CN103028730B - Powder metallurgy preparation method of valve clack of membrane valve - Google Patents
Powder metallurgy preparation method of valve clack of membrane valve Download PDFInfo
- Publication number
- CN103028730B CN103028730B CN201210412213.6A CN201210412213A CN103028730B CN 103028730 B CN103028730 B CN 103028730B CN 201210412213 A CN201210412213 A CN 201210412213A CN 103028730 B CN103028730 B CN 103028730B
- Authority
- CN
- China
- Prior art keywords
- powder
- treatment
- valve block
- percent
- 2min
- 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.)
- Expired - Fee Related
Links
- 238000004663 powder metallurgy Methods 0.000 title claims abstract description 11
- 238000002360 preparation method Methods 0.000 title abstract description 6
- 239000012528 membrane Substances 0.000 title 1
- 239000000843 powder Substances 0.000 claims abstract description 31
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 23
- 238000000034 method Methods 0.000 claims abstract description 17
- 229910052742 iron Inorganic materials 0.000 claims abstract description 13
- 239000004952 Polyamide Substances 0.000 claims abstract description 8
- 229920002647 polyamide Polymers 0.000 claims abstract description 8
- 239000011528 polyamide (building material) Substances 0.000 claims abstract description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 4
- 239000010439 graphite Substances 0.000 claims abstract description 4
- 239000012535 impurity Substances 0.000 claims abstract description 4
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 4
- 238000010438 heat treatment Methods 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 10
- 238000009413 insulation Methods 0.000 claims description 9
- 238000010791 quenching Methods 0.000 claims description 9
- 230000000171 quenching Effects 0.000 claims description 9
- 235000019628 coolness Nutrition 0.000 claims description 6
- 238000000465 moulding Methods 0.000 claims description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 150000002505 iron Chemical class 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 238000005496 tempering Methods 0.000 claims description 3
- 238000009692 water atomization Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 239000000463 material Substances 0.000 abstract description 5
- 239000011812 mixed powder Substances 0.000 abstract 3
- 229910052802 copper Inorganic materials 0.000 abstract 1
- 239000004615 ingredient Substances 0.000 abstract 1
- 229910052750 molybdenum Inorganic materials 0.000 abstract 1
- 229910052759 nickel Inorganic materials 0.000 abstract 1
- 238000003825 pressing Methods 0.000 abstract 1
- 238000005245 sintering Methods 0.000 abstract 1
- 229910000997 High-speed steel Inorganic materials 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- REDXJYDRNCIFBQ-UHFFFAOYSA-N aluminium(3+) Chemical class [Al+3] REDXJYDRNCIFBQ-UHFFFAOYSA-N 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000001737 promoting Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
Abstract
The invention discloses a powder metallurgy preparation method of a valve block of a multitandem valve. The preparation method comprises the following steps that iron-based mixed powder is prepared so that the iron-based mixed powder comprises the following ingredients in percentage by mass: 0.5 to 1.2 percent of Mo, 0.1 to 0.25 percent of Mn as prealloy and the balance of iron and impurities, in addition, 0.6 to 4.2 percent of Al powder, 0.6 to 1.2 percent of Cu powder, 0.5 to 1.5 percent of Ni powder, 0.5 to 1.2 percent of graphite powder and 0.21 to 4.9 percent of polyamide wax flake powder are added into the iron-based mixed powder, the average grain diameter of the long diameter of the polyamide wax flake powder is less than 200mum, the thickness is less than 30mum, and valve plate workpieces are obtained through pressing and sintering. The powder metallurgy preparation method has the advantages that the manufacture process has higher production continuity, in addition, the material utilization rate is high, the preparation method is suitable for mass production, and the cost is reduced.
Description
Technical field
The present invention relates to a kind of preparation method of diaphragm valve, specifically belong to a kind of method for preparing powder metallurgy of banked direction control valves valve block.
Background technology
The work valve block of banked direction control valves configures in groups, and (logic element, when banked direction control valves shut-down operation, and each valve is all when meta, and this valve is then to compensate pressure (6-12BAR) bypass working connection flow for the built-in three-way pressure compensating vent relief valve of inlet valve block.When a certain valve work, this valve by-pass port under load pressure effect reduces, and provides required flow according to load pressure.At present, prepare banked direction control valves industry, domestic banked direction control valves valve block all adopts common high-speed steel material, or stainless steel material is by machined banked direction control valves valve block.Compared with powder metallurgy banked direction control valves valve block, the banked direction control valves valve block process velocity that common high-speed steel material or the machined of stainless steel material manufacture is slower, stock utilization is not high, and powder metallurgical technique manufactures stop valve, not only stock utilization is high, and be suitable for producing in enormous quantities, need to carry out a small amount of fine grinding to powder metallurgy valve block before assembling uses.
