CN108044047B - A kind of EU criteria high manganese steel frog casting technique - Google Patents
A kind of EU criteria high manganese steel frog casting technique Download PDFInfo
- Publication number
- CN108044047B CN108044047B CN201711079241.XA CN201711079241A CN108044047B CN 108044047 B CN108044047 B CN 108044047B CN 201711079241 A CN201711079241 A CN 201711079241A CN 108044047 B CN108044047 B CN 108044047B
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- CN
- China
- Prior art keywords
- technique
- rail
- riser
- manganese steel
- high manganese
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- 238000000034 method Methods 0.000 title claims abstract description 46
- 229910000617 Mangalloy Inorganic materials 0.000 title claims abstract description 28
- 238000005266 casting Methods 0.000 title claims abstract description 23
- 238000004321 preservation Methods 0.000 claims abstract description 10
- 238000003754 machining Methods 0.000 claims abstract description 8
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000002893 slag Substances 0.000 abstract description 4
- 238000012360 testing method Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 241000269350 Anura Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- FFBHFFJDDLITSX-UHFFFAOYSA-N benzyl N-[2-hydroxy-4-(3-oxomorpholin-4-yl)phenyl]carbamate Chemical compound OC1=C(NC(=O)OCC2=CC=CC=C2)C=CC(=C1)N1CCOCC1=O FFBHFFJDDLITSX-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003031 feeding effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/22—Moulds for peculiarly-shaped castings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/08—Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
- B22C9/088—Feeder heads
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Heat Treatment Of Articles (AREA)
- Piles And Underground Anchors (AREA)
- Escalators And Moving Walkways (AREA)
Abstract
A kind of EU criteria high manganese steel frog casting technique, including following technique: the solderable end process of rail: rail head top surface and two sides working edge are covered with bright chill；Web section amount of machining: toe-end presses 1:10 and 1:4, and heel end is made by the gradient of 1:15；The amount of machining of rail bottom is made by 15mm, and heat preservation riser technique is taken in rail bottom centre；Wheel drive area technique: riser is set at wing rail rail wall and is subsidized directly to the progress feeding of wing rail top surface；Changes of section area technique: design 50mm thickness riser subsidy, increase its Feeding channel, cooperate heat preservation riser technique, the self-protected tub high manganese steel frog made by new process is that the high manganese steel frog Internal Quality of Cast of execution EU criteria (EN15689-2009) can satisfy standard requirements.Second is that being able to solve the useless casting flaw of the causes such as stomata, slag inclusion, shrinkage cavity existing for the high manganese steel frog casting for executing EU criteria, railway frog casting qualified rate is improved.
Description
Technical field
The present invention relates to novel high manganese steel frog manufacturing process more particularly to a kind of EU criteria high manganese steel frog founders
Skill.
Background technique
China's production high manganese steel frog has had more than 40 years knowhows.Every monthly average produces more than 1200 roots, annual output
Up to 15000 high manganese steel frogs.The countries in the world such as products export North America, South Korea, Indonesia, Saudi Arabia, Egypt, Turkey, Hong Kong are each
Area, the standard of execution is up to more than ten.Currently, EU criteria (EN15689-2009) be at present require in the world it is most stringent of
High manganese steel frog casting standard, primarily directed in terms of internal soundness.The casting of EU criteria (EN15689-2009) high manganese steel frog
European market will be developed for China by making succeeding in developing for technique, this has the long term growth of China railways equipment highly important
Meaning.
Summary of the invention
The casting flaws such as stomata, slag inclusion, shrinkage cavity existing for a kind of what the present invention related to be designed to provide solution casting, make to cast
Part internal soundness meets the high manganese steel frog casting technique of EU criteria requirement.
In order to solve the above technical problems, the present invention, which relates to, provides a kind of EU criteria high manganese steel frog casting technique, including with
Lower technique:
The solderable end process of rail:
Rail head top surface and two sides working edge are covered with bright chill；Web section amount of machining: toe-end presses 1:10 and 1:4, heel end
It is made by the gradient of 1:15；The amount of machining of rail bottom is made by 15mm, and heat preservation riser technique is taken in rail bottom centre；
Wheel drive area technique:
Riser is arranged at wing rail rail wall to subsidize directly to the progress feeding of wing rail top surface；
Changes of section area technique:
The subsidy of 50mm thickness riser is designed, its Feeding channel is increased, cooperates heat preservation riser technique.
