CN105132830A - Powder metallurgy material for brake and preparation method for powder metallurgy material - Google Patents
Powder metallurgy material for brake and preparation method for powder metallurgy material Download PDFInfo
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- CN105132830A CN105132830A CN201510571012.4A CN201510571012A CN105132830A CN 105132830 A CN105132830 A CN 105132830A CN 201510571012 A CN201510571012 A CN 201510571012A CN 105132830 A CN105132830 A CN 105132830A
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Abstract
The invention belongs to the field of composite metal materials and discloses a powder metallurgy material for a brake and a preparation method for the powder metallurgy material. The powder metallurgy material comprises the following components in percentage by weight: 0.2wt%-0.8wt% of Tc, 0.05wt%-0.1wt% of Yb, 0.02wt%-0.06wt% of Dy, 0.1wt%-0.5wt% of Nb, 0.2wt%-0.6wt% of Rh, 0.2wt%-0.5wt% of Te, 0.2wt%-0.7wt% of Ga, 0.1wt%-0.4wt% of Cs, 0.2wt%-0.6wt% of Si and the balance of Fe. The preparation method comprises the following steps: (1) uniformly mixing the components in a high-speed mixer; (2) pressurizing and forming the metal materials in the step (1) in a cold-pressing mould; and (3) heating, sintering and cooling the metal materials, thereby preparing the powder metallurgy material for the brake.
Description
Technical field
The invention belongs to metallurgical material field, relate to a kind of stopper mmaterial and preparation method thereof.
Background technology
Brake facing, clutch friction plate, porosity strainer, porous transpiring material, oil bearing, magnetic core, electrical contact, high-density alloy, Wimet and superhard wear part etc. on aircraft and engine are because of containing a large amount of Non-metallic components or containing open pore, all can not with common casting, forging process manufacture, can only be with powder raw material through colding pressing, the powder metallurgical technique such as sintering manufactures.Powder metallurgy friction material is also known as sintered friction material.Be made up of matrix metal (copper, iron or other alloys), lubricant component (lead, graphite, molybdenumdisulphide etc.), friction component (silicon-dioxide, asbestos etc.) 3 part.Its frictional coefficient is high, can absorb kinetic energy very soon, brakes, transmission speed is fast, it is little to wear and tear; Intensity is high, high temperature resistant, and thermal conductivity is good; Seizure resistance is good, corrosion-resistant, little by grease, moisture effect.Mainly for the manufacture of clutch coupling and stopper.The mmaterial of stopper needs to have higher ultimate compression strength and tensile strength.
Summary of the invention
The technical problem solved: the ultimate compression strength of conventional stopper mmaterial is lower, when for stopper, excessive pressure can cause distortion or the other problems of mmaterial, therefore, the object of the invention is the ultimate compression strength and the tensile strength that improve stopper mmaterial.
Technical scheme: in order to solve the problem, the invention discloses a kind of stopper mmaterial and preparation method thereof, and described stopper mmaterial comprises the composition of following weight parts:
Tc0.2wt%-0.8wt%、
Yb0.05wt%-0.1wt%、
Dy0.02wt%-0.06wt%、
Nb0.1wt%-0.5wt%、
Rh0.2wt%-0.6wt%、
Te0.2wt%-0.5wt%、
Ga0.2wt%-0.7wt%、
Cs0.1wt%-0.4wt%、
Si0.2wt%-0.6wt%、
Surplus is Fe.
Preferably, described a kind of stopper mmaterial, comprises the composition of following weight parts:
Tc0.3wt%-0.6wt%、
Yb0.07wt%-0.09wt%、
Dy0.03wt%-0.05wt%、
Nb0.2wt%-0.4wt%、
Rh0.3wt%-0.5wt%、
Te0.3wt%-0.4wt%、
Ga0.3wt%-0.6wt%、
Cs0.2wt%-0.3wt%、
Si0.3wt%-0.5wt%、
Surplus is Fe.
