CN108085637A - Improved soft nitriding furnace shove charge frock and soft-nitriding process - Google Patents
Improved soft nitriding furnace shove charge frock and soft-nitriding process Download PDFInfo
- Publication number
- CN108085637A CN108085637A CN201711482773.8A CN201711482773A CN108085637A CN 108085637 A CN108085637 A CN 108085637A CN 201711482773 A CN201711482773 A CN 201711482773A CN 108085637 A CN108085637 A CN 108085637A
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- China
- Prior art keywords
- inner ring
- shove charge
- montant
- collar
- frock
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- 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
- C23C8/28—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 more than one element being applied in one step
- C23C8/30—Carbo-nitriding
- C23C8/32—Carbo-nitriding of ferrous surfaces
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
- Heat Treatment Of Articles (AREA)
- Furnace Charging Or Discharging (AREA)
Abstract
The improved soft nitriding furnace shove charge frock of the present invention includes annular chassis, collar and stand.Annular chassis includes the conllinear outer shroud of central shaft and inner ring and more spokes being fixedly connected between inner ring and outer rings.Collar is identical with inner ring shape and central shaft is collinearly arranged at the top of inner ring, and hoisting ring is provided on the upside of collar.Stand is fixedly connected between the downside of collar and inner ring, stand includes multiple montants, multiple hanging rods are provided on each montant, multiple montants are evenly distributedly arranged between collar and inner ring, it montant of each hanging rod where it and extends outwardly, the extended line inwardly on multiple montants positioned at conplane hanging rod is intersected in the central shaft of inner ring.The present invention also proposes a kind of soft-nitriding process based on this shove charge frock.The present invention can increase the shove charge quantity of frock, and charge and discharge operations are more convenient, so as to improve the processing efficiency of soft-nitriding process.
Description
Technical field
The present invention relates to gear heat treatment processing equipment field, more particularly to a kind of improved soft nitriding furnace shove charge frock
And soft-nitriding process.
Background technology
To shorten the nitridation cycle and making limitation of the nitriding process from steel grade, develop in recent years on the basis of former nitriding process
Soft-nitriding process.Tufftride is substantially the low-temperature nitrocarburizing based on nitriding, while the nitrogen-atoms of steel penetrates into, is also had
A small amount of carbon atom penetrates into, and for handling result compared with general gas flow nitrogenizes, nitrided layer hardness is relatively low, and brittleness is smaller, therefore referred to as soft
Nitridation.
Frock in heat treatment process can be divided into two major class of universal fixture and special tooling.Special tooling is with workpiece
It based on specific aim, is designed and makes with reference to the type of furnace, to meet the frock clamp of the special stowage requirement of workpiece.For some
Large heavy workpiece, for convenience into coming out of the stove and some workpiece will keep vertically heating with vertical quenching in heat treatment
It needs, shove charge frock is often designed according to the type of furnace.
Existing soft nitriding furnace shove charge frock mostly using internal hanging type, due to frock own vol be limited and own wt compared with
Greatly, therefore the shove charge quantity of internal hanging type frock and shove charge weight are smaller, and it reduce the processing efficiencies of soft-nitriding process, improve
Production cost.
The content of the invention
For above-mentioned technical problem, the present invention provides a kind of soft nitriding furnace shove charge frock for improving production efficiency and is based on
This soft-nitriding process.
To achieve the object of the present invention, improved soft nitriding furnace shove charge frock of the invention include annular chassis, collar and
Stand.Annular chassis includes outer shroud, inner ring and Duo Gen spokes, and outer shroud is conllinear with the central shaft of inner ring, and more spokes are around inner ring
It arranges and is fixedly connected between inner ring and outer rings, outer shroud, inner ring and Duo Gen spokes are in same plane；Collar and inner ring shape
Top that is identical and being arranged at inner ring, collar is conllinear with the central shaft of inner ring, and hoisting ring is provided on the upside of collar；Stand is fixed
It is connected between the downside of collar and inner ring, stand includes multiple montants, and multiple hanging rods, multiple montants are provided on each montant
It is evenly distributedly arranged between collar and inner ring, montant of each hanging rod where it and extends outwardly, multiple montants
The upper extended line inwardly positioned at conplane hanging rod is intersected in the central shaft of inner ring, and each hanging rod is where outer shroud in plane
Projection is all located between inner ring and outer rings.
It is preferred that the extended line of more spokes is intersected in the central shaft of inner ring；Further, the length of each hanging rod is less than
The length of every spoke.
