CN109454202A - A kind of casting penetration enhancer, wear-resisting steel casting and preparation method thereof - Google Patents
A kind of casting penetration enhancer, wear-resisting steel casting and preparation method thereof Download PDFInfo
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- CN109454202A CN109454202A CN201811518352.0A CN201811518352A CN109454202A CN 109454202 A CN109454202 A CN 109454202A CN 201811518352 A CN201811518352 A CN 201811518352A CN 109454202 A CN109454202 A CN 109454202A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C3/00—Selection of compositions for coating the surfaces of moulds, cores, or patterns
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D19/00—Casting in, on, or around objects which form part of the product
- B22D19/08—Casting in, on, or around objects which form part of the product for building-up linings or coverings, e.g. of anti-frictional metal
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C27/00—Alloys based on rhenium or a refractory metal not mentioned in groups C22C14/00 or C22C16/00
- C22C27/06—Alloys based on chromium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/54—Ferrous alloys, e.g. steel alloys containing chromium with nickel with boron
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
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Abstract
The present invention relates to a kind of casting penetration enhancers, wear-resisting steel casting and preparation method thereof, belong to wear-resistant material technical field.Casting penetration enhancer of the invention consists of the following mass percentage components: chromium 50~70%, carbon 3~5%, molybdenum 1~2%, manganese 1~1.5%, vanadium 1~2%, surplus are iron.Carbon in casting penetration enhancer of the invention can be respectively formed carbide with a large amount of chromium and a small amount of vanadium, to improve the hardness and wear-resisting property of casting infiltration layer, meanwhile, manganese, molybdenum and vanadium can refine the crystal grain of casting infiltration layer, the toughness of casting infiltration layer is improved, to improve the impact resistance of casting infiltration layer.
Description
Technical field
The present invention relates to a kind of casting penetration enhancers, wear-resisting steel casting and preparation method thereof, belong to wear-resistant material technical field.
Background technique
Infiltration technology is that by alloy powder, hard particles brushing or the particular surface that prefabricated component is embedded in casting mold is made,
Solidification waste heat when using casting forms one layer of surface alloying layer with specific organization and performance in matrix surface.Infiltration technology
It is partially formed composite casting infiltration layer in casting easy to wear, can both guarantee casting on the basis of not changing the original ingredient of casting, tissue
With enough intensity, toughnesses, and the wear-resisting property of casting easy-wearing surface is increased substantially, to improve the use of entire casting
Service life.And Infiltration technology is with short production cycle, low energy consumption, simple process, is not required to special equipment, is compound thickness, low in cost,
It is widely used in the industries such as metallurgy, mine, machinery.
Currently, Infiltration technology uses chromium and other strong elements as reinforced phase mostly, but ingredient is single, and casting is caused to seep
Layer hardness and toughness matching relationship are bad, and casting infiltration layer is easy to fall off, and crack.
In the prior art, the Chinese invention patent application that application publication number is CN101195156A discloses one kind in guide and guard
The method that plate surface forms casting infiltration layer.Foreplate is combined by wear-resistant alloy layer and parent.This method comprises: by high carbon chromium
Iron, vanadium iron, ferrotianium, rare earth ferrosilicon are ground into 200~300 mesh, stir evenly, and the nickel coated aluminium oxide powder of 250~300 mesh is added,
Then resin is added, stirs, is coated in mo(U)ld face, solidifies 30min or more, the low conjunction of middle carbon for being 1600~1650 DEG C by temperature
Golden steel molten steel pours into casting mold, cooling.The combination that this method is made between the matrix of foreplate and casting infiltration layer works well, and has
There are high rigidity and excellent wearability.But vanadium iron powder used and nickel package alumina are more, expensive, other nickel package alumina
Although can improve the wetability of alumina particle and matrix, under the conditions of wear working condition, aluminium oxide is still easy to peel off, resistance to
Mill property is poor.
Summary of the invention
The object of the present invention is to provide a kind of at low cost, good casting penetration enhancers of wearability.
The present invention also provides a kind of at low cost, good wear-resisting steel castings of wearability.
The present invention also provides a kind of preparation methods of above-mentioned wear-resisting steel casting, can further increase wear-resisting steel casting
Wearability.
In order to achieve the goal above, technical solution used by casting penetration enhancer of the invention are as follows:
A kind of casting penetration enhancer, it is characterised in that: consist of the following components in percentage by mass: chromium 50~70%, carbon 3~5%,
Molybdenum 1~2%, manganese 1~1.5%, vanadium 1~2%, surplus are iron.
Carbon in casting penetration enhancer of the invention can be respectively formed carbide with a large amount of chromium and a small amount of vanadium, seep to improve casting
The hardness and wear-resisting property of layer, meanwhile, manganese, molybdenum and vanadium can refine the crystal grain of casting infiltration layer, the toughness of casting infiltration layer be improved, to mention
The impact resistance of height casting infiltration layer.
The casting penetration enhancer is mixed to get by high-carbon chromium iron, molybdenum-iron powder, ferromanganese powder, vanadium iron powder, iron powder.With high carbon ferro-chrome
Powder, molybdenum-iron powder, ferromanganese powder, vanadium iron powder, iron powder are mixed and made into casting penetration enhancer, can be improved the uniformity coefficient of each component in casting penetration enhancer.
In order to reduce the fusing difficulty of casting penetration enhancer, the average grain diameter of the casting penetration enhancer is 80~200 μm.
Technical solution used by wear-resisting steel casting of the invention is:
Including steel casting matrix and the casting infiltration layer of steel casting matrix surface, the casting is arranged in a kind of wear-resisting steel casting
Infiltration layer consists of the following components in percentage by mass: chromium 50~70%, carbon 3~5%, molybdenum 1~2%, manganese 1~1.5%, vanadium 1~
2%, surplus is iron.
It is the multicomponent alloy abrasion-resistant composite layer using chromium as essential element that infiltration layer is cast in wear-resisting steel casting of the invention, casts infiltration layer
It is capable of forming good metallurgical bonding with steel casting matrix, and cast the carbon in infiltration layer to distinguish with a large amount of chromium and a small amount of vanadium
Carbide is formed, so that the hardness and wear-resisting property of casting infiltration layer are improved, while manganese, molybdenum and vanadium can refine the crystal grain of casting infiltration layer,
The toughness of casting infiltration layer is improved, to improve the impact resistance of casting infiltration layer.
Preferably, the steel casting matrix is low-alloy steel.Using low-alloy steel as steel casting matrix, with the casting infiltration layer
There is preferable matching, the bond strength of casting infiltration layer and steel casting matrix, and the hardness of low-alloy steel can be further increased
It is good with toughness matching relationship, it can be improved the impact resistance polishing machine of casting entirety.
Preferably, the steel casting matrix consists of the following components in percentage by mass: C 0.35~0.40%, Si
0.30~0.50%, Mn 1.8~2.4%, Cr 0.9~1.4%, Ni 0.3~0.5%, Mo 0.2~0.3%, Nb 0.01
~0.02%, B 0.03~0.05%, S≤0.005%, P≤0.005%, surplus are iron.Control P's and S in steel casting matrix
Content reduces diffusion of the P and S to casting infiltration layer, casting infiltration layer and matrix is avoided to become fragile, and whole impact resistance abrasion is turned up.
In order to further increase the wear-resistant impact property of casting infiltration layer and reduce cost, it is preferred that the thickness of the casting infiltration layer
Degree is 6~10mm.
Technical solution used by the preparation method of wear-resisting steel casting of the invention are as follows:
A kind of preparation method of above-mentioned wear-resisting steel casting, includes the following steps:
It provides and forms consistent casting penetration enhancer with the casting infiltration layer；
It provides and coating is mainly seeped by the casting that the casting penetration enhancer, organic binder and organic solvent form；
Coating is seeped into the casting and is coated in mold cavity surface, then lights the casting coated in mold cavity and seeps coating, to
After paint solidification, molten steel is injected into mold cavity, it is cooling.
