Number
011-EN
Section
General Section
Use
Sector
Manufacture of fabricated metal products, except machinery and equipment
General manufacturing, e.g. machinery, equipment, vehicles, other transport equipment
Function
Cleaning agent
Process
Lubrication at high energy conditions in metal working operations
Product category
washing ad cleaning products
Application
Metal processing
Abstract
The company produces metal parts by high precision cutting. Manufacturing includes the use of cutting fluids as coolants and lubricants that facilitate the process and the subsequent trimming of parts. Metal parts were then washed / degreased with trichloroethylene. The company installed a water-based cleaning machine to substitute trichloroethylene at the end of each trimming process.
Substituted substances
Trichloroethylene
CAS No. 79-01-6 EC No. 201-167-4 Index No. 602-027-00-9
Chemical group
Organochlorid-Verbindung, halogenierte aliphatische Kohlenwasserstoffe
Classification: hazard statements
H350 May cause cancer
H341 Suspected of causing genetic defects
H336 May cause drowsiness or dizziness
H315 Causes skin irritation
H319 Causes serious eye irritation
H412 Harmful to aquatic life with long lasting effects
Other adverse effects
Der Stoff ist: ein 2A Karzinogen (IARC); neurotoxisch Kat. 4 (Vela et al.) wie der Datenbank der nach SUBSPORT-Kriterien gefährlichen Stoffe zu entnehmen ist.
Reliability of information
Evidence of implementation: there is evidence that the solution was implemented and in use at time of publication
Reason substitution
CMR
other toxic effects
ecotoxicity
physical hazards
Other type of alternative
Water-based cleaning machine. Non-toxic cleaning agent (96% deionised water).
Hazard Assessment
Trichlorethylene is included in the SDSC as a CMR substance. The deionized water fulfills the SUBSPORT criteria.
Description of Substitution
During the manufacture of metal parts raw material is cut in a press. Raw material is covered with a thin layer of lubricant to facilitate the cutting process. In order to smooth the edges caused by cutting, the parts undergo a trimming process in which cutting fluids are used as lubricants/coolants. The subsequent washing and degreasing of parts included the use of trichloroethylene that had to be periodically renovated. As a result trichloroethylene wastes and sludge containing metal powder and oils had to be disposed of by the company. The company’s substitution action included the installation of a cleaning machine at the exit of each deburring device. Description of procedure or technology (including pre-/post-processing) The machines use a water-based, non-toxic cleaning agent (96% de-ionized water). This product can be used as a cleaner and as a lubricant /coolant in deburring processes. This eliminates the use of coolant oils in deburring. The new cleaning machines use a system to separate cutting and deburring fluids from metal powders originated in the deburring process. This extends considerably the life of the cleaning product which is recycled after cleaning to be used as a deburring lubricant. Way of application: e.g. spraying, dipping, open/closed system etc. Risk management measures (technical, organizational and personal) Risk reduction by alternative: Human health: e.g. more/less safety measures e.g. technical/operational/personal protection measures Risk reduction, use of safer products, better compliance with applicable legislation. Risk reduction by alternative: Environment: e.g. waste reduced/increased Risk reduction, cleaner production, recycling of the product and better compliance with applicable legislation.
Case/substitution evaluation
Comments The substitution work completely eliminated the use of halogenated solvents. As a result, it has improved the environmental quality of the company and working conditions without affecting the quality of manufactured products. Advantage or Disadvantage of alternative
Aspect | Advantage/disadvantage to conventional process | ||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Technical requirements | |||||||||||||||||||||||||||||||||||||||||||
Implementation | Elimination of coolant fluids in the deburring process. | ||||||||||||||||||||||||||||||||||||||||||
Operational expenses | Elimination of waste disposal costs. Considerable cost reduction by replacing trichloroethylene and coolants with a new cleaning compound. Costs evaluation:
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etc. |
State of implementation
Full capacity
Date and place of implementation
Spain
Availability ofAlternative
On the market
Producer/Provider
Type of information supplier
Research
Further information
Only in Spanish: http://www.istas.net/risctox/gestion/estructuras/_3500.pdf
Literature dealing with alternative products: http://www.johnnealeltd.co.uk/trikereplacement.html
Type of publication and availability
Freely avaible
Date, reviewed
February 9, 2022