CN107321993A - A kind of powder metallurgical gear preparation method for being used to share bicycle - Google Patents
A kind of powder metallurgical gear preparation method for being used to share bicycle Download PDFInfo
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- CN107321993A CN107321993A CN201710499040.9A CN201710499040A CN107321993A CN 107321993 A CN107321993 A CN 107321993A CN 201710499040 A CN201710499040 A CN 201710499040A CN 107321993 A CN107321993 A CN 107321993A
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- gear
- powder
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
- B22F5/08—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of toothed articles, e.g. gear wheels; of cam discs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/10—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
- B22F3/1003—Use of special medium during sintering, e.g. sintering aid
- B22F3/1007—Atmosphere
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/24—After-treatment of workpieces or articles
- B22F3/26—Impregnating
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/16—Ferrous alloys, e.g. steel alloys containing copper
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
- C23C8/08—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases only one element being applied
- C23C8/20—Carburising
- C23C8/22—Carburising of ferrous surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
- B22F2998/10—Processes characterised by the sequence of their steps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
Abstract
The invention belongs to share the gear preparation method in bicycle, a kind of powder metallurgical gear preparation method for being used to share bicycle is refered in particular to, is comprised the following steps：It is prepared by mixed powder, a certain proportion of copper, nickel, molybdenum are diffused among certain iron powder than row by the processing mode of diffusion, and it is mixed into a certain proportion of graphite and lubricant, be mixed into powder metallurgy raw material at normal temperatures, then powder metallurgy raw material are suppressed, sintered, Vehicle Processing, heat treatment, vacuum oil immersion, outer rounding, immersion oil cleaning finished product is made.The present invention is mixed metal dust as raw material, and gear is made through the step such as overmolding and sintering in raw material, the mode for processing gear with steel in the prior art is made into use powder metallurgy die casting gear, it is high with the accuracy of gear, save the time, the advantages of production efficiency is high, cost is low and environmentally friendly.
Description
Technical field
The invention belongs to share the gear preparation method in bicycle, a kind of powder metallurgical gear for being used to share bicycle is refered in particular to
Preparation method.
Background technology
In recent years, as social constantly development, people are also constantly strengthened the protective awareness of environment, Green Travel is by people
Paid attention to, and for the ease of the trip of people, shared bicycle is produced therewith, and shared bicycle refers to enterprise in campus, subway station
The ground such as point, bus station, residential area, shopping centre or common service area provide the shared service of bicycle.At present, on the market a lot
Shared bicycle can use gear-driven pattern, and therefore, the gear demand on bicycle is also increasingly lifted.
At present, most of gears are all made by following technique：Raw material saw material, blank forge, blank normalizing, tooth
The process such as base processing, gear blank kerve, mill teeth, heat treatment, ball blast, centreless grinding, then ready-made gear is cleaned and packed, it is complete
Into finished product, finally storage storage.Conventional processes are more, complex, required while raw material are generally bar, it is necessary to saw and expect into
Size, spend that the time is longer, and error rate is also higher；, it is necessary to be forged twice when blank is forged, spend
Time and artificial more, a large amount of productions in progress odd-numbered day of being had no idea for the less enterprise of scale.
The content of the invention
It is an object of the invention to provide a kind of powder metallurgical gear preparation method for being used to share bicycle, it can solve the problem that above-mentioned
Problem present in background technology.
