PL199B1

PL199B1 - Core oil for foundry and the method of its production.

Info

Publication number: PL199B1
Application number: PL199A
Authority: PL
Filing date: 1919-08-14
Publication date: 1924-06-28

Description

Wynalazek dotyczy oleju rdzenio¬ wego do form dla odlewów i do spo¬ sobu wyrabiania tegoz.Jako olej rdzeniowy uzywano dotych¬ czas do jader z piasku w odlewniach z do¬ brym skutkiem wylacznie oleju lnianego.Zamiast oleju lnianego mozna rów¬ niez, jak sie okazalo, z tym samym dob¬ rym skutkiem uzywac smól tluszczowych, których zmieszanie z piaskiem odpowied¬ nio sie umozliwia.Zmieszanie umozliwia sie przez roz¬ puszczenie w odpowiednim srodku roz¬ puszczajacym lub emulgowanie, lub tez przez zwykle mieszanie z odpowiedniemi materjalami.Przytem uzywac mozna olejów mine¬ ralnych lub dziegciowych jako srodka roz¬ puszczajacego, wzglednie emulgujacego.Zadanie powyzsze spelniaja równiez in¬ ne odpowiednie materjaly, o ile tylko wywolac moga odpowiednia spoistosc w smolach tluszczowych. Mieszaninie wzglednie rozczynowi dodac mozna zy¬ wicy, oleju zywicznego oraz substancyj zywicznych, np. zywic Kumaron. W pew¬ nych warunkach zaleca sie takze do¬ mieszka srodków emulgujacych lub ta¬ kich srodków, które na zdolnosc emulsji dodatnio wplywaja.Przyklad. 1. 50 kg smoly stearynowej rozpu¬ szcza sie w 50 kg oleju gazowego. Roz- czyn ten miesza sie procentowo wedle zyczenia z piaskiem, nastepnie postepu¬ je sie tak samo, jak z olejem lnianym. 2. 30 kg smoly stearynowej i 25 kg ciagliwej zywicy Kumaron rozpuszcza sie w 50 kg oleju dziegciowego. PLThe invention relates to core oil for casting molds and a method of producing the same. The core oil has hitherto been used for sand nuclei in foundries with good effect only linseed oil. Instead of linseed oil, it can also be used as It has proved to be very effective to use fatty tars, the mixing of which with sand is suitably made possible. Mixing is made possible by dissolving in a suitable dissolving or emulsifying agent, or by usually mixing with suitable materials. Mineral or tar oils can be used as a dissolving or emulsifying agent. Other suitable materials also fulfill the above task, as long as they can provide adequate cohesiveness in fatty tars. Resin, resin oil and resin substances, for example, Kumaron gum, can be added to the mixture or the solution. Under certain conditions, admixtures of emulsifying agents or such agents which positively influence the emulsion ability are also recommended. 1. 50 kg of stearic tar are dissolved in 50 kg of gas oil. This liquor is mixed with sand in percent as desired, then the same is done as with linseed oil. 2. 30 kg of stearate tar and 25 kg of Kumaron hard resin is dissolved in 50 kg of tar oil. PL

Claims

Patent claims. 1. Core oil for foundry purposes, characterized in that it consists of fatty tars which are suitable for mixing with sand.

2. Core oil according to claim The composition of the invention is characterized by a dilution, mixture or emulsion of fatty tar with tar or mineral oils.

3. Core oil according to claim 1 and 2, characterized by the simultaneous addition of resin, resin oil or resin materials.

4. Method of producing core oil under Claim According to any of the claims 1 to 3, fatty tars are dissolved in tar oils, mineral oils or any other suitable agent, or that they are emulsified or mixed with the addition of resin, resin oil or resin materials.

5. Type of implementation of the method according to claim The mixture according to claim 3, characterized by the fact that 4, emulsion agents are added, or agents that positively affect the emulsion ability. KOZIANSKI ZLGRAFES IN WARSAW PL