CN107916379A - A kind of preparation method of powdered metallurgical material for valve - Google Patents
A kind of preparation method of powdered metallurgical material for valve Download PDFInfo
- Publication number
- CN107916379A CN107916379A CN201711236932.6A CN201711236932A CN107916379A CN 107916379 A CN107916379 A CN 107916379A CN 201711236932 A CN201711236932 A CN 201711236932A CN 107916379 A CN107916379 A CN 107916379A
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- parts
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- pressed compact
- insulation
- preparation
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Classifications
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C49/00—Alloys containing metallic or non-metallic fibres or filaments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/10—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C47/00—Making alloys containing metallic or non-metallic fibres or filaments
- C22C47/14—Making alloys containing metallic or non-metallic fibres or filaments by powder metallurgy, i.e. by processing mixtures of metal powder and fibres or filaments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
- B22F2998/10—Processes characterised by the sequence of their steps
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Powder Metallurgy (AREA)
Abstract
The invention discloses a kind of preparation method of the powdered metallurgical material for valve, this method first weighs each component by weight, then above-mentioned constituent is uniformly mixed through homogenizer, is sent into hydraulic press, hot pressing obtains pressed compact；When placement 34 is small after pressed compact is cooled to room temperature, place under the conditions of 450 500 DEG C, when insulation 23 is small, take out；Finally pressed compact is sent into it is hot-forming in stove, be first to heat to 1020~1070 DEG C of insulations 1~3 it is small when, reheating is warming up to 1150~1250 DEG C, when insulation 2~6 is small, cools to less than 70 DEG C with the furnace and comes out of the stove, and takes out and cools down to obtain the final product.The present invention rationally sets proportioning and production technology, the valve material of formation to have preferable comprehensive mechanical property, the stable quality of alloy is homogeneous, has the characteristic of higher fracture toughness, compression strength and bending strength by the material combination of optimization.
Description
Technical field
Present invention relates particularly to a kind of preparation method of the powdered metallurgical material for valve.
Background technology
Valve be in fluid system, for control the direction of fluid, pressure, flow device, be to make pipe arrangement and equipment
Interior medium（Liquid, gas, powder）Flowing stops and can control the device of its flow.Valve material therefor is very much, wherein
Since powder metallurgy limits from melting, alloying component can be both added, other structures component can also be added, and suitable
It is adjusted as requested in big scope, and then the effect with Components Matching can be reached in mechanical property.Powder metallurgy machine
Tool degree is high, can reduce personnel and improve efficiency, and then cost-effective.But there are many problems for powder metallurgy.Example
Such as common iron-base powder metallurgy material is heat-resisting, corrosion resistance is poor, and bearing is poor, the mechanical property such as intensity, hardness, impact resistance
It is not high enough.Metal has the characteristics of thermal shock resistance, good toughness, but metal easily aoxidizes, and elevated temperature strength is not high.Ceramic material
Material has the characteristics that high rigidity, heat-resist, corrosion-resistant.By metal and Ceramic bond, it can obtain that hardness is big, elevated temperature strength
It is high, high temperature creep is good, good thermal shock, the material of many excellent properties such as anti-oxidant, corrosion-resistant, wear-resistant so that valve
It is more suitable for the change of environment, service life is longer.But due to nonmetallic phase and metal phase poor compatibility, easily occur component inclined
Analysis, structural homogenity is poor, and intensity is uneven, piebald occurs, and running-in ability is poor, wears no resistance, it is impossible to bears larger pressure, heat declines
Seriously, anti-crack poor performance, thermal fatigue resistance energy is poor, reduces performance, shortens service life.PM technique
Traditional manufacturing process can be substituted, be that the vast traditional forms of enterprises is cost-effective.So study a kind of powder metallurgy for valve
Formula, adapts to different needs, has great importance.
The content of the invention
It is an object of the invention to provide a kind of preparation method of the powdered metallurgical material for valve.
The purpose of the present invention is what is be achieved through the following technical solutions：A kind of automobile brake sheet low noise powder metallurgy material
The preparation method of material, comprises the following steps：
（1）First 30-40 parts of copper powder, kaolin 10-15 powder, 5-6 parts of molybdenum disulfide, sepiolite fibre 10-20 are weighed by weight
Part, 4-9 parts of high wear-resistant carbon black, 10-14 parts of basic nickel carbonate, 10-14 parts of graphite powder, 3-11 parts of auxiliary agent, polyacrylonitrile fibre 6-
14 parts, it is 6-8 parts of tungsten silicide, three 3-8 part of two tin of oxidation, 10-14 parts of phenolic resin, 4-6 parts of glass fibre, 1-6 parts of hafnium boride, newborn
2-5 parts of glue, 1-3 parts of vanadium carbide；
（2）Above-mentioned constituent is uniformly mixed through homogenizer, is sent into hydraulic press, in 15~30Mpa of pressure, temperature
120~200 DEG C, under the conditions of 5~20 minutes dwell times hot pressing obtain pressed compact；
（3）When placement 3-4 is small after pressed compact is cooled to room temperature, place under the conditions of 450-500 DEG C, when insulation 2-3 is small, take out；
（4）Pressed compact is sent into it is hot-forming in stove, be first to heat to 1020~1070 DEG C insulation 1~3 it is small when, reheating is warming up to
1150~1250 DEG C, when insulation 2~6 is small, cools to less than 70 DEG C with the furnace and come out of the stove, taking-up cools down to obtain the final product.
First 35 parts of copper powder, 13 powder of kaolin, 5.5 parts of molybdenum disulfide, 15 parts of sepiolite fibre, high abrasion are weighed by weight
6 parts of carbon black, 12 parts of basic nickel carbonate, 12 parts of graphite powder, 7 parts of auxiliary agent, 10 parts of polyacrylonitrile fibre, 7 parts of tungsten silicide, three oxidations two
5 parts of tin, 12 parts of phenolic resin, 5 parts of glass fibre, 4 parts of hafnium boride, 3 parts of latex, 2 parts of vanadium carbide.
The auxiliary agent is by microcrystalline wax, polysiloxanes-quaternary ammonium acrylate copolymer, sodium tripolyphosphate, glycerine three
Monoglyceride is according to weight ratio 2-5：1-3：4-8：6-7 compositions.
It is described in pressure 20Mpa, 160 DEG C of temperature, under the conditions of 10 minutes dwell times hot pressing obtain pressed compact.
It is described pressed compact is cooled to room temperature after place 3-4 it is small when, place under the conditions of 480 DEG C, insulation 2.5 it is small when.
Beneficial effect：The present invention rationally sets proportioning and production technology, the valve material of formation by the material combination of optimization
Material has preferable comprehensive mechanical property, and the stable quality of alloy is homogeneous, has higher fracture toughness, compression strength and bending resistance
The characteristic of intensity.
Embodiment
Embodiment 1
A kind of preparation method of powdered metallurgical material for valve, comprises the following steps：
（1）First 30 parts of copper powder, 10 powder of kaolin, 5 parts of molybdenum disulfide, 10 parts of sepiolite fibre, high abrasion charcoal are weighed by weight
Black 4 parts, 10 parts of basic nickel carbonate, 10 parts of graphite powder, 3 parts of auxiliary agent, 6 parts of polyacrylonitrile fibre, 6 parts of tungsten silicide, three oxidation two tin 3
Part, 10 parts of phenolic resin, 4 parts of glass fibre, 1 part of hafnium boride, 2 parts of latex, 1 part of vanadium carbide；The auxiliary agent is by microcrystalline wax, poly-
Silicon-acrylate quaternized copolymer, sodium tripolyphosphate, glycerine glycerinate are according to weight ratio 2：1：4：6 compositions
's.
（2）Above-mentioned constituent is uniformly mixed through homogenizer, is sent into hydraulic press, in pressure 15Mpa, temperature
120 DEG C, under the conditions of 20 minutes dwell times hot pressing obtain pressed compact；
（3）When placement 3-4 is small after pressed compact is cooled to room temperature, place under the conditions of 450 DEG C, when insulation 2 is small, take out；
（4）Pressed compact is sent into it is hot-forming in stove, be first to heat to 1020~1070 DEG C insulation 1~3 it is small when, reheating is warming up to
1150~1250 DEG C, when insulation 2~6 is small, cools to less than 70 DEG C with the furnace and come out of the stove, taking-up cools down to obtain the final product.
The hardness HB of the embodiment material is 64 after tested, consistency 98.48%, fracture toughness 16.2MPam1/
2, compression strength 172MPa, bending strength 578MPa.
Embodiment 2
A kind of preparation method of powdered metallurgical material for valve, comprises the following steps：
（1）First 40 parts of copper powder, 15 powder of kaolin, 6 parts of molybdenum disulfide, 20 parts of sepiolite fibre, high abrasion charcoal are weighed by weight
Black 9 parts, 14 parts of basic nickel carbonate, 14 parts of graphite powder, 11 parts of auxiliary agent, 14 parts of polyacrylonitrile fibre, 8 parts of tungsten silicide, three oxidation two
8 parts of tin, 14 parts of phenolic resin, 6 parts of glass fibre, 6 parts of hafnium boride, 5 parts of latex, 3 parts of vanadium carbide；The auxiliary agent is by microlite
Wax, polysiloxanes-quaternary ammonium acrylate copolymer, sodium tripolyphosphate, glycerine glycerinate are according to weight ratio 5：3：8：7
Composition.
