CN108160925A - A kind of production technology of high temperature resistant sprue cup - Google Patents
A kind of production technology of high temperature resistant sprue cup Download PDFInfo
- Publication number
- CN108160925A CN108160925A CN201711213793.5A CN201711213793A CN108160925A CN 108160925 A CN108160925 A CN 108160925A CN 201711213793 A CN201711213793 A CN 201711213793A CN 108160925 A CN108160925 A CN 108160925A
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- Prior art keywords
- sprue cup
- high temperature
- temperature resistant
- powder
- metatitanic acid
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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
- B22C—FOUNDRY MOULDING
- B22C1/00—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds
- B22C1/02—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by additives for special purposes, e.g. indicators, breakdown additives
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Mold Materials And Core Materials (AREA)
Abstract
The invention discloses a kind of production technologies of high temperature resistant sprue cup, include the following steps：It is raw material to choose metatitanic acid aluminium powder, metatitanic acid aluminium powder is placed in dosing chamber, and suitable moisture is added thereto, refractory fibre thereto again, thickener, adhesive and additive, then it is mixed again, form mixed liquor, choose sprue cup mold, it will be in the mixed liquor disposal pouring to sprue cup mold of formation, form blank, blank is placed in sintering oven, secondary firing is carried out under 1,500 1700 degrees Celsius of temperature condition, high temperature resistant detection is carried out under conditions of preliminary sprue cup after secondary firing is again placed in 800 1000 degrees Celsius, obtain high temperature resistant sprue cup.Production efficiency of the present invention is higher and low manufacture cost, by the use of aluminium titanates, can effectively enhance the sprue cup high temperature resistance and its quality so as to increase its service life, the pollution of environment is reduced.
Description
Technical field
The present invention relates to sprue cup preparing technical field more particularly to a kind of production technologies of high temperature resistant sprue cup.
Background technology
Casting technique be unable to do without sprue cup, and traditional sprue cup manufacture craft is：Tide mould sand is used in relatively thin iron film
Hand moulding makes.However, the thin uneven situation in lower part thickness top, and table are easily presented using the sprue cup that this kind of technique makes
Face is of poor quality, molding sand calorific intensity is low, using easily causing sand hole defect, thus the casting quality produced in casting process
Stability is poor, high rejection rate.
At present, there are many sprue cup of domestic market, but the mostly relatively low product of quality, suppressed by using traditional press
Molding sprue cup, cost is very high, and intensity is low, and since steel mold pressing is used for a long time, abrasion is serious, can largely introduce mould
The Equipments such as the impurity on tool, seriously affect product quality.And after the completion of preparation, high temperature resistance it is insufficient, easily
It is easy to cause damage.For this purpose, we have proposed a kind of production technologies of high temperature resistant sprue cup.
Invention content
The present invention proposes a kind of production technology of high temperature resistant sprue cup, to solve mentioned above in the background art ask
Topic.
