CN101346199A - Lubricant for powder metallurgical compositions - Google Patents
Lubricant for powder metallurgical compositions Download PDFInfo
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- CN101346199A CN101346199A CNA2006800492781A CN200680049278A CN101346199A CN 101346199 A CN101346199 A CN 101346199A CN A2006800492781 A CNA2006800492781 A CN A2006800492781A CN 200680049278 A CN200680049278 A CN 200680049278A CN 101346199 A CN101346199 A CN 101346199A
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Abstract
The present invention concerns an iron-based powder metallurgical composition comprising an iron or iron-based powder and a particulate composite lubricant, said composite lubricant comprising particles having a core comprising a solid organic lubricant having fine carbon particles adhered thereon. The invention further relates to the particulate composite lubricant and a method for producing the same.
Description
The present invention relates to powder metallurgical composition.Particularly, the present invention relates to comprise the powder metal composition of new particulate composite lubricant.The invention further relates to the preparation method of this new particulate composite lubricant and this lubricant.
In powder metallurgy industry (PM industry), granulated metal, the most normally the iron-based powder metal is used to manufacture component.Manufacture method is included in the die head compacted powder metal mixture and to form living pressed compact pressed compact is released from die head, and sintering is given birth to pressed compact under the temperature that can make the sintering pressed compact with sufficient intensity and condition.By using PM to make approach, with traditional comparing, can avoid expensive machining and spillage of material, because can make net form or nearly net form parts by the solid metal machined components.PM makes the little and quite complicated parts of the most suitable manufacturing of approach, for example gear.
For helping the manufacturing of PM parts, lubricant can added in iron-based powder before the compacting.By making with lubricator, reduced the internal friction between the single metal particle in the compacting step.After another reason of adding lubricant is to be reduced in compacting green compact are released required ejection force and gross energy from die head.Lack of lubrication can cause in the living pressed compact push wearing and tearing and the scuffing at the die head place.
The problem of lack of lubrication mainly can solve in two ways: increase the amount of lubricant, or select more effective lubricant.The amount that increases lubricant can run into undesired side effect, and promptly the amount of the lubricant of Zeng Jiaing has reversed by the lubricated density increase that causes preferably.
Select preferably is to select than the effective lubricating agent.But, this is a problem, because under the PM background, have the compound agglomeration in storage process easily of good lubrication, or cause that the agglomerate in the powder metallurgical composition forms, its consequence is, the parts of back compacting and sintering may comprise bigger hole, and this static state and dynamic mechanically character to parts has adverse effect.Another problem is that the lubricant with good lubrication is usually to so-called powder properties, and for example flow velocity and apparent density (AD) have negative effect.Flow velocity because of its to the dress influence of mould but important, and the dress mould is important to the productivity ratio of PM parts.High AD is for realizing that the short filling degree of depth is important, and evenly AD is important for the variation of the size of avoiding final parts and weight.Therefore, obtain to overcome or the novel lubricant that is used for metal composites that alleviates the problems referred to above is desirable.
Goal of the invention
Therefore, the purpose of this invention is to provide and do not have good lubrication but not or lubricant with agglomeration trend of reduction.
Another object of the present invention provides to have good lubrication and produced in being used in iron or iron-based powder combination the time and flows or the lubricant of improved flowability.
Another purpose provides new sections or iron-based powder combination, and it comprises described novel lubricant and has good fluidity and high and uniform apparent density.
A purpose provides the method for making lubricant again.
Brief summary of the invention
According to the present invention, be surprised to find that, by comprising the ferrous based powder metallurgical composition of iron or iron-based powder and new particulate composite lubricant, can realize above-mentioned purpose, described compounded lubricant comprises the particle with inner core, described inner core contains the SOLID ORGANIC lubricant, is stained with thin carbon granules on the inner core.
The invention still further relates to this particulate composite lubricant itself and preparation thereof.
Detailed Description Of The Invention
The type of the SOLID ORGANIC lubricant of compounded lubricant of the present invention is not crucial, but because the shortcoming of metal-organic lubricant, organic lubricant should preferably not comprise metal ingredient.Therefore, organic lubricant can be selected from very multiple organic substance with good lubrication.The example of this class material is aliphatic acid, wax, polymer or derivatives thereof and mixture.
