CN112695259A - Casting process for producing hydraulic flange plate - Google Patents
Casting process for producing hydraulic flange plate Download PDFInfo
- Publication number
- CN112695259A CN112695259A CN202011503192.XA CN202011503192A CN112695259A CN 112695259 A CN112695259 A CN 112695259A CN 202011503192 A CN202011503192 A CN 202011503192A CN 112695259 A CN112695259 A CN 112695259A
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- CN
- China
- Prior art keywords
- blank
- cooling
- flange plate
- mold
- casting process
- 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.)
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Classifications
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/56—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.7% by weight of carbon
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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
- B22C9/24—Moulds for peculiarly-shaped castings for hollow articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C37/00—Cast-iron alloys
- C22C37/06—Cast-iron alloys containing chromium
- C22C37/08—Cast-iron alloys containing chromium with nickel
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C37/00—Cast-iron alloys
- C22C37/10—Cast-iron alloys containing aluminium or silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/34—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Forging (AREA)
Abstract
The invention relates to a casting process for producing a hydraulic flange plate, which comprises the following steps: (1) preparing materials; (2) smelting raw materials; (3) pouring a blank; (4) cooling and demolding; (5) forging; (6) and (6) finishing. According to the invention, the blank is prepared, forged for multiple times and then finish machined, so that the quality of the produced flange plate is ensured, and the production process is simple, the process arrangement is reasonable, and the working efficiency is high.
Description
Technical Field
The invention relates to the technical field of flange plate processing, in particular to a casting process for producing a hydraulic flange plate.
Background
The flange is a part for connecting the shafts and is used for connecting pipe ends; there are also flanges on the inlet and outlet of the device for connection between two devices. The flange is of a plurality of types and is widely used on the hydraulic cylinder. The existing flange plate is complex in production process, most of the flange plates are directly processed by using the existing steel ingots, the quality is not easy to master, and the flange plate has internal defects frequently, so that the service life is influenced.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a casting process for producing a hydraulic flange plate.
In order to achieve the purpose, the invention adopts the following technical scheme:
a casting process for producing a hydraulic flange plate comprises the following steps:
(1) preparing materials: the components are as follows according to the weight percentage:
carbon: 2-2.5%, silicon: 1.8-3.6%, manganese: 4-6%, sulfur: 0.1-0.3%, phosphorus: 0.1-0.3%, chromium: 1-2.4%, nickel: 1.2-2.2%, copper: 1.5-2.5%, the rest is iron;
(2) smelting raw materials: putting the raw materials in the step (1) into a smelting furnace for smelting, and melting the raw materials into mixed liquid;
(3) pouring a blank: preheating a pouring mold, and pouring the molten liquid in the step (2) into the mold for molding;
(4) cooling and demolding: after pouring and forming, primarily cooling the mold for 6-8h at the temperature of 550-650 ℃, then secondarily cooling to room temperature, demolding, and turning the mold after demolding to remove obvious defects on the surface;
(5) forging: forging the blank formed in the step (4) for 2-4 times until the size of the forged blank is 0.8-1.5mm of the size of the finished product;
(6) finish machining: and (5) drilling the blank forged in the step (5), polishing the outer surface and the inner wall of the hole of the blank after drilling, and cleaning after polishing to obtain a finished product.
In particular, the temperature of the smelting furnace in the step (2) is 1600-1700 ℃.
Particularly, the preheating temperature of the casting mold in the step (3) is 250-350 ℃.
Particularly, in the step (4), the primary cooling mode is air cooling, and the secondary cooling mode is water cooling.
Specifically, the blank is heated to 1150-1200 ℃ during forging in the step (5), and the temperature is kept for 8-14 min.
The invention has the beneficial effects that: according to the invention, the blank is prepared by adopting the raw materials, and is forged for multiple times and then is subjected to finish machining, so that the quality of the produced flange plate is ensured, and the production process is simple, the process arrangement is reasonable, and the working efficiency is high.
Detailed Description
The invention is further illustrated by the following examples:
example 1
A casting process for producing a hydraulic flange plate comprises the following steps:
(1) preparing materials: the components are as follows according to the weight percentage:
carbon: 2%, silicon: 1.8%, manganese: 4%, sulfur: 0.1%, phosphorus: 0.1%, chromium: 1%, nickel: 1.2%, copper: 1.5 percent of iron and 88.3 percent of iron;
(2) smelting raw materials: putting the raw materials in the step (1) into a smelting furnace for smelting, and melting the raw materials into mixed liquid;
(3) pouring a blank: preheating a pouring mold, and pouring the molten liquid in the step (2) into the mold for molding;
(4) cooling and demolding: after pouring and forming, primarily cooling the die for 6 hours at 550 ℃, then secondarily cooling the die to room temperature, demoulding, and turning the die after demoulding to remove obvious defects on the surface;
(5) forging: forging the blank formed in the step (4) for 2 times until the size of the forged blank is 0.8mm of the size of the finished product;
(6) finish machining: and (5) drilling the blank forged in the step (5), polishing the outer surface and the inner wall of the hole of the blank after drilling, and cleaning after polishing to obtain a finished product.
In particular, the temperature of the smelting furnace in the step (2) is 1600 ℃.
Particularly, the preheating temperature of the casting mold in the step (3) is 250 ℃.
Particularly, in the step (4), the primary cooling mode is air cooling, and the secondary cooling mode is water cooling.
Specifically, the blank is heated to 1150 ℃ during forging in the step (5), and the temperature is kept for 14 min.
Example 2
A casting process for producing a hydraulic flange plate comprises the following steps:
(1) preparing materials: the components are as follows according to the weight percentage:
carbon: 2.5%, silicon: 3.6%, manganese: 6% and sulfur: 0.3%, phosphorus: 0.3%, chromium: 2.4%, nickel: 2.2%, copper: 2.5 percent of iron and 80.2 percent of iron;
(2) smelting raw materials: putting the raw materials in the step (1) into a smelting furnace for smelting, and melting the raw materials into mixed liquid;
(3) pouring a blank: preheating a pouring mold, and pouring the molten liquid in the step (2) into the mold for molding;
(4) cooling and demolding: after pouring and forming, primarily cooling the die for 8 hours at 650 ℃, then secondarily cooling the die to room temperature, demoulding, and turning the die after demoulding to remove obvious defects on the surface;
(5) forging: forging the blank formed in the step (4) for 4 times until the size of the forged blank is 1.5mm of the size of the finished product;
(6) finish machining: and (5) drilling the blank forged in the step (5), polishing the outer surface and the inner wall of the hole of the blank after drilling, and cleaning after polishing to obtain a finished product.
In particular, the temperature of the smelting furnace in the step (2) is 1700 ℃.
In particular, the preheating temperature of the casting mold in the step (3) is 350 ℃.
Particularly, in the step (4), the primary cooling mode is air cooling, and the secondary cooling mode is water cooling.
Specifically, the blank is heated to 1200 ℃ during forging in the step (5), and the temperature is kept for 8 min.
Example 3
A casting process for producing a hydraulic flange plate comprises the following steps:
(1) preparing materials: the components are as follows according to the weight percentage:
carbon: 2.25%, silicon: 2.7%, manganese: 5%, sulfur: 0.2%, phosphorus: 0.2%, chromium: 1.7%, nickel: 1.7%, copper: 2%, iron 84.25%;
(2) smelting raw materials: putting the raw materials in the step (1) into a smelting furnace for smelting, and melting the raw materials into mixed liquid;
(3) pouring a blank: preheating a pouring mold, and pouring the molten liquid in the step (2) into the mold for molding;
(4) cooling and demolding: after pouring and forming, primarily cooling the mold for 7 hours at 600 ℃, then secondarily cooling to room temperature, demolding, and turning the mold after demolding to remove obvious defects on the surface;
(5) forging: forging the blank formed in the step (4) for 3 times until the size of the forged blank is 1.2mm of the size of the finished product;
(6) finish machining: and (5) drilling the blank forged in the step (5), polishing the outer surface and the inner wall of the hole of the blank after drilling, and cleaning after polishing to obtain a finished product.
In particular, the temperature of the smelting furnace in the step (2) is 1650 ℃.
Particularly, the preheating temperature of the casting mold in the step (3) is 300 ℃.
Particularly, in the step (4), the primary cooling mode is air cooling, and the secondary cooling mode is water cooling.
Specifically, the blank is heated to 1175 ℃ during forging in the step (5), and the temperature is kept for 11 min.
The invention has been described in an illustrative manner, and it is to be understood that the invention is not limited to the specific embodiments described above, but is intended to cover various modifications, which may be made by the methods and technical solutions of the invention, or may be applied to other applications without modification.
