CN103252491B - Method for preparing powder metallurgy of engine piston pin - Google Patents
Method for preparing powder metallurgy of engine piston pin Download PDFInfo
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- CN103252491B CN103252491B CN201310120303.2A CN201310120303A CN103252491B CN 103252491 B CN103252491 B CN 103252491B CN 201310120303 A CN201310120303 A CN 201310120303A CN 103252491 B CN103252491 B CN 103252491B
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- 238000004663 powder metallurgy Methods 0.000 title claims abstract description 14
- 238000000034 method Methods 0.000 title abstract description 6
- 239000000654 additive Substances 0.000 claims abstract description 23
- 230000000996 additive effect Effects 0.000 claims abstract description 23
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000002994 raw material Substances 0.000 claims abstract description 14
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 10
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000000843 powder Substances 0.000 claims abstract description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052802 copper Inorganic materials 0.000 claims abstract description 7
- 239000010949 copper Substances 0.000 claims abstract description 7
- 229910052742 iron Inorganic materials 0.000 claims abstract description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 4
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052793 cadmium Inorganic materials 0.000 claims abstract description 4
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 4
- 239000011777 magnesium Substances 0.000 claims abstract description 4
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 4
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 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
- 239000011265 semifinished product Substances 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 238000007493 shaping process Methods 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 claims description 9
- 238000002360 preparation method Methods 0.000 claims description 9
- 238000003756 stirring Methods 0.000 claims description 9
- 238000005496 tempering Methods 0.000 claims description 9
- 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
- 241001125879 Gobio Species 0.000 claims description 7
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 7
- 229920003023 plastic Polymers 0.000 claims description 7
- 239000004033 plastic Substances 0.000 claims description 7
- 229920002689 polyvinyl acetate Polymers 0.000 claims description 7
- 229940075065 polyvinyl acetate Drugs 0.000 claims description 7
- 239000011118 polyvinyl acetate Substances 0.000 claims description 7
- 238000003825 pressing Methods 0.000 claims description 7
- 229910000077 silane Inorganic materials 0.000 claims description 7
- 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
- 229910052923 celestite Inorganic materials 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
- 239000003921 oil Substances 0.000 claims description 6
- 238000005554 pickling Methods 0.000 claims description 6
- 238000005245 sintering Methods 0.000 claims description 6
- 239000008117 stearic acid Substances 0.000 claims description 6
- UBXAKNTVXQMEAG-UHFFFAOYSA-L strontium sulfate Chemical compound [Sr+2].[O-]S([O-])(=O)=O UBXAKNTVXQMEAG-UHFFFAOYSA-L 0.000 claims description 6
- 239000000725 suspension Substances 0.000 claims description 6
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 6
- 229920002554 vinyl polymer Polymers 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 4
- 239000005543 nano-size silicon particle Substances 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 4
- 238000013019 agitation Methods 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 238000010791 quenching Methods 0.000 claims description 3
- 230000000171 quenching effect Effects 0.000 claims description 3
- 235000012239 silicon dioxide Nutrition 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 abstract description 2
- 239000008116 calcium stearate Substances 0.000 abstract description 2
- 235000013539 calcium stearate Nutrition 0.000 abstract description 2
- 239000000314 lubricant Substances 0.000 abstract description 2
- 230000006835 compression Effects 0.000 abstract 2
- 238000007906 compression Methods 0.000 abstract 2
- 239000008187 granular material Substances 0.000 abstract 2
- 239000006087 Silane Coupling Agent Substances 0.000 abstract 1
- 238000005299 abrasion Methods 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 238000005056 compaction Methods 0.000 abstract 1
- 229940057995 liquid paraffin Drugs 0.000 abstract 1
- 239000002075 main ingredient Substances 0.000 abstract 1
- 238000005272 metallurgy Methods 0.000 abstract 1
- 230000000704 physical effect Effects 0.000 abstract 1
- -1 polyethylene vinyl acetate Polymers 0.000 abstract 1
- 208000037656 Respiratory Sounds Diseases 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 238000004519 manufacturing process 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
- 239000000203 mixture Substances 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Landscapes
- Powder Metallurgy (AREA)
Abstract
The invention discloses a method for preparing powder metallurgy of an engine piston pin. The method includes: the engine piston pin is made of following raw materials, by weight, 0.4-0.6% of nickel, 0.4-0.6% of magnesium, 0.6-0.8% of graphite powder, 0.4-0.6% of cadmium, 0.3-0.4% of zinc stearate, 1-2% of performance additive, 4-6% of copper, and the balance iron; via adding the performance additive, superfine powder is provided in the mixed raw materials and can fill in seams among large granules, so that density of the mixed materials is improved; main ingredients of the superfine powder include nano-silica and calcium stearate, the novel performance additive is obtained via agent like silane coupling agent, and physical properties like abrasion performance of prepared products is further improved; and polyethylene vinyl acetate and liquid paraffin serving as lubricating agent are added in the performance additive, so that effect of the performance additive under mixed compression is strengthened, the strength of compaction of power metallurgy structural members is greatly improved under same compression force, combining shape and hole shape of the raw material granules is changed, and problem about generation of crack is solved basically.
