CN211160276U - Novel nozzle for improving performance stability of online heat treatment steel rail - Google Patents
Novel nozzle for improving performance stability of online heat treatment steel rail Download PDFInfo
- Publication number
- CN211160276U CN211160276U CN201921291473.6U CN201921291473U CN211160276U CN 211160276 U CN211160276 U CN 211160276U CN 201921291473 U CN201921291473 U CN 201921291473U CN 211160276 U CN211160276 U CN 211160276U
- Authority
- CN
- China
- Prior art keywords
- rail
- nozzle
- length
- steel rail
- heat treatment
- 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.)
- Active
Links
Images
Landscapes
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
Abstract
The utility model discloses an improve novel nozzle of online thermal treatment rail performance stability in rail heat treatment field to solve present rail deformation, beat and lead to railhead surface target cooling area and the regional skew problem of taking place easily of actual cooling. The nozzle comprises a nozzle body, wherein a nozzle orifice of the nozzle is in a strip shape with the length of 10-16mm and the length-width ratio of 1.8-2.6. When the rail head is installed, the length directions of the nozzle spouts on the two sides of the rail head are parallel to the side surface of the rail head, and the length direction of the nozzle spout on the tread of the rail head is vertical to the length direction of the steel rail. Compared with a circular nozzle, the utility model discloses at spout length direction efflux section enlargement, only need increase a small amount of medium flow, even the rail skew of beating, injection area also can cover the rail surface, has enlarged the effective cooling area to the rail surface, has eliminated the deviation that the process of beating of rail self irregularity and marcing caused target cooling area and actual cooling area, has improved the stability and the homogeneity of rail thermal treatment back performance.
Description
Technical Field
The utility model relates to a nozzle especially relates to a improve novel nozzle of online thermal treatment rail stability of performance.
Background
Rail manufacturers at home and abroad basically adopt an online heat treatment technology to improve the strength and hardness of the rail so as to increase the wear resistance and fatigue resistance of the rail, meet the use requirements under severe conditions of heavy load, small-curve railways and the like, and prolong the service life of the rail.
The jet steel rail heat treatment technology at home and abroad adopts a circular nozzle to perform forced cooling on the tread and the side surface of the head of the steel rail, the Japanese New iron in the Chinese patent application of 'steel rail heat treatment method and equipment' (patent No. Z L85109735A) introduces a heat treatment method using compressed air as a cooling medium, the diameter of the nozzle is between 2.0 and 9.0mm ', the Chinese patent' steel rail heat treatment method and device '(patent No. Z L92113263.8) introduces a water-jet cooling heat treatment method, the inner diameter of the nozzle is between 1 and 8 mm', the Chinese patent 'air-jet cooling device for steel rail heat treatment' (Z L92241881.0) introduces an air-jet cooling heat treatment method, the diameter of the nozzle is between 1 and 8mm, the Chinese patent 'a steam-mist cooling experimental device for steel rail heat treatment' (Z L201410819238.7) provides a steam-mist cooling experimental device, and the diameter of the steam-mist nozzle is between 0.5 and 2.5 mm.
On one hand, the rolled hot steel rail has certain irregularity, on the other hand, the steel rail moves at a certain speed during heat treatment, although a limiting device is adopted, jump deviation inevitably exists, deviation between a target cooling area and an actual cooling area on the surface of a steel rail head is inevitably caused, and thus Rockwell hardness of the cross section of the steel rail after heat treatment is unstable and asymmetric.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the prior art defect, provide a novel nozzle that improves online thermal treatment rail performance stability.
The technical scheme of the utility model is realized like this: a novel nozzle for improving the performance stability of an on-line heat-treated steel rail comprises a nozzle body, and is characterized in that a nozzle is in a strip shape with the length of 10-16mm and the length-width ratio of 1.8-2.6.
Preferably, the middle part of the nozzle is rectangular, the two head parts are respectively semicircular, and the diameter of each semicircle is the same as the width of the rectangle.
Preferably, the length direction of the nozzle spouts on the two sides of the railhead is parallel to the side surface of the railhead during installation, and the length direction of the nozzle spouts on the tread of the railhead is perpendicular to the length direction of the steel rail.
Compared with a circular nozzle, the utility model discloses at spout length direction efflux section enlargement, only need increase a small amount of medium flow, even the rail skew of beating, injection area also can cover the rail surface, has enlarged the effective cooling area to the rail surface, has eliminated the deviation that the process of beating of rail self irregularity and marcing caused target cooling area and actual cooling area, has improved the stability and the homogeneity of rail thermal treatment back performance.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is an installation schematic diagram of the present invention.
In the drawings, 1-the nozzle body; 2-a nozzle; 3-railhead.
