CN105154739B - Wear-resisting and corrosion-resisting alloy for bucket teeth and preparing method of wear-resisting and corrosion-resisting alloy - Google Patents
Wear-resisting and corrosion-resisting alloy for bucket teeth and preparing method of wear-resisting and corrosion-resisting alloy Download PDFInfo
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Abstract
The invention relates to a wear-resisting and corrosion-resisting alloy for bucket teeth and a preparing method of the wear-resisting and corrosion-resisting alloy, and belongs to the technical field of the alloy. The wear-resisting and corrosion-resisting alloy is prepared from, by weight, 70% to 75% of wolframium, 3% to 5% of chromium, 1% to 2% of silicon, 1.1% to 2.2% of strontium, 1.7% to 2.2% of vanadium, 2% to 3% of cobalt, 0.8% to 2% of manganese, 0.2% to 0.3% of cerium and the balance auxiliary materials. The auxiliary materials comprise graphene, nanometer titania and nanometer aluminum oxide, and the mass ratio of the graphene to the nanometer titania to the nanometer aluminum oxide is 3:1-1.2:1.5-1.8. The preparing method is simple, and the prepared wear-resisting and corrosion-resisting alloy for the bucket teeth is of a good wear resisting structure and is high in hardness, good in tenacity and heat resistance, excellent in corrosion resistance and easy to apply and popularize.
Description
Technical field
The invention belongs to technical field of alloy, and in particular to a kind of scraper bucket tooth wearproof corrosion-resistant alloy and its preparation side
Method.
Background technology
Scraper bowl is to refer to the part for being used for excavation installed in excavator, is also bucket, and scraper bowl belongs to structural member class product, by toothholder
The spare and accessory parts compositions such as plate, base plate, side plate, wallboard, earphone plate, backboard, bucket otic placode, bucket ear muff, bucket tooth, toothholder, backplate or bucket angle.
Excavator bucket teeth is the important component on excavator, is also consumable accessory similar to the tooth of people, is by toothholder and tooth
The Dipper Teeth of point composition, the two is connected by bearing pin.Bucket tooth is on active service worn and torn by different degrees of under different operating conditions
And impact, and there is the different degrees of, failure of multi-form.
Crown position first contacting material surface when, due to speed, bucket tooth nose part is subject to stronger to impact.If
The yield strength of bucket tooth is low, it will produce plastic deformation in tip.With the increasing of excavating depth, bucket tooth stressing conditions can be
Change.When bucket tooth cuts material, there is relative motion in bucket tooth with material, and very big forward extrusion power is produced on surface, so that
Larger frictional force is produced between bucket tooth working face and material.If material is harder rock block, concrete etc., not only produce
Very big frictional force, can also produce high temperature, and the result of this process repeated action is different degrees of in the generation of bucket tooth working face
Surface abrasion, and then produce the larger ditch dug with a plow of depth.Meanwhile, perishable material can be usually run into excavation so that crown is rotten
Lose into cellular, then greatly reduce its service life.
At present, most of bucket tooth is in normal working conditions using only 3 days（About 36h or so）Just fail, waste big
The manpower and materials of amount.Therefore the problem that the deficiencies in the prior art are current technical field of alloy urgent need to resolve how is overcome.
The content of the invention
The invention aims to solve the deficiencies in the prior art, there is provided a kind of scraper bucket tooth wearproof corrosion-resistant alloy
And preparation method thereof, the alloy has good wearability tissue, and hardness is high, and good toughness, heat resistance is good, it is easy to popularization and application.
The technical solution adopted by the present invention is as follows：
A kind of scraper bucket tooth wearproof corrosion-resistant alloy, it is characterised in that including according to percent by weight such as the following group
Point：Tungsten 70-75%, chromium 3-5%, silicon 1-2%, strontium 1.1-2.2%, vanadium 1.7-2.2%, cobalt 2-3%, manganese 0.8-2%, cerium 0.2-0.3%, it is remaining
It is auxiliary material to measure；
Wherein described auxiliary material includes Graphene, nano titanium oxide and nano aluminium oxide, described Graphene, nanometer two
The mass ratio of titanium oxide and nano aluminium oxide is 3:1-1.2:1.5-1.8.
