CN111545714A - Casting process of preset inner hole casting - Google Patents
Casting process of preset inner hole casting Download PDFInfo
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- CN111545714A CN111545714A CN202010411902.XA CN202010411902A CN111545714A CN 111545714 A CN111545714 A CN 111545714A CN 202010411902 A CN202010411902 A CN 202010411902A CN 111545714 A CN111545714 A CN 111545714A
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- gauge
- casting
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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
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- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The invention provides a casting process of a preset inner hole casting, which comprises the following steps: the method comprises the steps of preparing an embedded pipe according to the shape of a pattern inner hole in a pre-drawn design drawing, wherein the embedded pipe is provided with a through hole with the shape and the size consistent with those of the pattern inner hole in the design drawing, preparing a go gauge and a no-go gauge according to the technical requirement of the size of the aperture of the pattern inner hole in the design drawing, preparing a casting mold according to the shape of the pattern in the design drawing, inserting the embedded pipe into the corresponding position in the casting mold according to the design drawing to obtain a formwork, respectively using the go gauge and the no-go gauge to insert the aperture of the through hole in the embedded pipe in the casting mold for inspection, when the go gauge can extend into the through hole and the no-go gauge cannot extend into the through hole, classifying the corresponding formwork as a qualified formwork, pouring and smelting alloy materials in a liquid state into the qualified formwork, and obtaining a preset. By adopting the technical scheme of the invention, the detection efficiency is improved, and the size precision of the inner hole on the final formed casting is ensured.
Description
Technical Field
The invention relates to the technical field of casting processes, in particular to a casting process for a preset inner hole casting.
Background
With the continuous development of machining and manufacturing technologies, people have higher and higher requirements on mechanical part products, and the shapes and structures of the products manufactured by machining are increasingly diversified, the mechanical part products with diversified shapes are usually manufactured by adopting a casting forming process, however, some mechanical part products are preset with holes, in order to form the hole characteristics, an embedded pipe with the same shape and size as an inner hole is embedded in a casting mold, so that an alloy material is poured on the peripheral surface of the embedded pipe, and corresponding hole characteristics are formed, however, after the embedded pipe is inserted into a corresponding position in the casting mold according to a design drawing, the embedded pipe is easily deformed by the pressure of the casting mold, and the dimensional accuracy of the inner hole on a finally formed casting is affected, in the prior art, the hole diameter of a through hole in the embedded pipe is generally measured by using a measuring tool such as a vernier caliper and the like, however, when the castings are manufactured in large quantities, the measuring method is inefficient and difficult to adapt to the requirement of large-scale production of the castings.
Disclosure of Invention
In order to solve the technical problem, the invention provides a casting process of a preset inner hole casting.
The invention is realized by the following technical scheme.
The invention provides a casting process of a preset inner hole casting, which comprises the following steps:
the method comprises the steps of preparing an embedded pipe according to the shape of a pattern inner hole in a pre-drawn design drawing, wherein the embedded pipe is provided with a middle through hole with the shape and the size consistent with those of the pattern inner hole in the design drawing, preparing a go gauge and a no-go gauge according to the technical requirements of the size of the pattern inner hole in the design drawing, preparing a casting mold according to the shape of the pattern in the design drawing, inserting the embedded pipe into a corresponding position in the casting mold according to the design drawing to obtain a formwork, respectively using the go gauge and the no-go gauge to insert the hole diameter of the through hole in the embedded pipe in the casting mold for inspection, when the go gauge can extend into the middle through hole and the no-go gauge cannot extend into the middle through hole, classifying the corresponding formwork as a qualified formwork, pouring and smelting an alloy material in a liquid state into the formwork, and obtaining a preset casting inner hole after the alloy material.
And the aperture of the inner hole of the pattern in the design drawing is dmm, the outer diameter of the go gauge is d-0.1mm, and the outer diameter of the no-go gauge is d +0.1 mm.
The aperture of the inner hole of the pattern in the design drawing is phi 7 mm.
The deviation of the hole diameter of the inner hole of the pattern in the design drawing is +0.09mm, and the deviation of the hole diameter of the inner hole of the pattern in the design drawing is 0 mm.
The length of the go gauge or the no-go gauge is more than 20 mm.
The inner hole of the pattern in the design drawing is a blind hole or a through hole.
The alloy material is aluminum alloy.
The go gauge and the no-go gauge are connected into a whole.
The inlaid tube is made of stainless steel.
The go gauge or the no-go gauge is made of carbon steel with the mark number of 45 #.
The invention has the beneficial effects that: by adopting the technical scheme of the invention, in the casting process, the through gauge and the no-go gauge are used for checking the aperture of the through hole in the embedded pipe inserted into the casting die, so that the dimensional precision of the inner hole on the finally formed casting is ensured, the qualification rate of the finished product is improved, the detection method using the through gauge and the no-go gauge is quick and accurate, the detection efficiency is improved, and the method is particularly suitable for popularization and application in the large-scale production process of the casting.
Drawings
FIG. 1 is a schematic diagram of the construction of a go gauge and a no-go gauge of the present invention.
In the figure: 1-go gauge and 2-no-go gauge.
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.
As shown in FIG. 1, the invention provides a casting process of a preset inner bore casting, which comprises the following steps:
the method comprises the steps of preparing an embedded pipe according to the shape of a pattern inner hole in a pre-drawn design drawing, wherein the embedded pipe is provided with a through hole with the shape and the size consistent with those of the pattern inner hole in the design drawing, preparing a go gauge 1 and a no-go gauge 2 according to the technical requirement of the size of the pattern inner hole in the design drawing, preparing a casting mold according to the shape of the pattern in the design drawing, inserting the embedded pipe into the corresponding position in the casting mold according to the design drawing to obtain a formwork, respectively using the go gauge 1 and the no-go gauge 2 to insert the through hole in the embedded pipe in the casting mold for inspection, when the go gauge 1 can extend into the through hole and the no-go gauge 2 cannot extend into the through hole, classifying the corresponding formwork as a qualified formwork, pouring and smelting alloy materials in a liquid state into the qualified formwork, and obtaining a preset inner hole casting after the alloy.
Further, the bore diameter of the inner hole of the pattern in the design drawing is dmm, the outer diameter of the go gauge 1 is d-0.1mm, and the outer diameter of the no-go gauge 2 is d +0.1 mm. The bore diameter of the inner bore of the pattern in the design drawing is phi 7 mm. The deviation of the hole diameter of the inner hole of the pattern in the design drawing is +0.09mm, and the deviation is 0 mm. The length of the go gauge 1 or the no-go gauge 2 is more than 20 mm.
In addition, the inner hole of the pattern in the design drawing is a blind hole or a through hole. The alloy material is aluminum alloy. The go gauge 1 and the no-go gauge 2 are connected into a whole. The material of the inlaid tube is stainless steel. In the following steps: the go gauge 1 or the no-go gauge 2 is made of carbon steel with the mark number of 45 #.
By adopting the technical scheme of the invention, in the casting process, the through gauge 1 and the no-go gauge 2 are used for checking the aperture of the through hole in the embedded pipe inserted into the casting mould, so that the dimensional precision of the inner hole on the final formed casting is ensured, the qualification rate of the finished product is improved, the detection method using the through gauge 1 and the no-go gauge 2 is quick and accurate, the detection efficiency is improved, and the method is particularly suitable for popularization and application in the large-scale production process of the casting.
Claims (10)
1. A casting process of a preset inner hole casting is characterized in that: the method comprises the following steps:
preparing an embedded pipe according to the shape of a pattern inner hole in a pre-drawn design drawing, wherein the embedded pipe is provided with a middle through hole with the shape and the size consistent with those of the pattern inner hole in the design drawing, preparing a go gauge (1) and a no-go gauge (2) according to the technical requirement of the aperture size of the pattern inner hole in the design drawing, then preparing a casting mold according to the shape of the pattern in the design drawing, inserting the embedded pipe into the corresponding position in the casting mold according to the design drawing to obtain a mold shell, respectively using a go gauge (1) and a no-go gauge (2) to insert the through hole aperture in the embedded pipe in the casting mold for inspection, when the go gauge (1) can extend into the middle through hole and the no-go gauge (2) cannot extend into the middle through hole, and (3) selecting the corresponding mould shell as a qualified mould shell, pouring and smelting the alloy material in a liquid state into the qualified mould shell, and obtaining a preset inner hole casting after the alloy material is solidified.
2. The casting process of the preset inner bore casting according to claim 1, wherein the casting process comprises the following steps: the aperture of a pattern inner hole in the design drawing is dmm, the outer diameter of the go gauge (1) is d-0.1mm, and the outer diameter of the no-go gauge (2) is d +0.1 mm.
3. The casting process of the pre-designed bore casting according to claim 2, wherein: the aperture of the inner hole of the pattern in the design drawing is phi 7 mm.
