CN111318644A - Inoculation block production process for coated sand mold - Google Patents
Inoculation block production process for coated sand mold Download PDFInfo
- Publication number
- CN111318644A CN111318644A CN202010180431.6A CN202010180431A CN111318644A CN 111318644 A CN111318644 A CN 111318644A CN 202010180431 A CN202010180431 A CN 202010180431A CN 111318644 A CN111318644 A CN 111318644A
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- sand
- shell
- casting
- pouring
- inoculation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/02—Sand moulds or like moulds for shaped castings
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C1/00—Refining of pig-iron; Cast iron
- C21C1/08—Manufacture of cast-iron
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
The invention discloses a process for producing inoculation blocks by using a coated sand mold, and relates to the technical field of production processes. The invention comprises the following steps: preparing a shell from SS 01: sand enters a mould through a core shooter, heating, curing and molding are carried out to complete shell making, and an SS02 precoated sand shell forms a sand shell group: a plurality of tectorial membrane sand casing piles up each other to make the sprue of tectorial membrane sand casing align, and plug up the straight gate of bottommost layer with useless sand, the installation of SS03 pouring basin: in the sand shell group placement area, the precoated sand pouring cup is installed at the sprue upper opening of the uppermost precoated sand shell by using refractory soil, alloy water enters the sprue to each shell through the pouring cup to form a casting, and the casting can be boxed after solidification. The invention utilizes the precoated sand to prepare the sand shell mold to cast the inoculation block, goes forward in scientific and technological research and development, realizes the production mechanization, low labor intensity, small environmental pollution, high weight precision and good surface smoothness of the inoculation block casting, and is more beneficial to the enterprise development.
Description
Technical Field
The invention belongs to the technical field of production processes, and particularly relates to a process for producing inoculation blocks by a film-coated sand mold.
Background
The inoculation treatment technology has a very important role in cast iron production, becomes an important link for producing high-quality iron castings, and is also an effective measure for producing thin-wall, complex and high-strength cast iron and improving the processing performance of the castings.
In the traditional inoculation block production mode, a large number of steel moulds are customized according to the requirements of customers, the production period of the steel moulds is long, and the cost of materials, transportation cost and the like is high. The dies must be stacked one on top of the other during use. In the casting process, the manual casting speed is slow. After the casting is finished, a large amount of labor is needed to take the steel die out of the product, the steel die is greatly abraded in use, and the service life is short. The long pouring time causes long heat preservation waiting time of the electric furnace, which wastes electric energy and causes serious element burning loss of the alloy liquid at high temperature for a long time, thereby causing uncontrollable components of the inoculation block and incapability of guaranteeing the consistency of element content. The finishing process at the later stage of the inoculation block also needs a great amount of labor, so that the weight of each inoculation block product is uneven, and the weight difference of each product often exceeds the requirement of a client. Solves the problems existing in the current inoculation block, and is the target of scientific research workers. In view of the above, the invention designs a set of method for producing the inoculation block by using the precoated sand, breaks through the traditional inoculation block smelting concept and process, and improves the inoculation block technology by a new step.
Disclosure of Invention
The invention aims to provide a process for producing a inoculation block by using precoated sand, which can be used for preparing a mould by re-proportioning used precoated sand and new precoated sand by using the inoculation block produced by using the precoated sand, and solves the problem of resource waste.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to a process for producing inoculation blocks by using a film-coated sand mold, which comprises the following steps:
preparing a shell from SS 01: sand enters a mould through a core shooter, and is heated, cured and molded to complete shell making;
the SS02 precoated sand shell forms a sand shell group: a plurality of precoated sand shells are mutually overlapped so as to align straight pouring channels of the precoated sand shells, and waste sand is used for blocking a straight pouring channel opening at the bottommost layer;
SS03 pouring cup installation: in the sand shell group placement area, mounting a precoated sand sprue cup on the sprue upper port of the topmost precoated sand shell by using refractory soil, allowing alloy water to enter the sprue to each shell through the sprue cup to form a casting, and boxing the casting after solidification;
SS04 boxing: hoisting the standard special box to a box loading area, padding waste sand at the bottom of the box, assembling a sand shell into a sand box, and waiting for casting;
smelting of SS 05: according to the plan, the material of the poured product and the rated alloy water amount, the furnace worker weighs the ingredients, melts the alloy water with qualified material, qualified weight and qualified temperature;
SS06 casting: repeatedly slagging off the molten alloy to obtain clean molten alloy, pouring the molten alloy into a pouring ladle, starting pouring, and determining pouring speeds of different sizes according to the requirements of planned products until a sand shell group is poured fully;
separation of SS07 inoculation blocks: and after the inoculation block casting is cooled, manually cleaning a casting head on the surface, and then putting the inoculation block casting into a roller for sand cleaning to obtain a clean inoculation block product.
Further, the heating curing time in SS01 is 3.5-6 minutes.
Further, the thickness of the waste sand padded at the bottom of the box in the SS04 is 4-6 cm.
Further, the SS07 middle pouring channel is arranged in a material warehouse to be used as a return smelting material.
The invention has the following beneficial effects:
1. the invention utilizes the precoated sand to prepare the sand shell mold to cast the inoculation block, goes forward in scientific and technological research and development, realizes the production mechanization, low labor intensity, small environmental pollution, high weight precision and good surface smoothness of the inoculation block casting, and is more beneficial to the enterprise development.
2. The used precoated sand can be mixed with new precoated sand to prepare a mold, so that the energy is saved and the environment is protected.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all 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.
Example one
The invention relates to a process for producing inoculation blocks by using a film-coated sand mold, which comprises the following steps:
preparing a shell from SS 01: sand enters a mould through a core shooter, and is heated, cured and molded to complete shell making;
the SS02 precoated sand shell forms a sand shell group: a plurality of precoated sand shells are mutually overlapped so as to align straight pouring channels of the precoated sand shells, and waste sand is used for blocking a straight pouring channel opening at the bottommost layer;
SS03 pouring cup installation: in the sand shell group placement area, mounting a precoated sand sprue cup on the sprue upper port of the topmost precoated sand shell by using refractory soil, allowing alloy water to enter the sprue to each shell through the sprue cup to form a casting, and boxing the casting after solidification;
SS04 boxing: hoisting the standard special box to a box loading area, padding waste sand at the bottom of the box, assembling a sand shell into a sand box, and waiting for casting;
smelting of SS 05: according to the plan, the material of the poured product and the rated alloy water amount, the furnace worker weighs the ingredients, melts the alloy water with qualified material, qualified weight and qualified temperature;
SS06 casting: repeatedly slagging off the molten alloy to obtain clean molten alloy, pouring the molten alloy into a pouring ladle, starting pouring, and determining pouring speeds of different sizes according to the requirements of planned products until a sand shell group is poured fully;
separation of SS07 inoculation blocks: and after the inoculation block casting is cooled, manually cleaning a casting head on the surface, and then putting the inoculation block casting into a roller for sand cleaning to obtain a clean inoculation block product.
Wherein the heating curing time in SS01 is 4 minutes.
Wherein, the thickness of the waste sand padded at the bottom of the box in the SS04 is 4.5 cm.
Wherein the SS07 middle pouring gate is put into a material warehouse to be used as a return smelting material.
Example two
The invention relates to a process for producing inoculation blocks by using a film-coated sand mold, which comprises the following steps:
preparing a shell from SS 01: sand enters a mould through a core shooter, and is heated, cured and molded to complete shell making;
the SS02 precoated sand shell forms a sand shell group: a plurality of precoated sand shells are mutually overlapped so as to align straight pouring channels of the precoated sand shells, and waste sand is used for blocking a straight pouring channel opening at the bottommost layer;
SS03 pouring cup installation: in the sand shell group placement area, mounting a precoated sand sprue cup on the sprue upper port of the topmost precoated sand shell by using refractory soil, allowing alloy water to enter the sprue to each shell through the sprue cup to form a casting, and boxing the casting after solidification;
SS04 boxing: hoisting the standard special box to a box loading area, padding waste sand at the bottom of the box, assembling a sand shell into a sand box, and waiting for casting;
smelting of SS 05: according to the plan, the material of the poured product and the rated alloy water amount, the furnace worker weighs the ingredients, melts the alloy water with qualified material, qualified weight and qualified temperature;
SS06 casting: repeatedly slagging off the molten alloy to obtain clean molten alloy, pouring the molten alloy into a pouring ladle, starting pouring, and determining pouring speeds of different sizes according to the requirements of planned products until a sand shell group is poured fully;
separation of SS07 inoculation blocks: and after the inoculation block casting is cooled, manually cleaning a casting head on the surface, and then putting the inoculation block casting into a roller for sand cleaning to obtain a clean inoculation block product.