It is further preferred that described scraper bucket tooth wearproof corrosion-resistant alloy, including according to percent by weight
Following component：Tungsten 72%, chromium 3%, silicon 1%, strontium 1.5%, vanadium 1.9%, cobalt 2%, manganese 1%, cerium 0.27%, balance of auxiliary material；
Wherein described auxiliary material includes Graphene, nano titanium oxide and nano aluminium oxide, described Graphene, nanometer two
The mass ratio of titanium oxide and nano aluminium oxide is 3:1:1.5.
It is further preferred that described scraper bucket tooth wearproof corrosion-resistant alloy, including according to percent by weight
Following component：Tungsten 74%, chromium 5%, silicon 1.5%, strontium 2%, vanadium 2.2%, cobalt 3%, manganese 2%, cerium 0.23%, balance of auxiliary material；
Wherein described auxiliary material includes Graphene, nano titanium oxide and nano aluminium oxide, described Graphene, nanometer two
The mass ratio of titanium oxide and nano aluminium oxide is 3:1.1:1.7.
The present invention also provides a kind of preparation method of scraper bucket tooth wearproof corrosion-resistant alloy, comprises the following steps：
Step（1）, first by the raw material in addition to cerium and auxiliary material（That is tungsten, chromium, silicon, strontium, vanadium, cobalt and manganese）Mixing, stirs
Mix to well mixed, then frequency electric induction furnace melting in a vacuum, then pour into a mould ingot casting, be milled into Nanoalloy powder；
Step（2）, Graphene, nano titanium oxide and nano aluminium oxide are heated to 2000-2100 DEG C, keeping temperature 5-
After 10min, step is added thereto to（1）Obtained Nanoalloy powder, keeping temperature 0.3-0.5h, while being stirred continuously to mixing
Uniformly, inoculation, then the pouring cast part at 1520-1560 DEG C are then carried out using cerium, then in 800-880 DEG C of oil cooling
Quenching, then 150-190 DEG C of lonneal, cooling, obtain final product.
It is further preferred that the preparation method of described scraper bucket tooth wearproof corrosion-resistant alloy, comprises the following steps：
Step（1）, first the raw material in addition to cerium and auxiliary material is mixed, stir to being well mixed, then in a vacuum
Frequency electric induction furnace melting, then ingot casting is poured into a mould, it is milled into Nanoalloy powder；
Step（2）, after Graphene, nano titanium oxide and nano aluminium oxide are heated into 2050-2070 DEG C, keeping temperature
After 8min, step is added thereto to（1）Obtained Nanoalloy powder, keeping temperature 0.4h, while stirring is to after being well mixed, so
Inoculation, then the pouring cast part at 1540-1550 DEG C are carried out using cerium afterwards, then in 820-850 DEG C of oil quenchinng, so
170-180 DEG C of lonneal, cooling, obtain final product afterwards.
Compared with prior art, its advantage is the present invention：
（1）Preparation method of the present invention is simple, and obtained scraper bucket tooth wearproof corrosion-resistant alloy has good wearability
Tissue, hardness is high, and good toughness, heat resistance is good, it is easy to popularization and application；
（2）Nano titanium oxide and nano aluminium oxide that the present invention is used, can be carried out with Graphene and Nanoalloy powder
Diffusion, is distributed evenly in whole melt, effectively prevent the agglomeration of aluminium carbide.
