CN101012539A - Preparing technique of boride silk net steel-based composite material - Google Patents
Preparing technique of boride silk net steel-based composite material Download PDFInfo
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- CN101012539A CN101012539A CN 200710017432 CN200710017432A CN101012539A CN 101012539 A CN101012539 A CN 101012539A CN 200710017432 CN200710017432 CN 200710017432 CN 200710017432 A CN200710017432 A CN 200710017432A CN 101012539 A CN101012539 A CN 101012539A
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Abstract
The invention discloses a making technique of boride screen steel-based composite material, which comprises the following steps: weaving metal screen; placing metal screen into vacuum furnace at 1100-1400 deg.c for 1-8h; reacting metal element and boron completely; obtaining boride screen; fixing the screen at corresponding position of abrasion-proof piece; moulding; casting; fusing steel; obtaining liquid steel; casting liquid steel in the mould of abrasion-proof working piece.
Description
Technical field
The present invention relates to a kind of preparation technology of wearing composite material, particularly a kind of preparation technology of boride silk net steel-based composite material.The present invention is applied to the manufacturing process of industry high-abrasive materials such as mine, building materials, metallurgy, electric power and railway.
Background technology
High-abrasive material is widely used in the manufacturing of the wear part of industries such as mine, building materials, metallurgy, electric power and railway.As liner plate, tup, Hubei Province plate of crusher, ball grinding machine lining board, abrading-ball, roll, grinding roller, excavator shovel tooth, railroad frog etc.According to system juice, the domestic annual metal wear resistant material that consumes reaches 3,000,000 tons approximately.The very fast inefficacy of abrasion piece, the frequent replacing not only wasted a large amount of metallic substance, and causes huge stop work and production loss, become an obstacle of restriction production development.
The used high-abrasive material of every profession and trade mainly contains several single metal material such as wear resisting steel, antifriction cast iron at present.But because single material can not be taken into account the particular requirement that various field working conditions exist at aspect mechanical mechanics properties such as intensity, hardness, plasticity and toughness, so time limit of service is still very short or be difficult to satisfy the needs of various operating modes.In recent years, composite study and development are very fast, many wearing composite materials have appearred, as the particle enhanced steel iron base composite material, fiber reinforcement steel-based composite material etc., the application of these wearing composite materials improves the wear resistance of part and work-ing life greatly, but because the preparation technology of these wearing composite materials is difficult to control stabilization, homogeneity as particle wild phase in the particle enhanced steel iron base composite material is difficult to control, makes applying of wearing composite material be restricted.At different operating modes, further investigate from aspects such as material, internal structure, manufacturing process, develop a kind of preparation technology of new wearing composite material, to improve the wear resistance of high-abrasive material.In the prior art, the recombining process that adopts steel, steel alloy wire cloth and ceramic wear-resisting material is arranged, the performance index such as wearability of material are improved and improved, but these technology wear resisting propertys raisings are not remarkable, the composite material toughness that obtains is relatively poor.In the prior art, also have by technology part whole nitrogenize raising piece surface wear resisting property, but this technology can only form very thin nitride layer in whole appearances of whole part, can not improve the wear resistance of parts locally and the thickness of adjustment wearing layer as required.
Summary of the invention
The technical problem to be solved in the present invention is: overcome the deficiencies in the prior art, a kind of preparation technology of boride silk net steel-based composite material is provided, can better meet various working requirements such as shock resistance, wear-resistant, corrosion-resistant, high thermal resistance with the matrix material of this method preparation, have long service life, advantage that price is low.
The technical scheme of technical solution problem of the present invention is achieved in that this preparation technology may further comprise the steps:
(1), uses knitting metallic silk net with metal wire;
(2), fill up boron powder in the wire cloth slit and put into vacuum oven and carry out 1100 ℃～1400 ℃ insulations 1～8 hour down, the metallic element of wire cloth and boron are fully reacted, generation high rigidity, wear-resistant, corrosion-resistant, resistant to elevated temperatures boride silk net;
(3), the boride silk net of making is fixed on the corresponding site of wear-resisting workpiece casting mold, mould assembly, cast;
(4), steel-smelting, iron material, obtain liquid steel, iron material;
(5), adopt castmethod that liquid steel, iron material are poured in the casting mold of wear-resisting workpiece.