Present invention improvement has, and wheel drive area technique riser spacing is controlled in 250mm.
Present invention improvement has, and the diameter of changes of section area technique heat preservation riser is 150mm.
Present invention improvement has, and changes of section area technique riser is with a thickness of 50mm.
What the present invention related to has the beneficial effect that the self-protected tub high manganese steel frog made by new process, is to execute European Union
The high manganese steel frog Internal Quality of Cast of standard (EN15689-2009) can satisfy standard requirements.Europe is executed second is that being able to solve
The causes such as stomata, slag inclusion, shrinkage cavity existing for the high manganese steel frog casting of alliance's standard are given up casting flaw, and railway frog casting qualified rate is improved,
According to current yield, more than 20 root of rescission can be monthly saved, generates directly or indirectly 200 Yu Wanyuan of economic value in year.
Detailed description of the invention
Attached drawing 1 is the structural schematic diagram of the solderable end of rail of high manganese steel frog of the invention；
Attached drawing 2 is the structural schematic diagram in the wheel drive area of high manganese steel frog of the invention；
Attached drawing 3 is the D-D sectional view of high manganese steel frog of the invention；
Attached drawing 4 is the structural schematic diagram in the changes of section area of high manganese steel frog of the invention.
Label declaration: B- riser
Specific embodiment
A kind of technology contents of EU criteria high manganese steel frog casting technique, construction feature, institute for the present invention will be described in detail
Realize purpose and effect, it demonstrates concretely with reference to embodiment and drawing.
The present invention, which relates to, provides a kind of EU criteria high manganese steel frog casting technique, including following technique, wheel drive area, and
Changes of section area, specific as follows:
The solderable end of rail:
Referring to attached drawing 1, in traditional handicraft, rail top is covered with bright chill, and the web of the rail and rail bottom are respectively 5mm processing capacity, does not design
Gradient, and using insulated feeder, testing for internal quality is mostly IV grade, and the I grade of standard requirements is not achieved.This to technique into
It has gone a large amount of test, has found out the technical measures for that standard requirements can be reached.
That is, rail head top surface and two sides working edge are covered with bright chill；Web section amount of machining: toe-end presses 1:10 and 1:4,
Heel end is made by the gradient of 1:15；The amount of machining of rail bottom A is made by 15mm, and heat preservation riser B is taken in rail bottom centre
Technique；
Wheel drive area:
Complicated referring to attached drawing 2 and the portion structure of attached drawing 3, changes of section is big, the casting such as stomata, shrinkage cavity and slag inclusion easily occurs
Defect.
In traditional handicraft, in the design riser subsidy of wheel rim trench bottom, feeding is carried out to wing rail top surface by wing rail working edge,
And the distance between riser does not have unified standard, between 200mm-350mm etc., testing for internal quality is not the result is that reach
Standard requirements, and often there is V grade of defect.
Novel process, 1, change original Feeding channel, be arranged at wing rail rail wall riser B subsidize directly to wing rail top surface into
Row feeding, greatly improves feeding effect.
2, standard requirements can be reached in 250mm by testing, summing up to control come the riser B spacing of design.Section
Variation zone.
Changes of section area:
Referring to attached drawing 4, within the scope of changes of section 280mm, it is the web of the rail, rail wall and rail top (rail bottom) three wall intersection, is whole
Most one of difficult point of a railway frog Internal Quality of Cast control.
In traditional handicraft, the riser subsidy of 20mm thickness is designed at this, the technique of the insulated feeder of diameter 160mm is cooperated to arrange
It applies, as a result shrinkage cavity and gas hole defect easily occurs at this, cannot guarantee that internal soundness is up to standard.
Novel process 1, design 50mm thickness riser B subsidy, increase its Feeding channel, and are conducive to gas and float and be discharged.
2, cooperate diameter 150mm heat preservation riser B technique, increase feeding of its riser B to the position.
The foregoing is merely the embodiments that the present invention relates to, and are not intended to limit the scope of the patents that the present invention relates to, all utilizations
The present invention relates to equivalent structure or equivalent flow shift made by specification and accompanying drawing content, is applied directly or indirectly in other phases
The technical field of pass similarly includes in the scope of patent protection of this EU criteria high manganese steel frog casting technique.
