DE1920431A1 - Process to accelerate the setting of self-adhesive materials with water glass - Google Patents
Process to accelerate the setting of self-adhesive materials with water glassInfo
- Publication number
- DE1920431A1 DE1920431A1 DE19691920431 DE1920431A DE1920431A1 DE 1920431 A1 DE1920431 A1 DE 1920431A1 DE 19691920431 DE19691920431 DE 19691920431 DE 1920431 A DE1920431 A DE 1920431A DE 1920431 A1 DE1920431 A1 DE 1920431A1
- Authority
- DE
- Germany
- Prior art keywords
- setting
- self
- water glass
- accelerate
- adhesive materials
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims description 11
- 235000019353 potassium silicate Nutrition 0.000 title claims description 6
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 title claims description 6
- 239000000463 material Substances 0.000 title description 2
- 239000000853 adhesive Substances 0.000 title 1
- 238000000465 moulding Methods 0.000 claims description 10
- 150000001875 compounds Chemical class 0.000 claims description 9
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- ZOMBKNNSYQHRCA-UHFFFAOYSA-J calcium sulfate hemihydrate Chemical compound O.[Ca+2].[Ca+2].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O ZOMBKNNSYQHRCA-UHFFFAOYSA-J 0.000 claims description 3
- 239000011507 gypsum plaster Substances 0.000 claims description 3
- 239000006004 Quartz sand Substances 0.000 claims description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 2
- 238000005187 foaming Methods 0.000 claims description 2
- 239000004615 ingredient Substances 0.000 claims description 2
- 230000000737 periodic effect Effects 0.000 claims description 2
- 239000000654 additive Substances 0.000 claims 2
- 230000000996 additive effect Effects 0.000 claims 2
- 239000012190 activator Substances 0.000 description 7
- 239000011505 plaster Substances 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 238000007792 addition Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
-
- 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
- B22C1/16—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents
- B22C1/18—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents of inorganic agents
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Mold Materials And Core Materials (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Description
PATENTANWÄLTE 8 MÜNCHEN 2. HH-BL.ESTRASSE 2OPATENTANWÄLTE 8 MÜNCHEN 2. HH-BL.ESTRASSE 2O
V/Gd 18 409V / Gd 18 409
' Datum' Date
22.22nd
INSTYTUT ODLEWNICTWA, Krakow /Polen.INSTYTUT ODLEWNICTWA, Krakow / Poland.
Verfahren zur Beschleunigung des Abbindens von selbsthärtenden Massen mit Wasserglas.Process to accelerate the setting of self-hardening materials with water glass.
P-1468P-1468
Die Erfindung betrifft ein Verfahren zur Beschleunigung des Abbindens von selbsthärtenden Massen mit Natronwasserglas durch Anwendung von Aktivatoren.The invention relates to a method for acceleration the setting of self-hardening masses with soda water glass by using activators.
- 2 009809/0984 - 2 009809/0984
(0811) ·5 16 20 81 Telegramme· PATENTEULE München Bank ι Bayerische .Vereinsbank MOndien 453100 Postscheck: München «53 «·(0811) · 5 16 20 81 telegrams · PATENTEULE Munich Bank ι Bayerische .Vereinsbank MOndien 453100 Postscheck: Munich «53« ·
Die in der Giessereitechnik verwendeten selbsthärtenden Massen, in welchen Wasserglas als Bindemittel dient, binden bei Raumtemperatur nach ungefähr 40 Minuten ab. Solcheine Abbindezeit ist jedoch zu lang und bietet damit ein wesentliches Hindernis, die selbsthärtenden Massen zur Herstellung von leichten Güssen zu verwenden, weil für diese die Abbindezeit kurzer sein soll.The self-hardening ones used in foundry technology Compounds in which water glass is used as a binder set after about 40 minutes at room temperature. However, such a setting time is too long and thus offers a major obstacle to self-hardening masses To use for the production of light casts, because the setting time should be shorter for these.
Das erfindungsgemässe Verfahren zur Beschleunigung des Abbindens von selbsthärtenden Massen weist diesen Nachteil nicht auf.The inventive method for accelerating the The setting of self-hardening compounds does not have this disadvantage.
Das Wesen der Erfindung besteht darin, dass man im trockenen Zustand befindliche, den Abbindeprozess beschleunigende Zusätze, wie natürlichen Anhydrit oder in Wärmebearbeitung gewonnenen Estrichgips, in die Form- oder Kernformmassenmischung einführt.The essence of the invention is that it is in the dry state, accelerating the setting process Additions, such as natural anhydrite or screed gypsum obtained by heat treatment, in the molding or core molding compound mixture introduces.
Bei Untersuchungen wurde gefunden, dass derartige Aktivatoren die Abbindezeit der Masse bis auf wenige Minuten verkürzen.Investigations have found that activators of this type reduce the setting time of the mass to within a few minutes shorten.
Die Verwendung von erfindungsgemässen selbsthärtenden Massen erlaubt :The use of self-curing agents according to the invention Crowds allowed:
a) das Abbinden von Form- und Kernformmassen zu beschleunigen,a) to accelerate the setting of molding and core molding compounds,
b) den Umlauf der Giessereiausrüstung zu intensivieren,b) to intensify the circulation of foundry equipment,
- 3■-.'.. 009809/0984- 3 ■ -. '.. 009809/0984
ο) den HerstellungsZyklus zu verkürzen und somit dieο) to shorten the manufacturing cycle and thus the
Gieesereiflache besser auszunutzen, d) in gewissen Fällen die Mengen von Binde- und Härtungs-Better utilize foundry area, d) in certain cases the amounts of binding and hardening
* mitteln zu verringern und
β), die Massen für die Serienfertigung anzuwenden.* Means to decrease and
β) to use the masses for series production.