It is preferred that stand includes 12 montants, 12 montant annular arrays are between collar and inner ring, each montant
On be provided at least ten hanging rods.
It is preferred that the multiple hanging rods set on each montant are mutually parallel.
It is preferred that each montant is mutually parallel, and multiple montants are all parallel to the central shaft of inner ring.
It is preferred that each hanging rod includes the fixing end for connecting montant and the free end compared with fixing end；Further
Ground has convex-concave surface between the fixing end of each hanging rod and free end；Or further, the free end of each hanging rod is set
There is hook.
Another object according to the present invention, a kind of improved soft-nitriding process include the following steps：
By workpiece in shove charge frock as described above；And；
Shove charge frock equipped with workpiece is sent into soft nitriding furnace and carries out soft-nitriding process, wherein, the heating-up time of tufftride is
10min, evacuation time 105-115min ooze by force the time for 235-245min, diffusion time 28-32min.
Compared with prior art, soft nitriding furnace shove charge tool structure of the invention uses external hanging type annular framework, can increase
The shove charge quantity of frock, and charge and discharge operations are more convenient, so as to improve the processing efficiency of soft-nitriding process, reduce and are produced into
This.
Description of the drawings
Fig. 1 is the structure diagram of the improved soft nitriding furnace shove charge frock of one embodiment of the invention.
Specific embodiment
To make to have further understanding to the purpose of the present invention, construction, feature and its function, hereby coordinate embodiment detailed
It is described as follows.
Fig. 1 is referred to, Fig. 1 is the schematic diagram of the soft nitriding furnace shove charge tool structure of one embodiment of the invention.Soft nitriding furnace
Shove charge tool structure 100 includes annular chassis 1, collar 2 and stand 3.
Annular chassis 1 includes outer shroud 11, inner ring 12 and Duo Gen spokes 13, and outer shroud 11 is conllinear with the central shaft of inner ring 12, more
Root spoke 13 is arranged and is fixedly connected between inner ring 12 and outer shroud 11 around inner ring 12, outer shroud 11, inner ring 12 and Duo Gen spokes
13 are in same plane.In one embodiment, the extended line of more spokes 13 is intersected in the central shaft of inner ring 12.Preferably, it is more
The quantity of root spoke 13 is five or the six roots of sensation.Above-mentioned design can take into account the fixing of structure itself and mitigate dead weight as much as possible.
Collar 2 is identical with 12 shape of inner ring and is arranged at the top of inner ring 12, and collar 2 is conllinear with the central shaft of inner ring 12,
The upside of collar 2 is provided with hoisting ring 21.In one embodiment, 21 place plane of hoisting ring is perpendicular to 11 place plane of outer shroud,
Soft nitriding furnace is passed in and out in order to which shove charge frock 100 is vertically lifted.
Stand 3 is fixedly connected between the downside of collar 2 and inner ring 12, and stand 3 includes multiple montants 31, each montant 31
On be provided with multiple hanging rods 32, multiple montants 31 are evenly distributedly arranged between collar 2 and inner ring 12, and each hanging rod 32 is vertical
It in the montant 31 where it and extends outwardly, is intersected on multiple montants 31 positioned at the extended line of conplane hanging rod 32 inwardly
The central shaft of inner ring 12, each hanging rod 32 outer shroud 11 projection in the plane be all located at model between inner ring 12 and outer shroud 11
In enclosing.Preferably, the length of each hanging rod 32 is less than the length of every spoke 13.
In practical applications, stand 3 may include 12 montants, 31,12 31 annular arrays of montant in collar 2 and interior
Between ring 12, at least ten hanging rods 32 are may be provided on each montant 31.Preferably, the multiple hanging rods set on each montant 31
32 are mutually parallel, and above-mentioned design can be convenient for workpiece loading and unloading.
It should be noted that the length of multiple hanging rods 32 on each montant 31 can be different, it is more on different montants 31
The length of a hanging rod 32 can not also be same, but each hanging rod 32 outer shroud 11 projection in the plane should not exceed outer shroud 11
Scope, accident occurs in loading furnace process to avoid hanging rod 32 and collides with.
In one embodiment, each montant 31 is mutually parallel, and multiple montants 31 are all parallel to the central shaft of inner ring 12, on
The fixing of structure itself can be taken into account and mitigate dead weight as much as possible by stating design.
