CN103302252A - Casting technology and heat isolation device for casting - Google Patents
Casting technology and heat isolation device for casting Download PDFInfo
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- CN103302252A CN103302252A CN2013102283960A CN201310228396A CN103302252A CN 103302252 A CN103302252 A CN 103302252A CN 2013102283960 A CN2013102283960 A CN 2013102283960A CN 201310228396 A CN201310228396 A CN 201310228396A CN 103302252 A CN103302252 A CN 103302252A
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Abstract
The invention belongs to the field of casting, and in particular relates to a casting technology and a heat isolation device for casting. The casting technology comprises the following technical steps of: extruding a shaping chamber of a shaping machine after the shaping chamber is full of sand by ejection to form a half sand form, executing the second circulation to form the other half of sand form, forming a complete sand form by the two half sand forms, and conveying the sand form into a pouring machine for automatic pouring, thus obtaining a product. The heat isolation device for the casting comprises a plate, wherein the plate consists of a positive pressure plate and a back pressure plate; a casting cavity is formed in the middle of the plate; an inner pouring gate is formed in one side of the casting cavity and is connected with a pouring channel; the pouring channel is connected with a pouring gate cup; a concave-convex parting device is arranged at the lower part of the plate; a heat isolation device body is arranged at the lower part of the concave-convex parting device; the low end of the plate is connected with a sand scraping strip. According to the invention, the utilization rate of the device is increased, damage of large-size castings to equipment is avoided, the service life of a belt is prolonged, the productivity of a shaping line is improved, and the production cost is reduced. A novel casting device is qualified in structure and easy to implement.
Description
Technical field
The invention belongs to casting field, relate to a kind of casting technique and casting heat-proof device thereof.
Background technology
The transmission of sand mold and foundry goods is very important link during the casting streamline is produced behind the casting complete, and major function is to transmit by belt.The sand mold size that vertical moulding machine is produced is certain, and the foundry goods full-size of production is limited because of sand mold, if will scald belt greatly, causes device damage again.
The routine casting using stencil adopts two plane combinations, molten iron apart from bottom surface apart from less, the probability that molten iron penetrates sand mold is very high, this will have a strong impact on the cast of foundry goods, very possible because molten iron reveals damage equipment.And after casting was finished, the weight of whole casting mold all concentrated on the sand mold bottom, for the excessive foundry goods of weight, is easy to cause and metals run out, and scalds belt; Even do not leak type, the molten iron of bottom is the warmmest, and is also very serious to the heat radiation of belt, and long-time the use causes belt aging.Therefore must reserve in the bottom of template larger safe distance, guarantee the safety of foundry goods in cast and transmission course.
Summary of the invention
The purpose of this invention is to provide a kind of casting technique and heat-proof device use in casting, avoid the damage to mo(u)lding equipment, raising mo(u)lding line maximum productivity reduces production costs.
Casting technique of the present invention, the moulding of moulding machine is indoor penetrate full molding sand after, the extruding, form the sand mold of half, carry out second circulation and form second half sand mold, the sand mold of the common complete of two halves sand mold, sand mold is transported to casting machine carries out automatic casting, obtain product.
Automatic casting is after molten iron is full of cup, running channel and ingate, to enter the casting mold die cavity, finishes cast after molten iron waters full casting mold die cavity.
The heat-proof device that casting technique of the present invention adopts, comprise template, template is comprised of pressure plate and back-pressure plate, at the template middle part casting mold die cavity is set, casting mold die cavity one side arranges ingate, and ingate connects running channel, running channel connects cup, the template bottom arranges concavo-convex parting device, and concavo-convex parting device bottom arranges thermal insulation board, and the template bottom connects scrapes emery stick.
The cup level embeds template.
Concavo-convex parting device one side is projection, and opposite side is groove.
The height of projection is 15mm, and the degree of depth of groove is 15mm.
When pressure plate and negative pressure version mould assembly, the male and fomale(M﹠F) of concavo-convex parting device just in time cooperates, and forms labyrinth structure, has increased the holding capacity of sand mold to molten iron in the part, so that the intensity of sand mold has obtained enhancing in this position herein.Make simultaneously flow direction and the distance of molten iron send out variation, so that molten iron is not easy to penetrate casting mold, cause leakage type.In a disguised form increase molten iron and permeated needed distance, stopped molten iron leakage type phenomenon.
Thermal insulation board is asbestos.
Thermal insulation board can bear 1800 ℃ of high temperature.Can effectively isolate the heat radiation of molten iron, solve the problem of aging of belt.Effectively the hot sand in isolation top avoids the sand of higher temperature directly to contact with belt to the heat radiation of belt, causes belt to scald.
Find the top safe distance in the moulding machine handbook and should be 70mm, the bottom safe distance should be 70-90mm.But casting using stencil heat-proof device top safe distance is 30mm, and the bottom safe distance is 15mm, still meets this series products casting requirement.
Specific operation process is:
Template pressure plate, back-pressure plate are respectively installed on the moulding machine, the operation moulding machine, the moulding of moulding machine is indoor penetrate full molding sand after, two pressing plates push, form the sand mold of half, form second half sand mold after second circulation, the sand mold of two halves sand mold mould assembly complete, then sand mold is transported to casting machine by conveying device, casting machine begins automatic casting, and namely molten iron is poured into by cup, be full of cup, running channel and ingate after, enter the casting mold die cavity from ingate, after molten iron waters completely, finish cast.
Compared with prior art, the present invention has following beneficial effect:
The present invention has improved the utilization rate of device, prevents the leakage type of bottom molten iron, avoids larger foundry goods to the damage of equipment, prolongs the service life of belt, strengthens the size of foundry goods, improves mo(u)lding line production capacity, reduces production costs.The Novel cast apparatus structure is qualified, easily implements, and effectively isolates the effect of molten iron and isolated thermal source, compares the high efficiency that the device fabrication product scope is greatly enhanced and has kept original equipment with former cast shaping plate.
Description of drawings
Figure 1 shows that structural representation of the present invention.
Among the figure: 1, running channel, 2, casting mold cavity, 3, cup, 4, ingate, 5, scrape emery stick, 6, thermal insulation board, 7, concavo-convex somatotype choked flow maze device, 8, template.
The specific embodiment
The present invention will be further described below in conjunction with embodiment.
The described casting technique of the present embodiment, moulding is indoor penetrate full molding sand after, the extruding, form the sand mold of half, carry out second circulation and form second half sand mold, the sand mold of the common complete of two halves sand mold, then sand mold is transported to casting machine and carries out automatic casting, obtain product.
Automatic casting is after molten iron is full of cup 3, running channel 1 and ingate 4, to enter casting mold die cavity 2, finishes cast after molten iron waters completely.
Such as Fig. 1, heat-proof device is adopted in the present embodiment casting, comprise template 8, template 8 is comprised of pressure plate and back-pressure plate, at template 8 middle parts casting mold die cavity 2 is set, casting mold die cavity 2 one sides arrange ingate 4, ingate 4 connects running channel 1, running channel 1 cup 3, and template 8 bottoms arrange concavo-convex parting device 7, concavo-convex parting device 7 bottoms arrange thermal insulation board 6, and template 8 low sides connect scrapes emery stick 5.
Concavo-convex parting device 7 one sides are projection, and opposite side is groove.
The height of projection is 15mm, and the degree of depth of groove is 15mm.
Casting using stencil heat-proof device top safe distance is 30mm, and the bottom safe distance is 15mm.
Specific operation process is:
The embodiment of the invention 1 and existing casting adopt heat-proof device to use the result to such as table 1.
Table 1 embodiment 1 adopts heat-proof device to use result's contrast with existing casting
| ? | Heat-proof device is adopted in existing casting | Heat-proof device is adopted in |
| The |
1 time/two stove molten iron | 0 times/day |
| |
1 day (cause and normally to produce) | 2 years |
| Use unit type | DISA231-X | DISA231-X |
Claims (7)
1. a casting technique is characterized in that, the moulding of moulding machine is indoor penetrate full molding sand after, push, form the sand mold of half, carry out second circulation and form second half sand mold, the sand mold of the common complete of two halves sand mold, sand mold are transported to casting machine and carry out automatic casting, obtain product.
