Jerry Zou is a CKMOLD technical content contributor and project contact. His editorial scope covers injection mold manufacturing, plastic-part design for manufacturability, material selection, tooling cost, mold trials, production handoff and troubleshooting for international product and sourcing teams.
Editorial responsibility
Jerry’s articles are intended to help product engineers, procurement managers and hardware teams define the information needed before a molding or tooling decision. Technical ranges are presented as starting points and should be checked against the exact resin grade, part geometry, mold, machine and end-use requirements.
Topics covered
- Injection-molded part DFM and CAD release requirements
- Injection mold design, trials, validation and transfer
- Plastic material selection and processing constraints
- Tooling budgets, RFQ preparation and supplier evaluation
- Defect diagnosis and production handoff controls
Evidence and disclosure approach
Regulatory, safety and material-performance claims should be linked to primary sources where available. Hypothetical calculations and illustrative engineering scenarios are labeled as such. No unnamed customer result, reviewer credential or project performance claim should be treated as verified evidence.
Company information
For verified company details, certificate scope and project responsibilities, see About CKMOLD. To discuss a part, use the project review form; CAD files can be emailed directly to jerry@ckmold.com.
Articles by Jerry Zou
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Injection Mold Locating Ring Sizes: Standards, Fit and Buyer Checks
Learn about injection mold locating ring sizes, standard dimensions, machine fit, nozzle alignment, installation checks and mold base requirements.
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High-Performance Polymer Selection for Molded Plastic Parts
A practical guide to high-performance polymer selection for molded plastic parts, covering heat, chemicals, wear, cost, tolerance and validation.
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PTFE Alternatives for Injection Molding: PFA, FEP and ETFE Compared
Compare PTFE alternatives for injection molding, including PFA, FEP and ETFE, with guidance on chemical resistance, temperature, cost and processability.
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Modified PTFE: Fillers, Performance Gains and Design Trade-Offs
Understand modified PTFE materials, including glass, carbon, bronze and graphite fillers, plus wear, creep, strength, processing and design trade-offs.
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PTFE in Critical Applications: Where the Material Makes Engineering Sense
Learn where PTFE performs best in critical applications, including chemical resistance, low friction, sealing, insulation, temperature and manufacturing limits.
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PTFE Manufacturing Methods: Why Standard Injection Molding Is Rare
Compare PTFE manufacturing methods beyond injection molding, including compression molding, ram extrusion, sintering, machining and fluoropolymer alternatives.
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PTFE vs Fluoropolymers: Material Selection for Plastic Parts
Compare PTFE vs fluoropolymers such as PFA, FEP and ETFE, including processing methods, chemical resistance, temperature, cost and molding limits.
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Plastic Recycling Codes for Manufacturers: Material and Molding Reality
A practical guide to plastic recycling codes for manufacturers, covering resin identification, recycled content, molding limits, quality risk and buyer claims.
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Mold Base Interface Control: Alignment, Support and Machine Fit
Review an injection mold base as a controlled structural and machine interface covering alignment, support, ejection, cooling, clamping, handling and maintenance.
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Mold Base Cost Economics: When Cheaper Tooling Becomes Expensive
Learn how mold base cost affects injection mold economics, including cheap tooling risks, mold life, maintenance, downtime and production quality.
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Specialized Mold Bases for Medical and Electronics Plastic Parts
Understand when medical and electronics plastic parts need specialized mold bases, including precision, cleanliness, inserts, slides, cooling and validation.
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Mold Base Maintenance: Extending Injection Mold Life in Production
Learn how mold base maintenance extends injection mold life through cleaning, lubrication, waterline care, wear checks, records and repair planning.