CN102773482B - Method for manufacturing butterfly valve rod by powder metallurgy - Google Patents
Method for manufacturing butterfly valve rod by powder metallurgy Download PDFInfo
- Publication number
- CN102773482B CN102773482B CN201210221637.4A CN201210221637A CN102773482B CN 102773482 B CN102773482 B CN 102773482B CN 201210221637 A CN201210221637 A CN 201210221637A CN 102773482 B CN102773482 B CN 102773482B
- Authority
- CN
- China
- Prior art keywords
- powder
- powders
- valve rod
- butterfly valve
- sintering
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Abstract
The invention discloses a method for manufacturing a butterfly valve rod by powder metallurgy. The method includes steps of a, preparing a mixed material: using atomized iron powders as base materials, and mixing the atomized iron powders with other components of, by weight, 4%-6% of scrap iron powders, 3.5%-4.0% of nickel powders, 4%-6% of tool steel powders, 1.2%-1.3% of manganese sulfide powders, 0.5%-0.7% of molybdenum disulfide powders, 1.7%-1.9% of aluminum powders, 0.2%-0.4% of tungsten powders, 0.02%-0.03% of niobium powders, 1.1%-1.4% of graphite, 1.0%-1.5% of polyamide wax micro powders and 1.2%-1.8% of stearic acid; and b, performing pressing molding: feeding the evenly mixed powder metallurgy material to a press machine, and performing the pressing molding by means of a mold to form the butterfly valve rod. The method for manufacturing the butterfly valve rod by the powder metallurgy is high in production continuity, high in material utilization, suitable for volume-producing and capable of reducing costs, and the performance of the butterfly valve rod can meet requirements of normal use.
Description
Technical field
The present invention relates to a kind of preparation method of butterfly valve valve rod, specifically belong to the method for a kind of powder metallurgy butterfly valve valve rod processed.
Background technology
At present, prepare butterfly valve industry, domestic butterfly valve valve rod all adopts common high-speed steel material, or stainless steel material is by machined butterfly valve valve rod.Process velocity is slower, and stock utilization is not high, and powder metallurgical technique is manufactured stop valve, and not only stock utilization is high, and is suitable for producing in enormous quantities, before assembling is used, needs a small amount of fine grinding of powder metallurgy valve rod.
Summary of the invention
Technical problem to be solved by this invention is for butterfly valve valve rod technology present situation, and the method for a kind of powder metallurgy butterfly valve valve rod processed that a kind of production efficiency providing is high, manufacturing cost is lower.
The technical solution used in the present invention is as follows:
A method for powder metallurgy butterfly valve valve rod processed, is characterized in that including following steps:
A, mixing material: take atomized iron powder as matrix, the weight percentage of all the other components is: scrap iron powder 4-6, nickel powder 3.5-4.0, tool steel powder 4-6, sulfuration manganese powder 1.2-1.3, molybdenum disulphide powder 0.5-0.7, aluminium powder 1.7-1.9, tungsten powder 0.2-0.4, niobium powder 0.02-0.03, graphite 1.1-1.4, polyamide wax micropowder 1.0-1.5, stearic acid 1.2-1.8;
B, compressing: uniform compounding powdered metallurgical material is delivered on forcing press once compressing with mould, be just configured as butterfly valve valve rod;
C, sintering: compressing part is sent into powder metallurgy sintering furnace and ooze copper sintering, sintering temperature is 1100-1160 ℃, and sintering time is 1-1.5 hour;
D, Quenching Treatment: part is sent into and in heat-treatment furnace, is heated to 850-890 ℃, and be incubated 3.5-4.5 hour; Then, cooling with quenching liquid;
E, temper: the part after quenching is sent in tempering furnace and is heated to 300-400 ℃, be incubated 50-70min;
F, subzero treatment: pack part after tempering into container, add liquid nitrogen to carry out subzero treatment, the time is 11-12 hour.
The method of described powder metallurgy butterfly valve valve rod processed, is characterized in that:
In step c, compressing part to be sent into powder metallurgy sintering furnace and ooze copper sintering, sintering temperature is 1140 ℃, sintering time is 1.3 hours.
Compared with prior art, the invention has the advantages that:
Compared with manufacturing butterfly valve valve rod with existing high-speed steel material or the machined of stainless steel material, this powdered metallurgical material and manufacturing process have higher continuous production, and stock utilization is high, are suitable for producing in enormous quantities, reduce costs, performance can meet the normal needs that use.
The specific embodiment
A method for powder metallurgy butterfly valve valve rod processed, includes following steps:
A, mixing material: take atomized iron powder as matrix, the weight percentage of all the other components is: scrap iron powder 4, nickel powder 3.5, tool steel powder 4, sulfuration manganese powder 1.2, molybdenum disulphide powder 0.5, aluminium powder 1.7, tungsten powder 0.2, niobium powder 0.02, graphite 1.1, polyamide wax micropowder 1.0, stearic acid 1.2;
B, compressing: uniform compounding powdered metallurgical material is delivered on forcing press once compressing with mould, be just configured as butterfly valve valve rod;
C, sintering: compressing part is sent into powder metallurgy sintering furnace and ooze copper sintering, sintering temperature is 1140 ℃, and sintering time is 1.3 hours;
D, Quenching Treatment: part is sent into and in heat-treatment furnace, is heated to 850-890 ℃, and be incubated 3.5-4.5 hour; Then, cooling with quenching liquid;
E, temper: the part after quenching is sent in tempering furnace and is heated to 300-400 ℃, be incubated 50-70min;
F, subzero treatment: pack part after tempering into container, add liquid nitrogen to carry out subzero treatment, the time is 11-12 hour.Machining finished product recently.
After tested, the hardness of valve rod is more than HRB90.
Claims (2)
1. a method for powder metallurgy butterfly valve valve rod processed, is characterized in that including following steps:
A, mixing material: take atomized iron powder as matrix, the weight percentage of all the other components is: scrap iron powder 4-6, nickel powder 3.5-4.0, tool steel powder 4-6, sulfuration manganese powder 1.2-1.3, molybdenum disulphide powder 0.5-0.7, aluminium powder 1.7-1.9, tungsten powder 0.2-0.4, niobium powder 0.02-0.03, graphite 1.1-1.4, polyamide wax micropowder 1.0-1.5, stearic acid 1.2-1.8;
B, compressing: uniform compounding powdered metallurgical material is delivered on forcing press once compressing with mould, be just configured as butterfly valve valve rod;
C, sintering: compressing part is sent into powder metallurgy sintering furnace and ooze copper sintering, sintering temperature is 1100-1160 ℃, and sintering time is 1-1.5 hour;
D, Quenching Treatment: part is sent into and in heat-treatment furnace, is heated to 850-890 ℃, and be incubated 3.5-4.5 hour; Then, cooling with quenching liquid;
E, temper: the part after quenching is sent in tempering furnace and is heated to 300-400 ℃, be incubated 50-70min;
F, subzero treatment: pack part after tempering into container, add liquid nitrogen to carry out subzero treatment, the time is 11-12 hour.
2. the method for powder metallurgy according to claim 1 butterfly valve valve rod processed, is characterized in that:
In step c, compressing part to be sent into powder metallurgy sintering furnace and ooze copper sintering, sintering temperature is 1140 ℃, sintering time is 1.3 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210221637.4A CN102773482B (en) | 2012-06-30 | 2012-06-30 | Method for manufacturing butterfly valve rod by powder metallurgy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210221637.4A CN102773482B (en) | 2012-06-30 | 2012-06-30 | Method for manufacturing butterfly valve rod by powder metallurgy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102773482A CN102773482A (en) | 2012-11-14 |
| CN102773482B true CN102773482B (en) | 2014-05-21 |
Family
ID=47118714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210221637.4A Active CN102773482B (en) | 2012-06-30 | 2012-06-30 | Method for manufacturing butterfly valve rod by powder metallurgy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102773482B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102990066B (en) * | 2012-11-25 | 2015-03-04 | 安徽普源分离机械制造有限公司 | Powder metallurgy forming and preparation method of valve rod of diaphragm valve |
| CN103008642B (en) * | 2012-11-25 | 2015-12-09 | 安徽普源分离机械制造有限公司 | The valve rod powder metallurgy manufacture method of check-valves |
| CN104550927A (en) * | 2014-12-25 | 2015-04-29 | 铜陵市经纬流体科技有限公司 | Iron-base powder metallurgy material containing electric fused mullite powder for valve and preparation method of iron-base powder metallurgy material |
