CN103305712A - Production method of titanium carbide-based hard alloy - Google Patents
Production method of titanium carbide-based hard alloy Download PDFInfo
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- CN103305712A CN103305712A CN2013102171467A CN201310217146A CN103305712A CN 103305712 A CN103305712 A CN 103305712A CN 2013102171467 A CN2013102171467 A CN 2013102171467A CN 201310217146 A CN201310217146 A CN 201310217146A CN 103305712 A CN103305712 A CN 103305712A
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Abstract
The invention discloses a production method of a titanium carbide-based hard alloy which is prepared by a vacuum sintering method. The method comprises the following steps: wet-milling titanium carbide powder, nickel powder and molybdenum powder together; and performing liquid phase sintering on a green compact in vacuum at 1400-1500 DEG C. The method is characterized in that in preparation of existing raw materials, part of nickel is added into the titanium carbide powder, so that the titanium carbide powder is a mixed raw material comprising a solid solution of titanium carbide and nickel; and the titanium carbide raw material comprises 0.4-6.7% of solid solution of titanium carbide and nickel in percentage by volume.
Description
Technical field
The present invention relates to a kind of making method of Wimet, be specifically related to a kind of titanium carbide base hard alloy production method, belong to the Wimet manufacture technology field.
Background technology
Himet is that main component, nickel molybdenum are the Wimet that bonding is made mutually with titanium carbide (TiC).Be called the sintering metal Wimet again.It has characteristics such as high rigidity, high-wearing feature, is mainly used in the machining of various steel, also can be used as wear-resisting, anti-corrosion part; And along with the exhaustion that faces of Wimet main raw material-tungsten resource, as the substitute of wolfram varbide---the application of titanium carbide more and more is subjected to people's attention.The processing method of present titanium carbide (TicC) CEMENTED CARBIDE PRODUCTION is with TiC, Ni and Mo (or Mo
2C) carry out wet-milling together, pressed compact carries out liquid phase sintering usually under 1300～1500 ℃ in vacuum; Also can adopt infiltration method and self-propagating high-temperature synthesis method to produce.
Adopt infiltration method to produce TiC-Mo2C%26mdash; During the Ni alloy, produce titanium carbide (TiC) porous sintered body (skeleton) in advance, use Ni%26mdash then; Mo melt infiltration skeleton, thus the dense sintering body formed; Adopt the self-propagating high-temperature synthesis method to produce TiC-Mo2C%26mdash; During the Ni alloy, with titanium valve, carbon black, molybdenum powder and nickel powder prepare burden ball milling, drying and the group of pressure, in graphite mo(u)ld, carry out the self-propagating high-temperature building-up reactions then, and combustion wave by after revolve under the load that adds 0.05MN and keep 6～10s.The TiCN Wimet comes down to the mutation of Tic Wimet, and its reparation technology is substantially the same, comprises preparation, shaping, sintering or the hot pressing of compound, when compound prepares, Tic and TiN both can TiC and the form of TiN mixture add, can also Ti (C, N) form of sosoloid adds.
But existing TiC base alloy not only intensity is high and wear no resistance, and by researching and analysing discovery, this mainly is because titanium carbide can not be fine moistening by cobalt (Co) nickel (Ni), so titanium carbide is difficult to fully and nickel (Ni) formation sosoloid in sintering process.Therefore, how to improve TiC base alloy bending strength and just become the gordian technique that to capture with wear resistance.In addition, because the production of TiC is with TiO
2+ C produces in High Temperature Furnaces Heating Apparatus.The C that adds is TiO
2The reductive agent of middle oxygen generates TiC with the Ti reaction again simultaneously.Because technology limits, the TiC that produces is the oxygen height not only, and uncombined carbon also quite high (being generally 0.4%-0.6%).And the uncombined carbon height is also unfavorable to alloy production, can cause alloy the wear resistance that graphite has a strong impact on alloy mutually to occur.Uncombined carbon has suitable difficulty among the TiC but reduce; under the normal alloy sintering temperature, be difficult to continue reaction with TiC and produce the high TiC of combined carbon; but can not add the carbonization again of other metals separately; because the one, cost can increase; the 2nd, produce that the line is busy can prolong, the 3rd, TiC crystal grain can be grown up and be influenced the wear resistance of alloy.Therefore be necessary further to be studied.
