CN105478742B - Feeding formula and its preparation technology in a kind of metal injection moulding technique - Google Patents
Feeding formula and its preparation technology in a kind of metal injection moulding technique Download PDFInfo
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- CN105478742B CN105478742B CN201510846903.6A CN201510846903A CN105478742B CN 105478742 B CN105478742 B CN 105478742B CN 201510846903 A CN201510846903 A CN 201510846903A CN 105478742 B CN105478742 B CN 105478742B
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- Prior art keywords
- feeding
- high density
- injection moulding
- metal injection
- powder
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- 238000000034 method Methods 0.000 title claims abstract description 28
- 239000002184 metal Substances 0.000 title claims abstract description 16
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 16
- 238000001746 injection moulding Methods 0.000 title claims abstract description 10
- 238000002360 preparation method Methods 0.000 title claims abstract description 6
- 238000005516 engineering process Methods 0.000 title abstract description 10
- 239000000843 powder Substances 0.000 claims abstract description 22
- 229920001903 high density polyethylene Polymers 0.000 claims abstract description 17
- 239000004700 high-density polyethylene Substances 0.000 claims abstract description 17
- 239000004743 Polypropylene Substances 0.000 claims abstract description 11
- -1 poly propylene Polymers 0.000 claims abstract description 11
- 229920001155 polypropylene Polymers 0.000 claims abstract description 11
- 239000002994 raw material Substances 0.000 claims abstract description 9
- 235000021355 Stearic acid Nutrition 0.000 claims abstract description 8
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims abstract description 8
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229920006324 polyoxymethylene Polymers 0.000 claims abstract description 8
- 239000008117 stearic acid Substances 0.000 claims abstract description 8
- TZXKOCQBRNJULO-UHFFFAOYSA-N Ferriprox Chemical compound CC1=C(O)C(=O)C=CN1C TZXKOCQBRNJULO-UHFFFAOYSA-N 0.000 claims abstract description 6
- DHKHKXVYLBGOIT-UHFFFAOYSA-N 1,1-Diethoxyethane Chemical compound CCOC(C)OCC DHKHKXVYLBGOIT-UHFFFAOYSA-N 0.000 claims abstract description 3
- 239000011354 acetal resin Substances 0.000 claims abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 9
- 238000001035 drying Methods 0.000 claims description 6
- 239000000428 dust Substances 0.000 claims description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims description 5
- 239000010935 stainless steel Substances 0.000 claims description 5
- 239000010963 304 stainless steel Substances 0.000 claims description 3
- 229910000619 316 stainless steel Inorganic materials 0.000 claims description 3
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 3
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 claims description 3
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 2
- 239000010931 gold Substances 0.000 claims description 2
- 229910052737 gold Inorganic materials 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 14
- 238000003490 calendering Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000035611 feeding Effects 0.000 description 29
- 238000011161 development Methods 0.000 description 4
- RSWGJHLUYNHPMX-UHFFFAOYSA-N 1,4a-dimethyl-7-propan-2-yl-2,3,4,4b,5,6,10,10a-octahydrophenanthrene-1-carboxylic acid Chemical compound C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 206010021703 Indifference Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000002885 octadecanoids Chemical class 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Classifications
-
- B22F1/0003—
-
- 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
Abstract
The invention discloses feeding formula in a kind of metal injection moulding technique and preparation method thereof, include the powder raw material of following percentage by weight meter：Metal powder 80%~90%；Acetal resin POM 5%~10%；High density polyethylene 1%~3%；High density poly propylene HDPP 1%~3%；ABS 0.5%~1.5%；Stearic acid 0.01%~0.1%.Beneficial effects of the present invention are：1st, feeding calendering process is innovated：Specific calendering process and control program are devised, ensure that the lot stability of feeding and higher production efficiency.2nd, this Project-developing category country encourages intermediate item, meets national industrial policies and investment orientation, meets national energy-saving emission reduction requirement and advanced manufacturing technology innovation.Meanwhile upgrade process technology, drive the liveness of periphery related Manufacturing.
