CN107214340A - A kind of preparation method of powder metallurgical gear or belt wheel - Google Patents
A kind of preparation method of powder metallurgical gear or belt wheel Download PDFInfo
- Publication number
- CN107214340A CN107214340A CN201710357199.7A CN201710357199A CN107214340A CN 107214340 A CN107214340 A CN 107214340A CN 201710357199 A CN201710357199 A CN 201710357199A CN 107214340 A CN107214340 A CN 107214340A
- Authority
- CN
- China
- Prior art keywords
- intermediate layer
- inner ring
- external toothing
- belt wheel
- gear
- 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.)
- Granted
Links
Classifications
-
- 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
- B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
- B22F7/06—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools
-
- 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
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
-
- 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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/20—Ferrous alloys, e.g. steel alloys containing chromium with copper
-
- 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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
-
- 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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with 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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
-
- 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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
Abstract
The present invention relates to the preparation method of a kind of powder metallurgical gear or belt wheel, the preparation method of the present invention is provided with the intermediate layer of porous sintered ferroalloy between external toothing and inner ring, and be attached external toothing with inner ring by the intermediate layer, power part suffered by external toothing is delivered to inner ring by cemented iron alloy interlayer, transmitted again by the axle installed in the middle of gear or belt wheel, reduce vibration, improve the reliability that external toothing is connected with inner ring, improve the safety coefficient of part, so that vibration damping primitive is high with metal part bond strength, effectively increase the mechanical performance of gear or belt wheel, improve the safety coefficient and service life of gear or belt wheel, reduce the vibration of gear or belt wheel.
Description
Technical field
The present invention relates to the preparing technical field of powdered metal parts, the system of a kind of powder metallurgical gear or belt wheel is referred specifically to
Preparation Method.
Background technology
The development trend of automobile industry is reduction energy consumption, reduces discharge, especially traditional fuel-engined vehicle.Therefore, reduce
The discharge capacity of automobile, the performance of lifting engine just seems particularly main.European Union's regulation car look forward to the year two thousand twenty is sold 95% it is new
Car, CO2 emission must reach every kilometer of average level for being no more than 95 grams.In this context, three-cylinder engine will be into
For main force's engine of industry, be on the one hand depot in order to tackle the energy-saving and emission-reduction policy of countries in the world, increase itself product
Strength；On the other hand it is that the engine that technical conditions allow three cylinders to be laid out occurs.By combining other technologies, reach three cylinder machines
Arrive or more than the power of four-cylinder, so as to realize that reduction energy consumption reduces the purpose of discharge.
At present, three-cylinder engine is due to operating imbalance, and engine noise itself is big, and vibration is big, causes automobile passenger
Comfortableness is poor.In order to reduce shake, vibration, the imbalance of design balance axial offset cylinder body is often needed, to give full play to three cylinders
The saving of machine, the advantage of low cost.Balance shaft system is operated using tooth (band) the wheel kind of drive, is rotated and driven by bent axle
Connected balance shaft sliding tooth (band) wheel, balance shaft driven gear (band) wheel and balance shaft operation.Singly balanced axle can be balanced and accounted for
The whole sizable single order vibration of vibration ratio, make engine vibration be improved significantly.
In the prior art, tooth (band) wheel of balance shaft is general using steel processing, tooth (band) the wheel noise of steel processing is big,
Process length, cost are high.Therefore, manufacture is taken turns for current tooth (band), awaits further improved.
The content of the invention
The technical problem to be solved by the invention for the present situation of prior art is to provide a kind of process is short, cost is low
The preparation method of powder metallurgical gear or belt wheel, gear or belt wheel vibration damping primitive and metal part bond strength prepared by this method
Height, effectively increases the mechanical performance of gear or belt wheel, reduces the vibration of gear or belt wheel.
