In injection molded parts, the state of internal stress varies across different regions, and the degree of part deformation is largely determined by the distribution of these stresses. The presence of...
In modern product design, plastic products are playing an increasingly vital role within overall product structures. Injection molded components, in particular, are being widely used not only as struc...
When a product completes production and readies for delivery, it stands at the final gateway before reaching the customer—this is where Outgoing Quality Control (OQC) takes center stage. As the last ...
In the final stage of manufacturing, Finished Quality Control (FQC) serves as the critical "last line of defense" to safeguard product quality before goods enter warehouse storage or reach c...
PQC Inspection Process(1) When there's a mold change or shift change in production, PQC conducts the first article inspection. If it passes, production continues; if not, adjustments are made befo...
When sales staff or warehouse keepers receive the supplier's delivery note, they inform IQC personnel to inspect the incoming materials. IQC follows the sampling plan MIL-STD-105E: For products of...
General tips for using vernier calipers(1) When measuring parts, you need to choose a vernier caliper of appropriate length. Generally, don't use an overly long one to measure short dimensions, as...
Common Inspection Tools1. Vernier CaliperThere are two types: ordinary and digital. Sizes range from 150mm to 1000mm. The digital caliper has an accuracy of 0.01mm, which is pretty high. It's supe...
Implementation Procedures for Attribute Sampling Inspection1. Inspection Procedures2. Specification of Quality Characteristics of Unit ProductsIn product counting standards or purchase contracts, tech...
Considering economic factors, sampling inspection methods are widely used in product quality inspection. Many countries have carried out systematic research on the standardization of sampling inspecti...
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