CN108213439A - A kind of method using powder injection forming production tooth orthodontics self-locking bracket - Google Patents
A kind of method using powder injection forming production tooth orthodontics self-locking bracket Download PDFInfo
- Publication number
- CN108213439A CN108213439A CN201710385758.5A CN201710385758A CN108213439A CN 108213439 A CN108213439 A CN 108213439A CN 201710385758 A CN201710385758 A CN 201710385758A CN 108213439 A CN108213439 A CN 108213439A
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- Prior art keywords
- locking bracket
- orthodontics self
- tooth
- self
- powder
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/22—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces for producing castings from a slip
- B22F3/225—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces for producing castings from a slip by injection molding
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C7/00—Orthodontics, i.e. obtaining or maintaining the desired position of teeth, e.g. by straightening, evening, regulating, separating, or by correcting malocclusions
- A61C7/12—Brackets; Arch wires; Combinations thereof; Accessories therefor
- A61C7/14—Brackets; Fixing brackets to teeth
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Epidemiology (AREA)
- Dentistry (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
The present invention relates to type medical instrument for dental use, and in particular to a kind of method using powder injection forming production tooth orthodontics self-locking bracket.Its scheme includes the following steps：（1）It is mixed with high-molecular organic material using pre-alloyed powder, then uniformly mixed material is put into the mold of tooth orthodontics self-locking bracket shape；（2）Injection moulding obtains tooth orthodontics self-locking bracket blank；Wherein injection temperature is 170~210 DEG C, 60~120MPa of pressure, 30~130 DEG C of mould temperature；（3）Catalysis degreasing is carried out with orthodontics self-locking bracket blank to tooth and obtains degreasing part；Wherein skimming temp is 50~130 DEG C, and degreasing time is 0.5~5 hour；（4）Degreasing part is sintered, wherein sintering temperature is 1200~1400 DEG C；（5）Tooth orthodontics self-locking bracket product is obtained after being corrected to sintered part.The method of the present invention can prepare tooth orthodontics self-locking bracket, and simple for process, good product consistency is suitble to extensive quick production.
Description
Technical field
The present invention relates to type medical instrument for dental use, and in particular to a kind of to produce tooth correction self-locking bracket using powder injection forming
The method of slot.
Background technology
Locking bracket correcting technology is a kind of new technology occurred in recent years, and revolutionary change is brought to Fixed Orthodontics technology
Become, pincushion distortion must be more convenient.Its major advantage is the frictional resistance that can be substantially reduced between steel wire and bracket.Because it
A sect is added on bracket, directly correction steel wire can be locked in the groove of bracket, eliminates steel ligature or rubber
Enclose the binding to correction steel wire.At present, locking bracket is all using machine-building, mainly with wire cutting machine processing or die forging
Method produces, and still, since locking bracket hardness is higher, and its processing is in irregular shape, complicated, so plus
Work is difficult, so it is cumbersome to always exist manufacturing procedure, low production efficiency, can not on a large scale, low cost production the problem of, and show
There is the consistency of locking bracket that Mechanical Method produces poor, product quality can not be stablized always.
Invention content
The purpose of the present invention is to solve the disadvantages mentioned above of the prior art, provide a kind of using powder injection forming production
The method of tooth orthodontics self-locking bracket.
The scheme of the invention is a kind of method using powder injection forming production tooth orthodontics self-locking bracket, including such as
Lower step：
（1）It is mixed using pre-alloyed powder with high-molecular organic material, uniformly mixed material is then put into tooth correction certainly
In the mold for locking bracket shape；
（2）Injection moulding obtains tooth orthodontics self-locking bracket blank；Wherein injection temperature is 170~210 DEG C, pressure 60~
120MPa, 30~130 DEG C of mould temperature；
（3）Tooth with orthodontics self-locking bracket blank is catalyzed or solvent degreasing obtains degreasing part；Wherein skimming temp for 50~
130 DEG C, degreasing time is 0.5~5 hour；
（4）Degreasing part is sintered, wherein sintering temperature is 1200~1400 DEG C；
（5）Tooth orthodontics self-locking bracket product is obtained after being corrected to sintered part.
Another preferred embodiment is that the pre-alloyed powder is 17-4PH stainless steel powder.
Another preferred embodiment is step（1）The dosage of high-molecular organic material is the 5%~15% of pre-alloyed powder weight.
Another preferred embodiment is step（1）The dosage of high-molecular organic material is the 9% of pre-alloyed powder weight.
Another preferred embodiment is step（2）Injection temperature is 180~200 DEG C, 80~100MPa of pressure.
Another preferred embodiment is step（2）Injection temperature is 190 DEG C, pressure 90MPa, 120 DEG C of mould temperature.
Another preferred embodiment is step（3）Skimming temp is 120 DEG C, and degreasing time is 2~3 hours.
Another preferred embodiment is step（4）Sintering using gas shield sintering method, sintering vacuum degree 0.05MPa~
0.0001MPa, sintering protective atmosphere are inert gas.
Another preferred embodiment is step（4）Sintering temperature is 1250~1300 DEG C.
The tooth that the method for the present invention manufactures is good with locking bracket consistency, and close structure overcomes existing machinery and adds
The shortcomings that work production this irregular structure part consistency of tooth locking bracket is poor.Meanwhile using this method powder injection forming
The tooth of production also has the advantages that high intensity and high-precision with locking bracket.This manufacturing method step is simple, is greatly reduced
The production cost of tooth locking bracket.
Specific embodiment
Below in conjunction with specific embodiment, the present invention is further illustrated, and protection scope of the present invention is not limited in this
A little embodiments.
The method that embodiment 1 produces tooth orthodontics self-locking bracket using powder injection forming
（1）Pre-alloyed powder（17-4PH stainless steels) and high-molecular organic material（High-molecular organic material as binding agent,
Its dosage is the 12% of pre-alloyed powder weight；Ingredients Weight percentage composition composition is in high-molecular organic material：Polyformaldehyde 75%,
Polypropylene 22%, stearic acid 3%）Then uniformly mixed material is put into the tooth orthodontics self-locking bracket mould of target shape by mixing
In tool；
（2）Injection moulding obtains tooth orthodontics self-locking bracket blank；Wherein injection temperature is 190 DEG C, pressure 110MPa, mould temperature 90
℃；
（3）Catalysis degreasing is carried out with orthodontics self-locking bracket blank to tooth and obtains degreasing part；Wherein skimming temp is 120 DEG C, degreasing
Time is 2.5 hours；
（4）Degreasing part is sintered, wherein sintering temperature is 1250~1300 DEG C；Sintering uses gas shield sintering method,
Vacuum degree 0.005MPa is sintered, sintering protective atmosphere is argon gas.
（5）To sintered part shaping, surface polishing treatment, tooth orthodontics self-locking bracket product is obtained.
The method that embodiment 2 produces tooth orthodontics self-locking bracket using powder injection forming
（1）Using pre-alloyed powder（Vitallium）With organic polymer binding agent（The dosage of organic polymer binding agent is
The 8% of pre-alloyed powder weight；Ingredients Weight percentage composition composition is in organic polymer binding agent：Polyformaldehyde 80%, polypropylene
12%th, paraffin 5%, stearic acid 3%）Then uniformly mixed material is put into the mold of tooth orthodontics self-locking bracket shape by mixing
In；
（2）Injection moulding obtains tooth orthodontics self-locking bracket blank；Wherein injection temperature is 180 DEG C, pressure 100MPa, mould temperature
120℃；
（3）Catalysis degreasing is carried out with orthodontics self-locking bracket blank to tooth and obtains degreasing part；Wherein skimming temp is 120 DEG C, degreasing
Time is 3 hours；
（4）Degreasing part is sintered, wherein sintering temperature is 1250~1300 DEG C；Sintering uses gas shield sintering method,
Vacuum degree 0.01MPa is sintered, sintering protective atmosphere is argon gas.
（5）To obtaining tooth orthodontics self-locking bracket product after sintered part shaping, surface polishing treatment.
