CN103084575B - Powder metallurgy manufacturing process for valve body of anti-explosion valve - Google Patents
Powder metallurgy manufacturing process for valve body of anti-explosion valve Download PDFInfo
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- CN103084575B CN103084575B CN201210482120.0A CN201210482120A CN103084575B CN 103084575 B CN103084575 B CN 103084575B CN 201210482120 A CN201210482120 A CN 201210482120A CN 103084575 B CN103084575 B CN 103084575B
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Abstract
The invention discloses a powder metallurgy manufacturing process for a valve body of an anti-explosion valve. The method comprises the following steps of: preparing a mixed powder raw material; adding 0.6 percent of component lubricant and 0.4 percent of tree ash into basic raw material power iron powder on the basis of the mass of the basic raw material power iron powder; forming a valve rod blank by pressing and sinter molding; and forming a valve body workpiece by the pressing and sinter molding. A powder metallurgy material and a production process are high in production continuity, high in material utilization rate and applicable to mass production; and cost is reduced.
Description
Technical field
The present invention relates to a kind of preparation method of explosion-proof valve, specifically belong to a kind of valve body of anti-explosion valve powder metallurgy manufacture method.
Background technology
Explosion-proof valve is the control assembly in fluid delivery system, has the functions such as shunting or overflow pressure relief.For the valve of fluid control systems, various valves used from the simplest stop valve to very complicated robot control system(RCS), its kind and specification are quite various.Valve can be used for the flowing controlling all kinds fluids such as air, water, steam, various Korrosionsmedium, mud, oil product, liquid metal and radiating medium.Not only material manufacture craft is poor for current explosion-proof valve, and is suitable for producing in enormous quantities, needs to carry out a small amount of fine grinding to valve body before assembling uses.
Summary of the invention
Technical problem to be solved by this invention is for explosion-proof valve technology present situation, and a kind of valve body of anti-explosion valve powder metallurgy manufacture method that a kind of production efficiency provided is high, manufacturing cost is lower.
The technical solution used in the present invention is as follows:
A kind of valve body of anti-explosion valve powder metallurgy manufacture method, includes following steps:
A, configuration mixed-powder raw material, component lubricant, tree ash is increased in basic material powder iron powder, the addition of each component is in the quality of basic material powder iron powder for radix, and lubricant is 0.6%, tree ash is 0.4%, then obtains valve rod blank through compacting, sinter molding; Valve body workpiece is obtained again through compacting, sinter molding;
B, Quenching Treatment: the valve body of anti-explosion valve of sinter molding is sent in heat-treatment furnace and is heated to 850-890 DEG C, and be incubated 2-3 hour; Then cool with quenching oil;
C, temper: the valve body of anti-explosion valve after quenching is sent in tempering furnace and is heated to 300-400 DEG C, insulation 50-70min;
D, phosphorating treatment, be 180-200 DEG C by workpiece at showing tremendous enthusiasm closure temperature at normal temperatures, employing pH value is the surface conditioner process 1min of 8, after dripping empty 1-2min, adopt bonderite process 15-20min, then after dripping empty 1-2min, adopt clean water 1-2min, after dripping empty 1-2min again, process 0.5-1min with hot water workpiece being placed in 78-100 DEG C.
Described phosphorating treatment, be 190 DEG C by workpiece at showing tremendous enthusiasm closure temperature at normal temperatures, employing pH value is the surface conditioner process 1min of 8, after dripping empty 1.5min, adopt bonderite process 17min, then after dripping empty 1.5min, adopt clean water 1.5min, after dripping empty 1.5min again, process 0.7min with hot water workpiece being placed in 90 DEG C.
Compared with prior art, the invention has the advantages that:
The present invention passes through technique scheme, overall structure is scientific and reasonable, correspondingly reduce energy consumption, decrease material consumption and cost input, machining accuracy improves greatly, compared with prior art stock utilization brings up to more than 90% by present 65%, power consumption reduces about 70%, and recruitment reduces 3/4ths, and a machine tool two people operates the malleable workpiece of split run more than 550, improve work efficiency about 4 times, the good effect highly significant of generation.