Find some about the document material of TiC base alloys by the pertinent literature retrieval, mainly contain relevant with the technology of the present invention is following:
1, the patent No. is CN201110256852.3, denomination of invention is the Chinese invention patent of " a kind of serves as the titanium carbide-titanium carbide tungsten basal body light hard alloy of phase and preparation method thereof that bonds with cobalt nickel ", this patent disclosure a kind of serve as titanium carbide-titanium carbide tungsten basal body light hard alloy and preparation method thereof of bonding phase with cobalt nickel, be intended to solve existingly use that the wolfram varbide substitute exists that the every performance index of Wimet descend, alloy substrate oxidation-resistance and corrosion stability is poor, production cost high-technology problem.Adopt be a kind of with cobalt nickel serve as the bonding phase titanium carbide-titanium carbide tungsten basal body light hard alloy, contain following components by weight proportion: Ti17.24%-43.65%; Ni2.23%-9.68%; Co5.23%-10.51%; W27.37%-57.62%; C10.27%-13.87%.
2, the patent No. is CN201010524049.9, denomination of invention is the Chinese invention patent of " a kind of is the titanium carbide base hard alloy and preparation method thereof of binding agent with the nickel-molybdenum alloy ", this patent disclosure a kind of be the titanium carbide base hard alloy and preparation method thereof of binding agent with the nickel-molybdenum alloy, wherein titanium carbide base hard alloy is made of following raw material by mass percentage: nickel powder is 13-20%, molybdenum powder is 7-10%, and surplus is carbonized titanium powder; Its preparation method is that nickel powder, molybdenum powder and carbonized titanium powder are added wet-milling after-filtration, drying in the ball mill, add paraffin then, dry and the compression molding in back stirs, moulding is placed in the hydrogen atmosphere in 300-500 ℃ of insulation 2-3 hour, with being placed on vacuum tightness 1 * 10-2-5 * 10-2Pa, under temperature 1400-1450 ℃ the condition sintering 1-1.5 hour finished product.The alloy material hardness height of the present invention's preparation, wear resistance, good corrosion resistance, strategic resource consumes low, and porosity is low and cost performance is high, can be used for soft steel (partly) precision work of cutting continuously, also can be used as the body material of diamond-coated tools.
3, the patent No. is CN201010102226.4, denomination of invention is the Chinese invention patent of " a kind of method that reduces titanium carbide and titanium nitride powder oxygen level ", this patent disclosure a kind of method that reduces titanium carbide and titanium nitride powder oxygen level, solid titanium carbide and solid titanium nitride powder are placed trichloromethane liquid respectively, two pressed powders and trichloromethane liquid volume are than between 1: 1～10, the titanium carbide treatment temp is 35～61.7 ℃, the titanium nitride temperature is 40～60 ℃, after no bubble produced, treating processes finished.The present invention removes the titanium dioxide TiO2 oxide film of titanium carbide and titanium nitride powder particle surface with the trichloromethane chemical process, the oxygen level of powder is reduced, solve the high and low problem of mechanical property of base titanium carbonitride porosity because of the powder preparation that the generation oxidation causes in storage and transportation.
Though above-mentioned patent all relates to titanium carbide base hard alloy and preparation method thereof, but all be to adopt conventional titanium carbide powder to prepare alloy, though having mentioned the interpolation nickelalloy, patent 1 and 2 changes alloy property, but all in making processes, add, still not having effectively to solve titanium carbide can not be fine by the moistening problem of cobalt (Co) nickel (Ni), so still there is the deficiency that intensity is not high and wear no resistance in the titanium carbide base hard alloy of making according to these patents, and is necessary this is further studied.
Summary of the invention
Technical problem to be solved by this invention is can not be fine by the moistening deficiency of cobalt (Co) nickel (Ni) at the existing titanium carbide of making titanium carbide base hard alloy, a kind of new titanium carbide base hard alloy making method is provided, and adopting this method can effectively change titanium carbide base hard alloy making titanium carbide can not be fine by the moistening problem of cobalt (Co) nickel (Ni).
