CN104611627A - High-boron wear-resistant composite hammer head and preparation method thereof - Google Patents
High-boron wear-resistant composite hammer head and preparation method thereof Download PDFInfo
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- CN104611627A CN104611627A CN201510037938.5A CN201510037938A CN104611627A CN 104611627 A CN104611627 A CN 104611627A CN 201510037938 A CN201510037938 A CN 201510037938A CN 104611627 A CN104611627 A CN 104611627A
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 58
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Abstract
The invention discloses a high-boron wear-resistant composite hammer head and a preparation method thereof, and belongs to the technical field of wear-resistant materials. A hammer end is made of high-boron wear-resistant alloy; a hammer handle is made of low-carbon bainite steel. The preparation method comprises the following steps: performing sand removal and polishing on the hammer handle, performing sandblast texturing on a part contacted with the hammer end, performing immersion cleaning by dilute hydrochloric acid, removing impurities and oxide skin on a surface, rinsing in alcohol, taking out, naturally drying, coating the surface with borax, putting the hammer handle into a casting mould, and pouring molten high-boron wear-resistant alloy to obtain the high-boron wear-resistant composite hammer head which is good in metallurgical bonding property and safe and reliable to use.
Description
Technical field
The invention discloses a kind of composite hammer head and preparation method thereof, particularly a kind of high boron wear-resisting composite hammer head and preparation method thereof, belongs to high-abrasive material technical field.
Technical field
Hammer mill is the widely used production units of industrial sector such as building materials, mine, electric power, metallurgy, chemical fertilizer, and tup is the vulnerable part that consumption is very large.Because the working-surface of crushing mechanism contacts with material, produce heavily stressed wearing and tearing, and the material that is broken is generally the hard objects such as rock, metallic ore, the wearing and tearing of tup are very serious.Past, factory generally adopted high mangaenese steel to manufacture tup, but its wear resisting property does not still reach requirement under many working conditions, and such as carbon containing 1.0%-1.3%, high mangaenese steel containing manganese 10%-13%, the performance after water-tenacity treatment is: σ
s=392-441Mpa, σ
b=784-981Mpa, HB=180-190, can find out, high mangaenese steel σ
s/ σ
bratio is less, deformation will occur under little load.And common high mangaenese steel tup, under low shock stress effect, tup top layer drawing hardening effect is poor, wearing and tearing generating process is that the shock of particulate makes surperficial skim metal plastic deformation, multiformed material breaks peels off, meanwhile, during the tup surface contact of abrasive grain and high-speed cruising, abrasive particle kinetic energy is heat energy, and material softening is even torn by adhesion.In the last few years, rich chromium cast iron had the trend replacing high mangaenese steel manufacture wear part gradually on many mining equipments, and also achieved successfully in many applications, but directly manufacture tup, fragility is large, very easily ruptures, affect the safe operation of crusher in using.
In order to improve tup work-ing life, Chinese invention patent CN104213035 discloses a kind of double-fluid double metal composite hammer head and casting technique thereof, it takes plane vertical pouring, have two pouring basins, top is provided with rising head, and tup part is provided with chill, allow this molten metal rapid solidification, make its dense structure, sand mold is from sand mold, pours into a mould tup after first pouring into a mould hammer handle; When low alloy steel is poured into specified location, namely note is stopped to water, stop the several seconds, the several seconds is stopped again after adding the alterant got ready, when molten steel reaches 900 DEG C, then from another sprue gate cast high alloy iron, until water full rising head, unpack again after being fully cooled to room temperature, after sand removal polishing, deliver to thermal treatment.This invention is by the manufacture craft of composition metal, utilize and wear-resistingly can manufacture tup by the good material of shock resistance, improve the work-ing life of tup, the good material of toughness is utilized to manufacture hammer handle, improve the impact resistance of hammer handle, utilize the performance of two kinds of differing materials to meet the service requirements of tup and hammer handle, thus tup over-all properties is improved greatly.
Chinese invention patent CN104164609 also discloses a kind of hammer mill composite hammer, comprise hammer handle and hammer tip, hammer handle is high mangaenese steel, hammer tip is rich chromium cast iron, and each composition and weight percent are: C:3.0-3.1%, Mn:1.4-1.5%, Cr:24.6-25%, Cu:0.05-0.06%, Si:1.24-1.28%, Mo:0.3-0.4%, B:0.04-0.05%, Re:0.4-0.6%, S :≤0.02%, P :≤0.02%; Surplus is Fe.This invention hammer handle adopts high mangaenese steel, has enough toughness; Hammer tip adopts rich chromium cast iron, has enough hardness, wear resistance; By complete processings such as rational formula design, melting, rotten, cast, deoxidations, hammer tip is allowed to have good wear resistance, hardness, intensity, erosion resistance, toughness, by the control of pouring time, sand mold temperature, prevent the generation of shrinkage porosite, shrinkage cavity, also improve toughness and the wear resistance of hammer tip, shore A type hardness tester>=62 degree, surface, impact value>=8.0J/cm
2, work-ing life is 12000-13000 hours.
