in hole as shown in Figure 2, after blind hole completion of processing, with acetone, clean the greasy dirt of hole wall, then dry up stand-by;
Step 3, puts into ball mill ball mill mixing by WC particle and Ni base solder, and ball mill mixing carries out under the protection of rare gas element, wherein to account for the volume fraction of compound be 35% to WC particle, and rotational speed of ball-mill is 100r/min, and Ball-milling Time is 20h, WC particle granularity is 200 orders, and Ni base solder granularity is 400 orders, and the composition weight percent of Ni base solder is: 8.0%Cr, 3.0%B, 4.0%Si, 3.0%Fe, 0.1%C, surplus is Ni, and the fusing point of Ni base solder is 1050 ℃;
Step 4 adds resol and dehydrated alcohol in gained compound in step 3, mixes rear pressed compact granulation, wherein to account for the proportion of compound be 3% to resol, the proportion that dehydrated alcohol accounts for compound is 10%, and the pressure of granulation is 60Mpa, and the granularity of granulation is 80 orders;
Step 5, then inserts the powder of step 4 gained in the blind hole on high-chromium-nickel alloy guide plate work top layer of step 2 gained and compacting, and pressure is 160Mpa;
Step 6, puts into stoving oven by the high-chromium-nickel alloy guide plate that is pressed into powder and dries, and bake out temperature is 80 ℃, and drying time is 2h;
Step 7, subsequently the high-chromium-nickel alloy guide plate of drying is put in vacuum oven and fuses soldering, fusing sintering temperature is 1100 ℃, soaking time 1.5h, in order to reduce the interfacial stress of solder solidification shrinkage generation, first with 3 ℃/min, be cooled to 800 ℃, then stove is chilled to room temperature.
Embodiment 3
As shown in Figure 1, a kind of high temperature resistance wearing and tearing guide plate, by the bar-shaped wild phase 1 of WC particle, be composited with high-chromium-nickel alloy matrix 2, the bar-shaped wild phase 1 of WC particle is uniformly distributed in high-chromium-nickel alloy matrix 2 top layers, in macroscopic view, form " honeycomb " shape structure with high-chromium-nickel alloy matrix 2, the volume fraction that the bar-shaped wild phase 1 of WC particle accounts for high-chromium-nickel alloy matrix 2 top layers is 75%;
The composition weight percent of high-chromium-nickel alloy matrix 2 is: 2.0%C, and 10%Ni, 28%Cr, 1.0%Si, 1.2%Mn, <0.05%S, <0.05%P, surplus is Fe;
The bar-shaped wild phase 1 of WC particle is comprised of WC particle and Ni base solder, the volume fraction that WC particle accounts for the bar-shaped wild phase 1 of WC particle is 50%, WC particle granularity is 300 orders, and Ni base solder granularity is 600 orders, and the composition weight percent of Ni base solder is: 14%Cr, 3.5%B, 5.0%Si, 5.0%Fe, 0.2%C, surplus is Ni, and the fusing point of Ni base solder is 1050 ℃.
A preparation method for high temperature resistance wearing and tearing guide plate, comprises the following steps:
Step 1, prepares high-chromium-nickel alloy guide plate, and its composition weight percent is: 2.0%C, and 10%Ni, 28%Cr, 1.0%Si, 1.2%Mn, <0.05%S, <0.05%P, surplus is Fe;
Step 2, the blind hole of then utilizing lathe to process even alternative arrangement on high-chromium-nickel alloy guide plate work top layer, blind hole diameter is 10mm, the degree of depth is 5mm, and pitch of holes is 11mm, and the distribution in hole as shown in Figure 3, after blind hole completion of processing, with acetone, clean the greasy dirt of hole wall, then dry up stand-by;
Step 3, puts into ball mill ball mill mixing by WC particle and Ni base solder, and ball mill mixing carries out under the protection of rare gas element, wherein to account for the volume fraction of compound be 50% to WC particle, and rotational speed of ball-mill is 100r/min, and Ball-milling Time is 20h, WC particle granularity is 300 orders, and Ni base solder granularity is 600 orders, and the composition weight percent of Ni base solder is: 14%Cr, 3.5%B, 5.0%Si, 5.0%Fe, 0.2%C, surplus is Ni, and the fusing point of Ni base solder is 1050 ℃;
Step 4 adds resol and dehydrated alcohol in gained compound in step 3, mixes rear pressed compact granulation, wherein to account for the proportion of compound be 2.5% to resol, the proportion that dehydrated alcohol accounts for compound is 10%, and the pressure of granulation is 60Mpa, and the granularity of granulation is 60 orders;
Step 5, then inserts the powder of step 4 gained in the blind hole on high-chromium-nickel alloy guide plate work top layer of step 2 gained and compacting, and pressure is 160Mpa;
Step 6, puts into stoving oven by the high-chromium-nickel alloy guide plate that is pressed into powder and dries, and bake out temperature is 80 ℃, and drying time is 2h;
Step 7, subsequently the high-chromium-nickel alloy guide plate of drying is put in vacuum oven and fuses soldering, fusing sintering temperature is 1150 ℃, soaking time 1.5h, in order to reduce the interfacial stress of solder solidification shrinkage generation, first with 3 ℃/min, be cooled to 800 ℃, then stove is chilled to room temperature.
