DE1917918A1 - Process for the production of liquid, self-adhesive, organic binder-containing preparations - Google Patents
Process for the production of liquid, self-adhesive, organic binder-containing preparationsInfo
- Publication number
- DE1917918A1 DE1917918A1 DE19691917918 DE1917918A DE1917918A1 DE 1917918 A1 DE1917918 A1 DE 1917918A1 DE 19691917918 DE19691917918 DE 19691917918 DE 1917918 A DE1917918 A DE 1917918A DE 1917918 A1 DE1917918 A1 DE 1917918A1
- Authority
- DE
- Germany
- Prior art keywords
- liquid
- self
- preparations
- production
- adhesive
- 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
- 238000002360 preparation method Methods 0.000 title claims description 15
- 238000000034 method Methods 0.000 title claims description 12
- 239000007788 liquid Substances 0.000 title claims description 10
- 239000011230 binding agent Substances 0.000 title claims description 9
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 239000000853 adhesive Substances 0.000 title 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 229920005989 resin Polymers 0.000 claims description 4
- 239000011347 resin Substances 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims description 2
- 150000007513 acids Chemical class 0.000 claims description 2
- 239000001110 calcium chloride Substances 0.000 claims description 2
- 229910001628 calcium chloride Inorganic materials 0.000 claims description 2
- 239000010440 gypsum Substances 0.000 claims description 2
- 229910052602 gypsum Inorganic materials 0.000 claims description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 4
- 238000005266 casting Methods 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 2
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Inorganic materials [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 2
- 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 description 2
- 239000003599 detergent Substances 0.000 description 2
- 239000011507 gypsum plaster Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000006004 Quartz sand Substances 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 235000013877 carbamide Nutrition 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 230000007704 transition Effects 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
- B22C1/20—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 organic agents
- B22C1/22—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 organic agents of resins or rosins
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Mold Materials And Core Materials (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Description
PATENTANWÄLTE 8 MÜNCHEN 2. H1LBLESTRASSE 2OPATENTANWÄLTE 8 MÜNCHEN 2. H1LBLESTRASSE 2O
Unser ZeichenOur sign
IV/sn 18 373IV / sn 18 373
Datumdate
8. April 1969April 8, 1969
Instytut Odlewnictwa, Krakow ul. Zakopianska 73» PolenInstytut Odlewnictwa, Krakow ul. Zakopianska 73 »Poland
"Verfahren zur Herstellung von flüssigen, selbsthärtenden, organische Bindemittel enthaltenden"Process for the production of liquid, self-hardening, containing organic binders
Zubereitungen"Preparations "
Die Erfindung betrifft ein Verfahren zur Herstellung flüssiger, selbsthärtender, organische Bindemittel enthaltender Zubereitungen. Bei den verwendeten Bindemitteln handelt es sich umThe invention relates to a method for producing liquid, self-curing preparations containing organic binders. The binders used are
909844/1274909844/1274
Carbamidharze oder Carbamidfurfürylharze mit schaumbildenden Detergentien und mit den Härtungsprozess steuernden Mitteln.Carbamide resins or Carbamidfurfürylharze with foam-forming Detergents and agents controlling the hardening process.
In der Gießerei-Industrie waren bisher flüssige, selbsthärtende Zubereitungen mit Wasserglaszusätzen bekannt. Derartige Zubereitungen sind wegen ihrer tiefen Sintertemperatur schwer auszuhärten, und die Zubereitungen haben das Bestreben mit der Gußform oder dem Formkern zu verkleben.In the foundry industry, liquid, self-hardening preparations with water glass additives were previously known. Such Preparations are difficult to harden because of their low sintering temperature, and the preparations tend to do so to glue with the mold or the mold core.
Versuche, synthetische Harzbinder zu verwenden, erbrachten geringe technologische und Widerstand-Eigenschaften sowie zu lange Härtungszelten; diese Mängel beruhten auf einem Wassergehalt von einigen wenigen Prozenten, welche erforderlich sind, um die Zubereitung flüssig zu halten.Attempts to use synthetic resin binders yielded poor technological and drag properties as well too long hardening tents; these deficiencies were due to a water content of a few percent which is required to keep the preparation liquid.
Beim Verfahren gemäß Erfindung kommen selbsthärtende, wasserbindende Mittel zur Herstellung von Zubereitungen der in Rede stehenden Art in Anwendung, wobei eine beträchtliche Beschleunigung des Härtungsprozesses erzielt wird; durch das Verfahren * gemäß Erfindung wird die Festigkeit der Gußformen und -kerne erhöht.In the method according to the invention, self-curing, water-binding ones come Means for making preparations of the talked about standing type in use, whereby a considerable acceleration of the hardening process is achieved; through the procedure * According to the invention, the strength of the molds and cores elevated.
