CN103223489B - A kind of preparation method of eccentric wheel powder metallurgy - Google Patents
A kind of preparation method of eccentric wheel powder metallurgy Download PDFInfo
- Publication number
- CN103223489B CN103223489B CN201310120611.5A CN201310120611A CN103223489B CN 103223489 B CN103223489 B CN 103223489B CN 201310120611 A CN201310120611 A CN 201310120611A CN 103223489 B CN103223489 B CN 103223489B
- Authority
- CN
- China
- Prior art keywords
- temperature
- minute
- eccentric wheel
- weight portion
- modified additive
- 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
- 238000004663 powder metallurgy Methods 0.000 title claims abstract description 15
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 230000000996 additive effect Effects 0.000 claims abstract description 19
- 239000000654 additive Substances 0.000 claims abstract description 17
- 239000002994 raw material Substances 0.000 claims abstract description 14
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 8
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229920003023 plastic Polymers 0.000 claims abstract description 8
- 239000004033 plastic Substances 0.000 claims abstract description 8
- 229920002689 polyvinyl acetate Polymers 0.000 claims abstract description 8
- 229940075065 polyvinyl acetate Drugs 0.000 claims abstract description 8
- 239000011118 polyvinyl acetate Substances 0.000 claims abstract description 8
- 238000003825 pressing Methods 0.000 claims abstract description 8
- 239000000843 powder Substances 0.000 claims abstract description 7
- 239000002245 particle Substances 0.000 claims abstract description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 4
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims abstract description 4
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052802 copper Inorganic materials 0.000 claims abstract description 4
- 239000010949 copper Substances 0.000 claims abstract description 4
- 229910052742 iron Inorganic materials 0.000 claims abstract description 4
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 4
- 239000011733 molybdenum Substances 0.000 claims abstract description 4
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 4
- 239000012188 paraffin wax Substances 0.000 claims abstract description 4
- 239000000243 solution Substances 0.000 claims description 13
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 12
- 239000000920 calcium hydroxide Substances 0.000 claims description 12
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 238000003756 stirring Methods 0.000 claims description 11
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 10
- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical compound C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 claims description 7
- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical compound CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 claims description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 6
- 235000021355 Stearic acid Nutrition 0.000 claims description 6
- 239000007864 aqueous solution Substances 0.000 claims description 6
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 6
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 6
- 238000005554 pickling Methods 0.000 claims description 6
- 238000010791 quenching Methods 0.000 claims description 6
- 239000011265 semifinished product Substances 0.000 claims description 6
- 238000005245 sintering Methods 0.000 claims description 6
- 239000008117 stearic acid Substances 0.000 claims description 6
- 239000000725 suspension Substances 0.000 claims description 6
- 238000013019 agitation Methods 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 230000000171 quenching effect Effects 0.000 claims description 3
- 238000005496 tempering Methods 0.000 claims description 3
- 208000037656 Respiratory Sounds Diseases 0.000 abstract description 5
- 238000002156 mixing Methods 0.000 abstract description 4
- 150000001875 compounds Chemical class 0.000 abstract description 2
- 239000000314 lubricant Substances 0.000 abstract description 2
- 239000011148 porous material Substances 0.000 abstract description 2
- 239000000047 product Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 239000012752 auxiliary agent Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 description 1
- 239000008116 calcium stearate Substances 0.000 description 1
- 235000013539 calcium stearate Nutrition 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
Landscapes
- Powder Metallurgy (AREA)
Abstract
The invention discloses the preparation method of a kind of eccentric wheel powder metallurgy, it comprises the following steps: eccentric wheel is made up of the raw material of following weight percentage: the nickel of 0.2-0.4%, the molybdenum of 0.4-0.6%, 0.6-0.8% tin, the aluminium oxide powder of 0.3-0.5%, the graphite powder of 0.8-1%, the paraffin of 0.4-0.6%, the copper of 4-6%, the modified additive of 1-2%, remaining be iron；The present invention is by the modified additive added, superfines is provided in mixing raw material, this superfines can be filled between oarse-grained gap, improve the apparent density of compound, plastic of poly vinyl acetate and atoleine add in modified additive as lubricant, enhance this modified additive effect in mixing compacting, powder metallurgy structural part compact strength is greatly improved under equal pressing pressure, change raw materials particles combining form and pore shape, from root, solve the generation of crackle.