For solving the problems of the technologies described above, the technical solution adopted in the present invention is: a kind of titanium carbide base hard alloy making method, the employing vaccum sintering process is made, and carbonized titanium powder, nickel powder and molybdenum powder are carried out wet-milling together, and pressed compact carries out liquid phase sintering usually under 1300～1500 ℃ in vacuum; Its characteristics are, in the preparing raw material part of nickel (Ni) is added in titanium carbide (TiC) powder now, make described titanium carbide (TiC) powder for containing the mixing raw material of titanium carbide (TiC) and nickel (Ni) sosoloid, in described titanium carbide raw material, contain the titanium carbide (TiC) of volume percent 0.4%-6.7% and the sosoloid of nickel (Ni).
Further, described molybdenum powder is the mixture of molybdenum (Mo) and molybdenum carbide (Mo2C); Molybdenum (Mo) and molybdenum carbide (Mo
2C) both blending ratios are 1:1-10; Namely what of uncombined carbon among the TiC partly or entirely to make the Mo2C of alloying ingredient into the Mo powder according to, reaction equation is: 2Mo+C=Mo
2C, and the temperature of Mo powder carbonization just in time is the temperature of alloy production.So just well solve the influence of uncombined carbon height to alloy, thereby improved the use properties of TiC base alloy greatly.
Further, described titanium carbide base hard alloy making method may further comprise the steps at least:
1, makes in the technology of titanium carbide in routine, add the nickel (Ni) of volume percent 0.1%-2.6%, produce the compound carbonizing titanium valve body of the sosoloid of the titanium carbide that contains the 0.4%-6.7% that accounts for total powder and nickel.
2, compound carbonizing titanium valve body is mixed the mixed powder that places the ball mill wet-milling to become to mix with nickel with molybdenum;
3, will grind good mixed powder and place settler to precipitate, elimination moisture places oven dry in the loft drier again;
4, the powder after will drying is broken into pieces, forms the alloy compound;
5, the alloy compound is placed wiping screen(ing) machine ginseng glue mix, formation contains the glue compound;
6, will contain the glue compound places under the press according to desired shape compression moulding;
7, again the blank of compression moulding is placed in the sintering oven vacuum sintering moulding;
8, the blank that sinters is made finished product by precision work.
Further, the ball milling time of described step 1 is 35-38 hour, grind the diameter of particle that comes at the 200-300 order; Described ball mill is the tilting-type ball mill.
Further, the wet-milling of described step 1 refers to carry out ball milling in spirituous solution.
Further, it is to suppress under the press more than 16 tons that the press of described step 3 is pressed into blank, compacting.
Further, during the vacuum sintering of described step 4, fill kinds of protect gas to sintering oven, make whole sintering under the protection of many atmosphere, carry out.
The proportioning of each composition is as follows in made titanium carbide alloy:
Titanium carbide 86-89%
Nickel (Ni) 6-8%
Molybdenum (Mo) and molybdenum carbide (Mo
2C) mixture 4-6%
All the other are impurity
Wherein: molybdenum (Mo) and molybdenum carbide (Mo
2C) blending ratio is 1:1-10.
The present invention contains the titanium carbide powder of the sosoloid of titanium carbide and nickel by employing, and molybdenum (Mo) and molybdenum carbide (Mo
2C) mixing molybdenum powder; and when sintering, charge into many atmosphere protections; improved the solid solubility of titanium carbide and nickel in the Himet greatly; and the oxygen level of the Himet of making is very low; efficiently solving titanium carbide base hard alloy making titanium carbide can not be fine by the moistening problem of cobalt (Co) nickel (Ni), has improved intensity and the hardness of titanium carbide base hard alloy.
Description of drawings
Fig. 1 is process flow diagram of the present invention;
Fig. 2 is that traditional technology TiC base is produced cermet electron-microscope scanning figure;
Fig. 3 produces cermet electron-microscope scanning figure for TiC base of the present invention.
Embodiment
Below will the present invention will be further described by the drawings and specific embodiments, can further be well understood to the purpose, technical solutions and advantages of the present invention.But they are not limitation of the invention.
Accompanying drawing 1 has provided a process flow diagram of the present invention, by accompanying drawing as can be seen, the present invention relates to a kind of titanium carbide base hard alloy making method, the employing vaccum sintering process is made, carbonized titanium powder, nickel powder and molybdenum powder are carried out wet-milling together, and pressed compact carries out liquid phase sintering usually under 1400～1500 ℃ in vacuum; Its characteristics are, in the preparing raw material part of nickel (Ni) is added in titanium carbide (TiC) powder now, make described titanium carbide (TiC) powder for containing the mixing raw material of titanium carbide (TiC) and nickel (Ni) sosoloid, in described titanium carbide raw material, contain the titanium carbide (TiC) of volume percent 0.4%-6.7% and the sosoloid of nickel (Ni).
