DD228820A1 - METHOD FOR PRODUCING PORE-FREE FLAKES OF COMPONENTS - Google Patents

Abstract

The invention relates to a method for the production of non-porous surfaces of components, preferably in prefabricated sites of the construction industry. The object of the invention is to make the production of the components rational and cost-effective and to reduce the finishing costs of the surface treatment. The object of the invention is, by a single treatment of a shaping device with a release agent consisting of 89-94.5 Ma .-% of a mixture of mineral oils, amine salts and alkali soaps of various fatty acids, chlorine, sulfur and phosphorus-containing agents, ionic and nonionic emulsifiers, preferably using regrinds of spent production aids 5-10% by weight of water 0.5-1.0% by weight of a mixture of carbohydrates, preferably pentoses and hexoses, and the reaction products of signin, preferably polymers of koniferyl, sinapine - And o-Hydroxyzimtalkohol, with sulfuric acid in a proportion of 50-70%, as it grows in sulfite liquors in pulp production, to achieve non-porous surfaces of components.

Description

-2- 705

utilizable results using regenerated mineral oil-based production aids, such as those present in split oils of old emulsions or old cutting oils, in conjunction with glycose, lignosulfonic acid. The agent according to the invention enables an excellent separation of the shaping device from the building material, the achievement of non-porous surfaces, does not form residues on the shaping device and does not require any additional measures for the lubrication of the moving parts and for corrosion protection.

The use of the release agent efolgen in one operation without technical or technological changes in the manufacturing process. The structural parameters of the concrete are not changed compared to previous starting conditions.

embodiments

BeispieM

Process for the production of non-porous components with the process parameters

- building material: concrete, BK 25

- Application method: Spray gun with a pressure of 350 kPa

- Order quantity: 0.1 l / m ²

- temperature of the separation form: 5O ⁰ C

- Type of compaction: vibratory compaction

Curing condition: Hardening during the heat treatment using a release agent in the viscosity of 50-80 mm ² / s at 20 ⁰ C, consisting of 60 wt .-% Schneidölregenerat 36 Ma .-% Spaltölregenerat 4 wt .-% sulfite waste liquor (25 Ma .-% dry matter)

Result: good release effect, non-porous surface Example 2 Process for the production of non-porous components with the process parameters

- Building material: concrete BK 30

^ - Application method: High-pressure syringe with a pressure of 16000 kPa - Application rate: 0.05 l / m ²

Temperature of the separation form: 4O ⁰ C

- Type of compaction: skidding compaction

Curing condition: Hardening during the heat treatment using a release agent in the viscosity range of 50-80 mm ² / s at 20 ⁰ C, consisting of:

50% by weight cutting oil regenerate 47% by weight split oil regenerate

3% by mass sulphite waste liquor (25% by weight dry substance) Result: good release effect, non-porous surface Example! 3 Process for the production of non-porous components with the process parameters:

- building material: gypsum

- Application procedure: Delete

- Order quantity: 0.1 l / m ²

- Temperature of Trehnform: 20 ⁰ C

- Type of compaction: vibratory compaction

- Curing condition: setting at room temperature

using a release agent in the viscosity of 50-80 mm ² / s at 20 ⁰ C, consisting of:

30% by weight of cutting oyster generator -

30% w / w of water-immiscible production aids based on mineral oil containing chlorine, phosphorus and sulfur

Active ingredient additives 20% by weight split oil regenerate 16% by weight water-miscible production materials based on mineral oil containing chlorine, phosphorus and sulfur

Additives of active ingredients and ionogenic and nonionic emulsifiers 4% by weight of sulphite albumin (25% by weight of dry matter) Result: good release effect, nonporous surface

Claims (2)