Description
Technical field
The invention mainly relates to the preparation method of a kind of eccentric wheel powder metallurgy, belong to casting field.
Background technology
Along with the economic development of China, powder metallurgy structure purposes is more and more wider.Powder metallurgy, as a kind of near-net-shape technology, has the biggest economic advantages when producing the part that the batches such as structural member are big, dimensional accuracy is high, processing charges are high.But powder metallurgy structural part exists a weakness: product is the lowest at un-sintered front compact strength, cause that crackle easily occur in shaping and handling process, and cannot find out in the fabrication process.This some application on as vehicle key position part be fatal defect, result in powder metallurgy structural part and can be only applied on medium to low-risk stressed member, range is limited by very large.
Powder metallurgy structural part intensity is mainly affected by three aspect factors: one is material composition, and two is product density, and three are whether product crackle occurs in shaping with handling process.Material composition affects manufacturing cost, and product density is very big with mould loss impact on forming bench, and crackle is mainly by pressed compact intensity effect, and is difficult to find out.
Summary of the invention
The object of the invention is contemplated to make up the defect of prior art, it is provided that the preparation method of a kind of eccentric wheel powder metallurgy.
The present invention is achieved by the following technical solutions:
A kind of preparation method of eccentric wheel powder metallurgy, it comprises the following steps:
(1) dispensing: described eccentric wheel is made up of the raw material of following weight percentage:
The nickel of 0.2-0.4%, the molybdenum of 0.4-0.6%, 0.6-0.8% tin, the aluminium oxide powder of 0.3-0.5%, the graphite powder of 0.8-1%, the paraffin of 0.4-0.6%, the copper of 4-6%, the modified additive of 1-2%, remaining be iron；
Described modified additive is made up of the raw material of following weight parts:
Nano zinc oxide powder 90-100, calcium hydroxide 30-40, stearic acid 30-40, cumyl peroxide 6-8, plastic of poly vinyl acetate 8-10, nano-tungsten powder 2-4, AEO 2-3, atoleine 3-4, aminopropyl triethoxysilane 0.8-1, water are appropriate；
The preparation method of described modified additive comprises the following steps:
A, by the water of the quality such as the calcium hydroxide of above-mentioned weight portion joins, agitating heating 20-30 minute at 90-110 DEG C, obtain calcium hydroxide aqueous solution；
B, the stearic acid of above-mentioned weight portion is heated to 60-70 DEG C, add the nano-tungsten powder of above-mentioned weight portion, AEO, rise high-temperature as 80-85 DEG C, constant temperature stirs 1-2 hour, it is slowly added into above-mentioned calcium hydroxide aqueous solution under agitation, continue stirring 1-2 hour after interpolation, obtain mixed liquor；
C, the nano zine oxide powder particles of above-mentioned weight portion is distributed in water, obtains the suspension containing nano zinc oxide powder；
D, the above-mentioned suspension containing nano zinc oxide powder adds the cumyl peroxide of above-mentioned weight portion, plastic of poly vinyl acetate, atoleine stir 40-50 minute under the speed of 500-600 rev/min, add the mixed liquor that the aminopropyl triethoxysilane of above-mentioned weight portion obtains with step B, high speed 1800-2000 rev/min stirs 20-30 minute, dry, grind into superfines, obtain described modified additive.
(2) compacting: put into cold stamping die after being mixed by each raw material of above-mentioned weight portion, suppresses 1-3 minute under the pressure of 800-900MPa, makes blank of colding pressing；
(3) sintering: under conditions of sintering atmosphere is vacuum, reducing atmosphere or inert atmosphere, above-mentioned blank of colding pressing is sintered under the pressure of 1-5MPa, temperature schedule is: first pre-burning 5-10 minute at 300-500 DEG C, then high-temperature is risen with the speed of 5-7 DEG C/minute, when temperature reaches 700-800 DEG C, constant temperature 15-25 minute, high-temperature is risen again with the speed of 3-5 DEG C/minute, when temperature reaches 900-1050 DEG C, constant temperature 1-2 hour, reduce temperature with the speed of 4-6 DEG C/minute the most again to cool down to normal temperature, obtain the semi-finished product of eccentric wheel；
(4) being heat-treated: at 860-880 DEG C, eccentric wheel semi-finished product are incubated 1-3 hour, quench subsequently into oil groove, oil temperature is 45-55 DEG C, sends into tempering furnace and be tempered 1-2 hour after quenching, and temperature 200-250 DEG C is incubated 1-2 hour, is then cooled to room temperature；
(5) phosphatization: pre-phosphatization: Phosphating Solution solution temperature is 90-100 DEG C, pre-phosphating time is 10-15 minute；Pickling: at room temperature with the hydrochloric acid solution pickling that concentration is 10-12% 1-3 minute；Normal temperature is washed 2-3 time；Phosphatization again: Phosphating Solution temperature is 90-100 DEG C, phosphating time is 20-30 minute；Temperature is that the water of 70-80 DEG C cleans 2-3 time；Eccentric wheel described in drying.
The invention have the advantage that
The present invention is by the modified additive added, superfines is provided in mixing raw material, this superfines can be filled between oarse-grained gap, thus improve the apparent density of compound, and this superfines be mainly composed of nano zinc oxide powder and calcium stearate, pass through silane coupler, the new modified auxiliary agent that the auxiliary agents such as cumyl peroxide obtain, every physical characteristics such as the wearability further increasing goods, wherein plastic of poly vinyl acetate and atoleine add in modified additive as lubricant, enhance this modified additive effect in mixing compacting, powder metallurgy structural part compact strength is greatly improved under equal pressing pressure, change raw materials particles combining form and pore shape, the generation of crackle is solved from root.
Detailed description of the invention
Embodiment 1
A kind of preparation method of eccentric wheel powder metallurgy, it comprises the following steps:
(1) dispensing: described eccentric wheel is made up of the raw material of following weight percentage:
The nickel of 0.4%, the molybdenum of 0.6%, 0.8% tin, the aluminium oxide powder of 0.5%, the graphite powder of 0.8%, the paraffin of 0.6%, the copper of 6%, the modified additive of 2%, remaining be iron；
Described modified additive is made up of the raw material of following weight parts:
Nano zinc oxide powder 100, calcium hydroxide 40, stearic acid 40, cumyl peroxide 8, plastic of poly vinyl acetate 10, nano-tungsten powder 4, AEO 3, atoleine 4, aminopropyl triethoxysilane 1, water are appropriate；
The preparation method of described modified additive comprises the following steps:
A, by the water of the quality such as the calcium hydroxide of above-mentioned weight portion joins, agitating heating 30 minutes at 110 DEG C, obtain calcium hydroxide aqueous solution；
B, the stearic acid of above-mentioned weight portion is heated to 70 DEG C, add the nano-tungsten powder of above-mentioned weight portion, AEO, rise high-temperature as 85 DEG C, constant temperature stirs 2 hours, it is slowly added into above-mentioned calcium hydroxide aqueous solution under agitation, continue stirring 1 hour after interpolation, obtain mixed liquor；
C, the nano zine oxide powder particles of above-mentioned weight portion is distributed in water, obtains the suspension containing nano zinc oxide powder；
D, the above-mentioned suspension containing nano zinc oxide powder adds the cumyl peroxide of above-mentioned weight portion, plastic of poly vinyl acetate, atoleine stir 50 minutes under the speed of 600 revs/min, add the mixed liquor that the aminopropyl triethoxysilane of above-mentioned weight portion obtains with step B, 2000 revs/min are stirred 30 minutes at a high speed, dry, grind into superfines, obtain described modified additive.
(2) compacting: put into cold stamping die after being mixed by each raw material of above-mentioned weight portion, suppresses 3 minutes under the pressure of 900MPa, makes blank of colding pressing；
(3) sintering: under conditions of sintering atmosphere is vacuum, reducing atmosphere or inert atmosphere, above-mentioned blank of colding pressing is sintered under the pressure of 5MPa, temperature schedule is: first pre-burning 10 minutes at 500 DEG C, then rises high-temperature, when temperature reaches 800 DEG C with the speed of 7 DEG C/minute, constant temperature 25 minutes, high-temperature, when temperature reaches 1050 DEG C, constant temperature 2 hours is risen again with the speed of 5 DEG C/minute, reduce temperature with the speed of 6 DEG C/minute the most again to cool down to normal temperature, obtain the semi-finished product of eccentric wheel；
(4) being heat-treated: at 880 DEG C, eccentric wheel semi-finished product are incubated 1 hour, quench subsequently into oil groove, oil temperature is 55 DEG C, sends into tempering furnace and be tempered 1 hour after quenching, and temperature 250 DEG C is incubated 2 hours, is then cooled to room temperature；
(5) phosphatization: pre-phosphatization: Phosphating Solution solution temperature is 100 DEG C, pre-phosphating time is 15 minutes；Pickling: at room temperature with the hydrochloric acid solution pickling that concentration is 12% 3 minutes；Normal temperature is washed 3 times；Phosphatization again: Phosphating Solution temperature is 100 DEG C, phosphating time is 30 minutes；Temperature is that the water of 80 DEG C cleans 2-3 time；Eccentric wheel described in drying.
