CN103008615A - Manufacturing method of alloy steel cast-in zirconium corundum ceramic composite material - Google Patents
Manufacturing method of alloy steel cast-in zirconium corundum ceramic composite material Download PDFInfo
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- CN103008615A CN103008615A CN2012105257766A CN201210525776A CN103008615A CN 103008615 A CN103008615 A CN 103008615A CN 2012105257766 A CN2012105257766 A CN 2012105257766A CN 201210525776 A CN201210525776 A CN 201210525776A CN 103008615 A CN103008615 A CN 103008615A
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Abstract
The invention discloses a manufacturing method of an alloy steel cast-in zirconium corundum ceramic composite material, and aims to provide a manufacturing method of a composite wear-resistant material which has the characteristic that the service life of a product is not greatly prolonged. The manufacturing method comprises the following steps of: (1) prefabricating a cast-in zirconium corundum ceramic block; (2) machining a protective shell of the zirconium corundum ceramic cast-in block; (3) preparing and coating a paint; (4) manufacturing a steel plate for fixing the zirconium corundum ceramic cast-in block; (5) casting the steel plate; and (6) melting alloy steel, pouring molten alloy in a casting mold, filling the casting mold by the molten alloy after the molten alloy flows through a cavity in the casting mold and holes in the steel plate for fixing the zirconium corundum ceramic cast-in block, enclosing the zirconium corundum ceramic cast-in block by molten alloy steel, diffusing vanadium atoms in the vanadium iron paint in molten steel, solidifying to form a casting including the zirconium corundum ceramic, and producing vanadium carbide particles at the interfacial region of the zirconium corundum ceramic and the alloy steel. The manufacturing method belongs to the technical field of mechanical material preparation.
Description
Technical field
The present invention relates to a kind of manufacture method of composite, specifically, is the manufacture method of steel alloy castingin Zircon corundum ceramics composite; Belong to mechanical material manufacturing technology field.
Background technology
The machinery that is used for digging up mine in the mine is because the attrition amount is huge, and the metal wear resistant material of whenever being only abrasive wear consumption reaches more than 300 ten thousand tons.Economic loss is more than 1,000 hundred million yuan.Main cause is that most workpieces adopt the metal manufacturing, and the target of facing in the mine that to be hardness higher is nonmetal, the former hardness ratio is much lower than the latter, the tup quality that many mining areas are used for the disintegrating machine of ore reduction only just needed to change with several days, caused cost to increase idle cost.Complicated target and abominable working condition, require the material of processing component should be aspect hardness corresponding even be higher than target with it, single metal alloy compositions has been difficult to adapt to, particularly the scope of attack of workpiece should adopt the high ceramic material of hardness, then do not need high rigidity at the material that is positioned at non-working surface, as long as the moderate and higher toughness of hardness.
The people such as author's health and happiness point out at " application study of novel metal-ceramic wear-resisting material " paper that " heat processing technique " 12 periodicals in 2010 are stepped on: by machining process alumina ceramic plate is embedded in the metallic matrix, the wear test result, metal-ceramic composite material is compared with the high-chromium alloy White Cast Iron Material, and wearability has improved more than 3 times.This composite compares test with the normal steel casting liner plate on the coal chute of certain power plant.Normal steel casting liner plate running 1440h lost efficacy substantially, and metal-ceramic composite liner 7200 h that can turn round at least.Metal ceramic composite lining board has the advantages such as wearability is high, good stability, but complex technique belongs to the machining category, and efficient is low, is difficult to produce in enormous quantities.The people such as Deng Gang point out at " centrifugal casting iron-based gradient functional composite material " paper of the 8th phase in 2004 " mechanical engineering material " publication: utilize the particle segregation phenomena that the density variation between the hardening constituent particle and melted metal causes in the centrifugal force field, prepare and strengthen the functional material that the gradient of coordinating distributes, composite layer and matrix hardness reach respectively 63-65HRC and 50-55HRC; Pour into a mould synchronously with WC particle and Fe-C aluminium alloy, can obtain the composite that the top layer is 18～25mm, WC particle volume fraction approximately 70%; But the foundry goods that centre spinning can only the production ring-type can not harden with the appointed part of the foundry goods of complex shape.
Summary of the invention
It is high that purpose of the present invention just provides a kind of product hardness, the manufacture method of the steel alloy castingin Zircon corundum ceramics composite of long service life.
