CN115255278A - Casting process of alloy cylindrical thick-wall part - Google Patents
Casting process of alloy cylindrical thick-wall part Download PDFInfo
- Publication number
- CN115255278A CN115255278A CN202210937312.XA CN202210937312A CN115255278A CN 115255278 A CN115255278 A CN 115255278A CN 202210937312 A CN202210937312 A CN 202210937312A CN 115255278 A CN115255278 A CN 115255278A
- Authority
- CN
- China
- Prior art keywords
- cooling
- water
- water tank
- casting
- metal
- 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.)
- Pending
Links
Images
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
- B22C9/065—Cooling or heating equipment for moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/04—Influencing the temperature of the metal, e.g. by heating or cooling the mould
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Abstract
The invention discloses a casting process of an alloy cylindrical thick-walled part, which comprises a casting mold for casting the thick-walled part, wherein the casting mold comprises a casting bottom plate, a casting inner water tank and a casting outer water tank, the casting inner water tank and the casting outer water tank are both vertically arranged on the casting bottom plate, the casting outer water tank is provided with a cavity with a circular middle part, and the casting inner water tank is arranged in the middle of the outer water tank. The invention controls the water flow direction and speed inside and outside the inner and outer bimetal water tanks respectively, and the alloy metal liquid is forced to be rapidly solidified from bottom to top, thereby effectively improving the serious defect condition of ZA-27 cylindrical thick-wall parts.
Description
Technical Field
The invention relates to the technical field of alloy cylindrical thick-walled parts, in particular to a casting process of an alloy cylindrical thick-walled part.
Background
ZA-27 alloy is used as an excellent antifriction and wear-resistant material and is applied to relevant application markets by virtue of good service performance, processing performance and lower costPopular welcome and recognized. ZA-27 alloys have a wide range of crystallization temperatures, with as-formed alpha crystals precipitated due to the solid phase density (about 3 g/cm) 3 ) And liquid phase density (about 4.7 g/cm) 3 ) The difference is large, so that the primary phase floats upwards, the specific gravity segregation is caused, the bottom shrinkage phenomenon occurs, meanwhile, the solidification speed of the thick-wall part is high, the whole casting is loose, the shrinkage cavity is serious, and the yield is low.
Disclosure of Invention
The invention aims to overcome the defects of bottom shrinkage caused by cooling, longer solidification speed, looseness of the whole casting and serious shrinkage cavity in the prior art and provide a casting process of an alloy cylindrical thick-wall part.
The purpose of the invention is realized by the following technical scheme:
a casting process of an alloy cylindrical thick-wall part comprises the following steps:
s1, preparing materials: selecting corresponding metal simple substance raw materials;
s2, smelting: carrying out three-wheel refining deslagging on the prepared raw material in the S1 at the temperature of 600-700 ℃, and casting while keeping the temperature at 630-660 ℃;
s3, preparing a die: brushing zinc oxide on the contact surface of the die and the molten metal, baking and preheating;
s4, casting: casting the smelted high-temperature molten metal close to the upper opening of the mold, and casting the molten metal in the formed cavity;
s5, cooling: and controllably cooling the cast mould by controlling the flow rate of cooling water.
The die adopted by the invention comprises a casting bottom plate, an inner cooling part and an outer cooling part, wherein the inner cooling part and the outer cooling part are both vertically arranged at the upper part of the casting bottom plate, the inner cooling part is arranged at the middle part of the outer cooling part, and the outer cooling part and the inner cooling part are kept coaxial; and an outer cooling part is sleeved outside the inner cooling part.
The further technical scheme is that the inner cooling part and the outer cooling part are both metal annular water tanks which are hollow inside and are provided with water inlets and water outlets which are communicated up and down.
The further technical proposal is that the inner cooling part comprises an inner water-cooling metal water tank, the water inlet of the inner water-cooling metal water tank is arranged at the bottom of the inner water-cooling metal water tank, and the water outlet of the inner water-cooling metal water tank is arranged at the upper part of the inner water-cooling metal water tank;
the outer cooling part comprises an outer water-cooling metal water tank, the water inlet of the outer water-cooling metal water tank is arranged at the bottom of the outer water-cooling metal water tank, and the water outlet of the outer water-cooling metal water tank is arranged at the upper part of the outer water-cooling metal water tank.
The further technical scheme is that the cooling sequence is that water is injected into the inner water-cooling metal water tank firstly, then water is injected into the outer water-cooling metal water tank, and the cooling mode is carried out from bottom to top.
The further technical scheme is that the volume of the cavity of the outer water-cooling metal water tank is gradually increased from bottom to top.
The further technical proposal is that at least two water outlets are arranged.
The invention has the following advantages:
the invention controls the water flow direction and speed inside and outside the inner and outer bimetallic water tanks respectively, and the alloy metal liquid is forced to be rapidly solidified from bottom to top, thereby effectively improving the serious defect condition of ZA-27 cylindrical thick-wall parts.
Drawings
FIG. 1 is a schematic structural diagram of the present invention
FIG. 2 is a schematic view of the front view structure of the present invention
FIG. 3 isbase:Sub>A schematic cross-sectional view taken along the line A-A of FIG. 2 according to the present invention
In the figure, 1 is a casting bottom plate, 2 is an inner cooling part, and 3 is an outer cooling part.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without inventive efforts based on the embodiments of the present invention, are within the scope of protection of the present invention.
In addition, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or orientations or positional relationships that the products of the present invention conventionally lay out when in use, or orientations or positional relationships that are conventionally understood by those skilled in the art, which are merely for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.
As shown in fig. 1 to 3, a casting process of an alloy cylindrical thick-walled member, the casting process comprising the steps of:
s1, preparing materials: selecting corresponding metal elementary substance raw materials;
s2, smelting: carrying out three-wheel refining deslagging on the prepared raw material in the S1 at the temperature of 600-700 ℃, and casting while keeping the temperature at 630-660 ℃;
s3, preparing a die: brushing zinc oxide on the contact surface of the die and the molten metal, baking and preheating;
s4, casting: casting the smelted high-temperature molten metal close to the upper opening of the mold, and casting the molten metal in the formed cavity;
s5, cooling: and carrying out controllable cooling on the mold which is cast completely by controlling the flow rate of cooling water.
The mold adopted by the invention comprises a casting bottom plate 1, an inner cooling part 2 and an outer cooling part 3, wherein the inner cooling part 2 and the outer cooling part 3 are both vertically arranged at the upper part of the casting bottom plate 1, the inner cooling part 2 is arranged at the middle part of the outer cooling part 3, and the outer cooling part 3 and the inner cooling part 2 are coaxial; and the outer cooling part 3 is sleeved outside the inner cooling part 2.
In a preferred embodiment, the inner cooling part 2 and the outer cooling part 3 are both made of a metal ring-shaped water tank which is hollow inside and has a water inlet and a water outlet which are communicated with each other up and down, and the metal ring-shaped water tank is used as a mold in the form of a water tank, and when cooling is performed, cooling liquid is injected into the metal ring-shaped water tank for cooling.
As a preferred embodiment, the inner cooling part 2 comprises an inner water-cooling metal water tank, wherein a water inlet of the inner water-cooling metal water tank is arranged at the bottom of the inner water-cooling metal water tank, and a water outlet of the inner water-cooling metal water tank is arranged at the upper part of the inner water-cooling metal water tank;
As a preferred embodiment, the volume of the cavity of the outer water-cooling metal water tank is gradually increased from bottom to top, and when the outer water-cooling metal water tank is cooled from bottom to top, the capacity is gradually increased, the heat is taken away quickly, and the cooling effect is better.
As a preferred embodiment, the number of the water outlets is at least two, so that the discharge of cooling liquid is accelerated, and the cooling effect is better.
The working process of the invention is as follows:
the invention controls the water flow direction and speed inside and outside the inner and outer bimetal water tanks respectively, and the alloy metal liquid is forced to be rapidly solidified from bottom to top, thereby effectively improving the serious defect condition of ZA-27 cylindrical thick-wall parts.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof.
Claims (6)
1. A casting process of an alloy cylindrical thick-wall part comprises the following steps:
s1, preparing materials: selecting corresponding metal simple substance raw materials;
s2, smelting: carrying out three-wheel refining deslagging on the prepared raw material in the S1 at the temperature of 600-700 ℃, and casting while keeping the temperature at 630-660 ℃;
s3, preparing a die: brushing zinc oxide on the contact surface of the die and the molten metal, baking and preheating;
s4, casting: casting the smelted high-temperature molten metal close to the upper opening of the mold, and casting the molten metal in the formed cavity;
s5, cooling: and controllably cooling the cast mould by controlling the flow rate of cooling water.
The mold adopted by the invention comprises a casting bottom plate, an internal cooling part and an external cooling part, wherein the internal cooling part and the external cooling part are both vertically arranged at the upper part of the casting bottom plate, the internal cooling part is arranged in the middle of the external cooling part, and the external cooling part and the internal cooling part are coaxial; and an outer cooling part is sleeved outside the inner cooling part.
2. A casting process of an alloy cylindrical thick-walled member according to claim 1, wherein: the inner cooling part and the outer cooling part are both metal annular water tanks which are hollow inside and are provided with communicated water inlets and water outlets from top to bottom.