Claims (5)
1. A casting process for producing a hydraulic flange plate is characterized by comprising the following steps:
(1) preparing materials: the components are as follows according to the weight percentage:
carbon: 2-2.5%, silicon: 1.8-3.6%, manganese: 4-6%, sulfur: 0.1-0.3%, phosphorus: 0.1-0.3%, chromium: 1-2.4%, nickel: 1.2-2.2%, copper: 1.5-2.5%, the rest is iron;
(2) smelting raw materials: putting the raw materials in the step (1) into a smelting furnace for smelting, and melting the raw materials into mixed liquid;
(3) pouring a blank: preheating a pouring mold, and pouring the molten liquid in the step (2) into the mold for molding;
(4) cooling and demolding: after pouring and forming, primarily cooling the mold for 6-8h at the temperature of 550-650 ℃, then secondarily cooling to room temperature, demolding, and turning the mold after demolding to remove obvious defects on the surface;
(5) forging: forging the blank formed in the step (4) for 2-4 times until the size of the forged blank is 0.8-1.5mm of the size of the finished product;
(6) finish machining: and (5) drilling the blank forged in the step (5), polishing the outer surface and the inner wall of the hole of the blank after drilling, and cleaning after polishing to obtain a finished product.
2. A casting process for producing a hydraulic flange according to claim 1, wherein the temperature of the smelting furnace in the step (2) is 1600-.
3. A casting process for producing a hydraulic flange plate according to claim 2, wherein the preheating temperature of the casting mold in the step (3) is 250-350 ℃.
4. A casting process for producing a hydraulic flange plate according to claim 3, wherein in the step (4), the primary cooling mode is air cooling, and the secondary cooling mode is water cooling.
5. A casting process for producing a hydraulic flange plate as claimed in claim 4, wherein the blank is heated to 1150-1200 ℃ during forging in the step (5) and is subjected to heat preservation for 8-14 min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011503192.XA CN112695259A (en) | 2020-12-18 | 2020-12-18 | Casting process for producing hydraulic flange plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011503192.XA CN112695259A (en) | 2020-12-18 | 2020-12-18 | Casting process for producing hydraulic flange plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112695259A true CN112695259A (en) | 2021-04-23 |
Family
ID=75507478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011503192.XA Withdrawn CN112695259A (en) | 2020-12-18 | 2020-12-18 | Casting process for producing hydraulic flange plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112695259A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52156123A (en) * | 1976-06-18 | 1977-12-26 | Mahle Gmbh | Austenitic cast iron |
| JPS55141542A (en) * | 1979-04-19 | 1980-11-05 | Nissan Motor Co Ltd | Alloy cast iron with superior wear and galling resistances |
| CN1197702A (en) * | 1997-04-25 | 1998-11-04 | 张应宪 | Technological process of manufacturing steel flange blank |
| CN1404942A (en) * | 2002-10-25 | 2003-03-26 | 周发金 | Flange-processing formation technology |
| CN101092674A (en) * | 2007-07-20 | 2007-12-26 | 山东滨州渤海活塞股份有限公司 | Nitrogen contained austenitic cast iron in use for beset ring of piston |
| KR20120009172A (en) * | 2010-07-22 | 2012-02-01 | 현대자동차주식회사 | Flake Graphite Cast Iron with High Tensile Strength, Machinability and cylinder block for vehicle engine |
-
2020
- 2020-12-18 CN CN202011503192.XA patent/CN112695259A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52156123A (en) * | 1976-06-18 | 1977-12-26 | Mahle Gmbh | Austenitic cast iron |
| JPS55141542A (en) * | 1979-04-19 | 1980-11-05 | Nissan Motor Co Ltd | Alloy cast iron with superior wear and galling resistances |
| CN1197702A (en) * | 1997-04-25 | 1998-11-04 | 张应宪 | Technological process of manufacturing steel flange blank |
| CN1404942A (en) * | 2002-10-25 | 2003-03-26 | 周发金 | Flange-processing formation technology |
| CN101092674A (en) * | 2007-07-20 | 2007-12-26 | 山东滨州渤海活塞股份有限公司 | Nitrogen contained austenitic cast iron in use for beset ring of piston |
| KR20120009172A (en) * | 2010-07-22 | 2012-02-01 | 현대자동차주식회사 | Flake Graphite Cast Iron with High Tensile Strength, Machinability and cylinder block for vehicle engine |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210423 |
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| WW01 | Invention patent application withdrawn after publication |