CN106242536A - A kind of Ceramic Balls of built-in alpha+beta titanium alloys skeleton and preparation method thereof - Google Patents
A kind of Ceramic Balls of built-in alpha+beta titanium alloys skeleton and preparation method thereof Download PDFInfo
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- CN106242536A CN106242536A CN201610650575.7A CN201610650575A CN106242536A CN 106242536 A CN106242536 A CN 106242536A CN 201610650575 A CN201610650575 A CN 201610650575A CN 106242536 A CN106242536 A CN 106242536A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/10—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminium oxide
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
- B28B11/243—Setting, e.g. drying, dehydrating or firing ceramic articles
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- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
- B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
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- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/62605—Treating the starting powders individually or as mixtures
- C04B35/6261—Milling
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/71—Ceramic products containing macroscopic reinforcing agents
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Abstract
Its outer spheres of ceramic of the Ceramic Balls of a kind of built-in alpha+beta titanium alloys skeleton, the skeleton of the integrative-structure being made up of alpha+beta titanium alloys and parcel forms, and manufactures by the way of overall pressing, high temperature sintering；The cumulative volume of alpha+beta titanium alloys skeleton is that the 3 5% of Ceramic Balls volume, length direction are smaller in size than the 70% of spheres of ceramic external diameter；Spheres of ceramic uses alumina-based ceramic material to make.The invention also discloses its preparation method, Profile procoess, high temperature sintering old including dispensing, ball milling, mist projection granulating, feed bin, the polishing of clear powder, finished product such as are dried at the operation, have carried out a large amount of improvement in Profile procoess, high temperature sintering operation especially.The Ceramic Balls globality of the built-in alpha+beta titanium alloys skeleton of the present invention more preferably, the most broken, and preparation method is possibly realized by the industrialized production that the improvement of Profile procoess, high temperature sintering operation makes the Ceramic Balls of built-in alpha+beta titanium alloys skeleton.
Description
Technical field
The present invention relates to cement manufacture field, particularly relate to Ceramic Balls and the preparation thereof of a kind of built-in alpha+beta titanium alloys skeleton
Method.
Background technology
Cement ball mill have to material strong adaptability, can produce continuously, broken than big, be prone to the thin of speed governing ground prod
The features such as degree.The operation principle of conventional cement ball mill is that material is entered through pan feeding quill shaft spiral equably by feed arrangement
Entering in grinding machine storehouse, have ladder lining board or corrugated liner, the steel ball of built-in different size or Ceramic Balls in this storehouse, barrel body rotation produces
Centrifugal force falls after taking steel ball or Ceramic Balls to certain altitude, and material is produced bang and abrasive action.Cement ball mill is made pottery
Porcelain ball is the conventional grinding material medium of cement ball-milling machine equipment, by touching between cement ball mill Ceramic Balls, material, liner plate
Hit friction and produce ablation, thus the particle diameter of material is reduced further.Therefore, Ceramic Balls hardness in use and wear-resisting
Property be impact one of principal element of grinding shaping effect, simultaneously as ceaselessly clashed into for a long time, mill ball is resisted
Impact property has high requirement.
In prior art, cement ball mill Ceramic Balls has had more employing, great majority to use traditional Al2O3-
CaO-MgO-SiO2 quaternary system, also has a small amount of inventor to improve on its formula, to reach special effect.Such as this
A person of good sense has applied for the many parts of Ceramic Balls using new formulation before this, has high rigidity, high temperature resistant, high life, easy-formation, toughness
Well, the effect of the cement high purity produced.
But, in the research of long-term cement ball mill Ceramic Balls, the inventors discovered that, startup, jerk, throwing pendant etc.
Impact cause broken be one of Ceramic Balls modal damage mode, this greatly govern cement ball-milling industry send out
Exhibition.