Description
Technical field
The present invention relates to a kind of feeding formula, feeding formula and its preparation in specially a kind of metal injection moulding technique
Method, belong to metal powder injection technical field.
Background technology
Feeding formula technique is the core technology of M I M industry most criticals, and the country is almost without specialty on a large scale at present
Feeding manufacturing enterprise, the domestic feeding brand also do not approved in the industry, domestic feeding market is substantially by BASF Aktiengesellschaft
Monopolization.The country have part professional attempt several trades mark of small-scale production feeding, but its performance indications, lot stability,
Generally applicable property differs greatly with German brand, and therefore, research China has the feeding formula technique and product of independent intellectual property right
Have important practical significance and strategic importance.
Nearly 5 years, metal injection molded (MIM) product should in each difference with annual 15-40% speed in Asian market
With field high speed development.In China, it is contemplated that the annual requirement to MIM products in 2015 will be more than 4~600,000,000 dollars.Feeding is gold
Belong to the source process in injection moulding MIM, while be also the most important thing in MIM, long-term one feeding for carrying out MIM techniques is to rely on
In the finished product feeding of Introduced From Abroad, directly apply, the drawbacks of very big on supply cycle be present so in the cost of product and all.Phase
For developing rapidly for current MIM techniques, this pattern has been unfavorable for the production and application of product, to MIM techniques instantly
Development brings very big puzzlement.
I takes charge of the research and development success of the project, is advantageous to consolidate the achievement of Industrial Economic Development in recent years；Favourable industrial sector knot
The adjustment and optimization of structure, so as to be effectively promoted the fast development of economy.Monopolization of the foreign brand name to market is interrupted simultaneously, and
And the project meets national industrial policies and investment orientation.Economic benefit, the social benefit of project are all preferable.The Project-developing
After implementation, enterprise product structure can be optimized, improve the product quality of enterprise, reduce enterprise's production cost and difficulty of processing, upgrading
Local processing and manufacturing technology, the fast culture innovative technique talent, be advantageous to improve enterprise competitiveness and economic benefit.
The content of the invention
The invention aims to provide the feeding formula in a kind of metal injection moulding technique, to solve prior art
Above mentioned problem.
The purpose of the present invention is to be achieved through the following technical solutions.
A kind of feeding formula in metal injection moulding technique, include the powder raw material of following percentage by weight meter：
Metal powder 80%~90%；
Acetal resin POM 5%~10%；
High density polyethylene 1%~3%；
High density poly propylene HDPP 1%~3%；
ABS 0.5%~1.5%；
Stearic acid 0.01%~0.1%.
Described metal powder is selected from carbonyl iron dust, carbonyl reduction iron powder, 316 stainless steel powders, 304 stainless steel powders, 17-4 not
One or more of mixing in rust comminuted steel shot and powdered alloy steel.
One kind in S2320 and Du Pont DE500 of the described POM selected from BASF.
Described high density polyethylene (HDPE) is selected from Lanzhou Petrochemical HDPE5000S.
Described high density poly propylene is selected from Guangdong petrochemical industry CJS-700GD.
Described ABS is to be produced selected from Taiwan Qi Mei groups, trade mark ABS 757；
Described stearic acid is octadecanoid acid.
The preparation technology of above-mentioned feeding formula, its step are as follows：
1) each powder is weighed according to proportioning, weighed respectively, it is individually placed；
2) load weighted each raw material is well mixed；
3) mixed raw material is kneaded in advance with micro- mixed machine, normal temperature 0.5 hour；
4) feeding of step 3) is placed in seal in banbury and be kneaded, kept for 170 DEG C, be kneaded 1 hour；
5) using drying machine to feeding dehumidifying drying process；
6) pelletize：Using granulator by the feeding after banburying, grain shape is fabricated to；
7) pack：Using high pressure seal machine, it is vacuum-packed.
