ILO Home
Volver a la página de entrada
Site map | Contact us English | Français
view in a printer-friendly format »

Foundries, metalcasting and forging operations - 469 entradas encontradas

Sus criterios de búsqueda son

  • Foundries, metalcasting and forging operations


CIS 84-1095 Que Hee S.S., Lawrence P., Shane S.
Inhalation exposure of lead in brass foundry workers: the evaluation of the effectiveness of powered air-purifying respirator and engineering controls
Determination of the protection factor provided by a Racal "Airstream AH3 High Efficiency Air-purifying System" (NIOSH/MSHA approved TC-21C-212) to brass foundry workers exposed to Pb, Cu and Zn fumes. Effective protection factors, based on measurement of lead concentrations outside and inside the respirator, ranged from 1.05 to 67. Ergonomic factors and engineering controls are also discussed.
American Industrial Hygiene Association Journal, Oct. 1983, Vol.44, No.10, p.746-751. Illus. 22 ref.

CIS 84-1062 Bovenzi M., Fiorito A., Giansante C., Calabrese S., Negro C.
Platelet function and clotting parameters of vibration-exposed foundry workers
22 workers using pneumatic hammers and portable grinders and 20 control workers not exposed to vibration were studied. No differences were found in platelet aggregation indices between the 2 groups, and clotting parameters were normal in all cases. Cold provocation tests showed that vibration-exposed workers had greater vasoconstriction of digital vessels than the control subjects. In the early stages of vasospastic disorders, segmental vibration can induce peripheral vascular hyperactivity without changes in these physiological parameters.
Scandinavian Journal of Work, Environment and Health, Aug. 1983, Vol.9, No.4, p.347-352. Illus. 19 ref.

CIS 84-1118 Söderberg G., Laring J., Sotkovszki P., Lindberg F.
Flying fragments as accident hazards of forging machines
Splitter som olycksfallsrisk i smidesmaskiner [en sueco]
Study done in connection with the design of protective screens against flying fragments from tools (including guide pins). Suggestions are made for the elimination of the risk where screens cannot be used. Aspects covered: use of guide pins held in the upper or lower die (details on fastening methods); crack formation in dies; detection and measurement of cracks likely to form in drop-forging dies and in guide pins (using ultrasound, induction or magnetic powders).
Arbetarskyddsstyrelsen, Publikationsservice, 17184 Solna, Sweden, 1983. 55p. Illus.

CIS 84-789 Gibson E.S., McCalla D.R., Kaiser-Farrell C., Kerr A.A., Lockington J.N., Hertzman C., Rosenfeld J.M.
Lung cancer in a steel foundry: a search for causation
An Ames assay of particulate mutagenicity was taken at the pouring floor, core room, bench moulding, chip shop and electric furnace areas of a foundry and in the outside air. Mutagenic activity was found in all foundry areas and was substantially higher than in the outside samples. There was considerable variation within sites, but overall activity was highest in the crane area above the pouring floor, intermediate in the moulding area, and lowest in the electric furnace samples. There was a relatively large direct-acting mutagenic component indicating the presence of compounds other than polycyclic aromatic hydrocarbon (PAH) carcinogens, associated with material >7µm in diameter. PAH carcinogen levels may represent only a fraction of total mutagenicity.
Journal of Occupational Medicine, Aug. 1983, Vol.25, No.8, p.573-578. Illus. 21 ref.

CIS 84-844 Sund J.L., King R.R.
Longitudinal wear study of four work shirts in ferrous metal operations; King Country, Washington
4 shirts made of 100% cotton, Firestop cotton, Flampro wool and Nomex III were evaluated for their protective and wear life performance and to determine consumer satisfaction in terms of comfort, protection and acceptibility. Greatest protection, evaluated in terms of the lowest number of potentially harmful burns, was provided by fire-resistant wool and fire-resistant cotton fabrics. Nomex aramid gave less protection and untreated cotton least. Participants rated untreated cotton and Nomex aramid equally as most comfortable. Fire-resistant cotton was rated last.
Fire Technology, Aug. 1983, Vol.19, No.3, p.163-169. 14 ref.