Titanium is a kind of important structural metal grown up the 1950's, and titanium alloy is because having intensity, plasticity, tough
Property the feature such as high, corrosion resistance good, thermostability, high formability and be widely used in every field, particularly its specific strength superelevation
Advantage is preced with exhausted all metals and alloy.Wherein alpha+beta titanium alloys is two-phase alloys, has good combination property, structure stability
Good, there is good toughness, plasticity and Hot Deformation Performance, unlike pure titanium and alpha titanium alloy, alpha+beta titanium alloys can also pass through
Heat treatment makes alloy strengthening, and the intensity after heat treatment about improves 50%～100% than annealed condition；Elevated temperature strength is high, can be at 400 DEG C
～long-term work at a temperature of 500 DEG C.Utilize the toughness of the refractory metals such as alpha+beta titanium alloys, plasticity, intensity advantages of higher, adopt
By the method implanting alpha+beta titanium alloys skeleton, the globality that can make Ceramic Balls is more preferable, and can be by skeleton when being impacted
Impulsive force is shared, the most broken.
It is implanted into alpha+beta titanium alloys skeleton in Ceramic Balls and belongs to blank field before this, there is no and see that any research is seen in paper
Or patent, the preparation method that can realize its industrialized production is all the more so.
Summary of the invention
For drawbacks described above present in prior art, it is desirable to provide a kind of globality more preferably, the most breakable
The Ceramic Balls of built-in alpha+beta titanium alloys skeleton and the preparation method of its industrialized production can be realized.
To achieve these goals, the present invention is by the following technical solutions: the pottery of a kind of built-in alpha+beta titanium alloys skeleton
Its outer spheres of ceramic of ball, the skeleton of its integrative-structure being made up of alpha+beta titanium alloys and parcel forms, by overall pressing, height
The mode of temperature sintering manufactures；The cumulative volume of alpha+beta titanium alloys skeleton is the 3-5% of Ceramic Balls volume, and length direction is smaller in size than pottery
The 70% of spheroid external diameter；Spheres of ceramic uses alumina-based ceramic material to make.
The Ceramic Balls of above-mentioned built-in alpha+beta titanium alloys skeleton, wherein: described alpha+beta titanium alloys skeleton is that integral die-cast becomes
The dendroid of type or herring-bone form structure.
The Ceramic Balls of above-mentioned built-in alpha+beta titanium alloys skeleton, wherein: described alpha+beta titanium alloys is specially TC6 titanium alloy.
The Ceramic Balls of above-mentioned built-in alpha+beta titanium alloys skeleton, wherein: the formula of described spheres of ceramic is: aluminium oxide 92-
95%, iron sesquioxide 0.5-2%, Kaolin 0.8-3%, carborundum 0.2-2%, titanium dioxide 1.5-2%, titanium carbide 0.8-1%, two
Molybdenum sulfide 0.3-2%.
The preparation method of the Ceramic Balls of above-mentioned built-in alpha+beta titanium alloys skeleton, including dispensing, ball milling, mist projection granulating, feed bin
The operations such as old, Profile procoess, high temperature sintering, the polishing of clear powder, finished product are dried, wherein:
The most described Profile procoess operation includes following sub-operation:
1) first watering powder: lower semisphere mould is transported to station one by stepping conveying belt, passes through conveying by the powder of ceramic prilling
Pipe is poured into lower semisphere mould, and the moisture control of powder is below 0.5%；
2) skeleton dropping place: lower semisphere mould is transported to station two, then by placing the device of alpha+beta titanium alloys skeleton by entirety pressure
The centre of surface position of the powder that the dendroid of type casting moulding or the alpha+beta titanium alloys skeleton of herring-bone form are placed in lower semisphere mould；
3) spheroid pressing full circle: lower semisphere mould is transported to station three；Powder lot in bags is put into the upper entrance of episphere mould, so
Rear molding press enters in the way of parallel with the upper entrance in episphere mould, on arriving in turn clockwise 90 ° after circular groove,
Molding press is fixed with episphere mould in the vertical direction；Molding press drives episphere mould descending, to episphere mould and lower half subsequently
Ball mould contacts, molding press is counterclockwise half-twist, and molding press and episphere mould in the vertical direction release fixing；Molding press is descending,
Being crushed by the sack of powder lot in bags, its interior powder lot in bags is got into episphere die cavity by press-powder hole;Molding press continues traveling downwardly
To arriving lower interior circular groove, powder lot in bags and alpha+beta titanium alloys skeleton, powder are squeezed into one, form complete Ceramic Balls base；Pressure
Mould machine turns clockwise and continues after 90 ° to rotate, and is limited by the closed section of lower interior circular groove, and molding press drives the rotation of episphere die cavity
Turning, be rotated into walking to few 3 circles, the unnecessary blank on Ceramic Balls base surface is machined away by episphere die cavity；Molding press is mentioned subsequently, band
Dynamic episphere die cavity leaves Ceramic Balls base.
