CN106001426B - A kind of yoke plate casting technique - Google Patents
A kind of yoke plate casting technique Download PDFInfo
- Publication number
- CN106001426B CN106001426B CN201610555576.3A CN201610555576A CN106001426B CN 106001426 B CN106001426 B CN 106001426B CN 201610555576 A CN201610555576 A CN 201610555576A CN 106001426 B CN106001426 B CN 106001426B
- Authority
- CN
- China
- Prior art keywords
- yoke plate
- melting
- casting
- raw material
- mold
- 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.)
- Expired - Fee Related
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/06—Permanent moulds for shaped castings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/06—Permanent moulds for shaped castings
- B22C9/061—Materials which make up the mould
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C1/00—Refining of pig-iron; Cast iron
- C21C1/08—Manufacture of cast-iron
Abstract
A kind of yoke plate casting technique, including first heat-resisting material being used to design a set of mold, the raw material for treating melting are put into crucible again and fill up agent with casting flaw and carry out melting after mixing, raw material after melting is poured into the mold through overbaking, it is finally demoulded, casting technique of the present invention eliminates yoke plate internal porosity shrinkage cavity defect, the spheroidal graphite cast-iron yoke plate stable quality produced and yoke plate dense internal organization, 1-2 grades of nodulizing grade, 6-8 grades of graphite size；Casting roughness can reach Ra25 μm；Mechanical processing of casting surplus can drop to 2.5mm, and the same period, production cost can reduce by 20~30% compared with forged steel yoke plate, save material；Stable processing technique, production is terse, and labor intensity is low, and production efficiency is high.
Description
Technical field
The present invention relates to casting technology fields, and in particular to a kind of yoke plate casting technique.
Background technology
Yoke plate is for connection to several insulator chains or multiple stress branches is assembled into whole plate shape connection gold utensil.
In existing industrial production, variously-shaped yoke plate is widely used, but material is forged steel pieces, and production cost is higher, because
This, produces spheroidal graphite cast-iron yoke plate, but the technique is in preparation there are also company using hard sand molding technical matters in recent years
There are following defects in the process：Since molten iron cooling leads to shrinkage porosite, the shrinkage cavity of cast-internal generation slowly in hard sand technique；Quality is not
Stablize, casting cooling velocity is slow, and interior tissue is not fine and close, and nodulizing grade is low (3 grades), and material is unstable；Casting of appearance of cast is coarse, casting
Part allowance is big, waste of materials, and machining cost is high；Production process is complicated, and labor intensity is big, low production efficiency；From
Animi resin dosage is big, and roughing sand dosage is big, leads to production cost height.
Invention content
The present invention is to solve the above problems, a kind of elimination yoke plate internal porosity of offer, the casting spheroidal graphite cast-iron yoke plate of shrinkage cavity
Casting technique, in this way can with the yoke plate part of batch micro operations high quality, so as to replace forged steel yoke plate, connection can be reduced
Plate production cost 20~30%.
The technical problems to be solved by the invention are realized using following technical solution：
A kind of yoke plate casting technique, includes the following steps：
(1) selects heat-resisting material to design a set of mold consistent with yoke plate shape；
(2) raw material for treating melting are put into crucible and fill up agent with casting flaw and are uniformly mixed by, and crucible is placed in vacuum
In the crucible for smelting room of induction furnace, the flushing of 4~8 times is first carried out to crucible for smelting room using inert gas, finally keeps crucible
The vacuum degree of working chamber is 10-5~10-3Mbar carries out melting, keeps the temperature 10~15min after the completion of melting so that each in raw material
Element is uniform；
(3) mold is fixed on shake table or turntable by, with 350~400 degrees Celsius of constant temperature, the heat of 50 hertz of frequency
Wind turbine carries out mold the baking of 2 hours or more；
(4) raw material after melting is poured into the mold through overbaking by, and the control duration of pouring was at 10~15 seconds；
(5) it is demoulded after moldings to be cooled, and grinding process is carried out with sand paper to cast outer surface；
Heat-resisting material in the step (1) is by high temperature oxidation resisting magnesium dust, and chromium oxide powder, magnesium sulfate powder is through height
Warm high pressure compression moulding.
Inert gas in the step (2) is nitrogen or argon gas.
Casting flaw is filled up agent and is made of the raw material proportioning of following parts by weight in the step (2)：5~10 parts of silica flour,
3~5 parts of silicon carbide powder, 4~7 parts of zirconium English powder.
Treat that melting raw material fill up agent in weight ratio 25~30 with casting flaw in the step (2):1.
Beneficial effects of the present invention are：Yoke plate internal porosity shrinkage cavity defect is eliminated, the spheroidal graphite cast-iron yoke plate matter produced
Amount stablizes and yoke plate dense internal organization, 1-2 grades of nodulizing grade, 6-8 grades of graphite size；Casting roughness can reach Ra25 μ
m；Mechanical processing of casting surplus can drop to 2.5mm, and the same period, production cost can reduce by 20~30% compared with forged steel yoke plate, save material；
Stable processing technique, production is terse, and labor intensity is low, and production efficiency is high.
Specific embodiment：
In order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, tie below
Embodiment is closed, the present invention is further explained.
Embodiment
(1) selects heat-resisting material to design a set of mold consistent with yoke plate shape；
(2) raw material for treating melting are put into crucible and fill up agent with casting flaw and are uniformly mixed by, and crucible is placed in vacuum
In the crucible for smelting room of induction furnace, the flushing of 4~8 times is first carried out to crucible for smelting room using inert gas, finally keeps crucible
The vacuum degree of working chamber is 10- 5~10-3Mbar carries out melting, keeps the temperature 10~15min after the completion of melting so that each in raw material
Element is uniform；
(3) mold is fixed on shake table or turntable by, with 350~400 degrees Celsius of constant temperature, the heat of 50 hertz of frequency
Wind turbine carries out mold the baking of 2 hours or more；
(4) raw material after melting is poured into the mold through overbaking by, and the control duration of pouring was at 10~15 seconds；
(5) it is demoulded after moldings to be cooled, and grinding process is carried out with sand paper to cast outer surface；
Heat-resisting material in the step (1) is by high temperature oxidation resisting magnesium dust, and chromium oxide powder, magnesium sulfate powder is through height
Warm high pressure compression moulding.
Inert gas in the step (2) is nitrogen or argon gas.
Casting flaw is filled up agent and is made of the raw material proportioning of following parts by weight in the step (2)：5~10 parts of silica flour,
3~5 parts of silicon carbide powder, 4~7 parts of zirconium English powder.
Treat that melting raw material fill up agent in weight ratio 25~30 with casting flaw in the step (2):1.
Basic principle, main feature and the advantages of the present invention of the present invention has been shown and described above.The technology of the industry
For personnel it should be appreciated that the present invention is not limited to the above embodiments, described in the above embodiment and specification is only the present invention
Preference, be not intended to limit the present invention, without departing from the spirit and scope of the present invention, the present invention also have it is various
Changes and improvements, these changes and improvements all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by institute
Attached claims and its equivalent thereof.
Claims (2)
1. a kind of yoke plate casting technique, which is characterized in that include the following steps：
(1) selects heat-resisting material to design a set of mold consistent with yoke plate shape；
(2) raw material for treating melting are put into crucible and fill up agent with casting flaw and are uniformly mixed by, and crucible is placed in vacuum induction
In the crucible for smelting room of stove, the flushing of 4~8 times is first carried out to crucible for smelting room using inert gas, finally keeps crucible for smelting
The vacuum degree of room carries out melting for 10-5~10-3mbar, keeps the temperature 10~15min after the completion of melting so that each element in raw material
Uniformly；
(3) mold is fixed on shake table or turntable by, with 350~400 degrees Celsius of constant temperature, the air-heater of 50 hertz of frequency
The baking of 2 hours or more is carried out to mold；
(4) raw material after melting is poured into the mold through overbaking by, and the control duration of pouring was at 10~15 seconds；
(5) it is demoulded after moldings to be cooled, and grinding process is carried out with sand paper to cast outer surface；
The heat-resisting material is by high temperature oxidation resisting magnesium dust, and chromium oxide powder, magnesium sulfate powder is through high temperature and pressure compression moulding；
The casting flaw is filled up agent and is made of the raw material proportioning of following parts by weight：5~10 parts of silica flour, silicon carbide powder 3~5
Part, 4~7 parts of zirconium English powder；
It is described that treat that melting raw material and casting flaw fill up agent in weight ratio be 25~30:1.
2. a kind of yoke plate casting technique as described in claim 1, it is characterised in that：Inert gas in the step (2) is
Nitrogen or argon gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610555576.3A CN106001426B (en) | 2016-07-14 | 2016-07-14 | A kind of yoke plate casting technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610555576.3A CN106001426B (en) | 2016-07-14 | 2016-07-14 | A kind of yoke plate casting technique |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106001426A CN106001426A (en) | 2016-10-12 |
| CN106001426B true CN106001426B (en) | 2018-06-19 |
Family
ID=57117861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610555576.3A Expired - Fee Related CN106001426B (en) | 2016-07-14 | 2016-07-14 | A kind of yoke plate casting technique |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106001426B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106378437A (en) * | 2016-11-04 | 2017-02-08 | 江苏金泰堡机械制造有限公司 | Aluminum alloy yoke plate manufacturing method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104128564A (en) * | 2014-08-20 | 2014-11-05 | 侯马市晋烽机械铸造有限公司 | Casting process of sand-lined metal mold cast nodular iron hinge lug |
| CN104550738A (en) * | 2013-10-25 | 2015-04-29 | 青岛和德隆机械有限公司 | Spheroidal graphite cast iron automobile gear water cooling copper alloy metal mold casting technology |
| CN105328125A (en) * | 2015-09-26 | 2016-02-17 | 侯马市晋烽机械铸造有限公司 | Casting method of rotor pressing ring for metro locomotive |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10314921A (en) * | 1997-05-13 | 1998-12-02 | Nippon Chuzo Kk | Cooling pipe cast-in casting steel product and its manufacture |
-
2016
- 2016-07-14 CN CN201610555576.3A patent/CN106001426B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104550738A (en) * | 2013-10-25 | 2015-04-29 | 青岛和德隆机械有限公司 | Spheroidal graphite cast iron automobile gear water cooling copper alloy metal mold casting technology |
| CN104128564A (en) * | 2014-08-20 | 2014-11-05 | 侯马市晋烽机械铸造有限公司 | Casting process of sand-lined metal mold cast nodular iron hinge lug |
| CN105328125A (en) * | 2015-09-26 | 2016-02-17 | 侯马市晋烽机械铸造有限公司 | Casting method of rotor pressing ring for metro locomotive |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106001426A (en) | 2016-10-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102978539B (en) | Burdening and preparation method for columnar crystal alnico permanent magnet alloy | |
| CN103143708B (en) | Preparation method of hard alloy preform and method for preparing composite wear-resistant part by using hard alloy preform | |
| CN105732014B (en) | A kind of silicon-base ceramic core preparation method | |
| CN107159887B (en) | Forming method of heating material based on microwave absorption | |
| CN103949640A (en) | Method for preparing NbSi-base ultrahigh-temperature alloy through EBM (Electron Beam Melting) | |
| CN108453243A (en) | A kind of ceramic-metal composites preparation method | |
| CN109049267B (en) | Ti-Fe micro powder coated multi-channel ceramic preform and preparation method and application thereof | |
| CN105817605A (en) | Functionally-graded wear-resistant iron-based composite material and preparation method thereof | |
| CN105732007B (en) | A kind of calcium oxide-based ceramic-mould fast preparation method for complex parts manufacture | |
| CN113443903A (en) | Preparation method of oversized cuboid fused quartz crucible and method for producing hollow square silicon core by using same | |
| CN101947648A (en) | Method for producing large zirconium and zirconium alloy casting | |
| CN102775160A (en) | Slag stopping weir for tundish and preparation method | |
| CN106001426B (en) | A kind of yoke plate casting technique | |
| CN106631050A (en) | Cleaning-free air brick with uniform structure and manufacturing method thereof | |
| CN105967692B (en) | Manufacturing method of silicon-nitride-combined silicon carbide ceramic crucible | |
| CN109095899B (en) | Preparation method of alumina-based ceramic particle preform | |
| CN104326757A (en) | Method for in-situ generation of mullite whisker reinforced air brick and mullite whisker reinforced air brick | |
| CN105084927B (en) | A kind of preparation method of ceramic honeycomb granule prefabricated section | |
| CN103553621B (en) | The preparation method of silicon carbide hydrogen collector | |
| CN102746004A (en) | Slag dam for aluminum-sol-combined tundish | |
| CN116199509A (en) | Toughened zirconia ceramic tundish nozzle for continuous casting of slabs, large square billets and rectangular billets and production process thereof | |
| CN110028313B (en) | Corundum crucible and preparation method thereof | |
| CN110834069A (en) | Sand casting method | |
| CN103011823A (en) | Ceramic crucible for galvanizing furnace and production method thereof | |
| CN104860686A (en) | Method for preparing magnesia-stabilized zirconia crucible through casting molding |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20190704 Granted publication date: 20180619 |
|
| PD01 | Discharge of preservation of patent | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20220704 Granted publication date: 20180619 |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180619 Termination date: 20200714 |