CN103600062B - A kind of sintered alloy composite and preparation method thereof - Google Patents
A kind of sintered alloy composite and preparation method thereof Download PDFInfo
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- CN103600062B CN103600062B CN201310469319.4A CN201310469319A CN103600062B CN 103600062 B CN103600062 B CN 103600062B CN 201310469319 A CN201310469319 A CN 201310469319A CN 103600062 B CN103600062 B CN 103600062B
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Abstract
The invention discloses a kind of sintered alloy composite, it is characterized in that, be made up of the raw material of following weight portion: graphite 1.1-1.2, chromium 15.1-15.8, nickel 3.1-3.4, copper 1.1-1.3, manganese 5.1-5.6, niobium 0.5-0.8, iron powder 88-91, Ti? 2.5-2.7, Be? 0.2-0.4, In? 0.5-0.75, Th? 0.3-0.5, auxiliary agent 2-3; The present invention adds auxiliary agent, and alloy powder is uniformly dispersed, and ensures the uniformity in length and breadth of interiors of products institutional framework, the fatigue life of product is increased; Bearing capacity of the present invention is strong, the alloy composite materials dense structure of manufacture, and microstructure is good, and the rigidity of structure, hardness, tensile strength properties are excellent.And owing to have employed mold pressing, equipment is simplified, reduces production cost, can be used for the industry parts such as manufacturing machine, automobile, chemical industry.
Description
Technical field
The present invention relates to field of powder metallurgy, particularly a kind of sintered alloy composite and preparation method thereof.
Background technology
Powder metallurgy be produce metal dust or with metal dust (or mixture of metal dust and non-metal powder) as raw material, through shaping and sintering, produce the industrial technology of metal material, composite and all kinds goods.At present, PM technique has been widely used in the fields such as traffic, machinery, electronics, Aero-Space, weapons, biology, new forms of energy, information and nuclear industry, becomes one of branch of most development vitality in new material science.PM technique 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 complex parts also available powders metallurgical technology manufacture, thus enjoy the attention of industrial quarters.Powder metallurgy structural part product material composition does not limit by melting, both can add alloying component, 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.PM technique 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 sintered alloy composite and preparation method thereof.
In order to realize object of the present invention, the present invention is by following scheme implementation:
A kind of sintered alloy composite, is made up of the raw material of following weight portion: graphite 1.1-1.2, chromium 15.1-15.8, nickel 3.1-3.4, copper 1.1-1.3, manganese 5.1-5.6, niobium 0.5-0.8, iron powder 88-91, Ti2.5-2.7, Be0.2-0.4, In0.5-0.75, Th0.3-0.5, auxiliary agent 2-3;
Described auxiliary agent is made up of the raw material of following weight portion: iron powder 30-40, aluminum sulfate 3-4, PTPP 1-2, celestite powder 2-3, stalk ashes 1-2, Silane coupling agent KH550 1-2, dimethicone 3-4, isopropyl distearyl acyloxy Aluminate 1-2, zinc oxide 2-3; Preparation method is by iron powder, aluminum sulfate, PTPP, celestite powder, the mixing of stalk ashes, grind to form 200-300 order powder, then add Silane coupling agent KH550 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 residual components, be heated to 60-70 DEG C, under 1200-1500 rev/min, stir 1-2 hour, to obtain final product.
Sintered alloy composite of the present invention, be made up of following concrete steps:
(1) by chromium, nickel, copper, manganese, niobium, iron powder, Ti, Be, In, Th 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 9-11Mpa pressure, then under nitrogen protection atmosphere 700-750 DEG C carry out sintering 8-10 hour, cross 200-400 mesh sieve by after the crushing material after sintering;
(2) other residual components is added in step (1) material, at 60-65 DEG C after mixing and stirring 75-95 minute, load mould, be pressed into base;
(3) pressed compact is placed in sintering furnace, to 350-450 DEG C of condition, sinters 1-2 hour with 9-12 DEG C/min of ramp, then to 650-750 DEG C of condition, sinter 1.5-2 hour with 6-8 DEG C/min of ramp; Then to 1085-1150 DEG C of condition, 2-3 hour is sintered with 5-7 DEG C/min of ramp; Room temperature is cooled in last air.
The present invention adds auxiliary agent, and alloy powder is uniformly dispersed, and ensures the uniformity in length and breadth of interiors of products institutional framework, the fatigue life of product is increased; Bearing capacity of the present invention is strong, the alloy composite materials dense structure of manufacture, and microstructure is good, and the rigidity of structure, hardness, tensile strength properties are excellent.And owing to have employed mold pressing, equipment is simplified, reduces production cost, can be used for the industry parts such as manufacturing machine, automobile, chemical industry.
Specific embodiments
Below by instantiation, the present invention is described in detail.
A kind of sintered alloy composite, is made up of the raw material of following weight portion (kilogram): graphite 1.1, chromium 15.1, nickel 3.1, copper 1.1, manganese 5.1, niobium 0.5, iron powder 88, Ti2.5, Be0.2, In0.5, Th0.3, auxiliary agent 2;
Described auxiliary agent is made up of the raw material of following weight portion (kilogram): iron powder 30, aluminum sulfate 3, PTPP 1, celestite powder 2, stalk ashes 1, Silane coupling agent KH550 1, dimethicone 3, isopropyl distearyl acyloxy Aluminate 1, zinc oxide 2; Preparation method is by iron powder, aluminum sulfate, PTPP, celestite powder, the mixing of stalk ashes, grind to form 200-300 order powder, then add Silane coupling agent KH550 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 residual components, be heated to 60-70 DEG C, under 1200-1500 rev/min, stir 1-2 hour, to obtain final product.