Description
Technical field
The present invention relates generally to a kind of preparation method of powder metallurgy of engine piston pin, belongs 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 very large economic advantages when parts that batch is large, dimensional accuracy is high, processing charges are high such as production structure parts.But there is a weakness in powder metallurgy structural part: product not sinter front compact strength very low, cause shaping with handling process in easily there is crackle, and cannot to find out in the fabrication process.This is if vehicle key position part is fatal defect in some application, and result in powder metallurgy structural part and can only be applied on medium to low-risk stressed member, the scope of application is limited by very large.
Powder metallurgy structural part intensity mainly affects by three aspect factors: one is material composition, and two is product densities, three are products shaping with handling process in whether there is crackle.Material composition affects manufacturing cost, and product density affects very large on forming bench and mould loss, 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 exactly the defect in order to make up prior art, provides a kind of preparation method of powder metallurgy of engine piston pin.
The present invention is achieved by the following technical solutions:
A preparation method for powder metallurgy of engine piston pin, it comprises the following steps:
(1) prepare burden: described engine gudgeon pin is made up of the raw material of following weight ratio:
The nickel of 0.4-0.6%, the magnesium of 0.4-0.6%, 0.6-0.8% graphite powder, the cadmium of 0.4-0.6%, the zinc stearate of 0.3-0.4%, the modified additive of 1-2%, 4-6% copper, all the other are iron;
Described modified additive is made up of the raw material of following weight parts:
Nano silicon 90-100, calcium hydroxide 30-40, stearic acid 30-40, cumyl peroxide 6-8, plastic of poly vinyl acetate 8-10, celestite powder 2-4, AEO 2-3, atoleine 3-4, vinyl three ('beta '-methoxy ethyoxyl) silane 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, obtains calcium hydroxide aqueous solution;
B, the stearic acid of above-mentioned weight portion is heated to 60-70 DEG C, add the celestite powder of above-mentioned weight portion, AEO, raised temperature is as 80-85 DEG C, constant temperature stirs 1-2 hour, slowly be added into above-mentioned calcium hydroxide aqueous solution under agitation, continue after interpolation to stir 1-2 hour, obtain mixed liquor;
C, the nanometer silicon dioxide particle of above-mentioned weight portion is distributed in water, obtains the suspension of nano-silica-containing;
D, the cumyl peroxide adding above-mentioned weight portion in the suspension of above-mentioned nano-silica-containing, plastic of poly vinyl acetate, atoleine stir 40-50 minute under the speed of 500-600 rev/min, add the mixed liquor that vinyl three ('beta '-methoxy ethyoxyl) silane of above-mentioned weight portion and step B obtain again, high speed 1800-2000 rev/min is stirred 20-30 minute, dry, grind into superfines, obtain described modified additive.
