CN107598157B - Automobile parts bond mixed powder and preparation method thereof with segregation-free iron copper carbon - Google Patents
Automobile parts bond mixed powder and preparation method thereof with segregation-free iron copper carbon Download PDFInfo
- Publication number
- CN107598157B CN107598157B CN201710854247.3A CN201710854247A CN107598157B CN 107598157 B CN107598157 B CN 107598157B CN 201710854247 A CN201710854247 A CN 201710854247A CN 107598157 B CN107598157 B CN 107598157B
- Authority
- CN
- China
- Prior art keywords
- powder
- mass fraction
- mixed powder
- ingredient
- segregation
- Prior art date
- 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.)
- Active
Links
Landscapes
- Powder Metallurgy (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention discloses a kind of automobile parts segregation-free iron copper carbon to bond mixed powder and preparation method thereof, its feature includes: that chemical component is C < 0.02wt.%, Si < 0.05wt.%, Mn < 0.30wt.%, P < 0.02wt.%, S < 0.02wt.%, surplus Fe, oxygen content is no more than 0.20wt.%；The mass fraction of -200 mesh atomized copper powders is 1.8-2.2%, and for the mass fraction of aquadag in 0.7-0.9%, micro- wax powder is 0.7-0.9%, and adhesive special number is 0-2.0%；It is mixed 20 minutes in batch mixer, adhesive special is sprayed into ingredient by the proportional spacing 0-0.20wt.% 30s；It is dried simultaneously；It is finished product mixed powder that powder takes out after drying completely.Weight loss is few after fugitive dust, has very high mobility.
Description
Technical field
The present invention relates to PM technique, especially a kind of automobile parts with segregation-free iron copper carbon bond mixed powder and
Its production method.
Background technique
With the development of powder metallurgy industry technology, the competition of pulverulent product is more and more fierce, and auto-parts producer exists
While excavating itself potentiality, make great efforts to reduce cost and improve competitiveness, also to powder property, more stringent requirements are proposed.
Even mixed-powder can form " pseudo-alloy " by elements such as addition Cu, Ni, Cr, Mn, Mo, C, to significantly improve each of powder
Item performance.But mixed-powder is easy to produce fugitive dust, segregation in transport and use process, causes final products change in size big
Etc. performances decline.Simultaneously as the raising of pressing speed and production efficiency, also proposed higher want to the flow velocity of powder
It asks, common mixed-powder has been unable to meet requirement, therefore the important link of powder being mixed into powder metallurgy process.
Fugitive dust is not generated in use, the powder of segregation is to influence high-precision, high performance powder metallurgy spare and accessory parts product and height
The key element of efficiency production.The method by adding binder is set about studying all to reduce mixing by well-known manufacturer both at home and abroad thus
Fugitive dust, the segregation phenomena of powder.
Although and the method for existing addition binder can better meet production, fugitive dust and segregation to control fine powder
It is ineffective, directly affect the compressibility and dimensional uniformity of powder.
Summary of the invention
The purpose of the present invention is to solve the above problems, provide a kind of automobile parts segregation-free iron copper carbon bonding mixing
Powder and preparation method thereof, when in use there is no concern that powder transport and use process in occur fugitive dust, segregation to compacting
The influence of properties of product improves the compressibility of powder and the consistency of product size.
Above-mentioned technical problem of the invention is mainly to be addressed by following technical proposals: a kind of automobile parts nothing
It is segregated iron copper carbon bonding mixed powder and preparation method thereof, it is characterised in that including the following contents:
(1) original washing powder selected is the straight iron powder of water atomization preparation, and chemical component is 0.02 wt.% of C <, Si < 0.05
0.30 wt.% of wt.%, Mn <, P < 0.02 wt.%, S < 0.02 wt.%, surplus Fe, wherein oxygen content is no more than 0.20
wt.%；
(2) other alloying components are selected are as follows: the mass fraction of -200 mesh atomized copper powders is 1.8-2.2 %, aquadag
Mass fraction is in 0.7-0.9%, and the mass fraction of micro- wax powder AncrawaxC is 0.7-0.9%, and the mass fraction of adhesive special is
0 < m≤2.0%；
(3) ingredient is made in above-mentioned mixed powder in proportion, is mixed in batch mixer 20 minutes (12 revs/min), it will be dedicated
Binder is sprayed into ingredient by the proportional spacing 0~0.20wt.% 30s；
(4) while spraying adhesive special, the ingredient in batch mixer is dried；
(5) take out after powder is dried completely is finished product mixed powder.