（3）Using composition of the invention, the decay resistance of alloy, caustic corrosion resistance can be significantly improved, corrosion rate is
0.001-0.002g/(m2·h)（Corrosion resistance is tested：Alloy is immersed into corrosive medium 1%NaOH, is impregnated 1 month）, friction system
Number is about tin bronze 25%；The scraper bucket tooth being made of alloy of the present invention can be used at least 15-20 days under normal operation,
Greatly save manpower and materials.Alloy of the present invention is not limited only to apply on bucket tooth, can be widely used for various needs wear-resisting resistance to
The place of resistant alloy.
Specific embodiment
With reference to embodiment, the present invention is described in further detail.
It will be understood to those of skill in the art that the following example is merely to illustrate the present invention, and should not be regarded as limiting this hair
Bright scope.In the examples where no specific technique or condition is specified, according to the technology or condition described by document in the art
Or carried out according to product description.Agents useful for same or the unreceipted production firm person of instrument, being can be by buying what is obtained
Conventional products.
Embodiment 1
A kind of scraper bucket tooth wearproof corrosion-resistant alloy, it is characterised in that including according to percent by weight such as the following group
Point：Tungsten 70%, chromium 3%, silicon 1%, strontium 1.1%, vanadium 1.7%, cobalt 2%, manganese 0.8%, cerium 0.2%, balance of auxiliary material；
Wherein described auxiliary material includes Graphene, nano titanium oxide and nano aluminium oxide, described Graphene, nanometer two
The mass ratio of titanium oxide and nano aluminium oxide is 3:1-1.2:1.5-1.8.
The preparation method of the present embodiment scraper bucket tooth wearproof corrosion-resistant alloy, comprises the following steps：
Step（1）, first the raw material in addition to cerium and auxiliary material is mixed, stir to being well mixed, then in a vacuum
Frequency electric induction furnace melting, then ingot casting is poured into a mould, it is milled into Nanoalloy powder；
Step（2）, Graphene, nano titanium oxide and nano aluminium oxide are heated to 2000-2100 DEG C, keeping temperature
After 5min, step is added thereto to（1）Obtained Nanoalloy powder, keeping temperature 0.3h, while be stirred continuously to well mixed,
Then inoculation, then the pouring cast part at 1520-1560 DEG C are carried out using cerium, then in 800-880 DEG C of oil quenchinng,
Then 150-190 DEG C of lonneal, cooling, obtain final product.
Embodiment 2
A kind of scraper bucket tooth wearproof corrosion-resistant alloy, it is characterised in that including according to percent by weight such as the following group
Point：Tungsten 75%, chromium 5%, silicon 2%, strontium 2.2%, vanadium 2.2%, cobalt 3%, manganese 2%, cerium 0.3%, balance of auxiliary material；
Wherein described auxiliary material includes Graphene, nano titanium oxide and nano aluminium oxide, described Graphene, nanometer two
The mass ratio of titanium oxide and nano aluminium oxide is 3:1-1.2:1.5-1.8.
The preparation method of the present embodiment scraper bucket tooth wearproof corrosion-resistant alloy, comprises the following steps：
Step（1）, first the raw material in addition to cerium and auxiliary material is mixed, stir to being well mixed, then in a vacuum
Frequency electric induction furnace melting, then ingot casting is poured into a mould, it is milled into Nanoalloy powder；
Step（2）, Graphene, nano titanium oxide and nano aluminium oxide are heated to 2000-2100 DEG C, keeping temperature
After 10min, step is added thereto to（1）Obtained Nanoalloy powder, keeping temperature 0.5h, while being stirred continuously equal to mixing
It is even, inoculation, then the pouring cast part at 1520-1560 DEG C are then carried out using cerium, then quenched in 800-880 DEG C of oil cooling
Fire, then 150-190 DEG C of lonneal, cooling, obtain final product.
Embodiment 3
A kind of scraper bucket tooth wearproof corrosion-resistant alloy, including according to the following component of percent by weight：Tungsten 72%, chromium
3%th, silicon 1%, strontium 1.5%, vanadium 1.9%, cobalt 2%, manganese 1%, cerium 0.27%, balance of auxiliary material；
Wherein described auxiliary material includes Graphene, nano titanium oxide and nano aluminium oxide, described Graphene, nanometer two
The mass ratio of titanium oxide and nano aluminium oxide is 3:1:1.5.
The preparation method of the present embodiment scraper bucket tooth wearproof corrosion-resistant alloy, comprises the following steps：
Step（1）, first the raw material in addition to cerium and auxiliary material is mixed, stir to being well mixed, then in a vacuum
Frequency electric induction furnace melting, then ingot casting is poured into a mould, it is milled into Nanoalloy powder；
Step（2）, after Graphene, nano titanium oxide and nano aluminium oxide are heated into 2050-2070 DEG C, keeping temperature
After 8min, step is added thereto to（1）Obtained Nanoalloy powder, keeping temperature 0.4h, while stirring is to after being well mixed, so
Inoculation, then the pouring cast part at 1540-1550 DEG C are carried out using cerium afterwards, then in 820-850 DEG C of oil quenchinng, so
170-180 DEG C of lonneal, cooling, obtain final product afterwards.
Embodiment 4
A kind of scraper bucket tooth wearproof corrosion-resistant alloy, including according to the following component of percent by weight：Tungsten 74%, chromium
5%th, silicon 1.5%, strontium 2%, vanadium 2.2%, cobalt 3%, manganese 2%, cerium 0.23%, balance of auxiliary material；
Wherein described auxiliary material includes Graphene, nano titanium oxide and nano aluminium oxide, described Graphene, nanometer two
The mass ratio of titanium oxide and nano aluminium oxide is 3:1.1:1.7.
The preparation method of the present embodiment scraper bucket tooth wearproof corrosion-resistant alloy, comprises the following steps：
Step（1）, first the raw material in addition to cerium and auxiliary material is mixed, stir to being well mixed, then in a vacuum
Frequency electric induction furnace melting, then ingot casting is poured into a mould, it is milled into Nanoalloy powder；
Step（2）, after Graphene, nano titanium oxide and nano aluminium oxide are heated into 2050-2070 DEG C, keeping temperature
After 8min, step is added thereto to（1）Obtained Nanoalloy powder, keeping temperature 0.4h, while stirring is to after being well mixed, so
Inoculation, then the pouring cast part at 1540-1550 DEG C are carried out using cerium afterwards, then in 820-850 DEG C of oil quenchinng, so
170-180 DEG C of lonneal, cooling, obtain final product afterwards.
Comparative example 1
Comparative example 1 is that chromium is replaced with into zirconium with the difference of embodiment 4.It is specific as follows：
A kind of scraper bucket tooth wearproof corrosion-resistant alloy, including according to the following component of percent by weight：Tungsten 74%, zirconium
5%th, silicon 1.5%, strontium 2%, vanadium 2.2%, cobalt 3%, manganese 2%, cerium 0.23%, balance of auxiliary material；
Wherein described auxiliary material includes Graphene, nano titanium oxide and nano aluminium oxide, described Graphene, nanometer two
The mass ratio of titanium oxide and nano aluminium oxide is 3:1.1:1.7.
The preparation method of the present embodiment scraper bucket tooth wearproof corrosion-resistant alloy, comprises the following steps：
Step（1）, first the raw material in addition to cerium and auxiliary material is mixed, stir to being well mixed, then in a vacuum
Frequency electric induction furnace melting, then ingot casting is poured into a mould, it is milled into Nanoalloy powder；
Step（2）, after Graphene, nano titanium oxide and nano aluminium oxide are heated into 2050-2070 DEG C, keeping temperature
After 8min, step is added thereto to（1）Obtained Nanoalloy powder, keeping temperature 0.4h, while stirring is to after being well mixed, so
Inoculation, then the pouring cast part at 1540-1550 DEG C are carried out using cerium afterwards, then in 820-850 DEG C of oil quenchinng, so
170-180 DEG C of lonneal, cooling, obtain final product afterwards.