Technical scheme of the present invention is such: the manufacture method of a kind of Zircon corundum ceramics ball-low-alloy steel composite, it is characterized in that, comprise the steps: 1) prefabricated castingin Zircon corundum ceramics piece
Be filled in the mould after zirconia powder, alumina powder and stearic acid fully mixed, layering adds stainless steel fibre in the filling process, and is compressing, makes Zircon corundum ceramics castingin piece through oversintering;
Wherein, zirconia powder, alumina powder, stainless steel fibre and stearic acid are 2-4 ︰ 6-8 ︰ 0.5 ︰ 0.05 by weight;
2) containment vessel of processing Zircon corundum ceramics castingin piece
Zircon corundum ceramics castingin piece is enclosed within on the Zircon corundum ceramics castingin piece;
3) coating and applying coating
The vanadium iron of trade mark FeV50 is made vanadium iron powder through broken, ball milling.Vanadium iron powder, sodium silicate binder, water are mixed rear fully the stirring make coating, have the Zircon corundum ceramics castingin piece of steel pipe to be immersed in the coating in cover, take out dry;
Wherein: vanadium iron powder, sodium silicate binder, water weight ratio are 9-11 ︰ 1 ︰ 1;
4) make the fixedly steel plate of Zircon corundum ceramics castingin piece
Size according to Zircon corundum ceramics castingin block protection steel pipe, punching on steel plate, the quantity in hole is more than the quantity of the Zircon corundum ceramics castingin piece of needs installation, and two blocks of steel plates of breaking through the hole are fixed Zircon corundum ceramics castingin piece, and other remaining holes are as the passage of casting metal;
5) steel plate is installed
To two block plates of Zircon corundum ceramics castingin piece be installed, be placed on position corresponding to casting mold, with iron nail steel plate is fixed in the casting mold;
6) melted alloy steel, alloy liquid is poured into casting mold, liquid is by the cavity in the casting mold and the fixing hole on the steel plate of Zircon corundum ceramics castingin piece, casting mold is filled type, steel alloy liquid surrounds Zircon corundum ceramics castingin piece, vanadium atom in the vanadium iron coating spreads in the liquid of steel, solidifies the rear inner foundry goods that contains Zircon corundum ceramics that forms, and produces the vanadium carbide particle at the interface zone of Zircon corundum ceramics and steel alloy.
Above-mentioned steel alloy castingin Zircon corundum ceramics forms the manufacture method of composite, described steel alloy hardness 200HB; Described Zircon corundum ceramics hardness 2400HV.
Compared with prior art, composite abrasion resistance material of the present invention, the high rigidity Zircon corundum ceramics is used as hardened material, with the matrix material of steel alloy as product, at the interiors of products block fused alumina zirconia mosaics that distributing as required, Zircon corundum ceramics and metallic matrix consist of wearing composite material jointly, the two cooperation is brought into play separately its effect and has been avoided the incomplete problem of single metal function, calculate by equal volume, the cost of Zircon corundum ceramics piece has increased slightly than the cost of steel alloy, therefore under the condition that can the workinprocess cost recruitment allows, increase substantially the service life of product, for manufacturing enterprise brings economic benefit.This material adopts the casting technique manufacturing to form.Zircon corundum ceramics is distributed in the zone of product needed taking up wear.Ceramic body distance product surface 8-10mm, the material in the 8-10mm zone is alloy, and the hardness of steel alloy 200HB only, Zircon corundum ceramics hardness reaches 2400HV, and HB hardness is compared approximately 1:1 with HV hardness, and Zircon corundum ceramics hardness is about 10 times of steel alloy.When material during for the manufacture of mechanical wear parts, after the alloy-layer of the 8-10mm of cast(ing) surface is worn, the Zircon corundum ceramics of extreme hardness and vanadium carbide particle will be brought into play the function of antagonist grinding abrasion, the service life of having improved parts.
The specific embodiment
Below in conjunction with embodiment, the invention will be further described, but it is not represented as unique embodiment of the present invention.
The manufacture method of steel alloy castingin Zircon corundum ceramics composite of the present invention is at first made a metal die, is used for compacting Zircon corundum ceramics castingin piece; The powder of Zircon corundum ceramics castingin piece is made in configuration, comprise zirconia powder, alumina powder, stainless steel fibre and stearic acid, granularity Wei＜=50 μ the m of zirconia powder, alumina powder wherein, stainless steel fibre diameter ﹤ 0.2mm, alumina powder is the main material of Zircon corundum ceramics castingin piece, zirconia powder plays the first toughening effect to the aluminium oxide tissue, and stainless steel fibre is used as the second toughening effect, the lubricant when stearic acid is used as the material pressure moulding; Zirconia powder, alumina powder and stearic acid are mixed, and gradation adds in the metal die, and is each middle, with stainless steel fibre successively level put in the middle of the material of mould, material is by after quantitatively adding, and forcing press is suppressed the material in the mould, Ya Li Zhi＞=50 MPas.
Ceramic body is inserted in the sintering furnace, according to the heating rate of 10 ℃/min, furnace temperature is risen to 1350 ℃, insulation 4h cools to room temperature with the furnace and comes out of the stove.
The steel pipe that inside dimension is corresponding with Zircon corundum ceramics castingin piece outside dimension cuts, its length is consistent with the length of Zircon corundum ceramics castingin piece, with the steel pipe socket of well cutting on Zircon corundum ceramics castingin piece, steel pipe and ceramic block form tight fit, prevent the two disengagement in the transportation, coating vanadium iron coating, drying.
Make the bracing frame that is used for assembling Zircon corundum ceramics castingin piece, this bracing frame adopts two steel plates through punching to form, hole in the steel plate has the steel pipe external dimensions of ceramic block consistent with inner sleeve, the Zircon corundum ceramics castingin is packaged in the hole of two block plates, ceramic block is fixed, then with iron nail steel plate is being fixed in the sand mold, ceramic castingin piece is apart from casting mold type wall 8-10mm.
Melted alloy, alloy designations are Mn13.1550 ℃-1600 ℃ of molten steel fusion temperatures, 1500 ℃ of molten steel pouring temperatures.
Foundry goods after the cast cooling formation is inserted in the heat-treatment furnace, be heated to 1050 ℃, insulation 4h is warming up to more than 1100 ℃, puts into fast cold water and carries out the tough processing of water, to eliminate the carbide on the metallic matrix crystal grain boundary, the toughness of reinforcing material.
Gradient wear-resistant material of the present invention, as required at a certain position or a plurality of positions castingin Zircon corundum ceramics piece on the matrix of steel alloy, other positions still are alloy structure, ceramic block has high hardness, alloy structure has preferably toughness, the two cooperation is brought into play separately its effect and has been avoided the incomplete problem of single metal function, calculate by equal volume, the cost of Zircon corundum ceramics piece has increased slightly than the cost of steel alloy, therefore under the condition that can the workinprocess cost recruitment allows, increase substantially the service life of product, for manufacturing enterprise brings economic benefit.
The cost of the present invention and single steel alloy and anti-wear performance relatively see Table one.
Table one
The density of Zircon corundum ceramics is 3.9g/cm3, same volume, and weight only is 1/2 of steel alloy, the cost of raw material of Zircon corundum ceramics-alloy steel composite material is:
6000 yuan * 90%+25000 unit * 10% ÷ 2=6650 yuan/ton
Single alloy steel material cost is 6000 yuan/tons, and the present invention is 6650 yuan/tons, has only increased by 10.8%; Became 21 day from original 7 days service life, increased twice, and the present invention is used for substituting original single alloy steel product, will have obvious economic benefit.
Claims (3)
1. the manufacture method of a steel alloy castingin Zircon corundum ceramics formation composite is characterized in that, comprises the steps: successively
1) prefabricated castingin Zircon corundum ceramics piece
Be filled in the mould after zirconia powder, alumina powder and stearic acid fully mixed, layering adds stainless steel fibre in the filling process, and is compressing, makes Zircon corundum ceramics castingin piece through oversintering;
Wherein, zirconia powder, alumina powder, stainless steel fibre and stearic acid are 2-4 ︰ 6-8 ︰ 0.5 ︰ 0.05 by weight;
2) containment vessel of processing Zircon corundum ceramics castingin piece
Zircon corundum ceramics castingin piece is enclosed within on the Zircon corundum ceramics castingin piece;
3) coating and applying coating
Vanadium iron powder, sodium silicate binder, water are mixed rear fully the stirring make coating, have the Zircon corundum ceramics castingin piece of steel pipe to be immersed in the coating in cover, take out dry;
Wherein: vanadium iron powder, sodium silicate binder, water weight ratio are 9-11 ︰ 1 ︰ 1;
4) make the fixedly steel plate of Zircon corundum ceramics castingin piece
Size according to Zircon corundum ceramics castingin block protection steel pipe, punching on steel plate, the quantity in hole is more than the quantity of the Zircon corundum ceramics castingin piece of needs installation, and two blocks of steel plates of breaking through the hole are fixed Zircon corundum ceramics castingin piece, and other remaining holes are as the passage of casting metal;
5) steel plate is installed
To two block plates of Zircon corundum ceramics castingin piece be installed, be placed on position corresponding to casting mold, with iron nail steel plate is fixed in the casting mold;
6) fusing Mn13 steel alloy, alloy liquid is poured into casting mold, liquid is by the cavity in the casting mold and the fixing hole on the steel plate of Zircon corundum ceramics castingin piece, casting mold is filled type, steel alloy liquid surrounds Zircon corundum ceramics castingin piece, vanadium atom in the vanadium iron coating spreads in the liquid of steel, solidifies the rear inner foundry goods that contains Zircon corundum ceramics that forms, and produces the vanadium carbide particle at the interface zone of Zircon corundum ceramics and steel alloy.
2. steel alloy castingin Zircon corundum ceramics according to claim 1 forms the manufacture method of composite, it is characterized in that described steel alloy hardness 200HB.
3. steel alloy castingin Zircon corundum ceramics according to claim 1 forms the manufacture method of composite, it is characterized in that described Zircon corundum ceramics hardness 2400HV.
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| CN201210525776.6A CN103008615B (en) | 2012-12-06 | 2012-12-06 | Manufacturing method of alloy steel cast-in zirconium corundum ceramic composite material |
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| CN201210525776.6A CN103008615B (en) | 2012-12-06 | 2012-12-06 | Manufacturing method of alloy steel cast-in zirconium corundum ceramic composite material |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016023245A1 (en) * | 2014-08-14 | 2016-02-18 | 东莞颠覆产品设计有限公司 | Method for integrally forming non-metal part and metal part |
| CN105855517A (en) * | 2016-05-30 | 2016-08-17 | 佛山市顺德区穗峰泉金属材料有限公司 | Production method of wear-resisting castings |
| CN108500237A (en) * | 2018-05-11 | 2018-09-07 | 安阳市现书特种轴承有限公司 | A kind of production method of the compound roller of cermet |
| CN113414354A (en) * | 2021-05-28 | 2021-09-21 | 四川共享铸造有限公司 | Method for preventing copper pipe from being melted through |
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| EP0071047A2 (en) * | 1981-07-25 | 1983-02-09 | Hoesch Aktiengesellschaft | Process for making cast pieces with inserted steel tubes |
| CN1785554A (en) * | 2005-12-22 | 2006-06-14 | 河南科技大学 | Technology for improving service life of high manganese steel wear resistant part |
| CN101195156A (en) * | 2007-12-04 | 2008-06-11 | 北京工业大学 | Process for producing casting and seeping foreplate of rolling mill |
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| US20090041962A1 (en) * | 2007-08-08 | 2009-02-12 | Grohe Ag | Composite casting process |
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| EP0071047A2 (en) * | 1981-07-25 | 1983-02-09 | Hoesch Aktiengesellschaft | Process for making cast pieces with inserted steel tubes |
| EP0071047A3 (en) * | 1981-07-25 | 1983-06-15 | Hoesch Werke Aktiengesellschaft | Process for making cast pieces with inserted steel tubes |
| CN1785554A (en) * | 2005-12-22 | 2006-06-14 | 河南科技大学 | Technology for improving service life of high manganese steel wear resistant part |
| US20090041962A1 (en) * | 2007-08-08 | 2009-02-12 | Grohe Ag | Composite casting process |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016023245A1 (en) * | 2014-08-14 | 2016-02-18 | 东莞颠覆产品设计有限公司 | Method for integrally forming non-metal part and metal part |
| CN105855517A (en) * | 2016-05-30 | 2016-08-17 | 佛山市顺德区穗峰泉金属材料有限公司 | Production method of wear-resisting castings |
| CN108500237A (en) * | 2018-05-11 | 2018-09-07 | 安阳市现书特种轴承有限公司 | A kind of production method of the compound roller of cermet |
| CN113414354A (en) * | 2021-05-28 | 2021-09-21 | 四川共享铸造有限公司 | Method for preventing copper pipe from being melted through |
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| CN103008615B (en) | 2014-07-16 |
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Granted publication date: 20140716 Termination date: 20181206 |