Performance test:
Ultimate tensile strength intensity σ b (MPa): 817
Yield strength σ s (MPa): 507
Percentage elongation δ 5
(%): 160
Contraction percentage of area ψ (%): 39.
Claims (1)
1. the preparation method of an eccentric wheel powder metallurgy, it is characterised in that it comprises the following steps:
(1) dispensing: described eccentric wheel is made up of the raw material of following weight percentage: the nickel of 0.2-0.4%, the molybdenum of 0.4-0.6%, 0.6-0.8% tin, the aluminium oxide powder of 0.3-0.5%, the graphite powder of 0.8-1%, the paraffin of 0.4-0.6%, the copper of 4-6%, the modified additive of 1-2%, remaining be iron；Described modified additive is made up of the raw material of following weight parts: nano zinc oxide powder 90-100, calcium hydroxide 30-40, stearic acid 30-40, cumyl peroxide 6-8, plastic of poly vinyl acetate 8-10, nano-tungsten powder 2-4, AEO 2-3, atoleine 3-4, aminopropyl triethoxysilane 0.8-1, water are appropriate；The preparation method of described modified additive comprises the following steps: A, by the water of the quality such as the calcium hydroxide of above-mentioned weight portion joins, and agitating heating 20-30 minute at 90-110 DEG C obtains calcium hydroxide aqueous solution；B, the stearic acid of above-mentioned weight portion is heated to 60-70 DEG C, add the nano-tungsten powder of above-mentioned weight portion, AEO, rise high-temperature to 80-85 DEG C, constant temperature stirs 1-2 hour, it is slowly added into above-mentioned calcium hydroxide aqueous solution under agitation, continue stirring 1-2 hour after interpolation, obtain mixed liquor；C, the nano zine oxide powder particles of above-mentioned weight portion is distributed in water, obtains the suspension containing nano zinc oxide powder；D, the above-mentioned suspension containing nano zinc oxide powder adds the cumyl peroxide of above-mentioned weight portion, plastic of poly vinyl acetate, atoleine stir 40-50 minute under the speed of 500-600 rev/min, add the mixed liquor that the aminopropyl triethoxysilane of above-mentioned weight portion obtains with step B, high speed 1800-2000 rev/min stirs 20-30 minute, dry, grind into superfines, obtain described modified additive；
(2) compacting: put into cold stamping die after being mixed by each raw material of above-mentioned weight portion, suppresses 1-3 minute under the pressure of 800-900MPa, makes blank of colding pressing；
(3) sintering: under conditions of sintering atmosphere is vacuum, reducing atmosphere or inert atmosphere, above-mentioned blank of colding pressing is sintered under the pressure of 1-5MPa, temperature schedule is: first pre-burning 5-10 minute at 300-500 DEG C, then high-temperature is risen with the speed of 5-7 DEG C/minute, when temperature reaches 700-800 DEG C, constant temperature 15-25 minute, high-temperature is risen again with the speed of 3-5 DEG C/minute, when temperature reaches 900-1050 DEG C, constant temperature 1-2 hour, reduce temperature with the speed of 4-6 DEG C/minute the most again and be cooled to normal temperature, obtain the semi-finished product of eccentric wheel；
(4) being heat-treated: at 860-880 DEG C, eccentric wheel semi-finished product are incubated 1-3 hour, quench subsequently into oil groove, oil temperature is 45-55 DEG C, sends into tempering furnace and be tempered 1-2 hour after quenching, and temperature 200-250 DEG C is incubated 1-2 hour, is then cooled to room temperature；