| CN104565487A (en) * | 2014-12-31 | 2015-04-29 | 铜陵市经纬流体科技有限公司 | Pearlite flexible sealing gate valve for delivering hot water and preparation method thereof |
| CN108145147A (en) * | 2017-12-26 | 2018-06-12 | 洛阳神佳窑业有限公司 | High-strength powder metallurgy material |
| CN108160984A (en) * | 2017-12-27 | 2018-06-15 | 洛阳神佳窑业有限公司 | A kind of powdered metallurgical material |
| CN108679136B (en) * | 2018-05-18 | 2020-01-31 | 宁波市奇强精密冲件有限公司 | Spring holder of shock absorber |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4588441A (en) * | 1983-02-08 | 1986-05-13 | Yutaka Ikenoue | Process for the preparation of sintered alloys for valve mechanism parts for internal combustion engines |
| CN1438350A (en) * | 1998-11-19 | 2003-08-27 | 易通公司 | Power-matallurgy valve seat inserts |
| CN102092417A (en) * | 2010-12-06 | 2011-06-15 | 十堰合骏实业有限公司 | Integrated valve bush and powder metallurgy process method thereof |
| CN102172775A (en) * | 2005-10-12 | 2011-09-07 | 日立粉末冶金株式会社 | Method of manufacturing sintered valve seat |
-
2012
- 2012-06-30 CN CN201210221637.4A patent/CN102773482B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4588441A (en) * | 1983-02-08 | 1986-05-13 | Yutaka Ikenoue | Process for the preparation of sintered alloys for valve mechanism parts for internal combustion engines |
| CN1438350A (en) * | 1998-11-19 | 2003-08-27 | 易通公司 | Power-matallurgy valve seat inserts |
| CN102172775A (en) * | 2005-10-12 | 2011-09-07 | 日立粉末冶金株式会社 | Method of manufacturing sintered valve seat |
| CN102092417A (en) * | 2010-12-06 | 2011-06-15 | 十堰合骏实业有限公司 | Integrated valve bush and powder metallurgy process method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102773482A (en) | 2012-11-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102773482B (en) | Method for manufacturing butterfly valve rod by powder metallurgy | |
| CN104070160B (en) | A kind of powder metallurgy duplicate gear and preparation method thereof | |
| CN103409687B (en) | A kind of powder metallurgy support and preparation method thereof | |
| CN102773483B (en) | Method for manufacturing valve seat of stop valve by powder metallurgy | |
| CN101905411B (en) | Method for manufacturing coupler for distributor of automobile engine | |
| CN103223484A (en) | Powder metallurgy special-shaped gear and preparation method thereof | |
| CN103231050A (en) | Powder metallurgy horizontal gear and preparation method thereof | |
| CN103223486A (en) | Powder metallurgy duplicate gear and preparation method thereof | |
| CN103231060B (en) | A kind of powder metallurgical helical gear and preparation method thereof | |
| CN102978517B (en) | Preparation method of cold working die steel | |
| CN103231062B (en) | Powder metallurgy planetary gear and preparation method thereof | |
| CN103231061A (en) | Powder metallurgy synchronous wheel and preparation method thereof | |
| CN105200322A (en) | High-strength automobile part powder metallurgy component and preparation method thereof | |
| CN103231052A (en) | Powder metallurgy sun gear and preparation method thereof | |
| CN102773484B (en) | Method for manufacturing ball-shaped check valve body by powder metallurgy | |
| CN102672180A (en) | Powdery metallurgical finished product process | |
| CN103233166A (en) | Powder metallurgy sector gear and making method thereof | |
| CN102773487B (en) | Powder metallurgy preparation method of check valve clack | |
| CN102198508B (en) | Manufacture method for automobile 5DYA limited block | |
| CN102773485B (en) | Method for manufacturing check valve core by powder metallurgy | |
| CN103537674A (en) | Powder metallurgy spring steel material and manufacturing method thereof | |
| CN102909373A (en) | Method for preparing mould punching ejector rod | |
| CN103938017A (en) | Copper-based powder metallurgy tool steel and manufacturing method thereof | |
| CN103406534A (en) | Powder metallurgy flange and manufacturing method thereof | |
| CN101508020A (en) | Metal powder material for metal powder injection molding and molding technique |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |