CN106001426A - Link plate casting technique - Google Patents
Link plate casting technique Download PDFInfo
- Publication number
- CN106001426A CN106001426A CN201610555576.3A CN201610555576A CN106001426A CN 106001426 A CN106001426 A CN 106001426A CN 201610555576 A CN201610555576 A CN 201610555576A CN 106001426 A CN106001426 A CN 106001426A
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- CN
- China
- Prior art keywords
- casting
- yoke plate
- crucible
- raw material
- melting
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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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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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Dental Prosthetics (AREA)
- Mold Materials And Core Materials (AREA)
- Tires In General (AREA)
Abstract
A link plate casting technique comprises the steps that firstly, a set of casting mould is designed through a high temperature resistant material, a raw material to be smelted is placed in a crucible and uniformly mixed with a casting flaw filling agent, then the mixture is smelted, the smelted raw material is poured into the baked casting mould, and finally the mould is removed. By means of the casting technique, the defects of shrinkage porosities and cavities inside a link plate are overcome, the nodular cast iron link plate manufactured through the technique is stable in quality and compact in interior texture, the nodulizing grade is grade 1 or grade 2, and the graphite size is grade 6-8; the roughness of the casting can reach Ra 25 [mu]m; the working allowance of the casting can be reduced to 2.5 mm; compared with a forged steel link plate, the production cost can be reduced by 20%-30%, and materials are saved; and the production process is stable, production is easy, the labor intensity of workers is low, and the production efficiency is high.
Description
Technical field
The present invention relates to casting technology field, be specifically related to a kind of yoke plate casting technique.
Background technology
Yoke plate is for connection to some insulator chains or multiple stress branch group is dressed up the plate shape connection gold utensil of entirety.In existing commercial production, variously-shaped yoke plate is widely used, but material is forged steel pieces, production cost is higher, therefore, the most also there are some companies to use hard sand molding technical matters to produce spheroidal graphite cast-iron yoke plate, but this technique exists following defect during preparation: in due to hard sand technique, molten iron cools down shrinkage porosite, the shrinkage cavity causing cast-internal to produce slowly；Quality is unstable, and foundry goods rate of cooling is slow, and interior tissue is the finest and close, nodulizing grade low (3 grades), and material is unstable；Casting of appearance of cast is coarse, and Mechanical processing of casting surplus is big, wastes material, and machining cost is high；Production process is complicated, and labor strength is big, and production efficiency is low；Self-hardening resin consumption is big, and roughing sand consumption is big, causes production cost high.
Summary of the invention
The present invention solves the problems referred to above, the casting technique of a kind of casting spheroidal graphite cast-iron yoke plate eliminating yoke plate internal porosity, shrinkage cavity is provided, adopt and with batch micro operations high-quality yoke plate part, thus forged steel yoke plate can be replaced in this way, it is possible to decrease yoke plate production cost 20～30%.
The technical problem to be solved uses following technical scheme to realize:
A kind of yoke plate casting technique, comprises the following steps:
(1). select exotic material to design a set of mold consistent with yoke plate shape；
(2). the raw material treating melting is put in crucible and fill up agent with casting flaw and mix homogeneously, the crucible for smelting that crucible is placed in vaccum sensitive stove is indoor, first using the flushing that noble gas carries out 4～8 times to crucible for smelting room, the final vacuum keeping crucible for smelting room is 10-5～10-3Mbar carries out melting, and melting is incubated 10～15min after completing so that each element in raw material is uniform；
(3). mold is fixed on vibration table or turntable, with the hot-air blower of constant temperature 350～400 degrees Celsius, frequency 50 hertz mold carried out the baking of more than 2 hours；
(4). the raw material after melting is poured in the mold of overbaking, controls the duration of pouring at 10～15 seconds；
(5). carry out the demoulding after molding to be cooled, and cast outer surface sand paper is carried out grinding process；
Exotic material in described step (1) is by high temperature oxidation resisting magnesium dust, chromium oxide powder, and magnesium sulfate powder is compressing through High Temperature High Pressure.
Noble gas in described step (2) is nitrogen or argon.
In described step (2), casting flaw is filled up agent and is made up of the proportioning raw materials of following weight portion: silica flour 5～10 parts, silicon carbide powder 3～5 parts, zirconium English powder 4～7 parts.
Described step (2) being treated, melting raw material and casting flaw fill up agent in weight ratio 25～30:1.
The invention have the benefit that and eliminate yoke plate internal porosity shrinkage cavity defect, the spheroidal graphite cast-iron yoke plate steady quality produced and yoke plate dense internal organization, nodulizing grade 12 grades, graphite size 68 grades；Foundry goods 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, saves material；Stable processing technique, produces terse, and labor strength is low, and production efficiency is high.
Detailed description of the invention:
For the technological means making the present invention realize, creation characteristic, reach purpose and be easy to understand with effect, below in conjunction with embodiment, the present invention is expanded on further.
Embodiment
(1). select exotic material to design a set of mold consistent with yoke plate shape；
(2). the raw material treating melting is put in crucible and fill up agent with casting flaw and mix homogeneously, the crucible for smelting that crucible is placed in vaccum sensitive stove is indoor, first using the flushing that noble gas carries out 4～8 times to crucible for smelting room, the final vacuum keeping crucible for smelting room is 10-5～10-3Mbar carries out melting, and melting is incubated 10～15min after completing so that each element in raw material is uniform；
(3). mold is fixed on vibration table or turntable, with the hot-air blower of constant temperature 350～400 degrees Celsius, frequency 50 hertz mold carried out the baking of more than 2 hours；
(4). the raw material after melting is poured in the mold of overbaking, controls the duration of pouring at 10～15 seconds；
(5). carry out the demoulding after molding to be cooled, and cast outer surface sand paper is carried out grinding process；
Exotic material in described step (1) is by high temperature oxidation resisting magnesium dust, chromium oxide powder, and magnesium sulfate powder is compressing through High Temperature High Pressure.
Noble gas in described step (2) is nitrogen or argon.
In described step (2), casting flaw is filled up agent and is made up of the proportioning raw materials of following weight portion: silica flour 5～10 parts, silicon carbide powder 3～5 parts, zirconium English powder 4～7 parts.
Described step (2) being treated, melting raw material and casting flaw fill up agent in weight ratio 25～30:1.
The ultimate principle of the present invention, principal character and advantages of the present invention have more than been shown and described.Skilled person will appreciate that of the industry; the present invention is not restricted to the described embodiments; the preference being only the present invention described in above-described embodiment and description; it is not intended to limit the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements both fall within scope of the claimed invention.Claimed scope is defined by appending claims and equivalent thereof.
Claims (5)
1. a yoke plate casting technique, it is characterised in that comprise the following steps:
(1). select exotic material to design a set of mold consistent with yoke plate shape；
(2). the raw material treating melting is put in crucible and fill up agent with casting flaw and mix homogeneously, crucible
The crucible for smelting being placed in vaccum sensitive stove is indoor, first uses noble gas that crucible for smelting room is carried out 4～8 times
Flushing, the final vacuum keeping crucible for smelting room is 10-5～10-3Mbar carries out melting, and melting completes
Rear insulation 10～15min so that each element in raw material is uniform；
(3). mold is fixed on vibration table or turntable, by constant temperature 350～400 degrees Celsius, frequency 50
The hot-air blower of hertz carries out the baking of more than 2 hours to mold；
(4). the raw material after melting is poured in the mold of overbaking, controls the duration of pouring 10～15
Second；
(5). carry out the demoulding after molding to be cooled, and cast outer surface sand paper is carried out grinding process.
2. a kind of yoke plate casting technique as claimed in claim 1, it is characterised in that: described step (1)
In exotic material by high temperature oxidation resisting magnesium dust, chromium oxide powder, magnesium sulfate powder is through High Temperature High Pressure
Compressing.
3. a kind of yoke plate casting technique as claimed in claim 1, it is characterised in that: described step (2)
In noble gas be nitrogen or argon.
4. a kind of yoke plate casting technique as claimed in claim 1, it is characterised in that: described step (2)
Middle casting flaw is filled up agent and is made up of the proportioning raw materials of following weight portion: silica flour 5～10 parts, carborundum powder
3～5 parts of end, zirconium English powder 4～7 parts.
5. a kind of yoke plate casting technique as claimed in claim 1, it is characterised in that: described step (2)
In to treat that melting raw material and casting flaw fill up agent in weight ratio be 25～30:1.
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 true CN106001426A (en) | 2016-10-12 |
| CN106001426B 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) |
Cited By (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 (4)
| 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 |
| 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 |
-
2016
- 2016-07-14 CN CN201610555576.3A patent/CN106001426B/en not_active Expired - Fee Related
Patent Citations (4)
| 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 |
| 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 |
Cited By (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 |
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| Publication number | Publication date |
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| CN106001426B (en) | 2018-06-19 |
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