The present invention proposes a kind of production technology of high temperature resistant sprue cup, includes the following steps：
S1：It is raw material to choose metatitanic acid aluminium powder, and metatitanic acid aluminium powder is moved in fine grinding machine, fine gtinding processing, so
The metatitanic acid aluminium powder after grinding is filtered net afterwards to be filtered, and need to ensure that the particle of metatitanic acid aluminium powder is less than 50 nanometers, and receive
Collect the metatitanic acid aluminium powder of gained, ensure that the quality of metatitanic acid aluminium powder；
S2：By treated in S1, metatitanic acid aluminium powder is placed in dosing chamber, and adds suitable moisture thereto, and aluminium titanates
The molal weight of powder and moisture ratio is 1：2, it is mixed under conditions of 50-70 degrees Celsius, treats that it mixes 10-20min
Afterwards, refractory fibre, thickener, adhesive and additive thereto again, are then mixed, form mixing again
Liquid, it is spare；
S3：Sprue cup mold is chosen, and after sprue cup mold is cleaned, be again placed in 200-300 degrees Celsius of item
Preheating 10-16min is carried out under part, is taken out, and one layer of releasing agent is sprayed in its inner surface, it is spare；
S4：By in the sprue cup mold handled in the mixed liquor disposal pouring to S3 formed in S2, then mold is put
10-20min is fired under conditions of 1000-1200 degrees Celsius, removes sprue cup mold, forms blank, and by its surface
Carry out preliminary treatment；
S5：Blank is placed in sintering oven, secondary firing is carried out under 1500-1700 degrees Celsius of temperature condition, when it
After the completion of firing, the temperature inside sintering furnace is slowly lowered to room temperature, after it places 20-30min, cooling is taken out, and is formed
Preliminary sprue cup；
S6：High temperature resistant inspection is carried out under conditions of preliminary sprue cup after secondary firing is again placed in 800-1000 degrees Celsius
It surveys, need to ensure not damage, is indeformable and not blistering, after the completion, its surface is subjected to grinding process again, then spraying needs
Coating to get to high temperature resistant sprue cup.
Preferably, the thickener in S2 is the mixed of magnesium aluminium spinel powder, dispersant, pure-acrylic emulsion and instant thickener
Close material, and magnesium aluminium spinel powder, dispersant, pure-acrylic emulsion and instant thickener weight ratio be 2：0.2：1：0.2.
Preferably, the adhesive is specially PVA adhesives.
Preferably, it before high temperature resistant detection, also needs preliminary sprue cup being placed under conditions of subzero 10 degrees Celsius of subzero 2-
30-40min is placed, so as to detect its cold performance.
Preferably, the additive in S2 is the mixed of technical grade Cosan, sericite in powder, metallic silicon and dispersed latex powder
Close material, and technical grade Cosan, sericite in powder, metallic silicon and dispersed latex powder weight ratio be 2：0.5：0.5：1.
A kind of production technology of high temperature resistant sprue cup proposed by the present invention, advantageous effect are：Cast gate provided by the invention
The production technology of cup, production technology production efficiency is higher, operation human factor influences smaller, low manufacture cost, passes through aluminium titanates
Use, can effectively enhance high temperature resistance and its quality of the sprue cup so as to increase its service life, it is right
The pollution of environment is reduced.
Specific embodiment
With reference to specific embodiment, the present invention will be further described.
Embodiment 1
The present invention proposes a kind of production technology of high temperature resistant sprue cup, includes the following steps：
S1：It is raw material to choose metatitanic acid aluminium powder, and metatitanic acid aluminium powder is moved in fine grinding machine, fine gtinding processing, so
The metatitanic acid aluminium powder after grinding is filtered net afterwards to be filtered, and need to ensure that the particle of metatitanic acid aluminium powder is less than 50 nanometers, and receive
Collect the metatitanic acid aluminium powder of gained, ensure that the quality of metatitanic acid aluminium powder；
S2：By treated in S1, metatitanic acid aluminium powder is placed in dosing chamber, and adds suitable moisture thereto, and aluminium titanates
The molal weight of powder and moisture ratio is 1：2, it is mixed under conditions of 50 degrees Celsius, after it mixes 10min, again
Refractory fibre, thickener, adhesive and additive thereto, are then mixed again, form mixed liquor, spare；
S3：Sprue cup mold is chosen, and after sprue cup mold is cleaned, be again placed under conditions of 200 degrees Celsius
Preheating 10min is carried out, is taken out, and one layer of releasing agent is sprayed in its inner surface, it is spare；
S4：By in the sprue cup mold handled in the mixed liquor disposal pouring to S3 formed in S2, then mold is put
10min is fired under conditions of 1000 degrees Celsius, removes sprue cup mold, forms blank, and its surface is carried out tentatively
Processing；
S5：Blank is placed in sintering oven, secondary firing is carried out under 1500 degrees Celsius of temperature condition, when it has been fired
Temperature inside sintering furnace is slowly lowered to room temperature by Cheng Hou, and after it places 20min, cooling is taken out, and forms preliminary cast gate
Cup；
S6：High temperature resistant detection is carried out under conditions of preliminary sprue cup after secondary firing is again placed in 800 degrees Celsius, is needed
Guarantee does not damage, is indeformable and not blistering, after the completion, its surface is carried out grinding process again, then sprays the painting of needs
Material is to get to high temperature resistant sprue cup.
