CN102557564B - High-fluidity tire forming gypsum powder and preparation process thereof - Google Patents
High-fluidity tire forming gypsum powder and preparation process thereof Download PDFInfo
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- CN102557564B CN102557564B CN 201110445982 CN201110445982A CN102557564B CN 102557564 B CN102557564 B CN 102557564B CN 201110445982 CN201110445982 CN 201110445982 CN 201110445982 A CN201110445982 A CN 201110445982A CN 102557564 B CN102557564 B CN 102557564B
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- gypsum powder
- fluidity
- tire forming
- preparation process
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- 239000000843 powder Substances 0.000 title claims abstract description 25
- 238000002360 preparation method Methods 0.000 title abstract description 12
- 229910052602 gypsum Inorganic materials 0.000 title abstract description 10
- 239000010440 gypsum Substances 0.000 title abstract description 10
- 239000002994 raw material Substances 0.000 claims abstract description 13
- 235000006040 Prunus persica var persica Nutrition 0.000 claims abstract description 8
- 238000005266 casting Methods 0.000 claims description 21
- 239000011505 plaster Substances 0.000 claims description 20
- 238000005516 engineering process Methods 0.000 claims description 9
- 244000144730 Amygdalus persica Species 0.000 claims description 7
- 239000011398 Portland cement Substances 0.000 claims description 7
- 229920005989 resin Polymers 0.000 claims description 7
- 239000011347 resin Substances 0.000 claims description 7
- -1 sulfonated melamine compound Chemical class 0.000 claims description 7
- 238000005303 weighing Methods 0.000 claims description 3
- 238000003756 stirring Methods 0.000 abstract description 2
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 abstract 2
- 230000015271 coagulation Effects 0.000 abstract 2
- 238000005345 coagulation Methods 0.000 abstract 2
- 229920000877 Melamine resin Polymers 0.000 abstract 1
- 240000006413 Prunus persica var. persica Species 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 abstract 1
- IVJISJACKSSFGE-UHFFFAOYSA-N formaldehyde;1,3,5-triazine-2,4,6-triamine Chemical class O=C.NC1=NC(N)=NC(N)=N1 IVJISJACKSSFGE-UHFFFAOYSA-N 0.000 abstract 1
- 238000009776 industrial production Methods 0.000 abstract 1
- 229910052943 magnesium sulfate Inorganic materials 0.000 abstract 1
- 235000019341 magnesium sulphate Nutrition 0.000 abstract 1
- 239000003469 silicate cement Substances 0.000 abstract 1
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000007858 starting material Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000004513 sizing Methods 0.000 description 2
- 239000012745 toughening agent Substances 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Landscapes
- Tires In General (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
A high-fluidity tire forming gypsum powder and a preparation process thereof are provided. The gypsum powder is composed of the following raw materials in parts by weight: 100 parts of alpha-gypsum powder, 15-25 parts of white silicate cement, 0.5-1.5 parts of sulfonated melamine formaldehyde resin, 1-3 parts of peach gum, and 5-15 parts of magnesium sulfate. The invention further provides a preparation process of the high-fluidity tire forming gypsum powder. The high-fluidity tire forming gypsum powder of the invention not only has long effective stirring time and flowing time but also has proper initial coagulation time and final coagulation time; the tire forming gypsum die prepared by the invention is featured with high intensity, wide application range and long service life; and the preparation process is simple and easy in operation. In this way, the high-fluidity tire forming gypsum powder of the invention is beneficial to industrial production.
Description
Technical field
The present invention relates to a kind of high workability tire casting plaster powder and preparation technology thereof.
