CN109128189A - A kind of manufacturing method adjusting the speed three-jaw ring gear - Google Patents
A kind of manufacturing method adjusting the speed three-jaw ring gear Download PDFInfo
- Publication number
- CN109128189A CN109128189A CN201810775126.4A CN201810775126A CN109128189A CN 109128189 A CN109128189 A CN 109128189A CN 201810775126 A CN201810775126 A CN 201810775126A CN 109128189 A CN109128189 A CN 109128189A
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- China
- Prior art keywords
- powder
- groove
- ring gear
- sintering
- jaw ring
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- 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.)
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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
- B22F1/105—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material containing inorganic lubricating or binding agents, e.g. metal salts
-
- 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
-
- 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 present invention relates to a kind of manufacturing methods for adjusting the speed three-jaw ring gear.This method includes the following steps: step 1: proportion metal powder, step 2: compression moulding, step 3: the sintering of three-jaw ring gear, step 4: three-jaw ring gear Carburization Treatment, step 5: three-jaw ring gear tempering, step 6: polishing packaging.This method scientific and precise improves three-jaw ring gear teeth intensity and comprehensive mechanical performance, increases the ability of transmitting torque, improves the bearing capacity of dog, extends the service life of three-jaw ring gear.
Description
Technical field
The present invention relates to ring gear manufacturing technology field more particularly to a kind of manufacturing methods for adjusting the speed three-jaw ring gear.
Background technique
In current industrial production and daily life, electric hand drill is seen everywhere, but with the speed regulation three on electric hand drill
Pawl ring gear is difficult to touch, and common speed regulation gear ring is metal casting part or plastic cast part or uses traditional machining
Technique.Disadvantage is that: the mechanical property of cast member and traditional machining part is poor, and material inside organization is loose, produces
Product mechanical strength is poor, and tooth easily occurs and damages phenomenon, and traditional machining metal material utilization rate is lower, production efficiency compared with
It is low.
Summary of the invention
The purpose of the present invention is in view of the deficienciess of the prior art, the i.e. performance of cast member and machining part is poor,
And production efficiency is lower, provides a kind of manufacturing method for adjusting the speed three-jaw ring gear.
To achieve the goals above, it the present invention also provides a kind of manufacturing method for adjusting the speed three-jaw ring gear, is taken
Technical solution:
A kind of manufacturing method adjusting the speed three-jaw ring gear, including the following steps:
Step 1: proportion metal powder weighs the iron powder of 90 parts by weight, the nickel powder of 2 parts by weight, the copper powder of 1.5 parts by weight,
The sintering aid of the molybdenum powder of 0.5 parts by weight and 0.6 parts by weight, the sintering aid include the copper phosphide powder of 0.3 parts by weight
End and 0.3 parts by weight ferric oxide powders, by weighed powder be uniformly mixed form powder metallurgy powder, stay with to
With；
Step 2: compression moulding, by the powder metallurgy powder packed to set of molds in step 1, the set of molds includes
Fixed middle mould on the table, the lower die being fitted on middle mould bottom surface and is pressed in middle mould and lower die for powder metallurgy powder
Upper mold in the space of formation, the middle mould include horizontally disposed matrix, and vertical through-hole, the through-hole are offered on matrix
Internal diameter be 45.6mm, via depth is 14.55 ± 0.1mm, and through-hole wall lower edge offers annular groove, annular groove
Internal diameter is 48mm, and the groove width of annular groove is 1.5mm, and the lower die is plate-like, and lower die upper surface contradicts on middle mould lower surface
Via bottoms are sealed, the upper mold includes the bar being vertically arranged, and bar includes the punch segment of free end, intermediate changeover portion
And the linkage section of root, the diameter of linkage section are 46mm, and the diameter of changeover portion is 45.6mm, the length of changeover portion is 6.9 ±
0.1mm, three grooves being equipped with along bar axis direction are spaced apart on the changeover portion outer wall, and the groove includes a pair of of center
Symmetrical first groove and the second groove on two first groove middle changeover portions, the width of first groove are
7.92 ± 0.1mm, the length of the first groove are 6.9 ± 0.1mm, and the width of the second groove is 10.65 ± 0.1mm, the second groove