The object of the present invention is achieved like this：
A kind of powder metallurgical gear preparation method for being used to share bicycle, comprises the following steps：
1) powder is mixed：By a certain proportion of copper and mickel by the processing mode of diffusion be diffused into a certain proportion of iron powder it
In, and a certain proportion of graphite and lubricant are mixed into, powder metallurgy raw material are mixed and made at normal temperatures；
2) it is compressing：The powder metallurgy raw material being mixed in step one are used on FY-160 press
85T-87T pressure is pressed into shape and density needed for gear, and the press sectional area pressure is 6T/cm2-7T/cm2；
3) sinter：The compressing gear of step 2 is placed in the meshbeltfurnace of protective atmosphere and is sintered；Sintering
Shi Caiyong decomposed ammonias and nitrogen, sintering process are respectively classified into three different temperatures sections, and sintering time is 2-3 hours altogether；
4) Vehicle Processing：The gear that sintering is completed in step 3 is machined, and is pressed into the shape needed for gear
Shape；
5) brush teeth：The residual burr that the gear surface of Vehicle Processing will be completed in step 4 is removed；
6) it is heat-treated：The gear completed in step 5 is reached into the physical of needs by carburizing quenching process
Can, gear 1.5-2.5 hour of carburizing in multipurpose furnace, in-furnace temperature is maintained between 820 DEG C -860 DEG C, and carbon potential is
The gear surface hardness after 0.7-0.9, Carburization Treatment reaches 620-820HV0.1, and carburized layer thickness is in 0.2-1.0mm
Between, the anti-intensity of tooth reaches more than 13000N；
7) vacuum oil immersion：Fluid is infiltrated up to the gear internal by fluid by the state of negative pressure；
8) outer rounding：On the basis of the endoporus of the gear, the excircle dimension of the gear is refined to institute by grinding machine
Size is needed, the cylindrical runout error with endoporus is less than 0.01mm；
9) immersion oil is cleaned：Put the gear after fine cylindrical into cleaning machine to be cleaned, place into separator progress
Immersion oil is finished product.
Preferably, the ratio of copper and mickel is respectively in the powders mixing：1.5% and 2%, the graphite is with lubricating
The ratio of agent is respectively 0.4% and 0.65%.
Preferably, a certain amount of molybdenum, the copper, nickel, the ratio point of molybdenum three are also included in the powder metallurgy raw material
Not Wei 1.5%, 1.75% and 0.5%, the ratio of the iron powder is 96.25%；The ratio of the graphite and lubricant is respectively：
0.19% and 0.65%.
Preferably, a certain amount of molybdenum and manganese, the copper, nickel, molybdenum, manganese are also included in the powder metallurgy raw material
Ratio is respectively 1.5%, 4%, 0.5% and 0.2%, and the ratio of the iron powder is 93.8%；The ratio of the graphite and lubricant
Example be respectively：0.19% and 0.65%.
Preferably, the mode of the powder mixing is：Stirred clockwise with mixer 30 minutes, another mistake hour hands stir 30 points
Clock.
Preferably, the ratio of the decomposed ammonia and nitrogen is 9:1, the temperature section is respectively：750℃、1070℃、
1120℃。
Preferably, the sintering time of three different temperatures section is respectively：20 minutes, 50 minutes, 80 minutes.
Preferably, the excircle dimension is
The present invention is prominent and beneficial compared with prior art to be had the technical effect that：
1st, the present invention produces metal dust or with metal dust as raw material, by the steps such as compressing and sintering, system
It is high with the accuracy of gear making into use powder metallurgy die casting gear with steel processing gear in the prior art into gear, during saving
Between, production efficiency is high, low cost and other advantages, and environmental protection.
2nd, in the preparation process of powder metallurgical gear of the present invention, the first step first passes through the mixed various trace elements of powder addition and come
Increase the intensity of product and ensure product size and ensure the uniformity of product；The compressing of second step is a kind of high efficiency
Production technology, if darg was calculated with eight hours, compacting quantity can reach 3600-4000, and suppress what is come
Product size is stable, and product hole size is unified very much, it is not necessary to unnecessary following process, when can save substantial amounts of tune machine
Between；3rd step by sintering process by mixed powder when the lubricant that adds vapor away so that interiors of products leaves space, and sintering can be by
Raw material are preferably bonded together, and preferably spread trace element.
3rd, the present invention with the addition of " vacuum oil immersion " step, fluid can be reached fluid in product by the state of negative pressure
Portion, plays a part of lubrication, just without being lubricated oily addition again in subsequent handling；By powder suppress Lai gear knot
Structure is stable, and its endoporus uniformity preferably, can improve production efficiency with cylindrical grinding process.
4th, the method production efficiency that the present invention is suppressed by powder is high, and can solve the problem that can not meet volume production need in the prior art
Situation about asking, while the problem of common iron gear or iron teeth wheel need to add lubricating oil in assembling is also solved, and the present invention
The method cost provided is low, and waste material is few, energy-conserving and environment-protective.
