CN110396613A - A kind of preparation method of the titanium-zirconium alloy applied to tooth root planting body - Google Patents
A kind of preparation method of the titanium-zirconium alloy applied to tooth root planting body Download PDFInfo
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- CN110396613A CN110396613A CN201910743708.9A CN201910743708A CN110396613A CN 110396613 A CN110396613 A CN 110396613A CN 201910743708 A CN201910743708 A CN 201910743708A CN 110396613 A CN110396613 A CN 110396613A
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- 229910001093 Zr alloy Inorganic materials 0.000 title claims abstract description 35
- PMTRSEDNJGMXLN-UHFFFAOYSA-N titanium zirconium Chemical compound [Ti].[Zr] PMTRSEDNJGMXLN-UHFFFAOYSA-N 0.000 title claims abstract description 35
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 238000002844 melting Methods 0.000 claims abstract description 103
- 230000008018 melting Effects 0.000 claims abstract description 103
- 238000005339 levitation Methods 0.000 claims abstract description 71
- 238000010438 heat treatment Methods 0.000 claims abstract description 38
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims abstract description 32
- 229910052786 argon Inorganic materials 0.000 claims abstract description 16
- 239000007789 gas Substances 0.000 claims abstract description 16
- 238000001816 cooling Methods 0.000 claims abstract description 14
- 239000002994 raw material Substances 0.000 claims abstract description 8
- 238000005266 casting Methods 0.000 claims abstract description 5
- 229910045601 alloy Inorganic materials 0.000 claims description 39
- 239000000956 alloy Substances 0.000 claims description 39
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 29
- 229910052726 zirconium Inorganic materials 0.000 claims description 29
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 27
- 239000010936 titanium Substances 0.000 claims description 27
- 229910052719 titanium Inorganic materials 0.000 claims description 27
- 239000000463 material Substances 0.000 claims description 26
- 238000003723 Smelting Methods 0.000 claims description 15
- 238000004140 cleaning Methods 0.000 claims description 10
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 6
- 230000003247 decreasing effect Effects 0.000 claims description 6
- 239000000155 melt Substances 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims description 6
- 238000007667 floating Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000013078 crystal Substances 0.000 abstract 1
- 238000007670 refining Methods 0.000 abstract 1
- 238000005086 pumping Methods 0.000 description 12
- 239000000725 suspension Substances 0.000 description 9
- 239000012535 impurity Substances 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 4
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 239000004615 ingredient Substances 0.000 description 3
- 244000137852 Petrea volubilis Species 0.000 description 2
- 238000009776 industrial production Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000004663 powder metallurgy Methods 0.000 description 2
- 206010054949 Metaplasia Diseases 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 239000003462 bioceramic Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000015689 metaplastic ossification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/02—Inorganic materials
- A61L27/04—Metals or alloys
- A61L27/06—Titanium or titanium alloys
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/50—Materials characterised by their function or physical properties, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C14/00—Alloys based on titanium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C16/00—Alloys based on zirconium
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2430/00—Materials or treatment for tissue regeneration
- A61L2430/12—Materials or treatment for tissue regeneration for dental implants or prostheses
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Metallurgy (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
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- Life Sciences & Earth Sciences (AREA)
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- Inorganic Chemistry (AREA)
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Abstract
The invention discloses a kind of preparation processes of titanium-zirconium alloy applied to tooth root planting body to press the raw material of batch melting high-purity including the use of the vacuum levitation melting furnace under argon gas protection under different heating power；By vacuumizing, refining, water cooling, overturning ingot casting melt back after, obtain final titanium-zirconium alloy ingot casting.Titanium-zirconium alloy uniformity prepared by the present invention is good, and degree of purity is high, crystal grain refinement, and the advantages that excellent in mechanical performance, is the preferable selection applied to tooth root planting body, and present invention process process is simple, is suitble to industrialized production.
Description
Technical field
The invention belongs to the preparation fields of dentistry material, and in particular to a kind of titanium zirconium conjunction applied to tooth root planting body
The preparation method of gold.
Background technique
With the continuous improvement of dental care technology, people increasingly propose material requirements needed for dental care planting system
Height, traditional treatment material can no longer meet existing requirement, and for tooth root planting body, most common planting material
Metal and bioceramic, and because Titanium and its alloy since their biocompatible property is good, clinical application
Simple or compound planting body mostly using both materials as substrate.But the initial pure titanium strength of materials is insufficient, with screw, base
There is mismatch in platform material, and titanium alloy mainly using containing be harmful to the human body element al and V as the alloy of representative, and
And it wears no resistance.Titanium-zirconium alloy has not only reached the promotion of the strength of materials as tooth root planting body, enhances its wearability,
Even more have compared with low elastic modulus and better biocompatibility.Titanium-zirconium alloy is due to its low-density, high intensity, excellent power
Performance and corrosion resistance and good biocompatible property are learned, is widely used in biomedical metallic material.
Currently, the normal open for preparing for being directed to titanium-zirconium alloy both at home and abroad often passes through high melt or two kinds of powder metallurgy main sides
Then product is made using cold and hot working in method.Two kinds of materials can be mixed usually before melting starts and are placed on by high melt
Melting is carried out in crucible, due to the limitation of coil and bushing position, the difference of two kinds of material melting points, it is easy to cause to melt out and
Alloy uniformity it is poor, material property also will sharp fall.Hole, and powder are usually had inside the product of powder metallurgy
The intensity of powder metallurgical products generally can be low compared with other modes, and pressing mold is at high cost.Therefore one kind is needed to be more suitable for industrial production, and manufacture
Titanium-zirconium alloy out has the process of excellent performance.
Summary of the invention
The purpose of the present invention is to provide a kind of preparation method of titanium-zirconium alloy applied to tooth root planting body, the titaniums of manufacture
Zircaloy has the high strength of materials and better biocompatibility, is suitable for tooth root planting body, and is suitble to industrial metaplasia
It produces.
Technical solution of the present invention the following steps are included:
Prepare before step 1, melting: the oxide scale layer of removal titanium block and zirconium block cleans titanium block and zirconium using supersonic wave cleaning machine
Block；
Step 2, melting prepare: wash heat furnace, and use alcohol wipe crucible, titanium block is uniformly placed in crucible, closing fire door；
Step 3, vacuum levitation melting stove evacuation: vacuum degree is slightly first evacuated to 10Pa, finally to vacuum levitation melting furnace
Carefully vacuum degree is evacuated to 8x10-3Pa or less；
Step 4, vacuum levitation melting furnace fill protective gas: being filled with high-purity argon gas to 300-900Pa in vacuum levitation melting furnace；
Step 5, in batches melting raw material: being added to 85-90KW for heating power first, melts to zirconium block, is set by above setting material mouth
Enter titanium block, and stablizes 3-4 minutes；Secondly heating power is improved to 100-105W, is stablized 3-4 minutes；Then power is improved extremely
115-120KW stablizes 3-4 minutes；Heating power is improved to 130-135KW, is stablized 3-4 minutes；Then heating power is improved extremely
145-150KW stablizes 3-4 minutes；It finally improves heating power and is maintained the temperature at after sufficiently melting titanium-zirconium alloy to 165KW
1700-1850 DEG C, continuous heating 3-5 minutes；Using 15-20KW as ladder, power is gradually decreased, and the moment is observed, and prevents
Alloy crack；
Step 6, alloy are cooling: obtained alloy cast ingot after cooling to 50 DEG C or less with the furnace；
Step 7, overturning alloy cast ingot melt back: vacuum levitation melting furnace door is opened, will be relay after 180 ° of ingot overturning
Enter in suspension smelting furnace；It repeats step 3 and arrives step 6, retrieve alloy cast ingot；
Step 8, melt back alloy cast ingot: overturning alloy cast ingot repeats step 1 to step 7 melting 6 times or more, obtains final
Titanium-zirconium alloy ingot casting.
Compared with prior art, the present invention its remarkable advantage is:
(1) the titanium-zirconium alloy even tissue being prepared through the invention, impurity content are low.
(2) through the invention the titanium-zirconium alloy strength of materials arrived is high, has excellent mechanical property.
(3) biocompatibility of material is good, and the present invention can be used for industrial production.
Detailed description of the invention
Fig. 1 is the preparation method flow chart for the titanium-zirconium alloy that the present invention is applied to tooth root planting body.
Fig. 2 is the quasistatic compression true stress―strain curve figure of titanium-zirconium alloy prepared by the embodiment of the present invention 1.
Fig. 3 is the quasistatic compression true stress―strain curve figure of titanium-zirconium alloy prepared by the embodiment of the present invention 2.
Specific embodiment
Present invention is further described in detail with reference to the accompanying drawing.
In conjunction with Fig. 1, a kind of preparation method of the titanium-zirconium alloy applied to tooth root planting body, preparation step is as follows:
Step 1, material prepare: the oxide scale layer of removal titanium block and zirconium block cleans titanium block and zirconium block using supersonic wave cleaning machine；
Wherein titanium block, zirconium block purity be above 99.5% (wt%), the titanium block, zirconium block mass percent range are as follows: titanium block
85%-50%(wt%), zirconium block 15%-50%(wt%).
Step 2, melting prepare: cleaning vacuum levitation melting furnace, and with alcohol wipe crucible, zirconium block is uniformly placed in crucible
In, close the fire door of vacuum levitation melting furnace；
Step 3, vacuum levitation melting stove evacuation: vacuum degree is slightly evacuated to 10Pa, most to vacuum levitation melting furnace first
It is carefully evacuated to vacuum degree afterwards to 8x10-3Pa or less；
Step 4, vacuum levitation melting furnace fill protective gas: being filled with high-purity argon gas to 300-900Pa in vacuum levitation melting furnace；
Step 5, in batches melting raw material: being added to 85-90KW for heating power first, melts to zirconium block, is set by above setting material mouth
Enter titanium block, and stablizes 3-4 minutes；Secondly heating power is improved to 100-105KW, is stablized 3-4 minutes；Then power is improved extremely
115-120KW stablizes 3-4 minutes；Heating power is improved to 130-135KW, is stablized 3-4 minutes；Then heating power is improved extremely
145-150KW stablizes 3-4 minutes；It finally improves heating power and is maintained the temperature at after sufficiently melting titanium-zirconium alloy to 165KW
1700-1850 DEG C, continuous heating 3-5 minutes；Using 15-20KW as ladder, power is gradually decreased；
Step 6, alloy are cooling: obtained alloy cast ingot after cooling to 50 DEG C or less with the furnace；
Step 7, overturning alloy cast ingot melting: opening vacuum levitation melting furnace door, outstanding by being reentered into after 180 ° of ingot overturning
In floating smelting furnace；Step 3 is repeated to step 6, retrieves alloy cast ingot；
Step 8, melt back alloy cast ingot: overturning alloy cast ingot repeats step 1 to step 7 melting 6 times or more, obtains final
Titanium-zirconium alloy ingot casting.
Embodiment 1:
In conjunction with Fig. 1, the preparation method of the titanium-zirconium alloy of the present invention applied to tooth root planting body, steps are as follows:
Prepare before step 1, melting: by purity be 99.5% titanium block and zirconium block by the former material that gross mass is that 7kg mass ratio is 17:3
Material carries out ingredient, and oxide layer thereon is removed it using file or sand paper, is cleaned simultaneously with supersonic wave cleaning machine
It makes it dry.
In step 2, cleaning vacuum levitation melting furnace furnace with the impurity in crucible, and with alcohol washes vacuum levitation melting furnace
Impurity in crucible.Zirconium block is uniformly placed in crucible, fire door is closed.
Step 3, vacuum levitation melting stove evacuation: first slightly being vacuumized, and is opened vacuum levitation melting furnace machinery and is pumped
Argon gas valve is opened in order to which the air for tracheae that argon tanks are connected with vacuum levitation melting furnace is discharged in road, molecular pump water route switch,
Pressure reducing valve is opened to 0.5Mpa, is filled 7 seconds or so.Vacuum levitation melting furnace mechanical pump is opened, vacuum levitation melting furnace waits for mechanical pump
Operation opened roughing valve after 30 seconds, and vacuum levitation melting furnace compound vacuum gauge is opened after about 1 minute；When vacuum degree reaches 1.0 ×
101It when pa, slightly exhausts into, starts pumping high vacuum, be not related to thick pumping at this time.
Followed by pumping high vacuum, vacuum levitation melting furnace foreline valve is opened, it is pre- to vacuum levitation melting furnace molecular pump
It vacuumizes；When vacuum degree is less than 1.0 × 101When, start vacuum levitation melting furnace molecule pump controller and vacuum levitation melting furnace
Molecular pump；When vacuum suspension smelting furnace molecular pump revolving speed reaches 24000 turns, when current values smaller (3-4), vacuum suspension is closed
Smelting furnace roughing valve opens the main pumping valve of vacuum levitation melting furnace, until reaching vacuum degree is 8 × 10-3Pa。
Step 4, vacuum levitation melting furnace fill protective gas: opening vacuum levitation melting furnace pressure reducing valve, open argon filling control
Valve is filled with high-purity argon gas to 400pa.
Step 5, melting raw material: being added to 85-90KW for heating power first, melts to zirconium block, is set by above setting material mouth
Enter titanium block, and stablizes 3-4 minutes；Secondly heating power is improved to 100-105W, is stablized 3-4 minutes；Then power is improved extremely
115-120KW stablizes 3-4 minutes；Heating power is improved to 130-135KW, is stablized 3-4 minutes；Then heating power is improved extremely
145-150KW stablizes 3-4 minutes；It finally improves heating power and is maintained the temperature at after sufficiently melting titanium-zirconium alloy to 165KW
1700-1850 DEG C, continuous heating 3-5 minutes；Using 15-20KW as ladder, power is gradually decreased.
Step 6, alloy are cooling: obtained alloy cast ingot after cooling to 50 DEG C or less with the furnace；
Step 7, overturning alloy cast ingot melt back: vacuum levitation melting furnace door is opened, will be relay after 180 ° of ingot overturning
Enter in suspension smelting furnace；It repeats step 3 and arrives step 6, retrieve alloy cast ingot.
Step 8, melt back alloy cast ingot: it is repeated melting 6 times or more, and obtains final titanium-zirconium alloy.
Titanium block and zirconium block are shown in mass ratio by the quasistatic compression true stress―strain curve figure of the titanium-zirconium alloy of Fig. 2
Have intensity high for the alloy that 17:3 is prepared, there is excellent mechanical property.
Embodiment 2:
Prepare before step 1, melting: the pure zirconium that reaches 99.5% using purity, pure titanium as raw material, by gross mass be 7kg, pure titanium with
The mass ratio of pure zirconium is that 6:4 carries out ingredient, is cleaned with alcohol, and make it dry.
Step 2, cleaning vacuum levitation melting furnace smelting furnace and vacuum levitation melting furnace crucible, pure zirconium is uniformly placed in very
In empty suspension smelting furnace crucible, vacuum levitation melting furnace door is closed.
Step 3, vacuum levitation melting stove evacuation: first slightly being vacuumized, and is opened vacuum levitation melting furnace mechanical pump water route, is divided
Son pumps way switch, in order to which the air for tracheae that argon tanks are connected with vacuum levitation melting furnace is discharged, opens argon gas valve, will depressurize
Valve is opened to 0.5Mpa, is filled 7 seconds or so.Vacuum levitation melting furnace mechanical pump is opened, vacuum levitation melting furnace mechanical pump runs smoothly
Vacuum levitation melting furnace roughing valve is opened afterwards, and vacuum levitation melting furnace compound vacuum gauge is opened after about 1 minute；When vacuum degree reaches
1.0×101It when Pa, slightly exhausts into, starts pumping high vacuum, be not related to thick pumping at this time.
Then pumping high vacuum is carried out, vacuum levitation melting furnace foreline valve is opened, vacuum levitation melting furnace molecular pump is taken out in advance
Vacuum；When vacuum degree is less than 1.0 × 101When Pa, start vacuum levitation melting furnace molecule pump controller and vacuum levitation melting furnace
Molecular pump；When vacuum suspension smelting furnace molecular pump revolving speed reaches 24000 turns, when current values smaller (3-4), vacuum suspension is closed
Smelting furnace roughing valve opens the main pumping valve of vacuum levitation melting furnace, until reaching vacuum degree is 8 × 10-3Pa。
Step 4, vacuum levitation melting furnace fill protective gas: opening pressure reducing valve, open argon filling control valve and be filled with high-purity argon gas
To 400pa.
Step 5, melting raw material: being added to 85-90KW for heating power first, melts to zirconium block, is set by above setting material mouth
Enter titanium block, and stablizes 3-4 minutes；Secondly heating power is improved to 100-105W, is stablized 3-4 minutes；Then power is improved extremely
115-120KW stablizes 3-4 minutes；Heating power is improved to 130-135KW, is stablized 3-4 minutes；Then heating power is improved extremely
145-150KW stablizes 3-4 minutes；It finally improves heating power and is maintained the temperature at after sufficiently melting titanium-zirconium alloy to 165KW
3100-3250 DEG C, continuous heating 3-5 minutes；Using 15-20KW as ladder, power is gradually decreased, when dropping to 90-100kw
Power supply is directly closed, heating is stopped.
Step 6, alloy are cooling: opening the water pump to cool down to crucible and smelting furnace, the moment is observed in furnace, becomes to alloy
Secretly, the water pump for closing cooling crucible, waits about 7 minutes or so, closes the water pump of cooling smelting furnace.
Step 7, overturning alloy cast ingot melt back: opening vacuum levitation melting furnace door, by weight after 180 ° of ingot overturning
Newly it is put into suspension smelting furnace；It repeats step 3 and arrives step 6, retrieve alloy cast ingot.
Step 8, melt back alloy cast ingot: it is repeated melting 6 times or more, and obtains final titanium-zirconium alloy.
Embodiment 3:
Prepare before step 1, melting: by purity be 99.5% pure titanium and pure zirconium by the former material that gross mass is that 7kg mass ratio is 1:1
Material carries out ingredient, and oxide layer thereon is removed it using file or sand paper, is cleaned simultaneously with supersonic wave cleaning machine
It makes it dry.
Step 2, melting prepare: the impurity in cleaning vacuum levitation melting furnace furnace and in vacuum levitation melting furnace crucible, and
With the impurity in alcohol washes vacuum levitation melting furnace crucible.Pure zirconium is uniformly placed in vacuum levitation melting furnace crucible, is closed
Closed furnace door.
Step 3, vacuum levitation melting stove evacuation: first slightly being vacuumized, and is opened vacuum levitation melting furnace machinery and is pumped
Argon gas valve is opened in order to which the air for tracheae that argon tanks are connected with vacuum levitation melting furnace is discharged in road, molecular pump water route switch,
Pressure reducing valve is opened to 0.5Mpa, is filled 7 seconds or so.Open vacuum levitation melting furnace mechanical pump, vacuum levitation melting furnace mechanical pump fortune
Vacuum levitation melting furnace roughing valve is opened after row is steady, vacuum levitation melting furnace compound vacuum gauge is opened after about 1 minute；Work as vacuum
Degree reaches 1.0 × 101It when Pa, slightly exhausts into, starts pumping high vacuum, be not related to thick pumping at this time.
Then pumping high vacuum is carried out, vacuum levitation melting furnace foreline valve is opened, to molecular pump forvacuum；When vacuum degree is small
In 1.0 × 101When Pa, start vacuum levitation melting furnace molecule pump controller and vacuum levitation melting furnace molecular pump；Surely hovering
Floating smelting furnace molecular pump revolving speed reaches 24000 turns, when current values smaller (3-4), closes vacuum levitation melting furnace roughing valve, opens
The main pumping valve of vacuum levitation melting furnace is opened, until reaching vacuum degree is 8 × 10-3Pa。
Step 4, vacuum levitation melting furnace fill protective gas: opening pressure reducing valve, open argon filling control valve and be filled with high-purity argon gas
To 400pa.
Step 5, melting raw material: being added to 85-90KW for heating power first, melts to zirconium block, is set by above setting material mouth
Enter titanium block, and stablizes 3-4 minutes；Secondly heating power is improved to 100-105W, is stablized 3-4 minutes；Then power is improved extremely
115-120KW stablizes 3-4 minutes；Heating power is improved to 130-135KW, is stablized 3-4 minutes；Then heating power is improved extremely
145-150KW stablizes 3-4 minutes；It finally improves heating power and is maintained the temperature at after sufficiently melting titanium-zirconium alloy to 165KW
1700-1850 DEG C, continuous heating 3-5 minutes；Using 15-20KW as ladder, power is gradually decreased.
