CN103602922B - A kind of powder metallurgical ferrous alloy and preparation method thereof - Google Patents

A kind of powder metallurgical ferrous alloy and preparation method thereof Download PDF

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CN103602922B
CN103602922B CN201310469258.1A CN201310469258A CN103602922B CN 103602922 B CN103602922 B CN 103602922B CN 201310469258 A CN201310469258 A CN 201310469258A CN 103602922 B CN103602922 B CN 103602922B
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ferrous alloy
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CN103602922A (en
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胡光荣
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Foshan Bei Tai alloy products Co., Ltd.
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TONGLING XINCHUANG FLUID TECHNOLOGY Co Ltd
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Abstract

The invention discloses a kind of powder metallurgical ferrous alloy, it is characterized in that, be made up of the raw material of following weight part: iron powder 82-83, chromium 11.2-11.6, molybdenum 2.2-2.3, nickel 3.0-3.3, silicon 1.2-1.6, manganese 4.4-4.7, Cu? 1.2-1.5, Mg? 3.1-3.3, Zn? 1.3-1.5, Be? 0.35-0.55, auxiliary agent 2-3; Ferrous alloy hardness of the present invention is large, wear resisting property is excellent, and welding property is better, and good stability is not easy to crack, and cost is low, and manufacture craft is simple, and long service life, use range is wide.

Description

A kind of powder metallurgical ferrous alloy and preparation method thereof
Technical field
The present invention relates to field of powder metallurgy, particularly a kind of powder metallurgical ferrous alloy and preparation method thereof.
Background technology
Ferrous alloy is the class that in hard material, usage quantity is large and wide, and the maximum feature of this kind of material is that over-all properties is good, and serviceability limitation is very wide, and material price is cheapest.
Powder metallurgy be produce metal-powder or with metal-powder (or mixture of metal-powder and non-metal powder) as raw material, through shaping and sintering, produce the industrial technology of metallic substance, matrix material and all kinds goods.At present, powder metallurgy technology has been widely used in the fields such as traffic, machinery, electronics, aerospace, weapons, biology, new forms of energy, information and nuclear industry, becomes one of branch of most development vitality in novel material science.Powder metallurgy technology possess significantly energy-conservation, economize the high and series of advantages such as good stability of material, excellent performance, Product Precision, be very suitable for producing in enormous quantities.In addition, the material that part conventional casting methods and machining process cannot be prepared and complicated shape also available powders metallurgical technology manufacture, thus enjoy the attention of industry member.Powder metallurgy structural part product material composition does not limit by melting, both can add alloying constituent, also can add other structural constituent, and adjusts as requested in sizable scope, and then can reach the effect of mating with steel part in mechanical property.
Powder metallurgy mechanization degree is high, can reduce personnel, can raise the efficiency again, and then cost-saving.Powder metallurgy technology can replace traditional manufacturing process, for the vast traditional forms of enterprises is cost-saving.
So study the formula of the powder metallurgy of various component of machine, adapt to different needs, have great importance.
Summary of the invention
The object of this invention is to provide a kind of powder metallurgical ferrous alloy and preparation method thereof.
In order to realize object of the present invention, the present invention is by following scheme implementation:
A kind of powder metallurgical ferrous alloy, is made up of the raw material of following weight part: iron powder 82-83, chromium 11.2-11.6, molybdenum 2.2-2.3, nickel 3.0-3.3, silicon 1.2-1.6, manganese 4.4-4.7, Cu1.2-1.5, Mg3.1-3.3, Zn1.3-1.5, Be0.35-0.55, auxiliary agent 2-3;
Described auxiliary agent is made up of the raw material of following weight part: iron powder 30-34, aluminium hydroxide 2-3, zinc sulfate 1-2, medical stone 1-2, nano-sized carbon 1-2, jade 2-3, polyisobutene 2-3, aluminate coupling agent DL-4111-2, carborundum powder 2-3; Preparation method is by iron powder, aluminium hydroxide, zinc sulfate, medical stone mixing, grind to form 200-300 order powder, then add aluminate coupling agent DL-411 and mix, under 10-15Mpa, be pressed into blank, then, calcine 3-4 hour at sending into 920-950 DEG C, after cooling, be ground into 300-400 order powder, mix with other remaining component, be heated to 60-70 DEG C, under 1200-1500 rev/min, stir 1-2 hour, to obtain final product.
Powder metallurgical ferrous alloy of the present invention, be made up of following concrete steps:
(1) by iron powder, chromium, molybdenum, nickel, manganese, Cu, Mg, Zn mixing, add in suitable quantity of water, send into ball milling in ball mill, obtain 250-400 order powder, then, spraying dry, oven dry, make bulk at 8-10Mpa pressure, then under nitrogen protection atmosphere 600-650 DEG C carry out sintering 8-10 hour, cross 200-400 mesh sieve by after the crushing material after sintering;
(2) other remaining component is mixed;
(3) step (1), (2) material after mixing and stirring 65-85 minute, are loaded mould, are pressed into base at 55-65 DEG C;
(4) pressed compact is placed in sintering oven, to 650-750 DEG C of condition, sinters 1.5-2 hour with 6-8 DEG C/min of ramp; Then to 1100-1150 DEG C of condition, 2-3 hour is sintered with 5-7 DEG C/min of ramp; Sinter 1-2 hour under being cooled to 350-450 DEG C of condition with 9-12 DEG C/min of speed again, in last air, be cooled to room temperature.
Ferrous alloy hardness of the present invention is large, wear resisting property is excellent, and welding property can be better, and good stability is not easy to crack, and cost is low, and manufacture craft is simple, and long service life, use range is wide.
Specific embodiments
Below by specific examples, the present invention is described in detail.
A kind of powder metallurgical ferrous alloy, is made up of the raw material of following weight part (kilogram): iron powder 82, chromium 11.2, molybdenum 2.2, nickel 3.0, silicon 1.2, manganese 4.4, Cu1.2, Mg3.1, Zn1.3, Be0.35, auxiliary agent 2;
Described auxiliary agent is made up of the raw material of following weight part (kilogram): iron powder 30, aluminium hydroxide 2, zinc sulfate 1, medical stone 1, nano-sized carbon 1, jade 2, polyisobutene 2, aluminate coupling agent DL-4111, carborundum powder 2; Preparation method is by iron powder, aluminium hydroxide, zinc sulfate, medical stone mixing, grind to form 200-300 order powder, then add aluminate coupling agent DL-411 and mix, under 10-15Mpa, be pressed into blank, then, calcine 3-4 hour at sending into 920-950 DEG C, after cooling, be ground into 300-400 order powder, mix with other remaining component, be heated to 60-70 DEG C, under 1200-1500 rev/min, stir 1-2 hour, to obtain final product.
Powder metallurgical ferrous alloy of the present invention, be made up of following concrete steps:
(1) by iron powder, chromium, molybdenum, nickel, manganese, Cu, Mg, Zn mixing, add in suitable quantity of water, send into ball milling in ball mill, obtain 250-400 order powder, then, spraying dry, oven dry, make bulk at 8-10Mpa pressure, then under nitrogen protection atmosphere 600-650 DEG C carry out sintering 8-10 hour, cross 200-400 mesh sieve by after the crushing material after sintering;
(2) other remaining component is mixed;
(3) step (1), (2) material after mixing and stirring 65-85 minute, are loaded mould, are pressed into base at 55-65 DEG C;
(4) pressed compact is placed in sintering oven, to 650-750 DEG C of condition, sinters 1.5-2 hour with 6-8 DEG C/min of ramp; Then to 1100-1150 DEG C of condition, 2-3 hour is sintered with 5-7 DEG C/min of ramp; Sinter 1-2 hour under being cooled to 350-450 DEG C of condition with 9-12 DEG C/min of speed again, in last air, be cooled to room temperature.
Through detecting, hardness of the present invention: HRC65; Tensile strength: 965MPa.

