Page 94 - 《橡塑技术与装备》2024年3期

橡塑技术与装备 CHINA RUBBER/PLASTICS TECHNOLOGY AND EQUIPMENT

for blade quality and cost. Reducing blade weight while ensuring blade quality has become an important
direction for cost reduction and efficiency improvement in the blade industry in recent years. The foam
core materials of the web plate and shell contour plate are slotted and perforated in different ways, and
the adhesive absorption, density and shear properties of the cured foam core materials are calculated and
tested. Research has found that increasing the spacing between cross grooves and holes, as well as using
straight grooves, can effectively reduce the adhesive absorption and density of the core material. The shear
performance of the core material in the G13 direction meets the requirements; The shear performance of
the straight groove contour plate in the G23 direction is weak; The belly plate is mainly affected by lattice
reinforced columns; The density of the 40 mm × 40 mm double-sided cross shallow groove and perforated
sample after adhesive absorption is the lowest, and the weight loss is the highest; The shell contour plate
is subjected to lattice reinforcement and the interaction between the plate lattice structure; The shear
performance of the sample with a cross groove spacing of 40 mm×40 mm and a hole spacing of 20 mm×20
mm meets the requirements, and the weight reduction effect is good.
Key words: wind turbine blades; foam core material; slotting and punching; shear performance;
lightweight
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炭黑价格大跌 40% 还要继续跌
Carbon black prices have plummeted by 40% and will continue to decline

据外媒报道 ：尽管 2023 年 11 月欧洲炭黑价格略有上涨，但由于需求连续第 8 个月疲软，欧洲市场 2023 年
末至今年年初，继续保持看跌态势。
在欧洲市场，炭黑的交易价格每吨约为 850 美元 ；市场报价显示，12 月底的一周内价格下降了 2%，而 12
月份全月累计下跌约 5%，与 2023 年初相比迄今下降了 40%。
产能方面，欧洲的炭黑通常依赖于进口，随着禁止从俄罗斯进口炭黑和弹性体的禁令全面生效，欧洲将增加
新的产能，并将从 2024 年年中开始投产。
随着俄罗斯持续通过 “ 影子油轮 ” 以及转运等方式大量出口，11 月欧洲炭黑市场保持稳定，增量需求被供过
于求所抵消。
对欧洲炭黑市场作进一步动态分析表明，下游轮胎市场仍然低迷，尤其是替换胎市场。据一位市场参与者透露，
目前北欧，特别是鹿特丹港、汉堡港和安特卫普港，由于河流航运受到抑制，供应链中断，导致炭黑的大宗采购
活动被迫推迟，尤其是从阿联酋的采购。
国内市场方面，根据监测的数据显示，截至目前，国内 N220 炭黑市场价格在 8 633 元 /t，相较于 2023 年 1
月份 12 050 元 /t 的价格高点，一年来，下滑幅度接近 30%。
据行业机构预测，后市来看，高温煤焦油市场行情或持续弱势，对炭黑成本面支撑不佳 ；厂家对炭黑原料采
购积极性不佳，入市拿货仅维持刚需，市场交投氛围较为冷清。下游终端轮胎行业在市场不景气的情况下，入市
拿货多维持刚需，预计短期炭黑弱势盘整运行。
编自 “ 聚胶 ”
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