Embodiment 4
As shown in Figure 1, a kind of high temperature resistance wearing and tearing guide plate, by the bar-shaped wild phase 1 of WC particle, be composited with high-chromium-nickel alloy matrix 2, the bar-shaped wild phase 1 of WC particle is uniformly distributed in high-chromium-nickel alloy matrix 2 top layers, in macroscopic view, form " honeycomb " shape structure with high-chromium-nickel alloy matrix 2, the volume fraction that the bar-shaped wild phase 1 of WC particle accounts for high-chromium-nickel alloy matrix 2 top layers is 75%;
The composition weight percent of high-chromium-nickel alloy matrix 2 is: 1.2%C, and 4.0%Ni, 20%Cr, 1.0%Si, 1.0%Mn, <0.05%S, <0.05%P, surplus is Fe;
The bar-shaped wild phase 1 of WC particle is comprised of WC particle and Ni base solder, the volume fraction that WC particle accounts for the bar-shaped wild phase 1 of WC particle is 30%, WC particle granularity is 180 orders, and Ni base solder granularity is 300 orders, and the composition weight percent of Ni base solder is: 12.0%Cr, 2.8%B, 4.0%Si, 5.0%Fe, 0.08%C, surplus is Ni, and the fusing point of Ni base solder is 1050 ℃.
A preparation method for high temperature resistance wearing and tearing guide plate, comprises the following steps:
Step 1, prepares high-chromium-nickel alloy guide plate, and its composition weight percent is: 1.2%C, and 4.0%Ni, 20%Cr, 1.0%Si, 1.0%Mn, <0.05%S, <0.05%P, surplus is Fe;
Step 2, the blind hole of then utilizing lathe to process even alternative arrangement on high-chromium-nickel alloy guide plate work top layer, blind hole diameter is 10mm, the degree of depth is 5mm, and pitch of holes is 11mm, and the distribution in hole as shown in Figure 3, after blind hole completion of processing, with acetone, clean the greasy dirt of hole wall, then dry up stand-by;
Step 3, puts into ball mill ball mill mixing by WC particle and Ni base solder, and ball mill mixing carries out under the protection of rare gas element, wherein to account for the volume fraction of compound be 30% to WC particle, and rotational speed of ball-mill is 100r/min, and Ball-milling Time is 20h, WC particle granularity is 180 orders, and Ni base solder granularity is 300 orders, and the composition weight percent of Ni base solder is: 12.0%Cr, 2.8%B, 4.0%Si, 5.0%Fe, 0.08%C, surplus is Ni, and the fusing point of Ni base solder is 1050 ℃;
Step 4 adds resol and dehydrated alcohol in gained compound in step 3, mixes rear pressed compact granulation, wherein to account for the proportion of compound be 3% to resol, the proportion that dehydrated alcohol accounts for compound is 10%, and the pressure of granulation is 60Mpa, and the granularity of granulation is 80 orders;
Step 5, then inserts the powder of step 4 gained in the blind hole on high-chromium-nickel alloy guide plate work top layer of step 2 gained and compacting, and pressure is 160Mpa;
Step 6, puts into stoving oven by the high-chromium-nickel alloy guide plate that is pressed into powder and dries, and bake out temperature is 80 ℃, and drying time is 2h;
Step 7, subsequently the high-chromium-nickel alloy guide plate of drying is put in vacuum oven and fuses soldering, fusing sintering temperature is 1100 ℃, soaking time 1.5h, in order to reduce the interfacial stress of solder solidification shrinkage generation, first with 3 ℃/min, be cooled to 800 ℃, then stove is chilled to room temperature.
Wearing test result shows: in load, be 0.1Mpa, sliding velocity is 1m/s, and temperature is under the operating mode of 600 ℃, and the wear resistance of high temperature resistance wearing and tearing guide plate of the present invention is 2.0 ~ 3.5 times of the conventional high-chromium-nickel alloy guide plate of engineering.