4. The casting process of the pre-designed bore casting according to claim 2, wherein: the deviation of the hole diameter of the inner hole of the pattern in the design drawing is +0.09mm, and the deviation of the hole diameter of the inner hole of the pattern in the design drawing is 0 mm.
5. The casting process of the preset inner bore casting according to claim 1, wherein the casting process comprises the following steps: the length of the go gauge (1) or the no-go gauge (2) is more than 20 mm.
6. The casting process of the preset inner bore casting according to claim 1, wherein the casting process comprises the following steps: the inner hole of the pattern in the design drawing is a blind hole or a through hole.
7. The casting process of the preset inner bore casting according to claim 1, wherein the casting process comprises the following steps: the alloy material is aluminum alloy.
8. The casting process of the preset inner bore casting according to claim 1, wherein the casting process comprises the following steps: the go gauge (1) and the no-go gauge (2) are connected into a whole.
9. The casting process of the preset inner bore casting according to claim 1, wherein the casting process comprises the following steps: the inlaid tube is made of stainless steel.
10. The casting process of the preset inner bore casting according to claim 1, wherein the casting process comprises the following steps: the go gauge (1) or the no-go gauge (2) is made of carbon steel with the mark number of 45 #.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010411902.XA CN111545714A (en) | 2020-05-15 | 2020-05-15 | Casting process of preset inner hole casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010411902.XA CN111545714A (en) | 2020-05-15 | 2020-05-15 | Casting process of preset inner hole casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111545714A true CN111545714A (en) | 2020-08-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010411902.XA Pending CN111545714A (en) | 2020-05-15 | 2020-05-15 | Casting process of preset inner hole casting |
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| Country | Link |
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| CN (1) | CN111545714A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114234762A (en) * | 2021-12-22 | 2022-03-25 | 东风(十堰)有色铸件有限公司 | Method for rapidly detecting special-shaped complex round pipe fitting |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2198992Y (en) * | 1994-09-29 | 1995-05-31 | 林春海 | Water-cooled core for casting |
| CN1404941A (en) * | 2002-11-04 | 2003-03-26 | 沪东重机股份有限公司 | Method for casting cast-steel piece with deep-long through hole |
| CN2840287Y (en) * | 2005-09-29 | 2006-11-22 | 武汉市友联磁业有限公司 | High-performance magnet steel earthenware or quartz ampoule sand mold |
| CN101020225A (en) * | 2006-12-20 | 2007-08-22 | 天水星火机床有限责任公司 | Tube imbedding casting process to form bent cast hole |
| CN103736974A (en) * | 2014-01-27 | 2014-04-23 | 福建兴航机械铸造有限公司 | One-step molding method for long and thin hole in casting |
| CN104923727A (en) * | 2015-05-15 | 2015-09-23 | 中国航空工业集团公司北京航空材料研究院 | Sand mould casting method of titanium or titanium alloy cast with special-shape inner hole |
| CN207547546U (en) * | 2017-10-12 | 2018-06-29 | 潍柴动力股份有限公司 | A kind of casting oil hole sand core structure |
-
2020
- 2020-05-15 CN CN202010411902.XA patent/CN111545714A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2198992Y (en) * | 1994-09-29 | 1995-05-31 | 林春海 | Water-cooled core for casting |
| CN1404941A (en) * | 2002-11-04 | 2003-03-26 | 沪东重机股份有限公司 | Method for casting cast-steel piece with deep-long through hole |
| CN2840287Y (en) * | 2005-09-29 | 2006-11-22 | 武汉市友联磁业有限公司 | High-performance magnet steel earthenware or quartz ampoule sand mold |
| CN101020225A (en) * | 2006-12-20 | 2007-08-22 | 天水星火机床有限责任公司 | Tube imbedding casting process to form bent cast hole |
| CN103736974A (en) * | 2014-01-27 | 2014-04-23 | 福建兴航机械铸造有限公司 | One-step molding method for long and thin hole in casting |
| CN104923727A (en) * | 2015-05-15 | 2015-09-23 | 中国航空工业集团公司北京航空材料研究院 | Sand mould casting method of titanium or titanium alloy cast with special-shape inner hole |
| CN207547546U (en) * | 2017-10-12 | 2018-06-29 | 潍柴动力股份有限公司 | A kind of casting oil hole sand core structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114234762A (en) * | 2021-12-22 | 2022-03-25 | 东风(十堰)有色铸件有限公司 | Method for rapidly detecting special-shaped complex round pipe fitting |
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Application publication date: 20200818 |
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