Wherein the heating curing time in SS01 is 4 minutes.
Wherein, the thickness of the waste sand padded at the bottom of the box in the SS04 is 5 cm.
Wherein the SS07 middle pouring gate is put into a material warehouse to be used as a return smelting material.
EXAMPLE III
The invention relates to a process for producing inoculation blocks by using a film-coated sand mold, which comprises the following steps:
preparing a shell from SS 01: sand enters a mould through a core shooter, and is heated, cured and molded to complete shell making;
the SS02 precoated sand shell forms a sand shell group: a plurality of precoated sand shells are mutually overlapped so as to align straight pouring channels of the precoated sand shells, and waste sand is used for blocking a straight pouring channel opening at the bottommost layer;
SS03 pouring cup installation: in the sand shell group placement area, mounting a precoated sand sprue cup on the sprue upper port of the topmost precoated sand shell by using refractory soil, allowing alloy water to enter the sprue to each shell through the sprue cup to form a casting, and boxing the casting after solidification;
SS04 boxing: hoisting the standard special box to a box loading area, padding waste sand at the bottom of the box, assembling a sand shell into a sand box, and waiting for casting;
smelting of SS 05: according to the plan, the material of the poured product and the rated alloy water amount, the furnace worker weighs the ingredients, melts the alloy water with qualified material, qualified weight and qualified temperature;
SS06 casting: repeatedly slagging off the molten alloy to obtain clean molten alloy, pouring the molten alloy into a pouring ladle, starting pouring, and determining pouring speeds of different sizes according to the requirements of planned products until a sand shell group is poured fully;
separation of SS07 inoculation blocks: and after the inoculation block casting is cooled, manually cleaning a casting head on the surface, and then putting the inoculation block casting into a roller for sand cleaning to obtain a clean inoculation block product.
Wherein the heating curing time in SS01 is 5 minutes.
Wherein, the thickness of the waste sand padded at the bottom of the box in the SS04 is 4.5 cm.
Wherein the SS07 middle pouring gate is put into a material warehouse to be used as a return smelting material.
Example four
The invention relates to a process for producing inoculation blocks by using a film-coated sand mold, which comprises the following steps:
preparing a shell from SS 01: sand enters a mould through a core shooter, and is heated, cured and molded to complete shell making;
the SS02 precoated sand shell forms a sand shell group: a plurality of precoated sand shells are mutually overlapped so as to align straight pouring channels of the precoated sand shells, and waste sand is used for blocking a straight pouring channel opening at the bottommost layer;
SS03 pouring cup installation: in the sand shell group placement area, mounting a precoated sand sprue cup on the sprue upper port of the topmost precoated sand shell by using refractory soil, allowing alloy water to enter the sprue to each shell through the sprue cup to form a casting, and boxing the casting after solidification;
SS04 boxing: hoisting the standard special box to a box loading area, padding waste sand at the bottom of the box, assembling a sand shell into a sand box, and waiting for casting;
smelting of SS 05: according to the plan, the material of the poured product and the rated alloy water amount, the furnace worker weighs the ingredients, melts the alloy water with qualified material, qualified weight and qualified temperature;
SS06 casting: repeatedly slagging off the molten alloy to obtain clean molten alloy, pouring the molten alloy into a pouring ladle, starting pouring, and determining pouring speeds of different sizes according to the requirements of planned products until a sand shell group is poured fully;
separation of SS07 inoculation blocks: and after the inoculation block casting is cooled, manually cleaning a casting head on the surface, and then putting the inoculation block casting into a roller for sand cleaning to obtain a clean inoculation block product.
Wherein the heating curing time in SS01 is 5 minutes.
Wherein, the thickness of the waste sand padded at the bottom of the box in the SS04 is 5 cm.
