CN113275512A - Method for improving technological yield of static pressure molding line - Google Patents
Method for improving technological yield of static pressure molding line Download PDFInfo
- Publication number
- CN113275512A CN113275512A CN202110556428.4A CN202110556428A CN113275512A CN 113275512 A CN113275512 A CN 113275512A CN 202110556428 A CN202110556428 A CN 202110556428A CN 113275512 A CN113275512 A CN 113275512A
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- CN
- China
- Prior art keywords
- cup
- mouth
- static pressure
- pouring
- pressure molding
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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
- B22C9/08—Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
- B22C9/082—Sprues, pouring cups
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
Abstract
The invention relates to a casting process, in particular to a method for improving the process yield of a static pressure molding line, which specifically uses an improved pouring cup, wherein the improved pouring cup is provided with a cup opening, the inner ring of the cup opening is provided with a step opening, a hemispherical pouring gate is arranged in the step opening, and the bottom of the pouring gate is provided with an outlet; the height difference between the cup mouth and the step mouth is 10-50mm, and the inner diameter difference between the cup mouth and the step mouth is 5-10 mm. The invention can improve the casting process yield of the static pressure molding line and has better economic benefit.
Description
Technical Field
The invention relates to a casting process, in particular to a method for improving the process yield of a static pressure moulding line.
Background
The static pressure molding line is the main equipment for sand mold casting, and a sand mold (casting mold) is manufactured through a molding machine and a mold and matched with a sand core to form a cavity. The metal liquid flows into the die cavity gradually through the pouring cup, the sprue, the cross gate, the ingate and other units of the casting mould, and a casting is formed after the metal liquid is filled and solidified.
The process yield is the ratio of the weight of the casting to the weight of the casting plus the pouring system, and is an index for measuring the economical efficiency of the casting process. The higher the process yield, the less the molten metal used in the non-casting parts of the gating system, the less waste, and the better the economics. For a particular casting, the process yield can only be increased by reducing the weight of the gating system. The existing method for improving the process yield in the casting field usually directly reduces the sectional area of each unit of the gating system, but the change of the pouring speed and the change of other parameters of the gating system can cause the quality of castings to be reduced and even cause unreliation.
Disclosure of Invention
The invention improves the process yield by designing a unique pouring cup structure, does not influence the parameters of a pouring system and ensures that the quality of castings is not reduced. The specific technical scheme is as follows:
a method for improving the technological yield of a static pressure molding line uses an improved pouring cup in the static pressure molding line technology, the improved pouring cup is provided with a cup opening, the inner ring of the cup opening is provided with a step opening, a hemispherical pouring gate is arranged in the step opening, and the bottom of the pouring gate is provided with an outlet; the height difference between the cup mouth and the step mouth is 10-50mm, and the inner diameter difference between the cup mouth and the step mouth is 5-10 mm.
Further, the outlet is conical, and the diameter ratio of the outlet to the cup mouth is 1: 3-5.
Further, the height difference between the cup mouth and the step mouth is preferably 30mm, and the inner diameter difference between the cup mouth and the step mouth is preferably 8 mm.
Further, the cup mouth and the step mouth are set to be in any shape required by the process.
Further, the cup mouth and the step mouth are arranged to be round or square.
The sprue cup is designed into a concentric circle or a concentric square with a height difference between an inner ring and an outer ring, the outer ring is consistent with or slightly smaller than the maximum diameter of an original sprue, the inner ring is smaller than the diameter of the original sprue, and the height of the inner ring is 10-50mm smaller than that of the outer ring, which is related to the weight of a cast. The volume of the newly designed pouring cup is smaller than that of the original pouring cup, but the static pressure head height is unchanged, and the height H is unchanged, so that the pressure in a pouring system is kept unchanged, and the quality of a casting cannot be adversely affected; other parts of the pouring system, such as a sprue, a cross runner, an ingate, a riser, an exhaust sheet and the like, are reduced in number or volume properly on the principle of not influencing the quality of the casting.
The invention has the beneficial effects that: the casting process yield of the static pressure molding line is improved, and the economic benefit is better. Generally, the process yield can be increased by 2-4%.
Drawings
FIG. 1 is a schematic view of a pouring cup used in the present invention;
figure 2 is a cross-sectional view of the invention.
Reference numerals:
1-cup mouth, 2-step mouth, 3-pouring channel and 4-outlet.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1-2:
a method for improving the technological yield of a static pressure molding line uses an improved pouring cup in the static pressure molding line technology, the improved pouring cup is provided with a cup opening 1, the inner ring of the cup opening 1 is provided with a step opening 2, a hemispherical pouring gate 3 is arranged in the step opening 2, and the bottom of the pouring gate is provided with an outlet 4; the height difference between the cup opening 1 and the step opening 2 is 10-50mm, and the inner diameter difference between the cup opening 1 and the step opening 2 is 5-10 mm. The outlet 4 is conical, and the diameter ratio of the diameter of the outlet 4 to the diameter of the cup mouth 1 is 1: 3-5. In this embodiment, the height difference between the cup rim 1 and the step 2 is 30mm, and the inner diameter difference between the cup rim 1 and the step 2 is 8 mm; the cup mouth and the step mouth are round.
The dotted line part is the contour line of the original pouring cup, and the solid line is the contour line of the pouring cup of the invention. Wherein, the size A is the maximum diameter of the liquid surface after the original pouring cup is poured, the maximum diameter of the liquid surface after the pouring cup is poured is B, and generally, B is less than or equal to A. Dimension C is the height difference between the inner and outer races of the pouring cup of the present invention, and is generally 10-50 mm. The dimension D is the size of the sphere of the original pouring cup for containing the metal liquid, the dimension E is the size of the sphere of the pouring cup for containing the metal liquid, and the dimension E is smaller than D. The height H of the size of the pouring cup is constant.
The pouring cup is designed as shown in fig. 1, reducing the volume of the pouring cup. The maximum diameter of the liquid surface of the pouring cup can be adjusted according to the pouring condition and the product quality, but the maximum diameter cannot exceed the diameter of the original pouring cup, which is related to the pouring mode and the pouring operation level. The height of the pouring cup is not changed, so that the pressure head after pouring is not changed, and the internal quality of the casting cannot be influenced. The realization mode is that according to the principle of figure 1, a corresponding modeling line milling cutter is designed to mill the sprue cup on the sand mold.
The preferred embodiment of the present patent has been described in detail, but the present patent is not limited to the above embodiment, and the shape of the pouring cup is not limited to a circular shape, but may be any other shape according to the process requirements. Variations can be made within the knowledge of those skilled in the art without departing from the spirit of the patent.
Claims (5)
1. A method for improving the technological yield of a static pressure molding line is characterized by comprising the following steps: an improved pouring cup is used in a static pressure molding line process, the improved pouring cup is provided with a cup opening (1), a step opening (2) is arranged on the inner ring of the cup opening (1), a hemispherical pouring gate (3) is arranged in the step opening (2), and an outlet (4) is arranged at the bottom of the pouring gate (3); the height difference between the cup mouth (1) and the step mouth (2) is 10-50mm, and the inner diameter difference between the cup mouth and the step mouth (2) is 5-10 mm.
2. The method for improving the technological yield of the static pressure molding line according to claim 1, wherein the method comprises the following steps: the height difference between the cup mouth (1) and the step mouth (2) is preferably 30mm, and the inner diameter difference between the cup mouth and the step mouth (2) is preferably 8 mm.
3. The method for improving the technological yield of the static pressure molding line according to claim 1, wherein the method comprises the following steps: the outlet (4) is conical, and the diameter ratio of the diameter of the outlet (4) to the diameter of the cup opening (1) is 1: 3-5.
4. The method for improving the technological yield of the static pressure molding line according to claim 1, wherein the method comprises the following steps: the cup mouth (1) and the step mouth (2) can be set to be in any shape required by the process.