The present invention solve the technical scheme that is used of above-mentioned technical problem for：A kind of preparation of powder metallurgical gear or belt wheel
Method, it is characterised in that comprise the following steps：
(1) structure design of gear or belt wheel：Described gear or belt wheel include external toothing, inner ring and intermediate layer, described
Have on the outer surface of external toothing and be provided with front and rear insertion simultaneously in the middle part of the gear teeth of several circumferentially spaced arrangements, the external toothing
Be configured to the mounting hole of circle, offer in the middle of the inner ring axially through axis hole, be further opened with multiple enclose in the inner ring
Around the spaced apart through hole of the axis hole, the inner ring is placed in the mounting hole of external toothing and formed between the inwall of external toothing
There is a gap, the intermediate layer is located in the gap；
In percentage by weight, the external toothing material composition be 0~5%Cu, 0~1.5%C, 0~5.0%Ni,
0~3.0%Mo, 0~3.0%Cr, impurity content be less than 2%, and surplus Fe；
In percentage by weight, the material composition of the inner ring is 0~5%Cu, 0~1.5%C, 0~4.0%Ni, 0
~3.0%Mo, 0~3.0%Cr, impurity content be less than 2%, and surplus Fe；
In percentage by weight, the material composition in the intermediate layer is 0~10%Cu, and 0~1.0%C, impurity content is small
In the Fe of 2%, and surplus；
(2) material powder in external toothing, inner ring, intermediate layer is sufficiently mixed respectively；
(3) material powder in external toothing, inner ring, intermediate layer is carried out compression molding and obtains external toothing green compact, inner ring respectively
Green compact, intermediate layer green compact；
(4) external toothing green compact, inner ring green compact, intermediate layer green compact are respectively placed in continuous fritting furnace and are sintered, sintered
Temperature is 1050~1250 DEG C, and soaking time is more than 20 minutes；
(5) being nested with and fit together from outside to inside by external toothing, intermediate layer, inner ring obtained by step (4)；
(6) gear or belt wheel obtained by step (5) are heat-treated；
(7) gear or belt wheel obtained by step (6) are finished, to obtain final dimensional accuracy.
Preferably, the first groove axially extended is offered on the inwall of the external toothing, corresponding, the inner ring
Outer peripheral face on be provided with the second groove axially extended, and to be less than first recessed for the length of second groove in a circumferential direction
The length of groove in a circumferential direction.Using such structure, can strengthen bonding strength between intermediate layer and external toothing, inner ring and
Reliability, effectively increases the mechanical performance of gear or belt wheel, the vibration of reduction gear or belt wheel.
Preferably, in percentage by weight, the material composition in the intermediate layer is 3%~8%Cu, 0.2%~0.7%
C, impurity content be less than 2%, and surplus Fe.
Preferably, the external toothing, inner ring compression molding pressure be 500~800MPa, shaping density be 6.8~
7.3g/cm3；Compression molding 100~the 600MPa of pressure, 4.0~6.6g/cm of compact density in the intermediate layer3。
Preferably, the protective atmosphere of sintering is nitrogen and hydrogen mixture atmosphere in step (4).
Preferably, external toothing, inner ring and intermediate layer are assembled using cold pressing dress or hot press-fit approach in step (5).
Further preferably, when being filled using cold pressing, first intermediate layer is cooled down, then the intermediate layer of cooling meat is inserted in
In external toothing, after recovering room temperature after intermediate layer, then the inner ring after cooling is inserted in intermediate layer；When being filled using hot pressing, first by
Interbed is heated, and then inner ring is inserted in intermediate layer, after being cooled to room temperature after intermediate layer, then external toothing is heated, and will
It is inserted in external toothing in intermediate layer.
Compared with prior art, the advantage of the invention is that：The present invention is provided with porous burn between external toothing and inner ring
The intermediate layer of ferroalloy is tied, and is attached external toothing with inner ring by the intermediate layer, the power part suffered by external toothing passes through
Cemented iron alloy interlayer is delivered to inner ring, then is transmitted by the axle installed in the middle of gear or belt wheel, reduces vibration, carries
The reliability that external toothing is connected with inner ring has been risen, the safety coefficient of part is improved so that vibration damping primitive is combined with metal part
Intensity is high, effectively increases the mechanical performance of gear or belt wheel, improves the safety coefficient and service life of gear or belt wheel, drops
The low vibration of gear or belt wheel.