4) ball base transfer: lower semisphere mould is transported to station four, by transfer device, Ceramic Balls base is transferred to high temperature casket
Alms bowl, sprinkles parting sand.
The most described high temperature sintering operation is particularly as follows: will be equipped with the high temperature sagger of the Ceramic Balls base that Profile procoess operation obtains
Send in the tunnel cave that air-tightness is good；In heating process, logical noble gas, high temperature sintering temperature 1350-is kept in tunnel cave
1400 DEG C, firing period 28-30h；High temperature sintering terminate after the type of cooling for be cooled to 780-800 DEG C with kiln, then heat to
870 DEG C, it is incubated 1-2h, then is cooled to 550-650 DEG C with kiln, be incubated 2h, open kiln air cooling subsequently.
The preparation method of the Ceramic Balls of above-mentioned built-in alpha+beta titanium alloys skeleton, wherein: described ball base transfer process uses
Transfer device be negative-pressure adsorption-type.
The preparation method of the Ceramic Balls of above-mentioned built-in alpha+beta titanium alloys skeleton, wherein: the powder filled at station one is pottery
The 48-52% of the total consumption of porcelain ball, the capacity of the powder lot in bags of station three should be the volume in press-powder hole and the 55-of the total consumption of Ceramic Balls
The sum of 58%.
The present invention is without prior art.The patent that the pottery that the present invention uses uses the present inventor before this to apply for is joined
Just, have high rigidity, high temperature resistant, corrosion-resistant, operating power consumption is low, material consumption is low, adhesion is good, jolt capacity is strong, shock resistance antiknock
The advantage that shake, the cement fineness produced and later strength are high；Relative to the most integral sintered, without the Ceramic Balls of built-in metal skeleton
For, the Ceramic Balls of the built-in alpha+beta titanium alloys skeleton of the present invention uses the method implanting alpha+beta titanium alloys skeleton, alpha+beta titanium alloys bone
Frame preferred TC6 titanium alloy, uses integral die-cast molding, skeleton good integrity and facilitate implementation industrialized production；Dendroid or fish
Bone-shaped structure can guarantee that it is combined closely with pottery, so that Ceramic Balls globality is more preferable；Size is moderate, has both ensured die mould
Manufacturing procedure process is convenient, can guarantee that again the globality of Ceramic Balls is more preferable.The Ceramic Balls that the present invention makes both had maintained tradition pottery
The advantage of porcelain ball, can play fully again alpha+beta titanium alloys as the intensity of biphase titanium alloy, plasticity, toughness is high, corrosion resistance is good,
The advantage that thermostability, high formability, specific strength are high, in conjunction with features such as ceramic high abrasion own, high rigidity, and is being rushed
By skeleton, impulsive force can be shared when hitting, the most broken, it is to avoid Ceramic Balls is caused by the impact of startup, jerk, throwing pendant etc.
Broken；And itself is because the thermal coefficient of expansion of titanium is (9.41～10.03) × 10-6/ DEG C, with swollen in sintering process of pottery
Swollen rate is very close to, it is to avoid the ceramic fragmentation caused because of expansion rate difference in intensification temperature-fall period.