Step 6, alloy are cooling: obtained alloy cast ingot after cooling to 50 DEG C or less with the furnace；
Step 7, overturning alloy cast ingot melt back: vacuum levitation melting furnace door is opened, will be relay after 180 ° of ingot overturning
Enter in suspension smelting furnace；It repeats step 3 and arrives step 6, retrieve alloy cast ingot.
Step 8, melt back alloy cast ingot: it is repeated melting 6 times or more, and obtains final titanium-zirconium alloy.
Titanium block and zirconium block are shown in mass ratio by the quasistatic compression true stress―strain curve figure of the titanium-zirconium alloy of Fig. 3
The alloy strength prepared for 17:3 is high, has excellent mechanical property.
In conclusion method provided by the present invention is simple to operate, the period is short, suitable for mass production, it is obtained at
Product uniformity is preferable, excellent mechanical.
Claims (3)
1. a kind of preparation method of the titanium-zirconium alloy applied to tooth root planting body, which is characterized in that preparation step is as follows:
Step 1, material prepare: the oxide scale layer of removal titanium block and zirconium block cleans titanium block and zirconium block using supersonic wave cleaning machine；
Step 2, melting prepare: cleaning vacuum levitation melting furnace, and with alcohol wipe crucible, zirconium block is uniformly placed in crucible,
Close the fire door of vacuum levitation melting furnace；
Step 3, vacuum levitation melting stove evacuation: vacuum degree is slightly evacuated to 10Pa, most to vacuum levitation melting furnace first
It is carefully evacuated to vacuum degree afterwards to 8x10-3Pa or less；
Step 4, vacuum levitation melting furnace fill protective gas: being filled with high-purity argon gas to 300-900Pa in vacuum levitation melting furnace；
Step 5, in batches melting raw material: being added to 85-90KW for heating power first, melts to zirconium block, is set by above setting material mouth
Enter titanium block, and stablizes 3-4 minutes；Secondly heating power is improved to 100-105KW, is stablized 3-4 minutes；Then power is improved extremely
115-120KW stablizes 3-4 minutes；Heating power is improved to 130-135KW, is stablized 3-4 minutes；Then heating power is improved extremely
145-150KW stablizes 3-4 minutes；It finally improves heating power and is maintained the temperature at after sufficiently melting titanium-zirconium alloy to 165KW
1700-1850 DEG C, continuous heating 3-5 minutes；Using 15-20KW as ladder, power is gradually decreased；
Step 6, alloy are cooling: obtained alloy cast ingot after cooling to 50 DEG C or less with the furnace；
Step 7, overturning alloy cast ingot melting: opening vacuum levitation melting furnace door, outstanding by being reentered into after 180 ° of ingot overturning
In floating smelting furnace；Step 3 is repeated to step 6, retrieves alloy cast ingot；
Step 8, melt back alloy cast ingot: overturning alloy cast ingot repeats step 1 to step 7 melting 6 times or more, obtains final
Titanium-zirconium alloy ingot casting.
2. the preparation method of the titanium-zirconium alloy according to claim 1 applied to tooth root planting body, it is characterised in that: step
The purity of titanium block, zirconium block described in 1 is above 99.5% (wt%).
3. the preparation method of the titanium-zirconium alloy according to claim 1 applied to tooth root planting body, it is characterised in that: step
1, the titanium block, zirconium block mass percent range are as follows: titanium block 85%-50%(wt%), zirconium block 15%-50%(wt%).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910743708.9A CN110396613A (en) | 2019-08-13 | 2019-08-13 | A kind of preparation method of the titanium-zirconium alloy applied to tooth root planting body |
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| CN201910743708.9A CN110396613A (en) | 2019-08-13 | 2019-08-13 | A kind of preparation method of the titanium-zirconium alloy applied to tooth root planting body |
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| CN114101693A (en) * | 2020-08-31 | 2022-03-01 | 厦门稀土材料研究所 | Low-oxygen europium nickel powder for 3D printing and preparation method thereof |
| CN114277283A (en) * | 2021-12-28 | 2022-04-05 | 南京理工大学 | Omega-rich medical zirconium-based alloy and preparation method thereof |
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Application publication date: 20191101 |