CN109774741A - Goat locking iron and its heat treatment process - Google Patents
Goat locking iron and its heat treatment process Download PDFInfo
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- CN109774741A CN109774741A CN201811606186.XA CN201811606186A CN109774741A CN 109774741 A CN109774741 A CN 109774741A CN 201811606186 A CN201811606186 A CN 201811606186A CN 109774741 A CN109774741 A CN 109774741A
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- Prior art keywords
- locking iron
- treatment process
- layer
- tissue
- anticorrosion antiwear
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Abstract
The disclosure is directed to a kind of goat locking iron and its heat treatment process, which includes locking iron ontology, which forms anticorrosion antiwear layer through nitriding heat treatment process.The anticorrosion antiwear performance of locking iron can be improved in the disclosure, prolongs its service life, and then avoids jeopardizing the factor of traffic safety, improves train traffic safety.
Description
Technical field
This disclosure relates to goat components manufacturing technology field more particularly to a kind of goat locking iron and its heat treatment
Technique.
Background technique
The important equipment that track switch connects as rail track is one of link most weak in track, with railway transportation
Development to high-speed overload direction, the use of heavy rail and large size code channel trouble, to conversion equipment, more stringent requirements are proposed.Conversion is set
Standby external locking device, can be efficiently against conversion resistance force of tongue when closely connected, reliably locking point tongue and stock rail, i.e.,
Connecting rod is set to fracture, external locking device is still playing locking effect, and goat locking iron is of crucial importance in external locking device
Part.
Goat locking iron general work easily corrodes and exists abrasion in the adverse circumstances such as field, wind and weather, use
Service life is reduced, and there are problems that potential jeopardizing traffic safety.Therefore, it is necessary to provide a kind of new above-mentioned side of technical solution improvement
One or more problem present in case.
Summary of the invention
The disclosure is designed to provide a kind of goat locking iron and its heat treatment process, and then at least to a certain degree
On overcome the problems, such as caused by the limitation and defect due to the relevant technologies one or more.
The embodiment of the present disclosure provides a kind of goat locking iron, including locking iron ontology, and the locking iron body surface is through seeping
Nitrogen heat treatment process forms anticorrosion antiwear layer.
In embodiment of the disclosure, the locking iron ontology is forged by substrate, normalizing, quenched formation, and hardness is 210
~260HB.
In embodiment of the disclosure, the substrate material of the locking iron ontology is 45 steel.
In embodiment of the disclosure, the anticorrosion antiwear layer from outward appearance to inner essence successively includes compound layer and diffusion layer.
In embodiment of the disclosure, the anticorrosion antiwear layer includes at least nitride tissue, carbide tissue and oxide
One or more of tissue.
In embodiment of the disclosure, the nitriding heat treatment process is liquid ions Nitrizing Treatment technique.
The embodiment of the present disclosure also provides a kind of goat locking iron surface heat treatment process, comprising:
One substrate is provided, which is successively forged, normalizing and modifier treatment form locking iron ontology；
Liquid ions Nitrizing Treatment is carried out to the locking iron body surface and forms anticorrosion antiwear layer.
In embodiment of the disclosure, the locking iron ontology hardness is 210~260HB.
In embodiment of the disclosure, the anticorrosion antiwear layer from outward appearance to inner essence successively includes compound layer and diffusion layer.
In embodiment of the disclosure, the anticorrosion antiwear layer includes at least nitride tissue, carbide tissue and oxide
One or more of tissue.
The technical scheme provided by this disclosed embodiment can include the following benefits:
In embodiment of the disclosure, nitriding heat treatment process is carried out in locking iron body surface and forms anticorrosion antiwear layer, from
And the anticorrosion antiwear performance of locking iron is improved, it prolongs its service life, and then avoid jeopardizing the factor of traffic safety, improves train
Travel safety.
Detailed description of the invention
Fig. 1 shows goat locking iron top view in disclosure exemplary embodiment；
Fig. 2 shows the schematic cross-sectional views of goat locking iron in the embodiment of the present disclosure shown in Fig. 1；
Fig. 3 shows goat locking iron side view in disclosure exemplary embodiment；
Fig. 4 shows goat locking iron surface heat treatment process flow diagram in the embodiment of the present disclosure.
Specific embodiment
Example embodiment is described more fully with reference to the drawings.However, example embodiment can be with a variety of shapes
Formula is implemented, and is not understood as limited to example set forth herein；On the contrary, thesing embodiments are provided so that the disclosure will more
Fully and completely, and by the design of example embodiment comprehensively it is communicated to those skilled in the art.Described feature, knot
Structure or characteristic can be incorporated in any suitable manner in one or more embodiments.
In addition, attached drawing is only the schematic illustrations of the disclosure, it is not necessarily drawn to scale.Identical attached drawing mark in figure
Note indicates same or similar part, thus will omit repetition thereof.Some block diagrams shown in the drawings are function
Energy entity, not necessarily must be corresponding with physically or logically independent entity.
A kind of goat locking iron is provided firstly in this example embodiment, which may include locking iron sheet
Body, schematic construction is as illustrated in figures 1-3.In the present embodiment, which forms anti-through nitriding heat treatment process
Rotten wearing layer.The anticorrosion antiwear performance that locking iron can be improved in this way, prolongs its service life, and then avoids or even disappear substantially
Except the factor for jeopardizing traffic safety.
Specifically, in embodiment of the disclosure, the substrate material of the locking iron ontology can be 45 steel, certainly not
It is limited to this.The locking iron ontology forged, normalizing, quenched formation by substrate such as 45 steel, and hardness is 210~260HB.Preferably
, hardness can be 220~240HB.
In an embodiment of the disclosure, the anticorrosion antiwear layer to be formed is heat-treated by nitriding from outward appearance to inner essence can be according to
Secondary includes compound layer and diffusion layer.Further, in an embodiment of the disclosure, the anticorrosion antiwear layer at least be can wrap
Include one or more of nitride tissue, carbide tissue and oxide tissue.For example, the compound layer may include
Fe2N、Fe3N、Fe4N、Fe3C、Fe3O4Compound tissue etc..This makes locking iron ontology have good wear-resisting and antiseptic property,
Not only itself is wear-resisting, but also has good anti-attrition effect, further extends the service life of locking iron.
Specifically, the nitriding heat treatment process is liquid ions Nitrizing Treatment technique, the work in embodiment of the disclosure
Skill can carry out in liquid ions nitriding furnace, can specifically include following steps:
Locking iron ontology is immersed in the fuse salt that CNO-1 mass of ion score is 28%~40% and add stage by stage
Heat treatment, the fuse salt are mixing finished product salt.First heating period temperature is 400~550 DEG C, and the time is 30~120min,
Preferably the temperature range can be 410~520 DEG C, and the time can be 30~110min, which can be improved the locking iron
Body surface activity.Second heating period temperature is 500~700 DEG C, and the time is 30~120min, and preferably the temperature range can
To be 530~610 DEG C, the time can be 30~110min, and after second heating period, the locking iron body surface is
Anticorrosion antiwear nitration case can be formed.
As shown in figure 4, the embodiment of the present disclosure also provides a kind of goat locking iron surface heat treatment process, which can be with
The following steps are included:
Step S101: providing a substrate, is successively forged to the substrate, normalizing and modifier treatment form locking iron sheet
Body.Specifically, the substrate can be 45 steel, and hardness is 210~260HB.
Step S102: liquid ions Nitrizing Treatment is carried out to the locking iron body surface and forms anticorrosion antiwear layer.
It is carried out specifically, locking iron ontology is immersed in the fuse salt that CNO-1 mass of ion score is 28%~40%
Heat stage by stage, the fuse salt is mixing finished product salt.First heating period temperature be 400~550 DEG C, the time be 30~
120min, the preferably temperature range can be 410~520 DEG C, and the time can be 30~110min, which can be improved described
Locking iron body surface activity.Second heating period temperature is 500~700 DEG C, and the time is 30~120min, the preferably temperature
Range can be 530~610 DEG C, and the time can be 30~110min, after second heating period, the locking iron ontology
Surface can form anticorrosion antiwear nitration case.
The anticorrosion antiwear nitration case includes compound layer from outward appearance to inner essence successively including compound layer and diffusion layer, specifically
, the compound layer with a thickness of 10~50 μm, the diffusion layer with a thickness of 0.2~0.4mm.Further, in this public affairs
In the embodiment opened, the anticorrosion antiwear layer at least may include in nitride tissue, carbide tissue and oxide tissue
One or more.For example, the compound layer may include Fe2N、Fe3N、Fe4N、Fe3C、Fe3O4Compound tissue etc..This
So that locking iron ontology has good wear-resisting and antiseptic property, not only itself is wear-resisting, but also has good anti-attrition effect,
Further extend the service life of locking iron.
In the description of the disclosure, in addition, term " first ", " second " are used for description purposes only, and it should not be understood as referring to
Show or imply relative importance or implicitly indicates the quantity of indicated technical characteristic." first ", " second " are defined as a result,
Feature can explicitly or implicitly include one or more of the features.In the description of the disclosure, " multiples' " contains
Justice is two or more, unless otherwise specifically defined.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is contained at least one embodiment or example of the disclosure.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
What can be combined in any suitable manner in one or more embodiment or examples.In addition, those skilled in the art can say this
Different embodiments or examples described in bright book are engaged and are combined.
Those skilled in the art after considering the specification and implementing the invention disclosed here, will readily occur to its of the disclosure
Its embodiment.This application is intended to cover any variations, uses, or adaptations of the disclosure, these modifications, purposes or
Person's adaptive change follows the general principles of this disclosure and including the undocumented common knowledge in the art of the disclosure
Or conventional techniques.The description and examples are only to be considered as illustrative, and the true scope and spirit of the disclosure are by appended
Claim is pointed out.
Claims (10)
1. a kind of goat locking iron, which is characterized in that including locking iron ontology, which is heat-treated through nitriding
Technique forms anticorrosion antiwear layer.
2. locking iron according to claim 1, which is characterized in that the locking iron ontology is forged by substrate, normalizing, quenched
It is formed, and hardness is 210~260HB.
3. locking iron according to claim 2, which is characterized in that the substrate material of the locking iron ontology is 45 steel.
4. locking iron according to claim 2, which is characterized in that the anticorrosion antiwear layer from outward appearance to inner essence successively includes compound
Layer and diffusion layer.
5. locking iron according to claim 4, which is characterized in that the anticorrosion antiwear layer includes at least nitride tissue, carbon
One or more of compound tissue and oxide tissue.
6. locking iron described according to claim 1~one of 5, which is characterized in that the nitriding heat treatment process is liquid ions
Nitrizing Treatment technique.
7. a kind of goat locking iron surface heat treatment process characterized by comprising
One substrate is provided, which is successively forged, normalizing and modifier treatment form locking iron ontology；
Liquid ions Nitrizing Treatment is carried out to the locking iron body surface and forms anticorrosion antiwear layer.
8. treatment process according to claim 7, which is characterized in that the locking iron ontology hardness is 210~260HB.
9. treatment process according to claim 7, which is characterized in that the anticorrosion antiwear layer from outward appearance to inner essence successively includes chemical combination
Nitride layer and diffusion layer.
10. treatment process according to claim 9, which is characterized in that the anticorrosion antiwear layer include at least nitride tissue,
One or more of carbide tissue and oxide tissue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811606186.XA CN109774741A (en) | 2018-12-27 | 2018-12-27 | Goat locking iron and its heat treatment process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811606186.XA CN109774741A (en) | 2018-12-27 | 2018-12-27 | Goat locking iron and its heat treatment process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109774741A true CN109774741A (en) | 2019-05-21 |
Family
ID=66498461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811606186.XA Pending CN109774741A (en) | 2018-12-27 | 2018-12-27 | Goat locking iron and its heat treatment process |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1597011A1 (en) * | 2003-02-26 | 2005-11-23 | Bradken Resources Pty Limited | A steel member and a method of hard-facing thereof |
| CN201343049Y (en) * | 2008-11-21 | 2009-11-11 | 北京铁路局太原电务器材厂 | Block-type external locking device |
| CN102384266A (en) * | 2011-10-21 | 2012-03-21 | 贵阳白云高原紧固件有限公司 | Multifunctional crown block piston rod |
| CN104195505A (en) * | 2014-07-26 | 2014-12-10 | 陕西铁马铸锻有限公司 | Process for preparing novel corrosion-resistant and wear-resistant color steel pipe |
| CN104401363A (en) * | 2014-11-04 | 2015-03-11 | 太原市万柏林区利丰机械设备厂 | Square (circular) hole sleeve for external locking mechanism of point machine and powder metallurgy manufacture method thereof |
| CN106864480A (en) * | 2015-12-11 | 2017-06-20 | 天津辉煌路阳科技有限公司 | The closedown structure of goat |
-
2018
- 2018-12-27 CN CN201811606186.XA patent/CN109774741A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1597011A1 (en) * | 2003-02-26 | 2005-11-23 | Bradken Resources Pty Limited | A steel member and a method of hard-facing thereof |
| CN201343049Y (en) * | 2008-11-21 | 2009-11-11 | 北京铁路局太原电务器材厂 | Block-type external locking device |
| CN102384266A (en) * | 2011-10-21 | 2012-03-21 | 贵阳白云高原紧固件有限公司 | Multifunctional crown block piston rod |
| CN104195505A (en) * | 2014-07-26 | 2014-12-10 | 陕西铁马铸锻有限公司 | Process for preparing novel corrosion-resistant and wear-resistant color steel pipe |
| CN104401363A (en) * | 2014-11-04 | 2015-03-11 | 太原市万柏林区利丰机械设备厂 | Square (circular) hole sleeve for external locking mechanism of point machine and powder metallurgy manufacture method thereof |
| CN106864480A (en) * | 2015-12-11 | 2017-06-20 | 天津辉煌路阳科技有限公司 | The closedown structure of goat |
Non-Patent Citations (1)
| Title |
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| 周俊伟: "重载铁路道岔电液转换设备优化研究", 《铁道通信信号》 * |
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Application publication date: 20190521 |