(2) suppress: the copper of above-mentioned weight portion, iron, modified additive are pre-mixed, then add each raw material mixing of residue, at the pressure 3-4 minute of 600-1000 MPa, make blank of colding pressing;
(3) sinter: be under the condition of vacuum, reducing atmosphere or inert atmosphere in sintering atmosphere, above-mentioned blank of colding pressing is sintered under the pressure of 1-5MPa, temperature schedule is: first pre-burning 20-30 minute at 800-900 DEG C, Isothermal sinter 1-2 hour at temperature is 900-1200 DEG C again, and then cool to normal temperature with the speed of 4-6 DEG C/minute reduction temperature, obtain blank;
(4) shaping: the blank shaping mould after sintering is carried out shaping to it, obtains semi-finished product;
(5) heat treatment: above-mentioned semi-finished product are incubated 1-3 hour at 860-880 DEG C, then enter oil groove quenching, oil temperature is 45-55 DEG C;
(6) cold treatment: the semi-finished product after heat treatment are left standstill 18-20 hour at normal temperatures, puts into cold treatment 60-80 minute under the environment of-50--60 DEG C;
(7) tempering: the semi-finished product after cold treatment are sent into tempering furnace tempering 1-2 hour, temperature 200-250 DEG C, insulation 1-2 hour;
(8) phosphatization: pre-phosphatization: Phosphating Solution solution temperature is 90-100 DEG C, and pre-phosphating time is 10-15 minute; Pickling: the hydrochloric acid solution pickling 1-3 minute by concentration being at room temperature 10-12%; Normal temperature washing 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; Dry and obtain described engine gudgeon pin.
Advantage of the present invention is:
The modified additive of the present invention by adding, superfines is provided in mixed material, this superfines can be filled between oarse-grained gap, thus improve the apparent density of compound, and the main component of this superfines is nano silicon and calcium stearate, pass through silane coupler, the new modified auxiliary agent that the auxiliary agents such as cumyl peroxide obtain, further increase every physical characteristics such as the wearability of goods, wherein plastic of poly vinyl acetate and atoleine add in modified additive as lubricant, enhance the effect of this modified additive in mixing compacting, powder metallurgy structural part compact strength is significantly 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 preparation method for powder metallurgy of engine piston pin, it comprises the following steps:
(1) prepare burden: described engine gudgeon pin is made up of the raw material of following weight ratio:
(1) prepare burden: described engine gudgeon pin is made up of the raw material of following weight ratio:
The nickel of 0.6%, the magnesium of 0.6%, 0.6-0.8% graphite powder, 0.6% cadmium, 0.4% zinc stearate, 2% modified additive, 6% copper, all the other are iron;
Described modified additive is made up of the raw material of following weight parts:
Nano silicon 100, calcium hydroxide 40, stearic acid 40, cumyl peroxide 8, plastic of poly vinyl acetate 10, celestite powder 4, AEO 3, atoleine 4, vinyl three ('beta '-methoxy ethyoxyl) silane 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 110 DEG C, obtains calcium hydroxide aqueous solution;
B, the stearic acid of above-mentioned weight portion is heated to 70 DEG C, add the celestite powder of above-mentioned weight portion, AEO, raised temperature is as 85 DEG C, constant temperature stirs 2 hours, slowly be added into above-mentioned calcium hydroxide aqueous solution under agitation, continue stirring after interpolation 2 hours, obtain mixed liquor;
C, the nanometer silicon dioxide particle of above-mentioned weight portion is distributed in water, obtains the suspension of nano-silica-containing;
D, the cumyl peroxide adding above-mentioned weight portion in the suspension of above-mentioned nano-silica-containing, plastic of poly vinyl acetate, atoleine stir 50 minutes under the speed of 600 revs/min, add the mixed liquor that vinyl three ('beta '-methoxy ethyoxyl) silane of above-mentioned weight portion and step B obtain again, 2000 revs/min are stirred 30 minutes at a high speed, dry, grind into superfines, obtain described modified additive.
