CN107081428B - A kind of radium-shine processing method of the netted constitutional detail of metal material - Google Patents
A kind of radium-shine processing method of the netted constitutional detail of metal material Download PDFInfo
- Publication number
- CN107081428B CN107081428B CN201710144854.0A CN201710144854A CN107081428B CN 107081428 B CN107081428 B CN 107081428B CN 201710144854 A CN201710144854 A CN 201710144854A CN 107081428 B CN107081428 B CN 107081428B
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- China
- Prior art keywords
- metal material
- netted
- radium
- constitutional detail
- shine
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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
- B22F3/115—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by spraying molten metal, i.e. spray sintering, spray casting
-
- 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
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/10—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material
- B22F1/108—Mixtures obtained by warm mixing
-
- 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
- B22F5/10—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of articles with cavities or holes, not otherwise provided for in the preceding subgroups
Abstract
The present invention relates to the radium-shine processing methods of the netted constitutional detail of metal material comprising following steps: 1), selecting metal material powder and binder；2), feeding is prepared using selected metal material powder and binder；3) the feeding injection moulding metal material green compact, are utilized；4) green compact of the netted constitutional detail of metal material, are formed using the radium-shine mesh for processing reticular structure of radium-shine light beam on the metal material green compact after injection moulding；5) degreasing sintered forming, is carried out to the green compact of the netted constitutional detail of the metal material, the netted constitutional detail of the metal material is made.It present invention employs radium-shine processing technology, solves the problems, such as that the breaking occurred in finishing impression processing, dimensional accuracy are small, and passes through the reticular structure in the processable superfine aperture out of radium-shine processing.
Description
Technical field
The invention belongs to forming technique fields, are related to a kind of processing method of netted constitutional detail of metal material, especially
It is related to a kind of radium-shine processing method of netted constitutional detail of metal material.
Background technique
The netted constitutional detail of metal material all has a wide range of applications in numerous areas.But due to reticular structure
Mesh aperture is smaller, requirement on machining accuracy is higher, in the prior art and does not have preferable processing method.
A kind of netted structure zero of metal material that metal injection moulding is combined with finishing impression processing is provided in the prior art
Part processing technology.It uses injection molding technology to process non-network part, then direct non-network part
Thermal sintering.Then, finishing impression is carried out to the non-network part after thermal sintering and processes reticular structure.
But the existing this metal material mesh processed using injection moulding with the method that finishing impression processing combines
Shape constitutional detail, when reticular structure mesh aperture be less than 0.4mm when, to finishing impression process used by cutter require compared with
Height, and it is also easy to breaking when processing the mesh in tiny aperture, or even also will affect the hole of the mesh of final reticular structure
Diameter dimensional accuracy.Therefore, it is not able to satisfy the processing of the netted constitutional detail of the lesser metal material in aperture of mesh.
In view of the drawbacks described above of the prior art, there is an urgent need to a kind of processing sides of novel netted constitutional detail of metal material
Method.
Summary of the invention
It is an object of the invention to overcome disadvantage existing in the prior art, a kind of netted constitutional detail of metal material is provided
Radium-shine processing method solve that the breaking occurred in finishing impression processing, dimensional accuracy is small asks which employs radium-shine processing technology
Topic, and pass through the reticular structure in the processable superfine aperture out of radium-shine processing.
To achieve the goals above, the invention provides the following technical scheme:
A kind of radium-shine processing method of the netted constitutional detail of metal material, which comprises the following steps:
1) metal material powder and binder, are selected；
2), feeding is prepared using selected metal material powder and binder；
3) the feeding injection moulding metal material green compact, are utilized；
4), on the metal material green compact after injection moulding using the radium-shine mesh for processing reticular structure of radium-shine light beam,
Form the green compact of the netted constitutional detail of metal material；
5) degreasing sintered forming, is carried out to the green compact of the netted constitutional detail of the metal material, the metal material is made
Reticular structure part.
Further, wherein in the step 1), selected metal material powder is 316L powder of stainless steel and its partial size
It is 10-20 microns.
Further, wherein in the step 1), selected binder is modeling based binder.
Still further, wherein, the modeling based binder is the mixture of POM, PE, EVA, SA and PW, wherein each composition
Mass percent are as follows: POM 75%-89%；PE 4%-10%；PW 3%-10%P；SA 2%-8%；EVA 1%-10%.
In addition, in the present invention, wherein the step 2 is specially to put the metal material powder and the binder
It is kneaded 2 hours at 190 DEG C in mixer and prepares the feeding.