5. The method for improving the technological yield of the static pressure molding line according to claim 4, wherein the method comprises the following steps: the cup mouth (1) and the step mouth (2) are round or square.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110556428.4A CN113275512A (en) | 2021-05-21 | 2021-05-21 | Method for improving technological yield of static pressure molding line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110556428.4A CN113275512A (en) | 2021-05-21 | 2021-05-21 | Method for improving technological yield of static pressure molding line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113275512A true CN113275512A (en) | 2021-08-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110556428.4A Pending CN113275512A (en) | 2021-05-21 | 2021-05-21 | Method for improving technological yield of static pressure molding line |
Country Status (1)
| Country | Link |
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| CN (1) | CN113275512A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001353556A (en) * | 2000-06-14 | 2001-12-25 | Yasuda Kogyo Kk | Mold for molten metal pouring machine and casting method using the machine |
| DE10064300C1 (en) * | 2000-12-22 | 2002-04-25 | Bosch Gmbh Robert | Casting mold used for die casting metal components having a cylindrical geometry comprises an in-gate, a molding region, and a casting run with two channels formed as a mold plug receiving chamber |
| EP1625903A2 (en) * | 2004-06-17 | 2006-02-15 | Casa Maristas Azterlan | Riser funnel |
| CN201304484Y (en) * | 2008-11-13 | 2009-09-09 | 陕西法士特汽车传动集团有限责任公司 | Runner cup for lost foam casting |
| CN104128565A (en) * | 2014-07-30 | 2014-11-05 | 洛阳鹏起实业有限公司 | Fission split type universal sprue cup for titanium alloy casting |
| CN203992256U (en) * | 2014-08-06 | 2014-12-10 | 辽宁伊菲科技股份有限公司 | Double medium filtration sheet cup |
| CN104353788A (en) * | 2014-10-08 | 2015-02-18 | 辽宁伊菲科技股份有限公司 | Integrative sprue cup for aluminum alloy casting and manufacturing method |
| CN204842866U (en) * | 2015-07-22 | 2015-12-09 | 嘉兴市宏丰机械有限公司 | Novel sand mould pouring basin structure |
| CN205362803U (en) * | 2016-01-28 | 2016-07-06 | 山东康迈信机械有限公司 | Mill pouring basin device |
| CN106694807A (en) * | 2016-12-14 | 2017-05-24 | 青岛美璞精工机械有限公司 | Adapting form precision casting filter sprue cup |
-
2021
- 2021-05-21 CN CN202110556428.4A patent/CN113275512A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001353556A (en) * | 2000-06-14 | 2001-12-25 | Yasuda Kogyo Kk | Mold for molten metal pouring machine and casting method using the machine |
| DE10064300C1 (en) * | 2000-12-22 | 2002-04-25 | Bosch Gmbh Robert | Casting mold used for die casting metal components having a cylindrical geometry comprises an in-gate, a molding region, and a casting run with two channels formed as a mold plug receiving chamber |
| EP1625903A2 (en) * | 2004-06-17 | 2006-02-15 | Casa Maristas Azterlan | Riser funnel |
| CN201304484Y (en) * | 2008-11-13 | 2009-09-09 | 陕西法士特汽车传动集团有限责任公司 | Runner cup for lost foam casting |
| CN104128565A (en) * | 2014-07-30 | 2014-11-05 | 洛阳鹏起实业有限公司 | Fission split type universal sprue cup for titanium alloy casting |
| CN203992256U (en) * | 2014-08-06 | 2014-12-10 | 辽宁伊菲科技股份有限公司 | Double medium filtration sheet cup |
| CN104353788A (en) * | 2014-10-08 | 2015-02-18 | 辽宁伊菲科技股份有限公司 | Integrative sprue cup for aluminum alloy casting and manufacturing method |
| CN204842866U (en) * | 2015-07-22 | 2015-12-09 | 嘉兴市宏丰机械有限公司 | Novel sand mould pouring basin structure |
| CN205362803U (en) * | 2016-01-28 | 2016-07-06 | 山东康迈信机械有限公司 | Mill pouring basin device |
| CN106694807A (en) * | 2016-12-14 | 2017-05-24 | 青岛美璞精工机械有限公司 | Adapting form precision casting filter sprue cup |
Non-Patent Citations (1)
| Title |
|---|
| 章舟等: "消失模铸造的浇注系统", 《现代铸铁》 * |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210820 |
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| RJ01 | Rejection of invention patent application after publication |