Further, described molybdenum powder is molybdenum (Mo) and molybdenum carbide (Mo
2C) mixture; Molybdenum (Mo) and molybdenum carbide (Mo
2C) both blending ratios are 1:1-10; Namely according to what of uncombined carbon among the TiC with the Mo of alloying ingredient
2C partly or entirely makes the Mo powder into, and reaction equation is: 2Mo+C=Mo
2C, and the temperature of Mo powder carbonization just in time is the temperature of alloy production.So just well solve the influence of uncombined carbon height to alloy, thereby improved the use properties of TiC base alloy greatly.
Further, described titanium carbide base hard alloy making method may further comprise the steps at least:
1, makes in the technology of titanium carbide in routine, add the nickel (Ni) of volume percent 0.1%-2.6%, produce the compound carbonizing titanium valve body of the sosoloid of the titanium carbide that contains the 0.4%-6.7% that accounts for total powder and nickel.
2, compound carbonizing titanium valve body is mixed the mixed powder that places the ball mill wet-milling to become to mix with nickel with molybdenum;
3, will grind good mixed powder and place settler to precipitate, elimination moisture places oven dry in the loft drier again;
4, the powder after will drying is broken into pieces, forms the alloy compound;
5, the alloy compound is placed wiping screen(ing) machine ginseng glue mix, formation contains the glue compound;
6, will contain the glue compound places under the press according to desired shape compression moulding;
7, again the blank of compression moulding is placed in the sintering oven vacuum sintering moulding;
8, the blank that sinters is made finished product by precision work.
Further, the ball milling time of described step 1 is 35-38 hour, grind the diameter of particle that comes at the 200-300 order; Described ball mill is the tilting-type ball mill.
Further, the wet-milling of described step 1 refers to carry out ball milling in spirituous solution.
Further, it is to suppress under the press more than 16 tons that the press of described step 3 is pressed into blank, compacting.
Further, during the vacuum sintering of described step 4, fill kinds of protect gas to sintering oven, make whole sintering under the protection of many atmosphere, carry out.
The proportioning of each composition is as follows in made titanium carbide alloy:
Titanium carbide 86-89%
Nickel (Ni) 6-8%
Molybdenum (Mo) and molybdenum carbide (Mo
2C) mixture 4-6%
All the other are impurity
Wherein: molybdenum (Mo) and molybdenum carbide (Mo
2C) blending ratio is 1:1-10.
The inventor is by scrutinizing discovery, the TiC Wimet is the same with the WC-Co Wimet, alloy organizing structure and performance depend on the formation of %26delta (Tic)+%26gamma (Ni) two-phase region to a great extent, too high or too low the 3rd phase %26theta phase (uncombined carbon) or the %26epsilon phase (TiNi3) of all can generating of carbon content obviously reduces material property.This situation also is adapted to add molybdenum (or Mo
2C) TiC%26mdash; The Ni Wimet is along with Mo
2The raising of C content, two-phase region are to the low-carbon (LC) side shifting, and the width of two-phase region also increases.The performance of TiC%26mdashMo%26mdashNi Wimet is even also be subjected to nickel content, Mo in the two-phase region scope
2The influence of C content, carbide amount and %26gamma phase composition (alloy carbon content), carbide granularity, textural defect and size thereof.The density of TiC Wimet is a very responsive performance, and density reduces slightly, and alloy property is obviously descended.In the TiC%26mdashMo%26mdashNi alloy, when one timing of molybdenum content, increase the rising of alloy bending strength, hardness decline with nickel content; When one timing of nickel content, alloy bending strength and hardness increase with molybdenum content and improve, and after molybdenum content was increased to certain limit, the intensity of alloy and hardness then increased with molybdenum content and reduces.When the carbon content of alloy be theoretical content 94%～96% the time, alloy has the highest intensity and hardness value.
