CN109967562A - Heat rapid cooling d-axis method - Google Patents
Heat rapid cooling d-axis method Download PDFInfo
- Publication number
- CN109967562A CN109967562A CN201910135425.6A CN201910135425A CN109967562A CN 109967562 A CN109967562 A CN 109967562A CN 201910135425 A CN201910135425 A CN 201910135425A CN 109967562 A CN109967562 A CN 109967562A
- Authority
- CN
- China
- Prior art keywords
- axis
- value
- heating
- cooling
- straightened
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C51/00—Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses B21B - B21F
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/16—Heating or cooling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The invention discloses a kind of heating rapid cooling d-axis method, include the following steps: that preparing a suitable coolant liquid high position places, Convenient switch is cooling；Axis both ends to be straightened are placed on bracket, just upward by axis maximum deflection point；The dial gauge for monitoring round jitter values is laid in axis to be straightened at least one end, and calibration record is read；Heated length is determined according to curvature, and heating first since maximum deflection salient point, is then moved along axis to two sides；It can be appreciated that dial gauge is mobile toward positive value when the temperature increases, when numerical value increases to setting value, stop heating opening coolant liquid to cool down axis hot spot immediately, it can be appreciated that dial gauge is mobile toward negative value, reduction coolant liquid stablizes percentage tabular value on the 1/2 of bending shaft value after returning 0 continuation negative value to the 1/2 of bending shaft value, and d-axis is completed after cooling down completely and is worked；After axis is cooling, the curvature of axis is checked, if not up to requiring, continue to correct by above-mentioned steps.The present invention has the characteristics that the high-efficient and expense of alignment is low.
Description
Technical field
The invention belongs to aligning axis part technical field more particularly to a kind of heating rapid cooling d-axis methods.
Background technique
Existing local heating pressurization to the heating position of axis, temperature, heating time, the type of cooling and pays attention to thing
Item is identical with Local heating method.Distinguishing is before heating, to be applied around pressure in knee with pressurizing tool, make
Axis generates the predeformation (i.e. flexible deformation) opposite with former bending direction.After heating, the expansion of metal at heating is obstructed, and squeezes
Stress reaches yield limit because of high temperature in advance, generates plastic deformation.This method and pure local heating d-axis all can be only done
After a time d-axis technique, then detection effect, need repeated multiple times long-time to can be only achieved standard requirements；Local heating pressurization and
There is a particularly significant and stubborn problem during Method of Stress Relaxation d-axis, is exactly the monitoring of alignment amount.Although heating
Temperature and pressurization dynamics design all by calculating and must actually have deviation unexpectedly, in addition there are many variable factor during d-axis,
As without reliably monitoring on the spot, just there is certain blindness in d-axis.Common practice is: monitoring the oil pressure drop of pressurizing jack
Low value, and the corresponding deflection of axial stress relaxation is calculated with the value, and d-axis effect must be uniform in hot axis ambient temperature
Or axis it is completely cooling after measure its curvature and just can determine that.If owing school or crossing school, next round d-axis is remake.In this way, completing straight
The time of axis can be very long.To this problem, insider is still in the scheme for studying and improving solution from different perspectives.
Summary of the invention
The application aims to solve at least one of the technical problems existing in the prior art.For this purpose, an object of the present invention
It is to provide heating rapid cooling d-axis method a kind of at low cost and that alignment is high-efficient.
In order to solve the above technical problems, the present invention adopts the following technical scheme:
Rapid cooling d-axis method is heated, is included the following steps:
S1: prepare a suitable coolant liquid high position and place, Convenient switch is cooling；
S2: being placed on axis both ends to be straightened on bracket, just upward by axis maximum deflection point；
S3: the dial gauge for monitoring round jitter values is laid in axis to be straightened at least one end, and calibration record is read；
S4: determining heated length according to curvature, and heating is first since maximum deflection salient point, then along axis to two sidesways
It is dynamic；
S5: can be appreciated that dial gauge is mobile toward positive value when the temperature increases, when numerical value increases to setting value, stops heating and beats
It opens coolant liquid and axis is cooled down immediately, can be appreciated that dial gauge is mobile toward negative value, after returning 0 continuation negative value to the 1/2 of bending shaft value
Reducing coolant liquid stablizes percentage tabular value on the 1/2 of bending shaft value, and d-axis work is completed after cooling down completely；
S6: it after axis is all cooling, checks the curvature of axis, if not up to requiring, continues to correct by above-mentioned steps.
Further, heating temperature is no more than axis high tempering temperature to be straightened.
Further, the alignment of axis slightly school phenomenon excessively is preferable, i.e., with former bending direction, there are about 0.02~0.03mm on the contrary
Excessively curved value be advisable.