（2）Above-mentioned constituent is uniformly mixed through homogenizer, is sent into hydraulic press, in pressure 30Mpa, temperature
200 DEG C, under the conditions of 5 minutes dwell times hot pressing obtain pressed compact；
（3）When placement 3-4 is small after pressed compact is cooled to room temperature, place under the conditions of 500 DEG C, when insulation 3 is small, take out；
（4）Pressed compact is sent into it is hot-forming in stove, be first to heat to 1020~1070 DEG C insulation 1~3 it is small when, reheating is warming up to
1150~1250 DEG C, when insulation 2~6 is small, cools to less than 70 DEG C with the furnace and come out of the stove, taking-up cools down to obtain the final product.
The hardness HB of the embodiment material is 64 after tested, consistency 98.72%, fracture toughness 16.9MPam1/
2, compression strength 170MPa, bending strength 568MPa.
Embodiment 3
A kind of preparation method of powdered metallurgical material for valve, comprises the following steps：
（1）First 35 parts of copper powder, 13 powder of kaolin, 5.5 parts of molybdenum disulfide, 15 parts of sepiolite fibre, high abrasion are weighed by weight
6 parts of carbon black, 12 parts of basic nickel carbonate, 12 parts of graphite powder, 7 parts of auxiliary agent, 10 parts of polyacrylonitrile fibre, 7 parts of tungsten silicide, three oxidations two
5 parts of tin, 12 parts of phenolic resin, 5 parts of glass fibre, 4 parts of hafnium boride, 3 parts of latex, 2 parts of vanadium carbide；The auxiliary agent is by microlite
Wax, polysiloxanes-quaternary ammonium acrylate copolymer, sodium tripolyphosphate, glycerine glycerinate are according to weight ratio 3.5：2：
6：6.5 compositions.
（2）Above-mentioned constituent is uniformly mixed through homogenizer, is sent into hydraulic press, in pressure 20Mpa, temperature
160 DEG C, under the conditions of 10 minutes dwell times hot pressing obtain pressed compact；
（3）When placement 3-4 is small after pressed compact is cooled to room temperature, place under the conditions of 480 DEG C, when insulation 2.5 is small, take out；
（4）Pressed compact is sent into it is hot-forming in stove, be first to heat to 1020~1070 DEG C insulation 1~3 it is small when, reheating is warming up to
1150~1250 DEG C, when insulation 2~6 is small, cools to less than 70 DEG C with the furnace and come out of the stove, taking-up cools down to obtain the final product.
The hardness HB of the embodiment material is 66 after tested, consistency 98.98%, fracture toughness 17.9MPam1/
2, compression strength 178MPa, bending strength 581MPa.
Claims (5)
1. the preparation method of a kind of powdered metallurgical material for valve, it is characterised in that comprise the following steps：
（1）First 30-40 parts of copper powder, kaolin 10-15 powder, 5-6 parts of molybdenum disulfide, sepiolite fibre 10-20 are weighed by weight
Part, 4-9 parts of high wear-resistant carbon black, 10-14 parts of basic nickel carbonate, 10-14 parts of graphite powder, 3-11 parts of auxiliary agent, polyacrylonitrile fibre 6-
14 parts, it is 6-8 parts of tungsten silicide, three 3-8 part of two tin of oxidation, 10-14 parts of phenolic resin, 4-6 parts of glass fibre, 1-6 parts of hafnium boride, newborn
2-5 parts of glue, 1-3 parts of vanadium carbide；
（2）Above-mentioned constituent is uniformly mixed through homogenizer, is sent into hydraulic press, in 15~30Mpa of pressure, temperature
120~200 DEG C, under the conditions of 5~20 minutes dwell times hot pressing obtain pressed compact；
（3）When placement 3-4 is small after pressed compact is cooled to room temperature, place under the conditions of 450-500 DEG C, when insulation 2-3 is small, take out；
（4）Pressed compact is sent into it is hot-forming in stove, be first to heat to 1020~1070 DEG C insulation 1~3 it is small when, reheating is warming up to
1150~1250 DEG C, when insulation 2~6 is small, cools to less than 70 DEG C with the furnace and come out of the stove, taking-up cools down to obtain the final product.
A kind of 2. preparation method of powdered metallurgical material for valve according to claim 1, it is characterised in that：First
35 parts of copper powder, 13 powder of kaolin, 5.5 parts of molybdenum disulfide, 15 parts of sepiolite fibre, 6 parts of high wear-resistant carbon black, alkali are weighed by weight
12 parts of formula nickelous carbonate, 12 parts of graphite powder, 7 parts of auxiliary agent, 10 parts of polyacrylonitrile fibre, 7 parts of tungsten silicide, three 5 parts of two tin of oxidation, phenolic aldehyde
12 parts of resin, 5 parts of glass fibre, 4 parts of hafnium boride, 3 parts of latex, 2 parts of vanadium carbide.
A kind of 3. preparation method of powdered metallurgical material for valve according to claim 1, it is characterised in that：Institute
State auxiliary agent by microcrystalline wax, polysiloxanes-quaternary ammonium acrylate copolymer, sodium tripolyphosphate, glycerine glycerinate by
According to weight ratio 2-5：1-3：4-8：6-7 compositions.
A kind of 4. preparation method of powdered metallurgical material for valve according to claim 1, it is characterised in that：Institute
State in pressure 20Mpa, 160 DEG C of temperature, under the conditions of 10 minutes dwell times hot pressing obtain pressed compact.
A kind of 5. preparation method of powdered metallurgical material for valve according to claim 1, it is characterised in that：Institute
State after pressed compact is cooled to room temperature place 3-4 it is small when, place under the conditions of 480 DEG C, insulation 2.5 it is small when.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711236932.6A CN107916379A (en) | 2017-11-30 | 2017-11-30 | A kind of preparation method of powdered metallurgical material for valve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711236932.6A CN107916379A (en) | 2017-11-30 | 2017-11-30 | A kind of preparation method of powdered metallurgical material for valve |
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| Publication Number | Publication Date |
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| CN107916379A true CN107916379A (en) | 2018-04-17 |
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| CN201711236932.6A Pending CN107916379A (en) | 2017-11-30 | 2017-11-30 | A kind of preparation method of powdered metallurgical material for valve |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112517903A (en) * | 2020-11-27 | 2021-03-19 | 无锡科宇模具有限公司 | Preparation method of powder metallurgy valve |
| CN112553490A (en) * | 2020-11-29 | 2021-03-26 | 无锡钊厚金属制造有限公司 | Preparation method of high-antifriction bearing |
| CN112643019A (en) * | 2020-11-27 | 2021-04-13 | 无锡科宇模具有限公司 | Preparation method of high-performance titanium alloy part |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107338386A (en) * | 2017-06-16 | 2017-11-10 | 苏州莱特复合材料有限公司 | A kind of preparation method of aluminium lithium alloy material |
| CN107350467A (en) * | 2017-06-16 | 2017-11-17 | 苏州莱特复合材料有限公司 | A kind of preparation method of high temperature resistant powder metallurgy connecting rod |
| CN107363256A (en) * | 2017-06-16 | 2017-11-21 | 苏州莱特复合材料有限公司 | A kind of preparation method of powder metallurgy friction member |
| CN107377979A (en) * | 2017-06-16 | 2017-11-24 | 苏州莱特复合材料有限公司 | A kind of preparation method of anti-corrosion compressor valve plate |
-
2017
- 2017-11-30 CN CN201711236932.6A patent/CN107916379A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107338386A (en) * | 2017-06-16 | 2017-11-10 | 苏州莱特复合材料有限公司 | A kind of preparation method of aluminium lithium alloy material |
| CN107350467A (en) * | 2017-06-16 | 2017-11-17 | 苏州莱特复合材料有限公司 | A kind of preparation method of high temperature resistant powder metallurgy connecting rod |
| CN107363256A (en) * | 2017-06-16 | 2017-11-21 | 苏州莱特复合材料有限公司 | A kind of preparation method of powder metallurgy friction member |
| CN107377979A (en) * | 2017-06-16 | 2017-11-24 | 苏州莱特复合材料有限公司 | A kind of preparation method of anti-corrosion compressor valve plate |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112517903A (en) * | 2020-11-27 | 2021-03-19 | 无锡科宇模具有限公司 | Preparation method of powder metallurgy valve |
| CN112643019A (en) * | 2020-11-27 | 2021-04-13 | 无锡科宇模具有限公司 | Preparation method of high-performance titanium alloy part |
| CN112553490A (en) * | 2020-11-29 | 2021-03-26 | 无锡钊厚金属制造有限公司 | Preparation method of high-antifriction bearing |
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Application publication date: 20180417 |
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