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EVIDENCE BEFORE PRODUCTION OR TOOL RELEASE
Injection Mold Testing and Validation
Mold trials are controlled engineering events. T0, T1 and later trials should answer different questions about tool operation, filling, cooling, ejection, appearance, dimensions, assembly and function. Repeating the same test without a written decision does not move the project forward.
CKMOLD defines the trial basis, records process information, separates samples by cavity where required, and issues the evidence agreed for approval, correction or the next trial. Full PPAP, FAI, moldflow or customer-specific packages are provided only when included in project scope.
- Pre-trial tool and material checks
- T0/T1 objectives and process records
- Approve, correct or schedule the next trial
T0
Tool operation and major technical issues
T1
Corrected samples for structured evaluation
Cavity ID
Samples and variation kept traceable
Decision
Approve, correct, investigate or retrial
Reviewed by CKMOLD project engineering • Last updated August 2026
TRIAL PURPOSE
T0, T1 and T2 Are Decision Stages—not Universal Guarantees
T0
The first technical trial checks that the mold can be installed and operated safely, and identifies major fill, action, venting, cooling, ejection or steel problems.
- May use an exploratory process
- Focus on tool function and major risk
- Creates correction list for next stage
T1
After approved corrections, T1 aims for a more stable process and samples suitable for agreed dimensional, appearance, assembly and functional review.
- Revised mold/part basis identified
- Cavity samples labeled
- Reports issued by agreed scope
T2 or Later
Additional trials address unresolved corrections, tighter approval, customer process requests or final export-tool release. The name matters less than the written objective.
- Close remaining action items
- Confirm repeatability or destination needs
- Approve next trial, production or shipment
PRE-TRIAL CHECK
Verify the Basis Before Material Enters the Barrel
Tool Readiness
Assembly, fasteners, actions, ejection, cooling circuits, hot runner/electrics, lubrication and visible damage checked before installation.
Machine Match
Clamp, shot, plasticizing, mold envelope, tie bars, nozzle, locating ring, ejector, daylight and utility interfaces confirmed.
Material Condition
Exact resin/grade, lot needs, drying, colorant, regrind policy and available quantity confirmed for the trial objective.
Sample Plan
Quantity, cavity separation, conditioning, retention and shipping method defined before parts are mixed or discarded.
Inspection Basis
Drawing revision, critical dimensions, appearance zones, assembly/functional tests and report format available to the trial team.
Open Questions
List the specific tooling or process issues the trial must resolve so observations become decisions rather than unstructured commentary.
PROCESS RECORD
Record the Conditions That Make the Sample Meaningful
A sample has limited value without the context in which it was produced. The trial record identifies the press, resin, drying, mold revision, cavity, temperatures, fill/pack/cooling settings and observations appropriate to the project. Photos or video document mold motion and visible results when included.
These settings are not guaranteed to transfer unchanged to another press. For export molds, they provide a transparent starting point for the receiving molder, who must develop the process on its own equipment and utilities.
- Press and mold identity
- Resin grade, color and drying condition
- Key process settings and cycle observations
- Cavity-labeled sample and issue references
SAMPLE EVALUATION
Move From Observation to Disposition
01
Appearance
Review short shot, flash, sink, weld, burn, splay, gloss, color, texture and witness marks against agreed zones.
02
Dimensions
Measure the scoped critical features after the agreed conditioning time and identify results by cavity where applicable.
03
Assembly
Check mating parts, fasteners, snaps, seals and stack-up with the approved fixtures or counterpart components.
04
Function
Perform the project-defined test; do not infer product qualification from appearance or dimensions alone.
05
Disposition
Approve, correct, investigate or retrial with owner, revision and required evidence for the next gate.
REPORTING SCOPE
Standard Trial Evidence Versus Customer-Specific Qualification
Project Trial Package
Typically defined around trial photos/notes, process reference, labeled samples and selected dimensional or appearance checks.
- Scope stated in quotation
- Report depth matched to risk
- Supports next correction or approval decision
FAI / PPAP / Custom Package
May require customer formats, sample quantities, capability data, material/certification records, gage information or process studies that must be planned and quoted.
- Not automatically included
- Requirements provided before trial
- Customer approval authority remains defined
EXPORT MOLD RELEASE
Additional Questions Before the Tool Leaves China
Destination Fit
Reconfirm machine and utility interfaces, hot-runner/controller details and handling before final acceptance.
Release Condition
Close agreed corrections, record tool function, retain final samples and verify documents, spares and identification.
Transfer Basis
Provide trial parameters as a starting reference and identify the limitations of running the mold on different equipment.
Mold Testing and Validation Questions
Not automatically. T1 usually means the first structured sample stage after initial corrections, but approval depends on the project’s appearance, dimensional, assembly, functional and documentation requirements.
Yes when included in scope. The drawing revision, dimensions, sample conditioning, cavity identity, report format and measurement method should be agreed before the trial.
No. These packages vary by customer and may require additional samples, studies and forms. Provide the requirements at RFQ so the validation plan and price include them.
No. Simulation can support gate, flow, pressure, weld, cooling or warp decisions, but the physical mold and material still require trial and inspection. Moldflow is separately scoped when justified.
CKMOLD identifies whether the issue is tool, part design, material, process, measurement or assembly-related; proposes a correction or investigation; records approval; and schedules the next trial with a new objective.
Define the Evidence Required Before You Schedule the Trial
Send the mold and part revision, resin, destination press, open issues, critical dimensions, appearance and functional requirements, cavity/sample plan and any customer report format.