CN102531515B - Environment-friendly tyre casting gypsum powder and preparation process thereof - Google Patents
Environment-friendly tyre casting gypsum powder and preparation process thereof Download PDFInfo
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- CN102531515B CN102531515B CN 201110452212 CN201110452212A CN102531515B CN 102531515 B CN102531515 B CN 102531515B CN 201110452212 CN201110452212 CN 201110452212 CN 201110452212 A CN201110452212 A CN 201110452212A CN 102531515 B CN102531515 B CN 102531515B
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- 238000005266 casting Methods 0.000 title claims abstract description 25
- 239000000843 powder Substances 0.000 title claims abstract description 23
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 229910052602 gypsum Inorganic materials 0.000 title abstract description 9
- 239000010440 gypsum Substances 0.000 title abstract description 9
- 239000002994 raw material Substances 0.000 claims abstract description 15
- 239000011398 Portland cement Substances 0.000 claims abstract description 9
- 235000006040 Prunus persica var persica Nutrition 0.000 claims abstract description 9
- 239000000835 fiber Substances 0.000 claims abstract description 9
- 229920005989 resin Polymers 0.000 claims abstract description 9
- 239000011347 resin Substances 0.000 claims abstract description 9
- 239000011505 plaster Substances 0.000 claims description 20
- 244000144730 Amygdalus persica Species 0.000 claims description 8
- -1 sulfonated melamine compound Chemical class 0.000 claims description 8
- 235000013311 vegetables Nutrition 0.000 claims description 8
- 238000005303 weighing Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000003756 stirring Methods 0.000 abstract description 2
- 241000196324 Embryophyta Species 0.000 abstract 1
- 240000006413 Prunus persica var. persica Species 0.000 abstract 1
- WSFSSNUMVMOOMR-UHFFFAOYSA-N formaldehyde Substances O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 9
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 239000003795 chemical substances by application Substances 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
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 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
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
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Abstract
Provided are environment-friendly tyre casting gypsum powder and a preparation process thereof. The gypsum powder is prepared by the following raw materials by weight: 100 parts of alpha gypsum powder, 15-25 parts of white portland cement, 0.5-1.5 parts of sulfonated melamino-formaldehyde resins, 1-3 parts of peach gum and 5-15 parts of plant fibers. The preparation method of the environment-friendly tyre casting gypsum powder is further provided. The environment-friendly tyre casting gypsum powder has long effective stirring time and flowing time and has proper initial setting time and final setting time, and a prepared gypsum mold is high in mold strength, free of environment pollution, wide in application range and long in service life. The preparation process is simple, easy to operate and suitable for industrialized production.
Description
Technical field
The present invention relates to a kind of environment-friendly type 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 5min, flowing time 3～5min, presetting period 8min, final setting time 30min.In addition, utilize the obtained mould of described 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 starting material presetting period and flowing time are also shorter, have not only caused certain limitation to operation, nor be beneficial to the finishing to obtained mould, and owing to undercapacity, greatly reduced the work-ing life of mould.
Technology contents
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, environmentally safe, and strengthen tire casting plaster powder and preparation technology thereof with the high pottery of its casting plaster mould strength of making.
The objective of the invention is to be achieved through the following technical solutions:
The present invention's environment-friendly type tire casting plaster powder 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 on vegetable fibre.
Further, preferred version 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 on vegetable fibre.
The preparation technology of the present invention's environment-friendly type tire casting plaster powder at first takes by weighing each component raw material by described parts by weight, places mixer to mix 20～30min each component raw material then.
Described raw material is nontoxic, free of contamination environment-friendly type raw material, α-terra alba is main raw, white portland cement is toughener, sulfonated melamine compound resin is water reducer, also play toughener or sizing agent effect, peach gum is additive, and existing sizing agent effect has delayed coagulation again, and vegetable fibre is weighting agent.
Compare with existing α-terra alba, the present invention's environment-friendly type tire casting plaster powder, not only having clear improvement aspect effective churning time, flowing time, presetting period and the final setting time, and environmentally safe, the intensity of especially 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 environment-friendly type 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 on vegetable fibre.
Preparation: at first take by weighing each component raw material by described parts by weight, place mixer to mix 20～30min each component raw material then.
Embodiment 2
The environment-friendly type 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 on vegetable fibre.
Its preparation technology is with embodiment 1.
Embodiment 3
The environment-friendly type 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 on vegetable fibre.
Its preparation technology is with embodiment 1.
The using method of the described environment-friendly type tire of described embodiment 1-3 casting plaster powder:
Be that the ratio of 1:0.5 drops in the water with environment-friendly type 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 environment-friendly type tire casting plaster powder and existing α-terra alba are made mould by described method respectively, 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) | 12 | 15 | 11 | 5 |
| Flowing time (min) | 10 | 12 | 11 | 5 |
| Presetting period (min) | 20 | 25 | 22 | 8 |
| Final setting time (min) | 36 | 40 | 38 | 29 |
| Dry folding strength (MPa) | 11 | 12 | 11 | 7 |
| Dry ultimate compression strength (MPa) | 31 | 32 | 31 | 22 |
As shown in Table 1, the present invention's environment-friendly type tire casting plaster powder, compare with existing α-terra alba, not only all having clear improvement aspect effective churning time, flowing time, presetting period and the final setting time, dry folding strength and the dry ultimate compression strength of especially obtained mould obviously improve, thereby make flowability of the present invention and obtained mould have tangible advantage.
Claims (3)
1. an environment-friendly type 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 on vegetable fibre.
2. environment-friendly type tire casting plaster powder according to 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 on vegetable fibre.
3. the preparation method of an environment-friendly type tire casting plaster powder as claimed in claim 1 or 2 is characterized in that: at first takes by weighing each component raw material by described parts by weight, places mixer to mix 20～30min each component raw material then.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110452212 CN102531515B (en) | 2011-12-30 | 2011-12-30 | Environment-friendly tyre casting gypsum powder and preparation process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110452212 CN102531515B (en) | 2011-12-30 | 2011-12-30 | Environment-friendly tyre casting gypsum powder and preparation process thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102531515A CN102531515A (en) | 2012-07-04 |
| CN102531515B true CN102531515B (en) | 2013-08-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110452212 Active CN102531515B (en) | 2011-12-30 | 2011-12-30 | Environment-friendly tyre casting gypsum powder and preparation process thereof |
Country Status (1)
| Country | Link |
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Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1031521C (en) * | 1993-11-22 | 1996-04-10 | 王全祥 | Middle-density gypsum and plant fibre partition board and combined wall body |
| CN1165226A (en) * | 1996-05-10 | 1997-11-19 | 何雨阳 | Light calcareous wall block and its producing method |
| CN101602592A (en) * | 2008-06-13 | 2009-12-16 | 谢明义 | A kind of light-weight face tile for thermal insulating layer on external wall and manufacture method |
| CN101434480B (en) * | 2008-12-06 | 2011-08-10 | 甘肃省建材科研设计院 | Ultralight building material and its producing method |
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| CN102531515A (en) | 2012-07-04 |
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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 |