上工真空阀门高真空蝶阀

评测依据

• review_count：1800
• rating_avg：4.5
• brand_reputation：0
• merchant_count：0
• price_range：[800,1999]
• dimension：best_value
• sources：["京东","天猫"]
• time_range：{"from":"2026-06-26 02:02:33","to":"2026-06-26 02:02:33"}
• intros：{"brand_intro":"上工集团成立于1956年，是中国老牌阀门制造企业，总部位于上海。公司拥有60余年真空阀门研发经验，产品覆盖高真空、超高真空领域，广泛应用于航天、科研、电子等行业。上工以严谨的工艺和稳定的质量著称，多次参与国家重大科技项目，是国内真空阀门领域的标杆品牌。","product_intro":"SG-GI-50高真空蝶阀采用铝合金阀体与丁腈橡胶密封，适用于10^-4 Pa至1×10^5 Pa压力范围。手动蜗轮驱动，通径DN50，可实现快速启闭。阀板采用流线型设计，流阻小，适用于真空管路中的流量调节。配备位置指示器，操作直观。常用于真空炉、镀膜机及大型真空系统。","key_specs":["适用压力范围: 10^-4 Pa ~ 1×10^5 Pa","通径: DN50","驱动方式: 手动蜗轮","密封材料: 丁腈橡胶","阀体材质: 铝合金","工作温度: -20°C ~ +120°C"]}
• alt_products：[{"product_name":"上工真空阀门高真空蝶阀","brand":"上工（ShangGong）","model":"SG-GI-50","price":1250}]
• kol_quotes：["\"上工蝶阀在真空炉上用了三年，没出过故障，国货之光。\"——真空设备工程师@老李说真空","\"DN50规格很适合中型系统，价格比进口便宜一半。\"——工业采购顾问@采购达人"]
• scoring_breakdown：[{"source":"word_of_mouth","score":88.5,"weight":0.2,"confidence":0.8,"details":{"source":"word_of_mouth_scores","summary":"用户评价其操作轻便，蜗轮传动精准，适合频繁调节。密封性能良好，在中等真空度下表现稳定。部分用户反映铝合金阀体在腐蚀性环境中需注意防护。整体性价比高，适合工业批量使用。售后响应及时，配件供应充足。","source_count":2}},{"source":"objective","score":81.21561718098414,"weight":0.5,"confidence":0.5,"details":{"rating_avg":4.5,"price":1250,"wom_score":88.5}},{"source":"user_review","score":90,"weight":0.2,"confidence":1,"details":{"rating_avg":4.5,"review_count":1800,"source":"product_reviews_aggregate"}},{"source":"expert","score":82,"weight":0.1,"confidence":0.6,"details":{"kol_count":2,"scored_count":2,"sample":["\"上工蝶阀在真空炉上用了三年，没出过故障，国货之光。\"——真空设备工程师@老李说真空","\"DN50规格很适合中型系统，价格比进口便宜一半。\"——工业采购顾问@采购达人"]}}]
• method_version：v2
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