Chinese invention patent CN104209163 also discloses a kind of Compound wear-resisting hammer and preparation method thereof, first adopt the hammer handle position of castmethod casting composite hammer head, the chemical constitution of hammer handle and mass percent thereof are: 0.26 ~ 0.35C, 0.25 ~ 0.45Si, 0.60 ~ 0.80Mn, 0.08 ~ 0.15N, 1.0 ~ 1.2Cr, 0.015 ~ 0.030Al, 0.008 ~ 0.016Ca, S<0.03, P<0.04, surplus Fe.The combining site of hammer handle and tup carries out sandblast texturing process, and make hammer handle surfaceness reach 65 ~ 100 μm, then composite wear-resisting alloy, composite hammer head hardness is high, wear resistance good.
Chinese invention patent CN104152816 also discloses a kind of Large Crusher tup, comprises the chemical composition of following weight percent: C2.2-3.2%, Cr18-22%, Si0.3-0.9%, Mn1.0-2.0%, Ni0.3-1.0%, V≤0.3%, Nb≤0.2%, W0.1-0.5%, S≤0.025%, P≤0.025%, Zr0.05-0.2%, surplus is iron.This invention raw material is easy to get, and making method is simple, and rationally, long service life, has very high intensity, toughness, wear resistance and anti-impact force, be applicable to Large Crusher this invention formula, decreases the frequency that factory changes tup, reduces labour intensity.
Chinese invention patent CN104141096 also discloses a kind of preparation method of hammer mill alloy tup, it is characterized in that: comprise smelting, casting and thermal treatment, described smelting process is: the mixture (1) putting into rhombspar, bauxitic clay, lime and crude aluminum at furnace bottom; (2) add steel scrap and start heating, steel scrap is all dissolved; (3) ferrochrome is all added; (4) when furnace temperature rises to 1500 degrees Celsius, add ferromanganese, molybdenum-iron, vanadium iron, electrolytic copper, ferronickel, ferro-boron, ferrotianium and rhenium iron, remove waste residue; (5), when furnace temperature rises to more than 1550 degrees Celsius, add ferrosilicon, again remove waste residue; (6) molten iron is come out of the stove and is transported to hot metal ladle, continues to remove waste residue; (7) cast when molten iron temperature is at 1300 ~ 1350 degrees Celsius.
Chinese invention patent CN 104128231 also discloses a kind of crusher and impacts tup and production technique, crusher impacts tup and comprises the shank (1) of tup and the head (2) of tup, the head (2) of tup is embedded with hard alloy bar (3), is connected between hard alloy bar (3) by bracing frame (4); Impact tup and adopt alloy rich chromium cast iron, make tup have good wear resistance, and hammer handle adopts the trade mark to be the section steel manufacture of 35, makes it have enough obdurabilities, overcome the shortcoming that single-material makes ram hammer; Impacting tup working face is on the basis of alloy rich chromium cast iron, then castingin alloy hard alloy bar, and form hard combination, so that bring up to more than 20h from 6 original ~ 12h the work-ing life of impacting tup, economic and social benefit increases substantially.
Chinese invention patent CN10399322 also discloses a kind of Medium Manganese Steel grinder hammerhead and preparation method thereof, comprise the chemical composition of following weight percent: carbon 0.65-1.15%, silicon 0.1-0.8%, manganese 5-10%, titanium 0.05-0.2%, aluminium 0.1-0.5%, nitrogen 0.015-0.04%, sulphur 0.015-0.08%, phosphorus 0.015-0.08%, cerium 0.1-0.36%, RE0.005-0.2%, surplus is iron.This invention by reducing the content of manganese carbon, and adjusts the coupling of manganese carbon, and obtain the Medium Manganese Steel of more stable austenite structure, strongly impacting under working condition, having enough obdurabilities, its wear resistance is good; This invention manufacture craft is simple, and quality can stability contorting; This invention adds the addition of C e, improves the bonding strength of tup; This invention good toughness, intensity is high, long service life.
Chinese invention patent CN 103993217 also discloses Large Crusher tup and preparation method thereof, comprises the chemical composition of following weight percent: carbon 2.2-3.2%, chromium 15-20%, silicon 0.3-0.7%, manganese 0.3-1.0%, molybdenum 1.3-2.0%, nickel 0.3-1.0%, cobalt 0.3-1.0%, vanadium 0-0.3%, titanium 0-0.2%, tungsten 0.1-0.5%, sulphur 0.005-0.025%, phosphorus 0.005-0.025%, RE0.05-0.2%, surplus is iron.Rationally, make simple, long service life, has very high intensity, toughness, wear resistance and anti-impact force to this invention formula, and decrease the frequency that factory changes tup, reduce labour intensity, this invention raw material is easy to get, and making method is simple, has effectively saved the energy.
Chinese invention patent CN 103981465 public affairs have also opened a kind of high mangaenese steel tup and preparation method thereof, each component and weight percent thereof are: C:0.2 ~ 2.0%, Si:1.1 ~ 1.6%, Mn:10 ~ 17%, P :≤0.04%, S :≤0.05%, Ni:0.01 ~ 0.09%, Mo:0.1 ~ 0.6%, Cr:2 ~ 8%; Surplus is Fe.High mangaenese steel tup in this invention compared to existing technology, hardness is high, HB>=250, impelling strength>=130J/cm
2, cost performance is high.
But mainly there is the deficiency that wear resistance and obdurability are difficult to take into account and tup manufacturing cost is high in above-mentioned grinder hammerhead.
Summary of the invention
The present invention is using the high-boron wear-resistant alloy of cheapness as hammer tip material, using the good low-carbon bainite steel of obdurability as hammer handle material, by hammer tip and hammer handle by liquid-solid castmethod, realize bimetal metallurgy and combine, guarantee long lifetime that composite hammer head uses and safe and reliable.
The object of the invention can be realized by following technological measure:
(1) elder generation's melting hammer handle material low-carbon bainite steel in electric furnace, chemical constitution and the massfraction thereof of hammer handle material low-carbon bainite steel are: 0.18 ~ 0.24%C, 2.85 ~ 3.00%Mn, 1.30 ~ 1.60%Si, 0.02 ~ 0.06%N, 0.003 ~ 0.006%B, 0.03 ~ 0.07%Nb, 0.008 ~ 0.015%Ca, 0.008 ~ 0.015%Ba, 0.02 ~ 0.05%Y, <0.03%S, <0.04%P, surplus Fe, and in casting mold, pour into low-carbon bainite steel hammer handle prefabricated component; Treat and hammer tip contact site at low-carbon bainite steel hammer handle prefabricated component, directly cast out the manhole of two diameter phi 20 ~ 35mm, manhole between centers 100 ~ 130mm, manhole is positioned on hammer handle prefabricated component central axis, and the axle of manhole vertical hammer handle prefabricated component central shaft;
(2) be with the low-carbon bainite steel hammer handle prefabricated component of manhole through clear husky, after polishing, treat and first carry out sandblast texturing with hammer tip contact site, its surfaceness is made to reach 250 ~ 350 μm, then embathe with dilute hydrochloric acid, removing surface impurity and oxide skin, and in alcohol rinsed clean, take out seasoning, again at its surface-coated one deck borax, borax thickness preferably 1.0 ~ 1.5mm, then hammer handle prefabricated component is placed in casting mold, and pour into a mould hammer tip material high-boron wear-resistant alloy liquation, chemical constitution and the massfraction thereof of hammer tip material high-boron wear-resistant alloy liquation are: 1.2 ~ 1.6%B, 0.8 ~ 1.0%C, 6.0 ~ 6.5%Cr, 0.2 ~ 0.5%Si, 2.2 ~ 2.4%Mn, 0.60 ~ 0.75%Ti, 0.08 ~ 0.15%Ce, 1.0 ~ 1.2%Al, S<0.035%, P<0.040%, surplus Fe, high-boron wear-resistant alloy liquation teeming temperature 1480 ~ 1520 DEG C, after high-boron wear-resistant alloy liquation is poured 4 ~ 8 hours, air cooling foundry goods of unpacking, foundry goods is after sand removal, polishing, in process furnace, be heated to 920 ~ 950 DEG C, be incubated after 1 ~ 3 hour, air-cooled foundry goods of coming out of the stove, when temperature is down to below 150 DEG C, again foundry goods is entered stove and be heated to 420 ~ 450 DEG C, be incubated after 8 ~ 12 hours, stove is chilled to temperature lower than after 120 DEG C, come out of the stove air cooling to room temperature, high boron wear-resisting composite hammer head product can be obtained.
The performance of high boron wear-resisting composite hammer head depends on performance and the complex method thereof of hammer handle and hammer tip, and the performance of hammer handle and hammer tip depends on its chemical constitution and thermal treatment process thereof:
The hammer handle of composite hammer head of the present invention adopts the low-carbon bainite steel that obdurability is good, carbon is the principal element determining cast steel intensity, within the specific limits, carbon content is higher, after air cooling, the intensity of steel is higher, too high carbon content can the serious toughness reducing steel, the present invention by carbon content control 0.18 ~ 0.24%.Manganese can postpone high temperature transformation significantly, improve the hardening capacity of steel, when Fe content is higher, perlite can be made to be separated with bainite transformation curve, and make bainite transformation curve be positioned at the left side of perlitic transformation curve, promote air-colled bainite organization formation, therefore Fe content is controlled 2.85 ~ 3.00%.A certain amount of silicon can suppress the precipitation of carbide, along with the increase of Si content, Si makes the middle temperature transformation temperature of CCT curve reduce, reduce M-A island size, after Si content reaches 1.4%, Bs point no longer reduces, and Si content more than 1.7% after, after high tempering, the toughness of steel can not get significantly improving, and controls silicone content 1.30 ~ 1.60%.The fine particle that trace rare-earth Y and liquid reactant metal generate, there is the effect of accelerated solidification forming core, surfactivity Rare Earth Y element forms adatom film at the plane of crystal of flowing, reduce the speed of mobile ion, these characteristic energy refinement cast steel crystal grain of Rare Earth Y element, constrained tree dendritic segregation, improves the mechanical property of material.Trace Nb and N has extremely strong avidity, and form with it corresponding very stable compound, these compound particles, can as the crystallization nuclei of cenotype, and therefore Nb and N element have obvious Grain refinement, improves intensity and the toughness of steel.Trace B can improve the hardening capacity of steel, and can promote the formation of bainite.Trace the adding of Ca and Ba, can reduce and add foreign material in steel, and improve inclusion morphology and distribution, be conducive to the intensity and the toughness that improve steel.Low-carbon bainite steel hardness of cast form is low, is less than 22HRC, is conducive to sandblast texturing operation subsequently.
The hammer tip of composite hammer head of the present invention adopts the high boron alloy that wear resistance is good, and the principal element in high boron alloy is boron, and boron and iron chemical combination, can obtain the Fe of high rigidity
2b phase, be conducive to improving Wear Resistance, add-on is too much, Fe
2b phase amount is many, and fragility is large, and cause very easily embrittlement in composite hammer head use procedure, suitable Boron contents is 1.2 ~ 1.6%.Add the chromium of 6.0 ~ 6.5%, utilizing chromium to form high rigidity chromium containing carbide on the one hand, on the other hand, is to improve alloy hardening capacity, the anti-oxidant scaling loss effect added when being also improved material at high temperature quenching of chromium.Add the manganese of 2.2 ~ 2.4%, mainly in order to improve alloy hardening capacity.Add the aluminium of 1.0 ~ 1.2%, carbide and boride suspension can be impelled and isolate distribution, thus reducing alloy fragility.Add 0.60 ~ 0.75%Ti and 0.08 ~ 0.15%Ce, except crystal grain thinning, titanium and boron combine, and generate high rigidity TiB
2particle, is conducive to improving Wear Resistance further.
The present invention, in order to simplify composite hammer head forming technology, in Double-metal composite hammer covering and casting, have employed machinery and makes hammer handle together with hammer tip metal mortise with the mode that metallurgy combines, see Fig. 1.Namely at the position of hammer handle and hammer tip metallographic phase compound, two manholes are cast out, manhole diameter
manhole spacing 100 ~ 130mm, manhole is positioned on hammer handle prefabricated component central axis, and the axle of manhole vertical hammer handle prefabricated component central shaft, after high temperature high-boron wear-resistant alloy liquation pours into, except except the metallurgical binding that the junction of hammer handle and hammer tip reaches certain, just act as two joint pins after flowing into the solidification of molten metal of these two manholes, effectively can prevent coming off and loosening of compound position.
In order to improve the composite quality of hammer handle and hammer tip further, before the cast of high temperature high-boron wear-resistant alloy liquation, by the low-carbon bainite steel hammer handle prefabricated component of band manhole after clear sand, polishing, first sandblast texturing is carried out with hammer tip contact site, its surfaceness is made to reach 250 ~ 350 μm, then embathe with dilute hydrochloric acid, removing surface impurity and oxide skin, and in alcohol rinsed clean, take out seasoning, then at its surface-coated one deck borax, thickness is preferably 1.0 ~ 1.5mm, then hammer handle prefabricated component is placed in casting mold, and pours into a mould high-boron wear-resistant alloy liquation.Borax, at the cast initial stage, can wrap up low-carbon bainite steel hammer handle prefabricated component, reduces degree of oxidation, after borax melted by heat, decomposition reaction occurs simultaneously:
Na
2B
4O
7→2NaBO
2+B
2O
3(1)
Reaction product B
2o
3the oxide film of solubilized hammer handle preform surfaces, purify its surface, improve its wetting ability.Through activation treatment hammer handle prefabricated component when casting mold not thermal pretreatment, be combined well with hammer tip high-boron wear-resistant alloy.
High-boron wear-resistant alloy liquation teeming temperature 1480 ~ 1520 DEG C, after high-boron wear-resistant alloy liquation is poured 4 ~ 8 hours, unpacking air cooling foundry goods, foundry goods is after sand removal, polishing, in process furnace, be heated to 920 ~ 950 DEG C, be incubated after 1 ~ 3 hour, air-cooled foundry goods of coming out of the stove, can guarantee that hammer tip obtains the martensite of high rigidity, hammer handle obtains the good bainite structure of obdurability.When temperature is down to below 150 DEG C, again foundry goods is entered stove and be heated to 420 ~ 450 DEG C, be incubated after 8 ~ 12 hours, stove is chilled to temperature lower than after 120 DEG C, and air cooling of coming out of the stove, to room temperature, can stablize composite hammer head tissue, eliminate internal stress, guarantee the safe handling of composite hammer head.
The present invention compared with prior art, has the following advantages:
1) composite hammer head of the present invention is not containing expensive alloy element such as molybdenum, nickel, vanadium, has lower production cost;
2) composite hammer head of the present invention, hammer handle and hammer tip, in conjunction with firm, can guarantee the safe handling of composite hammer head;
3) the hammer handle intensity of composite hammer head of the present invention high (tensile strength is more than 1200MPa), (impelling strength is greater than 60J/cm to good toughness
2), hammer tip hardness high (hardness is greater than 62HRC), makes improve more than 3 times than high mangaenese steel tup the work-ing life of composite hammer head.
Accompanying drawing explanation
Fig. 1 high boron wear-resisting composite hammer head covering and casting schematic diagram;
1-casting mold, 2-hammer handle prefabricated component (low-carbon bainite steel), 3-cast gate, 4-manhole, 5-die cavity (for pouring into a mould high-boron wear-resistant alloy liquation), 6-rising head.
Embodiment
Be further described the present invention below in conjunction with embodiment, but the present invention is not limited to following examples, Fig. 1 is shown in by high boron wear-resisting composite hammer head covering and casting schematic diagram.
Embodiment 1:
A kind of high boron wear-resisting composite hammer head and preparation method thereof, hammer tip adopts high-boron wear-resistant alloy, and hammer handle adopts low-carbon bainite steel, and hammer tip and hammer handle are by composite casting method, and realize bimetal metallurgy and combine, concrete step of preparation process is:
1. elder generation's melting hammer handle material low-carbon bainite steel in electric furnace, chemical constitution and the massfraction thereof of hammer handle material low-carbon bainite steel are: 0.18%C, 2.97%Mn, 1.34%Si, 0.058%N, 0.004%B, 0.068%Nb, 0.009%Ca, 0.015%Ba, 0.041%Y, 0.018%S, 0.026%P, surplus Fe, and in resin-bonded sand cast form, pour into low-carbon bainite steel hammer handle prefabricated component 2, in low-carbon bainite steel hammer handle prefabricated component 2 and hammer tip contact site, from casting mold, directly cast out two diameters
manhole 4, manhole 4 spacing 100mm, manhole 4 is positioned on hammer handle prefabricated component central axis, and the axle of manhole vertical hammer handle prefabricated component central shaft;
2. the low-carbon bainite steel hammer handle prefabricated component 2 with manhole is through clear sand, after polishing, first sandblast texturing is carried out with hammer tip contact site, its surfaceness is made to reach 250 ~ 350 μm, then embathe with dilute hydrochloric acid, removing surface impurity and oxide skin, and in alcohol rinsed clean, take out seasoning, be the borax of 1.0mm in its surface-coated a layer thickness again, then hammer handle prefabricated component 2 is placed in resin-bonded sand cast form 1, and pour into a mould high-boron wear-resistant alloy liquation, chemical constitution and the massfraction thereof of high-boron wear-resistant alloy liquation are: 1.57%B, 0.81%C, 6.04%Cr, 0.37%Si, 2.20%Mn, 0.75%Ti, 0.09%Ce, 1.17%Al, 0.031%S, 0.037%P, surplus Fe,
3. high-boron wear-resistant alloy liquation teeming temperature 1484 DEG C, high-boron wear-resistant alloy liquation after cast gate 3 is poured 4 hours, unpack air cooling foundry goods, foundry goods, after sand removal, polishing, is heated to 950 DEG C, is incubated after 1 hour in process furnace, to come out of the stove air-cooled foundry goods, when temperature is down to below 150 DEG C, again foundry goods is entered stove and be heated to 450 DEG C, be incubated after 8 hours, stove is chilled to temperature lower than after 120 DEG C, come out of the stove air cooling to room temperature, and can obtain high boron wear-resisting composite hammer head product, its mechanical property is in table 1.
Embodiment 2:
A kind of high boron wear-resisting composite hammer head and preparation method thereof, hammer tip adopts high-boron wear-resistant alloy, and hammer handle adopts low-carbon bainite steel, and hammer tip and hammer handle are by composite casting method, and realize bimetal metallurgy and combine, concrete step of preparation process is:
1. elder generation's melting hammer handle material low-carbon bainite steel in electric furnace, chemical constitution and the massfraction thereof of hammer handle material low-carbon bainite steel are: 0.24%C, 2.86%Mn, 1.55%Si, 0.024%N, 0.006%B, 0.032%Nb, 0.014%Ca, 0.008%Ba, 0.023%Y, 0.020%S, 0.033%P, surplus Fe, and in evaporative pattern casting mold, pour into low-carbon bainite steel hammer handle prefabricated component 2, in low-carbon bainite steel hammer handle prefabricated component 2 and hammer tip contact site, from casting mold, directly cast out two diameters
manhole 4, manhole 4 spacing 130mm, manhole 4 is positioned on hammer handle prefabricated component central axis, and the axle of manhole vertical hammer handle prefabricated component central shaft;
2. the low-carbon bainite steel hammer handle prefabricated component 2 with manhole is through clear sand, after polishing, first sandblast texturing is carried out with hammer tip contact site, its surfaceness is made to reach 250 ~ 350 μm, then embathe with dilute hydrochloric acid, removing surface impurity and oxide skin, and in alcohol rinsed clean, take out seasoning, be the borax of 1.5mm in its surface-coated a layer thickness again, then hammer handle prefabricated component 2 is placed in evaporative pattern casting mold 1, and pour into a mould high-boron wear-resistant alloy liquation, chemical constitution and the massfraction thereof of high-boron wear-resistant alloy liquation are: 1.24%B, 0.99%C, 6.50%Cr, 0.48%Si, 2.38%Mn, 0.62%Ti, 0.14%Ce, 1.03%Al, 0.028%S, 0.033%P, surplus Fe,
3. high-boron wear-resistant alloy liquation teeming temperature 1519 DEG C, high-boron wear-resistant alloy liquation after cast gate 3 is poured 8 hours, unpack air cooling foundry goods, foundry goods, after sand removal, polishing, is heated to 920 DEG C, is incubated after 3 hours in process furnace, to come out of the stove air-cooled foundry goods, when temperature is down to below 150 DEG C, again foundry goods is entered stove and be heated to 420 DEG C, be incubated after 12 hours, stove is chilled to temperature lower than after 120 DEG C, come out of the stove air cooling to room temperature, and can obtain high boron wear-resisting composite hammer head product, its mechanical property is in table 1.
Embodiment 3:
A kind of high boron wear-resisting composite hammer head and preparation method thereof, hammer tip adopts high-boron wear-resistant alloy, and hammer handle adopts low-carbon bainite steel, and hammer tip and hammer handle are by composite casting method, and realize bimetal metallurgy and combine, concrete step of preparation process is:
1. elder generation's melting hammer handle material low-carbon bainite steel in electric furnace, chemical constitution and the massfraction thereof of hammer handle material low-carbon bainite steel are: 0.22%C, 2.91%Mn, 1.39%Si, 0.041%N, 0.005%B, 0.055%Nb, 0.011%Ca, 0.012%Ba, 0.037%Y, 0.019%S, 0.025%P, surplus Fe, and in clay-bonded sand casting mold, pour into low-carbon bainite steel hammer handle prefabricated component 2, in low-carbon bainite steel hammer handle prefabricated component 2 and hammer tip contact site, from casting mold, directly cast out two diameters
manhole 4, manhole 4 spacing 120mm, manhole 4 is positioned on hammer handle prefabricated component central axis, and the axle of manhole vertical hammer handle prefabricated component central shaft;
2. the low-carbon bainite steel hammer handle prefabricated component 2 with manhole is through clear sand, after polishing, first sandblast texturing is carried out with hammer tip contact site, its surfaceness is made to reach 250 ~ 350 μm, then embathe with dilute hydrochloric acid, removing surface impurity and oxide skin, and in alcohol rinsed clean, take out seasoning, be the borax of 1.2mm in its surface-coated a layer thickness again, then hammer handle prefabricated component 2 is placed in clay-bonded sand casting mold 1, and pour into a mould high-boron wear-resistant alloy liquation, chemical constitution and the massfraction thereof of high-boron wear-resistant alloy liquation are: 1.44%B, 0.91%C, 6.30%Cr, 0.29%Si, 2.31%Mn, 0.68%Ti, 0.09%Ce, 1.14%Al, 0.030%S, 0.037%P, surplus Fe,
3. high-boron wear-resistant alloy liquation teeming temperature 1496 DEG C, high-boron wear-resistant alloy liquation after cast gate 3 is poured 6 hours, unpack air cooling foundry goods, foundry goods, after sand removal, polishing, is heated to 940 DEG C, is incubated after 2 hours in process furnace, to come out of the stove air-cooled foundry goods, when temperature is down to below 150 DEG C, again foundry goods is entered stove and be heated to 430 DEG C, be incubated after 10 hours, stove is chilled to temperature lower than after 120 DEG C, come out of the stove air cooling to room temperature, and can obtain high boron wear-resisting composite hammer head product, its mechanical property is in table 1.