Brief description of the drawings
Fig. 1 is the structural representation of middle gear of the embodiment of the present invention or belt wheel；
Fig. 2 is the profile in the A-A directions along along Fig. 1；
Fig. 3 is the structural representation of external toothing in the embodiment of the present invention；
Fig. 4 is the profile in the B-B directions along along Fig. 3；
Fig. 5 is the structural representation in intermediate layer in the embodiment of the present invention；
Fig. 6 is the profile in the C-C directions along along Fig. 5；
Fig. 7 is the structural representation of inner ring in the embodiment of the present invention；
Fig. 8 is the profile in the D-D directions along along Fig. 7.
Embodiment
The present invention is described in further detail below in conjunction with accompanying drawing embodiment.
As shown in Fig. 1~8, gear of the invention or belt wheel are included outside external toothing 1, inner ring 2 and intermediate layer 3, external toothing 1
There are the gear teeth 11 of several circumferentially spaced arrangements, the middle part of external toothing 1 is provided with front and rear insertion and is configured to circle on surface
Mounting hole 12, offer in the middle of inner ring 2 axially through axis hole 21, multiple surround between the axis hole 21 is further opened with inner ring 2
Every the through hole 22 of arrangement, inner ring 2 is placed in the mounting hole 12 of external toothing 1 and is formed between the inwall of external toothing 1 between one
Gap 10, intermediate layer 3 is located in the gap 10.It can also offer and axially extend on the inwall of external toothing 1 in the present embodiment
The first groove 13, first groove 13 is three and along the circumferentially-spaced arrangement of external toothing 1, corresponding, the outer peripheral face of inner ring 2
On be provided with the second groove 23 axially extended, and the length of the second groove 23 in a circumferential direction is less than the first groove 13 in circle
Length in circumferential direction, the number of the second groove 23 is equal with the number of the first groove 13.
Embodiment 1：
The preparation method of the powder metallurgical gear of the present embodiment, comprises the following steps：
(1) structure design of gear：In percentage by weight, external toothing material composition be 2%Cu, 0.8%C,
1.0%Ni, 0.5%Mo, 1.5%Cr, and surplus Fe；
In percentage by weight, the material of inner ring is constituted as 2%Cu, 0.3%C, and surplus Fe；
In percentage by weight, the material in intermediate layer is constituted as 3%Cu, 0.2%C, and surplus Fe；
(2) material powder in external toothing, inner ring, intermediate layer is sufficiently mixed respectively in batch mixer, until without meat
The visible reunion of eye and segregation；
(3) material powder in external toothing, inner ring, intermediate layer is carried out compression molding and obtains external toothing green compact, inner ring respectively
Green compact, intermediate layer green compact；Wherein, external toothing, the compression molding pressure of inner ring are 500MPa, and shaping density is 6.8g/cm3；In
Compression molding the pressure 100MPa, compact density 4.0g/cm of interbed3；
(4) external toothing green compact, inner ring green compact, intermediate layer green compact are respectively placed in continuous fritting furnace and are sintered, sintered
Temperature is 1250 DEG C, and soaking time is 70 minutes；Protective atmosphere is nitrogen and hydrogen mixture atmosphere；
(5) by external toothing, intermediate layer, inner ring obtained by step (4) using cold press-fit approach being nested with and be assembled in from outside to inside
Together；
(6) gear obtained by step (5) is heat-treated；
(7) gear obtained by step (6) is finished, to obtain final dimensional accuracy.