Preferred SOLID ORGANIC lubricant is the aliphatic acid that is selected from the group of being made up of palmitic acid, stearic acid, behenic acid; Be selected from the aliphatic acid monoamides of the group of forming by palmitamide, stearic amide, behenamide, oleamide and erucyl amide; Aliphatic acid bisamide, for example ethylene bis-stearamide (EBS), ethylene oleamide (EBO), polyethylene, Tissuemat E; Be selected from the secondary fatty acid amide of the group of forming by erucyl stearic amide, oleyl palmitamide, stearyl erucyl amide, stearyl oleamide, stearylstearic amide, oil base stearic amide.
Particularly preferred SOLID ORGANIC lubricant is stearic amide, erucyl amide, stearyl oleamide, erucyl stearic amide, stearyl erucyl amide, EBO, EBS and the EBS that combines with oleamide, erucyl amide, stearyl oleamide, stearyl erucyl amide or erucyl stearic amide.The result that can get shows at present, and the powder metal composition that comprises these compounded lubricants of the present invention is a feature with extra high apparent density and/or flow velocity.In addition, these lubricants are known with its excellent lubricity.
The particle mean size of core particle can be the 0.5-100 micron in organic, preferred 1-50 micron, most preferably 5-40 micron.In addition, the granularity of inner core is preferably at least 5 times of granularity of carbon granules, and thin carbon granules preferably forms coating on core surface.
In this article, term " thin carbon granules " is used to represent crystallization, hypocrystalline or unbodied carbon granules.Thin carbon granules can be derived from natural or synthetic graphite, carbon black, active carbon, coal and anthracite etc., and also can be the mixture of two or more wherein.Adhere to thin carbon granules on the SOLID ORGANIC lubricant core surface and can be preferably selected from particle mean size less than 10 microns and greater than the carbon black and the natural or synthetic graphite of 5 nanometers.
The primary particle size of carbon black can be less than 200 nanometers, preferably less than 100 nanometers, and most preferably less than 50 nanometers, and greater than 5 nanometers.The specific area that records by the BET method can be 20 to 1000 meters squared per gram.Carbon black can be available from for example supplier of German Degussa AG.The content of carbon black can be 0.1-25 weight % in the compounded lubricant, preferred 0.2-6 weight %, most preferably 0.5-4 weight %.
The particle mean size of graphite can be less than 10 microns and greater than 500 nanometers.The content of graphite can be 0.1-25 weight % in the compounded lubricant, preferred 0.5-10 weight %, most preferably 1-7 weight %.Graphite can be available from for example supplier of German Graphit Kropfm ü hl AG, or available from the synthetic graphite with ultra-high surface area of U.S. Asbury Carbons.
The content of compounded lubricant can be 0.05-2 weight % in the powder metal composition.
Particulate composite lubricant of the present invention can comprise the granular organic lubriation material is mixed with thin carbon granules by the preparation of ordinary particle paint-on technique.This method may further include heating steps.Heat treatment temperature can be lower than the fusing point of solid particulate organic lubricant.
The granular solids organic lubricant is fully mixed with thin carbon granules.This mixer can be a high-speed mixer.Can be in mixed process with the heating of this mixture, the temperature and time of heating is enough to make that thin carbon granules adheres on granular organic lubriation material surface in the optional in the back cooling step.
Iron-based powder can be pre-alloyed iron-based powder, or has the iron-based powder of the alloying element of diffusion bonding to the iron particle.Iron-based powder also can be the pure substantially iron powder or the mixture of pre-alloyed iron-based powder and alloying element, and this alloying element is selected from the group of being made up of Ni, Cu, Cr, Mo, Mn, P, Si, V, Nb, Ti, W and graphite.The carbon of graphite form is the alloying element that uses to a great extent, so that final sintered component has enough engineering properties.By carbon is added in the iron-based powder combination as independent element, the dissolved carbon content of iron-based powder can keep lower, to strengthen improved compressibility.Iron-based powder can be an atomized powder, for example water atomized powder, or iron sponge powder.Select the granularity of iron-based powder according to the final use of material.The particle of iron or iron-based powder can have and reaches about 500 microns average particle size most, and more preferably, particle can have 25-150 micron, the average particle size of 40-100 micron most preferably.
Powder metal composition can further comprise one or more additives, described additive is selected from the conventional kollag that uses in adhesive, processing aid, hard phase, machining property reinforcing agent (machining sintered component if desired), the PM industry, for example EBS, zinc stearate and can available from
AB's
Powdery compounded lubricant of the present invention adds that the concentration of optional kollag can be 0.05 to 2% of powder metal composition.
New sections or iron-based powder combination can be by compacting of conventional P M technology and optional sintering.
The following example is used for illustration the present invention, but scope of the present invention is not limited thereto.
Embodiment
Material
Use following material.
(1) use water atomized powder (ASC100.29, can available from
AB is Sweden) as iron-based powder.
(2) as lubricated core, use following material; Can Licowax
TMEthylene bis-stearamide (EBS), stearic amide, erucyl amide, oleyl palmitamide, stearyl oleamide, erucyl stearic amide, stearyl erucyl amide, ethylidene oleamide (EBO) and Tissuemat E available from Clariant (Germany).The particle mean size of lubricant is found in the table 2.
(3) use graphite UF-4 (from Graphit Kropfm ü hl AG, Germany) as the graphite that adds in the iron-based powder combination.
(4) coated particle is graphite UF-1 (UF1) (from Graphit Kropfm ü hl AG Germany) and the graphite 4827 (4827) (from the AsburyCarbons U.S.) that particle mean size is respectively 2 microns and 1.7 microns, and primary particle size is the carbon black (CB) (from Degussa AG Germany) of 30 nanometers.
Iron-based powder combination is made of the ASC100.29 that mixes with 0.5 weight % graphite and 0.8 weight % compounded lubricant.
By in from the high-speed mixer of Hosokawa, will mixing with variable concentrations with thin carbon granules, prepare different compounded lubricants according to the core of table 1 and 2.Carbon black adds with the concentration of 0.75,1.5,3 and 4 weight % respectively.Graphite is added into compounded lubricant with the concentration of 1.5,3,5 and 6 weight % respectively.The technological parameter of mixing method, for example the temperature of powder in mixer and the incorporation time of each composite are found in the table 2.Rotating speed in the mixer is 1000rpm, and the amount of lubricant core material is 500 grams.
Table 1. is as the greasing substance of core
| Mark | Common name |
| ES | The erucyl stearic amide |
| OP | Oleyl palmitamide |
| S | Stearic amide |
| O | Oleamide |
| E | Erucyl amide |
| EBS | Ethylene bis-stearamide |
| PW655 | Tissuemat E |
| PW1000 | Tissuemat E |
| SE | The stearyl erucyl amide |
| EBO | The ethylene oleamide |
| SO | The stearyl oleamide |
Table 2. technological parameter
| Mark | Particle mean size X50 (micron) | The temperature of powder in mixer (℃) | Incorporation time (minute) |
| S-1 | 5.2 | 50℃ | 25 |
| S-2 | 5.8 | 50℃ | 25 |
| S-3 | 15.4 | 50℃ | 25 |
| S-4 | 16.5 | 50℃ | 45 |
| S-5 | 17.8 | 50℃ | 25 |
| 8-6 | 21.5 | 50℃ | 25 |
| S-7 | 4.0 | 83℃ | 60 |
| ES-1 | 24.0 | 25℃ | 25 |
| ES-2 | 29.5 | 25℃ | 25 |
| E | 20.3 | 25℃ | 45 |
| OP | 16.0 | 25℃ | 45 |
| EBS | 8.5 | 75℃ | 55 |
| EBS/O | 25.6 | 40℃ | 20 |
| PW655 | 10.0 | 25℃ | 45 |
| PW1000 | 10.0 | 40℃ | 45 |
| SE | 27.4 | 25℃ | 45 |
| SO | 35.4 | 25℃ | 45 |
| EBS/SE | 29.0 | 25℃ | 45 |
| EBS/SO | 29.2 | 25℃ | 45 |
| EBS/ES | 20.4 | 25℃ | 45 |
| EBS/E | 26.0 | 25℃ | 15 |
| S/E | 24.3 | 25℃ | 45 |
| EBO | 16.0 | 50℃ | 10 |
By gained compounded lubricant or conventional granular lubricant (as reference) are mixed each different iron-based powder combination (mixture 1-63) of 25 kilograms of preparation in 50 kilograms of Nauta mixers with graphite and ASC100.29.SOLID ORGANIC lubricant particle in mixture 36-38 and 50-61 number solidifies and micronizing before as the used core of preparation compounded lubricant or fusion before in adding to reference to mixture then.In mixing back 24 hours,, measure the apparent density (AD) and the Hall flowability (flowability) of gained iron-based powder combination respectively according to ISO 4490 and ISO3923-1.Table 3 has shown measurement result.