Length be 2.9 ± 0.1mm, the second groove extends from the free end of changeover portion to linkage section, and the punch segment diameter is
38.6mm, formed punch segment length are 7.55mm, and first groove floor is coplanar with punch segment outer wall with the second groove floor, formed punch
Section outer wall circumferential direction is equipped with the straight-tooth along punch segment length direction, and straight-tooth corresponding with groove extends in groove, is located at groove
Interior straight-tooth length is identical as corresponding groove length, in the space that powder metallurgy powder packed to lower die and middle mould are formed,
Then using hydraulic press by upper mold compress in mould, hydraulic press pressure is 50 megapascal, forms required three-jaw ring gear；
Step 3: compression moulding three-jaw ring gear is placed in the sintering furnace of protective atmosphere and carries out by the sintering of three-jaw ring gear
Sintering；Atmosphere is nitrogen, is vacuumized in sintering furnace, vacuum degree 0.06-0.07Mpa, and sintering furnace heating temperature is 880 DEG C ± 20
DEG C heat preservation 3 hours, copper phosphide powder react with copper powder, nickel powder and iron powder respectively in sintering process, generation Cu-P, Ni-P with
And tri- kinds of eutectic liquid phases of Fe-P, promote the material transport of alloying element and the progress of sintering diffusion process, copper phosphide powder changes
Become the institutional framework of sintered body, reduced the formation of granular ferrite in tissue, and homogenizes pearlite piece interlamellar spacing, sintering
Ferric oxide powder is evenly distributed between sintered body powder particle in the process, improves the cohesiveness between powder, accelerates sintering
Speed reduces sintering temperature, then naturally cools to 50 DEG C or less with sintering furnace and go out sintering furnace；
Step 4: the three-jaw ring gear in step 3 is placed on carbon nitrogen in glowing furnace and is total to by three-jaw ring gear Carburization Treatment
It seeps -240 minutes 180 minutes, carburizing temperature is 800 DEG C ± 20 DEG C；
Step 5: three-jaw ring gear tempering, operator start shaft furnace, vacuumize in shaft furnace, vacuum degree is
0.06-0.07Mpa, nitrogen charging gas shielded in shaft furnace, heating temperature is 150 DEG C ± 20 DEG C and keeps the temperature 3 hours in shaft furnace, then with well
Formula furnace naturally cools to 50 DEG C or less and goes out shaft furnace；
Step 6: polishing packaging, operator's self-test three-jaw ring gear, it is ensured that three-jaw ring gear flawless, intact material, nothing
Remaining meat, impulse- free robustness, if qualified, package encapsulation stored dry, on the contrary it is waste product.
Compared with prior art, the invention has the benefit that this method scientific and precise, improves three-jaw ring gear teeth
Intensity and comprehensive mechanical performance increase the ability of transmitting torque, improve the bearing capacity of dog, extend three-jaw ring gear
Service life.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of three-jaw ring gear in the present invention.
Fig. 2 is the cross-sectional view along Fig. 1 at A-A.
Specific embodiment
It is a kind of adjust the speed three-jaw ring gear manufacturing method include the following steps:
Step 1: proportion metal powder weighs the iron powder of 90 parts by weight, the nickel powder of 2 parts by weight, the copper powder of 1.5 parts by weight,
The sintering aid of the molybdenum powder of 0.5 parts by weight and 0.6 parts by weight, the sintering aid include the copper phosphide powder of 0.3 parts by weight
End and 0.3 parts by weight ferric oxide powders, by weighed powder be uniformly mixed form powder metallurgy powder, stay with to
With；
Step 2: compression moulding, by the powder metallurgy powder packed to set of molds in step 1, the set of molds includes
Fixed middle mould on the table, the lower die being fitted on middle mould bottom surface and is pressed in middle mould and lower die for powder metallurgy powder
The upper mold in space is formed, the middle mould includes horizontally disposed matrix, vertical through-hole is offered on matrix, the through-hole
Internal diameter is 45.6mm, and via depth is 14.55 ± 0.1mm, and through-hole wall lower edge offers annular groove, annular groove it is interior
Diameter is 48mm, and the groove width of annular groove is 1.5mm, and the lower die is plate-like, and lower die upper surface is contradicted will on middle mould lower surface
Via bottoms sealing, the upper mold includes the bar being vertically arranged, bar include the punch segment of free end, intermediate changeover portion with
And the linkage section of root, the diameter of linkage section are 46mm, and the diameter of changeover portion is 45.6mm, the length of changeover portion is 6.9 ±
0.1mm, three grooves being equipped with along bar axis direction are spaced apart on the changeover portion outer wall, and the groove includes a pair of of center
Symmetrical first groove and the second groove on two first groove middle changeover portions, the width of first groove are
7.92 ± 0.1mm, the length of the first groove are 6.9 ± 0.1mm, and the width of the second groove is 10.65 ± 0.1mm, the second groove
Length be 2.9 ± 0.1mm, the second groove extends from the free end of changeover portion to linkage section, and the punch segment diameter is
38.6mm, formed punch segment length are 7.55mm, and first groove floor is coplanar with punch segment outer wall with the second groove floor, formed punch
Section outer wall circumferential direction is equipped with the straight-tooth along punch segment length direction, and straight-tooth corresponding with groove extends in groove, is located at groove
Interior straight-tooth length is identical as corresponding groove length, in the space that powder metallurgy powder packed to lower die and middle mould are formed,
Then using hydraulic press by upper mold compress in mould, hydraulic press pressure is 50 megapascal, forms required three-jaw ring gear；
Step 3: compression moulding three-jaw ring gear is placed in the sintering furnace of protective atmosphere and carries out by the sintering of three-jaw ring gear
Sintering；Atmosphere is nitrogen, is vacuumized in sintering furnace, vacuum degree 0.06-0.07Mpa, and sintering furnace heating temperature is 880 DEG C ± 20
DEG C heat preservation 3 hours, copper phosphide powder react with copper powder, nickel powder and iron powder respectively in sintering process, generation Cu-P, Ni-P with
And tri- kinds of eutectic liquid phases of Fe-P, promote the material transport of alloying element and the progress of sintering diffusion process, copper phosphide powder changes
Become the institutional framework of sintered body, reduced the formation of granular ferrite in tissue, and homogenizes pearlite piece interlamellar spacing, sintering
Ferric oxide powder is evenly distributed between sintered body powder particle in the process, improves the cohesiveness between powder, accelerates sintering
Speed reduces sintering temperature, then naturally cools to 50 DEG C or less with sintering furnace and go out sintering furnace；
Step 4: the three-jaw ring gear in step 3 is placed on carbon nitrogen in glowing furnace and is total to by three-jaw ring gear Carburization Treatment
It seeps -240 minutes 180 minutes, carburizing temperature is 800 DEG C ± 20 DEG C；
Step 5: three-jaw ring gear tempering, operator start shaft furnace, vacuumize in shaft furnace, vacuum degree is
0.06-0.07Mpa, nitrogen charging gas shielded in shaft furnace, heating temperature is 150 DEG C ± 20 DEG C and keeps the temperature 3 hours in shaft furnace, then with well
Formula furnace naturally cools to 50 DEG C or less and goes out shaft furnace；
Step 6: polishing packaging, operator's self-test three-jaw ring gear, it is ensured that three-jaw ring gear flawless, intact material, nothing
Remaining meat, impulse- free robustness, if qualified, package encapsulation stored dry, on the contrary it is waste product.
The present invention is not limited to the above embodiments, on the basis of technical solution disclosed by the invention, the skill of this field
For art personnel according to disclosed technology contents, one can be made to some of which technical characteristic by not needing creative labor
A little replacements and deformation, these replacements and deformation are within the scope of the invention.
Claims (1)
1. a kind of manufacturing method for adjusting the speed three-jaw ring gear, characterized in that it comprises the following steps:
Step 1: proportion metal powder weighs the iron powder of 90 parts by weight, the nickel powder of 2 parts by weight, the copper powder of 1.5 parts by weight, and 0.5
The sintering aid of the molybdenum powder of parts by weight and 0.6 parts by weight, the sintering aid include the copper phosphide powder of 0.3 parts by weight with
And 0.3 parts by weight ferric oxide powder, by weighed powder be uniformly mixed form powder metallurgy powder, stay with stand-by；
Step 2: compression moulding, by the powder metallurgy powder packed to set of molds in step 1, the set of molds includes fixing
Middle mould on the table, the lower die being fitted on middle mould bottom surface and is pressed in middle mould for powder metallurgy powder and is formed with lower die
Space in upper mold, the middle mould includes horizontally disposed matrix, offer vertical through-hole on matrix, the through-hole it is interior
Diameter is 45.6mm, and via depth is 14.55 ± 0.1mm, and through-hole wall lower edge offers annular groove, the internal diameter of annular groove
Groove width for 48mm, annular groove is 1.5mm, and the lower die is plate-like, and lower die upper surface is contradicted will lead on middle mould lower surface
Hole sealed bottom, the upper mold include the bar being vertically arranged, bar include the punch segment of free end, intermediate changeover portion and
The linkage section of root, the diameter of linkage section are 46mm, and the diameter of changeover portion is 45.6mm, the length of changeover portion is 6.9 ±
0.1mm, three grooves being equipped with along bar axis direction are spaced apart on the changeover portion outer wall, and the groove includes a pair of of center
Symmetrical first groove and the second groove on two first groove middle changeover portions, the width of first groove are
7.92 ± 0.1mm, the length of the first groove are 6.9 ± 0.1mm, and the width of the second groove is 10.65 ± 0.1mm, the second groove
Length be 2.9 ± 0.1mm, the second groove extends from the free end of changeover portion to linkage section, and the punch segment diameter is
38.6mm, formed punch segment length are 7.55mm, and first groove floor is coplanar with punch segment outer wall with the second groove floor, formed punch
Section outer wall circumferential direction is equipped with the straight-tooth along punch segment length direction, and straight-tooth corresponding with groove extends in groove, is located at groove
Interior straight-tooth length is identical as corresponding groove length, in the space that powder metallurgy powder packed to lower die and middle mould are formed,
Then using hydraulic press by upper mold compress in mould, hydraulic press pressure is 50 megapascal, forms required three-jaw ring gear；
Step 3: compression moulding three-jaw ring gear is placed in the sintering furnace of protective atmosphere and is sintered by the sintering of three-jaw ring gear；
Atmosphere is nitrogen, is vacuumized in sintering furnace, vacuum degree 0.06-0.07Mpa, and sintering furnace heating temperature is 880 DEG C of ± 20 DEG C of guarantors
Temperature 3 hours, copper phosphide powder react with copper powder, nickel powder and iron powder respectively in sintering process, generation Cu-P, Ni-P and
Tri- kinds of eutectic liquid phases of Fe-P, promote the material transport of alloying element and the progress of sintering diffusion process, and copper phosphide powder changes
The institutional framework of sintered body, reduces the formation of granular ferrite in tissue, and homogenizes pearlite piece interlamellar spacing, sintered
Ferric oxide powder is evenly distributed between sintered body powder particle in journey, improves the cohesiveness between powder, accelerates sintering speed
Degree reduces sintering temperature, then naturally cools to 50 DEG C or less with sintering furnace and go out sintering furnace；
Step 4: the three-jaw ring gear in step 3 is placed on carbo-nitriding 180 in glowing furnace by three-jaw ring gear Carburization Treatment
- 240 minutes minutes, carburizing temperature are 800 DEG C ± 20 DEG C；
Step 5: three-jaw ring gear tempering, operator start shaft furnace, vacuumize in shaft furnace, vacuum degree 0.06-
0.07Mpa, nitrogen charging gas shielded in shaft furnace, heating temperature is 150 DEG C ± 20 DEG C and keeps the temperature 3 hours in shaft furnace, then with shaft furnace
It naturally cools to 50 DEG C or less and goes out shaft furnace；
Step 6: polishing packaging, operator's self-test three-jaw ring gear, it is ensured that three-jaw ring gear flawless, intact material, nothing left
Meat, impulse- free robustness, if qualified, package encapsulation stored dry, on the contrary it is waste product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810775126.4A CN109128189B (en) | 2018-07-16 | 2018-07-16 | Manufacturing method of speed-regulating three-jaw inner gear ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810775126.4A CN109128189B (en) | 2018-07-16 | 2018-07-16 | Manufacturing method of speed-regulating three-jaw inner gear ring |
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| CN109128189A true CN109128189A (en) | 2019-01-04 |
| CN109128189B CN109128189B (en) | 2021-08-27 |
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ID=64800378
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|---|---|---|---|
| CN201810775126.4A Active CN109128189B (en) | 2018-07-16 | 2018-07-16 | Manufacturing method of speed-regulating three-jaw inner gear ring |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109706372A (en) * | 2019-02-18 | 2019-05-03 | 益阳市再超粉末冶金有限公司 | A kind of sintering method of powdered metallurgical material gear |
| CN110004373A (en) * | 2019-02-21 | 2019-07-12 | 益阳市再超粉末冶金有限公司 | A method of gear is manufactured with antifriction material of powder metallurgy |
| CN110508822A (en) * | 2019-09-27 | 2019-11-29 | 苏州唯创特精密机械有限公司 | A kind of gear ring preparation process |
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| CN110004373A (en) * | 2019-02-21 | 2019-07-12 | 益阳市再超粉末冶金有限公司 | A method of gear is manufactured with antifriction material of powder metallurgy |
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|---|---|
| CN109128189B (en) | 2021-08-27 |
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Address after: 225000 No. 90 Lotus West Road, Jiangyang Industrial Park, Hangjiang District, Yangzhou City, Jiangsu Province Applicant after: Yangzhou Haichang new materials Limited by Share Ltd Address before: 225200 No. 88 Canal South Road, Hangjiang District, Yangzhou City, Jiangsu Province Applicant before: Yangzhou Haichang new materials Limited by Share Ltd |
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