(2) suppress: the copper of above-mentioned weight portion, iron, modified additive are pre-mixed, then add the mixing of residue each raw material, in the pressure system 4 minutes of 1000 MPa, make blank of colding pressing;
(3) sinter: be under the condition of vacuum, reducing atmosphere or inert atmosphere in sintering atmosphere, above-mentioned blank of colding pressing is sintered under the pressure of 5MPa, temperature schedule is: first pre-burning 30 minutes at 900 DEG C, Isothermal sinter 1-2 hour at temperature is 1200 DEG C again, and then cool to normal temperature with the speed of 6 DEG C/minute reduction temperature, obtain blank;
(4) shaping: the blank shaping mould after sintering is carried out shaping to it, obtains semi-finished product;
(5) heat treatment: above-mentioned semi-finished product are incubated 1 hour at 880 DEG C, then enter oil groove quenching, oil temperature is 55 DEG C;
(6) cold treatment: the semi-finished product after heat treatment are left standstill 20 hours at normal temperatures, to put under the environment of-60 DEG C cold treatment 80 minutes;
(7) tempering: the semi-finished product after cold treatment are sent into tempering furnace tempering 2 hours, temperature 250 DEG C, insulation 1-2 hour;
(8) phosphatization: pre-phosphatization: Phosphating Solution solution temperature is 100 DEG C, and pre-phosphating time is 15 minutes; Pickling: be at room temperature the hydrochloric acid solution pickling 1 minute of 12% by concentration; Normal temperature washes 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 3 times; Dry and obtain described engine gudgeon pin;
Performance test:
Ultimate tensile strength intensity σ b (MPa): 816
Yield strength σ s (MPa): 510
Percentage elongation δ 5 (%): 16.5
Contraction percentage of area ψ (%): 41.
Claims (1)
1. a preparation method for powder metallurgy of engine piston pin, is characterized in that it comprises the following steps:
(1) prepare burden: described engine gudgeon pin is made up of the raw material of following weight ratio:
The nickel of 0.4-0.6%, the magnesium of 0.4-0.6%, 0.6-0.8% graphite powder, the cadmium of 0.4-0.6%, the zinc stearate of 0.3-0.4%, the modified additive of 1-2%, 4-6% copper, all the other are iron;
Described modified additive is made up of the raw material of following weight parts:
Nano silicon 90-100, calcium hydroxide 30-40, stearic acid 30-40, cumyl peroxide 6-8, plastic of poly vinyl acetate 8-10, celestite powder 2-4, AEO 2-3, atoleine 3-4, vinyl three ('beta '-methoxy ethyoxyl) silane 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, obtains calcium hydroxide aqueous solution;
B, the stearic acid of above-mentioned weight portion is heated to 60-70 DEG C, add the celestite powder of above-mentioned weight portion, AEO, raised temperature is as 80-85 DEG C, constant temperature stirs 1-2 hour, slowly be added into above-mentioned calcium hydroxide aqueous solution under agitation, continue after interpolation to stir 1-2 hour, obtain mixed liquor;
C, the nanometer silicon dioxide particle of above-mentioned weight portion is distributed in water, obtains the suspension of nano-silica-containing;
D, the cumyl peroxide adding above-mentioned weight portion in the suspension of above-mentioned nano-silica-containing, plastic of poly vinyl acetate, atoleine stir 40-50 minute under the speed of 500-600 rev/min, add the mixed liquor that vinyl three ('beta '-methoxy ethyoxyl) silane of above-mentioned weight portion and step B obtain again, high speed 1800-2000 rev/min is stirred 20-30 minute, dry, grind into superfines, obtain described modified additive;
(2) suppress: the copper of above-mentioned weight portion, iron, modified additive are pre-mixed, then add each raw material mixing of residue, at the pressure 3-4 minute of 600-1000 MPa, make blank of colding pressing;