Embodiment
With reference to specific embodiment, the invention will be further described：
The invention provides a kind of powder metallurgical gear for being used to share bicycle,
The preparation method step of embodiment one is as follows：
1.5 parts of copper powder is taken, 1.75 parts of nickel powder and 0.5 part of molybdenum are diffused into 96.25 by the processing mode of diffusion
Among the iron powder of part, 0.19 part of graphite and 0.65 part of lubricant is then mixed into, is stirred clockwise with mixer at normal temperatures
Mix 30 minutes, the stirring of another mistake hour hands is mixed for 30 minutes, so that powder metallurgy raw material are made；
The above-mentioned powder metallurgy raw material mixed are pressed on FY-160 press with 85T-87T pressure
Shape and density needed for gear, density need to reach 7.0g/cm3, and sectional area pressure is 6.5T/cm2；Suppressed by press
Product hole size it is unified；
Above-mentioned compressing gear is placed in the meshbeltfurnace for protecting its part and be sintered, during sintering, contained in stove
90% decomposed ammonia and 10% nitrogen, are divided into 3 sections, first paragraph regulation temperature is 750 DEG C, sinters 20 points by sintering temperature
Clock；Second segment regulation temperature is 1070 DEG C, is sintered 50 minutes；3rd section of regulation temperature is 1120 DEG C, is sintered 80 minutes；Three sections of burnings
Sintering work is completed after knot；
The gear that above-mentioned completion is sintered is machined, and is pressed into the shape that can not be deformed：Product requirement tooth
The back side is inclined plane after wheel, and the face that press is pressed out when suppressing is to face directly, with Vehicle Processing to inclined-plane；
The residual burr of the gear surface of above-mentioned completion Vehicle Processing is removed so that product surface is bright, dry
Only；
The gear of above-mentioned completion Vehicle Processing is reached to the physical property of needs, the tooth by carburizing quenching process
Wheel 2 hours of carburizing in multipurpose furnace, in-furnace temperature is maintained between 820 DEG C -860 DEG C, and carbon potential is 0.7-0.9, Carburization Treatment
The gear surface hardness afterwards reaches 620-820HV0.1, carburized layer thickness is 0.2-1.0mm, the anti-intensity of tooth 13000N with
On；
Fluid is infiltrated up to the gear internal by the state of negative pressure by fluid, lubrication can be played a part of, subsequently
Without adding lubricating oil again；
On the basis of the endoporus of the gear, by grinding machine by the excircle dimension of the gear refine to The cylindrical runout error with endoporus is less than 0.01mm；
Finally put the gear after fine cylindrical into cleaning machine to be cleaned, place into separator progress immersion oil and be into
Product, are then placed in special vacuum formed box, then are packed, and complete after above-mentioned operation, finished product is put in storage.
The preparation method step of embodiment two is as follows：
Take 1.5 parts of copper powder, 4 parts of nickel powder, the processing mode that 0.5 part of molybdenum powder and 0.2 part of manganese powder pass through diffusion
Among the iron powder for being diffused into 93.8 parts, 0.5 part of graphite and 0.65 part of lubricant is then mixed into, mixer is used at normal temperatures
Stir 30 minutes clockwise, the stirring of another mistake hour hands is mixed for 30 minutes, so that powder metallurgy raw material are made；
The above-mentioned powder metallurgy raw material mixed are pressed on FY-160 press with 85T-87T pressure
Shape and density needed for gear, density need to reach 7.0g/cm3, and sectional area pressure is 6.5T/cm2；Suppressed by press
Product hole size it is unified；
Above-mentioned compressing gear is placed in the meshbeltfurnace for protecting its part and be sintered, during sintering, contained in stove
90% decomposed ammonia and 10% nitrogen, are divided into 3 sections, first paragraph regulation temperature is 750 DEG C, sinters 20 points by sintering temperature
Clock；Second segment regulation temperature is 1070 DEG C, is sintered 50 minutes；3rd section of regulation temperature is 1120 DEG C, is sintered 80 minutes；Three sections of burnings
Sintering work is completed after knot；
The gear that above-mentioned completion is sintered is machined, and is pressed into the shape that can not be deformed：Product requirement tooth
The back side is inclined plane after wheel, and the face that press is pressed out when suppressing is to face directly, with Vehicle Processing to inclined-plane；
The residual burr of the gear surface of above-mentioned completion Vehicle Processing is removed so that product surface is bright, dry
Only；
The gear of above-mentioned completion Vehicle Processing is reached to the physical property of needs, the tooth by carburizing quenching process
Wheel 2 hours of carburizing in multipurpose furnace, in-furnace temperature is maintained between 820 DEG C -860 DEG C, and carbon potential is 0.7-0.9, Carburization Treatment
The gear surface hardness afterwards reaches 620-820HV0.1, carburized layer thickness is 0.2-1.0mm, the anti-intensity of tooth 13000N with
On；
Fluid is infiltrated up to the gear internal by the state of negative pressure by fluid, lubrication can be played a part of, subsequently
Without adding lubricating oil again；
On the basis of the endoporus of the gear, by grinding machine by the excircle dimension of the gear refine to The cylindrical runout error with endoporus is less than 0.01mm；
Finally put the gear after fine cylindrical into cleaning machine to be cleaned, place into separator progress immersion oil and be into
Product, are then placed in special vacuum formed box, then are packed, and complete after above-mentioned operation, finished product is put in storage.