Claims (4)
1. a kind of EU criteria high manganese steel frog casting technique, which is characterized in that including following technique:
The solderable end process of rail:
Rail head top surface and two sides working edge are covered with bright chill；Web section amount of machining: toe-end presses 1:10 and 1:4, and heel end presses 1:
15 gradient production；The amount of machining of rail bottom is made by 15mm, and heat preservation riser technique is taken in rail bottom centre；
Wheel drive area technique:
Riser is arranged at wing rail rail wall to subsidize directly to the progress feeding of wing rail top surface；
Changes of section area technique:
The subsidy of 50mm thickness riser is designed, its Feeding channel is increased, cooperates heat preservation riser technique.
2. a kind of EU criteria high manganese steel frog casting technique according to claim 1, which is characterized in that wheel drive area
Technique riser spacing is controlled in 250mm.
3. a kind of EU criteria high manganese steel frog casting technique according to claim 1, which is characterized in that changes of section area
The diameter of technique heat preservation riser is 150mm.
4. a kind of EU criteria high manganese steel frog casting technique according to claim 1, which is characterized in that changes of section area
Technique riser is with a thickness of 50mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711079241.XA CN108044047B (en) | 2017-11-06 | 2017-11-06 | A kind of EU criteria high manganese steel frog casting technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711079241.XA CN108044047B (en) | 2017-11-06 | 2017-11-06 | A kind of EU criteria high manganese steel frog casting technique |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108044047A CN108044047A (en) | 2018-05-18 |
| CN108044047B true CN108044047B (en) | 2019-06-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711079241.XA Active CN108044047B (en) | 2017-11-06 | 2017-11-06 | A kind of EU criteria high manganese steel frog casting technique |
Country Status (1)
| Country | Link |
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| CN (1) | CN108044047B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112024821B (en) * | 2020-08-07 | 2022-04-01 | 中国铁建重工集团股份有限公司道岔分公司 | Frog mould, frog pouring method and frog casting |
| CN113020547A (en) * | 2021-02-23 | 2021-06-25 | 共享铸钢有限公司 | Casting process of rotating wheel with shaft |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5595361A (en) * | 1995-11-22 | 1997-01-21 | Abc Rail Products Corporation | Wing rail hold-down |
| CN1583324A (en) * | 2004-06-04 | 2005-02-23 | 中国科学院金属研究所 | High manganese steel railway assembled frog centre rail casting process |
| CN101491829A (en) * | 2009-02-20 | 2009-07-29 | 中国科学院金属研究所 | Casting technique of grain refined solid manganese steel frog of long life |
| CN202804097U (en) * | 2012-09-14 | 2013-03-20 | 中铁山桥集团有限公司 | Toe-end cast structure of block-cast high manganese steel frog |
| CN106400618A (en) * | 2015-07-27 | 2017-02-15 | 浙江德盛铁路器材股份有限公司 | Double-alloy integrally-forged frog and manufacture method thereof |
-
2017
- 2017-11-06 CN CN201711079241.XA patent/CN108044047B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5595361A (en) * | 1995-11-22 | 1997-01-21 | Abc Rail Products Corporation | Wing rail hold-down |
| CN1583324A (en) * | 2004-06-04 | 2005-02-23 | 中国科学院金属研究所 | High manganese steel railway assembled frog centre rail casting process |
| CN101491829A (en) * | 2009-02-20 | 2009-07-29 | 中国科学院金属研究所 | Casting technique of grain refined solid manganese steel frog of long life |
| CN202804097U (en) * | 2012-09-14 | 2013-03-20 | 中铁山桥集团有限公司 | Toe-end cast structure of block-cast high manganese steel frog |
| CN106400618A (en) * | 2015-07-27 | 2017-02-15 | 浙江德盛铁路器材股份有限公司 | Double-alloy integrally-forged frog and manufacture method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 出口北美高锰钢辙叉铸造工艺设计;徐瑞祥;《铸造技术》;20020131;第40-41页 |
| 发热冒口在高锰钢辙叉上的应用;张绍彤;《铁道技术监督》;20090930;第30-34页 |
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|---|---|
| CN108044047A (en) | 2018-05-18 |
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