3. A casting process of an alloy cylindrical thick-walled member according to claim 2,
the inner cooling part comprises an inner water-cooling metal water tank, the water inlet of the inner water-cooling metal water tank is arranged at the bottom of the inner water-cooling metal water tank, and the water outlet of the inner water-cooling metal water tank is arranged at the upper part of the inner water-cooling metal water tank;
the outer cooling part comprises an outer water-cooling metal water tank, the water inlet of the outer water-cooling metal water tank is arranged at the bottom of the outer water-cooling metal water tank, and the water outlet of the outer water-cooling metal water tank is arranged at the upper part of the outer water-cooling metal water tank.
4. A casting process of an alloy cylindrical thick-walled member according to claim 3, wherein: the cooling sequence is that the inner water-cooling metal water tank is filled with water, then the outer water-cooling metal water tank is filled with water, and the cooling mode is carried out from bottom to top.
5. A casting process of an alloy cylindrical thick-walled member according to claim 3, wherein: the cavity volume of the outer water-cooling metal water tank is gradually increased from bottom to top.
6. A casting process of an alloy cylindrical thick-walled member according to claim 3, wherein: at least two water outlets are arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210937312.XA CN115255278A (en) | 2022-08-05 | 2022-08-05 | Casting process of alloy cylindrical thick-wall part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210937312.XA CN115255278A (en) | 2022-08-05 | 2022-08-05 | Casting process of alloy cylindrical thick-wall part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115255278A true CN115255278A (en) | 2022-11-01 |
Family
ID=83748033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210937312.XA Pending CN115255278A (en) | 2022-08-05 | 2022-08-05 | Casting process of alloy cylindrical thick-wall part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115255278A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117324574A (en) * | 2023-10-25 | 2024-01-02 | 黄山众友耐磨材料有限公司 | Vacuum casting box and bimetal thermal composite casting technology based on same |
-
2022
- 2022-08-05 CN CN202210937312.XA patent/CN115255278A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117324574A (en) * | 2023-10-25 | 2024-01-02 | 黄山众友耐磨材料有限公司 | Vacuum casting box and bimetal thermal composite casting technology based on same |
| CN117324574B (en) * | 2023-10-25 | 2024-05-31 | 黄山众友耐磨材料有限公司 | Vacuum casting box and bimetal thermal composite casting technology based on same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103170596B (en) | Multipurpose vacuum casting device | |
| CN110144472B (en) | Vacuum induction melting method of manganese-copper vibration-damping alloy | |
| CN101244454B (en) | Accurate casting method for metal leakage type suction pouring titanium master alloy | |
| CN101786156A (en) | Cooling method used for directional solidification and cooling device therefor | |
| CN100384568C (en) | Control method and device for continuous metal monocrystal casting process | |
| CN111057890B (en) | High-purity purification and high-homogenization casting method for magnesium alloy and magnesium-lithium alloy | |
| CN201300191Y (en) | Casting die used for smelting Sn-Ti alloy | |
| CN115255278A (en) | Casting process of alloy cylindrical thick-wall part | |
| US6640876B2 (en) | Method and apparatus for manufacturing copper and/or copper alloy ingot having no shrinkage cavity and having smooth surface without wrinkles | |
| CN110508777B (en) | Die casting method of vertical amorphous alloy die casting machine | |
| CN111774539B (en) | Preparation method of non-vacuum downward-drawing copper-zirconium alloy slab ingot | |
| CN104878443A (en) | Fusing and pouring method for pouring monocrystal casting | |
| CN201760583U (en) | Vacuum melting aluminum casting furnace | |
| CN107671258B (en) | A kind of vacuum centrifugal casting preparation method of zirconium-base amorphous alloy thin-wall part | |
| CN114850450A (en) | Refractory high-activity multi-element complex alloy suspension induction smelting negative-pressure suction casting device and method | |
| US20160265086A1 (en) | Method for producing eutectic copper-iron alloy | |
| CN214977629U (en) | Semi-solid pressure casting forming equipment | |
| CN113714490B (en) | Directional solidification device and method | |
| CN114734024A (en) | Liquid metal cooling vacuum precision casting furnace and working method | |
| CN112008056B (en) | High-speed steel roll and casting method thereof | |
| US6557618B1 (en) | Apparatus and method for producing castings with directional and single crystal structure and the article according to the method | |
| CN102896291B (en) | Front cover of car air conditioner compressor FS170C and casting method of front cover | |
| CN103008592B (en) | Oxygen-free copper casting blank crystallizer for up-drawn continuous casting | |
| CN220837816U (en) | Directional solidification casting system and directional solidification equipment | |
| CN221109796U (en) | Investment casting dust keeper |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |