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硅橡膠加熱器長期閑置橡膠材質(zhì)需要做哪些保護(hù)措施?
發(fā)布時間: 2025/8/18
【關(guān)閉窗口】
硅橡膠加熱器(由硅橡膠基材與電熱元件復(fù)合而成)長期閑置時,其硅橡膠材質(zhì)易因環(huán)境因素(如光照、溫度、濕度、化學(xué)腐蝕)出現(xiàn)老化、硬化、開裂等問題,需針對性采取保護(hù)措施,確保再次使用時的絕緣性、柔韌性和加熱性能。以下是具體保護(hù)措施:
一、清潔預(yù)處理:去除表面污染物
閑置前需徹底清潔硅橡膠表面,避免殘留物質(zhì)加速老化:
用柔軟干布(如微纖維布)擦拭表面灰塵、油污,若有頑固污漬,可蘸取少量中性清潔劑(如肥皂水)輕輕擦拭,再用清水擦凈并完全晾干(避免水分殘留導(dǎo)致霉變)。
禁止使用酒精、汽油、丙酮等有機(jī)溶劑,以免腐蝕硅橡膠表面,破壞其密封性和柔韌性。
二、環(huán)境控制:隔絕老化誘因
硅橡膠的耐候性雖較好,但長期暴露在惡劣環(huán)境中仍會加速老化,需控制存放環(huán)境:
避光存放
硅橡膠對紫外線敏感,長期光照會導(dǎo)致分子鏈斷裂,出現(xiàn)變硬、龜裂。需將加熱器存放在陰涼處,避免陽光直射(如用不透光的紙箱或防塵罩覆蓋),遠(yuǎn)離紫外線燈、弧光燈等強(qiáng)光源。
控制溫濕度
溫度:存放環(huán)境溫度保持在-10℃~30℃,避免極端高溫(>40℃,會導(dǎo)致硅橡膠加速氧化)或低溫(<-20℃,可能使橡膠暫時硬化、脆性增加,易受機(jī)械損傷)。
濕度:相對濕度控制在30%~60%,潮濕地區(qū)需在存放空間放置干燥劑(如硅膠干燥劑,定期更換),或使用除濕袋,防止硅橡膠吸濕后出現(xiàn)霉變、絕緣性能下降。
隔絕腐蝕性環(huán)境
避免存放在有油污、酸堿氣體(如廚房、化工車間附近)或臭氧濃度高的場所,硅橡膠接觸油污會溶脹,接觸腐蝕性氣體易出現(xiàn)表面硬化、開裂。
與金屬件、尖銳物體分開存放,防止硅橡膠表面被劃傷或壓痕,破壞其完整性。
三、形態(tài)保護(hù):避免機(jī)械損傷與形變
硅橡膠具有一定彈性,但長期受力或折疊會導(dǎo)致永久形變,影響使用時的貼合性:
禁止折疊、重壓:存放時需平鋪或卷成直徑≥30cm的圓筒狀(避免小半徑卷曲導(dǎo)致內(nèi)部電熱絲受力),卷好后用軟繩松綁固定,不可用鐵絲、橡皮筋等緊勒,防止留下勒痕或斷裂。
避免拉伸或擠壓:放置在平整、無重物壓迫的區(qū)域,遠(yuǎn)離設(shè)備通道,防止被踩踏或碰撞,尤其注意保護(hù)接線端子附近的硅橡膠(此處易因受力開裂)。
獨立包裝:若有多片加熱器,需用牛皮紙或軟質(zhì)塑料膜分隔包裹,避免相互粘連(硅橡膠表面可能因靜電吸附灰塵,粘連后易磨損)。
四、定期維護(hù):延緩老化進(jìn)程
即使長期閑置,也需定期檢查并做簡單維護(hù),保持硅橡膠活性:
每2-3個月檢查一次:查看硅橡膠表面是否有裂紋、硬化、變色(如變黃、發(fā)黑),若發(fā)現(xiàn)局部輕微老化,可用硅橡膠專用養(yǎng)護(hù)劑(如食品級硅橡膠保護(hù)油)輕輕涂抹,增強(qiáng)柔韌性(注意避開接線端子等導(dǎo)電部位)。
避免長期斷電存放(針對帶電路的加熱器):若加熱器帶有引線或接線端子,需用絕緣帽包裹端子,防止受潮氧化;每3個月可通電10-15分鐘(低溫檔),利用輕微發(fā)熱驅(qū)散硅橡膠內(nèi)部潮氣,同時檢查電路是否正常(但需確保存放環(huán)境無易燃物)。
五、包裝與標(biāo)識:便于管理與取用
用透氣性好的包裝袋(如無紡布袋)或紙箱密封存放,既防塵又避免完全隔絕空氣導(dǎo)致硅橡膠“悶壞”。
在外包裝標(biāo)注“硅橡膠加熱器”“禁止重壓”“存放日期”等信息,便于追溯存放時間,優(yōu)先啟用存放時間較短的加熱器。
上一篇:
硅橡膠加熱器的哪些部件需要重點保養(yǎng)?
下一篇:
硅橡膠加熱器的檢修工作一般有哪些注意事項?
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