The method that embodiment 3 produces tooth orthodontics self-locking bracket using powder injection forming
（1）Using pre-alloyed powder（316L stainless steels) and organic binder bond（The dosage of organic binder bond is prealloy powder
The 14% of last weight；Ingredients Weight percentage composition composition is in organic binder bond：Polyethylene wax 40%, polyester modification wax 20%, oxidation
Polyethylene wax 17%, polypropylene 15%, glycerine 8%））Carry out feeding preparation；
（2）Injection moulding obtains tooth orthodontics self-locking bracket blank in the mold of tooth orthodontics self-locking bracket shape；Wherein note
It is 170 DEG C, pressure 80MPa to penetrate temperature, 40 DEG C of mould temperature；
（3）Solvent degreasing is carried out with orthodontics self-locking bracket blank to tooth and obtains degreasing part；Wherein skimming temp is 50 DEG C, during degreasing
Between be 8 hours；
（4）Degreasing part is sintered, wherein sintering temperature is 1250~1300 DEG C；Sintering uses gas shield sintering method,
Vacuum degree 0.008MPa is sintered, sintering protective atmosphere is argon gas.
（5）Tooth orthodontics self-locking bracket product is obtained after carrying out shaping, surface polishing treatment to sintered part.
The method that embodiment 4 produces tooth orthodontics self-locking bracket using powder injection forming
（1）Using ceramic prilling powder（Aoxidize aluminium material）With organic binder bond（The dosage of organic binder bond is ceramic prilling powder
The 10% of last weight；Organic binder bond into be grouped as with implement 2）Carry out feeding preparation；
（2）Then injection moulding obtains tooth orthodontics self-locking bracket embryo in the mold of target tooth orthodontics self-locking bracket shape
Part；Wherein injection temperature is 120 DEG C, pressure 60MPa, 30 DEG C of mould temperature；
（3）Solvent degreasing is carried out to injection blank and obtains degreasing part；Wherein skimming temp is 50 DEG C, and degreasing time is 3 hours；
（4）Degreasing part is sintered, wherein sintering temperature is 1250~1300 DEG C；Sintering uses gas shield sintering method,
Vacuum degree 0.003MPa is sintered, sintering protective atmosphere is argon gas.
（5）Tooth orthodontics self-locking bracket product is obtained after carrying out shaping, surface polishing treatment to sintered part.
The method that embodiment 5 produces tooth orthodontics self-locking bracket using powder injection forming
（1）Using pre-alloyed powder（Vitallium）With organic polymer binding agent（The dosage of organic polymer binding agent is
The 10% of pre-alloyed powder weight；Ingredients Weight percentage composition composition is in organic polymer binding agent：Polyethylene wax 47%, polyester
Modified waxes 13%, oxidized polyethylene wax 15%, polypropylene 19%, glycerine 6%）Then uniformly mixed material is put into tooth by mixing
In mold with orthodontics self-locking bracket shape；
（2）Injection moulding obtains tooth orthodontics self-locking bracket blank；Wherein injection temperature is 170 DEG C, pressure 105MPa, mould temperature 40
℃；
（3）Solvent degreasing is carried out with orthodontics self-locking bracket blank to tooth and obtains degreasing part；Wherein skimming temp is 50 DEG C, during degreasing
Between be 3 hours；
（4）Degreasing part is sintered, wherein sintering temperature is 1250~1300 DEG C；Sintering uses gas shield sintering method,
Vacuum degree 0.01MPa is sintered, sintering protective atmosphere is argon gas.
（5）To obtaining tooth orthodontics self-locking bracket product after sintered part shaping, surface polishing treatment.
Each alloy powder can be preferably bonded together by the organic binder bond of above-described embodiment, degreasing and sintering when this
A little bonding agents can all be deviate from high temperature.
The method of the present invention is suitble to the manufacture for producing tooth orthodontics self-locking bracket in enormous quantities, the consistent high, favorable reproducibility of product.
And the method for the present invention can use the material of more preferable performance, such as 316L, 17-4PH, vitallium or ceramic material,
And existing mechanical manufacturing method can not process these materials, thus the product quality produced is bad, in addition, of the invention
Method can produce with more complicated structure, more multi-functional locking bracket is realized, including double flute, the secondary slot of band, oblique cutting slot, circle
The structures such as angle overcome the shortcomings that prior art cannot produce labyrinth, and it is short to be surface-treated the time, improve production effect
Rate.
Above-described embodiment is the preferable embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, other any Spirit Essences without departing from the present invention with made under principle change, modification, replacement, combine, simplification,
Equivalent substitute mode is should be, is included within protection scope of the present invention.