Claims (6)

1. high temperature resistance wearing and tearing guide plate, it is characterized in that: by the bar-shaped wild phase of WC particle and high-chromium-nickel alloy matrix, be composited, the bar-shaped wild phase of WC particle is uniformly distributed in high-chromium-nickel alloy matrix top layer, in macroscopic view, form " honeycomb " shape structure with high-chromium-nickel alloy matrix, the volume fraction that the bar-shaped wild phase of WC particle accounts for high-chromium-nickel alloy matrix top layer is 10~80%;
The composition weight percent of high-chromium-nickel alloy matrix is: 1.0~2.0%C, and 3.0~10.0%Ni, 15~28%Cr, 0.6~1.2%Si, 0.6~1.2%Mn, <0.05%S, <0.05%P, surplus is Fe;
The bar-shaped wild phase of WC particle is comprised of WC particle and Ni base solder, the volume fraction that WC particle accounts for the bar-shaped wild phase of WC particle is 20~80%, WC particle granularity is 50~400 orders, and Ni base solder granularity is 200~800 orders, and the composition weight percent of Ni base solder is: 6.0~15.0%Cr, 1.5~3.5%B, 3.0~5.0%Si, 1.5~5.0%Fe, 0.06~0.2%C, surplus is Ni, and the fusing point of Ni base solder is 960~1100 ℃;
Described " honeycomb " shape structure is to utilize lathe in the blind hole of the even alternative arrangement of high-chromium-nickel alloy guide plate work top layer processing, and blind hole diameter is 2~20mm, and the degree of depth is 2~20mm, and pitch of holes is 5~40mm.
2. a kind of high temperature resistance wearing and tearing guide plate according to claim 1, is characterized in that: its preparation method comprises the following steps:
Step 1, prepares high-chromium-nickel alloy guide plate, and its composition weight percent is: 1.0~2.0%C, and 3.0~10.0%Ni, 15~28%Cr, 0.6~1.2%Si, 0.6~1.2%Mn, <0.05%S, <0.05%P, surplus is Fe;
Step 2, the blind hole of then utilizing lathe to process even alternative arrangement on high-chromium-nickel alloy guide plate work top layer, blind hole diameter is 2~20mm, the degree of depth is 2~20mm, pitch of holes is 5~40mm, cleans the greasy dirt of hole wall after blind hole completion of processing with acetone or dehydrated alcohol, then dries up stand-by;
Step 3, WC particle and Ni base solder are put into ball mill ball mill mixing, ball mill mixing carries out under the protection of rare gas element, wherein to account for the volume fraction of compound be 20~80% to WC particle, rotational speed of ball-mill is 60~120r/min, Ball-milling Time is 10~30h, WC particle granularity is 50~800 orders, and Ni base solder granularity is 200~800 orders, and the composition weight percent of Ni base solder is: 6.0~15.0%Cr, 1.5~3.5%B, 3.0~5.0%Si, 1.5~5.0%Fe, 0.06~0.2%C, surplus is Ni, and the fusing point of Ni base solder is 960~1100 ℃;
Step 4 adds resol and dehydrated alcohol in gained compound in step 3, mixes rear pressed compact granulation, wherein to account for the proportion of compound be 2~3% to resol, the proportion that dehydrated alcohol accounts for compound is 5~10%, and the pressure of granulation is 40~60Mpa, and the granularity of granulation is 60~80 orders;
Step 5, then inserts the powder of step 4 gained in the blind hole on high-chromium-nickel alloy guide plate work top layer of step 2 gained and compacting, and pressure is 100~200Mpa;
Step 6, puts into stoving oven by the high-chromium-nickel alloy guide plate that is pressed into powder and dries, and bake out temperature is 50~80 ℃, and drying time is 2~4h;
Step 7, subsequently the high-chromium-nickel alloy guide plate of drying is put in vacuum oven or gas shield stove in fuse soldering, fusing sintering temperature is 1050~1150 ℃, soaking time 1~3h is then cooled to 800 ℃ with 2~4 ℃/min, then stove is chilled to room temperature.
3. a kind of high temperature resistance wearing and tearing guide plate according to claim 1, it is characterized in that: by the bar-shaped wild phase of WC particle (1) and high-chromium-nickel alloy matrix (2), be composited, the bar-shaped wild phase of WC particle (1) is uniformly distributed in high-chromium-nickel alloy matrix (2) top layer, in macroscopic view, form " honeycomb " shape structure with high-chromium-nickel alloy matrix (2), the volume fraction that the bar-shaped wild phase of WC particle (1) accounts for high-chromium-nickel alloy matrix (2) top layer is 40%;
The composition weight percent of high-chromium-nickel alloy matrix (2) is: 1.0%C, and 6.0%Ni, 18%Cr, 0.6%Si, 0.8%Mn, <0.05%S, <0.05%P, surplus is Fe;
The bar-shaped wild phase of WC particle (1) is comprised of WC particle and Ni base solder, the volume fraction that WC particle accounts for the bar-shaped wild phase of WC particle (1) is 25%, WC particle granularity is 100 orders, and Ni base solder granularity is 200 orders, and the composition weight percent of Ni base solder is: 6.0%Cr, 2.5%B, 4.0%Si, 3.5%Fe, 0.06%C, surplus is Ni, and the fusing point of Ni base solder is 1050 ℃.