At present, the process velocity of banked direction control valves is comparatively slow, and stock utilization is not high, and manufacturing cost is high.
Summary of the invention
Technical problem to be solved by this invention is for diaphragm valve technology present situation, and the method for preparing powder metallurgy of a kind of banked direction control valves valve block 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 method for preparing powder metallurgy for banked direction control valves valve block, includes following steps:
A, configuration iron base powder mixture end, it is made to contain the composition of following mass percent, containing Mo:0.5 ~ 1.2% and Mn:0.5 ~ 0.25% as prealloy, surplus is iron and impurity, and in this iron base powder mixture end, add Al powder, the Cu powder of 0.6 ~ 1.2%, the Ni powder of 0.5 ~ 1.5% of 0.6 ~ 4.2%, the graphite powder of 0.5 ~ 1.2% and the polyamide wax flakelike powder of 0.21 ~ 4.9%, the average grain diameter of the major diameter of this polyamide wax flakelike powder is less than 200 μm, and thickness is less than 30 μm; Valve block workpiece is obtained again through compacting, sinter molding;
B, sinter molding is obtained the process of valve block workpiece water atomizing steam, the processing time is 3-4 hour, and temperature is 550-650 DEG C;
D, heat treatment: first carry out normalized treatment, be incubated 1-2 hours by the valve block after steam treatment at 865-875 DEG C, carries out Quenching Treatment again after taking-up: send in heat-treatment furnace and be heated to 840-880 DEG C, and be incubated 2-3 hour; Then, with quenching oil cooling, finally temper is carried out: sent in tempering furnace by the part after quenching and be heated to 350-450 DEG C, insulation 50-70min; Again with heating rate to 550 ~ 650 of 55-65 DEG C/h DEG C insulation 0.5-1.5h, then with the heating rate of 100-120 DEG C/h to 630-670 DEG C of insulation 2-4h, cool to less than 350 DEG C air coolings of coming out of the stove with the furnace to room temperature;
E, phosphorating treatment, at 100-150 DEG C, pH value is adopted to be that the surface conditioner of 8 is to banked direction control valves valve block process 1min, after dripping empty 1-2min, adopt bonderite process 15-20min again, 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.
After phosphorating treatment, finally carry out subzero treatment: part after phosphorating treatment is loaded container, and add liquid nitrogen and carry out subzero treatment, the time is 11 hours, finally obtains banked direction control valves valve block finished product.
Compared with prior art, the invention has the advantages that:
Composition of raw materials of the present invention is reasonable, and technique is simple, and alloy has high temperature hardness and the high temperature compression strength of improvement, and be applicable to being applied to the valve that high temperature occasion is made, the long service life of valve, qualification rate is high, substantially increases the quality of product, is applicable to extensively promoting.
Detailed description of the invention
A method for preparing powder metallurgy for banked direction control valves valve block, includes following steps:
A, configuration iron base powder mixture end, it is made to contain the composition of following mass percent, containing Mo:0.5 ~ 1.2% and Mn:0.1 ~ 0.25% as prealloy, surplus is iron and impurity, and in this iron base powder mixture end, add Al powder, the Cu powder of 0.6 ~ 1.2%, the Ni powder of 0.5 ~ 1.5% of 0.6 ~ 4.2%, the graphite powder of 0.5 ~ 1.2% and the polyamide wax flakelike powder of 0.21 ~ 4.9%, the average grain diameter of the major diameter of this polyamide wax flakelike powder is less than 200 μm, and thickness is less than 30 μm; Valve block workpiece is obtained again through compacting, sinter molding;
B, sinter molding is obtained the process of valve block workpiece water atomizing steam, the processing time is 3-4 hour, and temperature is 550-650 DEG C;
D, heat treatment: first carry out normalized treatment, be incubated 1-2 hours by the valve block after steam treatment at 865-875 DEG C, carries out Quenching Treatment again after taking-up: send in heat-treatment furnace and be heated to 840-880 DEG C, and be incubated 2-3 hour; Then, with quenching oil cooling, finally temper is carried out: sent in tempering furnace by the part after quenching and be heated to 350-450 DEG C, insulation 50-70min; Again with heating rate to 550 ~ 650 of 55-65 DEG C/h DEG C insulation 0.5-1.5h, then with the heating rate of 100-120 DEG C/h to 630-670 DEG C of insulation 2-4h, cool to less than 350 DEG C air coolings of coming out of the stove with the furnace to room temperature;
E, phosphorating treatment, at 100-150 DEG C, pH value is adopted to be that the surface conditioner of 8 is to banked direction control valves valve block process 1min, after dripping empty 1-2min, adopt bonderite process 15-20min again, 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.