Embodiment 2：
The preparation method of the powder metallurgical gear of the present embodiment, comprises the following steps：
(1) structure design of gear：In percentage by weight, external toothing material composition be 0.8%C, 2.0%Ni,
1.5%Cr, and surplus Fe；
In percentage by weight, the material composition of inner ring is 2%Cu, 0.3%C, 1.0%Ni, 1.5%Cr, Yi Jiyu
The Fe of amount；
In percentage by weight, the material in intermediate layer is constituted as 8%Cu, 0.7%C, and surplus Fe；
(2) material powder in external toothing, inner ring, intermediate layer is sufficiently mixed respectively in batch mixer, until without meat
The visible reunion of eye and segregation；
(3) material powder in external toothing, inner ring, intermediate layer is carried out compression molding and obtains external toothing green compact, inner ring respectively
Green compact, intermediate layer green compact；Wherein, external toothing, the compression molding pressure of inner ring are 800MPa, and shaping density is 7.3g/cm3；In
Compression molding the pressure 600MPa, compact density 6.6g/cm of interbed3；
(4) external toothing green compact, inner ring green compact, intermediate layer green compact are respectively placed in continuous fritting furnace and are sintered, sintered
Temperature is 1050 DEG C, and soaking time is 80 minutes；Protective atmosphere is nitrogen and hydrogen mixture atmosphere；
(5) by external toothing, intermediate layer, inner ring obtained by step (4) using hot press-fit approach being nested with and be assembled in from outside to inside
Together；
(6) gear obtained by step (5) is heat-treated；
(7) gear obtained by step (6) is finished, to obtain final dimensional accuracy.
Embodiment 3：
The preparation method of the powder metallurgy belt wheel of the present embodiment, comprises the following steps：
(1) structure design of belt wheel：In percentage by weight, external toothing material composition be 0.8C, 2.0%Ni,
1.5%Mo, and surplus Fe；
In percentage by weight, the material of inner ring is constituted as 2%Cu, 0.3%C, and surplus Fe；
In percentage by weight, the material in intermediate layer is constituted as 5%Cu, 0.2%C, and surplus Fe；
(2) material powder in external toothing, inner ring, intermediate layer is sufficiently mixed respectively in batch mixer, until without meat
The visible reunion of eye and segregation；
(3) material powder in external toothing, inner ring, intermediate layer is carried out compression molding and obtains external toothing green compact, inner ring respectively
Green compact, intermediate layer green compact；Wherein, external toothing, the compression molding pressure of inner ring are 700MPa, and shaping density is 7.1g/cm3；In
Compression molding the pressure 300MPa, compact density 5.0g/cm of interbed3；
(4) external toothing green compact, inner ring green compact, intermediate layer green compact are respectively placed in continuous fritting furnace and are sintered, sintered
Temperature is 1150 DEG C, and soaking time is 60 minutes；Protective atmosphere is nitrogen and hydrogen mixture atmosphere；
(5) by external toothing, intermediate layer, inner ring obtained by step (4) using hot press-fit approach being nested with and be assembled in from outside to inside
Together；
(6) belt wheel obtained by step (5) is heat-treated；
(7) belt wheel obtained by step (6) is finished, to obtain final dimensional accuracy.
Claims (7)
1. the preparation method of a kind of powder metallurgical gear or belt wheel, it is characterised in that comprise the following steps：
(1) structure design of gear or belt wheel：Described gear or belt wheel include external toothing, inner ring and intermediate layer, the external tooth
Have on the outer surface of circle and be provided with front and rear insertion in the middle part of the gear teeth of several circumferentially spaced arrangements, the external toothing and shape
For circular mounting hole, offered in the middle of the inner ring axially through axis hole, be further opened with the inner ring multiple around should
The spaced apart through hole of axis hole, the inner ring is placed in the mounting hole of external toothing and is formed with one between the inwall of external toothing
Gap, the intermediate layer is located in the gap；
In percentage by weight, the external toothing material composition for 0~5%Cu, 0~1.5%C, 0~5.0%Ni, 0~
3.0%Mo, 0~3.0%Cr, impurity content be less than 2%, and surplus Fe；
In percentage by weight, the inner ring material composition for 0~5%Cu, 0~1.5%C, 0~4.0%Ni, 0~
3.0%Mo, 0~3.0%Cr, impurity content be less than 2%, and surplus Fe；
In percentage by weight, the material composition in the intermediate layer is 0~10%Cu, and 0~1.0%C, impurity content is less than
2%, and surplus Fe；
(2) material powder in external toothing, inner ring, intermediate layer is sufficiently mixed respectively；
(3) by external toothing, inner ring, intermediate layer material powder carry out respectively compression molding obtain external toothing green compact, inner ring green compact,
Intermediate layer green compact；
(4) external toothing green compact, inner ring green compact, intermediate layer green compact are respectively placed in continuous fritting furnace and are sintered, sintering temperature
For 1050~1250 DEG C, soaking time is more than 20 minutes；
(5) being nested with and fit together from outside to inside by external toothing, intermediate layer, inner ring obtained by step (4)；
(6) gear or belt wheel obtained by step (5) are heat-treated；
(7) gear or belt wheel obtained by step (6) are finished, to obtain final dimensional accuracy.