The preparation method of wear-resisting steel casting of the invention, simple process can be completed with current routine casting production line, and
And it is with short production cycle, at low cost, thicker casting infiltration layer can be made；In addition, between casting infiltration layer obtained and steel casting matrix at
Divide distribution gradient, substantially increases the bond strength of casting infiltration layer and matrix.
In order to improve the uniformity coefficient of each component in casting penetration enhancer and improve the efficiency of mixing, it is preferred that the casting penetration enhancer by
High-carbon chromium iron, molybdenum-iron powder, ferromanganese powder, vanadium iron powder, iron powder composition；The average grain diameter of the casting penetration enhancer is 80~200 μm.Selection
The reason of particle size range, is the flowing of the fusing that can guarantee to cast penetration enhancer simultaneously and molten steel into casting penetration enhancer.
In order to further increase the performance of casting infiltration layer and reduce cost, it is preferred that casting seeps coating on mold cavity surface
Coating thickness is 5~9mm.
Specific embodiment
Casting penetration enhancer provided by the invention, it is characterised in that: consist of the following components in percentage by mass: chromium 50~70%,
Carbon 3~5%, molybdenum 1~2%, manganese 1~1.5%, vanadium 1~2%, surplus are iron.
The casting penetration enhancer is mixed to get by high-carbon chromium iron, molybdenum-iron powder, ferromanganese powder, vanadium iron powder, iron powder.The casting penetration enhancer
Average grain diameter is 80~200 μm, preferably 120~150 μm.
Wear-resisting steel casting provided by the invention is seeped including steel casting matrix and the casting that steel casting matrix surface is arranged in
Layer, the casting infiltration layer consist of the following components in percentage by mass: chromium 50~70%, carbon 3~5%, molybdenum 1~2%, manganese 1~
1.5%, vanadium 1~2%, surplus are iron.The casting infiltration layer includes the lath martensite tissue of high-wearing feature and the chromium of Dispersed precipitate
Carbide and vanadium carbide.
The preparation method of above-mentioned wear-resisting steel casting provided by the invention, comprising the following steps:
It provides and forms consistent casting penetration enhancer with the casting infiltration layer；
It provides and coating is mainly seeped by the casting that the casting penetration enhancer, organic binder and organic solvent form；
Coating is seeped into the casting and is coated in mold cavity surface, then lights the casting coated in mold cavity and seeps coating, to
After paint solidification, molten steel is injected into mold cavity, it is cooling.
The casting infiltration layer of abrasion-resistant stee made from preparation method using wear-resisting steel casting of the invention, which is formed, has high-wearing feature
Lath martensite tissue, Dispersed precipitate chromium carbide and vanadium carbide.
Preferably, the average grain diameter of the casting penetration enhancer is 80~200 μm.It is further preferred that the casting penetration enhancer is averaged
Partial size is 120~150 μm.
When mold cavity surface coats casting and seeps coating, it can according to need and casting infiltration coating is only coated in mold cavity table
The partial region in face.
Coating is seeped in the adhesion strength on mold cavity surface in order to improve casting, while being reduced casting and being seeped coating in mold cavity table
The flowing in face improves the surface quality of wear-resisting steel casting, it is preferred that the organic binder is polyvinyl butyral or phenolic aldehyde
Resin.The organic solvent is ethyl alcohol.The mass ratio of the organic binder and organic solvent is 1:(14~20).It is described organic
The gross mass of binder and organic solvent and the mass ratio of casting penetration enhancer are 1:(7~11.5).
It is further preferred that the mass ratio of the organic binder and organic solvent is 1:(15~20).It is described organic viscous
The mass ratio of the gross mass and casting penetration enhancer of tying agent and organic solvent is 1:(7~10).