Meanwhile, the preparation method of the Ceramic Balls of the built-in alpha+beta titanium alloys skeleton in the present invention, immediate prior art is
The present inventor is in the preparation method of the many parts of Ceramic Balls applied for before this, and its difference is, the present invention is because of built-in α in Ceramic Balls
+ beta-titanium alloy skeleton, uses conventional methods and cannot realize implanting skeleton at all, and therefore Profile procoess operation have employed just powder filling
The sub-operations such as material, skeleton dropping place, spheroid pressing full circle, ball base transfer, advantage is, ball base pressing is because raw material is more than demand, pressure
Solidity is high, and skeleton is tightly combined with ball base；Use rotary cutting full circle, it is not necessary to increase extras, simple and fast；Negative-pressure adsorption
Formula transfer equipment avoids the damage in transfer process to Ceramic Balls.Procedure is numerous and diverse is extremely letter, makes whole Profile procoess operation
Process is succinctly orderly, can realize industrialization and automatically produce；It addition, Ceramic Balls base in sintering process because of pottery not yet molding, its
Internal alpha+beta titanium alloys skeleton at high temperature has the strongest chemism, is very easy to absorb the impurity such as hydrogen, oxygen, nitrogen, carbon,
So high temperature sintering operation is passed through noble gas such as argon, abandon traditional shuttle kiln needing higher temperature, only simultaneously
Use tunnel cave and maximum temperature controlled at 1400 DEG C, it is to avoid the severe oxidation under higher temperature and degraded in mechanical properties；Burn
Terminate the employing of the rear type of cooling and be cooled to 780-800 DEG C with kiln, then heat to 870 DEG C, be incubated 1-2h, then be cooled to 550-with kiln
650 DEG C, being incubated 2h, open kiln air cooling subsequently, being because alpha+beta titanium alloys its mechanical performance of at high temperature long-time heat preservation can be the most bad
Change, (be i.e. warming up to 870 DEG C, be incubated 1-2h by again carrying out heating and carry out isothermal annealing from the alpha phase zone upper limit, colder with kiln
To 550-650 DEG C, it is incubated 2h), both can protect equipment, the time-consuming and energy, mechanical performance can be made again to return to normally
Level, especially its plasticity can be greatly improved, and are more beneficial for using as skeleton.
Accompanying drawing explanation
Fig. 1 is the profile of the Ceramic Balls of the built-in alpha+beta titanium alloys skeleton of the present invention；
Fig. 2 is the schematic flow sheet of the preparation method medium-pressure type manufacturing procedure of the present invention；
Fig. 3 is the structural representation of the episphere mould of the preparation method medium-pressure type manufacturing procedure of the present invention；
Fig. 4 is the top view of Fig. 3；
Fig. 5 is the schematic diagram of the stepping conveying belt of the preparation method medium-pressure type manufacturing procedure of the present invention；
Fig. 6 be the present invention preparation method in high temperature sintering terminate after chilling temperature curve chart.
In figure: lower semisphere mould 1, powder 2, conveying pipeline 3, alpha+beta titanium alloys skeleton 4, episphere mould 5, powder lot in bags 6, pressing mold
Machine 7, transfer device 8, Ceramic Balls base 9, stepping conveying belt 10.Wherein episphere mould 5 contains: upper entrance 51, upper interior circular groove
52, lower interior circular groove 53, episphere die cavity 54, press-powder hole 55, closed section 56.
Detailed description of the invention
The Ceramic Balls of the built-in alpha+beta titanium alloys skeleton of the present invention, as it is shown in figure 1, integral by alpha+beta titanium alloys integral die-cast
Structure, dendroid or the alpha+beta titanium alloys skeleton of herring-bone form structure and wrap up its outer spheres of ceramic composition, pressed by entirety
Close, the mode of high temperature sintering manufactures；Described alpha+beta titanium alloys skeleton cumulative volume is the 3-5% of Ceramic Balls volume, length direction size
Less than spheres of ceramic external diameter 70%；Spheres of ceramic use alumina-based ceramic material make, its formula be aluminium oxide 92-95%,
Iron sesquioxide 0.5-2%, Kaolin 0.8-3%, carborundum 0.2-2%, titanium dioxide 1.5-2%, titanium carbide 0.8-1%, curing
Molybdenum 0.3-2%, embodiment and the detailed proportioning of this formula are discussed in detail in the patent that the present inventor applies for before this, the most superfluous
State.The present invention is to alpha+beta titanium alloys preferably TC6 titanium alloy, and its room temperature strength is high, specific strength is high, plasticity is high, is a kind of pole
For excellent high temperature metal material.