2. the preparation method of powder metallurgical gear according to claim 1 or belt wheel, it is characterised in that：The external toothing
The first groove axially extended is offered on inwall, it is corresponding, axially extended is provided with the outer peripheral face of the inner ring
Two grooves, and the length of second groove in a circumferential direction is less than the length of the first groove in a circumferential direction.
3. the preparation method of powder metallurgical gear according to claim 1 or belt wheel, it is characterised in that：According to weight percent
Than meter, the material composition in the intermediate layer is 3%~8%Cu, and 0.2%~0.7%C, impurity content is less than 2%, and surplus
Fe.
4. the preparation method of powder metallurgical gear according to claim 1 or belt wheel, it is characterised in that：The external toothing,
The compression molding pressure of inner ring is 500~800MPa, and shaping density is 6.8~7.3g/cm3；The compression molding in the intermediate layer
100~600MPa of pressure, 4.0~6.6g/cm of compact density3。
5. the preparation method of powder metallurgical gear according to claim 1 or belt wheel, it is characterised in that：Burnt in step (4)
The protective atmosphere of knot is nitrogen and hydrogen mixture atmosphere.
6. the preparation method of powder metallurgical gear according to claim 1 or belt wheel, it is characterised in that：Step is adopted in (5)
External toothing, inner ring and intermediate layer are assembled with cold pressing dress or hot press-fit approach.
7. the preparation method of powder metallurgical gear according to claim 6 or belt wheel, it is characterised in that：Using cold pressing dress
When, first intermediate layer is cooled down, then the intermediate layer of cooling meat is inserted in external toothing, after recovering room temperature after intermediate layer,
The inner ring after cooling is inserted in intermediate layer again；When being filled using hot pressing, first intermediate layer is heated, during then inner ring is inserted in
In interbed, after being cooled to room temperature after intermediate layer, then external toothing heated, and intermediate layer is inserted in external toothing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710357199.7A CN107214340B (en) | 2017-05-19 | 2017-05-19 | A kind of preparation method of powder metallurgical gear or belt wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710357199.7A CN107214340B (en) | 2017-05-19 | 2017-05-19 | A kind of preparation method of powder metallurgical gear or belt wheel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107214340A true CN107214340A (en) | 2017-09-29 |
| CN107214340B CN107214340B (en) | 2019-02-26 |
Family
ID=59944980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710357199.7A Active CN107214340B (en) | 2017-05-19 | 2017-05-19 | A kind of preparation method of powder metallurgical gear or belt wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107214340B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08159240A (en) * | 1994-11-30 | 1996-06-21 | Nippon Steel Corp | Gear and manufacture thereof |
| CN101663508A (en) * | 2007-04-18 | 2010-03-03 | 诺伊曼尔·泰克福尔控股有限公司 | Composite body |
| CN104728389A (en) * | 2015-01-22 | 2015-06-24 | 南京航空航天大学 | Vibration reduction light-weight gear formed through sintering bonding |
| CN105665711A (en) * | 2016-01-29 | 2016-06-15 | 东睦新材料集团股份有限公司 | Preparation method for powder metallurgy rotating hub gear |
| CN205806326U (en) * | 2016-06-29 | 2016-12-14 | 神龙汽车有限公司 | A kind of balance shaft apparatus of Novel belt vibration-reduction gear |
| CN106541139A (en) * | 2015-09-18 | 2017-03-29 | 东睦新材料集团股份有限公司 | A kind of preparation method of P/M cam |
-
2017
- 2017-05-19 CN CN201710357199.7A patent/CN107214340B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08159240A (en) * | 1994-11-30 | 1996-06-21 | Nippon Steel Corp | Gear and manufacture thereof |
| CN101663508A (en) * | 2007-04-18 | 2010-03-03 | 诺伊曼尔·泰克福尔控股有限公司 | Composite body |
| CN104728389A (en) * | 2015-01-22 | 2015-06-24 | 南京航空航天大学 | Vibration reduction light-weight gear formed through sintering bonding |
| CN106541139A (en) * | 2015-09-18 | 2017-03-29 | 东睦新材料集团股份有限公司 | A kind of preparation method of P/M cam |
| CN105665711A (en) * | 2016-01-29 | 2016-06-15 | 东睦新材料集团股份有限公司 | Preparation method for powder metallurgy rotating hub gear |
| CN205806326U (en) * | 2016-06-29 | 2016-12-14 | 神龙汽车有限公司 | A kind of balance shaft apparatus of Novel belt vibration-reduction gear |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107214340B (en) | 2019-02-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109695004B (en) | Manufacturing method of iron-based powder metallurgy part | |
| JP3651420B2 (en) | Alloy steel powder for powder metallurgy | |
| KR20050077492A (en) | Method to make sinter-hardened powder metal parts with complex shapes | |
| CN102691772A (en) | Gear of starting motor of automobile engine and preparation method of gear | |
| CN107237877A (en) | A kind of preparation method of powder metallurgical gear or belt wheel | |
| CN105051226A (en) | Slide bearing | |
| CN105200322A (en) | High-strength automobile part powder metallurgy component and preparation method thereof | |
| CN109236650A (en) | A kind of rotor type cold compressor pump housing | |
| CN106541141A (en) | A kind of manufacture method of P/M cam | |
| JP4702758B2 (en) | Sintered sprocket for silent chain and manufacturing method thereof | |
| CN107262723B (en) | A kind of preparation method of powder metallurgical gear or belt wheel | |
| CN107214340B (en) | A kind of preparation method of powder metallurgical gear or belt wheel | |
| CN105234413A (en) | New energy electric vehicle transmission bevel wheel and manufacturing methods for new energy electric vehicle transmission bevel wheel | |
| JP6149718B2 (en) | Iron-based sintered alloy, method for producing the same, and high-carbon iron-based powder | |
| JP6528899B2 (en) | Method of manufacturing mixed powder and sintered body for powder metallurgy | |
| CN107262720B (en) | A kind of manufacturing method of powder metallurgical gear or belt wheel | |
| CN107262722B (en) | A kind of manufacturing method of powder metallurgical gear or belt wheel | |
| CN108620591A (en) | A kind of high-performance powder forging gear and preparation method thereof | |
| CN107262721B (en) | A kind of manufacturing method of powder metallurgical gear or belt wheel | |
| CN105240487A (en) | Timing belt wheel for battery electric vehicle engine crankshaft and manufacturing method of timing belt wheel | |
| WO2018143088A1 (en) | Mixed powder for powder metallurgy, sintered body, and method for producing sintered body | |
| CN109457190A (en) | A kind of WC particle enhancing Fe base powder metallurgy material and preparation method thereof | |
| JP7060101B2 (en) | Alloy steel powder for powder metallurgy, iron-based mixed powder for powder metallurgy, and sintered body | |
| JPS61264105A (en) | Production of high-strength sintered member | |
| JP6627856B2 (en) | Method for producing powder mixture for powder metallurgy and sintered body |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |