Page 110 - 《橡塑技术与装备》2025年5期

橡塑技术与装备
HINA R&P TECHNOLOGY AND EQUIPMENT

料的烘干，注塑机的选型，注塑参数的设定等各个环 定的蛛丝马迹，通过这些总结、分析为今后产品开发，
节结合产品特点都要仔细分析，有时候在短期内找到 工艺开发和预防类似问题发生，遇到注塑件开裂从哪
根本原因是比较困难的，但结合一些现象，推测可能， 些方面分析提供借鉴。
然后验证推测，用一些有效的分析方法总归能找到一

Knob cracking cause analysis

Lai Yingzhang
(Lanzhou Changfeng Machinery Factory, Lanzhou 730070, Gansu, China)

Abstract: Cracking of injection molded parts is a common problem in product development and after-
sales processes. Although the cracking phenomenon is obvious, its causes are relatively complex, involving
various stages of the product life cycle, including the type and formula of raw materials, coloring process
and drying method, as well as temperature and time settings. In addition, the structural design of the product
(such as stress concentration caused by sharp corners, uniform wall thickness transition, and reasonable
distribution of reinforcement positions), mold structure (gate form and position, cooling method), ejection
method, injection molding machine model and parameters (screw model and size, temperature, speed,
etc.) may all have an impact on part cracking. To accurately identify key causes from numerous factors,
not only professional knowledge but also scientific methods are required. This article takes the cracking of a
certain product knob as an example, analyzes and verifies it from multiple dimensions mentioned above, and
finally determines the key factors and makes improvements. This process not only solves technical problems
and improves customer satisfaction, but also provides valuable experience and reference for future product
development, material selection, mold design, and process setting.
Key words: injection molding; mold; crack; PBT
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Oysho 和 Fulgar 合作，推出采用再生聚酰胺 66 纱线制成的运动服系列
Oysho and Fulgar collaborate to launch a sportswear series made from recycled polyamide 66 yarn

Inditex 集团旗下的运动服和休闲服品牌 Oysho 与 Fulgar 合作，推出了一款采用 Q-Cycle 纱线制成的全新
环保运动服系列。此次合作标志着运动服在可持续发展方面迈出了重要一步。
该系列采用 Q-Cycle 纱线制成，Q-Cycle 是一种完全由回收原材料制成的聚酰胺 66 纱线。该纱线由废弃或
报废轮胎产生的热解油制成，与原生聚酰胺 66 相比，它提供了一种环保替代品，同时又不影响轻便性、耐用性
或强度。
Q-Cycle 纱线已获 得领先国际组织的 认证， 包括 Textile Exchange 的 RCS、ISCC PLUS、LCA 和 Oeko-
TEX Standard 100 附录 6，确保了可持续性和消费者安全。该材料用途广泛，适用于各种纺织应用，并能够与不
同的纤维很好地混合。
Fulgar 营销经理 Daniela Antunes 表示： “ 我们与 Oysho 的合作是迈向更绿色未来的切实一步。凭借 Q-Cycle
纱线，我们正在证明通过创新可以将废料重新用于高性能纺织品，而不会影响质量或功能。”
摘编自 “PUWORLD”

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