CN105439522A - Environment-friendly type casting plaster powder and preparation technology thereof - Google Patents
Environment-friendly type casting plaster powder and preparation technology thereof Download PDFInfo
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- CN105439522A CN105439522A CN201410461755.1A CN201410461755A CN105439522A CN 105439522 A CN105439522 A CN 105439522A CN 201410461755 A CN201410461755 A CN 201410461755A CN 105439522 A CN105439522 A CN 105439522A
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Abstract
The invention discloses an environment-friendly type casting plaster powder and a preparation technology thereof. The plaster powder is prepared from the following raw materials in parts by weight: 100 parts of alpha-plaster powder, 15-25 parts of white portland cement, 0.5-1.5 parts of sulfonated melamine-formaldehyde resin, 1-3 parts of peach gum, and 5-15 parts of plant fiber. The invention also comprises a preparation technology for the environment-friendly type casting plaster powder. The environment-friendly type casting plaster powder possesses relatively long effective stirring time and flowing time, and also possesses appropriate initial setting time and final setting time. A prepared cast plaster mold is high in strength, free of pollution to environment, wide in adaptive scope and long in service life. The preparation method for the plaster powder is simple and easy to operate, and is beneficial for industrial production.
Description
Technical field
The present invention relates to a kind of environment-friendly type tire casting gypsum powder and preparation technology thereof.
Background technology
At present, most of tyre casting gypsum die production producer is when making tyre casting gypsum mould, high strength gypsum (α-gypsum) powder is all directly used to be starting material, Mold Making is carried out in mass ratio for 1:0.5 ~ 0.55 mixes with water, because the rare thick degree of gained calcium plaster is higher, its effective churning time only has 5min, flowing time 3 ~ 5min, presetting period 8min, final setting time 30min.In addition, utilize mould obtained by described α-terra alba, the coefficient of expansion is large, is about 0.5; Dry folding strength is low, is about 7MPa; Dry ultimate compression strength is also lower, about 22MPa.Due to starting material presetting period too short, effective churning time and flowing time also shorter, not only cause certain limitation to operation, nor be beneficial to the finishing to obtained mould, and due to undercapacity, greatly reduce the mold use life-span.
Technology contents
The object of the invention is to overcome the deficiencies in the prior art, a kind of existing longer effective churning time and flowing time are provided, there are again suitable presetting period and final setting time, environmentally safe, and by the high ceramic-reinforced tyre casting gypsum powder of its casting plaster mould strength made and preparation technology thereof.
The object of the invention is to be achieved through the following technical solutions:
The environment-friendly type tire casting gypsum powder of the present invention, is made up of the raw material of following parts by weight: α-terra alba 100 parts, white portland cement 15 ~ 25 parts, sulfonated melamine compound resin 0.5 ~ 1.5 part, peach gum 1 ~ 3 part, 5 ~ 15 parts, vegetable fibre.
Further, preferred version parts by weight: α-terra alba 100 parts, white portland cement 20 parts, sulfonated melamine compound resin 1 part, peach gum 2 parts, 10 parts, vegetable fibre.
The preparation technology of the environment-friendly type tire casting gypsum powder of the present invention, first takes each component raw material by described parts by weight, then each component raw material is placed in mixer mixing 20 ~ 30min.
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 toughener or sizing agent effect is played, peach gum is additive, and existing sizing agent effect has delayed coagulation again, and vegetable fibre is weighting agent.
Compared with existing α-terra alba, the environment-friendly type tire casting gypsum powder of the present invention, not only have clear improvement in effective churning time, flowing time, presetting period and final setting time, and environmentally safe, the intensity of especially obtained tire casting mould significantly improves, the every technical parameter requirement of current domestic tire enterprise to tire casting mould can be reached completely, wide accommodation, long service life; In addition, its raw material sources is extensive, cheap, low cost of manufacture; Its preparation technology is simple, and easy handling, is conducive to suitability for industrialized production.
The invention will be further described below in conjunction with embodiment for embodiment.
Embodiment 1
The environment-friendly type tire casting gypsum powder of the present embodiment, is made up of the raw material of following parts by weight: α-terra alba 100 parts, white portland cement 15 parts, sulfonated melamine compound resin 0.5 part, peach gum 1 part, 5 parts, vegetable fibre.
Preparation: first take each component raw material by described parts by weight, is then placed in mixer mixing 20 ~ 30min by each component raw material.
Embodiment 2
The environment-friendly type tire casting gypsum powder of the present embodiment, is made up of the raw material of following parts by weight: α-terra alba 100 parts, white portland cement 20 parts, sulfonated melamine compound resin 1 part, peach gum 2 parts, 10 parts, vegetable fibre.Its preparation technology is with embodiment 1.
Claims (3)
1. an environment-friendly type tire casting gypsum powder, is characterized in that, is made up of the raw material of following parts by weight: α-terra alba 100 parts, white portland cement 15 ~ 25 parts, sulfonated melamine compound resin 0.5 ~ 1.5 part, peach gum 1 ~ 3 part, 5 ~ 15 parts, vegetable fibre.
2. environment-friendly type tire casting gypsum powder according to claim 1, is characterized in that, is made up of the raw material of following parts by weight: α-terra alba 100 parts, white portland cement 20 parts, sulfonated melamine compound resin 1 part, peach gum 2 parts, 10 parts, vegetable fibre.
3. a preparation method for environment-friendly type tire casting gypsum powder as claimed in claim 1 or 2, is characterized in that: first take each component raw material by described parts by weight, then each component raw material is placed in mixer mixing 20 ~ 30min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410461755.1A CN105439522A (en) | 2014-09-12 | 2014-09-12 | Environment-friendly type casting plaster powder and preparation technology thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410461755.1A CN105439522A (en) | 2014-09-12 | 2014-09-12 | Environment-friendly type casting plaster powder and preparation technology thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105439522A true CN105439522A (en) | 2016-03-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410461755.1A Pending CN105439522A (en) | 2014-09-12 | 2014-09-12 | Environment-friendly type casting plaster powder and preparation technology thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105439522A (en) |
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2014
- 2014-09-12 CN CN201410461755.1A patent/CN105439522A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160330 |
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| WD01 | Invention patent application deemed withdrawn after publication |