Claims (2)

1. a powder metallurgical ferrous alloy, it is characterized in that, be made up of the raw material of following weight part: iron powder 82-83, chromium 11.2-11.6, molybdenum 2.2-2.3, nickel 3.0-3.3, silicon 1.2-1.6, manganese 4.4-4.7, Cu1.2-1.5, Mg3.1-3.3, Zn1.3-1.5, Be0.35-0.55, auxiliary agent 2-3;
Described auxiliary agent is made up of the raw material of following weight part: iron powder 30-34, aluminium hydroxide 2-3, zinc sulfate 1-2, medical stone 1-2, nano-sized carbon 1-2, jade 2-3, polyisobutene 2-3, aluminate coupling agent DL-4111-2, carborundum powder 2-3;
The preparation method of described auxiliary agent is by iron powder, aluminium hydroxide, zinc sulfate, medical stone mixing, grind to form 200-300 order powder, then add aluminate coupling agent DL-411 and mix, under 10-15MPa, be pressed into blank, then, calcine 3-4 hour at sending into 920-950 DEG C, after cooling, be ground into 300-400 order powder, mix with other remaining component, be heated to 60-70 DEG C, under 1200-1500 rev/min, stir 1-2 hour, to obtain final product.
2. powder metallurgical ferrous alloy according to claim 1, is characterized in that, be made up of following concrete steps:
(1) by iron powder, chromium, molybdenum, nickel, manganese, Cu, Mg, Zn mixing, add in suitable quantity of water, send into ball milling in ball mill, obtain 250-400 order powder, then, spraying dry, oven dry, make bulk at 8-10MPa pressure, then under nitrogen protection atmosphere 600-650 DEG C carry out sintering 8-10 hour, cross 200-400 mesh sieve by after the crushing material after sintering;
(2) other remaining component is mixed;
(3) step (1), (2) material after mixing and stirring 65-85 minute, are loaded mould, are pressed into base at 55-65 DEG C;
(4) pressed compact is placed in sintering oven, to 650-750 DEG C of condition, sinters 1.5-2 hour with 6-8 DEG C/min of ramp; Then to 1100-1150 DEG C of condition, 2-3 hour is sintered with 5-7 DEG C/min of ramp; Sinter 1-2 hour under being cooled to 350-450 DEG C of condition with 9-12 DEG C/min of speed again, in last air, be cooled to room temperature.
CN201310469258.1A 2013-10-10 2013-10-10 A kind of powder metallurgical ferrous alloy and preparation method thereof Active CN103602922B (en)

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CN104894458A (en) * 2015-06-05 2015-09-09 邢桂生 Preparation method of SiC reinforced iron base composite material for vehicle
CN106148839A (en) * 2016-07-07 2016-11-23 无锡戴尔普机电设备有限公司 A kind of Novel air adjustable valve shaft-cup material
CN108296475A (en) * 2017-09-03 2018-07-20 安徽天裕汽车零部件制造有限公司 A kind of automobile chassis composite material and preparation method that soundproof effect is good
CN109763068A (en) * 2019-01-30 2019-05-17 李国平 A kind of heat resisting ferro alloy which stands and preparation method thereof
CN110699611B (en) * 2019-11-21 2021-05-28 天津铸金科技开发股份有限公司 High-strength anti-pitting alloy powder

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