Described wire is that diameter is titanium, zirconium, vanadium, niobium, tantalum, chromium, molybdenum or the tungsten wire of 0.01～2.5mm.
Described wire cloth is woven into single or multiple lift rectangle or square, and its spacing is at 0.01～10.0mm, also can suitably increase the wire cloth spacing according to the operating mode needs.
Described wire cloth carries out cutting, and is pressed into the shape consistent with wear-resisting workpiece according to wear-resisting workpiece position of placing boride silk net and shape and the size that size is determined wire cloth.
The wire cloth of making desired shape, size is carried out surface derusting, scrubbing, oil removing, removes processing such as surface scale.
It is gravity sand mold casting, rotary casting, counter-pressure casting, low-pressure casting or suction pouring that described step (5) adopts castmethod.
The invention has the beneficial effects as follows:
1, boride silk net steel-based composite material of the present invention, wire cloth is carried out boronising to be handled, obtain high rigidity, wear-resisting, corrosion-resistant, resistant to elevated temperatures boride silk net, method with casting prepares boride silk net steel, iron base composite material then, utilize boride silk net to strengthen matrix metal on the one hand, wear resistance, the high thermal resistance of matrix metal have been improved, on the other hand, solved in the particulate reinforced composite preparation, the hard point is difficult to the difficult problem of homogenizing, and the high temperature resistant boride silk net of hard, wear-resistant is arbitrarily distributed in metal.
2, boride silk net metal-base composites preparation technology of the present invention both can be fixed in boride silk net the part of casting mold, pouring liquid metal postcooling, obtain the part that local wear resistance improves, composite bed thickness also can require to adjust according to the part applying working condition; Boride silk net can be fixed in again in the whole casting mold die cavity, pouring liquid metal postcooling is to improve wear-resisting, the high thermal resistance of whole part.
3, this process controllability is strong, yield rate is high, the quality of production is stable, is applicable to wear-resisting, the high temperature-resistant part of Any shape, any size specification, wide application.
Description of drawings
Below in conjunction with embodiment the present invention is described in further detail:
Fig. 1 is preparation technology's schema of boride silk net metal-base composites of the present invention;
Fig. 2 is a ball grinding machine lining board front view of the present invention;
Fig. 3 is a ball grinding machine lining board side-view of the present invention;
Fig. 4 is ball grinding machine lining board of the present invention and ball mill barrel wiring layout;
Fig. 5 is the boride silk net side-view of the present invention after being shaped;
Fig. 6 is a matrix material ball grinding machine lining board side-view of the present invention;
Fig. 7 is a roll sectional view of the present invention;
Fig. 8 is roll Mo of the present invention
2B
5The silk screen sectional view;
Fig. 9 is the composite material roller sectional view.
Embodiment
It is titanium, zirconium, vanadium, niobium, tantalum, chromium, molybdenum or the tungsten wire of 0.01～2.5mm that wire of the present invention can adopt diameter.
Castmethod of the present invention can adopt the castmethod of gravity sand mold casting, rotary casting, counter-pressure casting, low-pressure casting, suction pouring.According to wear-resisting, corrosion-resistant, high temperature-resistant part characteristics, select the castmethod of employing gravity sand mold casting or rotary casting, counter-pressure casting, low-pressure casting, suction pouring, and make casting wear-resistant, corrosion-resistant, high temperature-resistant part casting mold, determine in casting mold, to place the position of zirconium nitride wire simultaneously according to working condition requirement, thereby determine the shape and the size of zirconium nitride wire.
Zirconium wire cloth of the present invention is woven into single or multiple lift rectangle or square according to wearing layer thickness.Wearing layer is thin can be woven into individual layer, and wear-resisting bed thickness can be woven into multilayer.
Ball grinding machine lining board embodiment:
Shown in Fig. 1 to 6, a screw hole 4 is arranged on the ball grinding machine lining board 3.By bolt 5 ball grinding machine lining board 3 is connected on the ball mill barrel 6.
Owing to bigger cambered surface 8 on the ball grinding machine lining board 3 in the practical application contacts with ball mill barrel 6, ball grinding machine lining board 3 begins wearing and tearing by little cambered surface 7, according to working condition requirement, should guarantee that little cambered surface 7 places are wear-resisting.During casting, should boride silk net 1 be set in the corresponding position of the little cambered surface 7 in mould cavity bottom, and adopt the castmethod (also can adopt the castmethod of counter-pressure casting, low-pressure casting, suction pouring) of gravity sand mold casting, make the casting casting mold with quartz sand.Ball mill when work ball grinding machine lining board 3 wears up to 5 on bolt at most and has all ground, remaining liner plate will fall down from ball mill barrel 6, so the thickness of boride silk net 1 should be the width from little cambered surface 7 to bolt 5 heads, the length and width size of boride silk net 1 is consistent with the length and width of ball grinding machine lining board 3.
Present embodiment adopts the chromium boride silk screen, also can adopt titanium boride, zirconium boride 99.5004323A8ure, vanadium boride, niobium (Nb) boride, tantalum boride, molybdenum boride, tungsten boride.Metallic substance adopts high mangaenese steel.
Be example now with chromium boride silk screen-high mangaenese steel ball grinding machine lining board.
Silk screen-high mangaenese steel ball grinding machine lining board step is as follows to make chromium boride:
1. selecting diameter for use is the chromium wire of 0.01～2.5mm.
2. with chromium metal wire knitted multilayer square or rectangle chromium wire cloth, chromium wire spacing generally is controlled at 0.01～10.0mm in the chromium wire cloth.
3. shape and the size of determining the chromium wire cloth according to the position of placing chromium boride silk screen 1 and size carried out cutting, and is pressed into the arcuate shape consistent with ball grinding machine lining board 3.
4. to chromium wire cloth acid or washing with acetone, carry out surface derusting, scrubbing, oil removal treatment; Remove the oxide skin on chromium wire cloth surface with alkali lye.
5. the chromium wire cloth hole that will be pressed into arcuate shape consistent with ball grinding machine lining board 3 and rust cleaning, scrubbing, oil removing, remove behind the descaling fills up boron powder, put into vacuum oven then, be incubated 1～8 hour down at 1100 ℃～1400 ℃, the chromium element and the boron of chromium wire cloth are fully reacted, generate high rigidity, wear-resistant, corrosion-resistant, resistant to elevated temperatures chromium boride, produce chromium boride silk screen (1); As shown in Figure 5.
6. chromium boride silk screen 1 is fixed on the corresponding site in the casting mold die cavity, mould assembly waits to be cast.
7. melting high mangaenese steel 2 molten metals, then liquid high mangaenese steel 2 is poured in the casting mold die cavity that is fixed with chromium boride silk screen 1, make liquid high mangaenese steel 2 be full of casting mold die cavity and chromium boride silk screen 1 hole, after treating that high mangaenese steel solidifies fully, cools off, remove casting mold, gating system, overlap, burr, the chromium boride silk screen high-manganese steel compound material ball grinding machine lining board that promptly to prepare with chromium boride silk screen 1 wear-resisting, fine corrosion resistance be wild phase.See Fig. 6.
The also available graphitic cast iron of high mangaenese steel 2, spheroidal graphite cast iron, cast alloy iron, antifriction cast iron in the present embodiment; Can use basic, normal, high carbon steel; Can be that basic, normal, high steel alloy replaces.
Embodiment 2
Roll embodiment
As shown in Figs. 7-9, roll 9 is that a cross section is an annular column part, roll external cylindrical surface 10 is positions easy to wear in actual applications, therefore require roll external cylindrical surface 10 wear-resisting, so when casting is placed in boride silk net 1 in the casting mold die cavity and roll external cylindrical surface 10 corresponding positions, to improve the wear resistance of roll external cylindrical surface 10.The shape of boride silk net 1 is that the cross section is the cylindric of annular, and the external cylindrical surface of boride silk net 1 is consistent with roll external cylindrical surface 10 size shapes, and the inner cylinder face diameter of boride silk net 1 is decided by the external cylindrical surface wear pattern.
Present embodiment adopts Mo
2B
5Silk screen can also adopt titanium boride, zirconium boride 99.5004323A8ure, vanadium boride, chromium boride, niobium (Nb) boride, tantalum boride, molybdenum boride, tungsten boride silk screen.Metallic substance adopts graphitic cast iron.
Now with Mo
2B
5Silk screen-graphitic cast iron roll is an example
Make Mo
2B
5Silk screen-graphitic cast iron roll step is as follows:
1. selecting diameter for use is the molybdenum silk of 0.01～2.5mm.
2. with molybdenum silk braiding multilayer rectangle molybdenum silk screen, molybdenum silk spacing generally is controlled at 0.01～10.0mm in the molybdenum silk screen.
3. according to placing Mo
2B
5The position of silk screen 1 and size are determined the shape and the size of molybdenum silk screen, carry out cutting, and being rolled into the cross section is the annular right cylinder.
4. to being rolled into molybdenum silk screen acid or the washing with acetone that the cross section is a circular cylinder, carry out surface derusting, scrubbing, oil removal treatment; Remove the oxide skin on molybdenum silk screen surface with alkali lye.
5. the molybdenum silk screen hole that will be rolled into the cross section and be circular cylinder and rust cleaning, scrubbing, oil removing, remove behind the descaling fills up boron powder, put into vacuum oven then, be incubated 1～8 hour down at 1100 ℃～1400 ℃, the metallic element and the boron of molybdenum silk screen are fully reacted, generate high rigidity, wear-resistant, corrosion-resistant, resistant to elevated temperatures Mo
2B
5, produce Mo
2B
5Silk screen 1; As shown in Figure 8.
6. with Mo
2B
5Silk screen 1 is fixed on the corresponding site of casting mold die cavity, and mould assembly waits to be cast.
7. melting graphitic cast iron 2 molten metals pour into the casting mold die cavity with liquid ash cast iron 2 then, make liquid ash cast iron 2 be full of casting mold die cavity and Mo
2B
5Silk screen 1 hole, treat that graphitic cast iron solidifies fully, cools off after, remove casting mold, gating system, overlap, burr, promptly prepare with the Mo wear-resisting, corrosion-resistant, that resistance to elevated temperatures is good
2B
5Silk screen 1 is the Mo of wild phase
2B
5Silk screen graphitic cast iron composite material roller.See Fig. 9.
The also available spheroidal graphite cast iron of graphitic cast iron 2, cast alloy iron, antifriction cast iron in the present embodiment; Can use basic, normal, high carbon steel; Can also replace with basic, normal, high steel alloy.
The preparation of, high temperature-resistant part wear-resisting, corrosion-resistant for other except that need conversion metallic substance 2 and boride silk net 1 geomery, can be adopted the processing step identical with embodiment one, two.
Claims (6)
1, a kind of preparation technology of boride silk net steel-based composite material is characterized in that: this preparation technology may further comprise the steps:
(1), uses knitting metallic silk net with metal wire;
(2), fill up boron powder in the wire cloth slit and put into vacuum oven and carry out 1100 ℃～1400 ℃ insulations 1～8 hour down, the metallic element of wire cloth and boron are fully reacted, generation high rigidity, wear-resistant, corrosion-resistant, resistant to elevated temperatures boride silk net;
(3), the boride silk net of making is fixed on the corresponding site of wear-resisting workpiece casting mold, mould assembly, cast;
(4), steel-smelting, iron material, obtain liquid steel, iron material;
(5), adopt castmethod that liquid steel, iron material are poured in the casting mold of wear-resisting workpiece.
2, according to the preparation technology of the described boride silk net steel-based composite material of claim 1, it is characterized in that: described wire is that diameter is titanium, zirconium, vanadium, niobium, tantalum, chromium, molybdenum or the tungsten wire of 0.01～2.5mm.
3, according to the preparation technology of claim 1 or 2 described boride silk net steel-based composite materials, it is characterized in that: described wire cloth is woven into single or multiple lift rectangle or square, its spacing is at 0.01～10.0mm, also can suitably increase the wire cloth spacing according to the operating mode needs.
