CN107498265A - The preparation method of stainless steel brake pipe - Google Patents
The preparation method of stainless steel brake pipe Download PDFInfo
- Publication number
- CN107498265A CN107498265A CN201710131911.1A CN201710131911A CN107498265A CN 107498265 A CN107498265 A CN 107498265A CN 201710131911 A CN201710131911 A CN 201710131911A CN 107498265 A CN107498265 A CN 107498265A
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- China
- Prior art keywords
- workpiece
- electric
- stainless steel
- upsetting
- brake pipe
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- 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.)
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- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 18
- 239000010935 stainless steel Substances 0.000 title claims abstract description 18
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- 238000005242 forging Methods 0.000 claims abstract description 16
- 238000001125 extrusion Methods 0.000 claims abstract description 12
- 238000005452 bending Methods 0.000 claims abstract description 11
- 239000002918 waste heat Substances 0.000 claims abstract description 10
- 238000012545 processing Methods 0.000 claims abstract description 5
- 238000007689 inspection Methods 0.000 claims abstract description 4
- 238000004806 packaging method and process Methods 0.000 claims abstract description 4
- 238000007493 shaping process Methods 0.000 claims description 6
- 239000011257 shell material Substances 0.000 claims 2
- 230000005611 electricity Effects 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 17
- 238000003466 welding Methods 0.000 abstract description 8
- 238000005336 cracking Methods 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 description 9
- 239000010959 steel Substances 0.000 description 9
- 238000013461 design Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000005520 cutting process Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000003303 reheating Methods 0.000 description 2
- 241000233855 Orchidaceae Species 0.000 description 1
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000013528 metallic particle Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/04—Arrangements of piping, valves in the piping, e.g. cut-off valves, couplings or air hoses
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Forging (AREA)
Abstract
The present invention relates to a kind of preparation method of stainless steel brake pipe, comprise the following steps：1）Stainless steel shell blanking；2) the end deburring of workpiece two；3）Between the 1200oC of initial forging temperature 1100 being heated to electric upsetter in workpiece one end certain length, and one end of electric upsetting workpiece；4）Using the waste heat of electric upsetting, using one end of rapidform machine extrusion forming workpiece；5）Upper flange, and mounting flange are covered on workpiece, between being heated to the 1200oC of initial forging temperature 1100 in the other end certain length of workpiece using electric upsetter, and the other end of electric upsetting workpiece；6）Using the waste heat of electric upsetting, using the other end of rapidform machine extrusion forming workpiece；7）Two ends of workpiece carry out accurate Vehicle Processing, workpiece is reached the dimensional accuracy of needs；8）Bending is carried out to workpiece by bending machine, reaches the shape of needs；9）Product inspection, packaging.The present invention avoids weld cracking, and be made up of electric upsetting technique, guarantee structural strength without welding.
Description
Technical field
The present invention relates to a kind of preparation method of the stainless steel brake pipe for railway vehicle braking system.
Background technology
Current brake pipe, process with fittings body using steel pipe, finally formed by the way of welding respectively.Due to
The complexity of welding procedure, brake pipe is with easily forming shrinkage cavity or crackle in bump joint body welding process；Vehicle is in running
In, because vibration or car body elastic deformation are inconsistent, due to the unstability of weld strength, weld cracking or brake pipe can be caused
Fractureed in welding position.Because outer diameter of steel pipes is big, arm thickness, most thick only 3mm, head shaping is wanted, it is necessary to have larger product
Poly- amount, generally, the forging ratio of forging technology is 2~4, and can increase forging ratio by multiple die forging, but is needed
Want heating for multiple times, be metallic particles increase the problem of heating for multiple times, intensity decreases, product had adverse effect on.
The content of the invention
It is an object of the invention to provide a kind of without welding, weld cracking is avoided, and be made up of electric upsetting technique, guarantor
Demonstrate,prove the preparation method of the stainless steel brake pipe of structural strength.