The preparation method of described a kind of stopper mmaterial, comprises the following steps:
(1) be 0.2wt%-0.8wt%, Yb by Tc be respectively by weight percentage 0.05wt%-0.1wt%, Dy be 0.02wt%-0.06wt%, Nb be 0.1wt%-0.5wt%, Rh be 0.2wt%-0.6wt%, Te be 0.2wt%-0.5wt%, Ga be 0.2wt%-0.7wt%, Cs be 0.1wt%-0.4wt%, Si be 0.2wt%-0.6wt%, surplus is Fe, mixed in high-speed mixer by above-mentioned composition, high-speed mixer rotating speed is 100r/min-200r/min;
(2) high-speed mixing evenly after, by the metallic substance extrusion forming in cold stamping die again of step (1), the compressive load per unit area of cold stamping die is 580-640kgf/cm
2, cold stamping die duration of colding pressing is 2-5h;
(3) again by the metallic substance heat-agglomerating of coldmoulding after colding pressing, in high temperature sintering furnace, raising its temperature is 520-580 DEG C, be incubated 2-4h at such a temperature, raising high temperature sintering furnace temperature is again 1020-1060 DEG C, be incubated 1-3h at such a temperature, after cooling, prepare stopper mmaterial.
Preferably, the preparation method of described a kind of stopper mmaterial, described preparation method's step (1) high speed mixing machine rotating speed is 150r/min.
Preferably, the preparation method of described a kind of stopper mmaterial, in described preparation method's step (2), the compressive load per unit area of cold stamping die is 610kgf/cm
2.
Preferably, the preparation method of described a kind of stopper mmaterial, cold stamping die duration of colding pressing is 4h in described preparation method's step (2).
Preferably, the preparation method of described a kind of stopper mmaterial, first raising its temperature in described preparation method's step (3) is 560 DEG C, is incubated 3h at such a temperature, then to raise high temperature sintering furnace temperature be 1040 DEG C, is incubated 2h at such a temperature.
Beneficial effect: the ultimate compression strength and the tensile strength that improve stopper mmaterial have very large meaning for the work-ing life extending stopper, ultimate compression strength and the tensile strength of stopper mmaterial of the present invention are all higher, its ultimate compression strength is more than 450MPa, and its tensile strength is more than 480MPa.
Embodiment
Embodiment 1
(1) be 0.8wt%, Yb by Tc be respectively by weight percentage 0.1wt%, Dy be 0.02wt%, Nb be 0.1wt%, Rh be 0.6wt%, Te be 0.2wt%, Ga be 0.7wt%, Cs be 0.4wt%, Si be 0.2wt%, surplus is Fe, mixed in high-speed mixer by above-mentioned composition, high-speed mixer rotating speed is 200r/min;
(2) high-speed mixing evenly after, by the metallic substance extrusion forming in cold stamping die again of step (1), the compressive load per unit area of cold stamping die is 640kgf/cm
2, cold stamping die duration of colding pressing is 2h;
(3) again by the metallic substance heat-agglomerating of coldmoulding after colding pressing, in high temperature sintering furnace, raising its temperature is 580 DEG C, be incubated 4h at such a temperature, then to raise high temperature sintering furnace temperature be 1060 DEG C, be incubated 1h at such a temperature, after cooling, prepare stopper mmaterial.
The ultimate compression strength of the mmaterial of embodiment 1 is 457MPa, and tensile strength is 485MPa.