Background technology
At present, most of tire casting plaster die production producer is when making tire casting plaster mould, all directly use high strength gypsum (α-gypsum) powder to be starting material, be that 1:0.5～0.55 is mixed with water and carried out Mold Making by mass ratio, because the rare thick degree of gained calcium plaster is higher, its effective churning time has only 3min, flowing time 3～5min, presetting period 9min, final setting time 30min.In addition, utilize the obtained mould of above-mentioned α-terra alba, the coefficient of expansion is big, is about 0.5; Dry folding strength is low, for about 7MPa; Dry ultimate compression strength is also lower, about 22MPa.Because too short, effective churning time of material presetting period and flowing time are also shorter, particularly mobile relatively poor, not only caused certain limitation to operation, also be unfavorable for the finishing to obtained mould, especially owing to undercapacity, the work-ing life of mould is also lower.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of existing long effective churning time and flowing time are provided, suitable presetting period and final setting time are arranged again, better mobile, and make product strength high high workability tire casting plaster powder and preparation technology thereof.
The objective of the invention is to be achieved through the following technical solutions:
The present invention's high workability tire casting plaster powder, raw material by following parts by weight is made: 100 parts of α-terra albas, 15～25 parts of white portland cements (preferred 20 parts), 0.5～1.5 part of sulfonated melamine compound resin (preferred 1 part), 1～3 part of peach gum (preferred 2 parts), 5～15 parts in sal epsom (preferred 10 parts).
The preparation technology of the present invention's high workability tire casting plaster powder at first takes by weighing each component raw material by above-mentioned weight proportion, places mixer to mix 20～30min each component raw material then.
In the described starting material: α-terra alba is main raw, white portland cement is toughener, sulfonated melamine compound resin is water reducer, also play toughener and sizing agent effect, peach gum is additive, existing sizing agent effect also has the retardant effect, and sal epsom works to strengthen the terra alba flowability.
Compare with existing α-terra alba, the present invention's high workability tire casting plaster powder, but not only having clear improvement aspect effective churning time flowing time, presetting period and the final setting time, good fluidity, and the intensity of obtained tire casting mould obviously improves, can reach present domestic tire enterprise fully to every technical parameter requirement of tire casting mould, wide accommodation, long service life; In addition, its starting material wide material sources, cheap, low cost of manufacture; Its preparation technology is simple, and easy handling is conducive to suitability for industrialized production.
Embodiment
The invention will be further described below in conjunction with embodiment.
Embodiment 1
The high workability tire casting plaster powder of present embodiment is made by the raw material of following parts by weight: 100 parts of α-terra albas, 15 parts of white portland cements, 0.5 part of sulfonated melamine compound resin, 1 part of peach gum, 5 parts in sal epsom.
Preparation: at first take by weighing each component raw material by above-mentioned weight proportion, then each component raw material is placed mixer mixing 25min.
Embodiment 2
The high workability tire casting plaster powder of present embodiment is made by the raw material of following parts by weight: 100 parts of α-terra albas, 20 parts of white portland cements, 1 part of sulfonated melamine compound resin, 2 parts of peach gums, 10 parts in sal epsom.
Its preparation technology is with embodiment 1.
Embodiment 3
The high workability tire casting plaster powder of present embodiment is made by the raw material of following parts by weight: 100 parts of α-terra albas, 25 parts of white portland cements, 1.5 parts of sulfonated melamine compound resins, 3 parts of peach gums, 15 parts in sal epsom.
Its preparation technology is with embodiment 1.
The using method of the described high workability tire of above-described embodiment 1-3 casting plaster powder:
Be that the ratio of 1:0.5 drops in the water with gained high workability tire casting plaster powder in mass ratio, soak 2min after, vacuum stirring 9min namely can be used for moulding; Mould is repaired after the initial set, treat the mould complete drying after, just can use.
Embodiment 1-3 gained high workability tire casting plaster powder and existing α-terra alba are made mould respectively as stated above, its effective churning time, flowing time, presetting period, final setting time are tested, and to its make the dry folding strength of product, dry ultimate compression strength is tested by QB/T 1640-1992, test result sees Table 1.
Table 1
| ? | Embodiment 1 | Embodiment 2 | Embodiment 3 | Existing α-terra alba |
| Effective churning time (min) | 16min | 20min | 18min | 3min |
| Flowing time (min) | 12min | 14min | 13min | 5min |
| Presetting period (min) | 20min | 25min | 22min | 8min |
| Final setting time (min) | 45min | 50min | 48min | 29min |
| Dry folding strength (MPa) | 10MPa | 12MPa | 11MPa | 7MPa |
| Dry ultimate compression strength (MPa) | 31MPa | 32MPa | 30MPa | 22MPa |
As shown in Table 1, the present invention's pottery strengthens tire casting plaster powder, compares with existing α-terra alba, is not only all having clear improvement aspect effective churning time, flowing time, presetting period and the final setting time, particularly flowing time; Dry folding strength and the dry ultimate compression strength of obtained mould obviously improve, thereby make the flowability of the present invention's pottery enhancing tire casting plaster powder and the intensity of obtained mould have remarkable advantages.
Claims (3)
1. a high workability tire casting plaster powder is characterized in that, is made by the raw material of following parts by weight: 100 parts of α-terra albas, 15～25 parts of white portland cements, 0.5～1.5 part of sulfonated melamine compound resin, 1～3 part of peach gum, 5～15 parts in sal epsom.
2. high workability tire casting plaster powder as claimed in claim 1 is characterized in that, is made by the raw material of following parts by weight: 100 parts of α-terra albas, 20 parts of white portland cements, 1 part of sulfonated melamine compound resin, 2 parts of peach gums, 10 parts in sal epsom.
3. technology for preparing claim 1 or 2 described high workability tire casting plaster powder is characterized in that: at first takes by weighing each component raw material by above-mentioned weight proportion, places mixer to mix 20～30min each component raw material then.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110445982 CN102557564B (en) | 2011-12-28 | 2011-12-28 | High-fluidity tire forming gypsum powder and preparation process thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110445982 CN102557564B (en) | 2011-12-28 | 2011-12-28 | High-fluidity tire forming gypsum powder and preparation process thereof |
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| Publication Number | Publication Date |
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| CN102557564A CN102557564A (en) | 2012-07-11 |
| CN102557564B true CN102557564B (en) | 2013-08-14 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105110750A (en) * | 2015-08-29 | 2015-12-02 | 湖北凯浩鹿宝石膏科技有限公司 | Gypsum for aviation alloy casting mold and preparation method of gypsum |
| CN105254264A (en) * | 2015-09-25 | 2016-01-20 | 钦州学院 | Processing method used for increasing Nixing pottery plaster mold strength |
| CN113666703A (en) * | 2021-08-20 | 2021-11-19 | 河南永泰石膏有限公司 | 3D printing gypsum powder and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1594176A (en) * | 2004-07-01 | 2005-03-16 | 易湘如 | Gypsum powder combined material for master mould |
| CN101432240A (en) * | 2006-04-25 | 2009-05-13 | 禾逊专业化学公司 | Wax emulsions for gypsum products |
-
2011
- 2011-12-28 CN CN 201110445982 patent/CN102557564B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1594176A (en) * | 2004-07-01 | 2005-03-16 | 易湘如 | Gypsum powder combined material for master mould |
| CN101432240A (en) * | 2006-04-25 | 2009-05-13 | 禾逊专业化学公司 | Wax emulsions for gypsum products |
Non-Patent Citations (4)
| Title |
|---|
| 林金辉.石膏基可溶芯实验研究.《热加工工艺》.2008,(第13期),28-30. * |
| 邓苗 * |
| 陈国宝 * |
| 龙剑平 * |
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Effective date of registration: 20160823 Address after: An Industrial Park Economic Development Zone, Changde City, Hunan province Linli County 415200 Patentee after: Hunan Fu Xiang new type building material Co., Ltd. Address before: 410005, 12 floor, Haidong mansion, Furong Road, Changsha, Hunan Patentee before: Liu Liwen |