Connected
Process

Proposals

The optimiser computes the number inside the signed window; the agent explains it. People with the right accept, adjust in band or decline.
Process agent·Line B·Press P3·Hold pressure 720 to 760 bar·12:50StayNeeds a decisionexpires in 2 h

Raise hold pressure from 720 to 760 bar

Short shots rose on cavity 2 over the last three shift runs while melt temperature held steady. Higher hold pressure closed the gap in 6 of the 8 best runs.

EV-B-2201EV-B-2207EV-B-2214
Expected result
EstimatedScrap rate2.8 %90% interval 2.4 to 3.3
Spec 0 to 4 % (dashed). Driven by Cavity 2 pressure trend, Part weight on cavity 2, Tool temperature.
Why this confidence
Method
Optimiser opt 2.4.1; band from the model of the machine; weakest input estimated
Model fit
Accepted, four checks passed
Safety filter
Passed: Inside narrowed band 640 to 820 bar; Clamp force margin over 12%
Evidence
EV-B-2201, EV-B-2207, EV-B-2214
Limits
Hold pressure720 barto 760 bar
600640 to 820 narrowed860
Signed by Plant head A. · 20 SeptStamped narrowingNowProposed
If stoppedStop keeps 760 bar and writes nothing new. The next value waits for a person.
NoticedProposedWaitingstayMeasuringVerdictHolding
Process agent·Line A·Mixer M1·Agitator speed 150 to 158 rpm·13:20StayNeeds a decisionexpires in 3 h

Raise agitator speed from 150 to 158 rpm

Torque at the end of the hold step is 6% above the grade's best batches, which tracks with high viscosity in the last four batches.

EV-A-1188EV-A-1191
Expected result
ModelledViscosity2490 mPa·s90% interval 2430 to 2560
Spec 2380 to 2600 mPa·s (dashed). Driven by End-of-hold torque, Charge mass, Jacket inlet temperature.
Why this confidence
Method
Optimiser opt 2.4.1; band from the model of the machine; weakest input modelled
Model fit
Accepted, four checks passed
Safety filter
Passed: Inside narrowed band 130 to 170 rpm; Seal temperature margin held
Evidence
EV-A-1188, EV-A-1191
Limits
Agitator speed150 rpmto 158 rpm
120130 to 170 narrowed180
Signed by Plant head A. · 9 SeptStamped narrowingNowProposed
If stoppedStop keeps 158 rpm for this batch and writes nothing new.
NoticedProposedWaitingstayMeasuringVerdictHolding
Process agent·Line B·Press P3·Melt temperature 236 to 239 °C·12:00StayNeeds a decisionexpires in 1 h

Raise melt temperature from 236 to 239 °C

Resin lot R-77 dries slower; part weight on the first 200 parts sat at the low edge.

EV-B-2190
Expected result
EstimatedPart weight48.2 g90% interval 47.9 to 48.5
Spec 47.6 to 48.8 g (dashed). Driven by Dew point, Resin lot.
Why this confidence
Method
Optimiser opt 2.4.1; band from the model of the machine; weakest input estimated
Model fit
Accepted, four checks passed
Safety filter
Passed: Inside signed band 225 to 248 °C
Evidence
EV-B-2190
Limits
Melt temperature236 °Cto 239 °C
225248
Signed by Plant head A. · 20 SeptNowProposed
If stoppedStop keeps 239 °C and writes nothing new.
NoticedProposedWaitingstayMeasuringVerdictHolding

All proposals, 14 days

10 on record
All proposals
ProposalSettingStateModeWeakestRaised
Hold pressure 720 to 760 barHold pressureLine B · 720 to 760WaitingStayEstimated20 Oct 12:50
Agitator speed 150 to 158 rpmAgitator speedLine A · 150 to 158WaitingStayModelled20 Oct 13:20
Melt temperature 236 to 239 °CMelt temperatureLine B · 236 to 239WaitingStayEstimated20 Oct 12:00
Hold temperature 84 to 86 °CHold temperatureLine A · 84 to 86Running trialTrialModelled14 Oct 14:00
Cycle time 34.1 to 33.2 sCycle timeLine B · 34.1 to 33.2MeasuringStayMeasured19 Oct 14:00
Hold time 55 to 50 minHold timeLine A · 55 to 50WithheldStayModelled18 Oct 14:00
Melt temperature 236 to 232 °CMelt temperatureLine B · 236 to 232DeclinedStayEstimated16 Oct 14:00
Agitator speed 150 to 144 rpmAgitator speedLine A · 150 to 144ExpiredStayModelled15 Oct 14:00
Hold pressure 700 to 720 barHold pressureLine B · 700 to 720HoldingStayMeasured8 Oct 14:00
Hold temperature 84 to 88 °CHold temperatureLine A · 84 to 88WithheldRecommend-onlyAssumed20 Oct 08:00

Running and measuring

Written values and what Stop does
Hold temperature 86 °CStop restores the checked prior value, 84 °C, from the next batch. If restore fails the line goes recommend-only.Running trialCycle time 33.2 sStop keeps 33.2 s and writes nothing new.MeasuringHold pressure 720 barStop keeps the value and writes nothing new.Holding

Why not

Declined, expired and withheld
Hold time 55 to 50Predicted band crosses the upper specWithheldMelt temperature 236 to 232Shift lead A.: New resin lot on the line; not changing two things at once.DeclinedAgitator speed 150 to 144Nobody decided before it expiredExpiredHold temperature 84 to 88Model fit not accepted, no number offeredWithheld