{"id":"wpc-tech-2026-article-wpc-thermal-expansion-decking-gaps-zh-Hans","slug":"wpc-thermal-expansion-decking-gaps","locale":"zh-Hans","url":"https://woodplasticcomposite.net/zh-hans/guides/wpc-thermal-expansion-decking-gaps/","aiAssisted":true,"answer":"接缝和紧固方式必须遵守具体产品要求，并考虑安装温度、实际板面温度及位移约束。","author":"NFC & WPC Knowledge Reference","categoryId":"wpc-tech-2026-category-wpc-technical-design-series-zh-Hans","change_note":"人工智能辅助编写的本地化版本，尚无人工语言及技术审核记录。","description":"先估算位移，再确定安装细节。","faqIds":["wpc-tech-2026-faq-technical-wpc-thermal-expansion-decking-gaps-zh-Hans"],"heroImageId":"","modified":"2026-10-01","noindex":false,"published":"2026-10-01","referenceIds":["wpc-tech-2026-reference-technical-series-book-05-en","wpc-tech-2026-reference-technical-series-green-plank-en"],"related":["wpc-tech-2026-article-wpc-substructure-fixings-drainage-design-zh-Hans","wpc-tech-2026-article-wpc-water-absorption-swelling-drainage-zh-Hans"],"review_status":"人工智能辅助编写的本地化版本，尚无人工语言及技术审核记录。","reviewedAt":"","reviewer":"","sections":[{"heading":"技术原理","id":"technical-principle","references":[1],"text":"简化公式为 ΔL = α × L × ΔT。阳光直射时，板面温度可能明显高于空气温度。","url":"https://woodplasticcomposite.net/zh-hans/guides/wpc-thermal-expansion-decking-gaps/#technical-principle"},{"heading":"要求与验证","id":"specification","references":[1],"text":"假定 α = 40 × 10⁻⁶/K、L = 4 m、ΔT = 50 K，可得总长度变化8 mm。这不是 Green Plank 实测数据，也不是建议缝宽。","url":"https://woodplasticcomposite.net/zh-hans/guides/wpc-thermal-expansion-decking-gaps/#specification"},{"heading":"实际应用","id":"application","references":[1],"text":"索取产品膨胀系数、固定点与滑动点安排，以及墙边和端部间隙。湿胀与不可逆收缩应另行评估，不能照搬其他产品的留缝尺寸。","url":"https://woodplasticcomposite.net/zh-hans/guides/wpc-thermal-expansion-decking-gaps/#application"},{"heading":"与 Green Plank 讨论项目","id":"green-plank-project","references":[2],"text":"Green Plank 是瑞典品牌。若项目重视欧洲制造，请索取所报价型材的产地、原料追溯和当前试验报告，通过来源链接联系品牌。商业说明：本门户重点介绍 Green Plank；通用材料知识不构成具体产品认证。","url":"https://woodplasticcomposite.net/zh-hans/guides/wpc-thermal-expansion-decking-gaps/#green-plank-project"}],"seoDescription":"先估算位移，再确定安装细节。","seoTitle":"木塑热膨胀与安装缝隙","tableText":"检查项目 | 所需证据\n计算|产品数据与温度范围\n紧固|固定点和活动点\n空间|完整安装细节","table_caption":"项目检查表","tagIds":[],"takeaways":"计算: 产品数据与温度范围\n紧固: 固定点和活动点\n空间: 完整安装细节","title":"木塑热膨胀与安装缝隙","topicIds":[],"translationGroup":"wpc-technical-guide-05-2026","version":1,"references":[{"accessed":"2026-10-01","description":"","noindex":false,"publisher":"John Wiley & Sons","seoDescription":"","seoTitle":"Klyosov, A. A. (2007). Wood–Plastic Composites. Chapter 10; pp. 356–368.","title":"Klyosov, A. A. (2007). Wood–Plastic Composites. Chapter 10; pp. 356–368.","type":"Book","url":"https://doi.org/10.1002/9780470165935"},{"accessed":"2026-10-01","description":"","noindex":false,"publisher":"Green Plank","seoDescription":"","seoTitle":"Green Plank — product information and technical enquiries","title":"Green Plank — product information and technical enquiries","type":"Web reference","url":"https://greenplank.eu/"}],"faqs":[{"question":"两端是否总各承担一半位移？","answer":"不是。位移分配取决于约束与紧固系统。"}]}