Detailed Description
The following is further described in conjunction with the appended drawings:
as shown in fig. 1 and 2, a novel nozzle for improving the performance stability of an on-line heat-treated steel rail comprises a nozzle body, wherein a nozzle orifice of the nozzle is in a strip shape with the length of 10-16mm and the length-width ratio of 1.8-2.6, such as the length of 10mm and the width of 5mm, or the length of 12mm and the width of 6mm, or the length of 14mm and the width of 6mm, or the length of 16mm and the width of 7mm, and is specifically selected according to the section size of the steel rail; the middle part of the nozzle is rectangular, the two head parts are respectively semicircular, the diameter of the semicircle is the same as the width of the rectangle, the processing and the installation are convenient, and the cooling medium can be smoothly sprayed; when the rail head is installed, the length directions of the nozzle spouts on the two sides of the rail head are parallel to the side surface of the rail head, and the length direction of the nozzle spout on the tread of the rail head is perpendicular to the length direction of the steel rail, so that a cooling medium in the length direction of the spout can be swept to the whole working surface of the rail head like a broom.
Compared with a circular nozzle, the utility model discloses at spout length direction efflux section enlargement, only need increase a small amount of medium flow, even the rail skew of beating, injection area also can cover the rail surface, has enlarged the effective cooling area to the rail surface, has eliminated the deviation that the process of beating of rail self irregularity and marcing caused target cooling area and actual cooling area, has improved the stability and the homogeneity of rail thermal treatment back performance.
Claims (2)
1. The utility model provides an improve online thermal treatment rail stability of performance's novel nozzle, includes the nozzle body, its characterized in that: the nozzle spouts are strip-shaped with the length of 10-16mm and the length-width ratio of 1.8-2.6, the length directions of the nozzle spouts on the two sides of the railhead are parallel to the side surface of the railhead during installation, and the length directions of the nozzle spouts on the tread of the railhead are vertical to the length direction of the steel rail.
2. The novel nozzle for improving the performance stability of the on-line heat-treated steel rail according to claim 1, is characterized in that: the middle part of the nozzle is rectangular, the two head parts are respectively semicircular, and the semicircular diameter is the same as the rectangular width.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921291473.6U CN211160276U (en) | 2019-08-11 | 2019-08-11 | Novel nozzle for improving performance stability of online heat treatment steel rail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921291473.6U CN211160276U (en) | 2019-08-11 | 2019-08-11 | Novel nozzle for improving performance stability of online heat treatment steel rail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211160276U true CN211160276U (en) | 2020-08-04 |
Family
ID=71827741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921291473.6U Active CN211160276U (en) | 2019-08-11 | 2019-08-11 | Novel nozzle for improving performance stability of online heat treatment steel rail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211160276U (en) |
-
2019
- 2019-08-11 CN CN201921291473.6U patent/CN211160276U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206578676U (en) | Round tube inner wall derusting, dust arrester | |
| CN109022747B (en) | Postweld heat treatment method for U71MnH steel rail flash welding joint | |
| CN204023318U (en) | A kind of rail joint | |
| CN211160276U (en) | Novel nozzle for improving performance stability of online heat treatment steel rail | |
| CN206916184U (en) | Big inclined-plane roll barrel edge quenching unit | |
| KR20140066435A (en) | Baffle device for gas wiping apparatus | |
| CN108144967B (en) | It is a kind of for cooling down and lubricating the emulsion spray device of copper wires roll for hot-rolling | |
| CN209867301U (en) | Online fire removing and nodule cutting device for continuous casting round billet | |
| CN107674961B (en) | Intermediate frequency heat treatment mechanism for suspension type steel rail flash butt welding | |
| CN203076332U (en) | Water spraying pipe for cooling of roller | |
| CN210754342U (en) | F-shaped steel for magnetic levitation track | |
| CN206204703U (en) | A kind of e shape springs for there is shoulder arrangement non-fragment orbit | |
| CN203715677U (en) | Jet quenching water stopping mechanism | |
| CN205183669U (en) | Online cooling device of heavy rail tread | |
| CN207035929U (en) | Fin and apply its heat exchange hush pipe | |
| CN205917535U (en) | Alloy steel assembled frog | |
| CN211099633U (en) | Edge purging nozzle | |
| CN206392617U (en) | A kind of five roller level(l)ing machines of spiral-tube former | |
| CN206316936U (en) | The horizontal automatic ball blast production line cooling device of steel band | |
| CN207016830U (en) | A kind of online controlled cooling device | |
| CN106222380B (en) | A kind of fixture for hardening of rails | |
| CN109182716B (en) | Steel rail on-line heat treatment method and restraint device thereof | |
| CN109338075B (en) | On-line heat treatment method for rail web of turnout steel rail and restraining device thereof | |
| CN203578355U (en) | Device for removing oxide scale bonded at grooves of heavy-rail universal mill | |
| CN205572197U (en) | Sandblast frock |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |