CN105149570A - Ferronickel base antifriction powder metallurgy composite material and preparation method thereof - Google Patents
Ferronickel base antifriction powder metallurgy composite material and preparation method thereof Download PDFInfo
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- CN105149570A CN105149570A CN201510542020.6A CN201510542020A CN105149570A CN 105149570 A CN105149570 A CN 105149570A CN 201510542020 A CN201510542020 A CN 201510542020A CN 105149570 A CN105149570 A CN 105149570A
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Abstract
The invention discloses a ferronickel base antifriction powder metallurgy composite material and a preparation method thereof. The composite material comprises the following components in percentage by mass: 1.0-2.5% of copper, 3.8-6.2% of nickel, 0.28-1.65% of titanium, 1.0-2.7% of chromium, 0.68-2.65% of zinc, 0.5-2.6% of lubricant, 1.2-2.4% of graphite, 1.5-2.9% of stearate, and the balance of iron. The lubricant is paraffin or silicone oil. The stearate is barium stearate or zinc stearate. As the metal components are combined, and the lubricant is added, the wear resistance and the sintering-quenching mechanical performance of the composite material are effectively improved; the composite material is particularly suitable for manufacturing such parts, having high requirements on the frictional performance, as bearings and support bushings, can prolong the service life, and reduces the cost; and the preparation method is simple, and is suitable for large-scale industrial production.
Description
Technical field
The present invention relates to a kind of ferronickel base antifriction composite powder metallurgy material and preparation method thereof, belong to powdered metallurgical material technical field.
Background technology
Powder metallurgy is a logging material preparation and the advanced manufacturing technology of part forming in one.Powder metallurgy can reduce machining amount and save material, and can make up the blank that conventional casting methods cannot prepare the materials such as porous, difficult shop metal, pottery.Owing to having, stock utilization is high, production cost is low, the advantages such as good combination property, and powdered metal parts has been widely used in the Important Economic fields such as communications and transportation, machinery, electronics, especially at automobile manufacturing field.The fast development of auto industry greatly facilitates the application of powder metallurgy parts in automobile production.Since 20 century 70s, auto industry uses the alloy material of lightweight to replace traditional ferrous materials, as aluminium alloy, titanium alloy etc. in a large number.Iron powder is one of important foundation raw material of powder metallurgy industry, and iron powder is the production of alloy iron powder and output thereof particularly, is one of important symbol of the national powder metallurgy industry development level of measurement one.In recent years, powder metallurgy industry development is very rapid, the market demand of iron-based powder also has obvious growth on the whole, the iron powder annual production of the current world is more than 850,000 tons, iron powder output 85% for the manufacture of powdered metal parts, wherein the powdered metal parts of 70 ~ 83% is used for auto industry, and all the other iron powders are used for machine components and manufacture chemical industry, magnetic material, cutting, welding rod etc.
Along with the progress of science and technology, the performance requirement of every field to material is more and more higher.Wish that they possess outside traditional good mechanical property, wish that again they can be on active service in the particular surroundings of high pressure, high temperature, high vacuum, intense radiation and corrosion.Obviously, traditional material can not meet these requirements.This promotes the development of composite, it had both possessed the advantage of matrix material, turn increased new capability, but be not simply add and.Common reinforcement has fiber, particle, whisker, and the materials such as Cu-W, Cu-Mo are also used as wild phase Metal Phase.Compare traditional metal materials, metal-base composites specific strength, specific modulus are high, and the coefficient of expansion is low, and high-temperature behavior is good; Compare ceramic material, plasticity and impact flexibility high; Compare macromolecular material, heat resistance and conduction, thermal conductivity are good.
Along with the continuous renewal of car, truck is regenerated, the needs of the abilities such as high pass filter, strong load-carrying, requirements at the higher level are proposed to performances such as the heat-resisting, wear-resisting of the parts such as engine, Valve seat, wheel shaft and corrosion resistant candles, also proposes very large challenge to metallurgical material.Research has high-wearing feature, and the automobile bearing of crushing resistance more and more receives the concern of researcher.
Summary of the invention
The object of this invention is to provide a kind of ferronickel base antifriction composite powder metallurgy material and preparation method thereof, by selection and the consumption combination thereof of metal ingredient, add lubricant, mechanical property after the anti-wear performance of effective raising composite and sintering-quenching, be specially adapted to make bearing, support sleeve etc. and high parts are required to frictional behaviour, can increase the service life, reduce costs.
To achieve these goals, the technological means that the present invention adopts is:
Ferronickel base antifriction composite powder metallurgy material, composition and each composition quality percentage composition are: copper 1.0% ~ 2.5%, nickel 3.8% ~ 6.2%, titanium 0.28% ~ 1.65%, chromium 1.0% ~ 2.7%, zinc 0.68% ~ 2.65%, lubricant 0.5% ~ 2.6%, graphite 1.2% ~ 2.4%, stearate 1.5% ~ 2.9%, surplus is iron.
Described lubricant is paraffin or silicone oil.
Described stearate is barium stearate or zinc stearate.
Described ferronickel base antifriction composite powder metallurgy material, composition and each composition quality percentage composition are: copper 1.5% ~ 2.0%, nickel 4.4% ~ 5.3%, titanium 0.75% ~ 1.15%, chromium 1.4% ~ 2.2%, zinc 1.38% ~ 1.95%, lubricant 1.3% ~ 2.1%, graphite 1.6% ~ 2.0%, stearate 1.8% ~ 2.2%, surplus is iron.
The preparation method of described ferronickel base antifriction composite powder metallurgy material, comprises the steps:
1) batch mixing: each composition is joined in batch mixer and carries out batch mixing, rotating speed is 40 ~ 60rpm, and mixing time is 40 ~ 60min;
2) join in press equipment by the batch mixing of step 1), extrusion forming, pressure is 300 ~ 500MPa, pressurize 20 ~ 40min;
3) by step 2) sample that suppresses sinters in sintering furnace, and sintering temperature is 550 ~ 750 DEG C, and sintering time is 20 ~ 40min, and then at 280 ~ 350 DEG C, be incubated 10 ~ 30min, cancellation, is finally incubated tempering 1 ~ 3h at 180 ~ 200 DEG C;
4) casting: alloy material step 3) being incubated tempering is cast as required parts.
Step 2) in extrusion forming pressure be preferably 400MPa, pressurize 30min.
In step 3), sintering temperature is preferably 650 DEG C, and holding temperature is 320 DEG C.
Beneficial effect: the invention provides a kind of ferronickel base antifriction composite powder metallurgy material, by the combination of metal ingredient, add lubricant, mechanical property after the anti-wear performance of effective raising composite and sintering-quenching, be specially adapted to make bearing, support sleeve etc. and high parts are required to frictional behaviour, can increase the service life, reduce costs; Preparation method is simple, is applicable to large-scale industrial production.
Detailed description of the invention
Embodiment 1
Ferronickel base antifriction composite powder metallurgy material, composition and each composition quality percentage composition are: copper 1.0%, nickel 3.8%, titanium 0.28%, chromium 1.0%, zinc 0.68%, paraffin 0.5%, graphite 1.2%, zinc stearate 1.5%, and surplus is iron.
Preparation method, comprises the steps:
1) batch mixing: each composition is joined in batch mixer and carries out batch mixing, rotating speed is 50rpm, and mixing time is 48min;
2) join in press equipment by the batch mixing of step 1), extrusion forming, pressure is 400MPa, pressurize 30min;
3) by step 2) sample that suppresses sinters in sintering furnace, and sintering temperature is 650 DEG C, and sintering time is 30min, then at 320 DEG C, is incubated 20min, cancellation, finally at 180 DEG C, is incubated tempering 2h;
4) casting: alloy material step 3) being incubated tempering is cast as bearing.
Embodiment 2
Ferronickel base antifriction composite powder metallurgy material, composition and each composition quality percentage composition are: copper 2.5%, nickel 6.2%, titanium 1.65%, chromium 2.7%, zinc 2.65%, paraffin 2.6%, graphite 2.4%, zinc stearate 2.9%, and surplus is iron.
Preparation method, comprises the steps:
1) batch mixing: each composition is joined in batch mixer and carries out batch mixing, rotating speed is 50rpm, and mixing time is 48min;
2) join in press equipment by the batch mixing of step 1), extrusion forming, pressure is 400MPa, pressurize 30min;
3) by step 2) sample that suppresses sinters in sintering furnace, and sintering temperature is 650 DEG C, and sintering time is 30min, then at 320 DEG C, is incubated 20min, cancellation, finally at 180 DEG C, is incubated tempering 2h;
4) casting: alloy material step 3) being incubated tempering is cast as bearing.
Embodiment 3
Ferronickel base antifriction composite powder metallurgy material, composition and each composition quality percentage composition are: copper 1.5%, nickel 4.4%, titanium 0.75%, chromium 1.4%, zinc 1.38%%, silicone oil 1.3%, graphite 1.6%, barium stearate 1.8%, and surplus is iron.
Preparation method, comprises the steps:
1) batch mixing: each composition is joined in batch mixer and carries out batch mixing, rotating speed is 50rpm, and mixing time is 48min;
2) join in press equipment by the batch mixing of step 1), extrusion forming, pressure is 400MPa, pressurize 30min;
3) by step 2) sample that suppresses sinters in sintering furnace, and sintering temperature is 650 DEG C, and sintering time is 30min, then at 320 DEG C, is incubated 20min, cancellation, finally at 180 DEG C, is incubated tempering 2h;
4) casting: alloy material step 3) being incubated tempering is cast as bearing.
Embodiment 4
Ferronickel base antifriction composite powder metallurgy material, composition and each composition quality percentage composition are: copper 2.0%, nickel 5.3%, titanium 1.15%, chromium 2.2%, zinc 1.95%, silicone oil 2.1%, graphite 2.0%, barium stearate 2.2%, and surplus is iron.
Preparation method, comprises the steps:
1) batch mixing: each composition is joined in batch mixer and carries out batch mixing, rotating speed is 50rpm, and mixing time is 48min;
2) join in press equipment by the batch mixing of step 1), extrusion forming, pressure is 400MPa, pressurize 30min;
3) by step 2) sample that suppresses sinters in sintering furnace, and sintering temperature is 650 DEG C, and sintering time is 30min, then at 320 DEG C, is incubated 20min, cancellation, finally at 180 DEG C, is incubated tempering 2h;
4) casting: alloy material step 3) being incubated tempering is cast as bearing.
Embodiment 5
Ferronickel base antifriction composite powder metallurgy material, composition and each composition quality percentage composition are: copper 1.8%, nickel 5.0%, titanium 0.94%, chromium 1.8%, zinc 1.68%, paraffin 1.6%, graphite 2.0%, zinc stearate 2.0%, and surplus is iron.
Preparation method, comprises the steps:
1) batch mixing: each composition is joined in batch mixer and carries out batch mixing, rotating speed is 50rpm, and mixing time is 48min;
2) join in press equipment by the batch mixing of step 1), extrusion forming, pressure is 400MPa, pressurize 30min;
3) by step 2) sample that suppresses sinters in sintering furnace, and sintering temperature is 650 DEG C, and sintering time is 30min, then at 320 DEG C, is incubated 20min, cancellation, finally at 180 DEG C, is incubated tempering 2h;
4) casting: alloy material step 3) being incubated tempering is cast as bearing.
Carry out performance test, friction and wear test to the fluid origin bearing of embodiment 1 ~ 5: Bian WTM-2E friction wear testing machine, friction pair Bian GCrl5 ball-bearing steel, load is l00g, and friction diameter is 8mm, and rotating speed is 200r/min, and the time is 20min.First expose smooth specimen surface by treating that mill surface scale grinds off before experiment, horizontal revolving motion made by dish, and sample is by upper fixture and coil perpendicular contact, both mutual fretting wears.Wearing-in period is 20min, to ensure to reach stable state of wear.Matter damage amount SartiusMicr electronic balance records, and the change of research sample quality in wear process, the abrasion resistance results weighing material is shown in Table 1.
Table 1:
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | |
| Wear extent/% | 2.2 | 1.8 | 1.1 | 1.1 | 0.6 |
| Hot strength/MPa | 1065 | 1028 | 1278 | 1291 | 1526 |
Claims (7)
1. ferronickel base antifriction composite powder metallurgy material, it is characterized in that composition and each composition quality percentage composition are: copper 1.0% ~ 2.5%, nickel 3.8% ~ 6.2%, titanium 0.28% ~ 1.65%, chromium 1.0% ~ 2.7%, zinc 0.68% ~ 2.65%, lubricant 0.5% ~ 2.6%, graphite 1.2% ~ 2.4%, stearate 1.5% ~ 2.9%, surplus is iron.