CIS 84-334 Oudiz J., Brown J.W., Ayer H.E., Samuels S.
A report on silica exposure levels in United States foundries
Study based on 1743 personal air samples taken during OSHA surveys at 205 foundries. The results are presented by work areas, job titles, type and size of foundry. Silica dust continues to be a serious health hazard to foundry workers. About 40% of the exposures measured were above the accepted limit. An epidemiological investigation of the industry is suggested in order to establish a correlation between exposure and silicosis.
American Industrial Hygiene Association Journal, May 1983, Vol.44, No.5, p.374-376. 12 ref.

CIS 84-316 Kern U., Lingemann H.F., Schnauber H.
Ergonomic design of tongs for drop forging
Ergonomische Gestaltung von Zangen für die Arbeit in Gesenkschmieden [en alemán]
Remarks on the development of tongs and on accidents in drop forging are followed by an analysis of the process and of the tongs presently used in it. Biomechanical analysis of the manipulation of objects with the tongs (hand position and effort, in particular) produced suggestions for improved tongs: establishment of criteria for design and operation, modified conventional tongs, design and prototype of a novel gripping tool with a solid handle (jaws on one end are operated by a lever on the other end).
Bundesanstalt für Arbeitsschutz und Unfallforschung, Postfach 170202, 4600 Dortmund 17, Federal Republic of Germany, 1983. 62p. Illus. 29 ref. Price: DM.15.00.

CIS 84-237
British Cast Iron Research Association
Notes of guidance: electrical protection for coreless induction furnaces
This data sheet covers earthing, earth leakage and overvoltage protection of coreless furnaces and measurement of lining conditions.
BCIRA, Alvenchurch, Birmingham B48 7QB, United Kingdom, 1983. 1p. 3 ref.

CIS 84-236
British Cast Iron Research Association
Gas explosions in cupolas and how to prevent them
Data sheet on the dangers and prevention of gas explosions during foundry operations. Aspects covered: risk, occurrence (when, how), prevention in conventional cupolas and divided blast cupolas.
BCIRA, Alvenchurch, Birmingham B48 7QB, United Kingdom, 1983. 2p. Illus.

CIS 83-1885 Guide for ventilation practice - 4: Ventilation at foundry knock-out workplaces
Guide pratique de ventilation - 4. Ventilation des postes de décochage en fonderie [en francés]
A document produced by the collaboration of ventilation and chemical safety specialists with trade unions. It is a guide and reference document for the design and operation of installations for the trapping or dilution of pollutants. Contents: review of the process of knocking out castings and of the principles of ventilation in general; design of collecting devices (choice of configuration, dimensions, calculation of capacity); qualitative and quantitative monitoring of a ventilation system (methodology, equipment and timing of monitoring). Examples of calculations from real studies are given. An appendix includes a list of the main pollutants associated with different processes, air flow rates for tumbling barrels, and systems for distributing air flow at openings.
Cahiers de notes documentaires - Sécurité et hygične du travail, 4th quarter 1983, No.113, Note No.1448-113-83, p.463-484. Illus. 19 ref.

CIS 83-1701 Proctor T.D.
Research into equipment for protection against molten-metal splash
An improved gaiter was designed to eliminate problems associated with molten metal entering the top of poorly fitting gaiters, comfort, and fastening efficiency. The gaiter, which was in compliance with standards for foundry footwear, was tested and evaluated and an 80-90% favourable response was reported in use. A draft standard test method for clothing designed to protect against molten metal is also described.
Journal of Occupational Accidents, Jan. 1983, Vol.5, No.1, p.59-74. Illus. 17 ref.

CIS 83-1404 Hartmann A.L., Hartmann W., Bühlmann A.A.
Metal fume fever due to magnesium oxide
Magnesiumoxid als Ursache des Metallrauchfiebers [en alemán]
Review of the epidemiology, pathogenesis and differential diagnosis (in relation to extrinsic allergic alveolitis) of metal fume fever and assessment of working conditions in a foundry in which spheroidal graphite castings were produced using a technique in which the molten steel is inoculated with magnesium. Description of 7 cases of metal fume fever reported in this foundry. Humidifier disease thought to have been due to the cupola furnace cooling water was excluded. Since the introduction of a procedure by which the inoculation is carried out inside an airtight enclosure, no further cases of metal fume fever have been reported.
Schweizerische medizinische Wochenschrift - Journal suisse de médecine, 23 May 1983, Vol.113, No.21, p.766-770. 19 ref.

