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硅烷改性聚氨酯密封膠對材料的基本性能進行測試
- 發(fā)布時間 : 2026-3-20 17:41:11
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(Summary description)Customized SILICONE STRUCTURAL SEALANT from China manufacturer refers to the adhesive with high strength, can bear large load, aging resistance, fatigue resistance and corrosion resistance, and has stable performance within the expected life. It is suitable for bearing the bonding of strong structural parts. Non structural adhesive has low strength and poor durability. It can only be used for bonding, sealing and fixing of ordinary and temporary properties, and cannot be used for structural adhesive bonding. NEUTRAL SILICONE WETHERPROOF SEALANT from China manufacturer is a structural adhesive with waterproof function. Silicone glue refers to the adhesive based on silicone rubber. According to different functions, it can be divided into structural adhesive, potting adhesive, sealant, thermal conductive adhesive, flame retardant adhesive and so on.
硅烷改性聚氨酯密封膠對材料的基本性能進行測試
(Summary description)Customized SILICONE STRUCTURAL SEALANT from China manufacturer refers to the adhesive with high strength, can bear large load, aging resistance, fatigue resistance and corrosion resistance, and has stable performance within the expected life. It is suitable for bearing the bonding of strong structural parts. Non structural adhesive has low strength and poor durability. It can only be used for bonding, sealing and fixing of ordinary and temporary properties, and cannot be used for structural adhesive bonding. NEUTRAL SILICONE WETHERPROOF SEALANT from China manufacturer is a structural adhesive with waterproof function. Silicone glue refers to the adhesive based on silicone rubber. According to different functions, it can be divided into structural adhesive, potting adhesive, sealant, thermal conductive adhesive, flame retardant adhesive and so on.
- 發(fā)布時間 : 2026-3-20 17:41:11
- Views:
Information
我公司輕客涂裝車間某次在生產(chǎn)東風御風車型時，出現(xiàn)左前車門包邊寬膠膠條批量開裂(如圖所示)，具體表現(xiàn)為:面漆后發(fā)現(xiàn)左前車門貼近輪罩的弧度位置的包邊硅烷改性聚氨酯密封膠寬膠膠條中段出現(xiàn)長度10二左右的裂縫，批次數(shù)量達到95臺，左前車門上其他幾條寬膠膠條無明顯異常;右前車門、側(cè)滑門、機蓋以及后背門的同樣膠型的包邊寬膠膠條無明顯異常，另外，試制中的東風睿立達車型的五門一蓋的包邊位置的寬膠膠條也均無明顯異常。
在輕客涂裝車間作業(yè)現(xiàn)場，對門蓋硅烷改性聚氨酯密封膠涂膠工位進行觀察，發(fā)現(xiàn)輕客車型的機蓋、左右前車、側(cè)滑門以及左右后背門寬膠涂膠的作業(yè)人員均為同一個人。左前車門靠近輪罩弧度位置包邊寬膠膠條開裂缺陷對應位置的涂膠要求為涂寬膠，寬膠膠條兩頭靠近邊角處刮膠處理，確保包邊縫隙涂有硅烷改性聚氨酯密封膠。因此，缺陷位置僅需要進行涂寬膠作業(yè)，作業(yè)內(nèi)容相對簡單，無需進行其他特殊操作。連續(xù)作業(yè)觀察10臺同樣車型，發(fā)現(xiàn)作業(yè)人員嚴格按要求操作。左右前車結(jié)構(gòu)對稱，且僅左前車門固定位置出現(xiàn)包邊寬膠膠條開裂，所有門蓋的其他包邊寬膠膠條并無異常，因此，此問題可以排除涂裝工程涂膠作業(yè)人員技能不足或者不按工藝要求作業(yè)的因素。我公司涂裝車間使用的硅烷改性聚氨酯密封膠生產(chǎn)廠商硅烷改性聚氨酯密封膠產(chǎn)品的型號為TESEAM PSN 29 X3，左前車門靠近輪罩弧度位置包邊寬膠膠條開裂問題出現(xiàn)的時段，對應使用的硅烷改性聚氨酯密封膠生產(chǎn)批次為2024-06-02。
針對該批次的硅烷改性聚氨酯密封膠，對材料的基本性能進行了測試(見表所列)，結(jié)果顯示該批次硅烷改性聚氨酯密封膠基本性能達標，并且對應缺陷出現(xiàn)的位置及車型固定，因此排除因材料性能不佳導致左前車門包邊寬膠出現(xiàn)開裂問題。http://www.cs535.com/
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上一篇: MS密封膠對材料的基本性能測試
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