4. a kind of high temperature resistance wearing and tearing guide plate according to claim 1, it is characterized in that: by the bar-shaped wild phase of WC particle (1) and high-chromium-nickel alloy matrix (2), be composited, the bar-shaped wild phase of WC particle (1) is uniformly distributed in high-chromium-nickel alloy matrix (2) top layer, in macroscopic view, form " honeycomb " shape structure with high-chromium-nickel alloy matrix (2), the volume fraction that the bar-shaped wild phase of WC particle (1) accounts for high-chromium-nickel alloy matrix (2) top layer is 40%;
The composition weight percent of high-chromium-nickel alloy matrix (2) is: 1.6%C, and 8%Ni, 24%Cr, 0.8%Si, 1.0%Mn, <0.05%S, <0.05%P, surplus is Fe;
The bar-shaped wild phase of WC particle (1) is comprised of WC particle and Ni base solder, the volume fraction that WC particle accounts for the bar-shaped wild phase of WC particle (1) is 35%, WC particle granularity is 200 orders, and Ni base solder granularity is 400 orders, and the composition weight percent of Ni base solder is: 8.0%Cr, 3.0%B, 4.0%Si, 3.0%Fe, 0.1%C, surplus is Ni, and the fusing point of Ni base solder is 1050 ℃.
5. a kind of high temperature resistance wearing and tearing guide plate according to claim 1, it is characterized in that: by the bar-shaped wild phase of WC particle (1) and high-chromium-nickel alloy matrix (2), be composited, the bar-shaped wild phase of WC particle (1) is uniformly distributed in high-chromium-nickel alloy matrix (2) top layer, in macroscopic view, form " honeycomb " shape structure with high-chromium-nickel alloy matrix (2), the volume fraction that the bar-shaped wild phase of WC particle (1) accounts for high-chromium-nickel alloy matrix (2) top layer is 75%;
The composition weight percent of high-chromium-nickel alloy matrix (2) is: 2.0%C, and 10%Ni, 28%Cr, 1.0%Si, 1.2%Mn, <0.05%S, <0.05%P, surplus is Fe;
The bar-shaped wild phase of WC particle (1) is comprised of WC particle and Ni base solder, the volume fraction that WC particle accounts for the bar-shaped wild phase of WC particle (1) is 50%, WC particle granularity is 300 orders, and Ni base solder granularity is 600 orders, and the composition weight percent of Ni base solder is: 14%Cr, 3.5%B, 5.0%Si, 5.0%Fe, 0.2%C, surplus is Ni, and the fusing point of Ni base solder is 1050 ℃.
6. a kind of high temperature resistance wearing and tearing guide plate according to claim 1, it is characterized in that: by the bar-shaped wild phase of WC particle (1) and high-chromium-nickel alloy matrix (2), be composited, the bar-shaped wild phase of WC particle (1) is uniformly distributed in high-chromium-nickel alloy matrix (2) top layer, in macroscopic view, form " honeycomb " shape structure with high-chromium-nickel alloy matrix (2), the volume fraction that the bar-shaped wild phase of WC particle (1) accounts for high-chromium-nickel alloy matrix (2) top layer is 75%;
The composition weight percent of high-chromium-nickel alloy matrix (2) is: 1.2%C, and 4.0%Ni, 20%Cr, 1.0%Si, 1.0%Mn, <0.05%S, <0.05%P, surplus is Fe;
The bar-shaped wild phase of WC particle (1) is comprised of WC particle and Ni base solder, the volume fraction that WC particle accounts for the bar-shaped wild phase of WC particle (1) is 30%, WC particle granularity is 180 orders, and Ni base solder granularity is 300 orders, and the composition weight percent of Ni base solder is: 12.0%Cr, 2.8%B, 4.0%Si, 5.0%Fe, 0.08%C, surplus is Ni, and the fusing point of Ni base solder is 1050 ℃.
CN201210319517.8A 2012-08-31 2012-08-31 High temperature abrasion resistant guide plate and preparation method thereof Expired - Fee Related CN102912254B (en)

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