CN105945233A - Casting forming method of impact resistant eccentric shaft - Google Patents
Casting forming method of impact resistant eccentric shaft Download PDFInfo
- Publication number
- CN105945233A CN105945233A CN201610355435.7A CN201610355435A CN105945233A CN 105945233 A CN105945233 A CN 105945233A CN 201610355435 A CN201610355435 A CN 201610355435A CN 105945233 A CN105945233 A CN 105945233A
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- CN
- China
- Prior art keywords
- eccentric shaft
- casting
- shock resistance
- coating
- wax
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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
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- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Compositions Of Oxide Ceramics (AREA)
Abstract
The invention provides a casting forming method of an impact resistant eccentric shaft. The casting forming method comprises the steps of firstly manufacturing a ceramic mold through utilizing a lost-wax process; then, preparing an impact resistant coating on the outer surface of the ceramic mold, so as to improve the impact resistance of the mold; then, injecting casting liquid into a pouring hole of the ceramic mold through pressurization; carrying out casting; and after casting, demolding, and carrying out follow-up treatment on a product. According to the casting forming method, a casting technology is improved, the new casting method is utilized to replace a traditional lathe machining technology, and the eccentric shaft with excellent impact resistance and long service life can be produced.
Description
Technical field
The present invention relates to engineering machinery field, specifically a kind of shock resistance type eccentric shaft casting and molding method.
Background technology
Eccentric shaft is the same with its name, its center not at the center of axis, general axle, can only drive workpiece rotation, but eccentric shaft, not only can transmit rotation, revolution can also be transmitted simultaneously.Eccentric shaft is fixing with on electric machine rotational axis generally by eccentric orfice, when electric motor starting, does cam motion.Therefore automobile, electromotor, pump etc. it are widely used in.
Owing to eccentric shaft is higher for required precision, the processing of current eccentric shaft uses lathe process more, adds the processing methods such as expansion sleeve method including Double Tops point method, three-jaw self-centering chuck shimming method, excentric sleeve method, excentric sleeve.The eccentric shaft precision that the benefit of Vehicle Processing is that production efficiency is high, process is higher, is suitable for large-scale production.The special eccentric shaft needing to be often subject to external impacts for some, the product that conventional Vehicle Processing goes out is shorter for often service life, needs frequently to change.
Summary of the invention
The present invention is to solve problem of the prior art, it is provided that a kind of shock resistance type eccentric shaft casting and molding method, the eccentric shaft shock resistance processed is outstanding, and service life is long.
One shock resistance type eccentric shaft casting and molding method of the present invention, comprises the following steps:
1) lost-wax process is utilized to manufacture ceramic die；
2) the thick shock resistance coating of one layer of 0.2-0.5cm is prepared at ceramic die outer surface；
3) in the plug hole of ceramic die, casting liquid is injected in pressurization, and pressure is 1.1-1.5 times of air pressure；
4) demoulding after cast molding, carries out heat treatment to product and surface processes.
Lost-wax process described in step 1) manufactures ceramic die and comprises the following steps, and first replicates eccentric shaft with wax, is then immersed in containing making waxed copy cover last layer outer ceramic in pottery pond, then melts the wax in mould afterwards, and detaches mold.
Step 2) described in shock resistance composite coating be the one in TiN coating, TiCN coating, TiAlN coating or TiAlCN gradient composite coating.
In traditional casting technique, owing to casting liquid is difficult to be evenly distributed in a mold, rear foundry goods of having cast easily produces bubble and cavity, affects the mechanical property of foundry goods.The present invention, by the way of pressurization, greatly reduces bubble and the generation in cavity in foundry goods.Owing to ceramic material is more crisp, therefore increase shock resistance coating at its outer surface, enable the pressure that mould produces when bearing pressurization casting.
The present invention has the beneficial effects that: improve foundry engieering, replaces traditional Vehicle Processing technique by new casting method, can produce shock resistance outstanding, service life length eccentric shaft.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the present invention will be further described.
Embodiment 1
A kind of shock resistance type eccentric shaft casting and molding method, comprises the following steps:
1) utilize lost-wax process to manufacture ceramic die, first replicate eccentric shaft with wax, be then immersed in containing pottery pond making waxed copy cover last layer outer ceramic, then melt the wax in mould afterwards, and detach mold.
2) physical vaporous deposition is utilized to prepare the thick TiN coating of one layer of 0.2cm at ceramic die outer surface；
3) in the plug hole of ceramic die, casting liquid is injected in pressurization, and pressure is 1.1 times of air pressure；
4) demoulding after cast molding, carries out heat treatment to product and surface processes.
Embodiment 2
A kind of shock resistance type eccentric shaft casting and molding method, comprises the following steps:
1) utilize lost-wax process to manufacture ceramic die, first replicate eccentric shaft with wax, be then immersed in containing pottery pond making waxed copy cover last layer outer ceramic, then melt the wax in mould afterwards, and detach mold.
2) physical vaporous deposition is utilized to prepare the thick TiAlN coating of one layer of 0.3cm at ceramic die outer surface；
3) in the plug hole of ceramic die, casting liquid is injected in pressurization, and pressure is 1.3 times of air pressure；
4) demoulding after cast molding, carries out heat treatment to product and surface processes.
Embodiment 3
A kind of shock resistance type eccentric shaft casting and molding method, comprises the following steps:
1) utilize lost-wax process to manufacture ceramic die, first replicate eccentric shaft with wax, be then immersed in containing pottery pond making waxed copy cover last layer outer ceramic, then melt the wax in mould afterwards, and detach mold.
2) double brightness plasma method is utilized to prepare the thick TiAlCN gradient composite coating of one layer of 0.5cm at ceramic die outer surface；
3) in the plug hole of ceramic die, casting liquid is injected in pressurization, and pressure is 1.5 times of air pressure；
4) demoulding after cast molding, carries out heat treatment to product and surface processes.
The concrete application approach of the present invention is a lot, and the above is only the preferred embodiment of the present invention, it should be pointed out that; for those skilled in the art; under the premise without departing from the principles of the invention, it is also possible to make some improvement, these improvement also should be regarded as protection scope of the present invention.
Claims (4)
1. a shock resistance type eccentric shaft casting and molding method, it is characterised in that comprise the following steps:
1) lost-wax process is utilized to manufacture ceramic die；
2) the thick shock resistance coating of one layer of 0.2-0.5cm is prepared at ceramic die outer surface；
3) in the plug hole of ceramic die, casting liquid is injected in pressurization, and pressure is 1.1-1.5 times of air pressure；
4) demoulding after cast molding, carries out heat treatment to product and surface processes.
Shock resistance type eccentric shaft casting and molding method the most according to claim 1, it is characterized in that: the lost-wax process described in step 1) manufactures ceramic die and comprises the following steps, first replicate eccentric shaft with wax, it is then immersed in making waxed copy cover last layer outer ceramic containing in pottery pond, melt the wax in mould the most afterwards, and detach mold.
Shock resistance type eccentric shaft casting and molding method the most according to claim 1, it is characterised in that: step 2) described in shock resistance composite coating be the one in TiN coating, TiCN coating, TiAlN coating or TiAlCN gradient composite coating.
4. according to the shock resistance type eccentric shaft casting and molding method described in claim 1, it is characterised in that: step 2) described in the preparation method of shock resistance coating be the one in physical vaporous deposition, chemical meteorology deposition method, double brightness plasma method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610355435.7A CN105945233A (en) | 2016-05-26 | 2016-05-26 | Casting forming method of impact resistant eccentric shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610355435.7A CN105945233A (en) | 2016-05-26 | 2016-05-26 | Casting forming method of impact resistant eccentric shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105945233A true CN105945233A (en) | 2016-09-21 |
Family
ID=56909711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610355435.7A Pending CN105945233A (en) | 2016-05-26 | 2016-05-26 | Casting forming method of impact resistant eccentric shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105945233A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107695301A (en) * | 2017-11-10 | 2018-02-16 | 安徽理工大学 | Shell, sand casting mold and its component rotary type drying device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS579572A (en) * | 1980-06-20 | 1982-01-19 | Daido Steel Co Ltd | Casting method |
| JPS58157548A (en) * | 1982-03-15 | 1983-09-19 | Toshiba Corp | Production of mold |
| CN1217958A (en) * | 1997-11-26 | 1999-06-02 | 北京航空航天大学 | Process for making cores for casting process |
| CN201164900Y (en) * | 2008-02-29 | 2008-12-17 | 肇庆市广盛铸业有限公司 | Composite metal mould |
| CN101480699A (en) * | 2009-01-23 | 2009-07-15 | 湖南天雁机械有限责任公司 | Method for manufacturing turbo-charger blower impeller mold |
-
2016
- 2016-05-26 CN CN201610355435.7A patent/CN105945233A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS579572A (en) * | 1980-06-20 | 1982-01-19 | Daido Steel Co Ltd | Casting method |
| JPS58157548A (en) * | 1982-03-15 | 1983-09-19 | Toshiba Corp | Production of mold |
| CN1217958A (en) * | 1997-11-26 | 1999-06-02 | 北京航空航天大学 | Process for making cores for casting process |
| CN201164900Y (en) * | 2008-02-29 | 2008-12-17 | 肇庆市广盛铸业有限公司 | Composite metal mould |
| CN101480699A (en) * | 2009-01-23 | 2009-07-15 | 湖南天雁机械有限责任公司 | Method for manufacturing turbo-charger blower impeller mold |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107695301A (en) * | 2017-11-10 | 2018-02-16 | 安徽理工大学 | Shell, sand casting mold and its component rotary type drying device |
| CN107695301B (en) * | 2017-11-10 | 2024-03-15 | 安徽理工大学 | Shell, sand casting mould and rotatable drying device for components of sand casting mould |
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| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160921 |