F, after phosphorating treatment, finally carry out subzero treatment: part after phosphorating treatment is loaded container, and add liquid nitrogen and carry out subzero treatment, the time is 11 hours, finally obtains banked direction control valves valve block finished product.
Mechanics detection perform of the present invention is as follows:
Tensile strength sigma b (MPa): >=680
Yield strength σ s (MPa): >=610
Percentage elongation δ 5 (%): >=12.6
Contraction percentage of area ψ (%): >=45.2.
Claims (1)
1. a method for preparing powder metallurgy for banked direction control valves valve block, is characterized in that including following steps:
A, configuration iron base powder mixture end, it is made to contain the composition of following mass percent, containing Mo:0.5 ~ 1.2% and Mn:0.5 ~ 0.25% as prealloy, surplus is iron and impurity, and in this iron base powder mixture end, add Al powder, the Cu powder of 0.6 ~ 1.2%, the Ni powder of 0.5 ~ 1.5% of 0.6 ~ 4.2%, the graphite powder of 0.5 ~ 1.2% and the polyamide wax flakelike powder of 0.21 ~ 4.9%, the average grain diameter of the major diameter of this polyamide wax flakelike powder is less than 200 μm, and thickness is less than 30 μm; Valve block workpiece is obtained again through compacting, sinter molding;
B, sinter molding is obtained the process of valve block workpiece water atomizing steam, the processing time is 3-4 hour, and temperature is 550-650 DEG C;
D, heat treatment: first carry out normalized treatment, be incubated 1-2 hour by the valve block after steam treatment at 865-875 DEG C, carries out Quenching Treatment again after taking-up: send in heat-treatment furnace and be heated to 840-880 DEG C, and be incubated 2-3 hour; Then, with quenching oil cooling, finally temper is carried out: sent in tempering furnace by the part after quenching and be heated to 350-450 DEG C, insulation 50-70min; Again with heating rate to 550 ~ 650 of 55-65 DEG C/h DEG C insulation 0.5-1.5h, then with the heating rate of 100-120 DEG C/h to 630-670 DEG C of insulation 2-4h, cool to less than 350 DEG C air coolings of coming out of the stove with the furnace to room temperature;
E, phosphorating treatment, at 100-150 DEG C, pH value is adopted to be that the surface conditioner of 8 is to banked direction control valves valve block process 1min, after dripping empty 1-2min, adopt bonderite process 15-20min again, 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;
After phosphorating treatment, finally carry out subzero treatment: part after phosphorating treatment is loaded container, and add liquid nitrogen and carry out subzero treatment, the time is 11 hours, finally obtains banked direction control valves valve block finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210412213.6A CN103028730B (en) | 2012-10-25 | 2012-10-25 | Powder metallurgy preparation method of valve clack of membrane valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210412213.6A CN103028730B (en) | 2012-10-25 | 2012-10-25 | Powder metallurgy preparation method of valve clack of membrane valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103028730A CN103028730A (en) | 2013-04-10 |
| CN103028730B true CN103028730B (en) | 2015-07-15 |
Family
ID=48016412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210412213.6A Expired - Fee Related CN103028730B (en) | 2012-10-25 | 2012-10-25 | Powder metallurgy preparation method of valve clack of membrane valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103028730B (en) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103600073B (en) * | 2013-10-10 | 2016-05-04 | 铜陵新创流体科技有限公司 | A kind of powder metallurgy chain wheel and preparation method thereof |
| CN103600075B (en) * | 2013-10-10 | 2016-06-29 | 铜陵新创流体科技有限公司 | A kind of no-co ferrous Alloy And Preparation Method of powder metallurgy |
| CN103600076B (en) * | 2013-10-10 | 2016-05-04 | 铜陵新创流体科技有限公司 | A kind of powder metallurgy automobile power steering pump stator and preparation method thereof |
| CN103600074B (en) * | 2013-10-10 | 2016-05-04 | 铜陵新创流体科技有限公司 | A kind of powder metallurgy antifriction alloy and preparation method thereof |
| CN103600081B (en) * | 2013-10-10 | 2016-05-04 | 铜陵新创流体科技有限公司 | A kind of powder-metallurgy refrigeration compressor valve sheet and preparation method thereof |
| CN104028765B (en) * | 2014-06-27 | 2016-01-20 | 张家港振江粉末冶金制品有限公司 | A kind of production method of the metallic sintered products with installation through hole |
| CN104550921A (en) * | 2014-12-25 | 2015-04-29 | 铜陵市经纬流体科技有限公司 | Iron-based powder metallurgy valve material and preparation method thereof |