2. ferronickel base antifriction composite powder metallurgy material according to claim 1, is characterized in that: described lubricant is paraffin or silicone oil.
3. ferronickel base antifriction composite powder metallurgy material according to claim 1, is characterized in that: described stearate is barium stearate or zinc stearate.
4. ferronickel base antifriction composite powder metallurgy material according to claim 1, it is characterized in that: composition and each composition quality percentage composition are: copper 1.5% ~ 2.0%, nickel 4.4% ~ 5.3%, titanium 0.75% ~ 1.15%, chromium 1.4% ~ 2.2%, zinc 1.38% ~ 1.95%, lubricant 1.3% ~ 2.1%, graphite 1.6% ~ 2.0%, stearate 1.8% ~ 2.2%, surplus is iron.
5. the preparation method of ferronickel base antifriction composite powder metallurgy material described in any one in claim 1 ~ 4, is characterized in that, comprise the steps:
1) batch mixing: each composition is joined in batch mixer and carries out batch mixing, rotating speed is 40 ~ 60rpm, and mixing time is 40 ~ 60min;
2) join in press equipment by the batch mixing of step 1), extrusion forming, pressure is 300 ~ 500MPa, pressurize 20 ~ 40min;
3) by step 2) sample that suppresses sinters in sintering furnace, and sintering temperature is 550 ~ 750 DEG C, and sintering time is 20 ~ 40min, and then at 280 ~ 350 DEG C, be incubated 10 ~ 30min, cancellation, is finally incubated tempering 1 ~ 3h at 180 ~ 200 DEG C;
4) casting: alloy material step 3) being incubated tempering is cast as required parts.
6. the preparation method of ferronickel base antifriction composite powder metallurgy material according to claim 5, is characterized in that, step 2) in extrusion forming pressure be 400MPa, pressurize 30min.
7. the preparation method of ferronickel base antifriction composite powder metallurgy material according to claim 5, it is characterized in that, in step 3), sintering temperature is 650 DEG C, and holding temperature is 320 DEG C.
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| JP4761586B1 (en) * | 2010-03-25 | 2011-08-31 | Ｊｘ日鉱日石金属株式会社 | High-strength titanium copper plate and manufacturing method thereof |
| CN104353826A (en) * | 2014-10-29 | 2015-02-18 | 苏州莱特复合材料有限公司 | Wear-resistant and corrosion-resistant nickel-base composite material and powder metallurgy preparation method thereof |
| CN104372234A (en) * | 2014-10-29 | 2015-02-25 | 苏州莱特复合材料有限公司 | High-wear-resistance titanium-copper nickel-silicon alloy composite material and preparation method thereof |
| CN104384503A (en) * | 2014-10-30 | 2015-03-04 | 苏州莱特复合材料有限公司 | Ferrum- and copper-based powder metallurgy antifriction material and preparation method thereof |
| CN104384497A (en) * | 2014-10-28 | 2015-03-04 | 苏州莱特复合材料有限公司 | Magnesium-based powder metallurgy composite material and preparation method thereof |
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- 2015-08-31 CN CN201510542020.6A patent/CN105149570A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4761586B1 (en) * | 2010-03-25 | 2011-08-31 | Ｊｘ日鉱日石金属株式会社 | High-strength titanium copper plate and manufacturing method thereof |
| CN104384497A (en) * | 2014-10-28 | 2015-03-04 | 苏州莱特复合材料有限公司 | Magnesium-based powder metallurgy composite material and preparation method thereof |
| CN104353826A (en) * | 2014-10-29 | 2015-02-18 | 苏州莱特复合材料有限公司 | Wear-resistant and corrosion-resistant nickel-base composite material and powder metallurgy preparation method thereof |
| CN104372234A (en) * | 2014-10-29 | 2015-02-25 | 苏州莱特复合材料有限公司 | High-wear-resistance titanium-copper nickel-silicon alloy composite material and preparation method thereof |
| CN104384503A (en) * | 2014-10-30 | 2015-03-04 | 苏州莱特复合材料有限公司 | Ferrum- and copper-based powder metallurgy antifriction material and preparation method thereof |
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Application publication date: 20151216 |