4, according to the preparation technology of the described boride silk net steel-based composite material of claim 3, it is characterized in that: described wire cloth is according to wear-resisting workpiece position of placing boride silk net and shape and the size that size is determined wire cloth, carry out cutting, and be pressed into the shape consistent with wear-resisting workpiece.
5, according to the preparation technology of the described boride silk net steel-based composite material of claim 4, it is characterized in that: the wire cloth of making desired shape, size is carried out surface derusting, scrubbing, oil removing, removes processing such as surface scale.
6, according to the preparation technology of the described boride silk net steel-based composite material of claim 1, it is characterized in that: it is gravity sand mold casting, rotary casting, counter-pressure casting, low-pressure casting or suction pouring that described step (5) adopts castmethod.
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| CNB2007100174323A CN100443622C (en) | 2007-02-14 | 2007-02-14 | Preparing technique of boride silk net steel-based composite material |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101817069A (en) * | 2010-04-01 | 2010-09-01 | 钱兵 | Manufacture technology for compositing high-chromium alloy ceramic grain composite on surface of wear-proof machine part |
| CN101844208A (en) * | 2010-04-01 | 2010-09-29 | 钱兵 | Production process of high-chromium alloy ceramic particle composite grids |
| CN102071378A (en) * | 2011-01-14 | 2011-05-25 | 南京信息工程大学 | Wear resistant steel material and preparation method thereof |
| CN102071380A (en) * | 2011-01-14 | 2011-05-25 | 南京信息工程大学 | Wear resistant mottled cast iron material and preparation method thereof |
| CN102191422A (en) * | 2011-04-12 | 2011-09-21 | 西安交通大学 | Preparation method of Fe2B bulk/steel-matrix composite |
| CN106756133A (en) * | 2017-03-06 | 2017-05-31 | 华北理工大学 | A kind of active composite material of embedded screen net structure |
| CN113913711A (en) * | 2021-08-31 | 2022-01-11 | 榆林学院 | Dual-scale boride particle beam high manganese steel composite material and preparation method thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57164946A (en) * | 1981-03-31 | 1982-10-09 | Sumitomo Chem Co Ltd | Fiber reinforced metallic composite material |
| JPS59153860A (en) * | 1983-02-19 | 1984-09-01 | Nippon Denso Co Ltd | Composite aluminum material reinforced with carbon fiber and its manufacture |
| JP3753101B2 (en) * | 2002-07-03 | 2006-03-08 | 住友金属工業株式会社 | High strength and high rigidity steel and manufacturing method thereof |
-
2007
- 2007-02-14 CN CNB2007100174323A patent/CN100443622C/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101817069A (en) * | 2010-04-01 | 2010-09-01 | 钱兵 | Manufacture technology for compositing high-chromium alloy ceramic grain composite on surface of wear-proof machine part |
| CN101844208A (en) * | 2010-04-01 | 2010-09-29 | 钱兵 | Production process of high-chromium alloy ceramic particle composite grids |
| CN102071378A (en) * | 2011-01-14 | 2011-05-25 | 南京信息工程大学 | Wear resistant steel material and preparation method thereof |
| CN102071380A (en) * | 2011-01-14 | 2011-05-25 | 南京信息工程大学 | Wear resistant mottled cast iron material and preparation method thereof |
| CN102191422A (en) * | 2011-04-12 | 2011-09-21 | 西安交通大学 | Preparation method of Fe2B bulk/steel-matrix composite |
| CN102191422B (en) * | 2011-04-12 | 2012-11-28 | 西安交通大学 | Preparation method of Fe2B bulk/steel-matrix composite |
| CN106756133A (en) * | 2017-03-06 | 2017-05-31 | 华北理工大学 | A kind of active composite material of embedded screen net structure |
| CN113913711A (en) * | 2021-08-31 | 2022-01-11 | 榆林学院 | Dual-scale boride particle beam high manganese steel composite material and preparation method thereof |
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| CN100443622C (en) | 2008-12-17 |
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