Therefore make the TiC Wimet to give one's full attention to following some:
The first, the oxygen of TiC is low.TiC is in the production technique of carbon tube furnace, and its reactive chemistry equation is: TiO
2+ 3C=TiC+2CO ↑.Because the CO gas that produces can not timely and effectively discharge, therefore, to a certain extent, above-mentioned reaction is reversible.Thereby the TiC oxygen level of producing is generally all about 0.5%.The alloy strength of producing with the high TiC of oxygen level is low, density is low and wear no resistance.
The second, because cobalt nickel is relatively poor to the wettability of TiC, under normal alloy sintering temperature and time, the solid solubility of TiC and cobalt nickel (TiC base alloy mainly is to use nickel) is not high.Therefore, the solid solubility of raising TiC and nickel (Ni) is to improve a very important index of alloy strength and wear resistance.
In order to address the above problem, the present invention has taked following measure:
1, before producing the TiC Wimet, the method that adopts part Ni powder to add has earlier namely just been added part Ni powder when producing TiC.Because the production of TiC is with TiO
2Sintering is finished in the carbon tube furnace of+C about 2300 degree.Except small part Ni can volatilize, can both generate good sosoloid with TiC greatly like this.Thereby improved the solid solubility of TiC and Ni greatly.And in the production process of TiC, also can suitably reduce sintering temperature and reduce production cost.
2. on the technology, according to what of uncombined carbon among the TiC with the Mo of alloying ingredient
2C partly or entirely makes the Mo powder into, and reaction equation is: 2Mo+C=Mo2C, and the temperature of Mo powder carbonization just in time is the temperature of alloy production.So just well solve the influence of uncombined carbon height to alloy, not only increased the bending strength of alloy greatly, simultaneously, also improved the wear resistance of alloy greatly, thereby improved the use properties of TiC base alloy greatly.Owing to alloy bending strength and wear resistance are improved greatly, thereby have expanded the use range of TiC base alloy greatly.Traditional TiC base alloy only is applied to the workpiece of soft, low-loss.And by the follow-on TiC of the present invention base alloy owing to do not use any wolfram varbide and tantalum carbide niobium, not only cost reduces (general be tradition 50%) greatly, and use range can enlarge 7 to 10 times.The trade mark alloy of the YT30. of almost completely alternative W-Co-Ti carbide alloy, YT15 and YT14.
Embodiment one
A kind of titanium carbide base hard alloy making method is main component with compound carbonizing titanium valve body, and adds an amount of nickel and molybdenum, makes titanium carbide base hard alloy by adopting vaccum sintering process; Carbonized titanium powder, nickel powder and molybdenum powder are carried out wet-milling together, and pressed compact carries out liquid phase sintering usually under 1400～1500 ℃ in vacuum; Its characteristics are that described titanium carbide (TiC) contains the titanium carbide (TiC) of volume percent 0.4%% and the sosoloid of nickel (Ni) for containing the mixing raw material of titanium carbide (TiC) and nickel (Ni) sosoloid in described titanium carbide raw material.
The proportioning of each composition is as follows in made titanium carbide base hard alloy:
Titanium carbide 89%
Nickel (Ni) 6%
The mixture 4% of molybdenum (Mo) and molybdenum carbide (Mo2C)
All the other are impurity
Wherein: molybdenum (Mo) and molybdenum carbide (Mo
2C) blending ratio is 1:1;
Make the titanium carbide production method of above-mentioned titanium carbide base hard alloy, may further comprise the steps at least:
1, makes in the technology of titanium carbide in routine, add the nickel (Ni) of volume percent 0.1%-2.6%, produce the compound carbonizing titanium valve body of the sosoloid of the titanium carbide that contains the 0.4%-6.7% that accounts for total powder and nickel;
2, titanium carbide powder and nickel and molybdenum are mixed to place with alcohol be the mixed powder that the ball mill wet-milling of medium becomes to mix;
3, will grind good mixed powder and place settler to precipitate, elimination alcohol places oven dry in the loft drier again;
4, the powder after will drying is broken into pieces, forms the alloy compound;
5, the alloy compound is placed wiping screen(ing) machine ginseng glue mix, formation contains the glue compound;
6, will contain the glue compound places under the press according to desired shape compression moulding;
7, again the blank of compression moulding is placed in the sintering oven vacuum sintering moulding;
8, the blank that sinters is made finished product by precision work.
Further, the ball milling time of described step 1 is 35-38 hour, grind the diameter of particle that comes at the 200-300 order; Described ball mill is the tilting-type ball mill.
Further, the wet-milling of described step 1 refers to carry out ball milling in spirituous solution.
Further, it is to suppress under the press more than 16 tons that the press of described step 3 is pressed into blank, compacting.
Further, during the vacuum sintering of described step 4, fill nitrogen (N to sintering oven
2), make whole sintering at nitrogen (N
2) protection under carry out.
Embodiment two
A kind of titanium carbide base hard alloy making method is main component with compound carbonizing titanium valve body, and adds an amount of nickel and molybdenum, makes titanium carbide base hard alloy by adopting vaccum sintering process; Carbonized titanium powder, nickel powder and molybdenum powder are carried out wet-milling together, and pressed compact carries out liquid phase sintering usually under 1400～1500 ℃ in vacuum; Its characteristics are that described titanium carbide (TiC) contains the titanium carbide (TiC) of volume percent 1.6% and the sosoloid of nickel (Ni) for containing the mixing raw material of titanium carbide (TiC) and nickel (Ni) sosoloid in described titanium carbide raw material.
The proportioning of each composition is as follows in made titanium carbide base hard alloy:
Titanium carbide 86%
Nickel (Ni) 8%
Molybdenum (Mo) and molybdenum carbide (Mo
2C) mixture 5%
All the other are impurity
Wherein: molybdenum (Mo) and molybdenum carbide (Mo
2C) blending ratio is 1:5;
The titanium carbide production method of making above-mentioned titanium carbide base hard alloy is the same with implementing one.
Embodiment three
A kind of titanium carbide base hard alloy making method is main component with the titanium carbide, and adds an amount of nickel and molybdenum, makes titanium carbide base hard alloy by adopting vaccum sintering process; Carbonized titanium powder, nickel powder and molybdenum powder are carried out wet-milling together, and pressed compact carries out liquid phase sintering usually under 1400～1500 ℃ in vacuum; Its characteristics are that described titanium carbide (TiC) contains the titanium carbide (TiC) of volume percent 1.2% and the sosoloid of nickel (Ni) for containing the mixing raw material of titanium carbide (TiC) and nickel (Ni) sosoloid in described titanium carbide raw material.
The proportioning of each composition is as follows in made titanium carbide base hard alloy:
Titanium carbide 88%
Nickel (Ni) 7%
Molybdenum (Mo) and molybdenum carbide (Mo
2C) mixture 4%
All the other are impurity
Wherein: molybdenum (Mo) and molybdenum carbide (Mo
2C) blending ratio is 1:10;
The titanium carbide production method of making above-mentioned titanium carbide base hard alloy is the same with implementing one.
The above only is preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (8)
1. a titanium carbide base hard alloy making method adopts vaccum sintering process to make, and carbonized titanium powder, nickel powder and molybdenum powder are carried out wet-milling together, and pressed compact carries out liquid phase sintering usually under 1400～1500 ℃ in vacuum; It is characterized in that, in the preparing raw material part of nickel (Ni) is added in titanium carbide (TiC) powder now, make described titanium carbide (TiC) powder for containing the mixing raw material of titanium carbide (TiC) and nickel (Ni) sosoloid, in described titanium carbide raw material, contain the titanium carbide (TiC) of volume percent 0.4%-6.7% and the sosoloid of nickel (Ni).
2. titanium carbide base hard alloy making method as claimed in claim 1 is characterized in that, described molybdenum powder is molybdenum (Mo) and molybdenum carbide (Mo
2C) mixture; Molybdenum (Mo) and molybdenum carbide (Mo
2C) both blending ratios are 1:1-10; Namely according to what of uncombined carbon among the TiC with the Mo of alloying ingredient
2C partly or entirely makes the Mo powder into, and reaction equation is: 2Mo+C=Mo
2C, and the temperature of Mo powder carbonization just in time is the temperature of alloy production; So just well solve the influence of uncombined carbon height to alloy, thereby improved the use properties of TiC base alloy greatly.