Wherein the SS07 middle pouring gate is put into a material warehouse to be used as a return smelting material.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (4)
1. The inoculation block production process for the coated sand mold is characterized by comprising the following steps of: the method comprises the following steps:
preparing a shell from SS 01: sand enters a mould through a core shooter, and is heated, cured and molded to complete shell making;
the SS02 precoated sand shell forms a sand shell group: a plurality of precoated sand shells are mutually overlapped so as to align straight pouring channels of the precoated sand shells, and waste sand is used for blocking a straight pouring channel opening at the bottommost layer;
SS03 pouring cup installation: in the sand shell group placement area, mounting a precoated sand sprue cup on the sprue upper port of the topmost precoated sand shell by using refractory soil, allowing alloy water to enter the sprue to each shell through the sprue cup to form a casting, and boxing the casting after solidification;
SS04 boxing: hoisting the standard special box to a box loading area, padding waste sand at the bottom of the box, assembling a sand shell into a sand box, and waiting for casting;
smelting of SS 05: according to the plan, the material of the poured product and the rated alloy water amount, the furnace worker weighs the ingredients, melts the alloy water with qualified material, qualified weight and qualified temperature;
SS06 casting: repeatedly slagging off the molten alloy to obtain clean molten alloy, pouring the molten alloy into a pouring ladle, starting pouring, and determining pouring speeds of different sizes according to the requirements of planned products until a sand shell group is poured fully;
separation of SS07 inoculation blocks: and after the inoculation block casting is cooled, manually cleaning a casting head on the surface, and then putting the inoculation block casting into a roller for sand cleaning to obtain a clean inoculation block product.
2. The process for producing the inoculant block by using the film-coating sand mold according to claim 1, wherein the heating time in the SS01 is 3.5-6 minutes.
3. The process for producing the inoculation block by the film-coating sand mold according to claim 1, wherein the thickness of the waste sand filled in the bottom of the tank in the SS04 is 4-6 cm.
4. The inoculation block process for production of the film-coated sand mold according to claim 1, wherein the SS07 tundish is fed into a material warehouse to be used as a return smelting material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010180431.6A CN111318644A (en) | 2020-03-16 | 2020-03-16 | Inoculation block production process for coated sand mold |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010180431.6A CN111318644A (en) | 2020-03-16 | 2020-03-16 | Inoculation block production process for coated sand mold |
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| CN111318644A true CN111318644A (en) | 2020-06-23 |
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| CN202010180431.6A Pending CN111318644A (en) | 2020-03-16 | 2020-03-16 | Inoculation block production process for coated sand mold |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1410193A (en) * | 2002-11-07 | 2003-04-16 | 湖北汽车工业学院 | Manufacturing method of cast iron mould cavity inoculation block |
| CN1410194A (en) * | 2002-11-07 | 2003-04-16 | 湖北汽车工业学院 | Spheroidal graphite cast iron mould cavity inoculation block and its production technology |
| CN104493087A (en) * | 2014-12-24 | 2015-04-08 | 西安合力汽车配件有限公司 | Method for producing casting by pre-coated sand shell mold |
| CN105583362A (en) * | 2016-02-19 | 2016-05-18 | 无锡市凯杰铸造有限公司 | Casting method for producing steel casting through precoated sand |
| CN207681451U (en) * | 2017-12-27 | 2018-08-03 | 南京浦江合金材料股份有限公司 | A kind of inoculant block cast molding mold being oriented to centering |
| CN110732658A (en) * | 2019-10-22 | 2020-01-31 | 东风精密铸造安徽有限公司 | in-mold casting inoculation block and inoculation method of nodular cast iron |
-
2020
- 2020-03-16 CN CN202010180431.6A patent/CN111318644A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1410193A (en) * | 2002-11-07 | 2003-04-16 | 湖北汽车工业学院 | Manufacturing method of cast iron mould cavity inoculation block |
| CN1410194A (en) * | 2002-11-07 | 2003-04-16 | 湖北汽车工业学院 | Spheroidal graphite cast iron mould cavity inoculation block and its production technology |
| CN104493087A (en) * | 2014-12-24 | 2015-04-08 | 西安合力汽车配件有限公司 | Method for producing casting by pre-coated sand shell mold |
| CN105583362A (en) * | 2016-02-19 | 2016-05-18 | 无锡市凯杰铸造有限公司 | Casting method for producing steel casting through precoated sand |
| CN207681451U (en) * | 2017-12-27 | 2018-08-03 | 南京浦江合金材料股份有限公司 | A kind of inoculant block cast molding mold being oriented to centering |
| CN110732658A (en) * | 2019-10-22 | 2020-01-31 | 东风精密铸造安徽有限公司 | in-mold casting inoculation block and inoculation method of nodular cast iron |
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Application publication date: 20200623 |
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