The preparation method step of embodiment three is as follows：
Take among 1.5 parts of copper powder, 2 parts of nickel powder, the iron powder that 95.45 parts are diffused into by the processing mode of diffusion, so
0.4 part of graphite and 0.65 part of lubricant are mixed into afterwards, are stirred clockwise with mixer 30 minutes at normal temperatures, then counterclockwise
Stirring is mixed for 30 minutes, so that powder metallurgy raw material are made；
The above-mentioned powder metallurgy raw material mixed are pressed on FY-160 press with 85T-87T pressure
Shape and density needed for gear, density need to reach 7.0g/cm3, and sectional area pressure is 6.5T/cm2；Suppressed by press
Product hole size it is unified；
Above-mentioned compressing gear is placed in the meshbeltfurnace for protecting its part and be sintered, during sintering, contained in stove
90% decomposed ammonia and 10% nitrogen, are divided into 3 sections, first paragraph regulation temperature is 750 DEG C, sinters 20 points by sintering temperature
Clock；Second segment regulation temperature is 1070 DEG C, is sintered 50 minutes；3rd section of regulation temperature is 1120 DEG C, is sintered 80 minutes；Three sections of burnings
Sintering work is completed after knot；
The gear that above-mentioned completion is sintered is machined, and is pressed into the shape that can not be deformed：Product requirement tooth
The back side is inclined plane after wheel, and the face that press is pressed out when suppressing is to face directly, with Vehicle Processing to inclined-plane；
The residual burr of the gear surface of above-mentioned completion Vehicle Processing is removed so that product surface is bright, dry
Only；
The gear of above-mentioned completion Vehicle Processing is reached to the physical property of needs, the tooth by carburizing quenching process
Wheel 2 hours of carburizing in multipurpose furnace, in-furnace temperature is maintained between 820 DEG C -860 DEG C, and carbon potential is 0.7-0.9, Carburization Treatment
The gear surface hardness afterwards reaches 620-820HV0.1, carburized layer thickness is 0.2-1.0mm, the anti-intensity of tooth 13000N with
On；
Fluid is infiltrated up to the gear internal by the state of negative pressure by fluid, lubrication can be played a part of, subsequently
Without adding lubricating oil again；
On the basis of the endoporus of the gear, by grinding machine by the excircle dimension of the gear refine to The cylindrical runout error with endoporus is less than 0.01mm；
Finally put the gear after fine cylindrical into cleaning machine to be cleaned, place into separator progress immersion oil and be into
Product, are then placed in special vacuum formed box, then are packed, and complete after above-mentioned operation, finished product is put in storage.
The present invention is mixed metal dust as raw material, and raw material is through overmolding, sintering, Vehicle Processing, brush teeth, heat treatment
And the step such as vacuum oil immersion, gear is made, the mode for processing gear with steel in the prior art is made into use powder metallurgy die casting
Gear, it is high with the accuracy of gear, save the time, production efficiency is high, low cost and other advantages, and environmental protection.
It should be understood by those skilled in the art that, the present invention is not limited to the above embodiments, above-described embodiment and explanation
Merely illustrating the principles of the invention described in book, without departing from the spirit and scope of the present invention, the present invention also have
Various changes and modifications, these changes and improvements all fall within the protetion scope of the claimed invention.The claimed scope of the invention
By appended claims and its equivalent thereof.