Embodiment 2
(1) be 0.2wt%, Yb by Tc be respectively by weight percentage 0.05wt%, Dy be 0.06wt%, Nb be 0.5wt%, Rh be 0.2wt%, Te be 0.5wt%, Ga be 0.2wt%, Cs be 0.1wt%, Si be 0.6wt%, surplus is Fe, mixed in high-speed mixer by above-mentioned composition, high-speed mixer rotating speed is 100r/min;
(2) high-speed mixing evenly after, by the metallic substance extrusion forming in cold stamping die again of step (1), the compressive load per unit area of cold stamping die is 580kgf/cm
2, cold stamping die duration of colding pressing is 5h;
(3) again by the metallic substance heat-agglomerating of coldmoulding after colding pressing, in high temperature sintering furnace, raising its temperature is 520 DEG C, be incubated 2h at such a temperature, then to raise high temperature sintering furnace temperature be 1020 DEG C, be incubated 3h at such a temperature, after cooling, prepare stopper mmaterial.
The ultimate compression strength of the mmaterial of embodiment 2 is 452MPa, and tensile strength is 482MPa.
Embodiment 3
(1) be 0.6wt%, Yb by Tc be respectively by weight percentage 0.09wt%, Dy be 0.03wt%, Nb be 0.4wt%, Rh be 0.5wt%, Te be 0.4wt%, Ga be 0.3wt%, Cs be 0.3wt%, Si be 0.3wt%, surplus is Fe, mixed in high-speed mixer by above-mentioned composition, high-speed mixer rotating speed is 200r/min;
(2) high-speed mixing evenly after, by the metallic substance extrusion forming in cold stamping die again of step (1), the compressive load per unit area of cold stamping die is 640kgf/cm
2, cold stamping die duration of colding pressing is 2h;
(3) again by the metallic substance heat-agglomerating of coldmoulding after colding pressing, in high temperature sintering furnace, raising its temperature is 580 DEG C, be incubated 4h at such a temperature, then to raise high temperature sintering furnace temperature be 1060 DEG C, be incubated 1h at such a temperature, after cooling, prepare stopper mmaterial.
The ultimate compression strength of the mmaterial of embodiment 3 is 459MPa, and tensile strength is 492MPa.
Embodiment 4
(1) be 0.3wt%, Yb by Tc be respectively by weight percentage 0.07wt%, Dy be 0.05wt%, Nb be 0.2wt%, Rh be 0.3wt%, Te be 0.3wt%, Ga be 0.6wt%, Cs be 0.2wt%, Si be 0.5wt%, surplus is Fe, mixed in high-speed mixer by above-mentioned composition, high-speed mixer rotating speed is 100r/min;
(2) high-speed mixing evenly after, by the metallic substance extrusion forming in cold stamping die again of step (1), the compressive load per unit area of cold stamping die is 580kgf/cm
2, cold stamping die duration of colding pressing is 5h;
(3) again by the metallic substance heat-agglomerating of coldmoulding after colding pressing, in high temperature sintering furnace, raising its temperature is 520 DEG C, be incubated 2h at such a temperature, then to raise high temperature sintering furnace temperature be 1020 DEG C, be incubated 3h at such a temperature, after cooling, prepare stopper mmaterial.
The ultimate compression strength of the mmaterial of embodiment 4 is 462MPa, and tensile strength is 490MPa.
Embodiment 5
(1) be 0.5wt%, Yb by Tc be respectively by weight percentage 0.08wt%, Dy be 0.04wt%, Nb be 0.3wt%, Rh be 0.4wt%, Te be 0.3wt%, Ga be 0.5wt%, Cs be 0.2wt%, Si be 0.4wt%, surplus is Fe, mixed in high-speed mixer by above-mentioned composition, high-speed mixer rotating speed is 150r/min;
(2) high-speed mixing evenly after, by the metallic substance extrusion forming in cold stamping die again of step (1), the compressive load per unit area of cold stamping die is 610kgf/cm
2, cold stamping die duration of colding pressing is 4h;
(3) again by the metallic substance heat-agglomerating of coldmoulding after colding pressing, in high temperature sintering furnace, raising its temperature is 560 DEG C, be incubated 3h at such a temperature, then to raise high temperature sintering furnace temperature be 1040 DEG C, be incubated 2h at such a temperature, after cooling, prepare stopper mmaterial.