(3) sinter: be under the condition of vacuum, reducing atmosphere or inert atmosphere in sintering atmosphere, above-mentioned blank of colding pressing is sintered under the pressure of 1-5MPa, temperature schedule is: first pre-burning 20-30 minute at 800-900 DEG C, Isothermal sinter 1-2 hour at temperature is 900-1200 DEG C again, and then cool to normal temperature with the speed of 4-6 DEG C/minute reduction temperature, obtain blank;
(4) shaping: the blank shaping mould after sintering is carried out shaping to it, obtains semi-finished product;
(5) heat treatment: above-mentioned semi-finished product are incubated 1-3 hour at 860-880 DEG C, then enter oil groove quenching, oil temperature is 45-55 DEG C;
(6) cold treatment: the semi-finished product after heat treatment are left standstill 18-20 hour at normal temperatures, puts into cold treatment 60-80 minute under the environment of-50--60 DEG C;
(7) tempering: the semi-finished product after cold treatment are sent into tempering furnace tempering 1-2 hour, temperature 200-250 DEG C, insulation 1-2 hour;
(8) phosphatization: pre-phosphatization: Phosphating Solution solution temperature is 90-100 DEG C, and pre-phosphating time is 10-15 minute; Pickling: the hydrochloric acid solution pickling 1-3 minute by concentration being at room temperature 10-12%; Normal temperature washing 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; Dry and obtain described engine gudgeon pin.
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| CN201310120303.2A CN103252491B (en) | 2013-04-09 | 2013-04-09 | Method for preparing powder metallurgy of engine piston pin |
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| CN201310120303.2A CN103252491B (en) | 2013-04-09 | 2013-04-09 | Method for preparing powder metallurgy of engine piston pin |
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| CN103252491B true CN103252491B (en) | 2015-07-08 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| 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 |
| 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 |
| 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 |
| CN103909269B (en) * | 2014-04-16 | 2015-08-12 | 刘贵平 | A kind of powder metallurgy door closer piston and processing technology thereof |
| CN104625630B (en) * | 2014-12-24 | 2017-01-11 | 宁波瑞国精机工业有限公司 | Wear-resisting pin shaft and machining method thereof |
| CN105537592A (en) * | 2015-12-30 | 2016-05-04 | 安徽悦众车身装备有限公司 | Powder metallurgy preparation method of shifting fork for automobile gearbox |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002075171A1 (en) * | 2001-03-16 | 2002-09-26 | Sundram Fasteners Limited | Conrod and a method of producing the same |
| CN101249562A (en) * | 2008-03-26 | 2008-08-27 | 浙江中平粉末冶金有限公司 | Powder metallurgy prescription and technique |
| CN101733403A (en) * | 2009-12-11 | 2010-06-16 | 山东呈瑞粉末冶金有限公司 | Process for manufacturing main drive inner core of gasoline economizer for motorcycle |
| CN102233425A (en) * | 2011-07-22 | 2011-11-09 | 浙江中平粉末冶金有限公司 | Powder metallurgy formula and process |
| CN102808898A (en) * | 2012-08-27 | 2012-12-05 | 吕元之 | Powdery metallurgy balance block for crankshaft of gasoline engine and production method for powdery metallurgy balance block |
-
2013
- 2013-04-09 CN CN201310120303.2A patent/CN103252491B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002075171A1 (en) * | 2001-03-16 | 2002-09-26 | Sundram Fasteners Limited | Conrod and a method of producing the same |
| CN101249562A (en) * | 2008-03-26 | 2008-08-27 | 浙江中平粉末冶金有限公司 | Powder metallurgy prescription and technique |
| CN101733403A (en) * | 2009-12-11 | 2010-06-16 | 山东呈瑞粉末冶金有限公司 | Process for manufacturing main drive inner core of gasoline economizer for motorcycle |
| CN102233425A (en) * | 2011-07-22 | 2011-11-09 | 浙江中平粉末冶金有限公司 | Powder metallurgy formula and process |
| CN102808898A (en) * | 2012-08-27 | 2012-12-05 | 吕元之 | Powdery metallurgy balance block for crankshaft of gasoline engine and production method for powdery metallurgy balance block |
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