In one embodiment, each hanging rod 32 includes connecting the fixing end 321 of montant 31 and compared with fixing end 321
Free end 322.Preferably, between the fixing end 321 of each hanging rod 32 and free end 322 can have convex-concave surface, convenient for
Multiple gear class workpiece are placed in positioning on same hanging rod 32.In practical applications, the free end 322 of each hanging rod 32 can also be set
It is equipped with hook（It is not shown）, above-mentioned design can be convenient for fixed workpiece.
It is improved according to the shove charge frock of above-mentioned soft nitriding furnace, the soft-nitriding process of a modification of the present invention is including as follows
Step：
By workpiece in shove charge frock；And；
Shove charge frock equipped with workpiece is sent into soft nitriding furnace and carries out soft-nitriding process, wherein, the heating-up time of tufftride is
10min, evacuation time 105-115min ooze by force the time for 235-245min, diffusion time 28-32min.
Based on above-mentioned improved soft nitriding furnace shove charge frock, workpiece of the invention, such as gear are carrying out tufftride work
During skill, a batch can reach original 2 times, by taking piece weight is the transmission gear of 0.21kg as an example, before and after improving
Batch comparison see the table below 1：
Table 1：Batch compares
It improves front and rear technological parameter comparison and see the table below 2：
Table 2：Technological parameter compares
It improves front and rear workpiece sensing Comparative result and see the table below 3：
Table 3：Workpiece sensing Comparative result
| Technique | Compound layer（mm) | Diffusion layer (mm) | Case hardness (HV9.8N) |
| Former technique | 0.018 | 0.31 | 762 |
| Existing technique | 0.015 | 0.25 | 737 |
According to above-mentioned comparing result, although the shove charge frock improved process time adds about 20%, once carry out soft
The piece count of nitridation is original twice, considered from whole, the improved tufftride improved efficiency of frock 80% or so,
Cost reduction 45% or so.
The soft nitriding furnace shove charge tool structure of the present invention using external hanging type annular framework, can increase the shove charge quantity of frock
With mitigate frock weight in itself, and charge and discharge operations are more convenient, greatly improve the processing efficiency of soft-nitriding process, significantly drop
Low production cost.
The present invention is described by above-mentioned related embodiment, however above-described embodiment is only the example for implementing the present invention.
It must be noted that the embodiment disclosed is not limiting as the scope of the present invention.On the contrary, do not depart from the present invention spirit and
In the range of made change and retouch, belong to the present invention scope of patent protection.
Claims (10)
1. improved soft nitriding furnace shove charge frock, which is characterized in that the shove charge frock includes：
Annular chassis, the annular chassis include outer shroud, inner ring and Duo Gen spokes, and the outer shroud is conllinear with the central shaft of the inner ring, should
More spokes are around the interior circle permutation and are fixedly connected between the inner ring and the outer shroud, the outer shroud, the inner ring and the more spokes
Item is in same plane；
Collar, the collar is identical with the inner ring shape and is arranged at the top of the inner ring, and the collar and the central shaft of the inner ring are total to
Line is provided with hoisting ring on the upside of the collar；And
Stand, the stand are fixedly connected between the downside of the collar and the inner ring, which includes multiple montants, each montant
On be provided with multiple hanging rods, the plurality of montant is evenly distributedly arranged between the collar and the inner ring, each hanging rod perpendicular to
It montant where it and extends outwardly, the extended line inwardly on the plurality of montant positioned at conplane hanging rod is intersected in the inner ring
Central shaft, each hanging rod the outer shroud projection in the plane be all located between the inner ring and the outer shroud.
2. improved soft nitriding furnace shove charge frock as described in claim 1, which is characterized in that the extended line of the more spokes is handed over
It is compiled in the central shaft of the inner ring.
3. improved soft nitriding furnace shove charge frock as claimed in claim 2, which is characterized in that the length of each hanging rod is less than every
The length of root spoke.
4. improved soft nitriding furnace shove charge frock as described in claim 1, which is characterized in that the stand includes 12 and erects
Bar, 12 montant annular arrays are provided at least ten hanging rods between the collar and the inner ring on each montant.
5. improved soft nitriding furnace shove charge frock as described in claim 1, which is characterized in that set on each montant multiple
Hanging rod is mutually parallel.
6. improved soft nitriding furnace shove charge frock as described in claim 1, which is characterized in that each montant is mutually parallel, and
The plurality of montant is all parallel to the central shaft of the inner ring.
7. improved soft nitriding furnace shove charge frock as described in claim 1, which is characterized in that each hanging rod includes connecting
The fixing end of montant and the free end compared with the fixing end.
8. improved soft nitriding furnace shove charge frock as claimed in claim 7, which is characterized in that the fixing end of each hanging rod and
There is convex-concave surface between the free end.
9. improved soft nitriding furnace shove charge frock as claimed in claim 7, which is characterized in that the free end of each hanging rod is set
It is equipped with hook.
10. a kind of improved soft-nitriding process, which is characterized in that the soft-nitriding process includes the following steps：
Workpiece is mounted in as in claim 1-9 any one of them shove charge frocks；And；
Shove charge frock equipped with workpiece is sent into soft nitriding furnace and carries out soft-nitriding process, wherein, the heating-up time of tufftride is
10min, evacuation time 105-115min ooze by force the time for 235-245min, diffusion time 28-32min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711482773.8A CN108085637B (en) | 2017-12-29 | 2017-12-29 | Improved soft nitriding furnace charging tool and soft nitriding process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711482773.8A CN108085637B (en) | 2017-12-29 | 2017-12-29 | Improved soft nitriding furnace charging tool and soft nitriding process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108085637A true CN108085637A (en) | 2018-05-29 |
| CN108085637B CN108085637B (en) | 2023-04-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711482773.8A Active CN108085637B (en) | 2017-12-29 | 2017-12-29 | Improved soft nitriding furnace charging tool and soft nitriding process |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101876051A (en) * | 2010-06-07 | 2010-11-03 | 无锡市第二轴承有限公司 | Bearing tuffitriding frame |
| CN101984131A (en) * | 2010-11-29 | 2011-03-09 | 大连名阳实业有限公司 | Entire-gear ion nitriding furnace loading tool set |
| CN201873742U (en) * | 2010-11-29 | 2011-06-22 | 大连名阳实业有限公司 | Furnace charging tool for performing ion nitridation to whole gear |
| CN203550512U (en) * | 2013-10-31 | 2014-04-16 | 湖南九华碳素高科有限公司 | Lifting frame |
| CN203728913U (en) * | 2013-11-26 | 2014-07-23 | 沪东重机有限公司 | Nitriding hanging tool |
| CN104004986A (en) * | 2013-02-26 | 2014-08-27 | 大连创新齿轮箱制造有限公司 | Furnace temperature uniformity test tool of gear ion nitriding furnace |
| CN204550693U (en) * | 2015-03-24 | 2015-08-12 | 泰尔重工股份有限公司 | Well formula gas nitriding furnace workpiece placer |
| CN207877843U (en) * | 2017-12-29 | 2018-09-18 | 兴化东华齿轮有限公司 | Improved soft nitriding furnace shove charge tooling |
-
2017
- 2017-12-29 CN CN201711482773.8A patent/CN108085637B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101876051A (en) * | 2010-06-07 | 2010-11-03 | 无锡市第二轴承有限公司 | Bearing tuffitriding frame |
| CN101984131A (en) * | 2010-11-29 | 2011-03-09 | 大连名阳实业有限公司 | Entire-gear ion nitriding furnace loading tool set |
| CN201873742U (en) * | 2010-11-29 | 2011-06-22 | 大连名阳实业有限公司 | Furnace charging tool for performing ion nitridation to whole gear |
| CN104004986A (en) * | 2013-02-26 | 2014-08-27 | 大连创新齿轮箱制造有限公司 | Furnace temperature uniformity test tool of gear ion nitriding furnace |
| CN203550512U (en) * | 2013-10-31 | 2014-04-16 | 湖南九华碳素高科有限公司 | Lifting frame |
| CN203728913U (en) * | 2013-11-26 | 2014-07-23 | 沪东重机有限公司 | Nitriding hanging tool |
| CN204550693U (en) * | 2015-03-24 | 2015-08-12 | 泰尔重工股份有限公司 | Well formula gas nitriding furnace workpiece placer |
| CN207877843U (en) * | 2017-12-29 | 2018-09-18 | 兴化东华齿轮有限公司 | Improved soft nitriding furnace shove charge tooling |
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| Publication number | Publication date |
|---|---|
| CN108085637B (en) | 2023-04-25 |
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Effective date of registration: 20210126 Address after: No. 10, Chengnan West Road, Xinghua City, Taizhou, Jiangsu Applicant after: DONGHUA CHAIN XINGHUA Co.,Ltd. Address before: No.8 Wuli West Road, Xinghua City, Taizhou City, Jiangsu Province 225700 Applicant before: XINGHUA DONGHUA GEAR Co.,Ltd. |
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