Preferably, the molten steel is low-alloy steel molten steel.It is further preferred that the low-alloy steel molten steel is by following quality
The group of percentage is grouped as: C 0.35~0.40%, Si 0.30~0.50%, Mn 1.8~2.4%, Cr 0.9~1.4%,
Ni 0.3~0.5%, Mo 0.2~0.3%, Nb 0.01~0.02%, B 0.03~0.05%, S≤0.005%, P≤
0.005%, surplus is iron.Both Cr, Ni cooperate with the degree of supercooling for being capable of increasing austenitic steel, and thinning microstructure improves intensity and changes
Kind impact flexibility and reduction Cold Brittleness Transition Temperature.Suitable Mo, Cr, Ni can refine crystal grain, improve intensity.
Preferably, the temperature of the molten steel is 1580~1680 DEG C.Casting is carried out at a higher temperature is capable of providing foot
Diffusion of enough heat melts casting penetration enhancers and guarantee casting infiltration layer alloying element into matrix, ultimate guarantee are cast between infiltration layer and matrix
Metallurgical bonding makes casting infiltration layer be not easy to peel off in work process.
Below in conjunction with specific embodiment, further description of the technical solution of the present invention.
Cast the embodiment of penetration enhancer
Embodiment 1
The casting penetration enhancer of the present embodiment, consists of the following mass percentage components: chromium 70%, carbon 5%, molybdenum 2%, manganese
1.5%, vanadium 2%, surplus are iron；Casting penetration enhancer to be by average grain diameter be 150 μm of high-carbon chromium iron, molybdenum-iron powder, ferromanganese powder, vanadium
What iron powder and iron powder obtained after mixing.
Embodiment 2
The casting penetration enhancer of the present embodiment, consists of the following mass percentage components: chromium 50%, carbon 3%, molybdenum 1%, manganese 1%,
Vanadium 1%, surplus are iron；Casting penetration enhancer to be by average grain diameter be 120 μm high-carbon chromium iron, molybdenum-iron powder, ferromanganese powder, vanadium iron powder and
What iron powder obtained after mixing.
Embodiment 3
The casting penetration enhancer of the present embodiment, consists of the following mass percentage components: chromium 60%, carbon 4%, molybdenum 1.5%, manganese
1.2%, vanadium 1.5%, surplus are iron；Casting penetration enhancer to be by average grain diameter be 130 μm high-carbon chromium iron, molybdenum-iron powder, ferromanganese powder,
What vanadium iron powder and iron powder obtained after mixing.
Embodiment 4
The casting penetration enhancer of the present embodiment, the difference with the casting penetration enhancer of embodiment 1 are: the casting penetration enhancer of the present embodiment is will to be averaged
Partial size is to obtain after 80 μm of high-carbon chromium iron, molybdenum-iron powder, ferromanganese powder, vanadium iron powder and iron powder mixes.
Embodiment 5
The casting penetration enhancer of the present embodiment, the difference with the casting penetration enhancer of embodiment 2 are only that: the casting penetration enhancer of the present embodiment is will to put down
Equal partial size is to obtain after 200 μm of high-carbon chromium iron, molybdenum-iron powder, ferromanganese powder, vanadium iron powder and iron powder mixes.
The embodiment of wear-resisting steel casting
Embodiment 1
Including steel casting matrix and the casting infiltration layer of steel casting matrix surface is arranged in the wear-resisting steel casting of the present embodiment,
Casting infiltration layer consists of the following components in percentage by mass: chromium 70%, carbon 5%, molybdenum 2%, manganese 1.5%, vanadium 2%, surplus are iron；Casting
Infiltration layer with a thickness of 10mm；Steel casting matrix consists of the following mass percentage components: C:0.40%, Si:0.50%, Mn:
2.4%, Cr:1.4%, Ni:0.5%, Mo:0.3%, Nb:0.02%, B:0.05%, S:0.004%, P:0.003%, surplus
For Fe.Casting infiltration layer includes the carbide of the lath martensite tissue of high-wearing feature and the chromium of Dispersed precipitate and the carbide of vanadium.