CIS 83-1268 Richards E., Carr I., Westcott M.
On the prediction of impact noise - V. The noise from drop hammers
The acceleration noise, air ejection noise and ringing noise in drop hammers are reviewed, and values of radiation efficiency are obtained for the various structural elements of drop hammers. The predicted and measured noise radiation from a drop hammer, both in full scale and in 1/3-scale model form, were examined. Overall noise levels (Leq per event) can be predicted from vibration measurements to within ±1.5dB. In turn this has permitted noise reduction techniques to be examined by studies of local component vibration levels rather than overall noise at the design stage. Tup enclosure or modification of the sharpness of the final hard impact are the only means available for any serious noise reduction.
Journal of Sound and Vibration, 8 June 1983, Vol.88, No.3, p.333-367. Illus. 12 ref.


CIS 86-521 Ulmer G.
Fume collection in pressure die casting
Captage des fumées en fonderie sous pression [en francés]
Contents: evaluation of pollution due to the refractory dressings sprayed on the moulds in pressure die casting; study of fume-collecting systems placed as close as possible to the emission source: different kinds of exhaust ventilation and combined forced-exhaust ventilation; fume removal from airstreams is also discussed.
Fonderie, Nov. 1982, No.19, p.17-22. Illus. 4 ref.

CIS 84-1708
British Cast Iron Research Association
Dust respirators
This data sheet describes dust respirators used in foundry work (choice of appropriate type, protection factor offered, maintenance requirements).
BCIRA, Alvenchurch, Birmingham B48 7QB, United Kingdom, 1982. 3p. Illus.

CIS 84-1554
British Cast Iron Research Association
The working environment - measuring airborne dust in foundries
This data sheet describes techniques and equipment for area and personal sampling and for measuring airborne dust concentrations in foundries.
BCIRA, Alvenchurch, Birmingham B48 7QB, United Kingdom, 1982. 2p. Illus. 2 ref.

CIS 84-1547
British Cast Iron Research Association
Air pollution from cleaning and fettling operations
This data sheet provides information on the control of dust from grinding, chipping and shot-blasting operations in foundries.
BCIRA, Alvenchurch, Birmingham B48 7QB, United Kingdom, 1982. 3p. Illus. 11 ref.

CIS 84-1545
British Cast Iron Research Association
Control of dust from portable fettling tools - grinding large castings
This data sheet describes procedures and equipment for reducing dust emissions in foundries during the fettling of large castings by means of hand-held grinding tools.
BCIRA, Alvenchurch, Birmingham B48 7QB, United Kingdom, 1982. 3p. Illus. 7 ref.

CIS 84-1544
British Cast Iron Research Association
Control of dust from portable fettling tools - ventilated fettling benches
This data sheet provides information on various models of ventilated fettling benches.
BCIRA, Alvenchurch, Birmingham B48 7QB, United Kingdom, 1982. 3p. Illus. 5 ref.

CIS 84-1543
British Cast Iron Research Association
Control of dust from portable fettling tools - the Freshold system
This data sheet describes the Freshold dust exhaust system designed by BCIRA. This system can be attached to any portable fettling or grinding tool to extract and collect dust at the source.
BCIRA, Alvenchurch, Birmingham B48 7QB, United Kingdom, 1982. 2p. Illus.

CIS 84-1566
British Cast Iron Research Association
Hearing protectors for foundry personnel
This data sheet provides information on the proper use and choice of various hearing protectors according to specific work situations. A list of British suppliers is also providesd.
BCIRA, Alvenchurch, Birmingham B48 7QB, United Kingdom, 1982. 3p. 6 ref.

CIS 84-817 Falck K.
Application of the bacterial urinary mutagenicity assay in detection of exposure to genotoxic chemicals
This academic dissertation is based on data given in 10 published articles. Studies discussed concerned workers in a hospital oncology unit, the rubber industry, and iron foundries. Nurses preparing cytostatic drugs had mutagenic activity in their urine, which was much lower than in patients receiving the drugs, and which decreased when contermeasures were taken. Workers of both the other groups also had mutagenic activity in their urine. In a separate study, smokers, too, showed urinary mutagenic activity. The final 50 pages of the monograph contain reproductions of the articles reviewed.
Institute of Occupational Health, Haartmaninkatu 1, 00290 Helsinki 29, Finland, 1982. 92p. Illus. 115 ref.

CIS 84-239
British Cast Iron Research Association
Reducing the noise of pattern cleaning
This data sheet covers the techniques for reducing noise from high-pressure air jet nozzles used in cleaning foundry patterns and equipment. Noise reduction is attained by using secondary jets or multiple high velocity jets. Advice on the choice of the most suitable nozzle types is given.
BCIRA, Alvenchurch, Birmingham B48 7QB, United Kingdom, 1982. 2p. Illus. 1 ref.

CIS 83-1431 Verma D.K., Muir D.C.F., Cunliffe S., Julian J.A., Vogt J.H., Rosenfeld J., Chovil A.
Polycyclic aromatic hydrocarbons in Ontario foundry environments
10 foundries were studied, both personal and location air samples being taken. They were analysed by high-performance liquid chromatography and atomic absorption spectrophotometry. High concentrations of 3 carcinogenic groups of polycyclic aromatic hydrocarbons (PAH) had a significant association with poor general ventilation and the winter season. Moulders, casters and cranemen were exposed to a high PAH concentration in the total suspended particulate, but the association was not statistically significant. Airborne metal concentrations were below threshold limits.
Annals of Occupational Hygiene, 1982, Vol.25, No.1, p.17-25. 26 ref.

CIS 83-1238 Ayalp A., Myroniuk D.
Evaluation of occupational exposure to free silica in Alberta foundries
Surveys were used to assess both the degree of health hazard present and the effectiveness of existing control systems for airborne contaminants in 9 ferrous foundries ranging from small, with limited mechanization to large and highly automated. Substitution and ventilation systems were used in attempts to control silica. The foundry processes evaluated were sand preparation, shakeout, dry sand transport and sand moulding. Exposure was evaluated by personal and area samples. Worker exposure was excessively high in the sand preparation, moulding and shakeout areas, and results indicated that most control systems were inadequate. More effective control methods are recommended, e.g. fully enclosed and exhausted mullers, well designed exhaust systems on shakeouts, local exhaust ventilation on transfer points of sand conveying systems.
American Industrial Hygiene Association Journal, Nov. 1982, Vol.43, No.11, p.825-831. Illus. 9 ref.

CIS 83-1140 Baumgärtel I.
Safety measures in the use of chemicals in foundries for moulding and core making
Sicherheitsmassnahmen beim Einsatz chemischer Arbeitsstoffe in Giessereien zur Form- und Kernherstellung [en alemán]
A general summary of the materials used (sands, binders, additives, coatings) followed by a review of the hazards associated with the use of chemicals (especially chemical burns and ignition of vapours). The safety measures recommended apply to the storage of chemicals, supplies at the work station, layout of the work station and design of the operating equipment, use of the substances and worker behaviour. Information on the organisation of first aid and fire-fighting is included.
Sicherheitsingenieur, Feb. 1982, No.2, p.12-18. Illus. 12 ref.

CIS 83-949 Harada N., Matsumoto T., Yamada S., Kobayashi F.
Vibration hazards of chipping-hammer operators in an iron foundry - Part 2. Results of hygienic controls
Follow-up of a study performed in 24 operators in 1975, since when working conditions and therapeutic methods have been improved. Symptoms such as Raynaud's phenomenon, finger numbness and listlessness, irritability, and hearing disorders, showed a tendency to improve, while other complaints did not. In view of the long recovery time (if at all) of sensory and peripheral circulatory functions, the importance of early diagnosis and treatment of vibration hazards is stressed.
Japanese Journal of Industrial Health - Sangyō-Igaku, Jan. 1982, Vol.24, No.1, p.75-84. Illus. 19 ref.

CIS 83-948 Christ
Practical noise abatement in foundries
Noise reduction trials in the moulding and core-making shops (limitations of mufflers); shake-out and transport of castings (use of grey cast iron grids, sound enclosure, wear-resistant rubber covering behind a castings cleaning machine and in a vibrating chute, partial enclosure of a castings transfer station); and cleaning of castings (semi-elastic grinding wheel, sound-absorbing screens) are reported. Decrease of noise stress by reduction of noise emission is discussed.
Noise and Vibration Control, Oct. 1982, Vol.13, No.7, p.304-308. Illus.

CIS 83-255 Bergman P., Broms G., Lindahl P., Wallberg A.
Work at continuous casting plants, maintenance work at rolling mills - A summary of the research and development programme "Working conditions in the steel industry"
Stränggjutningsarbete - Underhĺllsarbete i valsverk - En sammanställning av Arbetsmiljölaboratoriets FoU-program Stĺlindustrins Arbetsmiljö [en sueco]
Summary of research studies on working conditions in the steel industry carried out in Sweden in 1978-1981 dealing with work at continuous casting plants and maintenance work at rolling mills. The studies on continuous casting covered: measures to reduce heat exposure and steel spatter; analysis of accidents and hazardous activities; exhaust ventilation of fume and dust from casting moulds; improvement of working conditions in the relining of cold tundishes. The studies on maintenance and repair work at rolling mills covered: work organisation and occupational hazards in maintenance work at four rolling mills; improvement of the working conditions of maintenance and repair workers by the use of a mobile repair unit.
Arbetsmiljölaboratoriet, Tekniska Högskolan, 100 44 Stockholm, Sweden, 1982. 84p. 15 ref. Illus.

CIS 83-42 Safety requirements for the construction, care and use of permanent-mold casting machines (other than gray iron)
These safety requirements, which were approved as an American national standard on 11 Sept. 1981, lay down safety criteria for the construction, care and use of permanent-mould casting machines (other than those used for grey iron). Sections deal with: design, construction, rebuilding, modification and installation; design and construction of moulds; care and maintenance of permanent-mould casting machines and equiment; and operation (instruction and training of operators, work area, feed tubes, personal protective equipment).
American National Standards Institute, 1430 Broadway, New York, N.Y. 10018, USA, 1982. 8p. Illus.

CIS 82-2043 Occupational health significance of foundry mould materials
Arbeitshygienische Bedeutung der Giesserei-Formstoffe [en alemán]
Proceedings of a seminar in which 2 papers provide an introduction to the occupational health problems and medical supervision of foundry workers (dust, irritant and toxic substances, medical surveillance programme). Other papers deal with the health hazards of auxiliary moulding materials (additives, resins, binders, dressings), the determination of atmospheric gases and fumes in various parts of a foundry, and the problem of carcinogens in the foundry environment.
Arbeitsmedizin - Sozialmedizin - Präventivmedizin, Feb. 1982, Vol.17, No.2, p.38-50.

CIS 82-1950 Malo J.L., Zeiss C.R.
Occupational hypersensitivity pneumonitis after exposure to diphenylmethane diisocyanate
A foundry worker developed dyspnoea and a restrictive breathing defect after exposure to diphenylmethane diisocyanate (MDI). His symptoms and lung function impairment subsided after he left foundry work. Specific inhalation challenges with MDI induced general malaise, a significant increase in body temperature and leukocyte count, and a decrease in forced vital capacity and transfer factor. Total antibody activity to a MDI human serum albumin conjugate was detected by ammonium sulfate precipitation and specific IgG antibodies were demonstrated by the enzyme-linked immunoabsorbent technique.
American Review of Respiratory Disease, Jan. 1982, Vol.125, No.1, p.113-116. Illus. 29 ref.


CIS 95-470
Health and Safety Executive
Peligros de los hábitos
Old habits die hard [en inglés]
Cinta de video sobre los riesgos del trabajo en los talleres de fundición.
CFL Vision, P.O. Box 35, Wetherby LS23 7EX, Reino Unido, 1981. Videocasete. Duración: 32min. Precio: GBP 28,68 (alquiler), GBP 85,10 (venta). ###

CIS 95-469
Health and Safety Executive
Lesionado, pero no atontado
Damaged not daft [en inglés]
Estudio de los riesgos profesionales en la industria de estampación: accidentes graves debidos a riesgos mecánicos y lesiones auditivas ocasionadas por la exposición sin protección adecuada a niveles excesivos de ruido.
CFL Vision, P.O. Box 35, Wetherby LS23 7EX, Reino Unido, 1981. Videocasete. Duración: 24min. Precio: GBP 28,68 (alquiler), GBP 85,10 (venta). ###

CIS 84-1572
British Cast Iron Research Association
Cupola noise and vibration
This data sheet provides information on the causes and sources of noise (90-100 dB(C)) and vibration (30-40Hz) from cupola operations and suggestions on how to reduce them.
BCIRA, Alvenchurch, Birmingham B48 7QB, United Kingdom, 1981. 1p.

CIS 84-1586
British Cast Iron Research Association
Recirculation of cleaned air
This data sheet describes the safety precautions to be taken when recirculation of air is used in the workplace.
BCIRA, Alvenchurch, Birmingham B48 7QB, United Kingdom, 1981. 2p. Illus. 5 ref.

CIS 84-1585
British Cast Iron Research Association
Measuring air flow in ducts and hoods
This data sheet describes equipment and techniques for measuring air flow in ventilation ducts and hoods used in foundries.
BCIRA, Alvenchurch, Birmingham B48 7QB, United Kingdom, 1981. 3p. Illus. 7 ref.

CIS 84-1593
British Cast Iron Research Association
Non-destructive testing of iron castings - radiographic examination
This data sheet provides the procedures for safe non-destructive testing of iron castings in foundries using x-ray or gamma-ray radiographic units.
BCIRA, Alvenchurch, Birmingham B48 7QB, United Kingdom, 1981. 3p. Illus. 2 ref.

CIS 84-321 Ayalp A.
Evaluation of occupational health hazards and control technology for the ferrous foundries in Alberta
Airborne contaminants in 9 ferrous foundries ranging from small with limited mechanisation to large and highly automated were surveyed. The main health hazards were exposure to airborne free silica, metal dust and fumes, gases and vapours as decomposition products, and noise. Lighting measurements were also made. Control and ventilation systems for airborne silica were mostly inadequate. In most job categories excessive exposure to metal dusts and fumes, and to gases and vapours occurred. The effectiveness of different control methods used was evaluated. Effective methods are described.
Workers' Health, Safety and Compensation, Occupational Hygiene Branch, 4th Floor, 10716 Jasper Ave., Edmonton, Alberta, Canada, 1981. 45p. Illus. 11 ref.

CIS 84-238
British Cast Iron Research Associaton
Notes of guidance: electrical safety procedures for electric metal-melting and holding furnaces
This data sheet covers various types of furnaces and power supply systems, British regulations and standards, principles of electrical safety (repair procedures, interlocks, checking of equipment) and their implementation.
BCIRA, Alvenchurch, Birmingham B48 7QB, United Kingdom, 1981. 2p. 8 ref.

CIS 83-1557 Artamonov N.P.
Use of correlation analysis for detecting physiological changes in workers exposed to vibration
Ispol'zovanie korreljacionnogo analiza dlja vyjavlenija priznakov izmenenija funkcional'nogo sostojanija organizma rabočih vibroopasnyh professij [en ruso]
At the beginning and end of a working day, several measurements were taken on 30 casting cleaners in a foundry: surface temperature and threshold of pain of the forearm, palm, and finger; sensitivity to 63- and 125-Hz vibration; strength and endurance of wrist muscles; vascular rheology of the forearm and finger; temporal distribution of pulse waves in the upper third of the forearm and between the forearm and finger. Few of the differences between pre- and post-work values were statistically significant. Of the 76 pairs of values tested, 20 were significantly correlated. The correlation coefficients of 5 pairs of values changed significantly over the workday. Correlation analysis may be a useful tool in detecting the onset and studying the mechanism of vibration disease.
Gigiena truda i professional'nye zabolevanija, Oct. 1981, No.10, p.29-31.