Sintered alloy composite of the present invention, be made up of following concrete steps:
(1) by chromium, nickel, copper, manganese, niobium, iron powder, Ti, Be, In, Th 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 9-11Mpa pressure, then under nitrogen protection atmosphere 700-750 DEG C carry out sintering 8-10 hour, cross 200-400 mesh sieve by after the crushing material after sintering;
(2) other residual components is added in step (1) material, at 60-65 DEG C after mixing and stirring 75-95 minute, load mould, be pressed into base;
(3) pressed compact is placed in sintering furnace, to 350-450 DEG C of condition, sinters 1-2 hour with 9-12 DEG C/min of ramp, then to 650-750 DEG C of condition, sinter 1.5-2 hour with 6-8 DEG C/min of ramp; Then to 1085-1150 DEG C of condition, 2-3 hour is sintered with 5-7 DEG C/min of ramp; Room temperature is cooled in last air.
Through detecting, hardness of the present invention: HRC54; Tensile strength: 1095MPa.
Claims (2)
1. a sintered alloy composite, it is characterized in that, be made up of the raw material of following weight portion: graphite 1.1-1.2, chromium 15.1-15.8, nickel 3.1-3.4, copper 1.1-1.3, manganese 5.1-5.6, niobium 0.5-0.8, iron powder 88-91, Ti2.5-2.7, Be0.2-0.4, In0.5-0.75, Th0.3-0.5, auxiliary agent 2-3; Described auxiliary agent is made up of the raw material of following weight portion: iron powder 30-40, aluminum sulfate 3-4, PTPP 1-2, celestite powder 2-3, stalk ashes 1-2, Silane coupling agent KH550 1-2, dimethicone 3-4, isopropyl distearyl acyloxy Aluminate 1-2, zinc oxide 2-3; Preparation method is by iron powder, aluminum sulfate, PTPP, celestite powder, the mixing of stalk ashes, grind to form 200-300 order powder, then add Silane coupling agent KH550 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 residual components, be heated to 60-70 DEG C, under 1200-1500 rev/min, stir 1-2 hour, to obtain final product.
2. sintered alloy composite according to claim 1, it is characterized in that, be made up of following concrete steps: (1) is by chromium, nickel, copper, manganese, niobium, iron powder, Ti, Be, In, Th mixing, add in suitable quantity of water, send into ball milling in ball mill, obtain 250-400 order powder, then, spraying dry, oven dry, bulk is made at 9-11MPa pressure, then under nitrogen protection atmosphere 700-750 DEG C carry out sintering 8-10 hour, cross 200-400 mesh sieve by after the crushing material after sintering; (2) other residual components is added in step (1) material, at 60-65 DEG C after mixing and stirring 75-95 minute, load mould, be pressed into base; (3) pressed compact is placed in sintering furnace, to 350-450 DEG C of condition, sinters 1-2 hour with 9-12 DEG C/min of ramp, then to 650-750 DEG C of condition, sinter 1.5-2 hour with 6-8 DEG C/min of ramp; Then to 1085-1150 DEG C of condition, 2-3 hour is sintered with 5-7 DEG C/min of ramp; Room temperature is cooled in last air.
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| CN201310469319.4A CN103600062B (en) | 2013-10-10 | 2013-10-10 | A kind of sintered alloy composite and preparation method thereof |
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| CN201310469319.4A CN103600062B (en) | 2013-10-10 | 2013-10-10 | A kind of sintered alloy composite and preparation method thereof |
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| CN103600062A CN103600062A (en) | 2014-02-26 |
| CN103600062B true CN103600062B (en) | 2016-01-13 |
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| CN104120361B (en) * | 2014-06-26 | 2016-07-27 | 芜湖市鸿坤汽车零部件有限公司 | A kind of composite powder metallurgy material and preparation method thereof |
| CN106167873A (en) * | 2016-07-27 | 2016-11-30 | 江苏和信石油机械有限公司 | A kind of high intensity creep into drilling rod steel |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1382825A (en) * | 2001-04-11 | 2002-12-04 | 博哈里尔特种钢有限公司 | Tool steel alloy for preparing powder metallurgy parts |
| CN1541280A (en) * | 2001-06-08 | 2004-10-27 | �����Զ�����ʽ���� | Sintered alloy, method for prodn. thereof and valve sheet |
| CN101243199A (en) * | 2005-08-18 | 2008-08-13 | 伊拉斯蒂尔·克罗斯特公司 | Powder metallugically manufactured steel, a tool comprising the steel and a method for manufacturing the tool |
| KR101245069B1 (en) * | 2002-06-27 | 2013-03-18 | 이턴 코포레이션 | A powder metal engine composition |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20090162241A1 (en) * | 2007-12-19 | 2009-06-25 | Parker Hannifin Corporation | Formable sintered alloy with dispersed hard phase |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1382825A (en) * | 2001-04-11 | 2002-12-04 | 博哈里尔特种钢有限公司 | Tool steel alloy for preparing powder metallurgy parts |
| CN1541280A (en) * | 2001-06-08 | 2004-10-27 | �����Զ�����ʽ���� | Sintered alloy, method for prodn. thereof and valve sheet |
| KR101245069B1 (en) * | 2002-06-27 | 2013-03-18 | 이턴 코포레이션 | A powder metal engine composition |
| CN101243199A (en) * | 2005-08-18 | 2008-08-13 | 伊拉斯蒂尔·克罗斯特公司 | Powder metallugically manufactured steel, a tool comprising the steel and a method for manufacturing the tool |
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