- ι - 705 Invention claim: 1. A process for the preparation of non-porous surfaces of components using a mineral oil-based release agent in the viscosity of 50-80 mm ² / s at 20 ⁰ C, by brushing or spraying with an injection pressure before. 350-16000 kPa aur the forming device is applied from steel, wood or plastic materials, characterized in that a release agent consisting of 89-94.5% by weight of a mixture of mineral oils, amine salts and alkali soaps of various fatty acids, chlorine-, sulfur- and phosphorus-containing active substances, ionogenic and nonionic emulsifiers, preferably using regrinds of spent production auxiliaries 5-10% by weight of water 0.5-1.0 Ma. % of a mixture of carbohydrates, preferably pentoses and hexoses, and the reaction product of signin, preferably polymers of koniferyl, sinapin and o-hydroxy-cinnamalcone, with sulfurous acid in a proportion of 50-70% as produced in pulp liquor liquors accrues. is used. 2. A process for producing pore-free surfaces of components according to item 1, characterized in that for the preparation of the release agent as a mineral oil component Regenerate of spent and refurbished cutting oils and reclaimed split oils and up to 50% of the regenerates by non-water-miscible production aids on the basis ^ s of mineral oil containing chlorine, phosphorus and sulfur. Substitute additives and water-miscible carmaking-based production aids are replaced by mineral oil containing chlorine-, phosphorus- and sulfur-containing active substance additives and ionogenic emulsifiers, Field of application of the invention The invention relates to a release agent for the production of non-porous surfaces of components. The middle of the invention! <snn preferably be used in the molding of building materials for prefabricated components. However, it can also be used for various other molding processes. Characteristic of the known technical solutions It is known that to reduce the Entschalkräfte in the manufacture of components various Trennmitte! be used. The previously known release agents are limited in their essential function on the Trenneff ect zwiscper the shaping device made of steel, wood or plastic material and the building material. A release agent, which produces, in addition to the parting line, nonporous surfaces in one operation, is not yet known. The common release agents based on high molecular weight oils have the advantage that they d next to the Trer.neffekt ^; e Protect steel molds against corrosion and ensure a required lubricating effect for moving moldings. A major disadvantage of this release agent is far that through these oils disturbances in the Setonsichtf pool in the form of Pc rs ¹ "and voids increase in number. If non-pore-free or aesthetic reasons require a pore-free component surface, then this has hitherto been possible with intermediate or subsequent operations, such as, for example, puttying, felting or the like, or by the worshiper Wasserplastifizierung previously also non-porous concrete viewing surfaces were produced. In this case, by spraying the release agent, a hydrophobic film layer is achieved, which in a downstream process - :; Water is sprayed over. Through this resulting "water pearl carpet" is plastified during the compaction process, the mold adjacent concrete layer. Nachtsiiic Here it is that release agents must be used, the residue formation leads to severe contamination of the forming parts and sufficient lubrication effect on moving moldings is guaranteed and additional operations and facilities are required. It is also known that improvements in concrete surfaces are achieved by the use of wax-containing release agents (see also DE OS 29 25 4SS). However, all waxy release agents, whether emulsions or solutions adhere to the disadvantages. that wax residue 3 · ~ Form hiking, deposit and also lead, after reaching a certain strength to Fehisteilen in cer Bauteiioberfläche. Wax release agents do not protect against corrosion and have no lubricating effect, which is economic and ekonomiser--: However, reasons are necessary. Zie (the invention Purpose of this invention is to provide a process for producing non-porous silt surfaces which does not require smoothing-off coating for common wet-type coatings; past cost is substantially reduced and added; Measures for lubrication and corrosion protection of the forming device are not necessary to be developed. Explanation of the essence of the invention The invention has for its object reasons, in a single operation by use of a .geeigneten agent the release effect between moldings and building material and the achievement of a pore-free. Surface without additional Maßnai- "for the lubrication of the movable Teiie and the corrosion protection of the shaping device are required. According to the invention the object is achieved in that in the manufacture of components by syringes, pranks' ¹ or spraying a release agent consisting of 89-94.5 Ma. % of a mixture of mineral oils, amine salts and alkali soaps of various fatty acids, chlorine, sulfur and phosphorus-containing active ingredients, ionogenic and nonionic emulsifiers, preferably. Use of regrinds of spent production auxiliaries, 5-10 Ma. -% water, 0.5-1.0 Ma. % of a mixture of carbohydrates, preferably Psntcsen and hexoses and the reaction products of Signin, preferably polymers from Konlfery! Sinapine and o-HycroAyzimtai. ^ P., With sucrose acid in an amount of 50-70 %, as obtained in sulphite waste liquor, in pulp production. In addition to the expected separation effect, non-porous surfaces could be achieved. The reason for this si a reduction of the: ~ Materials existing cohesion forces by the action of the zuceführten in the manufacturing process compression energy while ^p lastifizierung the boundary surface of the building material to ^f ormgebenden means wöbe: the pores of tar interface in the interior of the Saustoffes contained are displaced. Surprisingly, it has been found that this is technically and economically