In order to achieve the above object, the technical scheme is that：A kind of preparation method of stainless steel brake pipe, including such as
Lower step：
1）Stainless steel shell blanking；
2) the end deburring of workpiece two；
3）Between initial forging temperature 1100-1200 oC being heated to electric upsetter in workpiece one end certain length, and electric upsetting work
One end of part；
4）Using the waste heat of electric upsetting, using one end of rapidform machine extrusion forming workpiece；
5）Upper flange, and mounting flange are covered on workpiece, will be heated to using electric upsetter in the other end certain length of workpiece
Between initial forging temperature 1100-1200 oC, and the other end of electric upsetting workpiece；
6）Using the waste heat of electric upsetting, using the other end of rapidform machine extrusion forming workpiece；
7）Two ends of workpiece carry out accurate Vehicle Processing, workpiece is reached the dimensional accuracy of needs；
8）Bending is carried out to workpiece by bending machine, reaches the shape of needs；
9）Product inspection, packaging.
In stainless steel shell blanking, Workpiece length allowance control is in the range of ± 1mm
The electric upsetter will be heated to the oC of initial forging temperature 1150 in the end certain length of workpiece.
After technique using the present invention, increase electric upsetting technique before the end extrusion forming of workpiece, provided for end forging real
Existing basis；End shaping is carried out using the waste heat after electric upsetting, is not required to reheating, saves energy consumption, reduces pollution.Both ends are straight
Type is connected into, without welding, makes steel pipe and joint made in one piece, eliminates the defects of welding factor causes；In forming process,
Make the fiber flow direction of workpiece consistent with Impact direction, enhance the intensity of brake pipe stress, be improved reliability.
Brief description of the drawings
Fig. 1 is schematic diagram after workpiece blanking of the present invention；
Fig. 2 is the electric upsetting finished piece(s) one end schematic diagram of the present invention；
Fig. 3 is extrusion forming finished piece(s) one end schematic diagram of the present invention；
Fig. 4 is the electric upsetting finished piece(s) other end schematic diagram of the present invention；
Fig. 5 is extrusion forming finished piece(s) other end schematic diagram of the present invention.
Embodiment
The present invention is further detailed explanation for the embodiment provided below in conjunction with accompanying drawing.
A kind of preparation method of stainless steel brake pipe, comprises the following steps：It is shown in Figure 1, stainless steel shell blanking；
In order to improve operating efficiency, reduce cost, blanking equipment uses the semi-automatic pipe cutting machine with cutting stainless steel special saw blade, blanking
Length ensures that length tolerance is controlled in the range of ± 1mm by backer.
The end deburring of workpiece 1 two；Because blanking employs special pipe cutting machine, pipe end burr very little and few after cutting can be with
Removed quickly, easily by the method for craft.If burr removal in end is not net, in electric upsetting on steel tube end part and electric upsetter
Hammering block loose contact, it is uneven to produce pipe end heating, the problems such as a result causing compact dimensions and unstable shape.
It is shown in Figure 2, the oC of initial forging temperature 1150 will be heated in the one end certain length of workpiece 1 with electric upsetter, and
One end of electric upsetting workpiece 1；In order that the end wall thickness increase of workpiece 1, and differed greatly in view of the length of workpiece 1（4 meters of long left sides
The right side, short 200mm or so）Reason, process equipment uses special steel pipe electric upsetter；During electric upsetting, by stainless-steel pipe end one
The oC of initial forging temperature 1150 is heated in measured length, while is gradually gathered in end, head wall thickness is reached 12mm, ensures extruding
Size requirement after shaping.
Generally, electric upsetter hammering block working position is plane, but in electric this brake pipe of upsetting, in order to prevent internal diameter from becoming
Shape and inwall is prevented during electric upsetting to produce fold, it is necessary to special hammering block of the design with insert；And insert is set to stretch into workpiece 1
Endoporus, in order to prevent that electric current is had adverse effect on by insert to workpiece heat during electrically heated, insert must be resistance to
High temperature and insulation.
It is shown in Figure 3, using the waste heat of electric upsetting, one end extrusion forming of workpiece 1 is made using rapidform machine；Due to work
Part 1 is different in size, and process equipment uses special rapidform machine；This process carries out extrusion forming using the waste heat after electric upsetting, no
Reheating is needed, saves energy consumption, whole process must be completed within a short period of time, and otherwise temperature, which reduces, influences shaping.This work
The main function of sequence is to save material, reduces Vehicle Processing surplus, while refines material grains, and the fatigue for improving part is strong
Degree.
It is shown in Figure 4, cover upper flange 2 on workpiece 1, and mounting flange 2, using electric upsetter by the other end of workpiece 1
It is heated in portion's certain length between initial forging temperature 1150oC, and the other end of electric upsetting workpiece 1.
It is shown in Figure 5, using the waste heat of electric upsetting, it is molded using the other end of rapidform machine extrusion forming workpiece 1.By
Integral (type) flange 2 is carried above workpiece 1, so could the electric end of upsetting second after flange 2 must be inserted in before the electric upsetting other end；For
In electric upsetting do not make flange 2 arbitrarily movable in the progradation of workpiece 1, it is necessary to which electric upsetting can be just reliably completed by fixing flange 2
Process.
Then accurate Vehicle Processing is carried out to two ends of workpiece 1, workpiece 1 is reached the dimensional accuracy of needs；Process equipment is adopted
Use numerically controlled lathe；Due to existing flange 2 on part 1 and different in size, and the profile of flange 2 is larger to be passed through from spindle hole,
In process, the riding position of flange 2 can only be in front-end of spindle or rear end, so the process equipment of necessary design specialized；In order to
Ensure different length dimensions, it is necessary to the backer of design specialized；In order to prevent from disorderly getting rid of deformation during long steel pipe rotary and hurt sb.'s feelings,
The frock of necessary design specialized.
Then bending is carried out to workpiece 1 by bending machine, reaches the shape of needs；In order to improve dimensional accuracy after bend pipe,
Meet the requirement of brake pipe drawing size, bending shape device uses numerical control triaxial servo bending machine.Due to global approach is carried on steel pipe
Orchid 2, in order to prevent that flange 2 is arbitrarily movable, it is necessary to which flange 2 is fixed on to a certain position of equipment.But grown for straight flange on steel pipe
The shorter brake pipe of degree, it is necessary to consider before curved a certain angle, it is necessary to flange 2 is moved to the position curved, while in order to
Do not make flange 2 arbitrarily movable, it is necessary to be fixed on flange 2 on steel pipe with frock.These generate certain difficulty to bending.
Finally carry out product inspection, packaging.To production by the way of the combination of special gauge, three coordinates and infrared detector
Product are checked that the product for ensureing to provide meets drawing requirement.In order to prevent the feelings such as part collides with during transport etc., deforms
Condition occurs, it is necessary to designs, manufactures special working position apparatus.
Above-described is only the preferred embodiment of the present invention, it is noted that for one of ordinary skill in the art
For, without departing from the concept of the premise of the invention, various modifications and improvements can be made, these belong to the present invention
Protection domain.
Claims (3)
- A kind of 1. preparation method of stainless steel brake pipe, it is characterised in that：Comprise the following steps：1）Stainless steel shell blanking；2) workpiece（1）Two end deburrings；3）With electric upsetter by workpiece（1）It is heated in one end certain length between initial forging temperature 1100-1200 oC, and electricity Upsetting workpiece（1）One end；4）Using the waste heat of electric upsetting, using rapidform machine extrusion forming workpiece（1）One end shaping；5）Workpiece（1）Above cover upper flange（2）, and mounting flange（2）, using electric upsetter by workpiece（1）The other end it is certain It is heated in length between initial forging temperature 1100-1200 oC, and electric upsetting workpiece（1）The other end；6）Using the waste heat of electric upsetting, using rapidform machine extrusion forming workpiece（1）The other end shaping；7）Workpiece（1）Two ends carry out accurate Vehicle Processing, make workpiece（1）Reach the dimensional accuracy of needs；8）By bending machine to workpiece（1）Bending is carried out, reaches the shape of needs；9）Product inspection, packaging.
- 2. the preparation method of stainless steel brake pipe according to claim 1, it is characterised in that：Under stainless steel shell Material, workpiece（1）Length tolerance is controlled in the range of ± 1mm.
- 3. the preparation method of stainless steel brake pipe according to claim 1, it is characterised in that：The electric upsetter is by workpiece （1）End certain length in be heated to the oC of initial forging temperature 1150.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710131911.1A CN107498265A (en) | 2017-03-07 | 2017-03-07 | The preparation method of stainless steel brake pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710131911.1A CN107498265A (en) | 2017-03-07 | 2017-03-07 | The preparation method of stainless steel brake pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107498265A true CN107498265A (en) | 2017-12-22 |
Family
ID=60678268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710131911.1A Pending CN107498265A (en) | 2017-03-07 | 2017-03-07 | The preparation method of stainless steel brake pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107498265A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108637609A (en) * | 2018-05-23 | 2018-10-12 | 温州宏科汽配有限公司 | A kind of moulding process of engine hydraulic brake pipe |
| CN109483188A (en) * | 2019-01-14 | 2019-03-19 | 郑州工商学院 | A kind of technique manufacturing half shaft with flange plate with steel pipe |
| CN110465780A (en) * | 2019-07-30 | 2019-11-19 | 宝鸡市泛美材料科技有限公司 | A kind of manufacturing method of titanium or titanium alloy high pressure gas cylinder |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1158146A (en) * | 1997-08-26 | 1999-03-02 | Maruyasu Kogyo Kk | Method for inserting tube into long article and inserting machine thereof |
| EP1064181B1 (en) * | 1998-03-19 | 2002-09-11 | GE Harris Railway Electronics | Segmented brake pipe train control system and related methods |
| CN103586382A (en) * | 2013-11-12 | 2014-02-19 | 重庆大学 | Method and device for manufacturing double axle tube blanks at one time in a local electric upsetting mode |
| CN203628082U (en) * | 2013-12-20 | 2014-06-04 | 南车二七车辆有限公司 | Brake pipe for wagon |
| CN106282764A (en) * | 2016-08-11 | 2017-01-04 | 宁波市鄞州亚大汽车管件有限公司 | A kind of preparation method of brake pipe joint |
-
2017
- 2017-03-07 CN CN201710131911.1A patent/CN107498265A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1158146A (en) * | 1997-08-26 | 1999-03-02 | Maruyasu Kogyo Kk | Method for inserting tube into long article and inserting machine thereof |
| EP1064181B1 (en) * | 1998-03-19 | 2002-09-11 | GE Harris Railway Electronics | Segmented brake pipe train control system and related methods |
| CN103586382A (en) * | 2013-11-12 | 2014-02-19 | 重庆大学 | Method and device for manufacturing double axle tube blanks at one time in a local electric upsetting mode |
| CN203628082U (en) * | 2013-12-20 | 2014-06-04 | 南车二七车辆有限公司 | Brake pipe for wagon |
| CN106282764A (en) * | 2016-08-11 | 2017-01-04 | 宁波市鄞州亚大汽车管件有限公司 | A kind of preparation method of brake pipe joint |
Non-Patent Citations (1)
| Title |
|---|
| 蒋鹏、刘寒龙: "《金属塑性体积成形有限元模拟 QForm软件应用及案例分析》", 31 August 2015, 中国水利水电出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108637609A (en) * | 2018-05-23 | 2018-10-12 | 温州宏科汽配有限公司 | A kind of moulding process of engine hydraulic brake pipe |
| CN109483188A (en) * | 2019-01-14 | 2019-03-19 | 郑州工商学院 | A kind of technique manufacturing half shaft with flange plate with steel pipe |
| CN110465780A (en) * | 2019-07-30 | 2019-11-19 | 宝鸡市泛美材料科技有限公司 | A kind of manufacturing method of titanium or titanium alloy high pressure gas cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhang Guomin Inventor after: Wang Huimin Inventor after: Liu Zuhong Inventor after: Qiu Guorong Inventor after: Duan Xiangzhe Inventor after: Zhao Mingguang Inventor before: Zhao Mingguang Inventor before: Zhang Guomin Inventor before: Wang Weiping Inventor before: Liu Zuhong Inventor before: Duan Xiangzhe |
|
| CB03 | Change of inventor or designer information | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20171226 Address after: Yanling road 213000 Jiangsu city of Changzhou province No. 358 Applicant after: China Changjiang Vehicle Co Ltd Changzhou branch Applicant after: Changzhou Huiyang Technology Development Co., Ltd. Address before: 213000 Jiangsu Province, Changzhou city Wujin District Road No. 5 Zheng Lucheng Street Applicant before: Changzhou Huiyang Technology Development Co., Ltd. |
|
| TA01 | Transfer of patent application right | ||
| 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: 20171222 |
|
| RJ01 | Rejection of invention patent application after publication |