As can be seen from Table 3, when using different composite lubricant of the present invention as lubricant, compare with using conventional lubricant, the flow velocity of iron-based powder combination improves, and can obtain higher apparent density.In fact, when the PM composition that contains conventional lubricant did not have flowability, the PM composition that contains compounded lubricant of the present invention provided flowability.Powder metal composition for containing compounded lubricant of the present invention (EBS that it contains stearic amide, erucyl amide, erucyl stearic amide, stearyl erucyl amide, EBO, EBS and combines with oleamide or stearyl erucyl amide) has obtained extra high apparent density and/or flow velocity.
In order to measure the trend that compounded lubricant and conventional lubricant form agglomerate, after storing at least 1 week, divide lubricant at standard 315 tm screen top sieves.Measure the amount of retaining material.
Table 4 shows that when organic lubricating wick material was covered with generation compounded lubricant of the present invention by thin carbon granules, the trend that forms agglomerate reduced.
In order to evaluate and test the trend that in the iron-based powder combination that contains conventional lubricant and compounded lubricant of the present invention respectively, forms agglomerate, with the measurement of some iron-based powder combination repetition with same type shown in the table 4.
Table 5 shows, compares with the composition that comprises conventional lubricant, and in containing the iron-based powder combination of compounded lubricant of the present invention, the trend that forms agglomerate is more not obvious.
The flow velocity of table 3. composition 1-63 and apparent density (AD)
| Mixture number | Conventional lubricant as object of reference | The inner core of lubricating composite | Adhere to the type of the carbon granules on the lubricated core | Carbon granules is with respect to the percentage (%) of lubricating composite total amount | Flow (second/50 grams) | AD (g/cm3) |
| 1 | S-1 | Do not have and flow | 2.97 | |||
| 2 | S-1 | UF1 | 3.0 | Do not have and flow | 2.99 | |
| 3 | S-1 | CB | 1.5 | 34.5 | 2.85 | |
| 4 | S-1 | CB | 3.0 | 30.4 | 2.92 | |
| 5 | S-2 | Do not have and flow | 2.98 | |||
| 6 | S-2 | UF1 | 3.0 | Do not have and flow | 2.99 | |
| 7 | S-2 | CB | 3.0 | 32.9 | 2.91 | |
| 8 | S-3 | Do not have and flow | 3.05 | |||
| 9 | S-3 | UF1 | 3.0 | 29.5 | 3.17 | |
| 10 | S-4 | Do not have and flow | 3.12 | |||
| 11 | S-4 | UF1 | 3.0 | 28.3 | 3.18 | |
| 12 | S-4 | CB | 0.75 | 27.1 | 3.21 | |
| 13 | S-4 | CB | 1.5 | 27.2 | 3.17 | |
| 14 | S-5 | 30.6 | 3.05 | |||
| 15 | S-5 | CB | 0.75 | 28.5 | 3.13 | |
| 16 | S-5 | CB | 1.5 | 27.3 | 3.13 | |
| 17 | S-5 | 4827 | 5.0 | 29.3 | 3.17 | |
| 18 | S-6 | 31.5 | 3.06 | |||
| 19 | S-6 | UF1 | 3.0 | 27.7 | 3.20 | |
| 20 | S-6 | CB | 0.75 | 26.9 | 3.21 | |
| 21 | S-7 | 28.2 | 3.17 | |||
| 22 | S-7 | UF1 | 3.0 | 26.1 | 3.19 | |
| 23 | S-7 | CB | 3.0 | 26.0 | 3.11 | |
| 24 | ES-1 | Do not have and flow | 3.10 | |||
| 25 | ES-1 | CB | 1.5 | 33.1 | 3.19 |
| Mixture number | Conventional lubricant as object of reference | The inner core of lubricating composite | Adhere to the type of the carbon granules on the lubricated core | Carbon granules is with respect to the percentage (%) of lubricating composite total amount | Flow (second/50 grams) | AD (g/cm3) |
| 26 | ES-2 | Do not have and flow | 3.13 | |||
| 27 | ES-2 | CB | 1.5 | 31.3 | 3.15 | |
| 28 | ES-2 | 4827 | 1.5 | 29.7 | 3.18 | |
| 29 | E | Do not have and flow | 3.03 | |||
| 30 | E | CB | 1.5 | 30.3 | 2.97 | |
| 31 | E | CB | 3.0 | 28.8 | 3.01 | |
| 32 | OP | Do not have and flow | 2.92 | |||
| 33 | OP | CB | 1.5 | 34.3 | 2.94 | |
| 34 | EBS | 33.5 | 3.01 | |||
| 35 | EBS | CB | 1.5 | 30.8 | 3.00 | |
| 36 | EBS/O | 31.0 | 3.03 | |||
| 37 | EBS/O | UF1 | 3.0 | 30.4 | 3.10 | |
| 38 | EBS/O | CB | 3.0 | 28.4 | 3.09 | |
| 39 | PW655 | Do not have and flow | 2.76 | |||
| 40 | PW655 | CB | 1.5 | 32.1 | 2.82 | |
| 41 | PW1000 | Do not have and flow | 2.78 | |||
| 42 | PW1000 | CB | 1.5 | 32.5 | 2.85 | |
| 43 | Zinc stearate | 35.4 | 3.18 | |||
| 44 | SE | Do not have and flow | 2.96 | |||
| 45 | SE | CB | 3.0 | 29.9 | 3.11 | |
| 46 | SE | UF1 | 6.0 | 31.2 | 3.08 | |
| 47 | SE | 4827 | 5.0 | 30.4 | 3.10 | |
| 48 | SO | Do not have and flow | 2.95 | |||
| 49 | SO | CB | 1.5 | 30.9 | 2.98 | |
| 50 | EBS/SE | Do not have and flow | 2.98 | |||
| 51 | EBS/SE | CB | 1.5 | 29.6 | 3.17 |
| 52 | EBS/SO | Do not have and flow | 2.95 | |||
| 53 | EBS/SO | CB | 1.5 | 30.9 | 3.03 | |
| 54 | EBS/ES | Do not have and flow | 3.00 | |||
| 55 | EBS/ES | CB | 1.5 | 33.4 | 2.99 | |
| 56 | EBS/E | Do not have and flow | 2.96 | |||
| 57 | EBS/E | CB | 1.5 | 30.0 | 3.03 | |
| 58 | S/E | Do not have and flow | 3.00 | |||
| 59 | S/E | CB | 4.0 | 29.1 | 3.16 | |
| 60 | S/E | UF1 | 6.0 | 28.4 | 3.17 | |
| 61 | S/E | 4827 | 5.0 | 28.2 | 3.18 | |
| 62 | EBO | Do not have and flow | 2.95 | |||
| 63 | EBO | CB | 3.0 | 34.0 | 3.04 |
Table 4. conventional lubricant and lubricating composite of the present invention form the trend of agglomerate
| Conventional lubricant | The core of lubricating composite | Adhere to the type of the carbon granules on the lubricated core | Carbon granules is with respect to the percentage (%) of lubricating composite total amount | Form the trend of agglomerate |
| S-1 | Agglomeration | |||
| S-1 | CB | 1.5 | Less agglomeration | |
| S-1 | CB | 3.0 | Less agglomeration | |
| S-2 | Agglomeration | |||
| S-2 | CB | 3.0 | Less agglomeration | |
| S-4 | Agglomeration | |||
| S-4 | UF1 | 3.0 | No agglomeration | |
| S-4 | CB | 0.75 | No agglomeration | |
| S-4 | CB | 1.5 | No agglomeration | |
| S-5 | Agglomeration |
| S-5 | CB | 0.75 | No agglomeration | |
| S-5 | CB | 1.5 | No agglomeration | |
| S-5 | 4827 | S.0 | No agglomeration | |
| S-7 | Agglomeration | |||
| S-7 | UF1 | 3.0 | No agglomeration | |
| S-7 | CB | 0.75 | No agglomeration | |
| ES-2 | Agglomeration | |||
| ES-2 | CB | 1.5 | No agglomeration | |
| ES-2 | 4827 | 1.5 | No agglomeration | |
| E | Agglomeration | |||
| E | CB | 1.5 | Less agglomeration | |
| OP | Agglomeration | |||
| OP | CB | 1.5 | No agglomeration | |
| EBS | No agglomeration | |||
| EBS | CB | 1.5 | No agglomeration | |
| EBS/O | No agglomeration | |||
| EBS/O | UF1 | 3.0 | No agglomeration | |
| SE | Agglomeration | |||
| SE | CB | 1.5 | No agglomeration | |
| SE | UF1 | 6.0 | No agglomeration | |
| SE | 4827 | 5.0 | No agglomeration | |
| SO | Agglomeration | |||
| SO | CB | 1.5 | No agglomeration | |
| EBS/SE | Agglomeration | |||
| EBS/SE | CB | 1.5 | No agglomeration | |
| EBS/SO | Agglomeration | |||
| EBS/SO | CB | 1.5 | No agglomeration | |
| EBS/ES | Agglomeration | |||
| EBS/ES | CB | 1.5 | No agglomeration | |
| EBS/E | Agglomeration | |||
| EBS/E | CB | 1.5 | No agglomeration | |
| S/E | Agglomeration | |||
| S/E | CB | 4.0 | No agglomeration | |
| S/E | UF1 | 6.0 | No agglomeration | |
| S/E | 4827 | 5.0 | No agglomeration | |
| EBO | Agglomeration | |||
| EBO | CB | 3.0 | No agglomeration |
Table 5. forms the trend of agglomerate in the iron-based powder combination that contains conventional lubricant and compounded lubricant of the present invention
| Mixture number | Conventional lubricant | The core of compounded lubricant | Adhere to the type of the carbon granules on the lubricated core | Carbon granules is with respect to the percentage (%) of lubricating composite total amount | Form the trend of agglomerate |
| 1 | S-1 | Agglomeration | |||
| 3 | S-1 | CB | 1.5 | No agglomeration | |
| 4 | S-1 | CB | 3.0 | No agglomeration | |
| 5 | S-2 | Agglomeration | |||
| 7 | S-2 | CB | 3.0 | No agglomeration | |
| 24 | ES-1 | Agglomeration | |||
| 25 | ES-1 | CB | 1.5 | No agglomeration | |
| 29 | E | Agglomeration | |||
| 30 | E | CB | 1.5 | Less agglomeration | |
| 31 | E | CB | 3 | No agglomeration | |
| 32 | OP | Agglomeration | |||
| 33 | OP | CB | 1.5 | No agglomeration | |
| 34 | EBS | No agglomeration | |||
| 35 | EBS | CB | 1.5 | No agglomeration | |
| 39 | PW655 | Agglomeration | |||
| 40 | PW655 | CB | 1.5 | No agglomeration | |
| 41 | PW1000 | Agglomeration | |||
| 42 | PW1000 | CB | 1.5 | No agglomeration | |
| 43 | Zinc stearate | No agglomeration |
| 44 | SE | Agglomeration | |||
| 45 | SE | CB | 1.5 | No agglomeration | |
| 46 | SE | UF1 | 6.0 | No agglomeration | |
| 47 | SE | 4827 | 5.0 | No agglomeration | |
| 48 | SO | Agglomeration | |||
| 49 | SO | CB | 1.5 | No agglomeration | |
| 50 | EBS/SE | Agglomeration | |||
| 51 | EBS/SE | CB | 1.5 | No agglomeration | |
| 52 | EBS/SO | Agglomeration | |||
| 53 | EBS/SO | CB | 1.5 | No agglomeration | |
| 54 | EBS/ES | Agglomeration | |||
| 55 | EBS/ES | CB | 1.5 | No agglomeration | |
| 56 | EBS/E | Agglomeration | |||
| 57 | EBS/E | CB | 1.5 | No agglomeration | |
| 58 | S/E | Agglomeration | |||
| 59 | S/E | CB | 4.0 | No agglomeration | |
| 60 | S/E | UF1 | 6.0 | No agglomeration | |
| 61 | S/E | 4827 | 5.0 | No agglomeration | |
| 62 | EBO | Agglomeration | |||
| 63 | EBO | CB | 3.0 | No agglomeration |
Claims (14)
1. the ferrous based powder metallurgical composition comprises iron or iron-based powder and particulate composite lubricant, and described compounded lubricant comprises the particle with inner core, and described inner core contains the SOLID ORGANIC lubricant, is stained with thin carbon granules on the inner core.
2. according to the composition of claim 1, wherein said carbon granules is selected from natural or synthetic graphite, carbon black, active carbon, coal and anthracite.
3. according to the composition of claim 1, wherein said carbon granules is selected from natural or synthetic graphite and carbon black.
4. according to the composition of claim 1, wherein said carbon granules forms coating on inner core.
5. according to the composition of claim 1, wherein said organic interior core particle is selected from the group of being made up of aliphatic acid, wax, polymer, or derivatives thereof and mixture.
6. according to the composition of claim 1, the particle mean size of wherein said organic interior core particle is 0.5 to 100 micron.
7. according to the composition of claim 1, wherein the content of compounded lubricant is 0.05 to 2 weight % in the powder metal composition.
8. according to the composition of claim 1, wherein the granularity of inner core is at least 5 times of granularity of carbon granules.
9. according to the composition of claim 2, wherein the granularity of carbon black is less than 200 nanometers.
10. according to the composition of claim 2, wherein the content of carbon black is 0.1 to 25 weight % in the compounded lubricant.
11. according to the composition of claim 2, wherein the particle mean size of graphite is less than 10 microns.
12. according to the composition of claim 2, wherein the content of graphite is 0.1 to 25 weight % in the compounded lubricant.
13. be used for the compounded lubricant of powder metal composition, wherein this compounded lubricant comprises the particle with inner core, described inner core contains the SOLID ORGANIC lubricant, is stained with thin carbon granules on the inner core.
14. make the method for particulate composite lubricant, comprising: granular organic lubriation material and thin carbon granules are mixed making carbon granules adhere under the lip-deep condition of granular organic lubriation material.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US75467205P | 2005-12-30 | 2005-12-30 | |
| SE05029343 | 2005-12-30 | ||
| US60/754,672 | 2005-12-30 | ||
| SE0502934 | 2005-12-30 | ||
| SE0502934-3 | 2005-12-30 | ||
| PCT/SE2006/001384 WO2007078228A1 (en) | 2005-12-30 | 2006-12-06 | Lubricant for powder metallurgical compositions |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101346199A true CN101346199A (en) | 2009-01-14 |
| CN101346199B CN101346199B (en) | 2011-01-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006800492781A Active CN101346199B (en) | 2005-12-30 | 2006-12-06 | Iron basis powder metallurgical compositions, lubricant for powder metallurgical compositions, and method for manufacturing granular compound lubricant |
Country Status (4)
| Country | Link |
|---|---|
| CN (1) | CN101346199B (en) |
| BR (1) | BRPI0620808B1 (en) |
| ES (1) | ES2665689T3 (en) |
| UA (1) | UA95096C2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105290388A (en) * | 2014-07-04 | 2016-02-03 | 通用电气公司 | Powder treating method and corresponding treated powder |
| CN105642886A (en) * | 2014-11-27 | 2016-06-08 | 现代自动车株式会社 | Powder metallurgical method |
| CN105722624A (en) * | 2013-09-12 | 2016-06-29 | 加拿大国立研究院 | Lubricant for powder metallurgy and metal powder compositions containing said lubricant |
| CN108380863A (en) * | 2017-02-03 | 2018-08-10 | 株式会社神户制钢所 | Mixed powder for powder metallurgy and its manufacturing method |
| CN108715770A (en) * | 2018-07-03 | 2018-10-30 | 华侨大学 | A kind of anthracite lubricating oil and preparation method thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE9704494D0 (en) * | 1997-12-02 | 1997-12-02 | Hoeganaes Ab | Lubricant for metallurgical powder compositions |
| SE9803171D0 (en) * | 1998-09-18 | 1998-09-18 | Hoeganaes Ab | Hot compaction or steel powders |
| SE9903231D0 (en) * | 1999-09-09 | 1999-09-09 | Hoeganaes Ab | Powder composition |
| US6464751B2 (en) * | 2000-10-06 | 2002-10-15 | Kawasaki Steel Corporation | Iron-based powders for powder metallurgy |
| CN100558488C (en) * | 2004-01-23 | 2009-11-11 | 杰富意钢铁株式会社 | Iron based powder for powder metallurgy |
-
2006
- 2006-06-12 UA UAA200809902A patent/UA95096C2/en unknown
- 2006-12-06 BR BRPI0620808-8A patent/BRPI0620808B1/en not_active IP Right Cessation
- 2006-12-06 ES ES06824513.3T patent/ES2665689T3/en active Active
- 2006-12-06 CN CN2006800492781A patent/CN101346199B/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105722624A (en) * | 2013-09-12 | 2016-06-29 | 加拿大国立研究院 | Lubricant for powder metallurgy and metal powder compositions containing said lubricant |
| CN105722624B (en) * | 2013-09-12 | 2019-09-06 | 加拿大国立研究院 | Lubricant for powder metallurgy and the metal-powder compositions comprising the lubricant |
| CN110484342A (en) * | 2013-09-12 | 2019-11-22 | 加拿大国立研究院 | Lubricant for powder metallurgy and the metal-powder compositions comprising the lubricant |
| CN110484342B (en) * | 2013-09-12 | 2022-03-01 | 加拿大国立研究院 | Lubricant for powder metallurgy and metal powder composition comprising the same |
| CN105290388A (en) * | 2014-07-04 | 2016-02-03 | 通用电气公司 | Powder treating method and corresponding treated powder |
| US9994716B2 (en) | 2014-07-04 | 2018-06-12 | General Electric Company | Method for treating powder by dry mixing and powder treated thereby |
| CN105290388B (en) * | 2014-07-04 | 2020-04-07 | 通用电气公司 | Powder treatment method and correspondingly treated powder |
| CN105642886A (en) * | 2014-11-27 | 2016-06-08 | 现代自动车株式会社 | Powder metallurgical method |
| CN108380863A (en) * | 2017-02-03 | 2018-08-10 | 株式会社神户制钢所 | Mixed powder for powder metallurgy and its manufacturing method |
| CN108715770A (en) * | 2018-07-03 | 2018-10-30 | 华侨大学 | A kind of anthracite lubricating oil and preparation method thereof |
| CN108715770B (en) * | 2018-07-03 | 2021-02-02 | 华侨大学 | Anthracite lubricating oil and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101346199B (en) | 2011-01-19 |
| BRPI0620808A2 (en) | 2011-11-22 |
| ES2665689T3 (en) | 2018-04-26 |
| BRPI0620808B1 (en) | 2014-12-30 |
| UA95096C2 (en) | 2011-07-11 |
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