The preparation method of the Ceramic Balls of the built-in alpha+beta titanium alloys skeleton of the present invention, including dispensing, ball milling, mist projection granulating, material
The operations such as storehouse is old, Profile procoess, high temperature sintering, clear powder polishes, finished product is dried, except Profile procoess, high temperature sintering operation and basis
Inventor is outside the patent difference applied for before this, and other operation all has a detailed description.The pressure used in the preparation method of the present invention
Type processing equipment is discussed in detail in another part of invention that the present inventor applies on the same day, because being not belonging to the emphasis of the present invention, this
Place repeats no more.The complete preparation method of the present invention is as follows:
A. dispensing: take all the components by weight percentage, is mixed and stirred for uniformly, preparing mixed material；Configuration PVA is molten simultaneously
Liquid, proportioning is PVA: water=(7-10): 100；
B. ball milling:
1) preliminary grinding: the dispensing taken of step (a) being fallen into a trap adds preliminary grinding milling apparatus, and adds ballstone and water, ratio is material: ball:
Water=1:2.5:(0.7-0.75), stop mill to slurry fineness D90≤8 micron, cross 40 mesh sieves and go out mill；
2) fine grinding: slurry step (b1) obtained adds fine grinding milling apparatus, and adds ballstone and water, ratio is material: ball: water
=1:(2-3): (0.7-0.75), to slurry fineness D50≤1.5 micron, D90≤3.2 micron, stop mill；
3) mix grinding: is added in the slurry that step (b2) is obtained PVA solution 9-12% of configuration, mix grinding by weight in step (a)
0.5-1h, crosses 150 mesh sieves and goes out mill, and carry out except ferrum；
C. mist projection granulating: is added in the slurry that step (b3) is obtained the PVA solution of configuration in appropriate step (a), and squeezes into height
Position slurry tank, controls the hot blast temperature of spray drying tower, leaving air temp and pressure reduction, selects suitably spraying spray sheet diameter, sprays
Mist pelletize, pelletizing crosses 20 mesh sieves；
D. feed bin is old: pelletizing step (c) obtained carries out old, and the old time is no less than 48h；
E., as shown in Fig. 2,3,4,5, Profile procoess includes:
1) first watering powder: lower semisphere mould 1 is transported to station one by stepping conveying belt 10, the powder 2 step d obtained is by defeated
Material pipe 3 is poured into lower semisphere mould 1, and loading is the 48-52% of the total consumption of Ceramic Balls；The moisture control of powder 2 is below 0.5%；
2) skeleton dropping place: lower semisphere mould 1 is transported to station two, then by placing the device of alpha+beta titanium alloys skeleton 4 by entirety
The centre of surface position of the powder 2 that the dendroid of die cast or the alpha+beta titanium alloys skeleton 4 of herring-bone form are placed in lower semisphere mould 1
Put；
3) spheroid pressing full circle: lower semisphere mould 1 is transported to station three；The volume that capacity is press-powder hole 55 is always used with Ceramic Balls
The powder lot in bags 6 of sum of the 55-58% of amount puts into the upper entrance 51 of episphere mould 5, then molding press 7 with in episphere mould 5
The parallel mode of upper entrance 54 enter, on arriving in turn clockwise 90 ° after circular groove 52, molding press 7 and episphere mould 5
In the vertical direction is fixed；Molding press 7 drives episphere mould 5 descending subsequently, contacts to episphere mould 5 with lower semisphere mould 1, pressing mold
Machine 7 is counterclockwise half-twist, molding press 7 and episphere mould 5 in the vertical direction release fixing；Molding press 7 is descending, by bagged-powder
The sack of material 6 crushes, and its interior powder lot in bags 6 is got into episphere die cavity 56 by press-powder hole 55;Molding press 7 continues traveling downwardly
To arriving lower interior circular groove 53, powder lot in bags 6 and alpha+beta titanium alloys skeleton 4, powder 2 are squeezed into one, form complete Ceramic Balls
Base 9；Molding press 7 turns clockwise and continues after 90 ° to rotate, and is limited by the closed section 56 of lower interior circular groove 53, on molding press 7 drives
Hemisphere die cavity 56 rotates, and is rotated into walking to few 3 circles, and the unnecessary blank on Ceramic Balls base 9 surface is machined away by episphere die cavity 56；With
Rear molding press 7 is mentioned, and drives episphere die cavity 56 to leave Ceramic Balls base 9.
4) ball base transfer: lower semisphere mould 1 is transported to station four, by the transfer device 8 of negative-pressure adsorption-type by Ceramic Balls
High temperature sagger transferred to by base 9, sprinkles parting sand.
F. high temperature sintering: the high temperature sagger equipped with Ceramic Balls base (9) step (e) obtained sends into the tunnel that air-tightness is good
In kiln；In heating process, logical noble gas, high temperature sintering temperature 1350-1400 DEG C, firing period 28-is kept in tunnel cave
30h；High temperature sintering terminate after the type of cooling for be cooled to 780-800 DEG C with kiln, then heat to 870 DEG C, be incubated 1-2h, then with
Kiln is cooled to 550-650 DEG C, is incubated 2h, opens kiln air cooling subsequently.
G. clear powder polishing: parting sand and the burr of product adhesion in sintering process are removed；
H. finished product is dried: be dried product, obtains finished product.
Described above to the disclosed embodiments, only for making professional and technical personnel in the field be capable of or using this
Invention.Multiple amendment to these embodiments will be apparent from for those skilled in the art, herein institute
The General Principle of definition can realize without departing from the spirit or scope of the present invention in other embodiments.Therefore,
The present invention is not intended to be limited to the embodiments shown herein, and is to fit to special with principles disclosed herein and novelty
The widest scope that point is consistent.
Claims (7)
1. the Ceramic Balls of a built-in alpha+beta titanium alloys skeleton, it is characterised in that: the bone of the integrative-structure being made up of alpha+beta titanium alloys
Frame and its outer spheres of ceramic composition of parcel, manufacture by the way of overall pressing, high temperature sintering；Alpha+beta titanium alloys skeleton total
Volume is the 3-5% of Ceramic Balls volume, and length direction is smaller in size than the 70% of spheres of ceramic external diameter；Spheres of ceramic uses alumina base
Ceramic material is made.
The Ceramic Balls of built-in alpha+beta titanium alloys skeleton the most according to claim 1, it is characterised in that: described alpha+beta titanium alloys bone
Frame is dendroid or the herring-bone form structure of integral die-cast molding.
The Ceramic Balls of built-in alpha+beta titanium alloys skeleton the most according to claim 2, it is characterised in that: described alpha+beta titanium alloys has
Body is TC6 titanium alloy.
The Ceramic Balls of built-in alpha+beta titanium alloys skeleton the most according to claim 3, it is characterised in that: described spheres of ceramic
Formula is: aluminium oxide 92-95%, iron sesquioxide 0.5-2%, Kaolin 0.8-3%, carborundum 0.2-2%, titanium dioxide 1.5-
2%, titanium carbide 0.8-1%, molybdenum bisuphide 0.3-2%.