Further, wherein when preparing feeding, the metal material powder accounts for the 60-80% of feeding total weight, described
Binder accounts for the 20-40% of feeding total weight.
Further, wherein in the step 3), injection temperature when injection moulding is 190 DEG C, and mould temperature is 120 DEG C,
Injection pressure is 80MPa, injection speed 60cm3/ s, dwell time 1s, dwell pressure 30Mpa.
Still further, wherein, in the step 5), the degreasing is specially to be catalyzed to take off under 120 DEG C of skimming temp
Rouge 6 hours.
Again further, wherein in the step 5), the specific embodiment of the sintering are as follows: with 4 DEG C/min's
After the temperature of sintering furnace is warming up to 600 DEG C and keeps the temperature 90min by heating rate, with the heating rate of 5.55 DEG C/min by sintering furnace
Temperature be warming up to 1100 DEG C and keep the temperature 90min after, then with the heating rate of 3.5 DEG C/min the temperature of sintering furnace is warming up to
1380 DEG C and 120min is kept the temperature, finally the temperature of sintering furnace is down to after 1000 DEG C and turns off sintering furnace power supply, allows the metal material
Expect that reticular structure part is cooled to ambient temperature and is drawn off certainly in sintering furnace.
In addition, the present invention also provides a kind of netted constitutional details of metal material, which is characterized in that it uses the above method to add
Work forms, and the aperture of the mesh of its reticular structure is less than 0.4mm.
Compared with existing processing method, the radium-shine processing method of the netted constitutional detail of metal material of the invention has such as
Lower advantageous effects:
1, which employs radium-shine processing technology, solve the problems, such as that the breaking occurred in finishing impression processing, dimensional accuracy are small；
2, by radium-shine processing, superfine aperture can be processed, aperture is less than 0.4mm, such as aperture is the netted of 0.3mm
Structure.
3, it is carried out degreasing sintered again after radium-shine processing, is shaped convenient for mesh in reticular structure.
4, it is by using suitable degreasing process and sintering process, it can be ensured that finished metal material network structure is being tied
Structure and performance etc. are met the requirements.
Detailed description of the invention
Fig. 1 is the flow chart of the radium-shine processing method of the netted constitutional detail of metal material of the invention.
Fig. 2 is the mesh-structured schematic diagram of the metal material that is processed using radium-shine processing method of the invention.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples, and the content of embodiment is not as to guarantor of the invention
Protect the limitation of range.
The present invention relates to a kind of radium-shine processing methods of the netted constitutional detail of metal material, pass through metal injection moulding skill
Art and radium-shine processing technology combine to manufacture the netted constitutional detail of metal material.
As shown in Figure 1, the radium-shine processing method of the netted constitutional detail of metal material of the invention the following steps are included:
Firstly, selected metal material powder and binder.
The netted constitutional detail of metal material is prepared by Metal Injection Molding, it is necessary to select suitable raw material
To prepare feeding.In the present invention, selected metal material powder is 316L powder of stainless steel and its partial size is 10-20 microns.
Selected binder is modeling based binder.Preferably, the modeling based binder is the mixture of POM, PE, EVA, SA and PW.And
And, wherein the mass percent of each composition are as follows: POM 75%-89%；PE 4%-10%；PW 3%-10%P；SA 2%-8%；EVA
1%-10%.Select this metal material powder and binder, it can be ensured that feeding has good mobility, stability and melting
Index, so that it is guaranteed that the performance of the netted constitutional detail of metal material.
Secondly, preparing feeding using selected metal material powder and binder.
In the present invention, feeding is specially that the metal material powder and the binder are placed in mixer 190
It is kneaded 2 hours at DEG C and prepares the feeding.Also, when preparing feeding, the metal material powder accounts for feeding total weight
60-80%, the binder account for the 20-40% of feeding total weight.It can guarantee using the feeding of this preparation method and this proportion
The netted constitutional detail of the metal material of preparation has good mechanical performance and is convenient for radium-shine processing.
Certainly, after preparing feeding, feeding performance can be detected.The feeding performance detection includes feeding
Mobility-detected and the detection of feeding melt index.In specific detection, feeding performance detection part can be prepared, feeding performance is passed through
Detection piece carries out the comprehensive performance detection of feeding.The contents of the section is not emphasis place of the invention, therefore is not described in detail here.
Again, by feeding performance detection, if detecting that the mobility of feeding, stability, melt index etc. all meet
It is required that it is possible to utilizing the feeding injection moulding metal material green compact.