Thickener in S2 is the mixed material of magnesium aluminium spinel powder, dispersant, pure-acrylic emulsion and instant thickener,
And magnesium aluminium spinel powder, dispersant, pure-acrylic emulsion and instant thickener weight ratio be 2：0.2：1：0.2.
The adhesive is specially PVA adhesives.
Before high temperature resistant detection, also need preliminary sprue cup being placed under conditions of subzero 2 degrees Celsius and place 30min, so as to
Its cold performance can be detected.
Additive in S2 is the mixed material of technical grade Cosan, sericite in powder, metallic silicon and dispersed latex powder,
And technical grade Cosan, sericite in powder, metallic silicon and dispersed latex powder weight ratio be 2：0.5：0.5：1.
Embodiment 2
The present invention proposes a kind of production technology of high temperature resistant sprue cup, includes the following steps：
S1：It is raw material to choose metatitanic acid aluminium powder, and metatitanic acid aluminium powder is moved in fine grinding machine, fine gtinding processing, so
The metatitanic acid aluminium powder after grinding is filtered net afterwards to be filtered, and need to ensure that the particle of metatitanic acid aluminium powder is less than 50 nanometers, and receive
Collect the metatitanic acid aluminium powder of gained, ensure that the quality of metatitanic acid aluminium powder；
S2：By treated in S1, metatitanic acid aluminium powder is placed in dosing chamber, and adds suitable moisture thereto, and aluminium titanates
The molal weight of powder and moisture ratio is 1：2, it is mixed under conditions of 55 degrees Celsius, after it mixes 13min, again
Refractory fibre, thickener, adhesive and additive thereto, are then mixed again, form mixed liquor, spare；
S3：Sprue cup mold is chosen, and after sprue cup mold is cleaned, be again placed under conditions of 230 degrees Celsius
Preheating 12min is carried out, is taken out, and one layer of releasing agent is sprayed in its inner surface, it is spare；
S4：By in the sprue cup mold handled in the mixed liquor disposal pouring to S3 formed in S2, then mold is put
13min is fired under conditions of 1050 degrees Celsius, removes sprue cup mold, forms blank, and its surface is carried out tentatively
Processing；
S5：Blank is placed in sintering oven, secondary firing is carried out under 1550 degrees Celsius of temperature condition, when it has been fired
Temperature inside sintering furnace is slowly lowered to room temperature by Cheng Hou, and after it places 23min, cooling is taken out, and forms preliminary cast gate
Cup；
S6：High temperature resistant detection is carried out under conditions of preliminary sprue cup after secondary firing is again placed in 850 degrees Celsius, is needed
Guarantee does not damage, is indeformable and not blistering, after the completion, its surface is carried out grinding process again, then sprays the painting of needs
Material is to get to high temperature resistant sprue cup.
Thickener in S2 is the mixed material of magnesium aluminium spinel powder, dispersant, pure-acrylic emulsion and instant thickener,
And magnesium aluminium spinel powder, dispersant, pure-acrylic emulsion and instant thickener weight ratio be 2：0.2：1：0.2.
The adhesive is specially PVA adhesives.
Before high temperature resistant detection, also need preliminary sprue cup being placed under conditions of subzero 5 degrees Celsius and place 33min, so as to
Its cold performance can be detected.
Additive in S2 is the mixed material of technical grade Cosan, sericite in powder, metallic silicon and dispersed latex powder,
And technical grade Cosan, sericite in powder, metallic silicon and dispersed latex powder weight ratio be 2：0.5：0.5：1.
Embodiment 3
The present invention proposes a kind of production technology of high temperature resistant sprue cup, includes the following steps：
S1：It is raw material to choose metatitanic acid aluminium powder, and metatitanic acid aluminium powder is moved in fine grinding machine, fine gtinding processing, so
The metatitanic acid aluminium powder after grinding is filtered net afterwards to be filtered, and need to ensure that the particle of metatitanic acid aluminium powder is less than 50 nanometers, and receive
Collect the metatitanic acid aluminium powder of gained, ensure that the quality of metatitanic acid aluminium powder；
S2：By treated in S1, metatitanic acid aluminium powder is placed in dosing chamber, and adds suitable moisture thereto, and aluminium titanates
The molal weight of powder and moisture ratio is 1：2, it is mixed under conditions of 65 degrees Celsius, after it mixes 17min, again
Refractory fibre, thickener, adhesive and additive thereto, are then mixed again, form mixed liquor, spare；
S3：Sprue cup mold is chosen, and after sprue cup mold is cleaned, be again placed under conditions of 270 degrees Celsius
Preheating 14min is carried out, is taken out, and one layer of releasing agent is sprayed in its inner surface, it is spare；
S4：By in the sprue cup mold handled in the mixed liquor disposal pouring to S3 formed in S2, then mold is put
17min is fired under conditions of 1100 degrees Celsius, removes sprue cup mold, forms blank, and its surface is carried out tentatively
Processing；
S5：Blank is placed in sintering oven, secondary firing is carried out under 1600 degrees Celsius of temperature condition, when it has been fired
Temperature inside sintering furnace is slowly lowered to room temperature by Cheng Hou, and after it places 27min, cooling is taken out, and forms preliminary cast gate
Cup；
S6：High temperature resistant detection is carried out under conditions of preliminary sprue cup after secondary firing is again placed in 900 degrees Celsius, is needed
Guarantee does not damage, is indeformable and not blistering, after the completion, its surface is carried out grinding process again, then sprays the painting of needs
Material is to get to high temperature resistant sprue cup.
Thickener in S2 is the mixed material of magnesium aluminium spinel powder, dispersant, pure-acrylic emulsion and instant thickener,
And magnesium aluminium spinel powder, dispersant, pure-acrylic emulsion and instant thickener weight ratio be 2：0.2：1：0.2.
The adhesive is specially PVA adhesives.
Before high temperature resistant detection, also need preliminary sprue cup being placed under conditions of subzero 8 degrees Celsius and place 37min, so as to
Its cold performance can be detected.
Additive in S2 is the mixed material of technical grade Cosan, sericite in powder, metallic silicon and dispersed latex powder,
And technical grade Cosan, sericite in powder, metallic silicon and dispersed latex powder weight ratio be 2：0.5：0.5：1.
Embodiment 4
The present invention proposes a kind of production technology of high temperature resistant sprue cup, includes the following steps：
S1：It is raw material to choose metatitanic acid aluminium powder, and metatitanic acid aluminium powder is moved in fine grinding machine, fine gtinding processing, so
The metatitanic acid aluminium powder after grinding is filtered net afterwards to be filtered, and need to ensure that the particle of metatitanic acid aluminium powder is less than 50 nanometers, and receive
Collect the metatitanic acid aluminium powder of gained, ensure that the quality of metatitanic acid aluminium powder；
S2：By treated in S1, metatitanic acid aluminium powder is placed in dosing chamber, and adds suitable moisture thereto, and aluminium titanates
The molal weight of powder and moisture ratio is 1：2, it is mixed under conditions of 70 degrees Celsius, after it mixes 20min, again
Refractory fibre, thickener, adhesive and additive thereto, are then mixed again, form mixed liquor, spare；
S3：Sprue cup mold is chosen, and after sprue cup mold is cleaned, be again placed under conditions of 300 degrees Celsius
Preheating 16min is carried out, is taken out, and one layer of releasing agent is sprayed in its inner surface, it is spare；
S4：By in the sprue cup mold handled in the mixed liquor disposal pouring to S3 formed in S2, then mold is put
20min is fired under conditions of 1200 degrees Celsius, removes sprue cup mold, forms blank, and its surface is carried out tentatively
Processing；
S5：Blank is placed in sintering oven, secondary firing is carried out under 1700 degrees Celsius of temperature condition, when it has been fired
Temperature inside sintering furnace is slowly lowered to room temperature by Cheng Hou, and after it places 30min, cooling is taken out, and forms preliminary cast gate
Cup；
S6：High temperature resistant detection is carried out under conditions of preliminary sprue cup after secondary firing is again placed in 1000 degrees Celsius,
It need to ensure not damage, is indeformable and not blistering, after the completion, its surface being subjected to grinding process again, then spraying needs
Coating is to get to high temperature resistant sprue cup.
Thickener in S2 is the mixed material of magnesium aluminium spinel powder, dispersant, pure-acrylic emulsion and instant thickener,
And magnesium aluminium spinel powder, dispersant, pure-acrylic emulsion and instant thickener weight ratio be 2：0.2：1：0.2.
The adhesive is specially PVA adhesives.
Before high temperature resistant detection, also need preliminary sprue cup being placed under conditions of subzero 10 degrees Celsius and place 40min, so as to
Its cold performance can be detected.
Additive in S2 is the mixed material of technical grade Cosan, sericite in powder, metallic silicon and dispersed latex powder,
And technical grade Cosan, sericite in powder, metallic silicon and dispersed latex powder weight ratio be 2：0.5：0.5：1.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (5)
1. a kind of production technology of high temperature resistant sprue cup, which is characterized in that include the following steps：
S1：It is raw material to choose metatitanic acid aluminium powder, and metatitanic acid aluminium powder is moved in fine grinding machine, then fine gtinding processing will
Metatitanic acid aluminium powder after grinding is filtered net and is filtered, and need to ensure that the particle of metatitanic acid aluminium powder is less than 50 nanometers, and collect institute
The metatitanic acid aluminium powder obtained, ensure that the quality of metatitanic acid aluminium powder；
S2：By treated in S1, metatitanic acid aluminium powder is placed in dosing chamber, and adds suitable moisture thereto, and metatitanic acid aluminium powder with
The molal weight ratio of moisture is 1：2, it is mixed under conditions of 50-70 degrees Celsius, after it mixes 10-20min, then
Secondary refractory fibre thereto, thickener, adhesive and additive, are then mixed again, form mixed liquor, standby
With；
S3：Sprue cup mold is chosen, and after sprue cup mold is cleaned, be again placed under conditions of 200-300 degrees Celsius
Preheating 10-16min is carried out, is taken out, and one layer of releasing agent is sprayed in its inner surface, it is spare；
S4：By in the sprue cup mold handled in the mixed liquor disposal pouring to S3 formed in S2, then mold is placed in
10-20min is fired under conditions of 1000-1200 degrees Celsius, removes sprue cup mold, forms blank, and by its surface into
Row preliminary treatment；
S5：Blank is placed in sintering oven, secondary firing is carried out under 1500-1700 degrees Celsius of temperature condition, when its firing
After the completion, the temperature inside sintering furnace is slowly lowered to room temperature, after it places 20-30min, cooling is taken out, and is formed preliminary
Sprue cup；
S6：High temperature resistant detection is carried out under conditions of preliminary sprue cup after secondary firing is again placed in 800-1000 degrees Celsius,
It need to ensure not damage, is indeformable and not blistering, after the completion, its surface being subjected to grinding process again, then spraying needs
Coating is to get to high temperature resistant sprue cup.
2. a kind of production technology of high temperature resistant sprue cup according to claim 1, it is characterised in that：Thickener in S2
For the mixed material of magnesium aluminium spinel powder, dispersant, pure-acrylic emulsion and instant thickener, and magnesium aluminium spinel powder, dispersant,
The weight ratio of pure-acrylic emulsion and instant thickener is 2：0.2：1：0.2.
3. a kind of production technology of high temperature resistant sprue cup according to claim 1, it is characterised in that：The adhesive tool
Body is PVA adhesives.
4. a kind of production technology of high temperature resistant sprue cup according to claim 1, it is characterised in that：It is detected in high temperature resistant
Before, it also needs preliminary sprue cup being placed under conditions of subzero 10 degrees Celsius of subzero 2- and places 30-40min, so as to detect it
Cold performance.
5. a kind of production technology of high temperature resistant sprue cup according to claim 1, it is characterised in that：Additive in S2
For the mixed material of technical grade Cosan, sericite in powder, metallic silicon and dispersed latex powder, and technical grade Cosan, sericite
The weight ratio of powder, metallic silicon and dispersed latex powder is 2：0.5：0.5：1.
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| CN201711213793.5A CN108160925B (en) | 2017-11-28 | 2017-11-28 | A kind of production technology of high temperature resistant sprue cup |
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| CN201711213793.5A CN108160925B (en) | 2017-11-28 | 2017-11-28 | A kind of production technology of high temperature resistant sprue cup |
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| CN108160925B CN108160925B (en) | 2019-11-05 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109128043A (en) * | 2018-09-03 | 2019-01-04 | 长兴中建耐火材料科技有限公司 | A kind of dedicated cast gate of molten iron casting ladle protection against erosion and preparation method thereof |
| CN114589291A (en) * | 2022-03-15 | 2022-06-07 | 航发优材(镇江)钛合金精密成型有限公司 | Preparation method of low-cost sprue cup for titanium alloy ceramic mold casting |
| CN114589291B (en) * | 2022-03-15 | 2024-06-07 | 航发优材(镇江)钛合金精密成型有限公司 | Preparation method of low-cost pouring cup for titanium alloy ceramic mold casting |
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| US7100669B1 (en) * | 2003-04-09 | 2006-09-05 | Brunswick Corporation | Aluminum-silicon casting alloy having refined primary silicon due to pressure |
| CN103350446A (en) * | 2013-08-01 | 2013-10-16 | 三门峡阳光铸材有限公司 | Method for preparing fiber pouring cup for casting |
| CN104209465A (en) * | 2013-05-29 | 2014-12-17 | 贵阳市新航铸造材料科技开发有限公司 | Manufacture method of ceramic sprue cup for investment casting |
| 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 |
| CN104942231A (en) * | 2015-06-30 | 2015-09-30 | 共享装备有限公司 | Manufacturing method of ceramic sprue cup for casting |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US7100669B1 (en) * | 2003-04-09 | 2006-09-05 | Brunswick Corporation | Aluminum-silicon casting alloy having refined primary silicon due to pressure |
| CN104209465A (en) * | 2013-05-29 | 2014-12-17 | 贵阳市新航铸造材料科技开发有限公司 | Manufacture method of ceramic sprue cup for investment casting |
| CN103350446A (en) * | 2013-08-01 | 2013-10-16 | 三门峡阳光铸材有限公司 | Method for preparing fiber pouring cup for casting |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109128043A (en) * | 2018-09-03 | 2019-01-04 | 长兴中建耐火材料科技有限公司 | A kind of dedicated cast gate of molten iron casting ladle protection against erosion and preparation method thereof |
| CN114589291A (en) * | 2022-03-15 | 2022-06-07 | 航发优材(镇江)钛合金精密成型有限公司 | Preparation method of low-cost sprue cup for titanium alloy ceramic mold casting |
| CN114589291B (en) * | 2022-03-15 | 2024-06-07 | 航发优材(镇江)钛合金精密成型有限公司 | Preparation method of low-cost pouring cup for titanium alloy ceramic mold casting |
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|---|---|
| CN108160925B (en) | 2019-11-05 |
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