| CN105983702A (en) * | 2016-01-19 | 2016-10-05 | 安徽蓝博旺机械集团精密液压件有限责任公司 | Powder forging method for forklift engine connecting rod |
| CN105983692A (en) * | 2016-01-19 | 2016-10-05 | 安徽蓝博旺机械集团振邺机械有限公司 | Powder forging method for forklift water pump shell |
| CN105983693A (en) * | 2016-01-19 | 2016-10-05 | 安徽蓝博旺机械集团精密液压件有限责任公司 | Powder forging method for extending and retracting sleeve of forklift transmission shaft |
| CN105983699A (en) * | 2016-01-19 | 2016-10-05 | 安徽蓝博旺机械集团液压流体机械有限责任公司 | Powder forging method for forklift shock absorber piston rod |
| CN105983691A (en) * | 2016-01-19 | 2016-10-05 | 安徽蓝博旺机械集团振邺机械有限公司 | Powder forging method for forklift synchronizer gear ring |
| CN107866572A (en) * | 2017-10-13 | 2018-04-03 | 苏州艾维科斯园林设备有限公司 | A kind of preparation technology of novel high-efficiency and energy-saving engine engine |
| CN109454238A (en) * | 2018-11-08 | 2019-03-12 | 江苏精研科技股份有限公司 | A method of engine oil pressure control valve valve pocket is prepared by injection moulding |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101386074A (en) * | 2007-09-14 | 2009-03-18 | 葛莲 | Manufacture method of powder metallurgy thin wall long pole |
| CN101474674A (en) * | 2009-01-16 | 2009-07-08 | 扬州保来得科技实业有限公司 | Powder metallurgy production method of internal helical gear |
| JP2010077515A (en) * | 2008-09-29 | 2010-04-08 | Hitachi Powdered Metals Co Ltd | Method for producing sintered valve guide |
| CN102107282A (en) * | 2011-01-11 | 2011-06-29 | 山东金聚粉末冶金有限公司 | Automobile oil way joint and manufacturing method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102666895B (en) * | 2009-10-26 | 2015-01-07 | 霍加纳斯股份有限公司 | Iron based powder composition |
-
2012
- 2012-10-25 CN CN201210412213.6A patent/CN103028730B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101386074A (en) * | 2007-09-14 | 2009-03-18 | 葛莲 | Manufacture method of powder metallurgy thin wall long pole |
| JP2010077515A (en) * | 2008-09-29 | 2010-04-08 | Hitachi Powdered Metals Co Ltd | Method for producing sintered valve guide |
| CN101474674A (en) * | 2009-01-16 | 2009-07-08 | 扬州保来得科技实业有限公司 | Powder metallurgy production method of internal helical gear |
| CN102107282A (en) * | 2011-01-11 | 2011-06-29 | 山东金聚粉末冶金有限公司 | Automobile oil way joint and manufacturing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103028730A (en) | 2013-04-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103028730B (en) | Powder metallurgy preparation method of valve clack of membrane valve | |
| CN103667873B (en) | P/m high speed steel and preparation method thereof | |
| CN104070160A (en) | Powder metallurgy duplicate gear and preparation method for same | |
| CN101120894B (en) | Technology method relating to component in manufacturing artificial limb knee-joint | |
| CN102773482B (en) | Method for manufacturing butterfly valve rod by powder metallurgy | |
| CN103008665B (en) | Preparation technology for plug valve clack | |
| CN103014507A (en) | Powder metallurgy flange and preparation method thereof | |
| CN102773483B (en) | Method for manufacturing valve seat of stop valve by powder metallurgy | |
| CN102994882A (en) | Preparation method of powder metallurgy flange | |
| CN102994907A (en) | Casting method of check valve body | |
| CN102965576A (en) | Preparation method of pump shaft of oil feed pump | |
| CN103357862A (en) | Powder metallurgy gear and preparation method thereof | |
| CN102049523A (en) | Free-cutting water-atomized steel powder and preparation method thereof | |
| CN102965571B (en) | Powder metallurgy method for pump body of hydraulic pump | |
| CN102941346B (en) | Preparation method of powder metallurgy forming of multi-way valve body | |
| CN102979938B (en) | Casting method of valve body of check valve | |
| CN103008664B (en) | Preparation method for valve clack of butterfly valve | |
| CN107043885A (en) | A kind of manufacture method of immediate action valve valve element | |
| CN103357865A (en) | Enhanced titanium-doped powder metallurgy material and preparation method thereof | |
| CN102994881A (en) | Powder metallurgy flange | |
| CN112371753B (en) | Processing technology of hydrogen high-pressure large-caliber thick-wall nickel alloy pipe fitting | |
| CN102990066B (en) | Powder metallurgy forming and preparation method of valve rod of diaphragm valve | |
| CN103084567B (en) | Method for preparing valve plate of diaphragm valve through powder metallurgy | |
| CN102672165A (en) | Powder metallurgy process | |
| CN101349293B (en) | Hydraulic motor valve disc and preparation method thereof |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150715 Termination date: 20201025 |