In the present invention, it is preferred to which injection temperature is 190 DEG C, and mould temperature is 120 DEG C, and injection pressure is in injection moulding
80MPa, injection speed 60cm3/ s, dwell time 1s, dwell pressure 30Mpa.It, can by this ejection forming method
To prepare the metal material green compact met the requirements, it is made to be easy to carry out radium-shine processing.
Then, reticular structure is processed using radium-shine light beam is radium-shine on the metal material green compact after injection moulding, is formed
The green compact of the netted constitutional detail of metal material.
Since radium-shine light beam has high brightness, high directivity, high monochromaticity and high coherence's four characteristics, radium is just given
It penetrates processing and brings characteristic not available for some other processing methods.Simultaneously as it is contactless processing, to material without direct
Impact, therefore without mechanically deform；It is worn in radium-shine process without " cutter ", acts on material without " cutting force "；Radium-shine processing
In the process, radium-shine light beam energy density is high, and process velocity is fast, and is partial operation, or shadow no to non-radium-shine irradiated site
Sound is minimum.Therefore, in the present invention, by using radium-shine processing, it is small to solve the breaking occurred in finishing impression processing, dimensional accuracy
The problem of.Meanwhile by radium-shine processing, superfine aperture can be processed, aperture is less than 0.4mm, such as aperture is the net of 0.3mm
Shape structure.Moreover, because being to carry out radium-shine processing to metal material green compact, therefore, add convenient for the radium-shine of mesh in reticular structure
Work forming.
Finally, the green compact to the netted constitutional detail of the metal material carry out degreasing sintered forming, the metal material is made
Expect reticular structure part.
In the present invention, it is preferred to which the degreasing is specially catalysis degreasing 6 hours under 120 DEG C of skimming temp.Using
This degreasing method can get rid of used binder when injection moulding, it is ensured that the performance of part.
It is highly preferred that the specific embodiment of the sintering are as follows: with the heating rate of 4 DEG C/min by the temperature liter of sintering furnace
The temperature of sintering furnace is warming up to 1100 DEG C with the heating rate of 5.55 DEG C/min and kept the temperature by temperature to 600 DEG C and after keeping the temperature 90min
After 90min, then the temperature of sintering furnace is warming up to 1380 DEG C with the heating rate of 3.5 DEG C/min and keeps the temperature 120min, finally will
The temperature of sintering furnace turns off sintering furnace power supply after being down to 1000 DEG C, allow the netted constitutional detail of the metal material in sintering furnace from
It is cooled to ambient temperature and is drawn off.This sintering process can ensure do not have sand in the netted constitutional detail of the metal material
Eye, the problems such as being unevenly distributed.
With use in the prior art metal injection moulding compared with the method that combines of finishing impression processing, metal material of the invention
Expect that the radium-shine processing method of mesh-structured part can process metal material mesh of the aperture less than 0.4mm of the mesh of reticular structure
Shape constitutional detail, such as the aperture of mesh shown in Fig. 2 are the netted constitutional detail of metal material of 0.3mm.In Fig. 2, institute
The length for stating the mesh-structured part of metal material is 25mm, the aperture of width 20mm, mesh is 0.3mm, pitch of holes 0.5
mm.And the problem small which solve the breaking occurred in finishing impression processing, dimensional accuracy.
The above embodiment of the present invention be only to clearly illustrate example of the present invention, and not be to the present invention
Embodiment restriction.For those of ordinary skill in the art, it can also make on the basis of the above description
Other various forms of variations or variation.Here all embodiments can not be exhaustive.It is all to belong to skill of the invention
The obvious changes or variations that art scheme is extended out are still in the scope of protection of the present invention.