Embodiment 2
Including steel casting matrix and the casting infiltration layer of steel casting matrix surface is arranged in the wear-resisting steel casting of the present embodiment,
Casting infiltration layer consists of the following components in percentage by mass: chromium 50%, carbon 3%, molybdenum 1%, manganese 1%, vanadium 1%, surplus are iron；Casting is seeped
Layer with a thickness of 6mm；Steel casting matrix consists of the following mass percentage components: C:0.35%, Si:0.30%, Mn:
1.8%, Cr:0.9%, Ni:0.3%, Mo:0.2%, Nb:0.01%, B:0.03%, S:0.003%, P:0.004%, surplus
For iron.Casting infiltration layer includes the carbide of the lath martensite tissue of high-wearing feature and the chromium of Dispersed precipitate and the carbide of vanadium.
Embodiment 3
Including steel casting matrix and the casting infiltration layer of steel casting matrix surface is arranged in the wear-resisting steel casting of the present embodiment,
Casting infiltration layer consists of the following components in percentage by mass: chromium 60%, carbon 4%, molybdenum 1.5%, manganese 1.2%, vanadium 1.5%, surplus are
Iron；Cast infiltration layer with a thickness of 8mm；Steel casting matrix consists of the following mass percentage components: C:0.4%, Si:0.4%,
Mn:2.0%, Cr:1.2%, Ni:0.4%, Mo:0.25%, Nb:0.02%, B:0.04%, S:0.003%, P:0.004%,
Surplus is iron.Casting infiltration layer includes the carbonization of the carbide and vanadium of the lath martensite tissue of high-wearing feature and the chromium of Dispersed precipitate
Object.
The embodiment of the preparation method of wear-resisting steel casting
Embodiment 1
The preparation method of the wear-resisting steel casting of the present embodiment, comprising the following steps:
1) it is iron according to chromium 70g, carbon 5g, molybdenum 2g, manganese 1.5g, vanadium 2g, surplus in every 100g alloyed powder, weighs respectively average
Partial size is that 150 μm of high-carbon chromium iron, molybdenum-iron powder, ferromanganese powder, vanadium iron powder and iron powder is configured to alloy powder, mixed with ball mill
Casting penetration enhancer is obtained after closing uniformly, it is spare；
2) 0.5g polyvinyl butyral and 8.5g dehydrated alcohol are added into every 100g that step 1) prepares casting penetration enhancer
Mixed solution stirs evenly, and obtains casting and seeps coating；Then it is corresponding coated in the wear-resisting position of castings desire coating to be seeped into obtained casting
Mold cavity surface, coating thickness 9mm, light casting seep coating, it is spare after paint solidification；
3) molten steel that temperature is 1680 DEG C is poured into the mold in step 2), after natural cooling, takes out casting, cast
Alloying layer thickness is 10mm.
Wherein, the molten steel poured into is low-alloy steel molten steel, is consisted of the following mass percentage components: C:0.40%, Si:
0.50%, Mn:2.4%, Cr:1.4%, Ni:0.5%, Mo:0.3%, Nb:0.02%, B:0.05%, S:0.004%, P:
0.003%, surplus Fe.
Embodiment 2
The preparation method of the wear-resisting steel casting of the present embodiment, comprising the following steps:
1) it is iron according to chromium 50g, carbon 3g, molybdenum 1g, manganese 1g, vanadium 1g, surplus in every 100g alloyed powder, weighs average grain respectively
Diameter is that 120 μm of high-carbon chromium iron, molybdenum-iron powder, ferromanganese powder, vanadium iron powder and iron powder is configured to alloy powder, is mixed with ball mill
Casting penetration enhancer is obtained after uniformly, it is spare；
2) 0.8g polyvinyl butyral and 11.7g dehydrated alcohol are added into every 100g that step 1) prepares casting penetration enhancer
Mixed solution stirs evenly, and obtains casting and seeps coating；Then it is corresponding coated in the wear-resisting position of castings desire coating to be seeped into obtained casting
Mold cavity surface, coating thickness 5mm, light casting seep coating, it is spare after paint solidification；
3) molten steel that temperature is 1580 DEG C is poured into the mold in step 2), after natural cooling, takes out casting, cast
Alloying layer thickness is 6mm.