3. titanium carbide base hard alloy making method as claimed in claim 2 is characterized in that, described titanium carbide base hard alloy making method may further comprise the steps at least:
A, make in the technology of titanium carbide in routine, add the nickel (Ni) of volume percent 0.1%-2.6%, produce the compound carbonizing titanium valve body of the sosoloid of the titanium carbide that contains the 0.4%-6.7% that accounts for total powder and nickel;
B, compound carbonizing titanium valve body and nickel are mixed the mixed powder that places the ball mill wet-milling to become to mix with molybdenum;
C, will grind good mixed powder and place settler to precipitate, elimination moisture places oven dry in the loft drier again;
D, the powder after will drying are broken into pieces, form the alloy compound;
E, the alloy compound placed wipe screen(ing) machine ginseng glue and mix, form and contain the glue compound;
F, will contain the glue compound and place under the press according to desired shape compression moulding;
G, the blank with compression moulding places in the sintering oven vacuum sintering moulding again;
H, the blank that sinters is made finished product by precision work.
4. titanium carbide base hard alloy making method as claimed in claim 3 is characterized in that, the ball milling time of described step 1 is 35-38 hour, grind the diameter of particle that comes at the 200-300 order; Described ball mill is the tilting-type ball mill.
5. titanium carbide base hard alloy making method as claimed in claim 3 is characterized in that, the wet-milling of described step 1 refers to carry out ball milling in spirituous solution.
6. titanium carbide base hard alloy making method as claimed in claim 3 is characterized in that, it is to suppress under the press more than 16 tons that the press of described step 3 is pressed into blank, compacting.
7. titanium carbide base hard alloy making method as claimed in claim 3 is characterized in that, during the vacuum sintering of described step 4, fills kinds of protect gas to sintering oven, makes whole sintering carry out under the protection of many atmosphere;
The proportioning of each composition is as follows in made titanium carbide alloy:
Titanium carbide 86-89%
Nickel (Ni) 6-8%
Molybdenum (Mo) and molybdenum carbide (Mo
2C) mixture 4-6%
All the other are impurity.
8. titanium carbide base hard alloy making method as claimed in claim 7 is characterized in that, described molybdenum (Mo) and molybdenum carbide (Mo
2C) blending ratio is 1:1-10.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103468995A (en) * | 2013-09-27 | 2013-12-25 | 株洲市振湘实业有限责任公司 | TiC-Ni-Mo cemented carbide material for abrasion-resisting plate and manufacturing method for TiC-Ni-Mo cemented carbide material |
| CN104651696A (en) * | 2015-03-13 | 2015-05-27 | 潍坊学院 | TiC dispersion-strengthened molybdenum alloy and preparation method thereof |
| CN105886871A (en) * | 2016-05-13 | 2016-08-24 | 株洲中工硬质合金工具有限责任公司 | High-strength hard alloy with titanium carbide as main component and preparation method of high-strength hard alloy |
| CN109518059A (en) * | 2018-10-23 | 2019-03-26 | 株洲三鑫硬质合金生产有限公司 | A kind of TiC-Fe-Ni-Cu-Mo2C cermet and preparation method thereof |
| CN111001801A (en) * | 2019-12-04 | 2020-04-14 | 福达合金材料股份有限公司 | Silver tungsten carbide-molybdenum composite electrical contact material, framework powder thereof and preparation method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103468995A (en) * | 2013-09-27 | 2013-12-25 | 株洲市振湘实业有限责任公司 | TiC-Ni-Mo cemented carbide material for abrasion-resisting plate and manufacturing method for TiC-Ni-Mo cemented carbide material |
| CN104651696A (en) * | 2015-03-13 | 2015-05-27 | 潍坊学院 | TiC dispersion-strengthened molybdenum alloy and preparation method thereof |
| CN105886871A (en) * | 2016-05-13 | 2016-08-24 | 株洲中工硬质合金工具有限责任公司 | High-strength hard alloy with titanium carbide as main component and preparation method of high-strength hard alloy |
| CN105886871B (en) * | 2016-05-13 | 2018-01-23 | 株洲中工硬质合金工具有限责任公司 | A kind of high strength cemented carbide and preparation method using titanium carbide as main component |
| CN109518059A (en) * | 2018-10-23 | 2019-03-26 | 株洲三鑫硬质合金生产有限公司 | A kind of TiC-Fe-Ni-Cu-Mo2C cermet and preparation method thereof |
| CN111001801A (en) * | 2019-12-04 | 2020-04-14 | 福达合金材料股份有限公司 | Silver tungsten carbide-molybdenum composite electrical contact material, framework powder thereof and preparation method |
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| CN103305712B (en) | 2015-04-01 |
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