Automobile parts above-mentioned segregation-free iron copper carbon bonds mixed powder production method, and the adhesive special presses quality
Each composition of score ratio is: thermoplastic styrene butadiene rubber 0.3%, ethyl acetate 3%, alcohol 96.7%.
Automobile parts above-mentioned bond mixed powder production method with segregation-free iron copper carbon, and the powder falls Cu after fugitive dust
Weight loss between 30.9-15.3 %, between 22.8-5.9%, the total weight loss of powder exists the weight loss of C element
Between 7.74-2.74%.
Automobile parts above-mentioned bond mixed powder production method with segregation-free iron copper carbon, and the finished product mixed powder pine, which is compared, is
2.98-3.14g/cm3, flow velocity is 30.8-32.5 s/50g.
The technical program by add adhesive special technique can be improved sintering after product density, keep its transverse breakage strong
Degree variation range is small, consistency is good, and the size changing amount of product is small, consistency is good.By Experimental Comparison it is found that using special
In mixed powder with binder process, pearlite is more uniform, and ferrite particles are small, and deviation is small.And the technique is not used
Mixed powder in, since ingredient dispersion is uneven, graphite diffusion distance is remote, and causing its internal is mainly pearlite, locally there is block
The ferrite of shape.
The beneficial effects of the present invention are:
1. weight loss is few after fugitive dust, matching used by other comprehensive performances can control weight loss 2.74
Wt.% is hereinafter, be the 35% of conventional mixed-powder weight loss.
2. have very high mobility, experiment measure 50g powder standard flow rate be 30.8s.
3. the compressibility of powder can be improved on a small quantity, the variation of stabilizing material sintered dimensions and transverse compression intensity.
4. having the characteristics that the time is short, high-efficient, quality is stable, industrialized production can be directly used for, create economy and society
It can benefit.
Detailed description of the invention
Table 1 is the variation of powder weight and ingredient after falling fugitive dust.
Table 2 is influence of the content of binder to rate of powder and Song Bi.
Table 3 is influence of the blending processes of powders to molding, density, size and intensity.
Fig. 1 is that mixed powder does not add the sintered metallographic microscope of adhesive special.
Fig. 2 is the metallographic microscope that mixed powder is added to 2.0 wt.% specialist additives.
Specific embodiment
Below by embodiment, the technical solutions of the present invention will be further described.
A kind of automobile parts of the present embodiment bond mixed powder and preparation method thereof with segregation-free iron copper carbon, including following interior
Hold:
1. the original washing powder selected is the straight iron powder of water atomization preparation, chemical component is 0.02 wt.% of C <, Si < 0.05
0.30 wt.% of wt.%, Mn <, P < 0.02 wt.%, S < 0.02 wt.%, surplus Fe, wherein oxygen content is no more than 0.20
wt.%。
2. selecting other alloying components are as follows: the mass fraction of -200 mesh atomized copper powders is 1.8-2.2 %, the matter of aquadag
Score is measured in 0.7-0.9%, the mass fraction of micro- wax powder AncrawaxC is 0.7-0.9%, and the mass fraction of adhesive special is 0
< m≤2.0%.
3. ingredient is made in above-mentioned mixed powder in proportion, mixed 20 minutes in batch mixer with 12 revs/min of speed, it will be special
It is sprayed into ingredient with binder by the proportional spacing 0~0.20wt.% 30s.
4. being dried while spraying adhesive special to the ingredient in batch mixer.
5. it is finished product mixed powder that powder takes out after drying completely.
Wherein, adhesive special is than each composition by mass fraction: thermoplastic styrene butadiene rubber 0.3%, ethyl acetate 3%, wine
Essence 96.7%.
Powder falls the weight loss of Cu after fugitive dust between 30.9-15.3 %, and the weight loss of C element is in 22.8-
Between 5.9%, the total weight loss of powder is between 7.74-2.74%, as shown in table 1.Finished product mixed powder pine is compared for 2.98-
3.14g/cm3, flow velocity is 30.8-32.5 s/50g, as shown in table 2.
By table 3 it is found that compared being not added with adhesive special and 2.0 wt.% binder techniques of addition to formed product
The influence of density, change in size and intensity.Illustrate that product is close after can slightly improving sintering by addition adhesive special technique
Degree, makes that its cross-breaking strength variation range is small, consistency is good, and the size changing amount of product is small, consistency is good.
Table 1, powder fall Cu, C weight loss table of comparisons before and after fugitive dust
Table 2, finished product mixed powder pine ratio, flow velocity list
Table 3, adhesive special addition front and back catalog data
Further, it can be seen that by comparison diagram 1 and Fig. 2 in the mixed powder using adhesive special process, pearly-lustre
Body is more uniform, and ferrite particles are small, and deviation is small.And do not use in the mixed powder of the technique, since ingredient dispersion is uneven, stone
Black diffusion length is remote, and causing it internal is mainly pearlite, locally there is block-like ferrite.
Embodiment one:
(1) straight iron powder selected is the straight iron powder of water atomization preparation, and chemical component is 0.02 wt.% of C <, Si <
0.30 wt.% of 0.05 wt.%, Mn <, 0.02 wt.% of P <, 0.02 wt.% of S <, surplus Fe, wherein oxygen content is no more than
0.20 w.%。
(2) other alloying components are selected are as follows: the mass fraction of -200 mesh atomized copper powders is 1.8-2.2 %, aquadag
Mass fraction is in 0.7-0.9%, and the quality point of micro- wax powder Ancrawax C is in 0.7-0.9%.
(3) ingredient is made in above-mentioned mixed powder in proportion, mixed in batch mixer 20 minutes (12 revs/min) afterwards take out be
For finished product mixed powder.
Weight loss is 7.74 %, 2.98 g/cm of Song Biwei after falling fugitive dust3, powder, which stops, can not measure flow velocity.
Embodiment two:
(1) straight iron powder selected is the straight iron powder of water atomization preparation, and chemical component is 0.02 wt.% of C <, Si <
0.05 wt.%, 0.30 wt.% of Mn <, 0.02 wt.% of P <, 0.02 wt.% of S <, surplus Fe, wherein oxygen content is no more than
0.20 wt.%。
(2) other alloying components are selected are as follows: the mass fraction of -200 mesh atomized copper powders is 1.8-2.2 %, aquadag
Mass fraction is in 0.7-0.9 %, and the quality point of micro- wax powder Ancrawax C is in 0.7-0.9 %.
(3) ingredient is made in above-mentioned mixed powder in proportion, is mixed in batch mixer 20 minutes (12 revs/min), it will be dedicated
Binder is sprayed into ingredient by 0.8 proportional spacing wt.% 30s.
(4) while spraying adhesive special, the ingredient in batch mixer is dried.Powder takes out after drying completely
As finished product mixed powder.
Weight loss is 5.68 %, 3.14 g/cm of Song Biwei after falling fugitive dust3, flow velocity 32.5s/50g.
Embodiment three
(1) straight iron powder selected is the straight iron powder of water atomization preparation, and chemical component is 0.02 wt.% of C <, Si <
0.05 wt.%, 0.30 wt.% of Mn <, 0.02 wt.% of P <, 0.02 wt.% of S <, surplus Fe, wherein oxygen content is no more than
0.2 wt.%。
(2) other alloying components are selected are as follows: the mass fraction of -200 mesh atomized copper powders is 1.8-2.2 %, aquadag
Mass fraction is in 0.7-0.9 %, and the quality point of micro- wax powder Ancrawax C is in 0.7-0.9 %.
(3) ingredient is made in above-mentioned mixed powder in proportion, is mixed in batch mixer 20 minutes (12 revs/min), it will be dedicated
Binder is sprayed into ingredient by 1.2 proportional spacing wt.% 30s.
(4) while spraying adhesive special, the ingredient in batch mixer is dried.Powder takes out after drying completely
As finished product mixed powder.
Weight loss is 4.89 %, 3.1 g/cm of Song Biwei after falling fugitive dust3, flow velocity is 3.15 s/50g.
Example IV:
(1) straight iron powder selected is the straight iron powder of water atomization preparation, and chemical component is 0.02 wt.% of C <, Si <
0.05 wt.%, Mn < 0.30 wt.%, P < 0.02 wt.% of 0.02 wt.%, S <, surplus Fe, wherein oxygen content is no more than
0.20 wt.%。
(2) other alloying components are selected are as follows: the mass fraction of -200 mesh atomized copper powders is 1.8-2.2%, the matter of aquadag
Score is measured in 0.7-0.9%, the quality point of micro- wax powder Ancrawax C is in 0.7-0.9 %.
(3) ingredient is made in above-mentioned mixed powder in proportion, is mixed in batch mixer 20 minutes (12 revs/min), it will be dedicated
Binder is sprayed into ingredient by 1.6 proportional spacing wt.% 30s.
(4) while spraying adhesive special, the ingredient in batch mixer is dried.Powder takes out after drying completely
As finished product mixed powder.
Weight loss is 2.74 %, 3.09 g/cm of Song Biwei after falling fugitive dust3, flow velocity is 30.8 s/50g.
Embodiment five:
(1) straight iron powder selected is the straight iron powder of water atomization preparation, and chemical component is 0.02 wt.% of C <, Si <
0.05 wt.%, 0.30 wt.% of Mn <, 0.02 wt.% of P <, 0.02 wt.% of S <, surplus Fe, wherein oxygen content is no more than
0.20 wt.%。
(2) other alloying components are selected are as follows: the mass fraction of -200 mesh atomized copper powders is 1.8-2.2 %, aquadag
Mass fraction is in 0.7-0.9%, and the quality point of micro- wax powder Ancrawax C is in 0.7-0.9 %.
(3) ingredient is made in above-mentioned mixed powder in proportion, is mixed in batch mixer 20 minutes (12 revs/min), it will be dedicated
Binder is sprayed into ingredient by 2.0 proportional spacing wt.% 30s.
(4) while spraying adhesive special, the ingredient in batch mixer is dried.Powder takes out after drying completely
As finished product mixed powder.
Weight loss is 2.67 %, 3.05 g/cm of Song Biwei after falling fugitive dust3, flow velocity is 31.6 s/50g.
Above-described embodiment is the description of the invention, is not limitation of the invention, any pair of simple transformation of the invention
Formula afterwards, method all belong to the scope of protection of the present invention.
Claims (2)
1. the production method that a kind of automobile parts bond mixed powder with segregation-free iron copper carbon, it is characterised in that including following interior
Hold:
(1) original washing powder selected is the straight iron powder of water atomization preparation, and chemical component is 0.02 wt.% of C <, Si < 0.05
Wt.%, Mn < 0.30 wt.%, P < 0.02 wt.%, S < 0.02 wt.%, surplus Fe, wherein oxygen content is no more than 0.20
wt.%；
(2) other ingredients are selected are as follows: the mass fraction of -200 mesh atomized copper powders is 1.8-2.2 %, the mass fraction of aquadag
In 0.7-0.9%, the mass fraction of micro- wax powder AncrawaxC is 0.7-0.9%, the mass fraction of adhesive special be m:0 < m≤
2.0%；
(3) ingredient is made in above-mentioned raw materials powder in proportion, is mixed 20 minutes in batch mixer with 12 revs/min of speed, it will be special
It is sprayed into ingredient with binder by the proportional spacing 0~0.20wt.% 30s；
The adhesive special is than each composition by mass fraction: thermoplastic styrene butadiene rubber 0.3%, ethyl acetate 3%, alcohol
96.7%；
(4) while spraying adhesive special, the ingredient in batch mixer is dried；
(5) take out after powder is dried completely is finished product mixed powder.