(5) phosphatization: pre-phosphatization: Phosphating Solution solution temperature is 90-100 DEG C, pre-phosphating time is 10-15 minute；Pickling: at room temperature with the hydrochloric acid solution pickling that concentration is 10-12% 1-3 minute；Normal temperature is washed 2-3 time；Phosphatization again: Phosphating Solution temperature is 90-100 DEG C, phosphating time is 20-30 minute；Temperature is that the water of 70-80 DEG C cleans 2-3 time；Eccentric wheel described in drying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310120611.5A CN103223489B (en) | 2013-04-09 | 2013-04-09 | A kind of preparation method of eccentric wheel powder metallurgy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310120611.5A CN103223489B (en) | 2013-04-09 | 2013-04-09 | A kind of preparation method of eccentric wheel powder metallurgy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103223489A CN103223489A (en) | 2013-07-31 |
| CN103223489B true CN103223489B (en) | 2016-08-24 |
Family
ID=48834261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310120611.5A Active CN103223489B (en) | 2013-04-09 | 2013-04-09 | A kind of preparation method of eccentric wheel powder metallurgy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103223489B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103572162A (en) * | 2013-10-10 | 2014-02-12 | 铜陵国方水暖科技有限责任公司 | Powder-metallurgy slippage pump rotor and preparation method thereof |
| CN103602899A (en) * | 2013-10-10 | 2014-02-26 | 铜陵新创流体科技有限公司 | Powder metallurgy alloy material 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 |
| 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 |
| 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 |
| CN103537676A (en) * | 2013-10-11 | 2014-01-29 | 芜湖市鸿坤汽车零部件有限公司 | Powder metallurgy transmission gear and manufacturing method thereof |
| CN105149590A (en) * | 2015-08-28 | 2015-12-16 | 苏州莱特复合材料有限公司 | Powder metallurgy gear and manufacturing method thereof |
| CN106048172A (en) * | 2016-07-20 | 2016-10-26 | 柳州科尔特锻造机械有限公司 | Microwave sintering technology for alloy steel |
| CN107008909A (en) * | 2017-03-27 | 2017-08-04 | 刘金财 | A kind of preparation method of high-precision powder metallurgical gear |
| CN110788332A (en) * | 2019-11-29 | 2020-02-14 | 济南市博瀚精工机械有限公司 | Powder metallurgy eccentric wheel for atomizer compression pump and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1370645A (en) * | 2000-07-07 | 2002-09-25 | 川崎制铁株式会社 | Iron-base mixed powder for powder metallurgy |
| WO2002075171A1 (en) * | 2001-03-16 | 2002-09-26 | Sundram Fasteners Limited | Conrod and a method of producing the same |
| CN102335746A (en) * | 2011-09-26 | 2012-02-01 | 吕元之 | Powder metallurgy sedan synchronizer gear hub and production method thereof |
| CN102913555A (en) * | 2012-04-17 | 2013-02-06 | 向朝霞 | Powder metallurgical composite oil-containing bearing and manufacturing method thereof |
| CN102965571A (en) * | 2012-10-25 | 2013-03-13 | 安徽蓝博旺机械集团振邺机械有限公司 | Powder metallurgy method for pump body of hydraulic pump |
-
2013
- 2013-04-09 CN CN201310120611.5A patent/CN103223489B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1370645A (en) * | 2000-07-07 | 2002-09-25 | 川崎制铁株式会社 | Iron-base mixed powder for powder metallurgy |
| WO2002075171A1 (en) * | 2001-03-16 | 2002-09-26 | Sundram Fasteners Limited | Conrod and a method of producing the same |
| CN102335746A (en) * | 2011-09-26 | 2012-02-01 | 吕元之 | Powder metallurgy sedan synchronizer gear hub and production method thereof |
| CN102913555A (en) * | 2012-04-17 | 2013-02-06 | 向朝霞 | Powder metallurgical composite oil-containing bearing and manufacturing method thereof |
| CN102965571A (en) * | 2012-10-25 | 2013-03-13 | 安徽蓝博旺机械集团振邺机械有限公司 | Powder metallurgy method for pump body of hydraulic pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103223489A (en) | 2013-07-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103223489B (en) | A kind of preparation method of eccentric wheel powder metallurgy | |
| CN103223487B (en) | A kind of preparation method of automobile connecting bar powder metallurgy | |
| CN103223490B (en) | A kind of preparation method of crankshaft of motorcycle powder metallurgy | |
| CN103252494B (en) | A kind of preparation method of compressor valve plate powder metallurgy | |
| CN103252497B (en) | A kind of preparation method of machine tool slider by powder metallurgy | |