Table 1 high boron wear-resisting composite hammer head mechanical property
The hammer handle of composite hammer head of the present invention and hammer tip are firmly metallurgical binding, can guarantee that composite hammer head can not come off in using, composite hammer head of the present invention is not containing molybdenum, nickel, the expensive alloy element such as vanadium, there is lower production cost, the hammer handle intensity of composite hammer head of the present invention is high, good toughness, hammer tip hardness is high, composite hammer head is made to have excellent result of use, for broken iron sand, quartzite, the materials such as Wingdale, the work-ing life of composite hammer head of the present invention improves more than 3 times than high mangaenese steel tup, apply composite hammer head of the present invention, crusher production efficiency can be improved, alleviate labor strength, there is good economic and social benefit.
Claims (3)
1. a preparation method for high boron wear-resisting composite hammer head, is characterized in that, comprises the following steps:
(1) elder generation's melting hammer handle material low-carbon bainite steel in electric furnace, chemical constitution and the massfraction thereof of hammer handle material low-carbon bainite steel are: 0.18 ~ 0.24%C, 2.85 ~ 3.00%Mn, 1.30 ~ 1.60%Si, 0.02 ~ 0.06%N, 0.003 ~ 0.006%B, 0.03 ~ 0.07%Nb, 0.008 ~ 0.015%Ca, 0.008 ~ 0.015%Ba, 0.02 ~ 0.05%Y, <0.03%S, <0.04%P, surplus Fe, and in casting mold, pour into low-carbon bainite steel hammer handle prefabricated component; Treat and hammer tip contact site at low-carbon bainite steel hammer handle prefabricated component, directly cast out two diameters
manhole, manhole between centers 100 ~ 130mm, manhole is positioned on hammer handle prefabricated component central axis, and the axle of manhole vertical hammer handle prefabricated component central shaft;
(2) be with the low-carbon bainite steel hammer handle prefabricated component of manhole through clear husky, after polishing, treat and first carry out sandblast texturing with hammer tip contact site, its surfaceness is made to reach 250 ~ 350 μm, then embathe with dilute hydrochloric acid, removing surface impurity and oxide skin, and in alcohol rinsed clean, take out seasoning, again at its surface-coated one deck borax, then hammer handle prefabricated component is placed in casting mold, and pour into a mould hammer tip material high-boron wear-resistant alloy liquation, chemical constitution and the massfraction thereof of hammer tip material high-boron wear-resistant alloy liquation are: 1.2 ~ 1.6%B, 0.8 ~ 1.0%C, 6.0 ~ 6.5%Cr, 0.2 ~ 0.5%Si, 2.2 ~ 2.4%Mn, 0.60 ~ 0.75%Ti, 0.08 ~ 0.15%Ce, 1.0 ~ 1.2%Al, S<0.035%, P<0.040%, surplus Fe, high-boron wear-resistant alloy liquation teeming temperature 1480 ~ 1520 DEG C, after high-boron wear-resistant alloy liquation is poured 4 ~ 8 hours, unpacking air cooling foundry goods, foundry goods is through sand removal, after polishing, 920 ~ 950 DEG C are heated in process furnace, be incubated after 1 ~ 3 hour, to come out of the stove air-cooled foundry goods, when temperature is down to below 150 DEG C, again foundry goods is entered stove and be heated to 420 ~ 450 DEG C, be incubated after 8 ~ 12 hours, stove is chilled to temperature lower than after 120 DEG C, come out of the stove air cooling to room temperature, high boron wear-resisting composite hammer head can be obtained.
2. according to the method for claim 1, it is characterized in that, borax thickness is 1.0 ~ 1.5mm.
