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Record W2527951441 · doi:10.1177/0021955x15592069

Estimation of the foaming temperature of mold-opening foam injection molding process

2015· article· en· W2527951441 on OpenAlex
Raymond K. M. Chu, Lun Howe Mark, Davoud Jahani, Chul B. Park

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

VenueJournal of Cellular Plastics · 2015
Typearticle
Languageen
FieldMaterials Science
TopicPolymer Foaming and Composites
Canadian institutionsUniversity of Toronto
Fundersnot available
KeywordsMoldMaterials scienceExothermic reactionMolding (decorative)Composite materialIsothermal processDifferential scanning calorimetryTransfer moldingCrystallizationProcess (computing)PolymerThermodynamicsComputer science

Abstract

fetched live from OpenAlex

In recent years, the mold-opening foam injection molding technology has received great attention as a breakthrough technology for the production of low density and open-cell foams of three-dimensional geometries. Despite the earlier studies, there has been little investigation on the control of the foaming temperature of this foam manufacturing process. To help understand the mechanisms behind this technology, this paper presents a numerical approach to simulate the cooling of the polymer/gas mixture inside the mold cavity, and thereby, estimating the foaming temperature of this manufacturing process. The temperature of the material inside the mold cavity prior to the mold-opening foam expansion process was mathematically modeled and resolved using finite difference approximation. Iteration considerations to the exothermic crystallization phenomenon for semi-crystalline polymers were also presented with reference to the non-isothermal crystallization characteristics from the differential scanning calorimetry (DSC) analysis. The numerically simulated results were shown to agree with the results obtained from a set of mold-opening foam injection molding experiments.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.001
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: Bench or experimental
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.041
Threshold uncertainty score0.245

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.012
GPT teacher head0.236
Teacher spread0.223 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it