| CN103252498B (en) | A kind of preparation method of valve seat powder metallurgy | |
| CN103252492B (en) | Preparation method for powder metallurgy for automotive brake valve block | |
| CN103252491B (en) | Method for preparing powder metallurgy of engine piston pin | |
| CN103223484B (en) | A kind of P/m Gear Wheel With Special Shape and preparation method thereof | |
| CN103231050B (en) | A kind of Powder metallurgy horizontal gear and preparation method thereof | |
| CN102335746A (en) | Powder metallurgy sedan synchronizer gear hub and production method thereof | |
| CN103223491A (en) | Method for preparing bearing outer ring through powder metallurgy | |
| CN103231060B (en) | A kind of powder metallurgical helical gear and preparation method thereof | |
| CN102773482B (en) | Method for manufacturing butterfly valve rod by powder metallurgy | |
| CN102198508B (en) | Manufacture method for automobile 5DYA limited block | |
| CN103231052A (en) | Powder metallurgy sun gear and preparation method thereof | |
| CN103934454B (en) | A kind of preparation technology of miniature gasoline engine connecting rod blank | |
| CN103233166A (en) | Powder metallurgy sector gear and making method thereof | |
| CN103223485B (en) | A kind of powder metallurgy bevel gear and preparation method thereof | |
| CN103252493B (en) | Production method of sprocket powder metallurgy material | |
| CN102773487A (en) | Powder metallurgy preparation method of check valve clack | |
| CN102773485B (en) | Method for manufacturing check valve core by powder metallurgy | |
| CN102896315B (en) | Method for manufacturing top board of die | |
| CN105385916A (en) | Nanometer chromium carbide-modified Mg-Al-Mn system magnesium alloy material for casting automobile parts and manufacturing method of nanometer chromium carbide-modified Mg-Al-Mn system magnesium alloy material | |
| CN105331865A (en) | Mg-Al-Zn system magnesium alloy material modified by nano-diamonds and used for casting automobile parts and manufacturing method of Mg-Al-Zn system magnesium alloy |
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 | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Li Lin Inventor before: Wu Jianping |
|
| COR | Change of bibliographic data | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20161110 Address after: 528100 substation side of fan Lake industrial area, Leping Town, Sanshui District, Guangdong, Foshan Patentee after: Foshan Sanshui strong Powder Metallurgy Co.,Ltd. Address before: Elu Jin Fan Yang Zhen 241200 Anhui city of Wuhu province Fanchang County No. 230 Building 8 Room 401 Patentee before: Wu Jianping |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 528100 one of B1, zone B, Keyi Industrial Park, Lubao Town, Sanshui District, Foshan City, Guangdong Province Patentee after: Foshan Sanshui Weiqiang Technology Co.,Ltd. Address before: 528100 substation side of fan Lake industrial area, Leping Town, Sanshui District, Guangdong, Foshan Patentee before: Foshan Sanshui strong Powder Metallurgy Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 528100 one of B1, area B, Keyi Industrial Park, Lubao Town, Sanshui District, Foshan City, Guangdong Province Patentee after: Guangdong Weiqiang Technology Co.,Ltd. Address before: 528100 one of B1, area B, Keyi Industrial Park, Lubao Town, Sanshui District, Foshan City, Guangdong Province Patentee before: Foshan Sanshui Weiqiang Technology Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: On the first floor of Building 11, Juyi (Zhaoqing) Real Estate Development Co., Ltd., No. 18 Longhu Avenue, High tech Zone, Zhaoqing City, Guangdong Province, 526000 (multiple photos of one site) Patentee after: Guangdong Weiqiang Technology Co.,Ltd. Country or region after: China Address before: 528100 one of B1, area B, Keyi Industrial Park, Lubao Town, Sanshui District, Foshan City, Guangdong Province Patentee before: Guangdong Weiqiang Technology Co.,Ltd. Country or region before: China |