Mechanics properties testing data of the present invention are as follows:
Through detecting, Testing index of the present invention is as follows:
Hardness (HRB) 60
Tensile strength (MPa) 320
Compression yield strength (MPa) 350
Cross-breaking strength (MPa) 650
Detailed description of the invention
A kind of valve body of anti-explosion valve powder metallurgy manufacture method, includes following steps:
A, configuration mixed-powder raw material, component lubricant, tree ash is increased in basic material powder iron powder, the addition of each component is in the quality of basic material powder iron powder for radix, and lubricant is 0.6%, tree ash is 0.4%, then obtains valve rod blank through compacting, sinter molding; Valve body workpiece is obtained again through compacting, sinter molding;
B, Quenching Treatment: the valve body of anti-explosion valve of sinter molding is sent in heat-treatment furnace and is heated to 850-890 DEG C, and be incubated 2-3 hour; Then cool with quenching oil;
C, temper: the valve body of anti-explosion valve after quenching is sent in tempering furnace and is heated to 300-400 DEG C, insulation 50-70min;
D, phosphorating treatment, be 190 DEG C by workpiece at showing tremendous enthusiasm closure temperature at normal temperatures, employing pH value is the surface conditioner process 1min of 8, after dripping empty 1.5min, adopt bonderite process 17min, then after dripping empty 1.5min, adopt clean water 1.5min, after dripping empty 1.5min again, process 0.7min with hot water workpiece being placed in 90 DEG C.
Through detecting, Testing index of the present invention is as follows:
Hardness (HRB) 60
Tensile strength (MPa) 320
Compression yield strength (MPa) 350
Cross-breaking strength (MPa) 650.
Claims (2)
1. a valve body of anti-explosion valve powder metallurgy manufacture method, is characterized in that, includes following steps:
A, configuration mixed-powder raw material, in basic material powder iron powder, increase component lubricant, tree ash, the addition of each component is in the quality of basic material powder iron powder for radix, and lubricant is 0.6%, tree ash is 0.4%; Valve body of anti-explosion valve is obtained again through compacting, sinter molding;
C, Quenching Treatment: the valve body of anti-explosion valve of sinter molding is sent in heat-treatment furnace and is heated to 850-890 DEG C, and be incubated 2-3 hour; Then cool with quenching oil;
D, temper: the valve body of anti-explosion valve after quenching is sent in tempering furnace and is heated to 300-400 DEG C, insulation 50-70min;
E, phosphorating treatment, be 180-200 DEG C by valve body of anti-explosion valve at showing tremendous enthusiasm closure temperature at normal temperatures, employing pH value is the surface conditioner process 1min of 8, after dripping empty 1-2min, adopt bonderite process 15-20min, then after dripping empty 1-2min, adopt clean water 1-2min, after dripping empty 1-2min again, process 0.5-1min with hot water valve body of anti-explosion valve being placed in 78-100 DEG C.
2. a kind of valve body of anti-explosion valve powder metallurgy manufacture method according to claim 1, it is characterized in that: described phosphorating treatment, be 190 DEG C by valve body of anti-explosion valve at showing tremendous enthusiasm closure temperature at normal temperatures, employing pH value is the surface conditioner process 1min of 8, after dripping empty 1.5min, adopts bonderite process 17min, again after dripping empty 1.5min, adopt clean water 1.5min, then after dripping empty 1.5min, process 0.7min with hot water valve body of anti-explosion valve being placed in 90 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210482120.0A CN103084575B (en) | 2012-11-25 | 2012-11-25 | Powder metallurgy manufacturing process for valve body of anti-explosion valve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210482120.0A CN103084575B (en) | 2012-11-25 | 2012-11-25 | Powder metallurgy manufacturing process for valve body of anti-explosion valve |
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| CN103084575A CN103084575A (en) | 2013-05-08 |
| CN103084575B true CN103084575B (en) | 2015-04-22 |
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| CN201210482120.0A Active CN103084575B (en) | 2012-11-25 | 2012-11-25 | Powder metallurgy manufacturing process for valve body of anti-explosion valve |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102172775A (en) * | 2005-10-12 | 2011-09-07 | 日立粉末冶金株式会社 | Method of manufacturing sintered valve seat |
| CN102443739A (en) * | 2010-09-30 | 2012-05-09 | 日立粉末冶金株式会社 | Sintered material for valve guides and production methods therefor |
| CN102801364A (en) * | 2011-05-25 | 2012-11-28 | 陈大洪 | Molecular energy catching device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3818025B2 (en) * | 2000-06-26 | 2006-09-06 | Ｊｆｅスチール株式会社 | Method for producing cold-rolled steel sheet with small anisotropy |
| JP4738591B2 (en) * | 2000-12-13 | 2011-08-03 | キャボットスーパーメタル株式会社 | Method for forming a tantalum or niobium film |
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- 2012-11-25 CN CN201210482120.0A patent/CN103084575B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102172775A (en) * | 2005-10-12 | 2011-09-07 | 日立粉末冶金株式会社 | Method of manufacturing sintered valve seat |
| CN102443739A (en) * | 2010-09-30 | 2012-05-09 | 日立粉末冶金株式会社 | Sintered material for valve guides and production methods therefor |
| CN102801364A (en) * | 2011-05-25 | 2012-11-28 | 陈大洪 | Molecular energy catching device |
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| CN103084575A (en) | 2013-05-08 |
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