CIS 83-636 Tymański S., Zaborski L., Matuszewski J., Maryn J.
Dust pollution of air in working stations of a Gdańsk shipyard
Dust analyses and measurements were made in the galvanising shop, foundry, metal polishing shop and grinding shop of a shipyard. In the galvanising shop, the dust was considered a serious health hazard, and the gantry crane operators was exposed to levels 2.2 times higher than the maximum allowable concentration. In the foundry, dust levels were 1.5-1.8 times higher than the maximum allowable concentration. Metal polishers were exposed to over 2 times the maximum allowable concentration for dusts with a low free crystalline silica content. In the grinding shop the dust levels were over 4 times higher thann the maximum allowable concentration, and the geometrical means of particle size distribution were in the range 1.32-1.6µm.
Bulletin of the Institute of Maritime and Tropical Medicine in Gdynia, 1981, Vol.32, No.3/4, p.225-234. Illus. 17 ref.

CIS 83-548 Haramina I.
Occupational safety in foundries
Sigurnost na radu pri lijevanju metala [en serbocroata]
Sections of this training manual for foundry workers deal with: power-driven hand tools; safe operation of sand conditioning machinery; lifting and materials handling equipment; moulding and coremaking; melting and casting; cleaning of castings; dust control and exhaust ventilation. A set of test questions is appended.
Zavod za nakladničku djelatnost iz sigurnosti na radu, Kroflinova 34, 41000 Zagreb, Yugoslavia, 1981. 40p. Illus.

CIS 83-73 Schnauber H., Weigelt P.
Vibration in workplaces for standing workers
Schwingungen an Steh-Arbeitsplätzen [en alemán]
Report on the physiological effects of mechanical vibration, on ISO and VDI recommendations and guidelines for vibration measurement, and on studies carried out on forging presses, diesel locomotives, foundry mould-making machines, and coking-plant machinery. There were high levels of vibration exposure. Review of primary and secondary vibration-reduction measures.
Bundesanstalt für Arbeitsschutz und Unfallforschung, Postfach 170202, 4600 Dortmund 17, Federal Republic of Germany, 1981. 134p. Illus. 27 ref. Price: DM.19.50.

CIS 83-250 Berka I.
Effect of atmospheric conditions on microclimate and carbon monoxide concentrations in foundries
Vliv atmosférických podmínek na mikroklima a koncentrace kysličníku uhelnatého ve slévárně [en checo]
Measurement of atmospheric CO concentrations and microclimatic conditions in a modern foundry showed that the mean CO concentration for the whole shift significantly exceeded the maximum allowable concentration. During the warm season, the climatic conditions deteriorate, and the CO concentrations are 4 times higher than the threshold level, increasing on average 50-100% in comparison with the transient period - depending on the atmospheric conditions. It is proposed that the natural ventilation should be supplemented by local exhaust ventilation at the pollution source, and ventilation apertures should be provided to ensure a fresh-air supply to the areas of the foundry distant from the exterior walls. The dynamics of CO concentration fluctuations justify the requirement that measurements be taken regularly for at least 5h per shift.
Pracovní lékařství, Oct. 1981. Vol.33, No.9, p.323-325.

CIS 83-168 Čakrtrová E., Flek J.
Evaluation of furfural exposure by means of biological exposure testing
Hodnocení úrovně expozice furalu biologickými expozičními testy [en checo]
Report of a study carried out in a foundry using resin-bound moulding sand. To determine the level of worker exposure, the level of pyromucic acid (the main metabolite of furfural) was measured in the urine of groups of foundry workers who were followed up and underwent medical examination every 3 months for 2 years. There was combined inhalation and skin absorption of furfural.
Pracovní lékařství, Oct. 1981, Vol.33, No.9, p.316-318. Illus. 7 ref.