2. the production method that a kind of automobile parts according to claim 1 bond mixed powder with segregation-free iron copper carbon,
Be characterized in that: finished product mixed powder pine is compared for 2.98-3.14g/cm3, flow velocity is 30.8-32.5 s/50g.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710854247.3A CN107598157B (en) | 2017-09-20 | 2017-09-20 | Automobile parts bond mixed powder and preparation method thereof with segregation-free iron copper carbon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710854247.3A CN107598157B (en) | 2017-09-20 | 2017-09-20 | Automobile parts bond mixed powder and preparation method thereof with segregation-free iron copper carbon |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107598157A CN107598157A (en) | 2018-01-19 |
| CN107598157B true CN107598157B (en) | 2019-11-12 |
Family
ID=61061376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710854247.3A Active CN107598157B (en) | 2017-09-20 | 2017-09-20 | Automobile parts bond mixed powder and preparation method thereof with segregation-free iron copper carbon |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107598157B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108817375A (en) * | 2018-07-23 | 2018-11-16 | 重庆智博粉末冶金有限公司 | The powder metallurgy production method and valve retainer of high-performance valve retainer |
| CN111331129A (en) * | 2020-04-26 | 2020-06-26 | 杭州屹通新材料股份有限公司 | Preparation method of CuSn10 powder with low apparent density |
| CN112077297B (en) * | 2020-08-11 | 2023-02-21 | 山东鲁银新材料科技有限公司 | Production process of novel segregation-free bonded mixed iron powder |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04191301A (en) * | 1990-11-26 | 1992-07-09 | Kawasaki Steel Corp | Iron-based powder mixed material for powder meatallurgy |
| CN102560233A (en) * | 2010-12-13 | 2012-07-11 | 巫洲 | Binder powder metallurgy mixture |
| CN105478743A (en) * | 2015-11-27 | 2016-04-13 | 宁波市群星粉末冶金有限公司 | Guider of automobile shock absorber and manufacturing method thereof |
| CN106270483B (en) * | 2016-08-16 | 2018-03-20 | 合肥波林新材料股份有限公司 | A kind of iron-based shaping mixing preparation method for material |
-
2017
- 2017-09-20 CN CN201710854247.3A patent/CN107598157B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN107598157A (en) | 2018-01-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107598157B (en) | Automobile parts bond mixed powder and preparation method thereof with segregation-free iron copper carbon | |
| US4676831A (en) | Powder mixture containing talloil free of segregation | |
| CN102802843B (en) | Iron-based mixed powder for powder metallurgy | |
| CN103143704B (en) | Mn-containing iron-based premix for powder metallurgy and preparation method thereof | |
| CN106825541A (en) | A kind of preparation method of bond powders | |
| US7309374B2 (en) | Diffusion bonded nickel-copper powder metallurgy powder | |
| CN104387090B (en) | A kind of slurry for ferrite powder mist projection granulating and preparation method thereof | |
| CN103506618B (en) | Powder used in metallurgy is containing Mn mixing comminuted steel shot and preparation method | |
| CN104985188A (en) | Method for preparing atomized iron powder containing nano ceramic phase | |
| CN105256186A (en) | Powder metallurgy bearing material and preparation method thereof | |
| CN105537580A (en) | Iron-based premixed powder for powder metallurgy and preparation method of iron-based premixed powder | |
| CN104550906A (en) | Premixed bronze powder and preparation method and application thereof | |
| CN104372237B (en) | High-compactness and the preparation method of high magnetic characteristics powder metallurgy sendust | |
| CN105081309A (en) | Method for preparing iron-based powder metallurgy material containing molybdenum | |
| CN106270483A (en) | A kind of iron-based molding compound preparation method | |
| CN105369087A (en) | Bearing material resistant to high temperature | |
| CN105400979A (en) | Porous high-aluminum zinc-based oil bearing material | |
| CN105400978A (en) | Wide-adaptability double-mechanism self-lubricating bearing material | |
| CN110508820B (en) | High-permeability copper infiltrated powder and manufacturing method thereof | |
| CN109796919A (en) | A kind of high magnetic property glue and preparation method thereof | |
| CN103409652A (en) | Method for preparing molybdenum alloy material from molybdenum oxide surface modified modified metal powder | |
| CN104325133B (en) | Nanometer iron powder sintered body containing nano ferriferrous oxide and preparation method thereof | |
| CN108856638A (en) | A kind of machine casting moulding sand binder | |
| CN104625083B (en) | The preparation method of amorphous nano alloy composite powder material | |
| CN100473479C (en) | Size controlling agent for sintered metal part and use thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Rock the town Jiande city Hangzhou city Zhejiang province 311612 Patentee after: Hangzhou Yitong New Materials Co., Ltd. Address before: Rock the town Jiande city Hangzhou city Zhejiang province 311612 Patentee before: Jiande Yitong Metal Powder Co., Ltd. |