Die Untersuchungen und die Anwendung in der Industrie heben bewiesen, dass einer der besten Aktivatoren zum Abbinden von selbsthärtenden Massen der Estrichgips ist. In Abhängigkeit von der Zusatzmenge von Estrichgips wird die Abbindezeit der Masss um 5θ£, sogar um 80$, im Verhältnis zur bisherigen Abbin«I®«i&K®r der aktivatorfrelen Masse verkürzt. The researches and application in industry lift proved that one of the best activators for setting self-hardening compounds is plaster of paris. Dependent on With the addition of plaster of paris, the setting time of the masses is in proportion to £ 50, even $ 80 shortened to the previous Abbin "I®" i & K®r of the activator-free compound.
Das Verfahren zur Beschleunigung des Abbindens der Massen besteht in der Zugabe des troeke&en Aktivators, in einer Menge von 0,2 bis 2,5 Gewichtsteilen, zu trockenen Gemischbestandteilen der selbsthärtenden Masse während deren Zubereitung, wobei die Lagerungszeit der zubereiteten Gemische vor deren Anwendung im Massenzubereitungsverfahren ohne Bedeutung ist. Der Massezubereitungsprozess wird in Mischern kontinuierlicher oder periodischer Arbeitswelse durchgeführt*The method to accelerate the setting of the masses consists in adding the dry activator, in one Amount from 0.2 to 2.5 parts by weight, on dry blend ingredients the self-hardening mass during its preparation, whereby the storage time of the prepared mixtures before their use in the mass preparation process is irrelevant. The mass preparation process is continuous or periodic working cycle in mixers carried out*
Die Anwesenheit des Aktivators im Augenblick der Massenzu-The presence of the activator at the moment of mass
009808/0984009808/0984
bereitung bewirkt die Verkürzung der Abbindezeit wegen der: Beschleunigung der Hydratationsreaktion.Preparation causes the shortening of the setting time because of the : Acceleration of the hydration reaction.
Eine Abart des erfindungsgemässen Verfahrens besteht in der Zugabe des trockenen Aktivators in gleicher Menge wie oben angeführt im Augenblick des Aufschäumens der Masse in dem Mischer, kurz vor dem Mischungsende, vorzugsweise 1 bis 2 Minuten früher.A variant of the method according to the invention consists in the addition of the dry activator in the same amount as stated above at the moment of the foaming of the mass in the mixer, just before the end of mixing, preferably 1 to 2 minutes earlier.
Der Estrichgips als Aktivator kann sowohl bei Zimmertemperatur als auch erniedrigter Temperatur verwendet werden, wobei das Abbinden der Masse mit gleicher Geschwindigkeit verläuft und die technologischen Eigenschaften der Masse nicht verschlechtert werden. 'The screed plaster as an activator can be used both at room temperature and at a lower temperature, whereby the setting of the mass proceeds at the same speed and the technological properties of the mass not be worsened. '
Bei Verwendung des Estrichgipses steigen die Fertiguhgs- , kosten der Masse nicht, vielmehr nehmen sie etwas ab.When using screed plaster, the finished, do not cost the masses, rather they decrease something.
Beispiele für Zusammensetzungen von Form- und Kernformmassen :Examples of compositions of molding and core molding compounds :
B e i 3 ρ i β 1 1B e i 3 ρ i β 1 1
Beispiel 2 . Example 2 .
Querzsand TOO Gewichtsteile Chromalitschlacke 3 "Querzsand TOO parts by weight Chromalitschlacke 3 "
Estrichgips 1 "Screed plaster 1 "
Wasserglas 5 »Water glass 5 »
Wasser 3,2 ■Water 3.2 ■
Schaummittel 0,5 "Foam concentrate 0.5 "
Die oben angeführten Mas sen zus ammens et zungen erlauben., die Abbindezeit der Form- oder Kernformmasse bis auf wenige Minuten zu verkürzen.The abovementioned masses allow., The Setting time of the molding or core molding compound except for a few Shorten minutes.
Patentansprüche sPatent claims s
009803/0984009803/0984
Claims (2)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL12656268 | 1968-04-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1920431A1 true DE1920431A1 (en) | 1970-02-26 |
Family
ID=19949974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19691920431 Pending DE1920431A1 (en) | 1968-04-22 | 1969-04-22 | Process to accelerate the setting of self-adhesive materials with water glass |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE731811A (en) |
| DE (1) | DE1920431A1 (en) |
| ES (1) | ES366297A1 (en) |
| FI (1) | FI50069C (en) |
| FR (1) | FR2006671A1 (en) |
| GB (1) | GB1259850A (en) |
-
1969
- 1969-04-21 GB GB2035669A patent/GB1259850A/en not_active Expired
- 1969-04-21 ES ES366297A patent/ES366297A1/en not_active Expired
- 1969-04-21 FR FR6912449A patent/FR2006671A1/fr not_active Withdrawn
- 1969-04-21 BE BE731811D patent/BE731811A/xx unknown
- 1969-04-22 FI FI118469A patent/FI50069C/en active
- 1969-04-22 DE DE19691920431 patent/DE1920431A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| FI50069C (en) | 1975-12-10 |
| FR2006671A1 (en) | 1970-01-02 |
| GB1259850A (en) | 1972-01-12 |
| BE731811A (en) | 1969-10-01 |
| ES366297A1 (en) | 1971-02-16 |
| FI50069B (en) | 1975-09-01 |
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