CIS 82-1926 Schimberg R.W.
Polycyclic aromatic hydrocarbons in the air of iron foundries: Measurement techniques, exposure, evaluation of biological effects, control
Polycyclische aromatische Kohlenwasserstoffe in Luft von Eisengiessereien: Messverfahren, Belastung, Abschätzung der biologischen Wirksamkeit, Bekämpfungsmöglichkeiten [en alemán]
This PhD thesis studies the emission of mutagenic polycyclic aromatic hydrocarbons from the organic additives in moulding sands in iron foundries, and methods for measurement of atmospheric concentrations and effective levels of exposure. Some 50 polycyclic aromatic hydrocarbons were identified but benzo(a)pyrene was the dominant compound. The emission of these hydrocarbons was closely related to the type of organic additive employed, and coal tar seemed to give the highest emission whilst vegetable-based additives gave the lowest emissions. Exposure levels in foundries with high dust concentrations were found to be relatively marked. Ames-testing was carried out on these hydrocarbons to determine their mutagenicity.
Hochschule Kuopio, Abteilung für technisch-analytische Umwelthygiene, Kuopio, Finland, 1981. 100p. 64 ref. Illus.

CIS 82-1851 Latuškina V.B., Zelenkin S.N.
Improvement of the working conditions in lost-model casting shops
Ozdorovlenie uslovij truda na učastkah lit'ja po vyplavljaemym model'jam [en ruso]
A study of the conditions prevailing in various investment casting shops using fireclays revealed high dust levels which vary according to the raw materials used, the stage of the process and the type of work. Animal experiments showed that the effect of fireclay dust on the respiratory tract is similar to that of aluminium oxide aerosols formed during electric welding and during the processing of artificial corundum (development of diffuse pneumoconiosis). It is recommended not to exceed an exposure level of 6mg kaolin dust per m3. Measures to be taken to improve the conditions of exposure are: substitution of fireclays or other less fibrogenic substances for quartz sand and quartz powder; mechanisation or automation of processes giving rise to dust spread; enclosure of dusty processes; pneumatic conveying systems.
Mašinostroitel', Feb. 1981, No.2, p.24-25.

CIS 82-1744 Safety requirements for melting and pouring of metals in the metalcasting industry
This standard (adopted as an American National Standard 20 Aug. 1981) defines safety requirements for the design, construction, installation, maintenance and operation of the machinery, equipment and facilities used in the melting and pouring of metals in the foundry industry. Sections cover: scope, purpose and application; definitions; construction, reconstruction and modification; care of equipment; safeguards; operation of melting and pouring equipment.
American Foundrymen's Society, Golf and Wolf Roads, Des Plaines, Illinois 60016, USA, 1981. 30p.

CIS 82-1741 Proceedings of the Symposium on occupational health hazard control technology in the foundry and secondary non-ferrous smelting industries
The 23 papers and addresses presented and the discussions at this conference (Chicago, Illinois, USA, 10-12 Dec. 1979), are reproduced. Topics covered include: potential health hazards in the foundry; dust control and reduction in cleaning of castings and during grinding; new technology; safety and health programmes; dust reduction in sand handling; particulates and lead in a brass foundry; noise and vibration controls; nickel and chromium exposure; secondary lead smelters; battery manufacturing.
National Institute for Occupational Safety and Health, 4676 Columbia Parkway, Cincinnati, Ohio 45226, USA, Aug. 1981. 401p. Illus. 64 ref.

CIS 82-1261 Sample re-radiation effects in the quantitative analysis of crystalline silica in foundry samples by infrared spectrophotometry
In the quantitative analysis of crystalline silica in samples of respirable dust from foundries, compounds such as graphite and magnetite act as black body radiators and cause attenuation of the absorption bands of interest in the infrared (IR) spectrum. The use of a 9-µm germanium cut on/blocking filter reduces sample re-radiation effects to such a level that the results from inexpensive IR spectrophotometer are within 10% of those obtained by an asynchronously double-chopped instrument or by x-ray diffraction.
Analyst, Nov. 1981, Vol.106, p.1240-1242. Illus. 19 ref.

< anterior | 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 | siguiente >