| Document ID (ISN) | 27713 |
| CIS number |
77-1430 |
| ISSN - Serial title |
Cahiers de notes documentaires - Sécurité et hygiène du travail |
| Year |
1977 |
| Convention or series no. |
|
| Author(s) |
Conrard R. |
| Title |
Cold-box coremaking - Ashland process |
| Original title |
Le noyautage en boîte froide - Procédé Ashland. [in French] |
| Bibliographic information |
2nd quarter 1977, No.87, Note No.1058-87-77, p.195-203. Illus. 15 ref. |
| Abstract |
The Ashland process of bonding sands, which is becoming more widely used, consists in a no-bake method of making a polyurethane by mixing a phenolic resin with a diisocyanate in the presence of a catalyst (triethylamine or dimethylethylamine). This data sheet describes the technology of the process, outlines the advantages offered by this method, examines the hazards involved and considers some safety aspects: risk (which is common to all coremaking techniques) of the operator's hand being caught in the mixer, or fingers being crushed by the press; hazard of sand or catalyst being ejected; fire hazard in storage or handling of dimethylethylamine. Other sections are devoted to occupational health hazards (health impairment due to silica, formaldehyde, triethylamine, dimethylethylamine) and safety rules. |
| Descriptors (primary) |
coremaking; core binders; foundries |
| Descriptors (secondary) |
formaldehyde; ethyldimethylamine; triethylamine; silica; description of technique; health hazards; safe working methods; mechanical hazards; fire hazards |
| Document type |
- |
| Subject(s) |
Metal production and metalworking
|
| Broad subject area(s) |
|
| Browse category(ies) |
Foundries, metalcasting and forging operations
|