Claims (8)
1. a kind of powder metallurgical gear preparation method for being used to share bicycle, it is characterised in that comprise the following steps：
1) powder is mixed：A certain proportion of copper and mickel is diffused among a certain proportion of iron powder by the processing mode of diffusion,
And a certain proportion of graphite and lubricant are mixed into, powder metallurgy raw material are mixed and made at normal temperatures；
2) it is compressing：The powder metallurgy raw material being mixed in step one are used into 85T- on FY-160 press
87T pressure is pressed into shape and density needed for gear, and sectional area pressure is 6T/cm2-7T/cm2；
3) sinter：The compressing gear of step 2 is placed in the meshbeltfurnace of protective atmosphere and is sintered；Adopted during sintering
With decomposed ammonia and nitrogen, sintering process is respectively classified into three different temperatures sections, and sintering time is 2-3 hours altogether；
4) Vehicle Processing：The gear that sintering is completed in step 3 is machined, and is pressed into the shape needed for gear；
5) brush teeth：The residual burr that the gear surface of Vehicle Processing will be completed in step 4 is removed；
6) it is heat-treated：The gear completed in step 5 is reached to the physical property of needs, institute by carburizing quenching process
Gear 1.5-2.5 hour of carburizing in multipurpose furnace is stated, in-furnace temperature is maintained between 820 DEG C -860 DEG C, and carbon potential is 0.7-
0.9, the gear surface hardness after Carburization Treatment reaches 620-820HV0.1, carburized layer thickness be in 0.2-1.0mm between,
The anti-intensity of tooth reaches more than 13000N；
7) vacuum oil immersion：Fluid is infiltrated up to the gear internal by fluid by the state of negative pressure；
8) outer rounding：On the basis of the endoporus of the gear, the excircle dimension of the gear is refined to required chi by grinding machine
Very little, the cylindrical runout error with endoporus is less than 0.01mm；
9) immersion oil is cleaned：Put the gear after fine cylindrical into cleaning machine to be cleaned, place into separator and carry out immersion oil
For finished product.
2. the powder metallurgical gear preparation method according to claim 1 for being used to share bicycle, it is characterised in that the powder
The ratio of copper and mickel is respectively in last blend step：1.5% and 2%, the ratio of the graphite and lubricant be respectively 0.4% and
0.65%.
3. the powder metallurgical gear preparation method according to claim 1 for being used to share bicycle, it is characterised in that the powder
A certain amount of molybdenum is also included in last metallurgical raw material, the copper, nickel, the ratio of molybdenum three are respectively 1.5%, 1.75% He
0.5%；The ratio of the graphite and lubricant is respectively：0.19% and 0.65%.
4. the powder metallurgical gear preparation method of bicycle is shared according to being used for described in claim 1, it is characterised in that the powder
A certain amount of molybdenum and manganese are also included in metallurgical raw material；The copper, nickel, molybdenum, the ratio of manganese are respectively 1.5%, 4%,
0.5% and 0.2%；The ratio of the graphite and lubricant is respectively：0.19% and 0.65%.
5. the powder metallurgical gear preparation method of bicycle is shared according to being used for described in claim any one of 1-4, it is characterised in that
The mode of powder mixing is：Stirred clockwise with mixer 30 minutes, another mistake hour hands are stirred 30 minutes.
6. the powder metallurgical gear preparation method of bicycle is shared according to being used for described in claim 1, it is characterised in that the ammonia point
It is 9 to vent one's spleen with the ratio of nitrogen:1, the temperature section is respectively：750℃、1070℃、1120℃.
7. the powder metallurgical gear preparation method of bicycle is shared according to being used for described in claim 1 or 6, it is characterised in that described
The sintering time of three different temperatures section is respectively：20 minutes, 50 minutes, 80 minutes.