The ultimate compression strength of the mmaterial of embodiment 5 is 469MPa, and tensile strength is 498MPa.
Comparative example 1
(1) be 0.8wt%, Nb by Tc be respectively by weight percentage 0.1wt%, Rh be 0.6wt%, Te be 0.2wt%, Ga be 0.7wt%, Cs be 0.4wt%, Si be 0.2wt%, surplus is Fe, mixed in high-speed mixer by above-mentioned composition, high-speed mixer rotating speed is 200r/min;
(2) high-speed mixing evenly after, by the metallic substance extrusion forming in cold stamping die again of step (1), the compressive load per unit area of cold stamping die is 640kgf/cm
2, cold stamping die duration of colding pressing is 2h;
(3) again by the metallic substance heat-agglomerating of coldmoulding after colding pressing, in high temperature sintering furnace, raising its temperature is 580 DEG C, be incubated 4h at such a temperature, then to raise high temperature sintering furnace temperature be 1060 DEG C, be incubated 1h at such a temperature, after cooling, prepare stopper mmaterial.
The ultimate compression strength of the mmaterial of comparative example 1 is 419MPa, and tensile strength is 458MPa.
Comparative example 2
(1) be 0.8wt%, Yb by Tc be respectively by weight percentage 0.1wt%, Dy be 0.02wt%, Nb be 0.1wt%, Rh be 0.6wt%, Cs be 0.4wt%, Si be 0.2wt%, surplus is Fe, mixed in high-speed mixer by above-mentioned composition, high-speed mixer rotating speed is 200r/min;
(2) high-speed mixing evenly after, by the metallic substance extrusion forming in cold stamping die again of step (1), the compressive load per unit area of cold stamping die is 640kgf/cm
2, cold stamping die duration of colding pressing is 2h;
(3) again by the metallic substance heat-agglomerating of coldmoulding after colding pressing, in high temperature sintering furnace, raising its temperature is 580 DEG C, be incubated 4h at such a temperature, then to raise high temperature sintering furnace temperature be 1060 DEG C, be incubated 1h at such a temperature, after cooling, prepare stopper mmaterial.
The ultimate compression strength of the mmaterial of comparative example 2 is 426MPa, and tensile strength is 464MPa.
Claims (7)
1. a stopper mmaterial, is characterized in that, described stopper mmaterial comprises the composition of following weight parts:
Tc0.2wt%-0.8wt%、
Yb0.05wt%-0.1wt%、
Dy0.02wt%-0.06wt%、
Nb0.1wt%-0.5wt%、
Rh0.2wt%-0.6wt%、
Te0.2wt%-0.5wt%、
Ga0.2wt%-0.7wt%、
Cs0.1wt%-0.4wt%、
Si0.2wt%-0.6wt%、
Surplus is Fe.
2. a kind of stopper mmaterial according to claim 1, is characterized in that, described stopper mmaterial comprises the composition of following weight parts:
Tc0.3wt%-0.6wt%、
Yb0.07wt%-0.09wt%、
Dy0.03wt%-0.05wt%、
Nb0.2wt%-0.4wt%、
Rh0.3wt%-0.5wt%、
Te0.3wt%-0.4wt%、
Ga0.3wt%-0.6wt%、
Cs0.2wt%-0.3wt%、
Si0.3wt%-0.5wt%、
Surplus is Fe.
3. the preparation method of a kind of stopper mmaterial according to claim 1, it is characterized in that, described preparation method comprises the following steps:
(1) be 0.2wt%-0.8wt%, Yb by Tc be respectively by weight percentage 0.05wt%-0.1wt%, Dy be 0.02wt%-0.06wt%, Nb be 0.1wt%-0.5wt%, Rh be 0.2wt%-0.6wt%, Te be 0.2wt%-0.5wt%, Ga be 0.2wt%-0.7wt%, Cs be 0.1wt%-0.4wt%, Si be 0.2wt%-0.6wt%, surplus is Fe, mixed in high-speed mixer by above-mentioned composition, high-speed mixer rotating speed is 100r/min-200r/min;
(2) high-speed mixing evenly after, by the metallic substance extrusion forming in cold stamping die again of step (1), the compressive load per unit area of cold stamping die is 580-640kgf/cm
2, cold stamping die duration of colding pressing is 2-5h;
(3) again by the metallic substance heat-agglomerating of coldmoulding after colding pressing, in high temperature sintering furnace, raising its temperature is 520-580 DEG C, be incubated 2-4h at such a temperature, raising high temperature sintering furnace temperature is again 1020-1060 DEG C, be incubated 1-3h at such a temperature, after cooling, prepare stopper mmaterial.
4. the preparation method of a kind of stopper mmaterial according to claim 3, is characterized in that, described preparation method's step (1) high speed mixing machine rotating speed is 150r/min.
5. the preparation method of a kind of stopper mmaterial according to claim 3, is characterized in that, in described preparation method's step (2), the compressive load per unit area of cold stamping die is 610kgf/cm
2.
6. the preparation method of a kind of stopper mmaterial according to claim 3, is characterized in that, cold stamping die duration of colding pressing is 4h in described preparation method's step (2).
7. the preparation method of a kind of stopper mmaterial according to claim 3, it is characterized in that, first raising its temperature in described preparation method's step (3) is 560 DEG C, is incubated 3h at such a temperature, raising high temperature sintering furnace temperature is again 1040 DEG C, is incubated 2h at such a temperature.
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| CN201510571012.4A CN105132830A (en) | 2015-09-10 | 2015-09-10 | Powder metallurgy material for brake and preparation method for powder metallurgy material |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107812934A (en) * | 2017-10-20 | 2018-03-20 | 广西银英生物质能源科技开发股份有限公司 | A kind of brake powdered metallurgical material and preparation method thereof |
| CN108941570A (en) * | 2018-07-18 | 2018-12-07 | 桐城市明丽碳化硼制品有限公司 | A kind of elasticity powdered metallurgical material and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101704102A (en) * | 2009-11-30 | 2010-05-12 | 长春工业大学 | High-performance powder metallurgy material and preparation method thereof |
| JP2014005543A (en) * | 2013-08-20 | 2014-01-16 | Jfe Steel Corp | Iron-based powder mixture |
| JP2014080683A (en) * | 2012-09-27 | 2014-05-08 | Jfe Steel Corp | Iron-based mixed powder for powder metallurgy |
| CN104651755A (en) * | 2015-03-09 | 2015-05-27 | 苏州圣谱拉新材料科技有限公司 | Preparation method of iron-based powder metallurgy material |
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- 2015-09-10 CN CN201510571012.4A patent/CN105132830A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101704102A (en) * | 2009-11-30 | 2010-05-12 | 长春工业大学 | High-performance powder metallurgy material and preparation method thereof |
| JP2014080683A (en) * | 2012-09-27 | 2014-05-08 | Jfe Steel Corp | Iron-based mixed powder for powder metallurgy |
| JP2014005543A (en) * | 2013-08-20 | 2014-01-16 | Jfe Steel Corp | Iron-based powder mixture |
| CN104651755A (en) * | 2015-03-09 | 2015-05-27 | 苏州圣谱拉新材料科技有限公司 | Preparation method of iron-based powder metallurgy material |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107812934A (en) * | 2017-10-20 | 2018-03-20 | 广西银英生物质能源科技开发股份有限公司 | A kind of brake powdered metallurgical material and preparation method thereof |
| CN108941570A (en) * | 2018-07-18 | 2018-12-07 | 桐城市明丽碳化硼制品有限公司 | A kind of elasticity powdered metallurgical material and preparation method thereof |
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Application publication date: 20151209 |