Wherein, the molten steel poured into is low-alloy steel molten steel, is consisted of the following mass percentage components: C:0.35%, Si:
0.30%, Mn:1.8%, Cr:0.9%, Ni:0.3%, Mo:0.2%, Nb:0.01%, B:0.03%, S:0.003%, P:
0.004%, surplus is iron.
Embodiment 3
The preparation method of the wear-resisting steel casting of the present embodiment, comprising the following steps:
1) it is iron according to chromium 60g, carbon 4g, molybdenum 1.5g, manganese 1.2g, vanadium 1.5g, surplus in every 100g alloyed powder, weighs respectively
Granularity is that 130 μm of high-carbon chromium iron, molybdenum-iron powder, ferromanganese powder, vanadium iron powder and iron powder is configured to alloy powder, mixed with ball mill
Casting penetration enhancer is obtained after closing uniformly, it is spare；
2) 0.6g polyvinyl butyral and 9.4g dehydrated alcohol are added into every 100g that step 1) prepares casting penetration enhancer
Mixed solution stirs evenly, and obtains casting and seeps coating；Then it is corresponding coated in the wear-resisting position of castings desire coating to be seeped into obtained casting
Mold cavity surface, coating thickness 7mm, light casting seep coating, it is spare after paint solidification；
3) molten steel that temperature is 1630 DEG C is poured into the mold in step 2), after natural cooling, takes out casting, cast
Alloying layer thickness is 8mm.
Wherein, the molten steel poured into is low-alloy steel molten steel, is consisted of the following mass percentage components: C:0.4%, Si:
0.4%, Mn:2.0%%, Cr:1.2%, Ni:0.4%, Mo:0.25%, Nb:0.02%, B:0.04%, S:0.003%, P:
0.004%, surplus is iron.
Embodiment 4
The preparation method of the wear-resisting steel casting of the present embodiment, the area with the preparation method of the wear-resisting steel casting in embodiment 1
Be not only that: high-carbon chromium iron employed in step 1), molybdenum-iron powder, ferromanganese powder, vanadium iron powder and iron powder average grain diameter be
80μm。
Embodiment 5
The preparation method of the wear-resisting steel casting of the present embodiment, the area with the preparation method of the wear-resisting steel casting in embodiment 2
Be not only that: high-carbon chromium iron employed in step 1), molybdenum-iron powder, ferromanganese powder, vanadium iron powder and iron powder average grain diameter be
200μm。
Experimental example
According to standard GB/T/T 230.1-2018 " metal material Rockwell hardness test part 1: test method ", divide
The casting infiltration layer that wear-resisting steel casting is made in the other Examples 1 to 5 to above-mentioned preparation method carries out the test of Rockwell hardness, test knot
Fruit is shown in Table 1.
The performance test results of the wear-resisting steel casting of table 1 casting infiltration layer
| Project | Rockwell hardness (HRC) |
| Embodiment 1 | 61.5 |
| Embodiment 2 | 57.0 |
| Embodiment 3 | 60.5 |
| Embodiment 4 | 60.4 |
| Embodiment 5 | 61.2 |
As shown in Table 1, the casting infiltration layer of wear-resisting steel casting of the invention has the advantages that hardness is high, wearability is good.
Claims (10)
1. a kind of casting penetration enhancer, it is characterised in that: consist of the following components in percentage by mass: chromium 50~70%, carbon 3~5%, molybdenum
1~2%, manganese 1~1.5%, vanadium 1~2%, surplus are iron.
2. casting penetration enhancer according to claim 1, it is characterised in that: the casting penetration enhancer is by high-carbon chromium iron, molybdenum-iron powder, manganese iron
Powder, vanadium iron powder, iron powder are mixed to get.
3. casting penetration enhancer according to claim 2, it is characterised in that: the average grain diameter of the casting penetration enhancer is 80~200 μm.
4. a kind of wear-resisting steel casting, it is characterised in that: seeped including steel casting matrix and the casting that steel casting matrix surface is arranged in
Layer, the casting infiltration layer consist of the following components in percentage by mass: chromium 50~70%, carbon 3~5%, molybdenum 1~2%, manganese 1~
1.5%, vanadium 1~2%, surplus are iron.
5. wear-resisting steel casting according to claim 4, it is characterised in that: the steel casting matrix is low-alloy steel.
6. wear-resisting steel casting according to claim 4 or 5, it is characterised in that: the steel casting matrix is by following quality hundred
The group of ratio is divided to be grouped as: C 0.35~0.40%, Si 0.30~0.50%, Mn 1.8~2.4%, Cr 0.9~1.4%, Ni
0.3~0.5%, Mo 0.2~0.3%, Nb 0.01~0.02%, B 0.03~0.05%, S≤0.005%, P≤
0.005%, surplus is iron.
7. wear-resisting steel casting according to claim 4, it is characterised in that: it is described casting infiltration layer with a thickness of 6~10mm.
8. a kind of preparation method of wear-resisting steel casting as claimed in claim 4, characterized by the following steps:
It provides and forms consistent casting penetration enhancer with the casting infiltration layer；
It provides and coating is mainly seeped by the casting that the casting penetration enhancer, organic binder and organic solvent form；
Coating is seeped into the casting and is coated in mold cavity surface, then lights the casting coated in mold cavity and seeps coating, to coating
After solidification, molten steel is injected into mold cavity, it is cooling.
9. the preparation method of wear-resisting steel casting according to claim 8, it is characterised in that: the casting penetration enhancer is by high carbon ferro-chrome
Powder, molybdenum-iron powder, ferromanganese powder, vanadium iron powder, iron powder composition；The average grain diameter of the casting penetration enhancer is 80~200 μm.
10. the preparation method of wear-resisting steel casting according to claim 8, it is characterised in that: casting seeps coating in mold cavity
The coating thickness on surface is 5~9mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811518352.0A CN109454202B (en) | 2018-12-12 | 2018-12-12 | Casting infiltration agent, wear-resistant steel casting and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811518352.0A CN109454202B (en) | 2018-12-12 | 2018-12-12 | Casting infiltration agent, wear-resistant steel casting and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109454202A true CN109454202A (en) | 2019-03-12 |
| CN109454202B CN109454202B (en) | 2020-07-10 |
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| CN110090917A (en) * | 2019-04-15 | 2019-08-06 | 河北科技大学 | A kind of iron base composite material method for casting and seeping coating, preparation method and casting impregnation coating using its preparation |
| CN112570687A (en) * | 2019-09-29 | 2021-03-30 | 洛阳钢丰机械制造有限公司 | Special alloy composite casting process |
| CN112962019A (en) * | 2021-02-03 | 2021-06-15 | 河南科技大学 | High-wear-resistance steel-based composite material and preparation method thereof |
| CN113145829A (en) * | 2021-01-29 | 2021-07-23 | 自贡长城硬面材料有限公司 | Preparation method of composite wear-resistant element |
| CN114011887A (en) * | 2021-10-18 | 2022-02-08 | 马鞍山市方圆材料工程股份有限公司 | Outlet guide for lost foam composite casting and production process |
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| CN114011887A (en) * | 2021-10-18 | 2022-02-08 | 马鞍山市方圆材料工程股份有限公司 | Outlet guide for lost foam composite casting and production process |
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