The preparation method of the Ceramic Balls of built-in alpha+beta titanium alloys skeleton the most according to claim 4, it is characterised in that: include
The operations such as dispensing, ball milling, mist projection granulating, feed bin are old, Profile procoess, high temperature sintering, clear powder polishes, finished product is dried, its feature
It is:
The most described Profile procoess operation includes following sub-operation:
1) first watering powder: lower semisphere mould (1) is transported to station one by stepping conveying belt (10), by the powder of ceramic prilling
(2) being poured into lower semisphere mould (1) by conveying pipeline (3), the moisture control of powder (2) is below 0.5%；
2) skeleton dropping place: lower semisphere mould (1) is transported to station two, then will by the device of placement alpha+beta titanium alloys skeleton (4)
The powder (2) that the dendroid of integral die-cast molding or the alpha+beta titanium alloys skeleton (4) of herring-bone form are placed in lower semisphere mould (1)
Centre of surface position；
3) spheroid pressing full circle: lower semisphere mould (1) is transported to station three；Powder lot in bags (6) is put into the upper of episphere mould (5)
Portion's entrance (51), then molding press (7) enters in the way of parallel with the upper entrance (54) in episphere mould (5), arrives
Turning clockwise 90 ° after circular groove (52) in upper, molding press (7) is fixed with episphere mould (5) in the vertical direction；Molding press subsequently
(7) drive episphere mould (5) descending, contact with lower semisphere mould (1) to episphere mould (5), molding press (7) half-twist counterclockwise,
Molding press (7) and episphere mould (5) in the vertical direction release fixing；Molding press (7) is descending, by the sack of powder lot in bags (6)
Crushing, its interior powder lot in bags (6) is got into episphere die cavity (56) by press-powder hole (55);Molding press (7) continue traveling downwardly to
Arriving lower interior circular groove (53), powder lot in bags (6) and alpha+beta titanium alloys skeleton (4), powder (2) are squeezed into one, are formed complete
Ceramic Balls base (9)；Molding press (7) turns clockwise and continues after 90 ° to rotate, by the limit of the closed section (56) of lower interior circular groove (53)
System, molding press (7) drives episphere die cavity (56) to rotate, and is rotated into walking to few 3 circles, and episphere die cavity (56) is by Ceramic Balls base
(9) the unnecessary blank on surface machines away；Molding press (7) is mentioned subsequently, drives episphere die cavity (56) to leave Ceramic Balls base (9)；
4) ball base transfer: lower semisphere mould (1) is transported to station four, by transfer device (8), Ceramic Balls base (9) is transferred to
High temperature sagger, sprinkles parting sand；
The most described high temperature sintering operation is particularly as follows: the high temperature sagger that will be equipped with the Ceramic Balls base (9) that Profile procoess operation obtains send
Enter in the tunnel cave that air-tightness is good；In heating process, logical noble gas, high temperature sintering temperature 1350-1400 is kept in tunnel cave
DEG C, firing period 28-30h；High temperature sintering terminate after the type of cooling for be cooled to 780-800 DEG C with kiln, then heat to 870
DEG C, it is incubated 1-2h, then is cooled to 550-650 DEG C with kiln, be incubated 2h, open kiln air cooling subsequently.
The preparation method of the Ceramic Balls of built-in alpha+beta titanium alloys skeleton the most according to claim 5, it is characterised in that: described
The transfer device (8) used in ball base transfer process is negative-pressure adsorption-type.
The preparation method of the Ceramic Balls of built-in alpha+beta titanium alloys skeleton the most according to claim 6, it is characterised in that: in work
The 48-52% that powder (2) is the total consumption of Ceramic Balls that position one is filled, the capacity of the powder lot in bags (6) of station three should be press-powder hole
(55) volume and the total consumption of Ceramic Balls 55-58%'s and.
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| CN107759206A (en) * | 2017-11-16 | 2018-03-06 | 深圳市大擎科技有限公司 | High-pressure resistant ceramic spherical shell, preparation method and deep-sea buoyant device |
| CN109574638A (en) * | 2018-12-29 | 2019-04-05 | 山东天汇研磨耐磨技术开发有限公司 | A kind of high-bond ceramics section and its manufacturing method applying metal-rubber |
| CN109808049A (en) * | 2019-04-01 | 2019-05-28 | 四川大学 | A kind of method that high-temperature gas aerosolization prepares spherical powder |
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