Claims (9)
1. a kind of method using powder injection forming production tooth orthodontics self-locking bracket, it is characterized in that, include the following steps：
（1）It is mixed using pre-alloyed powder with high-molecular organic material, uniformly mixed material is then put into tooth correction certainly
In the mold for locking bracket shape；
（2）Injection moulding obtains tooth orthodontics self-locking bracket blank；Wherein injection temperature is 170~210 DEG C, pressure 60~
120MPa, 30~130 DEG C of mould temperature；
（3）Degreasing is carried out with orthodontics self-locking bracket blank to tooth and obtains degreasing part；Wherein skimming temp is 50~130 DEG C, degreasing
Time is 0.5~5 hour；
（4）Degreasing part is sintered, wherein sintering temperature is 1200~1400 DEG C；
（5）Tooth orthodontics self-locking bracket product is obtained after being corrected to sintered part.
2. according to claim 1 using the method for powder injection forming production tooth orthodontics self-locking bracket, it is characterized in that, institute
Pre-alloyed powder is stated as 17-4PH stainless steel powder.
3. according to claim 1 using the method for powder injection forming production tooth orthodontics self-locking bracket, it is characterized in that, step
Suddenly（1）The dosage of high-molecular organic material is the 5%~15% of pre-alloyed powder weight.
4. according to claim 3 using the method for powder injection forming production tooth orthodontics self-locking bracket, it is characterized in that, step
Suddenly（1）The dosage of high-molecular organic material is the 9% of pre-alloyed powder weight.
5. according to claim 1 using the method for powder injection forming production tooth orthodontics self-locking bracket, it is characterized in that, step
Suddenly（2）Injection temperature is 180~200 DEG C, 80~100MPa of pressure.
6. according to claim 5 using the method for powder injection forming production tooth orthodontics self-locking bracket, it is characterized in that, step
Suddenly（2）Injection temperature is 190 DEG C, pressure 90MPa, 120 DEG C of mould temperature.
7. according to claim 1 using the method for powder injection forming production tooth orthodontics self-locking bracket, it is characterized in that, step
Suddenly（3）Skimming temp is 120 DEG C, and degreasing time is 2~3 hours.
8. according to claim 1 using the method for powder injection forming production tooth orthodontics self-locking bracket, it is characterized in that, step
Suddenly（4）Sintering using gas shield sintering method, be sintered vacuum degree 0.1MPa~0.0001MPa, sintering protective atmosphere is lazy
Property gas.
9. according to claim 1 using the method for powder injection forming production tooth orthodontics self-locking bracket, it is characterized in that, step
Suddenly（4）Sintering temperature is 1250~1300 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710385758.5A CN108213439A (en) | 2017-05-26 | 2017-05-26 | A kind of method using powder injection forming production tooth orthodontics self-locking bracket |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710385758.5A CN108213439A (en) | 2017-05-26 | 2017-05-26 | A kind of method using powder injection forming production tooth orthodontics self-locking bracket |
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| CN108213439A true CN108213439A (en) | 2018-06-29 |
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| CN201710385758.5A Pending CN108213439A (en) | 2017-05-26 | 2017-05-26 | A kind of method using powder injection forming production tooth orthodontics self-locking bracket |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114438370A (en) * | 2021-12-31 | 2022-05-06 | 上海精科智能科技股份有限公司 | Lightweight damping flip self-locking orthodontic device and near-net-shape preparation method thereof |
| CN114515830A (en) * | 2022-02-28 | 2022-05-20 | 杭州富阳华文医疗器械有限公司 | Wax-based binder for self-ligating bracket and preparation method thereof |
| CN116102341A (en) * | 2023-01-16 | 2023-05-12 | 领胜城科技（江苏）有限公司 | Alumina feed and preparation method and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114438370A (en) * | 2021-12-31 | 2022-05-06 | 上海精科智能科技股份有限公司 | Lightweight damping flip self-locking orthodontic device and near-net-shape preparation method thereof |
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| CN116102341A (en) * | 2023-01-16 | 2023-05-12 | 领胜城科技（江苏）有限公司 | Alumina feed and preparation method and application thereof |
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