TPM方法.ppt

TPM方法
TPM
RELIABILITY INDICATOR = MTBF (mean time between failure)
It is the average duration in minutes during which the machine or the installation functioned without any stoppages.
The stoppages are:
- machine breakdowns
- breakdowns related to tools
- breakdowns related to the product
- stoppages for change-overs (used or broken)
- stoppages for frequent adjustments
- stoppages for inspection (SPC sampling)
- stoppages for maintenance Stoppages for tool change-overs are not taken into account
TPM
BREAKDOWNS AND MICRO-STOPPAGES:
BREAKDOWNS
Stoppages >= 5mins
Not often
Systematically noted
Stoppage affects the entire working group
Intervention of an expert
Research necessary before start-up
Identifiable causes
MICRO-STOPPAGES
Stoppages < 5mins
Often
Not noted
Little or no perception by the group
Easy start-up without elimination of the cause (suppression of the effect)
Non identified causes
Little motivation to eliminate them because little perceived impact on production
Strongly involve the operators and automatic installation people for tasks without Added Value
TPM
DATA COLLECTIONS
BREAKDOWN RECORDS OF THE LAST 6 MONTHS
PRODUCTION NOTEBOOKS
OPERATOR EXPERIENCE
THE DATE OF THE LAST TECHNICAL MODIFICATION DONE ON ONE PART OF THE MACHINE
Pareto of unsolved breakdowns of the last 12 months
Eliminate from this database the solved breakdowns
Priority is to solve breakdowns that represent the highest stoppages
Repetitive breakdowns must be highlighted
breakdown1
breakdown2
breakdown3
breakdown4
breakdown5
breakdown6
TPM : Breakdowns
Pareto analysis of breakdowns
TPM: BREAKDOWNS
TREATMENT METHODOLOGY
Register the anomalies (including the breakdowns)
Carry out the repairs
Define the actions to avoid recurrence
Confirm the cause
Steering: Supervisor
Execution: Maintenance Prof. / Workshop Technician
Method: Management of operations and spare parts
Steering: Supervisor
Execution: Maintenance Prof.