8. the powder metallurgical gear preparation method of bicycle is shared according to being used for described in claim 1, it is characterised in that described cylindrical
Size is
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| CN201710499040.9A CN107321993A (en) | 2017-06-27 | 2017-06-27 | A kind of powder metallurgical gear preparation method for being used to share bicycle |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107891154A (en) * | 2017-11-30 | 2018-04-10 | 无锡昊瑜节能环保设备有限公司 | A kind of preparation method of sliding bearing powdered metallurgical material |
| CN109128190A (en) * | 2018-10-15 | 2019-01-04 | 常熟市迅达粉末冶金有限公司 | A kind of helical gear processing technology of thin-walled |
| CN112157266A (en) * | 2020-09-30 | 2021-01-01 | 南通冠达粉末冶金有限公司 | Gear powder metallurgy sintering treatment process |
| CN112338192A (en) * | 2020-09-30 | 2021-02-09 | 南通冠达粉末冶金有限公司 | High-low temperature resistant oil-retaining bearing made of powder metallurgy material and manufacturing method thereof |
| CN112605381A (en) * | 2020-12-01 | 2021-04-06 | 青志(无锡)粉末铸锻有限公司 | Material of gear and production process thereof |
| CN115305418A (en) * | 2022-06-30 | 2022-11-08 | 南通市中吕齿轮有限公司 | High-strength gear and machining process thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102179519A (en) * | 2011-03-09 | 2011-09-14 | 宁波甬台粉末冶金有限公司 | Powder metallurgy transmission gear and manufacturing method thereof |
| CN103691958A (en) * | 2013-12-06 | 2014-04-02 | 无锡市德力流体科技有限公司 | Powdered metallurgical gear processing technology |
| CN104028765A (en) * | 2014-06-27 | 2014-09-10 | 张家港振江粉末冶金制品有限公司 | Powder metallurgy component and production method of powder metallurgy component with through hole |
| CN104070160A (en) * | 2014-06-30 | 2014-10-01 | 张家港振江粉末冶金制品有限公司 | Powder metallurgy duplicate gear and preparation method for same |
| CN105149593A (en) * | 2015-06-23 | 2015-12-16 | 江苏鹰球集团有限公司 | Petrol pump motor oil bearing manufacturing method based on powder metallurgy |
| CN105950983A (en) * | 2016-07-18 | 2016-09-21 | 安徽奥泰粉末冶金有限公司 | Production method of powder metallurgy gear |
-
2017
- 2017-06-27 CN CN201710499040.9A patent/CN107321993A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102179519A (en) * | 2011-03-09 | 2011-09-14 | 宁波甬台粉末冶金有限公司 | Powder metallurgy transmission gear and manufacturing method thereof |
| CN103691958A (en) * | 2013-12-06 | 2014-04-02 | 无锡市德力流体科技有限公司 | Powdered metallurgical gear processing technology |
| CN104028765A (en) * | 2014-06-27 | 2014-09-10 | 张家港振江粉末冶金制品有限公司 | Powder metallurgy component and production method of powder metallurgy component with through hole |
| CN104070160A (en) * | 2014-06-30 | 2014-10-01 | 张家港振江粉末冶金制品有限公司 | Powder metallurgy duplicate gear and preparation method for same |
| CN105149593A (en) * | 2015-06-23 | 2015-12-16 | 江苏鹰球集团有限公司 | Petrol pump motor oil bearing manufacturing method based on powder metallurgy |
| CN105950983A (en) * | 2016-07-18 | 2016-09-21 | 安徽奥泰粉末冶金有限公司 | Production method of powder metallurgy gear |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107891154A (en) * | 2017-11-30 | 2018-04-10 | 无锡昊瑜节能环保设备有限公司 | A kind of preparation method of sliding bearing powdered metallurgical material |
| CN109128190A (en) * | 2018-10-15 | 2019-01-04 | 常熟市迅达粉末冶金有限公司 | A kind of helical gear processing technology of thin-walled |
| CN112157266A (en) * | 2020-09-30 | 2021-01-01 | 南通冠达粉末冶金有限公司 | Gear powder metallurgy sintering treatment process |
| CN112338192A (en) * | 2020-09-30 | 2021-02-09 | 南通冠达粉末冶金有限公司 | High-low temperature resistant oil-retaining bearing made of powder metallurgy material and manufacturing method thereof |
| CN112605381A (en) * | 2020-12-01 | 2021-04-06 | 青志(无锡)粉末铸锻有限公司 | Material of gear and production process thereof |
| CN115305418A (en) * | 2022-06-30 | 2022-11-08 | 南通市中吕齿轮有限公司 | High-strength gear and machining process thereof |
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