Comparative example 2
Comparative example 2 is that cobalt is replaced with into nickel with the difference of embodiment 4.It is specific as follows：
A kind of scraper bucket tooth wearproof corrosion-resistant alloy, including according to the following component of percent by weight：Tungsten 74%, chromium
5%th, silicon 1.5%, strontium 2%, vanadium 2.2%, nickel 3%, manganese 2%, cerium 0.23%, balance of auxiliary material；
Wherein described auxiliary material includes Graphene, nano titanium oxide and nano aluminium oxide, described Graphene, nanometer two
The mass ratio of titanium oxide and nano aluminium oxide is 3:1.1:1.7.
The preparation method of the present embodiment scraper bucket tooth wearproof corrosion-resistant alloy, comprises the following steps：
Step（1）, first the raw material in addition to cerium and auxiliary material is mixed, stir to being well mixed, then in a vacuum
Frequency electric induction furnace melting, then ingot casting is poured into a mould, it is milled into Nanoalloy powder；
Step（2）, after Graphene, nano titanium oxide and nano aluminium oxide are heated into 2050-2070 DEG C, keeping temperature
After 8min, step is added thereto to（1）Obtained Nanoalloy powder, keeping temperature 0.4h, while stirring is to after being well mixed, so
Inoculation, then the pouring cast part at 1540-1550 DEG C are carried out using cerium afterwards, then in 820-850 DEG C of oil quenchinng, so
170-180 DEG C of lonneal, cooling, obtain final product afterwards.
Comparative example 3
Comparative example 3 is that nano aluminium oxide is replaced with into nano zine oxide with the difference of embodiment 4.It is specific as follows：
A kind of scraper bucket tooth wearproof corrosion-resistant alloy, including according to the following component of percent by weight：Tungsten 74%, chromium
5%th, silicon 1.5%, strontium 2%, vanadium 2.2%, cobalt 3%, manganese 2%, cerium 0.23%, balance of auxiliary material；
Wherein described auxiliary material includes Graphene, nano titanium oxide and nano zine oxide, described Graphene, nanometer two
The mass ratio of titanium oxide and nano aluminium oxide is 3:1.1:1.7.
The preparation method of the present embodiment scraper bucket tooth wearproof corrosion-resistant alloy, comprises the following steps：
Step（1）, first the raw material in addition to cerium and auxiliary material is mixed, stir to being well mixed, then in a vacuum
Frequency electric induction furnace melting, then ingot casting is poured into a mould, it is milled into Nanoalloy powder；
Step（2）, after Graphene, nano titanium oxide and nano zine oxide are heated into 2050-2070 DEG C, keeping temperature
After 8min, step is added thereto to（1）Obtained Nanoalloy powder, keeping temperature 0.4h, while stirring is to after being well mixed, so
Inoculation, then the pouring cast part at 1540-1550 DEG C are carried out using cerium afterwards, then in 820-850 DEG C of oil quenchinng, so
170-180 DEG C of lonneal, cooling, obtain final product afterwards.
Performance detection
Performance detection is carried out to embodiment of the present invention 1-4 products and comparative example 1-3 products, testing result is as shown in table 1.
Table 1
As shown in Table 1, the scraper bucket tooth wear resistant corrosion resistant of embodiment of the present invention 1- embodiments 4 close be respectively provided with it is higher hard
Degree, good toughness and heat resistance.And comparative example effect is inferior to embodiment as seen from Table 1, the embodiment of the present invention 4 is optimal
Embodiment.
General principle of the invention, principal character and advantages of the present invention has been shown and described above.The technology of the industry
Personnel it should be appreciated that the present invention is not limited to the above embodiments, simply explanation described in above-described embodiment and specification this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appending claims and its
Equivalent thereof.
Claims (4)
1. a kind of scraper bucket tooth wearproof corrosion-resistant alloy, it is characterised in that including the following component according to percent by weight：
Tungsten 70-75%, chromium 3-5%, silicon 1-2%, strontium 1.1-2.2%, vanadium 1.7-2.2%, cobalt 2-3%, manganese 0.8-2%, cerium 0.2-0.3%, surplus
It is auxiliary material；
The auxiliary material includes Graphene, nano titanium oxide and nano aluminium oxide, described Graphene, nano titanium oxide and receives
The mass ratio of rice aluminum oxide is 3:1-1.2:1.5-1.8；
Prepared by following method, specifically include following steps：
Step（1）, first the raw material in addition to cerium and auxiliary material is mixed, stirring to well mixed, then frequency induced electricity in a vacuum
Stove melting, then ingot casting is poured into a mould, it is milled into Nanoalloy powder；
Step（2）, Graphene, nano titanium oxide and nano aluminium oxide are heated to 2000-2100 DEG C, keeping temperature 5-
After 10min, step is added thereto to（1）Obtained Nanoalloy powder, keeping temperature 0.3-0.5h, while being stirred continuously to mixing
Uniformly, inoculation, then the pouring cast part at 1520-1560 DEG C are then carried out using cerium, then in 800-880 DEG C of oil cooling
Quenching, then 150-190 DEG C of lonneal, cooling, obtain final product.
2. scraper bucket tooth wearproof corrosion-resistant alloy according to claim 1, it is characterised in that including according to weight percent
The following component of number meter：Tungsten 72%, chromium 3%, silicon 1%, strontium 1.5%, vanadium 1.9%, cobalt 2%, manganese 1%, cerium 0.27%, balance of auxiliary material；
The auxiliary material includes Graphene, nano titanium oxide and nano aluminium oxide, described Graphene, nano titanium oxide and receives
The mass ratio of rice aluminum oxide is 3:1:1.5.
3. scraper bucket tooth wearproof corrosion-resistant alloy according to claim 1, it is characterised in that including according to weight percent
The following component of number meter：Tungsten 74%, chromium 5%, silicon 1.5%, strontium 2%, vanadium 2.2%, cobalt 3%, manganese 2%, cerium 0.23%, balance of auxiliary material；
The auxiliary material includes Graphene, nano titanium oxide and nano aluminium oxide, described Graphene, nano titanium oxide and receives
The mass ratio of rice aluminum oxide is 3:1.1:1.7.
4. scraper bucket tooth wearproof corrosion-resistant alloy according to claim 1, it is characterised in that prepared by following method,
Specifically include following steps：
Step（1）, first the raw material in addition to cerium and auxiliary material is mixed, stirring to well mixed, then frequency induced electricity in a vacuum
Stove melting, then ingot casting is poured into a mould, it is milled into Nanoalloy powder；
Step（2）, after Graphene, nano titanium oxide and nano aluminium oxide are heated into 2050-2070 DEG C, keeping temperature 8min
Afterwards, it is added thereto to step（1）Obtained Nanoalloy powder, keeping temperature 0.4h, while then stirring adopts to after being well mixed
Inoculation, then the pouring cast part at 1540-1550 DEG C are carried out with cerium, then in 820-850 DEG C of oil quenchinng, then
170-180 DEG C of lonneal, cooling, obtains final product.
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| CN105603284B (en) * | 2016-01-14 | 2017-08-25 | 洛阳三睿宝纳米科技有限公司 | A kind of cermet material of the boehmite containing nanoscale and preparation method thereof |
| CN107699196A (en) * | 2017-07-12 | 2018-02-16 | 苏州翠南电子科技有限公司 | A kind of corrosion resistant metal friction material |
| CN109457168B (en) * | 2018-12-24 | 2021-07-06 | 宁波正直科技有限公司 | Gas pipe alloy of household gas stove, preparation method thereof and gas pipe |
| CN112554257B (en) * | 2021-01-08 | 2022-09-20 | 滨州市祥龙节能建筑材料有限公司 | Automatic excavating device used in concrete pavement laying |
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