CN101024872A - Process for preparing active carbon carbonate wire-net metal base composite material - Google Patents
Process for preparing active carbon carbonate wire-net metal base composite material Download PDFInfo
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- CN101024872A CN101024872A CN 200710017437 CN200710017437A CN101024872A CN 101024872 A CN101024872 A CN 101024872A CN 200710017437 CN200710017437 CN 200710017437 CN 200710017437 A CN200710017437 A CN 200710017437A CN 101024872 A CN101024872 A CN 101024872A
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Abstract
The invention discloses an activated carbon carbide screen metal-base composite preparing process, weaving a metal screen with metal wires; filling activated carbons in holes of the metal screen, then placing them into a vacuum furnace, preserving heat at 1000deg.C-2300deg.C for 1-6 hours to make metal element of the metal screen fully react with the activated carbons to make a carbide screen; fixing the ready-made carbide screen in the corresponding position of a wearable workpiece mould, assembling the mould, and waiting for pouring; melting the metal material and obtaining liquid metal material; adopting the casting process to pour the liquid metal material into the mould; and the made composite can better meet the requirements for various working conditions of impact resistance, corrosion resistance, high temperature resistance, wearability, etc, and has the advantages of long service life and low price.
Description
Technical field
The present invention relates to a kind of preparation technology of wearing composite material, particularly a kind of preparation technology of activated carbon carbonate wire-net metal base composite material.The present invention is applied to that industries such as mine, building materials, metallurgy, electric power and railway are wear-resisting, corrosion-resistant, the manufacturing process of high temperature material.
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 automobile, 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 active carbon carbonate wire-net metal base composite material is provided, can better meet with the matrix material of this method preparation that various working such as shock resistance, erosion resistance, high temperature resistant, wearability require, 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 gac in the hole of wire cloth, put into vacuum oven then,, the metallic element of wire cloth and gac are fully reacted, produce carbonate wire-net 1000 ℃～2300 ℃ insulations 1～6 hour down;
(3), the carbonate wire-net of making is fixed on the corresponding site of wear-resisting workpiece casting mold, mould assembly, etc. to be cast;
(4), iron-melting metal material, obtain liquid metal material;
(5), adopt castmethod that liquid metal material is poured in the casting mold of the wear-resisting workpiece that is fixed with carbonate wire-net.
Described wire is that diameter is titanium, chromium, hafnium, zirconium, vanadium, 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 carbonate wire-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.
Described metallic substance is graphitic cast iron, spheroidal graphite cast iron, cast alloy iron, antifriction cast iron, carbon steel, steel alloy, cobalt-base alloy or nickelalloy.
The invention has the beneficial effects as follows:
1, the present invention carries out carbonizing treatment with wire cloth with gac, obtain high rigidity, wear-resisting, corrosion-resistant, resistant to elevated temperatures carbonate wire-net, method with casting prepares matrix material then, utilize carbide reinforced matrix on the one hand, improved the wear resistance of matrix metal, corrosion-resistant, high thermal resistance, on the other hand, solved in the particulate reinforced composite preparation, wild phase is difficult to the difficult problem that homogenizing distributes, and the present invention can make wild phase arbitrarily distribute in metal as required.
2, among the activated carbon carbonate wire-net metal base composite material preparation technology of the present invention, both can be according to the different operating modes of part use, carbonate wire-net is fixed in the part of casting mold, pouring liquid metallic substance postcooling, obtain the part that the part is wear-resisting, erosion resistance improves, composite bed thickness can be adjusted according to working condition requirement; Carbonate wire-net can be fixed in pouring liquid metal postcooling in the whole casting mold die cavity again, improve wear-resisting, the erosion 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 corrosion-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 a process flow sheet of the present invention;
Fig. 2 is an embodiment of the invention ball grinding machine lining board front view;
Fig. 3 is an embodiment of the invention ball grinding machine lining board side-view;
Fig. 4 is embodiment of the invention ball grinding machine lining board and ball mill barrel wiring layout;
Fig. 5 is a ball grinding machine lining board carbonate wire-net side-view of the present invention;
Fig. 6 is an embodiment of the invention matrix material ball grinding machine lining board side-view;
Fig. 7 is an embodiment of the invention roll sectional view;
Fig. 8 is an embodiment of the invention roll carbonate wire-net sectional view;
Fig. 9 is an embodiment of the invention composite material roller sectional view.
Embodiment
Carbonate wire-net 1 of the present invention can be titanium carbide, chromium carbide, hafnium carbide, zirconium carbide, vanadium carbide, wolfram varbide silk screen.
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 wear-resisting workpiece casting mold die cavity, to place the position of carbonate wire-net simultaneously according to working condition requirement, thereby determine the shape and the size of carbonate wire-net 1, correspondingly determine the shape and the size of wire cloth.
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.
Embodiment
One. ball grinding machine lining board embodiment:
To shown in Figure 6, a screw hole 4 is arranged on the ball grinding machine lining board 3 as Fig. 1.By bolt 5 ball grinding machine lining board 3 is connected on the ball mill barrel 6.
As shown in Figure 2, 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 carbonate wire-net 1 be set in the corresponding position of the little cambered surface 7 of casting mold cavity bottom, and the castmethod (also can adopt the castmethod of counter-pressure casting, low-pressure casting, suction pouring) of employing gravity sand mold casting, make casting with quartz sand and also dry with casting mold.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 carbonate wire-net 1 should be the width from little cambered surface 7 to bolt 5 heads, the length and width size of carbonate wire-net 1 is consistent with the length and width of ball grinding machine lining board 3.
Present embodiment adopts the wolfram varbide silk screen, can also adopt titanium carbide silk screen, chromium carbide silk screen, hafnium carbide silk screen, zirconium carbide silk screen, vanadium carbide silk screen.Be example now with wolfram varbide 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 wolfram varbide:
1. selecting diameter for use is the tungsten wire of 0.01～2.5mm.
2. with tungsten metal wire knitted multilayer square or rectangle tungsten wire cloth, tungsten wire spacing generally is controlled at 0.01～10.0mm in the tungsten wire cloth.
3. shape and the size of determining the tungsten wire cloth according to the position of placing wolfram varbide silk screen 1 and size carried out cutting, and is pressed into the arcuate shape consistent with ball grinding machine lining board 3.
4. the tungsten wire cloth that will be pressed into the arcuate shape consistent with ball grinding machine lining board 3 carries out surface derusting, scrubbing, oil removal treatment with acid or washing with acetone; Remove the oxide skin on tungsten wire cloth surface with alkali lye.
5. the tungsten 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 gac, put into vacuum oven then, under 1000 ℃～2000 ℃, carry out carbonization 1 hour～5 hours, and produced wolfram varbide silk screen 1; As shown in Figure 5.
6. wolfram varbide silk screen 1 is fixed on the corresponding site of casting mold, 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 that is fixed with the wolfram varbide silk screen, make liquid high mangaenese steel 2 be full of casting mold die cavity and carbonate wire-net 1 hole, after treating that high mangaenese steel solidifies fully, cools off, remove casting mold, gating system, overlap, burr, the wolfram varbide silk screen high-manganese steel compound material ball grinding machine lining board that promptly to prepare with wolfram varbide silk screen 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.
Two. roll embodiment:
Extremely shown in Figure 9 as Fig. 7, 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 during casting carbonate wire-net 1 is placed in the corresponding position of roll external cylindrical surface 10 in the casting mold, to improve the wear resistance of roll external cylindrical surface 10.The shape of carbonate wire-net 1 is that the cross section is the cylindric of annular, and external cylindrical surface is consistent with roll external cylindrical surface 10 size shapes, and the inner cylinder face diameter is decided according to the rub proofness on cylindrical surface 10.
Present embodiment adopts the chromium carbide silk screen, can also adopt titanium carbide silk screen, hafnium carbide silk screen, zirconium carbide silk screen, vanadium carbide silk screen, wolfram varbide silk screen, and existing is example with chromium carbide silk screen-graphitic cast iron roll
Silk screen-graphitic cast iron roll step is as follows to make chromium carbide:
1. selecting diameter for use is the chromium wire of 0.01～2.5mm.
2. with chromium metal wire knitted multilayer 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 and the size of placement chromium carbide silk screen 1 carried out cutting, and being rolled into the cross section is the annular right cylinder.
4. be the cylindrical chromium wire cloth of annular acid or washing with acetone to being rolled into the cross section, 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 rolled into circular cylinder and rust cleaning, scrubbing, oil removing, remove behind the descaling fills up gac, puts into vacuum oven then, carries out carbonization 1 hour～5 hours at 1000 ℃～1750 ℃, produces chromium carbide silk screen 1; As shown in Figure 8.
6. chromium carbide silk screen 1 is fixed on the corresponding site of casting mold, mould assembly waits to be cast.
7. melting graphitic cast iron 2 molten metals, then liquid ash cast iron 2 is poured into the casting mold die cavity, make liquid ash cast iron 2 be full of casting mold die cavity and carbonate wire-net 1 hole, after treating that graphitic cast iron 2 solidifies fully, cools off, remove casting mold, gating system, overlap, burr, the chromium carbide silk screen graphitic cast iron composite material roller that promptly to prepare with chromium carbide silk screen 1 wear-resisting, fine corrosion resistance be wild phase.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.
Three. turbine blade embodiment:
Present embodiment adopts the vanadium carbide silk screen, and metallic substance 2 adopts casting nickel alloy K6, and carbonization temperature is 1000 ℃～1600 ℃.Metallic substance 2 can also adopt the casting cobalt-base alloy.Other adopt the step same with embodiment one, two.
Four. gas turbine guide vane embodiment:
Present embodiment adopts the titanium carbide silk screen, and metallic substance 2 adopts cobalt-based casting alloy K44, and carbonization temperature is 1000 ℃～1700 ℃.Metallic substance 2 can also adopt casting nickel alloy.Other adopt the step same with embodiment one, two.
The preparation of, high temperature-resistant part wear-resisting, corrosion-resistant for other removes the material that needs conversion carbonate wire-net 1, outside metallic substance 2 and carbonate wire-net 1 geomery and the carbonization temperature, can adopt the processing step identical with embodiment one, two.
Claims (7)
1, a kind of preparation technology of active carbon carbonate wire-net metal base 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 gac in the hole of wire cloth, put into vacuum oven then,, the metallic element of wire cloth (3) and gac are fully reacted, produce carbonate wire-net 1000 ℃～2300 ℃ insulations 1～6 hour down;
(3), the carbonate wire-net of making is fixed on the corresponding site of wear-resisting workpiece casting mold, mould assembly, etc. to be cast;
(4), iron-melting metal material, obtain liquid metal material;
(5), adopt castmethod that liquid metal material is poured in the casting mold of the wear-resisting workpiece that is fixed with carbonate wire-net.
2, according to the preparation technology of the described active carbon carbonate wire-net metal base composite material of claim 1, it is characterized in that: described wire is that diameter is titanium, chromium, hafnium, zirconium, vanadium, the tungsten wire of 0.01～2.5mm.
3, according to the preparation technology of claim 1 or 2 described active carbon carbonate wire-net metal base 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 active carbon carbonate wire-net metal base composite material of claim 3, it is characterized in that: described wire cloth is according to wear-resisting workpiece position of placing carbonate wire-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 active carbon carbonate wire-net metal base 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 active carbon carbonate wire-net metal base 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.
7, according to the preparation technology of the described active carbon carbonate wire-net metal base composite material of claim 1, it is characterized in that: described metallic substance is graphitic cast iron, spheroidal graphite cast iron, cast alloy iron, antifriction cast iron, carbon steel, steel alloy, cobalt-base alloy or nickelalloy.
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| CNB2007100174376A CN100482845C (en) | 2007-02-14 | 2007-02-14 | Process for preparing active carbon carbonate wire-net metal base composite material |
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| CNB2007100174376A CN100482845C (en) | 2007-02-14 | 2007-02-14 | Process for preparing active carbon carbonate wire-net metal base composite material |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102051550A (en) * | 2011-01-14 | 2011-05-11 | 南京信息工程大学 | Damping wear-resistant zinc alloy material and preparation method thereof |
| CN102051538A (en) * | 2011-01-14 | 2011-05-11 | 南京信息工程大学 | Wear-resistant titanium alloy material and preparation method thereof |
| CN102051551A (en) * | 2011-01-14 | 2011-05-11 | 南京信息工程大学 | Heat-resisting zinc alloy material and preparation method thereof |
| CN103436776A (en) * | 2013-08-01 | 2013-12-11 | 西安交通大学 | Preparation method of carbide strengthening heat-resistant steel matrix composite |
-
2007
- 2007-02-14 CN CNB2007100174376A patent/CN100482845C/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102051550A (en) * | 2011-01-14 | 2011-05-11 | 南京信息工程大学 | Damping wear-resistant zinc alloy material and preparation method thereof |
| CN102051538A (en) * | 2011-01-14 | 2011-05-11 | 南京信息工程大学 | Wear-resistant titanium alloy material and preparation method thereof |
| CN102051551A (en) * | 2011-01-14 | 2011-05-11 | 南京信息工程大学 | Heat-resisting zinc alloy material and preparation method thereof |
| CN102051538B (en) * | 2011-01-14 | 2012-06-13 | 南京信息工程大学 | Wear-resistant titanium alloy material and preparation method thereof |
| CN102051551B (en) * | 2011-01-14 | 2012-06-20 | 南京信息工程大学 | Heat-resisting zinc alloy material and preparation method thereof |
| CN102051550B (en) * | 2011-01-14 | 2012-09-19 | 南京信息工程大学 | Damping wear-resistant zinc alloy material and preparation method thereof |
| CN103436776A (en) * | 2013-08-01 | 2013-12-11 | 西安交通大学 | Preparation method of carbide strengthening heat-resistant steel matrix composite |
| CN103436776B (en) * | 2013-08-01 | 2016-02-24 | 西安交通大学 | A kind of carbide strengthens the preparation method of Heat Resistant Steel Composites |
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Granted publication date: 20090429 Termination date: 20110214 |