Claims (5)
1. a kind of radium-shine processing method of the netted constitutional detail of metal material, which comprises the following steps:
1) metal material powder and binder, are selected；Wherein, selected metal material powder is 316L powder of stainless steel and its grain
Diameter is 10-20 microns；
2), feeding is prepared using selected metal material powder and binder；Specifically: by the metal material powder and institute
It states binder and is placed in mixer to be kneaded 2 hours at 190 DEG C and prepare the feeding；When preparing feeding, the metal material
Feed powder end accounts for the 60-80% of feeding total weight, and the binder accounts for the 20-40% of feeding total weight；
3) the feeding injection moulding metal material green compact, are utilized；Injection temperature when injection moulding is 190 DEG C, and mould temperature is 120
DEG C, injection pressure 80MPa, injection speed 60cm3/ s, dwell time 1s, dwell pressure 30Mpa；
4) it, is formed on the metal material green compact after injection moulding using the radium-shine mesh for processing reticular structure of radium-shine light beam
The green compact of the netted constitutional detail of metal material；
5) degreasing sintered forming, is carried out to the green compact of the netted constitutional detail of the metal material, it is netted that the metal material is made
Constitutional detail, wherein the specific embodiment of the sintering are as follows: the temperature of sintering furnace is heated up with the heating rate of 4 DEG C/min
To 600 DEG C and after keeping the temperature 90min, the temperature of sintering furnace is warming up to 1100 DEG C with the heating rate of 5.55 DEG C/min and is kept the temperature
After 90min, then the temperature of sintering furnace is warming up to 1380 DEG C with the heating rate of 3.5 DEG C/min and keeps the temperature 120min, finally will
The temperature of sintering furnace turns off sintering furnace power supply after being down to 1000 DEG C, allow the netted constitutional detail of the metal material in sintering furnace from
It is cooled to ambient temperature and is drawn off.
2. the radium-shine processing method of the netted constitutional detail of metal material according to claim 1, which is characterized in that the step
It is rapid 1) in, selected binder be modeling based binder.
3. the radium-shine processing method of the netted constitutional detail of metal material according to claim 2, which is characterized in that the modeling
Based binder is the mixture of POM, PE, EVA, SA and PW, wherein the mass percent of each composition are as follows: POM 75%-89%；
PE 4%-10%；PW 3%-10%P；SA 2%-8%；EVA 1%-10%.
4. the radium-shine processing method of the netted constitutional detail of metal material according to any one of claim 1-3, feature
It is, in the step 5), the degreasing is specially catalysis degreasing 6 hours under 120 DEG C of skimming temp.
5. a kind of netted constitutional detail of metal material, which is characterized in that it uses method of any of claims 1-4
It is process, and the aperture of the mesh of its reticular structure is less than 0.4mm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710144854.0A CN107081428B (en) | 2017-03-13 | 2017-03-13 | A kind of radium-shine processing method of the netted constitutional detail of metal material |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710144854.0A CN107081428B (en) | 2017-03-13 | 2017-03-13 | A kind of radium-shine processing method of the netted constitutional detail of metal material |
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| CN107081428A CN107081428A (en) | 2017-08-22 |
| CN107081428B true CN107081428B (en) | 2019-02-19 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4710332A (en) * | 1982-04-15 | 1987-12-01 | Rockwell International Corporation | Process of injection molding a laser mirror substrate |
| CN1644278A (en) * | 2005-01-12 | 2005-07-27 | 北京科技大学 | Ti6Al4V alloy injection forming method |
| CN101238166A (en) * | 2005-07-01 | 2008-08-06 | 金文申有限公司 | Process for production of porous reticulated composite materials |
| CN101353561A (en) * | 2008-09-04 | 2009-01-28 | 中南大学 | Catalysis degreasing type adhesive for powder injection moulding and preparation of material feeding thereof |
| KR20110013683A (en) * | 2009-08-03 | 2011-02-10 | 임금숙 | Method for manufacturing of cutting tip for saw and structure thereof |
| CN102727948A (en) * | 2011-11-14 | 2012-10-17 | 上海市第一人民医院 | Biodegradable magnesium alloy bile duct stone-dissolving carving stent and preparation method thereof |
-
2017
- 2017-03-13 CN CN201710144854.0A patent/CN107081428B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4710332A (en) * | 1982-04-15 | 1987-12-01 | Rockwell International Corporation | Process of injection molding a laser mirror substrate |
| CN1644278A (en) * | 2005-01-12 | 2005-07-27 | 北京科技大学 | Ti6Al4V alloy injection forming method |
| CN101238166A (en) * | 2005-07-01 | 2008-08-06 | 金文申有限公司 | Process for production of porous reticulated composite materials |
| CN101353561A (en) * | 2008-09-04 | 2009-01-28 | 中南大学 | Catalysis degreasing type adhesive for powder injection moulding and preparation of material feeding thereof |
| KR20110013683A (en) * | 2009-08-03 | 2011-02-10 | 임금숙 | Method for manufacturing of cutting tip for saw and structure thereof |
| CN102727948A (en) * | 2011-11-14 | 2012-10-17 | 上海市第一人民医院 | Biodegradable magnesium alloy bile duct stone-dissolving carving stent and preparation method thereof |
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| CN107081428A (en) | 2017-08-22 |
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