Als Ergebnis zahlreicher Untersuchungen wurde ein Verfahren zur Herstellung flüssiger, selbsthärtender Zubereitungen mit geringer Haftneigung an Gußformen und -kernen und geeigneterAs a result of numerous investigations, a process for the production of liquid, self-hardening preparations with low tendency to stick to casting molds and cores and more suitable
909844/1274909844/1274
Pluidltät entwickelt, bei dem die Härtungszeit entsprechend der jeweiligen Herstellungsbedingungen in einen großen Bereich gesteuert werden kann. Dies wird erreicht durch den Zusatz schwacher Säuren, z.B. Phosphorsäure und wasserbindender Mittel vorzugsweise Gips, Calciumchlorid oder dergleichen. Pluidltät developed in which the hardening time accordingly the respective manufacturing conditions can be controlled in a wide range. This is achieved through the Addition of weak acids, e.g. phosphoric acid and water-binding agents, preferably gypsum, calcium chloride or the like.
Beim Mischen der Komponenten der Zubereitung mit einem Detergenz und Wasser wird eine Änderung der Oberflächenspannung erzielt, wodurch ein flüssiger Übergangszustand der Zubereitung erzielt wird. Darüberhinaus verursacht die Zugabe der Säure die Polymerisation des Harzes unter Freigabe von den Härtungsprozess verzögerndem Wasser.When mixing the components of the preparation with a detergent and water there is a change in surface tension achieved, creating a liquid transition state of the Preparation is achieved. In addition, the addition of the acid causes the resin to polymerize with release from the water that retards the hardening process.
Die angemessene Menge an zugegebenem Entwässerungsnetz bindet eine ausreichende Menge Wasser, wodurch die Härtungszeit im Zeitraum zwischen 20 und weniger als einer Stunde gesteuert werden kann.The appropriate amount of drainage net added binds a sufficient amount of water, reducing the hardening time in a period of between 20 and less than an hour can be controlled.
Das Verfahren gemäß der Erfindung wird durch das folgende praktische Beispiel erläutert:The method according to the invention is illustrated by the following practical example:
In einem periodisch arbeitenden Mischer wurde Quarzsand mit Gips im Mischungsverhältnis 1 kg"Gips zu 100 kg Sand gemischtQuartz sand was mixed with plaster of paris in a mixing ratio of 1 kg of plaster of paris to 100 kg of sand in a mixer that worked periodically
9098ΑΛ/12749098ΑΛ / 1274
Diese Mischung wurde ein bis zwei Minuten gemischt«, Sodann wurde das Harz in einer Menge von 3 kg mit 3 kg Wasser unä 500 g Schäuraungsmittel zugegeben.This mixture was mixed for a minute or two, ”Then was the resin in an amount of 3 kg with 3 kg of water and the like 500 g of shear agent added.
Diese Mischung wurde gemischt bis der flüssige Zustand erhalten wurde. Sodann wurden βΟΟ g Phosphorsäure zugegeben. Danach wurde eine weitere Minute gemischt. Die Zubereitung wurde in Gußkästen, bzw. -formen gegossen.This mixture was mixed until the liquid state was obtained. Then βΟΟ g of phosphoric acid were added. Mixing was then continued for an additional minute. The preparation was poured into casting boxes or molds.
Nach einer halben Stunde konnte der Kern, bzw. die Form
vom Gußstück entfernt werden.After half an hour, the core or the shape
removed from the casting.
Bei dem Verfahren gemäß Erfindung kann die Mischung durch einen kontinuierlich arbeitenden Mischer durchgeführt werden. Es ist ebenso möglich, die flüssigen Komponenten in . bereits gemischtem Zustand in der zweiten Stufe zuzufügen.In the method according to the invention, the mixing can be carried out by a continuous mixer. It is also possible to put the liquid components in. to be added to the already mixed state in the second stage.
Die Dosierung, Reihenfolge, Mischungszeit und der prozentuale Anteil der Komponenten kann den jeweiligen Herstellungsbedingungen angepasst werden.The dosage, order, mixing time and the percentage The proportion of components can be adapted to the respective manufacturing conditions.
Patentansprüche:Patent claims:
90 984A/127490 984A / 1274
Claims (2)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL126291A PL65498B1 (en) | 1968-04-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1917918A1 true DE1917918A1 (en) | 1969-10-30 |
Family
ID=19949952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19691917918 Pending DE1917918A1 (en) | 1968-04-08 | 1969-04-08 | Process for the production of liquid, self-adhesive, organic binder-containing preparations |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE731183A (en) |
| DE (1) | DE1917918A1 (en) |
| ES (1) | ES365690A1 (en) |
| FR (1) | FR2005779A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105108043A (en) * | 2015-09-09 | 2015-12-02 | 重庆大学 | Phosphate adhesive sand as well as preparation method and using method thereof |
-
1969
- 1969-04-07 ES ES365690A patent/ES365690A1/en not_active Expired
- 1969-04-08 DE DE19691917918 patent/DE1917918A1/en active Pending
- 1969-04-08 FR FR6910654A patent/FR2005779A1/en not_active Withdrawn
- 1969-04-08 BE BE731183D patent/BE731183A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| BE731183A (en) | 1969-09-15 |
| FR2005779A1 (en) | 1969-12-19 |
| ES365690A1 (en) | 1971-04-16 |
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