Introduction: The EV Revolution Raises the Bar Hi, I’m Barry Zeng, a manufacturing engineer at Shanghai Yunyan Prototype & Mould Manufacture Factory. Over the past five years, I’ve seen the electric vehicle (EV) industry transform injection molding requirements. Traditional Automotive…
Introduction: The Evolution of Rotational Mold Materials Hi, I’m Barry Zeng, a manufacturing engineer at Shanghai Yunyan Prototype & Mould Manufacture Factory. Over the past decade, I’ve designed and built hundreds of Rotational Molds — from large water tanks to…
Introduction: Understanding the Heart of Rotational Molding Hi, I’m Barry Zeng, a manufacturing engineer at Shanghai Yunyan Prototype & Mould Manufacture Factory. Over the years, I’ve designed and built many Rotational Molding Molds for clients across various industries, ranging from…
Introduction: The “Invisible Battleground” of Mold Performance In stamping mold manufacturing, material selection directly determines mold life, product quality, and production cost. A set of stamping mold made of inferior steel may fail after only 10,000 strokes, while one made…
Introduction: The Pain of a Prematurely Failed Mold An automotive parts company once owned a precision injection mold worth ¥800,000, with a design life of 1 million cycles. In reality, after only 350,000 parts, severe rusting, guide pillar seizure, and…
Chapter 1: First Love — That “Iron Block” Girlfriend In the spring of 2016, I stood at the entrance of the mold workshop, my heart racing with anxiety. My master, Old Li, patted me on the shoulder: “From today on,…