Beneficial effects of the present invention are：
1st, feeding calendering process is innovated：Specific calendering process and control program are devised, ensure that the batch of feeding is steady
Qualitative and higher production efficiency.
2nd, this Project-developing category country encourages intermediate item, meets national industrial policies and investment orientation, meets national energy-saving
Emission reduction requirement and advanced manufacturing technology innovation.Meanwhile upgrade process technology, drive the liveness of periphery related Manufacturing.
Embodiment
The technical characterstic of the present invention is expanded on further with reference to specific embodiment.
In the embodiment of the present invention, described metal powder is selected from carbonyl iron dust, carbonyl reduction iron powder, 316 stainless steel powders, 304
One or more of mixing in stainless steel powder, 17-4 stainless steel powders and powdered alloy steel.Described POM is selected from the S2320 of BASF
Lanzhou Petrochemical HDPE5000S is selected from the high density polyethylene (HDPE) described in Du Pont DE500..Described high density poly propylene is selected from wide
Eastern petrochemical industry CJS-700GD.Described ABS is to be produced selected from Taiwan Qi Mei groups, trade mark ABS 757；Described stearic acid is ten
Eight alkanoic acids.
Embodiment 1：
Carbonyl iron dust 87.9；S23205g；High density polyethylene (HDPE) 3g；High density poly propylene 3g；ABS 7571g；Stearic acid
0.1g。
Above-mentioned raw materials are well mixed；Mixed raw material is kneaded in advance with micro- mixed machine, normal temperature 0.5 hour；Then
It is placed in seal in banbury and is kneaded, is kept for 170 DEG C, be kneaded 1 hour；Again with drying machine to feeding dehumidifying drying process；With granulation
Feeding after banburying is fabricated to grain shape, obtains product by machine.
Embodiment 2：
Carbonyl iron dust 86.9g；S232010g；High density polyethylene (HDPE) 1g high density poly propylene HDPP 1g；ABS 7571g；Firmly
Resin acid 0.1g.Method is identical with embodiment, obtains product.
Embodiment 3：
Carbonyl iron dust 86.9g；S23208g；High density polyethylene (HDPE) 2g；High density poly propylene HDPP 2g；ABS 7571g；Firmly
Resin acid 0.1g.Method is identical with embodiment, obtains product.
Embodiment 4：
304 stainless steel powders 82.99；S232010g；High density polyethylene (HDPE) 3g；High density poly propylene 3g；ABS 7571g；Firmly
Resin acid 0.01g.Method is identical with embodiment, obtains product.
Embodiment 5：
17-4 stainless steel powders 82.4g；S232010g；High density polyethylene (HDPE) 3g；High density poly propylene HDPP 3g；ABS
7571.5g；Stearic acid 0.1g.Method is identical with embodiment, obtains product.
Embodiment 6：
17-4 stainless steel powders 87.84g；S23209.13g；5000S 1.03g；High density poly propylene 1.03g；ABS
0.91g；Stearic acid 0.06g.
Embodiment 1-6 all complete to need the time less than 2 hours by work, and more conventional traditional handicraft, which is kneaded feeding, needs 5
Hour, production capacity and efficiency are all significantly improved, and in terms of improving production efficiency, promoting productivity effect, improve significantly.
(being calculated during this test according to the amount of 20Kg feedings)
After tested, melt flow rate (MFR) is 2000g/10min or so to the feeding of gained, is easy to injection technique setting and quick
Densification shaping；Feed back reuses number up to more than 22 times/batch, and alloy is into the outward appearance of parison, size, weight and virgin material
Indifference, reduce because the qualified feeding scrapped into parison can not be injected thermal degradation；The removing speed of thermoplastic compounds reaches
3mm/h, greatly improve production efficiency；The vacuum-sintering time drops to 8h/ stoves by original 16h/ stoves, improves capacity utilization and drop
Low energy consumption.