Further, branch, which is erected at the maximum deflection point of axis to be straightened and the middle position of axial end, is advisable, detection table note
The basic respective shaft amount of bow of reading, convenient for intuitive.
Further, setting value is empirical value 1mm in S5 step.
Further, fiery nozzle is heated apart from axial plane 15-20mm, only carries out axial heating.
Compared with prior art, the application directlys adopt flame heating and is straightened to axis and passes through dial gauge to alignment feelings
Condition is directly detected, to greatly improve alignment efficiency, reduces expense, has the characteristics that alignment is convenient, fast and accurate: special
It is not suitble to various axis class bending precise straightenings or the alignment of each model steel bending, is different from mechanical pressurization method, twists play, part
The new d-axis process of heating, local heating pressurization, one kind of Method of Stress Relaxation.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with the embodiment of the present invention, it is clear that retouched
The embodiment stated is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, originally
Field those of ordinary skill every other embodiment obtained without creative efforts, belongs to the present invention
The range of protection.
A kind of heating rapid cooling d-axis method, comprising the following steps:
S1: prepare a suitable room temperature cooling liquid high position and place, Convenient switch is cooling；
S2: two fulcrums of selection are placed on axis both ends to be straightened on bracket, just upward by axis maximum deflection point, wherein
One fulcrum is located at maximum deflection point and the centre of shaft end is relatively good；
S3: the vertical smooth finish surface in the shaft end that the dial gauge of monitoring is installed in the intermediate support of selection, and calibration record
Reading；
S4: heating fiery nozzle apart from axial plane about 15~20mm, first since maximum deflection salient point, then along axis to two sidesways
It is dynamic, heated length is determined according to curvature；Notice that controlling temperature rises to no more than high tempering temperature, that is, stops heating, exist side by side
Use room temperature cooling liquid continuous coo1ing.
S5: can be appreciated that dial gauge is mobile toward positive value when the temperature increases, and when numerical value increases 1mm, stopping heating being opened cold
But liquid cools down immediately, can be appreciated that dial gauge is mobile toward negative value, reduces cooling after returning 0 continuation negative value to the 1/2 of bending shaft value
Liquid stablizes percentage tabular value on the 1/2 of bending shaft value, and d-axis work is completed after cooling down completely；
S6: after axis is all cooling, checking the curvature of axis, if not up to requiring, can continue according to the above method and require
It is corrected.The alignment of axis slightly school phenomenon excessively is preferable, i.e., with former bending direction, there are about the excessively curved values of 0.02~0.03mm on the contrary
It is advisable.
The present embodiment directlys adopt flame heating and be straightened to axis and directly be examined by dial gauge to alignment situation
It surveys, to greatly improve alignment efficiency, reduces expense, have the characteristics that alignment is convenient, fast and accurate: being particularly suitable for various axis
Class is bent precise straightening or the alignment of each model steel bending, is different from mechanical pressurization method, twists play, Local heating method, part
A kind of new d-axis process of heating and pressurizing method, Method of Stress Relaxation.
Above-described embodiment is only to clearly demonstrate examples made by the present invention, rather than the restriction to embodiment.For
For those of ordinary skill in the art, other various forms of variations or change can also be made on the basis of the above description
It is dynamic.Here without can not be also exhaustive to all embodiments.And the obvious variation or change thus amplified out
It is dynamic to be still in the protection scope of this invention.
Claims (5)
1. heating rapid cooling d-axis method, which comprises the steps of:
S1: prepare a suitable coolant liquid high position and place, Convenient switch is cooling；
S2: being placed on axis both ends to be straightened on bracket, just upward by axis maximum deflection point；
S3: the dial gauge for monitoring round jitter values is laid in axis to be straightened at least one end, and calibration record is read；
S4: heated length is determined according to curvature, heating first since maximum deflection salient point, is then moved along axis to two sides；
S5: can be appreciated that dial gauge is mobile toward positive value when the temperature increases, and when numerical value increases to setting value, stopping heating being opened cold
But liquid cools down axis immediately, can be appreciated that dial gauge is mobile toward negative value, reduces after returning 0 continuation negative value to the 1/2 of bending shaft value
Coolant liquid stablizes percentage tabular value on the 1/2 of bending shaft value, and d-axis work is completed after cooling down completely；
S6: after axis is cooling, checking the curvature of axis, if not up to requiring, continues to correct by above-mentioned steps.
2. according to the method described in claim 1, it is characterized by: heating temperature is no more than axis high tempering temperature to be straightened
Degree.
3. according to the method described in claim 1, it is characterized by: branch is erected at the maximum deflection point and axial end of axis to be straightened
Middle position be advisable, the basic respective shaft amount of bow of reading of detection table note, convenient for intuitive.
4. according to the method described in claim 1, it is characterized by: setting value is empirical value 1mm in S5 step.
5. according to the method described in claim 1, it is characterized by: the fiery nozzle of heating only carries out axial add apart from axial plane 15-20mm
Heat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910135425.6A CN109967562A (en) | 2019-02-21 | 2019-02-21 | Heat rapid cooling d-axis method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910135425.6A CN109967562A (en) | 2019-02-21 | 2019-02-21 | Heat rapid cooling d-axis method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109967562A true CN109967562A (en) | 2019-07-05 |
Family
ID=67077316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910135425.6A Pending CN109967562A (en) | 2019-02-21 | 2019-02-21 | Heat rapid cooling d-axis method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109967562A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000176547A (en) * | 1998-12-16 | 2000-06-27 | Hiroji Toikawa | Stress relieving method for metal material |
| CN102039424A (en) * | 2009-10-10 | 2011-05-04 | 上海船厂船舶有限公司 | Method for straightening marine screw shaft |
| CN103521557A (en) * | 2013-10-17 | 2014-01-22 | 成都四威高科技产业园有限公司 | Arc-heating shape correction method for part of long-cylinder thin-wall structure |
| CN107486482A (en) * | 2017-08-03 | 2017-12-19 | 湘潭电机股份有限公司 | A kind of large-size machine rotating shaft Modeling Calculation type heat-straightening process method |
-
2019
- 2019-02-21 CN CN201910135425.6A patent/CN109967562A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000176547A (en) * | 1998-12-16 | 2000-06-27 | Hiroji Toikawa | Stress relieving method for metal material |
| CN102039424A (en) * | 2009-10-10 | 2011-05-04 | 上海船厂船舶有限公司 | Method for straightening marine screw shaft |
| CN103521557A (en) * | 2013-10-17 | 2014-01-22 | 成都四威高科技产业园有限公司 | Arc-heating shape correction method for part of long-cylinder thin-wall structure |
| CN107486482A (en) * | 2017-08-03 | 2017-12-19 | 湘潭电机股份有限公司 | A kind of large-size machine rotating shaft Modeling Calculation type heat-straightening process method |
Non-Patent Citations (4)
| Title |
|---|
| 刘兵等: "火焰矫正工艺参数的选择", 《金属热处理》 * |
| 刘须朋等: "大型同步电机主轴弯曲的火焰矫正", 《电机技术》 * |
| 夏成泉等: "火焰矫正电机转子轴弯曲变形", 《矿山机械》 * |
| 欧斯忠: "用5号焊嘴矫直活塞杆方法", 《机械工人.冷加工》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102581025B (en) | Slight center wave control method for straightness of hot rolling strip steel | |
| CN104349853B (en) | The expander manufacture method of metal tube | |
| CN105598217B (en) | The constant temperature and pressure aligning method of titanium alloy die forging part warpage | |
| JP2021109242A (en) | Device for straightening medium and heavy gage steel plate, and straightening method | |
| Zhao et al. | Control strategy of multi-point bending one-off straightening process for LSAW pipes | |
| CN101417292A (en) | Method for controlling rolling of medium and low grade electrical steel by means of conventional rolling model | |
| EP3040428B1 (en) | Batch annealing furnace for coils | |
| JP4701742B2 (en) | Metal strip shape prediction method, shape determination method based on predicted shape, and shape correction method | |
| CN109967562A (en) | Heat rapid cooling d-axis method | |
| CN112255093A (en) | Expansion joint tensile test device | |
| CN101935744A (en) | Method for sizing metal material mechanical part by phase change superplasticity | |
| CN105290162A (en) | Method for shape correction of high-temperature alloy thin-wall aeroengine casing part through electric arc heating | |
| KR900002504B1 (en) | Method of correcting warping of two-layer clad metal plate | |
| CN102886399A (en) | Method for fire tube bending of steel tube arch bridge | |
| CN106475748A (en) | A kind of curved round forming technology of square tube and frock | |
| JP4289480B2 (en) | Straightening method to obtain steel plate with good shape with little variation in residual stress | |
| CN116765172A (en) | Method for controlling deflection of H-shaped steel web | |
| CN108213120A (en) | The flexural deformation of high-precision steel part corrects modification method | |
| CN104226731B (en) | The method of heavy plate mill working roll backplate straightening | |
| JP4921989B2 (en) | Method for manufacturing straightened tempered workpiece | |
| CN106345855A (en) | Online flame straightening device and method of output shaft of KOCKS rolling mill | |
| CN109940068B (en) | Casting correcting process | |
| JP4762758B2 (en) | Linear heating method and linear heating control system | |
| CN110653266B (en) | Position control system and method for induction heating process of magnesium alloy plate strip | |
| CN102756018A (en) | Single-fin heat exchange tube sidewise bending calibrating device |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190705 |
|
| RJ01 | Rejection of invention patent application after publication |