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車用粘接/丁基防水嵌縫膠的施工禁忌
- 發(fā)布時間 : 2024-9-30 11:25:58
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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.
車用粘接/丁基防水嵌縫膠的施工禁忌
(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 : 2024-9-30 11:25:58
- Views:
隨著科技的發(fā)展,一些新材料、新技術不斷涌現(xiàn),要不斷探索和使用新的材料和技術。歷史地看,新材料、新技術的應用,往往會帶來高效率、高可靠性和低成本等。例如,單組分濕固化PU粘接/丁基防水嵌縫膠替代橡膠條用于汽車玻璃裝配,就是玻璃裝配技術的一場革命。
安全環(huán)保原則
由于車輛不同于一般的靜態(tài)商品,在選用粘接/丁基防水嵌縫膠時,要充分考慮車輛行駛工況。由于地理環(huán)境的變化,車輛又會經(jīng)受嚴峻的氣候考驗,所以粘接/丁基防水嵌縫膠應能滿足其長期服役環(huán)境下的要求。
只注重粘接/丁基防水嵌縫膠的自身特性,忽視了施工的要求。由于粘接、丁基防水嵌縫膠的化學基料有所不同,被粘接密封的材料也多種多樣,再好的丁基防水嵌縫膠也應結(jié)合基材進行選擇和試驗。必要時應選擇處理劑,確保粘接可靠。
只顧生產(chǎn)線要求,忽視了材料特性。汽車生產(chǎn)線均存在生產(chǎn)節(jié)拍的問題,每個工位壓縮1 min就有可能增加數(shù)百臺車的產(chǎn)量。但粘接/密封材料應用在汽車上往往需要一定的反應固化時間,否則達不到良好的效果。例如:單組分PU的固化時間較慢,一般每24 h固化3-5mm,且其固化劑是水分,如果在較短的時間內(nèi)進行淋雨試驗,一方面會因膠固化未達到一定的厚度,將粘接/丁基防水嵌縫膠沖壞;另一方面可因膠在固化過程中接觸到大量的水,反應速度加快,容易使丁基防水嵌縫膠的致密性變差,產(chǎn)生氣泡,強度和密封性降低。http://www.caffertyclinic.com/
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