3. according to the high boron wear-resisting composite hammer head that the method for claim 1 or 2 obtains.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105296873A (en) * | 2015-11-13 | 2016-02-03 | 丹阳嘉伟耐磨材料科技有限公司 | Bimetal compound high-toughness, high-boron and high-speed steel hammer and preparing method thereof |
| CN105296872A (en) * | 2015-11-13 | 2016-02-03 | 丹阳嘉伟耐磨材料科技有限公司 | Bimetal composite high-tenacity, high-boron and high-chrome steel hammer and preparing method thereof |
| CN105420619A (en) * | 2015-11-13 | 2016-03-23 | 丹阳嘉伟耐磨材料科技有限公司 | Duplex-metal composite high-toughness high-boron abrasion-resistant steel hammerhead and preparation method thereof |
| CN105537566A (en) * | 2016-02-02 | 2016-05-04 | 天津雅枫科技有限公司 | Crusher hammerhead and casting technological process thereof |
| CN107186199A (en) * | 2016-03-14 | 2017-09-22 | 上海日立电器有限公司 | Gravity foundry technology |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004143504A (en) * | 2002-10-23 | 2004-05-20 | Nippon Steel Corp | Thick steel member having excellent fatigue crack propagating resistance, and production method therefor |
| JP2004256906A (en) * | 2003-02-28 | 2004-09-16 | Nippon Steel Corp | High strength steel sheet with excellent stretch-flange formability and its manufacturing method |
| JP2006316309A (en) * | 2005-05-12 | 2006-11-24 | Nachi Fujikoshi Corp | High wear resistant tough steel having excellent fatigue strength |
| CN100999803A (en) * | 2006-12-22 | 2007-07-18 | 西安交通大学 | High boron wear-resisting casting steel and preparation process thereof |
| CN101134232A (en) * | 2006-08-28 | 2008-03-05 | 张磊 | Technique for producing anticentripetal composite abrasion-proof hammer tools |
| CN201664616U (en) * | 2010-01-15 | 2010-12-08 | 佳木斯大学 | Double-liquid bimetallic composite casting hammer |
| CN103801429A (en) * | 2014-02-19 | 2014-05-21 | 河北科技大学 | Ultra-hard wear-resistance composite hammerhead for hammer crusher and production method thereof |
| CN104128231A (en) * | 2014-06-30 | 2014-11-05 | 洛阳天信重工机械有限公司 | Crusher impact hammer and production process |
-
2015
- 2015-01-26 CN CN201510037938.5A patent/CN104611627B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004143504A (en) * | 2002-10-23 | 2004-05-20 | Nippon Steel Corp | Thick steel member having excellent fatigue crack propagating resistance, and production method therefor |
| JP2004256906A (en) * | 2003-02-28 | 2004-09-16 | Nippon Steel Corp | High strength steel sheet with excellent stretch-flange formability and its manufacturing method |
| JP2006316309A (en) * | 2005-05-12 | 2006-11-24 | Nachi Fujikoshi Corp | High wear resistant tough steel having excellent fatigue strength |
| CN101134232A (en) * | 2006-08-28 | 2008-03-05 | 张磊 | Technique for producing anticentripetal composite abrasion-proof hammer tools |
| CN100999803A (en) * | 2006-12-22 | 2007-07-18 | 西安交通大学 | High boron wear-resisting casting steel and preparation process thereof |
| CN201664616U (en) * | 2010-01-15 | 2010-12-08 | 佳木斯大学 | Double-liquid bimetallic composite casting hammer |
| CN103801429A (en) * | 2014-02-19 | 2014-05-21 | 河北科技大学 | Ultra-hard wear-resistance composite hammerhead for hammer crusher and production method thereof |
| CN104128231A (en) * | 2014-06-30 | 2014-11-05 | 洛阳天信重工机械有限公司 | Crusher impact hammer and production process |
Non-Patent Citations (5)
| Title |
|---|
| 任颂赞等: "《金相分析原理及技术》", 31 August 2013 * |
| 段江涛等: "抗磨Fe-B-C合金材料的研究", 《润滑与密封》 * |
| 符寒光: "高硼抗磨合金研究的新进展", 《铸造技术》 * |
| 符寒光: "高硼铸钢锤头的研究和应用", 《铸造》 * |
| 符寒光等: "高硼低碳合金(FBC)凝固和热处理组织研究", 《2006中国铸造活动周论文集》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105296873A (en) * | 2015-11-13 | 2016-02-03 | 丹阳嘉伟耐磨材料科技有限公司 | Bimetal compound high-toughness, high-boron and high-speed steel hammer and preparing method thereof |
| CN105296872A (en) * | 2015-11-13 | 2016-02-03 | 丹阳嘉伟耐磨材料科技有限公司 | Bimetal composite high-tenacity, high-boron and high-chrome steel hammer and preparing method thereof |
| CN105420619A (en) * | 2015-11-13 | 2016-03-23 | 丹阳嘉伟耐磨材料科技有限公司 | Duplex-metal composite high-toughness high-boron abrasion-resistant steel hammerhead and preparation method thereof |
| CN105537566A (en) * | 2016-02-02 | 2016-05-04 | 天津雅枫科技有限公司 | Crusher hammerhead and casting technological process thereof |
| CN107186199A (en) * | 2016-03-14 | 2017-09-22 | 上海日立电器有限公司 | Gravity foundry technology |
| CN107186199B (en) * | 2016-03-14 | 2019-08-09 | 上海海立电器有限公司 | Gravity foundry technology |
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