For performance indications angle, at present, feeding does not have national standard, and BASF Aktiengesellschaft's feeding index is：
Reuse number：6 times
Flow rate：300~1300g/10min
Degreasing rate：1mm/h
Sintering time：14~18h
From data relatively from, technical solution of the present invention test data will be due to BASF AG's feeding.
Claims (3)
- A kind of 1. feeding formula in metal injection moulding technique, it is characterised in that：Include the powdery of following percentage by weight meter Raw material：Metal powder 80%~90%；Acetal resin POM 5%~10%；High density polyethylene 1%~3%；High density poly propylene HDPP 1%~3%；ABS 0.5%~1.5%；Stearic acid 0.01%~0.1%.
- 2. the feeding formula in a kind of metal injection moulding technique according to claim 1, it is characterised in that：Described gold Category powder is selected from carbonyl iron dust, carbonyl reduction iron powder, 316 stainless steel powders, 304 stainless steel powders, 17-4 stainless steel powders and powdered alloy steel In one or more of mixing.
- 3. the preparation method of the feeding formula in a kind of metal injection moulding technique described in claim 1, it is characterised in that：It is walked It is rapid as follows：1) each powder is weighed according to proportioning, weighed respectively, it is individually placed；2) load weighted each raw material is well mixed；3) mixed raw material is kneaded in advance with micro- mixed machine, normal temperature 0.5 hour；4) feeding of step 3) is placed in seal in banbury and be kneaded, kept for 170 DEG C, be kneaded 1 hour；5) using drying machine to feeding dehumidifying drying process；6) pelletize：Using granulator by the feeding after banburying, grain shape is fabricated to；7) pack：Using high pressure seal machine, it is vacuum-packed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510846903.6A CN105478742B (en) | 2015-11-27 | 2015-11-27 | Feeding formula and its preparation technology in a kind of metal injection moulding technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510846903.6A CN105478742B (en) | 2015-11-27 | 2015-11-27 | Feeding formula and its preparation technology in a kind of metal injection moulding technique |
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| Publication Number | Publication Date |
|---|---|
| CN105478742A CN105478742A (en) | 2016-04-13 |
| CN105478742B true CN105478742B (en) | 2017-12-15 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106282624B (en) * | 2016-08-10 | 2018-03-27 | 陈长春 | High-specific-gravity tungsten-based alloy and preparation method thereof |
| CN107377975A (en) * | 2017-06-22 | 2017-11-24 | 东莞华晶粉末冶金有限公司 | Alloy powder injection moulding feeding and preparation method thereof |
| CN109304461B (en) * | 2017-07-27 | 2020-06-05 | 东莞华晶粉末冶金有限公司 | High-hardness stainless steel feed and preparation method thereof, and high-hardness stainless steel blank and preparation method thereof |
| CN108339974A (en) * | 2018-02-06 | 2018-07-31 | 东莞华晶粉末冶金有限公司 | One kind 304 powder of stainless steel injection moulding feeding and preparation method thereof |
| CN109604584A (en) * | 2018-12-17 | 2019-04-12 | 中山市奥博精密科技有限公司 | Stainless steel mixed material feed and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101353561B (en) * | 2008-09-04 | 2012-03-07 | 中南大学 | Catalysis degreasing type adhesive for powder injection moulding and preparation of material feeding thereof |
| US9028584B2 (en) * | 2012-10-11 | 2015-05-12 | Composite Materials Technology, Inc. | System and method for fabrication of 3-D parts |
| CN103317139B (en) * | 2013-05-24 | 2016-04-27 | 江苏精研科技股份有限公司 | Shaping fan of a metal dust shot and preparation method thereof |
| CN104668565B (en) * | 2015-01-04 | 2016-09-07 | 东莞劲胜精密组件股份有限公司 | Feedstock of Powder Injection Molding preparation method and powder injection-molded production method |
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