CN102554128A - Heat-insulating riser - Google Patents
Heat-insulating riser Download PDFInfo
- Publication number
- CN102554128A CN102554128A CN2010106087513A CN201010608751A CN102554128A CN 102554128 A CN102554128 A CN 102554128A CN 2010106087513 A CN2010106087513 A CN 2010106087513A CN 201010608751 A CN201010608751 A CN 201010608751A CN 102554128 A CN102554128 A CN 102554128A
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- Prior art keywords
- head body
- rising head
- insulated feeder
- riser
- exothermic mixture
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Abstract
The invention relates to a heat-insulating riser, which is placed in a casting mould used during casting with metal. The heat-insulating riser is provided with a riser body, wherein a riser opening is formed at a bottom region of the riser body and is communicated with a cavity of the casting mould; a vertical positioning hole is formed in the riser body; the lower part of the positioning hole is connected with the riser opening; the riser body comprises a first riser body and a second riser body; the first riser body is positioned above the second riser body and is formed by mixing and foaming a heating agent and foaming particles; the second riser body is formed through foaming of the foaming particles; and the first riser body and the second riser body are fixed into a whole through a foaming process. Since the heat-insulating riser has the advantage of low using amount of the heating agent, the manufacturing cost and the cost are low.
Description
Technical field
The present invention relates to a kind of rising head that when the cast metal, is used for mold.
Background technology
Rising head is for avoiding foundry goods the additional part that defective is attached to foundry goods top or side to occur.The rising head of using low Heat Conduction Material making is insulated feeder.Longer than rising head inner metal liquid setting time with common rising head, feeding is effective.Traditional insulated feeder is put in exothermic mixture and processes the rising head cavity in the core, and this becomes insulating riser sleeve again, and is as shown in Figure 9.Heating dosage owing to needs when this insulating riser sleeve is made is big, so also caused the high drawback of cost of manufacture.
Summary of the invention
The present invention provides a kind of cost of manufacture low insulated feeder.
For achieving the above object; The technical scheme that the present invention adopts is: a kind of insulated feeder; Be used for putting into a mold that uses during with metal casting, described insulated feeder has a rising head body, and the bottom section of described rising head body forms a riser openings; Described riser openings is used for being connected with the die cavity of mold; Described rising head body interior is provided with a vertical locating hole, and the bottom of described locating hole and described riser openings are joined, and described rising head body comprises the first rising head body and the second rising head body; The described first rising head body is positioned at the top of the described second rising head body; The described first rising head body is for to be formed by exothermic mixture and frostproof froth n particle mixing post-foaming, and the described second rising head body is formed by the frostproof froth n granule foaming, and the described first rising head body and the second rising head body are fixed into one through foam process.
Preferably, to be fixed into one be to realize at the foaming process of the described second rising head body for the described first rising head body and the second rising head body.
Preferably, in the described first rising head body, the proportion of described exothermic mixture and described frostproof froth n particle is: 3-5:7-5.
Preferably, go back dip-coating on the outside wall surface of described rising head body heat retaining and exothermal coating is arranged.
Preferably, the bottom of the described second rising head body is a neck.
Preferably, described exothermic mixture is carbon type exothermic mixture and carbon-free type exothermic mixture.
Preferably, described exothermic mixture is following by weight ratio: < 30%, < 25%, < 10%, < 10%, all the other are aluminium ash, aluminium vanadine to sodium fluoride to aluminium powder for sodium nitrate, potassium nitrate for fine iron breeze, iron oxide.
Preferably, described exothermic mixture is following by weight ratio: < 10%, < 10%, all the other are iron oxide to sodium fluoride for sodium nitrate, potassium nitrate.
Because the technique scheme utilization, the present invention compared with prior art has advantage: insulated feeder of the present invention is few owing to the exothermic mixture consumption, and its low cost of manufacture is cheap.
Description of drawings
Accompanying drawing 1 is the structural representation of insulated feeder of the present invention;
Accompanying drawing 2-8 is the use figure of insulated feeder of the present invention;
Accompanying drawing 9 is the structural representation of the insulating riser sleeve of this background technology;
In the above accompanying drawing: 1, the first rising head body; 2, the second rising head body; 3, riser openings; 4, neck; 5, pin; 6, core; 7, die cavity; 8, metal liquid; 9, metal solid-liquid two phase materials; 10, shrinkage cavity; 11, casting body; 12, locating hole.
The specific embodiment
Below in conjunction with embodiment shown in the drawings the present invention is further described:
Insulated feeder as shown in Figure 1; Be used for putting into a mold that uses during with metal casting; This insulated feeder has a rising head body, and the bottom section of rising head body forms a riser openings 3, and riser openings 3 is used for being connected with the die cavity of mold; The rising head body interior is provided with a vertical locating hole 12, and the bottom of locating hole 12 and riser openings 3 are joined.The rising head body divides two parts up and down, and top is divided into the first rising head body 1, the bottom is divided into the second rising head body 2.The first rising head body 1 is for to be formed by exothermic mixture and frostproof froth n particle mixing post-foaming; The volume ratio of exothermic mixture and frostproof froth n particle is: 3-5:7-5; The second rising head body 2 is formed by the frostproof froth n granule foaming; The first rising head body 1 and the second rising head body 2 are fixed into one through foam process, and the first rising head body 1 and the second rising head body 2 both to be fixed into one be to realize at the foaming process of the second rising head body 2.In making the process of insulated feeder, after 1 foaming of the first rising head body is accomplished, it is put in is used for making the mould of the second rising head body 2 and adds the expanded beads foaming, the first rising head body 1 and the second rising head body 2 will be synthesized one after foaming is accomplished.
In order to increase the heat-insulating property of this insulated feeder, also dip-coating has heat retaining and exothermal coating on the outside wall surface of rising head body.The bottom of the second rising head body 2 is a neck 4.The size of neck 4 is set according to the actual needs in when casting.
Mold goes for cast steel, cast iron, cast aluminium, and cast steel, cast iron, cast aluminium are equipped with different exothermic mixtures.Like cast steel is carbon type exothermic mixture and carbon-free type exothermic mixture; Cast iron is by as follows by weight ratio: < 30%, < 25%, < 10%, < 10%, all the other are aluminium ash, aluminium vanadine to sodium fluoride to aluminium powder for sodium nitrate, potassium nitrate for fine iron breeze, iron oxide; Cast aluminium is an iron oxide, sodium nitrate, potassium nitrate 10%, sodium fluoride 10% etc.
Set forth the course of work of this insulated feeder when casting below:
As shown in Figure 2; In the process of making core, at first the locating hole 12 of insulated feeder through inside is inserted on the pin 5 on the mould, through penetrating sand and solidifying insulated feeder in core 6; When follow-up molding, this insulated feeder will eject in core 6 simultaneously.
Like Fig. 3,4,5, shown in 6, in die cavity 7, constantly annotate metal liquid 8 this moment.Because riser openings 3 communicates with die cavity 7, this moment, metal liquid 8 will be from getting in the insulated feeder, and metal liquid is the second rising head body, 2 scaling loss of foam with material.When metal liquid 8 rises the first rising head body, 1 place, the iron loss first rising head body 1, when the scaling loss first rising head body 1, the exothermic mixture of the foam of scaling loss while with inside reacts, thus heating of metal liquid reaches the effect of heating and insulation.
As shown in Figure 7, the metal liquid of this moment has become the metal solid-liquid two phase materials 9 that are transformed into liquid, solid two phases.Existing part shrinkage cavity 10 this moment on the top of insulated feeder.As shown in Figure 8, this moment, the metallics of liquid-solid two-phase became casting body 11, and the shrinkage cavity at insulated feeder top further enlarges.
After casting body 11 coolings, knockout takes out casting body 11 and clears up, and excision insulated feeder part is promptly processed desired foundry goods.
The foregoing description only is explanation technical conceive of the present invention and characteristics, and its purpose is to let the personage who is familiar with this technology can understand content of the present invention and enforcement according to this, can not limit protection scope of the present invention with this.All equivalences that spirit is done according to the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (8)
1. insulated feeder; Be used for putting into a mold that uses during with metal casting, it is characterized in that: described insulated feeder has a rising head body, and the bottom section of described rising head body forms a riser openings; Described riser openings is used for being connected with the die cavity of mold; Described rising head body interior is provided with a vertical locating hole, and the bottom of described locating hole and described riser openings are joined, and described rising head body comprises the first rising head body and the second rising head body; The described first rising head body is positioned at the top of the described second rising head body; The described first rising head body is for to be formed by exothermic mixture and frostproof froth n particle mixing post-foaming, and the described second rising head body is formed by the frostproof froth n granule foaming, and the described first rising head body and the second rising head body are fixed into one through foam process.
2. insulated feeder according to claim 1 is characterized in that: it is to realize at the foaming process of the described second rising head body that the described first rising head body and the second rising head body are fixed into one.
3. insulated feeder according to claim 2 is characterized in that: in the described first rising head body, the volume ratio of described exothermic mixture and described frostproof froth n particle is: 3-5:7-5.
4. insulated feeder according to claim 1 is characterized in that: going back dip-coating on the outside wall surface of described rising head body has heat retaining and exothermal coating.
5. insulated feeder according to claim 1 is characterized in that: the bottom of the described second rising head body is a neck.
6. insulated feeder according to claim 1 is characterized in that: described exothermic mixture is carbon type exothermic mixture and carbon-free type exothermic mixture.
7. insulated feeder according to claim 1 is characterized in that: described exothermic mixture is following by weight ratio: < 30%, < 25%, < 10%, < 10%, all the other are aluminium ash, aluminium vanadine to sodium fluoride to aluminium powder for sodium nitrate, potassium nitrate for fine iron breeze, iron oxide.
8. insulated feeder according to claim 1 is characterized in that: described exothermic mixture is following by weight ratio: < 10%, < 10%, all the other are iron oxide to sodium fluoride for sodium nitrate, potassium nitrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106087513A CN102554128A (en) | 2010-12-28 | 2010-12-28 | Heat-insulating riser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106087513A CN102554128A (en) | 2010-12-28 | 2010-12-28 | Heat-insulating riser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102554128A true CN102554128A (en) | 2012-07-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010106087513A Pending CN102554128A (en) | 2010-12-28 | 2010-12-28 | Heat-insulating riser |
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| CN (1) | CN102554128A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104084542A (en) * | 2014-06-26 | 2014-10-08 | 浙江锦诚耐火材料有限公司 | Carbon-free heating heat-preserving agent |
| CN104439125A (en) * | 2014-12-22 | 2015-03-25 | 河南省西保冶材集团有限公司 | Special shrinkage-proof agent for stainless steel ingot feeder head |
| CN107584076A (en) * | 2016-07-06 | 2018-01-16 | 科华控股股份有限公司 | It is a kind of to set heating block to prevent the structure that rising head binds at the top of casting pressing port |
| CN107937657A (en) * | 2017-11-24 | 2018-04-20 | 张洪战 | A kind of converter high-efficiency heating agent |
| CN108015235A (en) * | 2018-01-12 | 2018-05-11 | 刘思彤 | A kind of insulating and heating riser |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57199543A (en) * | 1981-05-29 | 1982-12-07 | Daiei Kogyo Kk | Endothermic and heat insulating riser device for casting |
| DE3317631A1 (en) * | 1983-05-14 | 1984-11-15 | Gerhard Dipl.-Ing. 5070 Bergisch Gladbach Vitt | Feeder for sealed feeding of castings |
| WO2000027561A1 (en) * | 1998-11-10 | 2000-05-18 | Ashland Inc. | Casting mold assembly containing a consumable material |
| JP2000288685A (en) * | 1999-04-12 | 2000-10-17 | Hodogaya Ashland Kk | Manufacture of sleeve for feeder head |
| US20040238153A1 (en) * | 2003-05-27 | 2004-12-02 | Edgardo Campomanes | Evaporative foam risers with exothermic topping |
| CN201357206Y (en) * | 2009-02-27 | 2009-12-09 | 湖南五星重工有限公司 | Mold for lost foam casting for large-scale high manganese steel crushing walls, roll crushing walls and toothed plates |
| CN201900220U (en) * | 2010-12-28 | 2011-07-20 | 苏州明志科技有限公司 | Insulating riser |
-
2010
- 2010-12-28 CN CN2010106087513A patent/CN102554128A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57199543A (en) * | 1981-05-29 | 1982-12-07 | Daiei Kogyo Kk | Endothermic and heat insulating riser device for casting |
| DE3317631A1 (en) * | 1983-05-14 | 1984-11-15 | Gerhard Dipl.-Ing. 5070 Bergisch Gladbach Vitt | Feeder for sealed feeding of castings |
| WO2000027561A1 (en) * | 1998-11-10 | 2000-05-18 | Ashland Inc. | Casting mold assembly containing a consumable material |
| JP2000288685A (en) * | 1999-04-12 | 2000-10-17 | Hodogaya Ashland Kk | Manufacture of sleeve for feeder head |
| US20040238153A1 (en) * | 2003-05-27 | 2004-12-02 | Edgardo Campomanes | Evaporative foam risers with exothermic topping |
| CN201357206Y (en) * | 2009-02-27 | 2009-12-09 | 湖南五星重工有限公司 | Mold for lost foam casting for large-scale high manganese steel crushing walls, roll crushing walls and toothed plates |
| CN201900220U (en) * | 2010-12-28 | 2011-07-20 | 苏州明志科技有限公司 | Insulating riser |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104084542A (en) * | 2014-06-26 | 2014-10-08 | 浙江锦诚耐火材料有限公司 | Carbon-free heating heat-preserving agent |
| CN104084542B (en) * | 2014-06-26 | 2016-03-30 | 浙江锦诚耐火材料有限公司 | A kind of carbon-free heat preservation agent |
| CN104439125A (en) * | 2014-12-22 | 2015-03-25 | 河南省西保冶材集团有限公司 | Special shrinkage-proof agent for stainless steel ingot feeder head |
| CN107584076A (en) * | 2016-07-06 | 2018-01-16 | 科华控股股份有限公司 | It is a kind of to set heating block to prevent the structure that rising head binds at the top of casting pressing port |
| CN107937657A (en) * | 2017-11-24 | 2018-04-20 | 张洪战 | A kind of converter high-efficiency heating agent |
| CN108015235A (en) * | 2018-01-12 | 2018-05-11 | 刘思彤 | A kind of insulating and heating riser |
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Application publication date: 20120711 |