2. casting technique according to claim 1 is characterized in that, automatic casting is after molten iron is full of cup (3), running channel (1) and ingate (4), to enter casting mold die cavity (2), finishes cast after molten iron waters full casting mold die cavity (2).
3. heat-proof device that casting technique claimed in claim 1 adopts, template (8) is comprised of positive and negative two pressing plates, it is characterized in that, at template (8) middle part casting mold die cavity (2) is set, casting mold die cavity (2) one sides arrange ingate (4), and ingate (4) connects running channel (1), running channel (1) connects cup (3), template (8) bottom arranges concavo-convex parting device (7), and concavo-convex parting device (7) bottom arranges thermal insulation board (6), and template (8) bottom connects scrapes emery stick (5).
4. the heat-proof device of casting technique employing according to claim 3 is characterized in that, cup (3) level embeds stencilling (8).
5. the heat-proof device of casting technique employing according to claim 3 is characterized in that, concavo-convex parting device (7) one sides are projection, and opposite side is groove.
6. the heat-proof device of casting technique employing according to claim 5 is characterized in that, the height of projection is 15mm, and the degree of depth of groove is 15mm.
7. the heat-proof device of casting technique employing according to claim 3 is characterized in that, thermal insulation board (6) is asbestos.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310228396.0A CN103302252B (en) | 2013-06-08 | 2013-06-08 | Casting technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310228396.0A CN103302252B (en) | 2013-06-08 | 2013-06-08 | Casting technology |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103302252A true CN103302252A (en) | 2013-09-18 |
| CN103302252B CN103302252B (en) | 2015-04-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310228396.0A Active CN103302252B (en) | 2013-06-08 | 2013-06-08 | Casting technology |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4250946A (en) * | 1979-07-12 | 1981-02-17 | United States Steel Corporation | Method for producing ingot mold stools |
| EP1149646A1 (en) * | 1999-11-04 | 2001-10-31 | Sintokogio, Ltd. | Molding device and molding method or sand mold |
| CN1362900A (en) * | 2000-02-17 | 2002-08-07 | 新东工业株式会社 | Method and device for filling casting sand |
| CN201586731U (en) * | 2010-01-29 | 2010-09-22 | 迁安市津唐球墨铸管有限公司 | Green sand production line upper and lower box templates |
| CN201940531U (en) * | 2011-02-10 | 2011-08-24 | 山西华翔投资有限公司 | Green sand type anti-dislocation model for vertical modeling line box-less foundry |
-
2013
- 2013-06-08 CN CN201310228396.0A patent/CN103302252B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4250946A (en) * | 1979-07-12 | 1981-02-17 | United States Steel Corporation | Method for producing ingot mold stools |
| EP1149646A1 (en) * | 1999-11-04 | 2001-10-31 | Sintokogio, Ltd. | Molding device and molding method or sand mold |
| CN1362900A (en) * | 2000-02-17 | 2002-08-07 | 新东工业株式会社 | Method and device for filling casting sand |
| CN201586731U (en) * | 2010-01-29 | 2010-09-22 | 迁安市津唐球墨铸管有限公司 | Green sand production line upper and lower box templates |
| CN201940531U (en) * | 2011-02-10 | 2011-08-24 | 山西华翔投资有限公司 | Green sand type anti-dislocation model for vertical modeling line box-less foundry |
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| Publication number | Publication date |
|---|---|
| CN103302252B (en) | 2015-04-08 |
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Denomination of invention: Casting process Effective date of registration: 20211213 Granted publication date: 20150408 Pledgee: Zibo Branch of Bank of Communications Co.,Ltd. Pledgor: SHANDONG MEILING CHEMICAL EQUIPMENT Co.,Ltd. Registration number: Y2021980014758 |